Ume Ingepac Ef MD Eng PDF
Ume Ingepac Ef MD Eng PDF
Ume Ingepac Ef MD Eng PDF
INGEPAC EF
User Manual
UME_INGEPAC_EF_eng Rev.: F (07/14)
1. GENERAL DESCRIPTION
COM1
COM2
COM3
COM4
COM5
COM6
ETH1
ETH2
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
I/O 8
INGEPAC EF MD MODEL M D A
MODEL
67, 67N, 67SN, 67NA, 67NC, 50/51, 50N/51N, 50SN/51SN, 50G/51G, 67Q, 46BC,
37, 49, 59, 27, 59N, 47, 81O/u, 81R, 32, CLP, 50V/51V, 87N, 68FF, HCL, 25, 79,
79(81), 74TC/CC, 50BF, Fault Locator 0
67, 67N, 50/51, 50N/51N, 67Q, 46BC, 49, 59, 27, 59N, 47, 81O/u, 81R, 32, 40, 78,
CLP, 50V/51V, 87N, 68FF, HCL, 25, 79, 79(81), 74TC/CC, 50BF 1
67, 67N, 67SN, 67IN, 67CN, 50/51, 50N/51N, 50SN/51SN, 50G/51G, 67Q, 46BC,
37, 49, 59, 27, 59N, 47, 81O/u, 81R, 32, CLP, 50V/51V, 87N, 68FF, 68ZC, HCL,
SOTF, 25, 79, 79(81), 85 (67/67Q), 74TC/CC, 50BF, Fault Locator 2
67, 67N, 67SN, 50/51, 50N/51N, 50SN/51SN, 67Q, 46BC, 49, 59, 27, 59N, 81O/u,
81R, 32, CLP, 68FF, HCL, 25, 79, 79(81), 74TC/CC, 50BF, Fault Locator 3
HOUSING
1/2 chassis 19" 5U with configurable keyboard A
1/2 chassis 19" 5U with predefined keyboard Note 1 B
Chassis 19" 4U with configurable keyboard C
Chassis 19" 4U with predefined keyboard Note 1 D
TERMINALS
Pin type standard terminals A
Closed terminals Note 2 B
Closed terminals for analog inputs and pin type standard terminals for the rest C
Figure 3 Redundant power supply ½ 19” chassis Figure 4 Redundant power supply 19” chassis
In the PRP protocol the device use two redundant ethernet ports and the protocol is based
on the simultaneous transmission and reception of data via both independent ports.
In PRP solutions two independent ethernet networks are used. Each device is attached to
both networks and sends and receives all the frames over both LANs simultaneously, consumes
the first frame and discards the duplicate. With this mechanism PRP ensures zero-packet
loss and zero recovery time upon single network failures.
The two LANs have no connection between them and are assumed to be fail-independent, both
are identical in protocol at the MAC-LLC level, but they can differ in performance and
topology.
With the PRP protocol additional information called RCT (Redundancy Control Trailer) is
added to the Ethernet frame at the link layer in order to control redundancy. This
information is transparent for devices that do not use PRP protocol and it is used by PRP
devices to discard the duplicate frames.
Devices without PRP can be connected to one of the redundant ethernet networks but in that
case they only can communicate with the devices connected to the same network. In order to
enable redundancy in non-PRP devices an external converter called RedBox (Redundancy Box)
can be used.
With the link failover redundancy the device uses two ethernet ports for a redundant
communication.
In this redundancy mode the device communicates by one of the ethernet ports and if there
is a link failure in that port, switches to the redundant port if the link status of that
port is active.
If the link status of the passive port returns to normal, the communication is maintained
in the active port and the devices only change the active port in case of link failure.
In this redundancy, unlike the case of PRP redundancy, it should not be used two
independent ethernet networks. The two Ethernet ports of the equipment must be connected to
different network switches, but must belong to the same network, so that the switches
should be connected at some point in the network.
This switching is almost instantaneous, allowing even gooses redundancy without loss or
minimal loss (1 repetition). Regarding communications with IEC 61850 clients, depending on
the ring reconfiguration time communications, we even could not lose the connection or the
open session.
The HSR is a redundancy communication protocol defined in the IEC 62439-3 standard and it
is one of the redundancy mechanism recommended in IEC 61850 networks.
In the HSR protocol the device use two redundant ethernet ports and the protocol is based
on the simultaneous transmission and reception of data via both independent ports.
In the HSR networks no external switches are used, instead each device has two ring ports,
and all the devices are connected in a ring topology, with one port of the device connected
to the previous device and the other connected to the following device.
For each frame to send, the device sends it duplicated over both ports. So one frame
travels in the ring in the clockwise direction and the other frame travels in counter-
clockwise direction. Each direction is treated as a separate network. So if there is a
failure in one point of the network, the frames reach the destination using the other
direction in the ring. With this mechanism HSR ensures zero-packet loss and zero recovery
time upon single network failure.
An HSR tag is placed at the beginning of each frame to allow early identification of
frames. With this tag each device can identify the HSR tagged traffic and reject the
duplicated frames coming from the both ports of a device and the frames circulating in the
ring. When a device receives a frame directed to it or that it sent, the frame is discarded
and it is not forwarded again in the ring. The frame is also discarded if it is a frame
that it already sent in the same direction (i.e. multicast frames).
Devices within the ring are restricted to be HSR-capable IEDs. In order to enable
redundancy in non-HSR devices an external converter called RedBox (Redundancy Box) can be
used.
1.7 INTERCONNECTIONS
Interconnections depend on the modules selected. The connections associated to each of the
modules are indicated, and thus the diagram will depend on the modules installed.
1.7.1 CPU
Figure 5 3-contact relay and IRIG-B
Module 1 (Figure 8): Equipped with 11 digital inputs and 9 digital outputs
grouped as follows:
Inputs: 4 independents + 3 with a common point + 4 with a common point.
Outputs: 5 independents + 3 with a common point + 1 switched (3 contacts).
Module 2 (Figure 9): Equipped with 16 digital inputs and 16 digital outputs
grouped as follows:
Inputs: 16 with a common point.
Outputs: 16 with a common point.
Module 3 (Figure 10): Equipped with 16 digital inputs and 8 digital outputs
grouped as follows:
Inputs: 16 with a common point.
Outputs: 8 independent.
Module 5 (Figure 12): Equipped with 16 digital inputs and 8 analogue inputs
grouped as follows:
Inputs: 16 with a common point.
Analogue: 8 independent. The analogue inputs have standard configuration,
that could be changed among the options: ±1mA, ±2.5mA, ±5mA, ±20mA, ±5V,
±10V
Module 6 (Figure 13): Equipped with 16 digital inputs and 8 analogue inputs
(4 isolated) grouped as follows:
Inputs: 16 with a common point.
Analogue: 8 independent, 4 of them are isolated and 4 have a common point.
The analogue inputs have standard configuration, that could be changed
among the options: ±1mA, ±2.5mA, ±5mA, ±20mA, ±5V, ±10V
Módule 7 (Figure 14): Equipped with 8 digital inputs, 4 high speed digital outputs
(hbco) and 4 digital outputs grouped as follows:
Inputs: 8 independent.
Outputs: 8 independent.
Módule 8 (Figure 15): Equipped with 8 digital inputs, 8 digital outputs grouped as
follows:
Inputs: 8 independent.
Outputs: 8 independent.
Figure 18 Wiring diagram Iphase, In, Isg, Ipol, Vphase, V0 and Vsyn
2. HARDWARE
The rear section will vary in accordance with the options selected for the unit. The
following figures show various possible configurations.
Graphic display
19 general use LEDs with interchangeable labels
1 2-colour unit status LED
Numeric keypad
7 operational keys
Ethernet communication
Master USB communication
Depending on the model, the following are available:
5 functional keys for selecting with interchangeable labels + 2 operational
keys
3 fixed function keys + 2 operational keys.
Graphic display
19 general use LEDs with interchangeable labels
1 2-colour unit status LED
Numeric keypad
7 operational keys
Ethernet communication
Master USB communication
Depending on the model, the following are available:
14 functional keys for selecting with interchangeable labels + 2 operational
keys
3 fixed function keys + 2 operational keys + 7 functional keys with
interchangeable labels for selecting.
Operating range:
Direct: 85Vdc up to 300Vdc
Alternating: 85Vac up to 265Vac
24/48 Vdc models: 24Vdc-20% up to 48Vdc + 20%:
Operating range:
Direct: 18Vdc up to 60Vdc
Burden. Depends on the cards connected.
Signal outputs:
The characteristics of the 3-contact switched, common point signal outputs are:
Permanent current: 5 A at 25ºC
Make:
30 A ½ sec.
20 A 1 sec.
Open or break capacity:
200Vdc 125Vdc 48Vdc
Rated V Characteristics
Not activated below 9 Vdc.
24Vdc Activated above 12 Vdc.
Maximum voltage 72 Vdc
Not activated below 32 Vdc.
48Vdc Activated above 37 Vdc.
Maximum voltage 72 Vdc
Not activated below 82 Vdc.
125Vdc They are activated above 87 Vdc.
Maximum voltage 300 Vdc
Not activated below 165 Vdc.
250Vdc Activated above 172 Vdc.
Maximum voltage 300 Vdc
The number of units that can be connected in parallel to a generator depends on the
output current supply capacity; a typical value is 70 mA, which would enable the
connection of 6 units (although the length and the type of cable can also influence). The
cable must be shielded and twisted.
Thermal capacity
Permanent 20 A
Short duration 50 A (10 sec.)
500 A (1 sec.)
2.4.5.1 Accuracy
Current
Measurement range (0 to 1.2*In)
With In = 1: class 0.5 (0.5% of FS)
With In = 5: class 0.5 (0.5% of FS)
Protection range (0 to 200 A)
1 % over the measurement or 2 mA (greater)
Voltage
Measurement range (0 to 1.2*Vn)
Accuracy 0.5% of FS
Protection range (0 to 200 Vac)
1 % over the measurement or 50 mV (greater)
Dephase angle
Accuracy 1º
Power
Measurement range (0 to 1.2*In*1.2*Vn)
With In = 1: class 1 (1% of Pn)
With In = 5: class 0.5 (0,5% of Pn)
Time accuracy:
ST connector
Wavelength: 1300nm
Permitted attenuation 8 db with glass fiber
Multimode glass optical fiber: 62.5 /125 µm
Baud rate: 100 Mb.
Maximum distance: 1.5km
Ethernet via LC conector
Connector: LC duplex
Wavelength: 1310 nm
Permitted attenuation 8 db with glass fiber
Multimode: 62.5/125 u m and 50/125um
Baud rate: 100 Mb.
Maximum distance: 1.5km
ST connector
Wavelength: 820nm
Permitted attenuation: 8 db with 62.5 /125 µm glass fiber
HP standard connector
Wavelength: 660nm
Permitted attenuation: 24.7db with 1mm plastic cable and 22db with 200 µm
silica cable
Maximum distance: 115m with 1mm plastic cable and 1.9km with 200 µm silica
cable
RS232
Connector LC dúplex or ST
Wavelength: 1310nm
Permitted attenuation: 30db
Singlemode: 9/125 nm
Maximum distance: 60km
2.6 TESTS
3. PROTECTION FUNCTIONS
3.1 GENERAL
This section lists all the protection functions. Those included in each model are listed in
the functional description.
General Start. Indicates that one of the units that causes a general trip is
started.
General Trip. Indicates that one of the units that causes a general trip is
activated.
Pole A General Trip. Indicates that one of the units that causes a general trip of
pole A is activated.
Pole B General Trip. Indicates that one of the units that causes a general trip of
pole B is activated.
Pole C General Trip. Indicates that one of the units that causes a general trip of
pole C is activated.
OC General Start. Indicates that one of the overcurrent units is started.
OC General Trip. Indicates that one of the overcurrent units is activated.
51 Start. Indicates that any of the time delay phase overcurrent unit is started.
51N Start. Indicates that one of the time delay neutral overcurrent units is
started.
51NS Start. Indicates that one of the time delay sensitive neutral overcurrent
units is started.
51ES Start. Indicates that one of the time delay earth system overcurrent units is
started.
51UN Start. Indicates that one of the time delay unbalance overcurrent units is
started.
51 Trip. Indicates that one of the time delay phase overcurrent units is activated.
51N Trip. Indicates that one of the time delay neutral overcurrent units is
activated.
51NS Trip. Indicates that one of the time delay sensitive neutral overcurrent units
is activated.
51ES Trip. Indicates that one of the time delay earth system overcurrent units is
activated.
51UN Trip. Indicates that one of the time delay unbalance overcurrent units is
activated.
50 Start. Indicates that one of the instantaneous phase overcurrent units is
started.
50N Start. Indicates that one of the instantaneous neutral overcurrent units is
started.
50NS Start. Indicates that one of the instantaneous sensitive neutral overcurrent
units is started.
50ES Start. Indicates that one of the instantaneous earth system overcurrent units
is started.
50UN Start. Indicates that one of the instantaneous unbalance overcurrent units is
started.
50 Trip. Indicates that one of the instantaneous phase overcurrent units is
activated.
50N Trip. Indicates that one of the instantaneous neutral overcurrent units is
activated.
50NS Trip. Indicates that one of the instantaneous sensitive neutral overcurrent
units is activated.
50ES Trip. Indicates that one of the instantaneous earth system overcurrent units
is activated.
50UN Trip. Indicates that one of the instantaneous unbalance overcurrent units is
activated.
HCL Start. Indicates that one of the HCL units is started.
HCL Trip. Indicates that one of the HCL units is activated.
Voltage Start. Indicates that one of the voltage units is started.
IOV Start. Indicates that one of the overvoltage units is started.
IUV Start. Indicates that one of the undervoltage units is started.
Minimum F Start. Indicates that one of the underfrequency units is started.
Maximum F Start. Indicates that one of the overfrequency units is started.
dfdt Start. Indicates that one of the df/dt units is started.
Voltage Trip. Indicates that one of the voltage units is activated.
IOV Trip. Indicates that one of the overvoltage units is activated.
IUV Trip. Indicates that one of the undervoltage units is activated.
Minimum F Trip. Indicates that one of the underfrequency units is activated.
Maximum F Trip. Indicates that one of the overfrequency units is activated.
dfdt Trip. Indicates that one of the df/dt units is activated.
3.1.2 Commands
Certain commands enable actions to be taken on the protection functions. Each functions
specific characteristics are listed in the corresponding section. This section lists the
general functions. Table 3 shows the functions affected by the general commands.
The general protection commands are in the PROT/PTRC node, allowing the
blocking/unblocking of the associated functions:
To reset, the current must fall below 95% of the setting value.
The timed unit can be configured with a minimum response time, that is, a limit that
prevents any unit from tripping below a minimum time when the trip time corresponding
to the curve in use is met. This is done to prevent timed trips from being faster than
instantaneous trips. It is configured with additional time setting, so that if it set
to zero, there is no such limit.
Time dial. Indicates the time curve within the selected characteristic.
Operate/minimum time (ms). It has a different functionality depending on the type
of curve selected:
When the selected curve is a definite time, it indicates the time during
which the conditions for the tripping of the function must be met.
In the rest of the curve, it indicates the minimum response time. i.e., in
order for a trip to be produced, the time employed will be greater between
this setting and the time associated to the curve.
Torque control. Selects the function’s directional type:
“NO”. Acts as non-directional.
“Forward”. Acts when the directional indicates forward.
“Reverse”. Acts when the directional indicates reverse.
Behaviour with Fuse fail. Defines the function’s action if a fuse failure is
detected.
"Idle". The fuse failure does not affect the function.
"Non directional". The function acts as non-directional when a fuse failure
is detected.
"Block". The function blocks, i.e., it does not act, when a fuse failure is
detected.
"Enable". The function is enabled when a fuse failure is detected.
Reset type. Allows the emulation of the induction operation. The following options
are available:
"Instantaneous". If the current drops below 95% of the setting value, both
the trip and pick up reset instantaneously.
"Timed". If the current drops below 95% of setting value, the trip drops
out instantaneously, while the pick up reset time will depend on the
selected curve (family and index) and the current. If a definite time curve
is selected, the pick up will reset upon the completion of the time
programmed for the pick up as of the moment in which it falls below the
pick up current, regardless of the current value.
Operating Quantity. Indicates the measurement used by the function:
"Phasor". Uses the fundamental measurement, without including harmonics.
"Rms". Uses the effective value, including harmonics.
Blocking Input. Selects the signal which, when active, blocks the function.
Time delay cancellation Input. Selects the signal which, when active, generates the
instantaneous trips regardless of the setting time.
General trip. Indicates if this unit produces general trip or not. For additional
details, see section corresponding to the recloser (5.2.3).
TripP:RL,RR,RL,R:1,2,3,4,MC. Indicates the trip and block permission in accordance
with the recloser status: standby, blocked, safety time after reclosing, after
closing. It is configured bit by bit; for additional details, see section
corresponding to the recloser (3.13.4).
Reclose perm.(R1,R2,R3,R4). Indicates whether each trip type can be reclosed or
not, in accordance with the recloser's closing cycle (5.2.5).
Enable Events record. Allows the generation of protection events associated to the
function. If set to “NO”, the function’s protection events are not generate. If set
to “YES”, the function’s specific mask is contemplated.
In which:
To reset, the current must fall below 95% of the setting value.
In which:
There are logical “function X directional inhibition” inputs that allow the directional
units to which they are applied to be converted into non-directional. These inputs allow
for a unit's conversion into non-directional in the case of a fuse failure, for example.
This function’s general settings and those applied in the quadrature and direct
sequence criteria are in the PROT/RDIR1 node:
The minimum polarization current is considered as 50% of the minimum setting of the
three timed phase units (51).
The quadrature and direct sequence units settings, commands and outputs.
PROT/RDIR1 node
Settings and logical inputs. There are 6 settings tables. For details see Table 6.
Commands:
3.2.2.1.1 Quadrature
For the detection of directionality in phases, the polarization voltage corresponds
to the quadrature connection (90º), in which each phase’s current is compared with
the phase to phase voltage between the other two phases (see Figure 30).
MTA _FASES
j
Phase Ia Spol Vbc Sop Ia e 2 180
j MTA _FASES
Sop Ib e 180
2
Phase Ib Spol Vca
j MTA _FASES
Sop Ic e 180
2
Phase Ic Spol Vab
The “2 out of 3” means that the unit only signals forward if this direction is seen
in 2 phases. Avoid cases in which, with a reverse fault, certain of the phases
detected a forward fault (e.g., weak in-feed). In the case of weak in-feed due to
the breaking of a transformer, there is only zero sequence current circulation and
therefore the three phases detect the same current. In this case, one of the 3
phases will detect the fault in the opposite direction to the other two.
It operates as three single phase units in which polarization voltages are the
phase to phase voltages of the healthy phases. These may be obtained by calculation
or by transformer measurement, depending on whether the voltage setting type
indicates that the signals entered are phase to ground voltages (calculation) or
phase to phase voltages (measurement).
In the case of an ABC phase sequence, polarization is effected with Vab, Vbc and
Vac, for Ic, Ia and Ib. In the case of a CBA phase sequence, polarization is
effected with Vba, Vcb and Vac, for Ic, Ia and Ib.
There is a 5º zone between the non-trip zone and the trip zone in which the current
directional status is maintained.
This unit’s signals are independent for each of the phases (see Table 7).
Memory
The current quadrature voltage is used. If it falls below the Vpol threshold, the
value memorized in accordance with the memory management explained in the
polarization memory monitoring is used. It is also affected by the serial
compensation logic in so far that if it is set to YES the memorized voltage is used
as of the moment in which a fault or a voltage inversion is detected.
The directional block is used when the polarization voltage is below a threshold
(VPOL_FASES) or the operating current is below another threshold (Iphase <
(IMIN_FASES)). “Polarization Failure X” is indicated. If the trip permission
without polarization V is set to YES, the trip is permitted. If set to NO, it is
blocked.
S1pol V1
j MTA_FASES
180
S1op I1 e
There is a 5º zone between the non-trip zone and the trip zone in which the current
directional status is maintained.
This unit’s signals are the same as those of the quadrature, with the difference
that the three phases are always given simultaneously (see Table 7).
Memory
The directional block is used when the V1 polarization voltage is below a threshold
(VPOL_FASES) or the operating current is below another threshold (Iphase<
(IMIN_FASES)). “Phase A, B and C polarization fault” is indicated.
If the V1 polarization voltage is below the threshold (VPOL_FASES) and the trip
permission without polarization V is set to YES, the trip is permitted. If set to
NO, it is blocked.
If the inverse sequence indicates the direction, the direct sequence is not
consulted.
If the inverse sequence indicates a polarization failure, the direct sequence
is consulted.
The direction is determined by comparison between the negative sequence voltage and
current, with I2 superior to a threshold and V2 superior to a threshold (see Figure
32)
If the inverse sequence polarization voltage (S2pol) is less than a threshold (Setting
“Vpol_S2”), or if the inverse sequence current is below a threshold (3I2<IMIN_IN_S2 or
3I2<IMIN_I1_S2xI1/100 ), “Inverse sequence polarization fault” is indicated.
This function’s general settings and those applied in the quadrature and direct
sequence criteria are in the PROT/S2RDIR1 node:
The quadrature and direct sequence units settings, commands and outputs:
PROT/S2RDIR1 node
Settings and logical inputs. There are 6 settings tables. See Table 8.
Commands:
“DOrdBlk”: Function block and unblocking.
“DOrdInvDir”. Inverts the directional’s trip direction
Outputs:
67N-S2 Forward. The detected direction indicates forward.
67N-S2 Reverse. The detected direction indicates reverse.
Polarization Failure S2. Indicates that the direction has not been detected
due to a polarization failure.
S2 directional inhibition. Indicates that the directional is inhibited.
S2 direction inversion. Indicates that the direction is opposite to the
setting.
INTERNAL CALCULATION
|3V2| +
-
<
SETTING DIGITAL SIGNAL
Vpol_S2 Polarization Failure S2
INTERNAL CALCULATION
3I2/In (Rated I of the CT) +
-
<
SETTING
IMIN_IN_S2 (% of In)
Time
INTERNAL CALCULATION
N/4
I2/I1 +
-
<
SETTING n/4
IMIN_I1_S2 (%)
DIGITAL SIGNAL
SETTING
PERMISSION WITHOUT 67N-S2 Forward
VPOL=YES
INTERNAL CALCULATION Time
|ANG(SOP/SPOL)|=AMP_S2/2 N/4
DIGITAL SIGNAL
INTERNAL CALCULATION n/4 67N-S2 Reverse
|ANG(SOP/SPOL)+180|=AMP_S2/2
Allows the memorized voltage to be used during the configured time when the current
voltage is not apt.
Minimum V1. Indicates the minimum V1 value for employing the memorized voltage. It
is set at 10V.
V1 maintenance time. Indicates the time during which the memorized voltage is used
in the polarization by direct sequence. It is set at 30 cycles.
Minimum Vc. Indicates the minimum quadrature voltage for employing the memorized
voltage. It is set at 30V.
Vc maintenance time. Indicates the time during which the memorized voltage is used
in the polarization by quadrature. It is set at 30 cycles.
This unit’s operating scheme is:
The function’s logic diagram is shown in Figure 34 (direct sequence) and Figure 35
(quadrature).
INTERNAL VALUE
V1MEM=V1
INTERNAL VALUE
V1MEM=V1(n-2cycles)
Time
INTERNAL MEASUREMENT
2 CYCLES
V1
≥ S
SETTING Time INTERNAL VALUE
0
VPOL_FASES 0 V1MEM=V1MEM
R
10
CYCLES
INTERNAL VALUE
V1POLARIZ=V1
INTERNAL VALUE
V1POLARIZ=V1MEM
INTERNAL VALUE
VABMEM=VAB
INTERNAL VALUE
VABMEM=VAB(n-3cycles)
Time
INTERNAL MEASUREMENT 2 CYCLES INTERNAL VALUE
VAB S VABMEM=VABMEM
SETTING ≥ 0
Time
0
VPOL_FASES
R
10
CYCLES INTERNAL VALUE
VABPOLARIZ=VAB
INTERNAL VALUE
VABPOLARIZ=VABMEM
The operation can be selected from among: angular, cosine, sine and watt-metric.
Various options can be selected from within the angular criterion.
This unit’s settings are in the PROT/GRDIR node. In accordance with the selected mode,
they affect:
General
Minimum power (Icos, Isin, Watt): Power value P=Vn·In·cos(-c),, in which =Angle
between Vn and In. If the power negative and higher than this value, a forward
fault is registered. If it is positive and higher than this value, a reverse fault
is registered.
Icos<->Isen method switch. If a signal is assigned to this input, it indicates the
directional type employed (independent of the setting) I·cosϕ if the input is 0
(deactivated) and I·senϕ if the input is 1 (activated). If no signal has been
assigned, the criterion selected for the setting is employed.
PROT/GRDIR1 node
Settings and logical inputs. There are 6 settings tables. See Table 10for details.
Commands:
“DOrdBlk”: Function block and unblocking.
“DOrdInvDir”. Inverts the directional’s trip direction
Outputs: Table 11 shows the function’s output data.
67N Forward. The detected direction indicates forward.
67N Reverse. The detected direction indicates reverse.
Polarization Failure In. Indicates that the direction has not been detected
due to a polarization failure.
Ground directional inhibition. Indicates that the directional is inhibited.
Ground direction inversion. Indicates that the direction is opposite to the
setting.
IV
If the I unit does not determine the polarization fault direction, the voltage
signal combination is displayed.
If the result is “Without VPOL”, the “Trip permission without neutral VPOL” setting
is inspected.
I and V
If the I unit does not determine the direction, the voltage signal combination is
displayed. If it agrees with the result, a forward or reverse indication is made.
If V lacks sufficient polarization, the result is decided in accordance with the
"Trip permission without neutral Vpol" setting.
If the I or V unit does not determine the direction, a "polarization fault” message
is indicated and a decision is taken in accordance with the “trip permission
without Vpol” setting.
I or V
S0S2
If the S0 unit does not determine the direction, a “neutral V polarization failure”
signal is activated and S2 is displayed.
If the conditions for determining the direction are still not given, a “inverse
sequence polarization failure” signal is activated and the “trip permission without
Vpol” setting is consulted in order to decide whether trip permission is to be
given or not.
One unit set in reverse and one set forward. s0 indicates reverse and s2 forward.
Only reverse would be signalled (due to s0).
V0 V2 Result
F F or R or Without Vpol F
R F or R or Without Vpol R
Without Vpol F F
Without Vpol R R
Without Vpol Without Vpol Without Vpol
S0 & S2
If either of the units (S0 or S2) does not determine the direction, a “inverse
sequence polarization fault” or “Neutral V polarization fault” signal is activated
and the signalling is decided upon in accordance with the “trip permission without
Vpol” setting.
Specific situations:
One unit set in reverse and one set forward. S0 indicates reverse and S2 forward.
No output is given.
V0 V2 Result
F F F
F R Nothing
R R R
R F Nothing
F Without Vpol Without Vpol
R Without Vpol Without Vpol
Without Vpol F Without Vpol
Without Vpol R Without Vpol
Without Vpol Without Vpol Without Vpol
S0 OR S2
If the V2 unit does not determine the direction, an “inverse sequence polarization
failure” signal is activated.
If the conditions for determining the direction are still not given in S0, a
“Neutral V polarization failure” signal is activated and the “trip permission
without Vpol” setting is consulted in order to decide whether trip permission is to
be given or not.
V0 V2 Result
F F F
F R F & R
R R R
R F F & R
F Without Vpol F
R Without Vpol R
Without Vpol F F
Without Vpol R R
Without Vpol Without Vpol Without Vpol
3.2.2.4.2 S0 polarization
The direction is determined by comparing the neutral current (3·I0) with the
neutral voltage as polarization, (-3·V0). The angle determines the range in which
the fault is considered as a forward fault and as a reverse fault.
S0pol VN
jMTA _S0
180
S0op IN e
The VN=3·V0 voltage can be calculated using the phase to earth voltages of the
phases or it can be measured by a transformer, in accordance with the “V0
measurement type” setting in the PROT/PVGE1 node. If the “voltage type” setting is
set to “phase to phase”, the zero sequence voltage calculated will always be zero
and this unit cannot be used.
The 3I0 measurement can also be calculated using the sum of the phase currents in
those models in which a transformer is not assigned to this measurement.
There is a 5º zone between the non-trip zone and the trip zone in which the current
directional status is maintained.
The directional block is used when the S0pol polarization voltage is below a
minimum V polarization threshold (VPOL_S0 setting) or the operating current is
below another current threshold (Ineutro<IMIN_IN_S0 or Ineutro<IMIN_I1_S0xI1/100).
“Neutral polarization fault” is signalled.
If the trip permission without V polarization is set to YES, the trip is permitted
(if VN<Vpol_S0). If set to NO, it is blocked. That is, the trip is allowed only the
absence of Vn.
INTERNAL CALCULATION
|VN| +
-
<
SETTING DIGITAL SIGNAL
Vpol_S0 Polarization fault 67N_S0
INTERNAL CALCULATION
IN/In (Rated I of the CT)
+
SETTING -
<
IMIN_IN_S2 (% of In)
INTERNAL CALCULATION
Time
IN/I1 N/4
+
SETTING -
<
IMIN_I1_S2 (%) n/4
DIGITAL SIGNAL
SETTING
PERMISSION WITHOUT 67N Forward
VPOL=YES
Time
INTERNAL CALCULATION
N/4
|ANG(SOP/SPOL)|≤AMP_S0/2 DIGITAL SIGNAL
INTERNAL CALCULATION n/4 67N Reverse
|ANG(SOP/SPOL)+180|≤AMP_S0/2
3.2.2.4.3 I polarization
The direction is determined by comparing the grounding current (Ipol) with the
neutral current. To be able to verify the direction, Ipol> IMIN_IPOL_S0 must be
met.
There is a 5º zone between the non-trip zone and the trip zone in which the current
directional status is maintained, both for voltage and for current polarization.
In order to allow the directional unit to pick up, the following must be met:
For reverse faults, the angle between the current and the displaced voltage,
the maximum torque angle must be between 275 and 85.
275<Ang(I0)-angle(V0)+Torque angle<85
The power P=Vn·In·cos(-c) must exceed the minimum P threshold by the
absolute value. If the sign of P is negative, the fault is forward. If
positive, the fault is reverse. The equation to be implemented for calculating
P is as follows:
P Re(V) cos Im(V) sin Re(I) Im(V) cos Re(V) sin Im(I)
I*cos() directional
In order to allow the directional unit to pick up, the following must be met:
For reverse faults, the angle between the current and the displaced
voltage, the maximum torque angle must be between 275 and 85.
275<Ang(I0)-angle(V0)+Torque angle<85
The trip zone will depend on the angle between the zero sequence
voltage and the zero sequence current. If we are in the trip zone,
the directional will issue trip permission when the value of cos(-
c) exceeds the setting (in a negative value).
Re( V) cos Im(V) sin Re( I) Im(V) cos Re(V) sin Im(I)
I·cosv i
V
As the neutral units allow trip permission to be issued with forward and with
reverse faults, in reality the characteristics will be as follows.
Figure 41 Forward/Reverse with cosine polarization
In order to allow the directional unit to pick up, the following must be met:
For reverse faults, the angle between the current and the displaced
voltage, the maximum torque angle must be between 5 and 175.
5<Ang(I0)-angle(V0)+Torque angle<175
Im(V) cos Re(V) sin Re(I) Re(V) cos Im(V) sin Im(I)
I·sinv i
V
Figure 42 Directional with sine polarization
The operation can be selected from among: angular, cosine, sine and watt-metric.
Various options can be selected from within the angular criterion.
This unit’s settings are in the PROT/SGRDIR node. In accordance with the selected
mode, they affect:
General
PROT/SGRDIR1 node
Settings and logical inputs. There are 6 settings tables. See table 6 for settings.
See Table 12 for details.
Commands:
“DOrdBlk”: Function block and unblocking.
In order to allow the directional unit to pick up, the following must be met:
For reverse faults, the angle between the current and the displaced voltage,
the maximum torque angle must be between 275 and 85.
275<Ang(I0)-angle(V0)+Torque angle<85
P Re(V) cos Im(V) sin Re(I) Im(V) cos Re(V) sin Im(I)
I*cos() directional
In order to allow the directional unit to pick up, the following must be met:
For reverse faults, the angle between the current and the displaced voltage,
the maximum torque angle must be between 275 and 85.
275<Ang(I0)-angle(V0)+Torque angle<85
The trip zone will depend on the angle between the zero sequence voltage and
the zero sequence current. If we are in the trip zone, the directional will
issue trip permission when the value of Io·cos(-c) exceeds the setting (in a
negative value).
Re( V) cos Im(V) sin Re( I) Im(V) cos Re(V) sin Im(I)
I·cosv i
V
As sensitive neutral units allow trip permission to be issued with forward and with
reverse faults, in reality the characteristics will be as follows.
In order to allow the directional unit to pick up, the following must be met:
For reverse faults, the angle between the current and the displaced voltage,
the maximum torque angle must be between 5 and 175.
5<Ang(I0)-angle(V0)+Torque angle<175
Im(V) cos Re(V) sin Re(I) Re(V) cos Im(V) sin Im(I)
I·sin v i
V
Each of the three units has independent settings, commands and outputs.
Nodes:
Unit 1: PROT/PIOC1
Unit 2: PROT/PIOC2
Unit 3: PROT/PIOC3
Settings and logical inputs. There are 6 settings tables. See Table 5
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 14 shows the function’s output data.
IOC1 Start phase X. Indicates that the unit's phase has picked up. It is
independent for each phase.
IOC1 Trip phase X. Indicates that the unit's phase has tripped. It is
independent for each phase.
IOC1 Phase Status. Indicates the function’s status. It is active when
enabled and not blocked. This is general for all three phases.
IOC1 phase Start. Indicates that the unit has picked up
IOC1 phase Trip. Indicates that the unit has tripped.
3.2.3.2 Timed
There are 3 independent units for each of the phases.
Each of the three units has independent settings, commands and outputs.
Nodes:
Unit 1: PROT/PTOC1
Unit 2: PROT/PTOC2
Unit 3: PROT/PTOC3
Settings and logical inputs. There are 6 settings tables. See Table 4
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 15 shows the function’s output data.
TOC1 Start phase X. Indicates that the unit's phase has picked up. It is
independent for each phase.
TOC1 Trip phase X. Indicates that the unit's phase has tripped. It is
independent for each phase.
TOC 1 Phase Status. Indicates the function’s status. It is active when
enabled and not blocked. This is general for all three phases.
TIOC1 phase Start. Indicates that the unit has picked up
TOC1 phase Trip. Indicates that the unit has tripped.
3.2.4.1 Instantaneous
There are 3 independent units.
Each of the three units has independent settings, commands and outputs.
Nodes:
Unit 1: PROT/GPIOC1
Unit 2: PROT/GPIOC2
Unit 3: PROT/GPIOC3
Settings and logical inputs. There are 6 settings tables. See Table 5.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 16 shows the function’s output data.IOC1 Ground Status. Indicates
the function’s status. It is active when enabled and not blocked.
3.2.4.2 Timed
There are 3 independent units.
Each of the three units has independent settings, commands and outputs.
Nodes:
Unit 1: PROT/GPTOC1
Unit 2: PROT/GPTOC2
Unit 3: PROT/GPTOC3
Settings and logical inputs. There are 6 settings tables. See Table 4.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs:Table 17shows the function’s output data.
GTOC1 Start. Indicates that the unit has picked up.
GTOC1 Trip. Indicates that the unit has tripped.
The setting range changes in relation to that shown in the overcurrent units:
3.2.5.1 Instantaneous
There are 3 independent units.
Each of the three units has independent settings, commands and outputs.
Nodes:
Unit 1: PROT/SGPIOC1
Unit 2: PROT/SGPIOC2
Unit 3: PROT/SGPIOC3
Settings and logical inputs. There are 6 settings tables. See Table 5, except for
the pick up and additional time ranges.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 18 shows the function’s output data.
SGIOC1 Start. Indicates that the unit has picked up.
SGIOC1 Trip. Indicates that the unit has tripped.
IOC1 Sensitive Ground Status. Indicates the function’s status. It is active
when enabled and not blocked.
3.2.5.2 Timed
There are 3 independent units.
Each of the three units has independent settings, commands and outputs.
Nodes:
Unit 1: PROT/SGPTOC1
Unit 2: PROT/SGPTOC2
Unit 3: PROT/SGPTOC3
Settings and logical inputs. There are 6 settings tables. See Table 4, except for
the pick up and additional time ranges.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 19 shows the function’s output data.
SGTOC1 Start. Indicates that the unit has picked up.
SGTOC1 Trip. Indicates that the unit has tripped.
TOC1 Sensitive Ground Status. Indicates the function’s status. It is active
when enabled and not blocked.
Table 19 Sensitive neutral timed function outputs
3.2.6.1 Instantaneous
There are 3 independent units.
Each of the three units has independent settings, commands and outputs.
Nodes:
Unit 1: PROT/ESPIOC1
Unit 2: PROT/ESPIOC2
Unit 3: PROT/ESPIOC3
Settings and logical inputs. There are 6 settings tables. See Table 5.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 20 shows the function’s output data.
ESIOC1 Start. Indicates that the unit has picked up.
ESIOC1 Trip. Indicates that the unit has tripped.
IOC1 Earthing System Status. Indicates the function’s status. It is active
when enabled and not blocked.
3.2.6.2 Timed
There are 3 independent units.
Each of the three units has independent settings, commands and outputs.
Nodes:
Unit 1: PROT/ESPTOC1
Unit 2: PROT/ESPTOC2
Unit 3: PROT/ESPTOC3
Settings and logical inputs. There are 6 settings tables. See Table 4.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 21 shows the function’s output data.
ESTOC1 Start. Indicates that the unit has picked up.
ESTOC1 Trip. Indicates that the unit has tripped.
TOC1 Earthing System Status. Indicates the function’s status. It is active when
enabled and not blocked.
Table 21 Timed grounding function outputs
3·I2=(Ia+a2·Ib+a·Ic) In which=1|120º
The calculation of the sequence takes into phase succession order setting (ABC/ACB).
The measurement type setting is not used, as the fundamental is always used.
3.2.7.1 Instantaneous
There are 3 independent units.
Each of the three units has independent settings, commands and outputs.
Nodes:
Unit 1: PROT/UNPIOC1
Unit 2: PROT/UNPIOC2
Unit 3: PROT/UNPIOC3
Settings and logical inputs. There are 6 settings tables. It employs the settings
in Table 5, with the exception of the measurement type.
Commands:
“DOrdBlk”: Function blocking and unblocking. Only acts when the function is
enabled.
Outputs: Table 22 shows the function’s output data.
UNIOC1 Start. Indicates that the unit has picked up.
UNIOC1 Trip. Indicates that the unit has tripped.
IOC1 Unbalance Status. Indicates the function’s status. It is active when
enabled and not blocked.
3.2.7.2 Timed
There are 3 independent units.
Each of the three units has independent settings, commands and outputs.
Nodes:
Unit 1: PROT/UNPTOC1
Unit 2: PROT/UNPTOC2
Unit 3: PROT/UNPTOC3
Settings and logical inputs. There are 6 settings tables. Employs the settings in
Table 4, with the exception of the measurement type.
Commands:
“DOrdBlk”: Function blocking and unblocking. Only acts when the function is
enabled.
Outputs: Table 23 shows the function’s output data.
UNTOC1 Start. Indicates that the unit has picked up.
UNTOC1 Trip. Indicates that the unit has tripped.
TOC1 Unbalance Status. Indicates the function’s status. It is active when
enabled and not blocked.
Table 23 Timed unbalanced function outputs
Restraint by phase or for all the phases is available for the 50/51 units. The units to
be blocked are selected by settings.
The current must be less than 95% of the minimum current threshold, or
The current must be below 95% of the restraint percentage threshold
The restraint is calculated independently for each phase, neutral and sensitive neutral.
The phase units’ restraint can act per phase (the restraint in any one phase only blocks
the phase in question) or it can be general (the restraint in any one phase blocks all
the phases).
For the unbalance unit restraint, it is sufficient that the conditions are given in a
phase or in the neutral.
Enabled. Indicates whether the function is enabled or not. The options available
are:
YES. It is enabled
NO. It is disabled
Only in close. Is enabled for a second after closing.
I 2nd/fund. Threshold (%). Indicates the percentage of the 2nd harmonic in relation
to the fundamental above which the restraint is produced.
Minimum current (A). Minimum value of the fundamental current in order for the
restraint to be produced. No restraint is indicated below this value, even when the
% I 2nd/Ifund is above the setting.
Restraint. Enables the units on which the restraint is to act to be indicated.
There are separate settings for each unit. In general, the setting is "NO/YES",
except in those phases that can be:
NO. Restraint is not permitted
Phase. The restraint in one phase only blocks the phase in question.
General. The restraint in one phase blocks all the phases.
Harm.Restraint Blocking. Selects the signal which, when active, blocks the
function.
Enable Events record. Allows the generation of protection events associated to the
function. If set to “NO”, the function’s protection events are not generate. If set
to “YES”, the function’s specific mask is contemplated.
There are independent settings, commands and outputs in each restraint unit.
Phases
PROT/PHAR1 node
Settings and logical inputs. There are 6 settings tables. For details see Table 24.
There is restraint setting for each timed and instantaneous phase overcurrent unit
(No/Yes/General) and unbalanced (No/Yes)
Commands:
“DOrdBlk”: Function blocking and unblocking. Only acts when the function is
enabled.
Outputs:
2nd harmonic restraint Ix. Indicates that the restraint has been activated in
this phase. It is independent for each phase.
2nd harmonic restraint ph. Indicates that the restraint has been activated in
one of the phases.
Harm. Ph. restraint Status. Indicates the function’s status. It is active when
enabled and not blocked. This is general for all three phases.
Table 24 Phase 2nd harmonic restraint settings
Neutral
PROT/GPHAR1 node
Settings and logical inputs. There are 6 settings tables. For details see Table 27.
There is restraint setting for each timed and instantaneous neutral overcurrent
unit (No/Yes).
Commands:
“DOrdBlk”: Function blocking and unblocking. Only acts when the function is
enabled.
Outputs:Table 26shows the function’s output data.
2nd harmonic restraint In. Indicates that the neutral restraint has been
activated.
Harm. Gr. restraint Status. Indicates the function’s status. It is active when
enabled and not blocked.
Sensitive neutral
PROT/SGPHAR1 node
Settings and logical inputs. There are 6 settings tables. For details see Table 29.
There is a restraint setting for each timed and instantaneous sensitive neutral
overcurrent unit (No/Yes).
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 28 shows the function’s output data.
Second harmonic restraint Ins. Indicates that the sensitive neutral restraint
has been activated.
Harmonic Ins restraint Status. Indicates the function’s status. It is active
when enabled and not blocked.
Table 28 Sensitive neutral restraint outputs
Figure 47 shows the characteristic curve of this function. It can work as directional or
not directional (Figure 48):
When functioning in directional mode, the relay will trip when the point defined by
the measured VN and IN values falls within the characteristic zone’s trip region,
with IG registering a lag angle in the 90º ( MTA_67NA/2 interval in relation to
VG.º
When functioning as “non-directional”, the only trip condition is that of falling
within the characteristic area, irrespective of the angle.
The first trip is timed according to the corresponding parameter’s setting. The
successive trips that occur during the time programmed as “switching time” as of the
first trip are instantaneous; the first trip as of this that time is timed once again.
Zero sequence voltage (VG). The PROT/PVGE node’s VO measurement type setting indicates
the VG measurement employed:
VN TRIP ZONE
VN Amplitude
Amplitude
MTA_67NA
MTA_67NA
OPERATING
OPERATING
ZONE
VH ZONE -V0
VH
BLOCK ZONE
VL
VL
IL IH IN
IL IH IN
Directional zone amplitude (º). Indicates the amplitude of the directional trip
region.
Blocking Input. Selects the signal which, when active, blocks the function.
Time delay cancellation Input. Selects the signal which, when active, generates the
instantaneous trips regardless of the setting time.
General trip. Indicates if this unit produces general trip or not. For additional
details, see section corresponding to the recloser (5.2.1).
TripP:RL,RR,RL,R:1,2,3,4,MC. Indicates the trip and block permission in accordance
with the recloser status: standby, blocked, safety time after reclosing, after
closing. It is configured bit by bit; for additional details, see section
corresponding to the recloser (5.2.2).
Reclose perm.(R1,R2,R3,R4). Indicates whether each trip type can be reclosed or
not, in accordance with the recloser's closing cycle (5.2.3).
Enable Events record. Allows the generation of protection events associated to the
function. If set to “NO”, the function’s protection events are not generate. If set
to “YES”, the function’s specific mask is contemplated.
PROT/IGPIOC node
Settings and logical inputs. There are 6 settings tables. For details, see Table
30.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs:Table 31shows the function’s output data.
Isolated Ground Start. Indicates that the unit has picked up.
Isolated Ground Trip. Indicates that the unit has tripped.
Isolated Ground Status. Indicates the function’s status. It is active when
enabled and not blocked.
When functioning in directional mode, the relay will trip when the point defined by
the measured VN and IN values falls within the characteristic zone’s trip region,
with IN displaced at an angle in the MTA_67NC/2 interval in relation to -VN.º
When functioning as “non-directional”, the only trip condition is that of falling
within the characteristic area, irrespective of the angle.
The first trip is timed according to the corresponding parameter’s setting. The
successive trips that occur during the time programmed as “switching time” as of the
first trip are instantaneous; the first trip as of this that time is timed once again.
Zero sequence voltage (VG). The PROT/PVGE node’s VO measurement type setting indicates
the VG measurement employed:
VN
VN
OPERATING
OPERATING
ZONE Amplitude
Amplitude
MTA_67NC
VH ZONE MTA_67NC
BLOCK ZONE -V0
VH
VL TRIP ZONE
VL
IL IH IN
IL IH IN
The settings used in these functions are:
Directional zone amplitude (º). Indicates the amplitude of the directional trip
region.
Blocking Input. Selects the signal which, when active, blocks the function.
Time delay cancellation Input. Selects the signal which, when active, generates the
instantaneous trips regardless of the setting time.
General trip. Indicates if this unit produces general trip or not. For additional
details, see section corresponding to the recloser (5.2.1).
TripP:RL,RR,RL,R:1,2,3,4,MC. Indicates the trip and block permission in accordance
with the recloser status: standby, blocked, safety time after reclosing, after
closing. It is configured bit by bit; for additional details, see section
corresponding to the recloser (5.2.2).
Reclose perm.(R1,R2,R3,R4). Indicates whether each trip type can be reclosed or
not, in accordance with the recloser's closing cycle (5.2.3).
Enable Events record. Allows the generation of protection events associated to the
function. If set to “NO”, the function’s protection events are not generate. If set
to “YES”, the function’s specific mask is contemplated.
There are independent settings, commands and outputs.
PROT/CGPIOC node
Settings and logical inputs. See Table 32.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 33 shows the function’s output data.
Compensated Ground Start. Indicates that the unit has picked up.
Compensated Ground Trip. Indicates that the unit has tripped.
Compensated neutral Status. Indicates the function’s status. It is active when
enabled and not blocked.
It functions independently for timed and instantaneous and the action, the unit on which
it is to act and the value of the new settings of the phase overcurrent units can be
selected.
Settings are used to determine which unit from among the three 51 and/or the three 50
units it is to act.
It affects the settings of the instantaneous and timed units (pick up, curve type, time
index and additional time), but does not affect the enabled of the units, which does not
vary with the voltage control.
For correct operation of voltage control, it is necessary to have three voltage phases
wired.
Timed function
This function is subordinated to the phase timed function, in the sense that it makes the
phase timed operate with other settings. However, if the phase timed function is
disabled, function 51V has no effect.
It only affects the selected unit’s pick up threshold settings, with the rest of the
settings remaining unchanged.
When the control voltage is 10% of the programmed value, the controlled pick
up current is the 10% of the programmed value.
When the control voltage is 90% of the programmed value, the controlled pick
up current is the 90% of the programmed value.
Between both values, the variation of the pick up current in relation to the
control voltage is lineal.
For control voltage values higher than the 90% of the rated value, the pick up
current is the programmed value.
(51V)-Settings change (MODE 2).
When one of the phase to phase voltages is lower than the control voltage (programmed
value), function 51’s effective settings switch from those programmed in "phase timed" to
those programmed as “control by voltage”. In order to recover the “phase timed” settings,
the 3 phase to phase voltages must be greater than the control voltage.
Instantaneous function
This function is subordinated to the phase instantaneous functions, in the sense that it
makes the phase timed operate with other settings. However, if the phase instantaneous
functions are disabled, the 50V function has no effect.
When one of the phase to phase voltages is lower than the control voltage (programmed
value), function 50’s effective settings switch from those programmed in "phase
instantaneous" to those programmed as “control by voltage”.
Voltage control type: Affect the instantaneous and the timed units. If set to NO,
the function is disabled. If set to YES, it is enabled and the individual timed and
instantaneous settings are consulted.
Timed unit:
Enabled. Indicates the timed unit’s functioning mode.
NO. The timed unit is disabled.
Boost. Functions in boost by voltage mode.
Settings change. Functions in settings change mode.
51 unit to control. Indicates the unit affected.
51V Start value (A). In the change settings mode, its replace the value of the
selected timed units.
51V Operating Curve Type. In the change settings mode, its replace the value of
the selected timed units.
51V Time dial. In the change settings mode, its replace the value of the
selected timed units.
51V Operate delay time. In the change settings mode, its replace the value of
the selected timed units.
Instantaneous unit:
Enabled. Indicates the timed unit’s functioning mode.
NO. The timed unit is disabled.
Settings change. Functions in settings change mode.
50 unit to control. Indicates the unit affected.
50V Start value (A). Replaces the value of the selected instantaneous units.
50V Operate delay time. Replaces the value of the selected instantaneous units.
Enable Events record. Allows the generation of protection events associated to the
function. If set to “NO”, the function’s protection events are not generated. If
set to “YES”, the function’s specific mask is contemplated.
PROT/PVOC1 node
Settings and logical inputs. There are 6 settings tables. See Table 34.
Outputs: The function’s output data are shown in Table 35.
50 V Activation. Indicates that the instantaneous units' control by voltage is
activated.
51 V Activation. Indicates that the timed units' control by voltage is
activated.
Voltage Supervision Status. Indicates the function’s status. It is active when
enabled and not blocked. This is general for instantaneous and timed.
They differ from standard overcurrent functions by virtue of the two following
characteristics:
Phases
Node PROT/PHCL
Settings and logical inputs. There are 6 settings tables. See Table 36.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 37 shows the function’s output data
HCL X Start. Indicates that the unit has picked up. It is independent for each
phase.
HCL X Trip. Indicates that the unit has tripped. It is independent for each
phase.
General activation. Indicates that one of the unit's phases has tripped.
Enabled. Indicates the function’s status. It is active when enabled and not
blocked. This is general for all three phases.
Neutral
PROT/GPHCL nodes
Settings and logical inputs. There are 6 settings tables. See Table 36.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 38 shows the function’s output data.
HCL In Start. Indicates that the unit has picked up.
HCL In Trip. Indicates that the unit has tripped.
HCL Ground Status. Indicates the function’s status. It is active when enabled
and not blocked.
This function detects such conditions and changes the active table during a programmable
time.
If the Cold Load activation input is set, the function is activated when this logical
input is asserted. If it is not configured, the function is activated when the “open pole
detector” function detects the three poles as open. In such circumstances, it begins to
meter the programmed time to determine that the load is “cold” (this period can be 0,
meaning that the opening of a circuit breaker would lead to a cold load situation). If
the closure of the breaker is not detected following this period (“3 open poles” signal
activated), the protection’s normal values are replaced by those in table 6. When the
closure of one of the poles is detected (“3 poles open” signal denied), the metering of a
programmable time (Action time) begins, during which the settings remain the same as
those that were operative prior to the detection of the cold load.
The “open pole detector” function allows the manner in which opening of the breaker is
checked (contact + current, contact + current + voltage) to be configured.
The cold load activation time must be greater than the reclosure time. The “cold load”
function is deactivated while the unit is on “ongoing cycle”, that is to say, while the
closure control is assumed by the Reclosure function.
In Figure 52 and in Figure 53 two examples of the cold load unit are shown.
If the unit is shut down while the cold load unit is active, the breaker status is
checked on reboot during 100ms:
SETTING
Enabled
Time
INTERNAL DIGITAL SIGNAL
Cold load active 100 ms
(Memorized)
PROT/PCLO node
Settings and logical inputs. There is a settings table. For details see Table 39.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 40shows the function’s output data.
Cold Load Start. Indicates that cold load conditions have been met and that the
cold load time is being counted.
Cold Load Activation. Indicates that the unit is active (the cold load time has
elapsed).
Cold Load Reposition. Indicates that the unit is deactivated. The breaker is
closed and the action time has elapsed.
Cold Load Status. Indicates the function’s status. It is active when enabled and
not blocked.
Table 40 Cold load function outputs
The pick-up value to be set is, expressed as a decimal, and it depends on the setting
"Operation type".
There are two modes of operation, selectable by setting. The relay trips once the
programmed time has elapsed if the following conditions are met:
“Always”:
The positive sequence is greater than 3% of I rated.
The negative sequence is greater than 3% of I rated.
I2/I1 ratio exceeds the setting value.
I2/I1=(Ia+a2·Ib+a·Ic) / (Ia+a·Ib+a2·Ic) In which a=1|120º
Current value of one phase is greater than the setting "Minimum Phase I".
PROT/OPPTOC node
Settings and logical inputs. There are 6 settings tables. For details, see
Table 41.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs:Table 42shows the function’s output data.
Open Phase Start. Indicates that the unit has picked up.
Open Phase Trip. Indicates that the unit has tripped.
Open Phase Status. Indicates the function’s status. It is active when
enabled and not blocked.
This function calculates a thermal capacity in accordance with the protected unit’s
recent and current load conditions. The thermal capacity is displayed as a % of the trip
value. If the function is enabled, a warning signal is activated when the programmed
value is reached. When 100% is reached, the thermal image trip signal is activated. Once
tripped as a result, it does not drop-out while the calculated thermal capacity remains
above the reset threshold setting and the rest of the locking conditions are fulfilled.
The calculated thermal capacity can be reset by logic input or by command.
The time which elapses before the trip is determined by the following curves, which
establish the time in accordance with the ratio between the current and the programmed
rated current, and the programmed heating constant. According to the following formula
(starting from thermal capacity 0):
ζ1 : heating constant
I: measured current
Once it has tripped, there is another programmable time constant for the cooling.
t = time
As
Ti = initial thermal
capacity
t = time
Starting from Ti = 1 (100 in %), which is the thermal capacity at which the trip is
produced, the formula employed to obtain a thermal capacity of Tf = 0 (i.e., current I =
0) is as follows
Phases
Ieq2=Imax2
Where
Nodes:
Phases: PROT/PTTR
Neutral: PROT/GPTTR
Settings and logical inputs. There are 6 settings tables. For details, see Table
43.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
“DOrdIn”: Resetting to zero of thermal image value.
Outputs: Table 44 shows the function’s output data.
Thermal Image X Start. Indicates that the unit has picked up. Where X is phase
or ground.
Thermal Image X Trip. Indicates that the unit has tripped. Where X is phase or
ground.
Thermal Image X Status. Indicates the function’s status. It is active when
enabled and not blocked. Where X is phase or ground.
Figure 56 shows an example of heating curves with a 3 minute time constant for I/I0 =
1 and for I/I0 = 2
Supposing that it is heated with I/I0 =1 for 200sec, I/I0 =2 for the next 200 sec
(without tripping) and, as of that point, it returns indefinitely to I/I0 = 1 (both
with 3 minute time constants):
2. Supposing that it is heated with I/I0 =0.5 for 200sec, I/I0 =1.5 until reaching
100%, at which point the trip is produced, as of that point, it cools with I/I0 = 0
(both with 3 minute time constants):
3.2.16 Undercurrent
There are two independent undercurrent units.
They employ the phases’ fundamental measurements. The unit picks up when the current
falls below the setting and drops out when the current rises above 105% of the setting.
The pick up is generated for each phase, regardless of the operation type setting.
However, the unit’s trip takes the operation type into account.
Nodes:
Unit 1: PROT/PTUC1
Unit 2: PROT/PTUC2
Settings and logical inputs. There are 6 settings tables. For details, see Table
46.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 47 shows the function’s output data.
TUC1 phase X Start. Indicates that the unit's phase has picked up. It is
independent for each phase and does not consider the operation type setting.
TUC1 phase Start. Pick up of at least one phase. Indicates that at least one of
the unit's phases has picked up. It does not take into account the operation
type setting.
TUC1 Start. Taking into account the operation type setting, it indicates that
the unit has picked up.
TUC1 Trip. Taking into account the operation type setting, it indicates that the
unit has tripped.
Undercurrent Unit 1 Status . Indicates the function’s status. It is active when
enabled and not blocked. This is general for all three phases.
When enabled and unblocked, the undervoltage units act when the voltage is inferior to
the setting value during the programmed time. In order to reset, the voltage must exceed
the pick up value return percentage. For example, if the pick up threshold is 50V and the
reset percentage is 10%, the unit must register voltage below 50V in order to pick up and
voltage above 55V in order to reset (50+0.1 50).
The voltage unit’s general settings are available in the PROT/PVGE1 node (return
percentages and VO measurement type):
Phase overV drop out (%). Indicates the pickup setting percentage below which the
voltage must fall in order that the instantaneous and timed phased units reset.
Phase underV drop out (%). Indicates the pickup setting percentage above which the
voltage must rise in order that the instantaneous and timed phased units reset.
3V2 drop out (%). Indicates the pickup setting percentage below which the voltage
must fall in order that the instantaneous and timed V2 units reset.
3VO drop out (%). Indicates the pickup setting percentage below which the voltage
must fall in order that the instantaneous and timed VO units reset.
3VO Operating quantity. Indicates the measurement employed for the VO overvoltage:
Calculated: The 3 V0 measurement is employed, i.e., the vector sum of the 3
ground to earth phases. 3V0=Va+Vb+Vc
Measured: The measurement from the transformer configured as Vn is employed.
In which:
The timed unit can be configured with a minimum of response time, that is, a limit
that prevents any unit from tripping below a minimum time when the trip time
corresponding to the curve in use is met. This avoids timed trips which are quicker
than the instantaneous trips. It is configured with additional time setting, so that
if it set to zero, there is no such limit.
In the rest of the curve, it indicates the minimum response time. i.e., in order
for a trip to be produced, the time employed will be greater between this setting
and the time associated to the curve.
Blocking Input. Selects the signal which, when active, blocks the function.
General trip. Indicates if this unit produces general trip or not. For additional
details, see section corresponding to the recloser (5.2.1).
Trip permission. Indicates the trip and block permission in accordance with the
recloser status: standby, blocked, safety time after reclosing, after closing. It
is configured bit by bit; for additional details, see section corresponding to the
recloser (5.2.2).
Enable Events record. Allows the generation of protection events associated to the
function. If set to “NO”, the function’s protection events are not generated. If
set to “YES”, the function’s specific mask is contemplated.
Table 50 Timed voltage unit settings
In which:
The return percentage can be configured by the user in the PROT/PVGE1 node.
3.3.2.1 Instantaneous
There are 2 independent units for each of the phases.
The operation type setting allows for a selection to be made from among the following:
Each of the three units has independent settings, commands and outputs.
Nodes:
Unit 1: PROT/PIOV1
Unit 2: PROT/PIOV2
Settings and logical inputs. There are 6 settings tables. For details, see Table
49.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs:Table 51shows the function’s output data
IOV1 Start phase X. Indicates that the unit's phase has picked up. It is
independent for each phase.
IOV1 Trip phase X. Indicates that the unit's phase has tripped. It is
independent for each phase.
IOV1 Phase Status. Indicates the function’s status. It is active when enabled
and not blocked. This is general for all three phases.
IOV1 phase Start. Indicates that the unit has picked up
IOV1 phase Trip. Indicates that the unit has tripped.
3.3.2.2 Timed
There is a single timed unit, which is independent for each of the phases.
The operation type setting allows for a selection to be made from among the following:
Nodes: PROT/PTOV1
Settings and logical inputs. There are 6 settings tables. For details see Table 50.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 52 shows the function’s output data
TOV Start phase X. Indicates that the unit's phase has picked up. It is
independent for each phase.
TOV Trip phase X. Indicates that the unit's phase has tripped. It is independent
for each phase.
TOV Phase Status. Indicates the function’s status. It is active when enabled and
not blocked. This is general for all three phases.
TOV1 phase Start. Indicates that the unit has picked up
TOV1 phase Trip. Indicates that the unit has tripped.
3.3.3.1 Instantaneous
There is one unit.
PROT/GPIOV1 node
Settings and logical inputs. There are 6 settings tables. For details see Table 48
and Table 49.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs:Table 53shows the function’s output data
GIOV1 Start. Indicates that the unit has picked up.
GIOV1 Trip. Indicates that the unit has tripped.
IOV (V0) Status. Indicates the function’s status. It is active when enabled and
not blocked.
3.3.3.2 Timed
There is one timed unit.
Nodes: PROT/GPTOV1
Settings and logical inputs. There are 6 settings tables. For details see Table 49
and Table 47.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 54 shows the function’s output data.
GTOV1 Start. Indicates that the unit has picked up.
GTOV1 Trip. Indicates that the unit has tripped.
TOV (V0) Status. Indicates the function’s status. It is active when enabled and
not blocked.
3·V2=(Va+a2·Vb+a·Vc) In which=1|120º
The calculation of the sequence takes into phase succession order setting (ABC/ACB).
The return percentage can be configured by the user in the PROT/PVGE1 node.
The operation type setting is not used, as the fundamental frequency measurement is
always used.
3.3.4.1 Instantaneous
There is one unit.
PROT/UNPIOV1 node
Settings and logical inputs. There are 6 settings tables. For details see Table 48
and Table 49.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 55 shows the function’s output data.
UNIOV1 Start. Indicates that the unit has picked up.
UNIOV1 Trip. Indicates that the unit has tripped.
IOV (V2) Status. Indicates the function’s status. It is active when enabled and
not blocked.
3.3.4.2 Timed
There is one timed unit.
Nodes: PROT/UNPTOV1
Settings and logical inputs. There are 6 settings tables. For details see Table 50
and Table 48.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 56 shows the function’s output data.
UNTOV1 Start. Indicates that the unit has picked up.
UNTOV1 Trip. Indicates that the unit has tripped.
TOV (V2) Status. Indicates the function’s status. It is active when enabled and
not blocked.
The return percentage can be configured by the user in the PROT/PVGE1 node.
3.3.5.1 Instantaneous
There are 2 independent units for each of the phases.
The operation type setting allows for a selection to be made from among the following:
“Vphase-phase RMS”. . Acts with the phase-phase voltage and rms value with
harmonics
The return percentage is user-configurable (PVGE1).
Each of the three units has independent settings, commands and outputs.
Nodes:
Unit 1: PROT/PIUV1
Unit 2: PROT/PIUV2
Settings and logical inputs. There are 6 settings tables. For details see Table 49
and Table 48.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 57 shows the function’s output data.
IUV1 Start phase X. Indicates that the unit's phase has picked up. It is
independent for each phase.
IUV1 Trip phase X. Indicates that the unit's phase has tripped. It is
independent for each phase.
IUV1 Phase Status. Indicates the function’s status. It is active when enabled
and not blocked. This is general for all three phases.
IUV1 phase Start. Indicates that the unit has picked up
IUV1 phase Trip. Indicates that the unit has tripped.
3.3.5.2 Timed
There is a single timed unit, which is independent for each of the phases.
The operation type setting allows for a selection to be made from among the following:
Nodes: PROT/PTUV1
Settings and logical inputs. There are 6 settings tables. For details see Table
49and Table 47.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 58 shows the function’s output data
TUV1 Start phase X. Indicates that the unit's phase has picked up. It is
independent for each phase.
TUV1 Trip phase X. Indicates that the unit's phase has tripped. It is
independent for each phase.
TUV Phase Status. Indicates the function’s status. It is active when enabled and
not blocked. This is general for all three phases.
TUV1 phase Start. Indicates that the unit has picked up
TUV1 phase Trip. Indicates that the unit has tripped.
The frequency is measured each cycle and refreshed each half cycle, as shown in Figure 58.
Figure 58 Frequency Calculation
The algorithm is executed in the event of the phase B voltage registering zero.
Both the positive and negative registers are measured, although the frequency measurement
is carried out for complete cycles.
3.4.1 Frequency
This function is composed of 8 steps, which are programmable as maximum or minimum
frequencies. The frequency is measured on the phase B voltage.
The function’s node, PROT/PTGF1, has independent settings for each step and common
settings for all.
Minimum allowed voltage (V). Indicates the minimum phase B voltage value below
which the frequency protection does no act, the unit is not permitted to pick up.
Number of cycles (Start). Indicates the number of cycles during which the frequency
conditions necessary for the unit to pick up must be met.
Number of cycles (Reset). Indicates the number of cycles during which the drop
conditions necessary for the unit to reset must be met in the event of the unit's
not having tripped.
Overfrequency reset time (ms). Once tripped by overfrequency, this is the time
during which the reset conditions must be met in order to clear the trip from the
unit. It is applied to all the steps configured as overfrequency.
Underfrequency reset time (ms). Once tripped by underfrequency, this is the time
during which the reset conditions must be met in order to clear the trip from the
unit. It is applied to all the steps configured as underfrequency.
General trip. Indicates if this unit produces general trip or not. For additional
details, see section corresponding to the recloser (5.2.1).
Trip permission. Indicates the trip and block permission in accordance with the
recloser status: standby, blocked, safety time after reclosing, after closing. It
is configured bit by bit; for additional details, see section corresponding to the
recloser (5.2.2).
Enable Events record. Allows the generation of protection events associated to the
function. If set to “NO”, the function’s protection events are not generated. If
set to “YES”, the function’s specific mask is contemplated.
The independent settings for each of the 8 steps are:
Minimum frequency. Each step picks up when the frequency falls below the set value during
a number of cycles equal or higher than the “No. of pickup cycles” setting. Once it picks
up, the programmed time must elapse in order for a trip to be produced. If the unit has
tripped, it drops out if the frequency is correct during the underfrequency reset time.
If it has picked up but has not tripped, it drops out if the frequency is correct during
reset cycles.
Maximum frequency. Each step picks up when the frequency exceeds the set value during a
number of cycles equal or higher than the “No. of pickup cycles” setting. Once it picks
up, the programmed time must elapse in order for a trip to be produced. If the unit has
tripped, it drops out if the frequency is correct during the overfrequency reset time. If
it has picked up but has not tripped, it drops out if the frequency is correct during
reset cycles.
Nodes: PROT/PTGF1
Settings and logical inputs. There are 6 settings tables. For details see Table 59.
Commands:
“DOrdBlk”: Function block and unblocking. It only acts on the enabled steps. If
acts on the 8 steps
“DOrdFminB”. Blocking and unblocking of the steps configured as minimum
frequency. It only acts on the enabled steps.
“DOrdFmaxB”. Blocking and unblocking of the steps configured as maximum
frequency. It only acts on the enabled steps.
The function’s node, PROT/PFRC1, has independent settings for each step and common
settings for all.
Supervision f max. Indicates the maximum frequency above with the frequency
rate of change is not measured.
f start value(Hz/seg). Indicates the frequency variation value at which the
function is activated.
Operate delay time (ms). Indicates the time during which the conditions for
the tripping of the function must be met.
Trip lock. Selects the signal which, when active, locks the activation of the
function; so, once activated, the signal is kept until the lock signal and the
rate of change signal are deactivated.
Nodes: PROT/PFRC1
Settings and logical inputs. There are 6 settings tables. For details see Table 61.
Commands:
“DOrdBlk”: Function block and unblocking. It only acts on the enabled steps. If
acts on the 8 steps
Outputs: Table 62 shows the function’s output data. They are independent for each
step
ROCOF (dfdt) Status. It is active when enabled and not blocked. Common for all
steps.
Level x df/dt Start. Indicates that the step has picked up. It is independent
for each step. Where x indicates the level from 1 to 8.
Level x df/dt Trip. Indicates that the step has tripped. It is independent for
each step. Where x indicates the level from 1 to 8.
General operation.
The function is only effective for frequencies inferior to a threshold called “maximum
monitoring frequency”, currents superior to the threshold called “minimum current” and
voltages superior to the minimum monitoring threshold:
Minimum monitoring current. The maximum phase current is compared to this setting.
If the minimum current circulating in all the phases is inferior to the setting,
the frequency rate of change unit is not allowed to pick up. When a current
superior to the set threshold appears in at least one of the phases, the relay
waits for 10 cycles before running the frequency rate of change function.
Minimum monitoring voltage. If the phase B voltage is inferior to the setting, the
frequency rate of change unit is not allowed to pick up. When the voltage exceeds
the set threshold, the relay waits for 10 cycles before running the frequency rate
of change function.
The frequency is measured each cycle and reloaded every half cycle, as shown in Figure
58.
The algorithm stores the periods of the signal’s last 4 cycles and calculates the
frequency rate of change by comparing the current cycle’s frequency measurement with the
measurement taken from 4 cycles previously, taking into account the time lapse between
both (Figure 59).
df/dt =(f1-f5)/(T1+T2+T3+T4)
In which:
This calculation is repeated, taking into account the measurements separated by two
cycles in order to ensure that the frequency has fallen during the entire period, i.e.,
to ensure that an incorrect measurement does not lead to a trip. Two checks are carried
out:
the measurement of the current cycle against that of the cycle minus two cycles
df/dt2=(fn-fn-4)/(tn-tn-4)
the measurement of the cycle minus two cycles against that of the cycle minus four
cycles
df/dt3=(fn-4-fn-8)/(tn-4-tn-8)
Figure 59 Frequency rate of change calculation
For the unit to pick up, the frequency rate of change must be exceeded by an absolute
value during the set number of cycles. The pick up is only produced if the frequency rate
of change/voltage rate of change value meets the criterion selected in the operation type
setting:
Negative. The frequency rate of change/voltage rate is negative, i.e., when the
current frequency is inferior to that measured 4 cycles previously.
Positive. The frequency rate of change/voltage rate is positive, i.e., when the
current frequency is greater than that measured 4 cycles previously.
Negative and Positive. Acts on frequency rate of change/voltage rate in both
directions.
During the pickup process, one measurement is allowed to be out of the pickup range
without restarting the process. For example, if 3 cycles are required to cause a pickup,
the threshold need only be exceeded 3 times from a total of 4 consecutive measurements.
In order for a trip to occur once the unit has picked up, the frequency rate of change
measurement must remain between the set frequency rate of change/voltage rate of change
value and a reset value to the frequency rate of change/voltage rate of change minus
0.05Hz/s during the set time.
In order for the unit to reset once it has picked up, the frequency rate of
change/voltage rate of change measurement must be detected as being 0.05Hz/s below the
set value during the number of cycles programmes as reset cycles.
In order for the unit to reset once it has tripped, the frequency rate of change/voltage
rate of change measurement must be detected as being 0.05Hz/s below the set value during
the reset time. Any sealing signals that have been configured must register a value of
zero in order for the trip to be deactivated.
SETTING
Rate of change enabled
Time
MEASUREMENT
0
Vb
+
SETTING -
≥
3 semi-
Minimum monitoring V cycles
MEASUREMENT
Ia
+
-
≥
SETTING
Minimum monitoring I
INTERNAL CALCULATION
fn
SETTING +
<
Maximum monitoring f -
Time
INTERNAL CALCULATION +
35Hz -
≥ Nºcyclesx2–1/2
INTERNAL CALCULATION
fr.r.ch3/vol.r=|(fn-4-fn-8)/(tn-4 -tn-8)|+0.1Hz/s +
-
≥ Time Time Time
INTERNAL CALCULATION + 1 cycle 1 cycle Additional
fr.r.ch/vol.r.1-0.05Hz <
- time
SETTING
fr.r.ch/vol.r.1
Drop out t.
INTERNAL CALCULATION
(fn-fn-9)<0 Time
N. drop out
INTERNAL CALCULATION cycles S DIGITAL SIGNAL
(fn-fn-9)>0 R Step 1 activation
(Reset
SETTING dominat
es)
fr.r.ch/vol.r type = negative
fr.r.ch/vol.r. type = positive and negative
fr.r.ch/vol.r. type = positive
DIGITAL INPUT
Breaker for sealing fr.r.ch/vol.r.1 52a
3.5.1 General
Using the voltage and current measurements, the real and reactive powers and the power
factor are calculated. The values obtained are employed for the power protection
functions.
The trip thresholds are programmed as a percentage of the rated apparent power, S = 3 * V
* I, in which:
Real P reset threshold (%). Indicates the reset threshold for the real power units.
Reactive P reset threshold (%). Indicates the reset threshold for the reactive
power units.
Apparent P reset threshold (%). Indicates the reset threshold for the apparent
power units.
The power units’ settings are similar to each other. Each unit has independent settings:
The settings, commands and outputs available are similar in all the units, with the
exception of the node:
Provides protection against excessive decreases in the generated power. It compares the
real power with the minimum power given by the setting. In the event of the generated
power being inferior to the power established in the setting during the programmed time,
the protection trips the corresponding relay. Any reverse power will be considered as
below the minimum power threshold and will thus activate the function.
In order to reset, the power must exceed the pick up threshold plus the reset percentage.
For example, if the reset percentage is set at 2%, the unit will reset if the power
exceeds the 102% of the pick up threshold.
The settings, commands and outputs available are indicated in section 3.5.1.
In order to reset, the power must be inferior to the pick up threshold less the reset
percentage. For example, if the reset percentage is set at 2%, the unit will reset if the
power is inferior to 98% of the pick up threshold.
The settings, commands and outputs available are indicated in section 3.5.1.
Table 66 Power function outputs
The protection is activated when the real power flow is inverted (motorization of
generators).
In order to act, the real power must be negative; in the event of the real power
exceeding the set value during the programmed time, the protection trips the
corresponding relay.
In order to reset, the power must be inferior to the pick up threshold less the reset
percentage.
For example, if the threshold is set at 100W, the unit will pick up as of a measured
power of -100w. If the reset percentage is set at 2%, the unit will reset when the power
is below -98W (98% of set value).
The settings, commands and outputs available are indicated in section 3.5.1.
Table 67 Power function outputs
The protection is activated when the reactive power flow is inverted (field loss in
generators).
In order to act, the reactive power must be negative; in the event of the real power
exceeding the set value during the programmed time, the protection trips the
corresponding relay.
In order to reset, the power must be inferior to the pick up threshold less the reset
percentage.
For example, if the threshold is set at 100W, the unit will pick up as of a measured
power of -100w. If the reset percentage is set at 2%, the unit will reset when the power
is below -98W (98% of set value).
The settings, commands and outputs available are indicated in section 3.5.1.
Table 68 Power function outputs
In order to reset, the power must exceed the pick up threshold plus the reset percentage.
For example, if the reset percentage is set at 2%, the unit will reset if the power
exceeds the 102% of the pick up threshold.
The settings, commands and outputs available are indicated in section 3.5.1.
Table 69 Power function outputs
In order to reset, the power must be inferior to the pick up threshold less the reset
percentage. For example, if the reset percentage is set at 2%, the unit will reset if the
power is inferior to 98% of the pick up threshold.
The settings, commands and outputs available are indicated in section 3.5.1.
Table 70 Power function outputs
This function produces a trip when a angle variation superior to the set value is detected
within a 2 consecutive periods.
This function compares the angle of each phase with the angle present during the previous
cycle and a quarter. If it detects that the variation of the angle is greater than the
setting value, and provided that blocking input is deactivated and the voltage measured is
greater than the setting value, the function will trip.
If the “Trip Type” setting is set as three-phase, the three measurement phases detect the
angle lag difference simultaneously and the presence of sufficient voltage. To the
contrary, the trip will not take place. However, if it is set as single phase, the trip
occurs even when only one of the phases detects the angle variation.
The angle variation is measured each half cycle in accordance with the zero passages of the
voltage channels.
Each n may be a positive or negative slop, as both are considered zero passages (see Figure
61).
The trip is issued after 1.5 cycles, as the following conditions must be met first:
After an out of step trip, if (1) is met but (2) is not met, the average frequency
measurement is taken again following another 10 cycles, as a minimum of 9 cycles are
required in order to obtain a valid value. This applies if the voltage drops.
Tn Tn+2
Tn+1
Pulse
Time
> 10 cycles
5 cycles
MEASUREMENT
Va (DFT ½ cycle) + 1 cycle
-
≥
MEASUREMENT
|ΔT n-2 (Va) * 360 * faverage| +
-
≥
Pulse
MEASUREMENT >
10 cycles
|ΔT n-1 (Va) * 360 * faverage| +
≥ Pulse
- DIGITAL SIGNAL
> Minimum
Out of Step Trip
trip time
Pulse
Time
> 10 cycles
MEASUREMENT
5 cycles
Vb (DFT ½ cycle) +
-
≥
1 cycle
MEASUREMENT
|ΔT n-2 (Vb) * 360 * faverage| +
-
≥
MEASUREMENT Pulse
|ΔT n-1 (Vb) * 360 * faverage| +
-
≥ >
10 cycles
Pulse
MEASUREMENT >
Vc (DFT ½ cycle) + Time 10 cycles
-
≥
5 cycles
MEASUREMENT 1 cycle
|ΔT n-2 (Vc) * 360 * faverage| +
-
≥
MEASUREMENT
|ΔT n-1 (Vc) * 360 * faverage| +
-
≥ Pulse
>
SETTING 10 cycles
SETTING
Threshold ΔӨ = Angle diff *360*faverage
SETTING
Trip Type = SINGLE-PHASE
SETTING
Trip Type = THREE-PHASE
SETTING
Enable = YES
DIGITAL INPUT
Blocking Input
PROT/PPAM1 node
Settings and logical inputs. There are 6 settings tables. See Table 71.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 72 shows the function’s output data.
Out of Step Status. It is active when enabled and not blocked.
Out of Step Trip. Indicates that the unit has tripped.
Field loss protection (generator excitation) with the following selectable characteristics:
Zone Offset, in this case positive for zone 1 and negative for zone 2.
Zone diameter. Delimits the zone
Directional angle. Permits the blocking of the unit in a specific direction.
This unit employs the direct sequence impedance, which is calculated using the direct
sequence current and voltage. The calculations relative to impedances are based on the
condition that the direct sequence current is equal to or greater than a minimum value, set
at 0.01 In.
The unit acts differently depending on whether it is in undervoltage conditions or not. The
following conditions must be met in order for undervoltage to be considered:
The measurement in any of the voltage phases is below the undervoltage pickup
value,
When a generator enters one of these MHO zones, a timer is activated. One the time has
elapsed, the timer activates the corresponding outputs:
If the zone is not under these undervoltage conditions, the zone alarm timer is
activated.
If the zone is not under these undervoltage conditions, the zone trip timer is
activated.
The trip timer must be set to a value lower than that of the alarm, as faults must be
cleared quickly when the undervoltage conditions occur, given the limited possibilities of
the generator recovering and the consequent risk of instability in the electrical system.
Figure 63 Field loss
PROT/PLOF1 node
Settings and logical inputs. There are 6 settings tables. For details see Table 73.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 74 shows the function’s output data.
Loss of Field Status. It is active when enabled and not blocked.
For each of the two mho zones (where X is 1 or 2):
MHO X Undervoltage. Indicates that the undervoltage conditions have been
met.
MHO X Alarm. Located within the mho zone, but without the undervoltage
conditions being met. It doesn´t generate general trip nor breaker
opening command.
MHO X Trip. Located within the mho zone, with the undervoltage
conditions being met.
This function is employed to detect internal grounding faults within a zone (hence
“restricted”). It is usually used in resistance grounded Yn-D transformers in which the
current level, in the event of a failure, is insufficient to activate the phase
differential unit. It can also be used in all ground connections.
The function calculates the zero sequence differential current using the transformer’s
neutral and grounding currents. The magnitude and angle are analyzed to determine the
direction.
Sensitivity: The unit picks up if the difference between the grounding current and the
neutral current, following the application of their respective transformation ratios,
exceeds the programmed threshold. The neutral current can be obtained by the sum of phase
current or the transformer’s neutral measurement (see node PROT/TCIN):
| |
| |
Slope: The calculated zero sequence differential current must also exceed a percentage of
the maximum phase current (from the winding in question).
In Ibias, the transformation ration of the value taken as Ibias when selecting the maximum
is taken into account.
{ }
The Ibias is selected by taking into account the primary values in order to be able to
select a maximum from among all the currents.
Directional: It must indicate that the fault is internal: The grounding and the neutral
currents (the sum of the two windings following the application of their transformation
ratios) must be opposed. The minimum grounding current (IG)level must always be exceeded.
If this current does not exceed 50% of the set sensitivity, the unit is blocked. In the
event of the neutral current (IN) being below 5% of Ir, the directional is not taken into
account, as it is assumed that the failure is internal and there is no current circulating
towards the fault.
For the fault to be considered internal, the compared current must be more than 120%.
Minimum current: The minimum grounding current level must always be exceeded (polarization
IG or I). If this current does not exceed 50% of the set sensitivity, the unit is blocked.
In the event of the neutral current (IN) being below 5% of Irated, the directional is not
taken into account, as it is assumed that the failure is internal and there is no current
circulating towards the fault.
Signals: The restricted earth trip signals are issued if the directional indicates and
internal fault and the difference between both magnitudes is greater than the threshold and
the slope.
PROT/PREA1 node
Settings and logical inputs. There are 6 settings tables. For details see Table 75.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 76 shows the function’s output data.
Restricted Ground Status. It is active when enabled and not blocked.
Restricted Ground Start. Indicates that the unit has picked up.
Restricted Ground Trip. Indicates that the unit has tripped.
This unit determines an operational zone and generates a signal when the unit is within the
zone.
This unit only acts when the breaker is closed (the three phases must be closed).
Figure 64 shows the unit’s scheme, in which it is possible to see that the activation is
produced when the following are met simultaneously:
The direct sequence impedance is between impedance margins (see Figure 64).
The direct current sequence exceeds the threshold (setting).
Not meet with the following conditions:
The zero sequence must be greater than 5% of the rated current and 10% of the
highest phase current.
The inverse sequence must be greater than 5% of the rated current and 10% of the
direct sequence.
The three poles of the breaker are closed, only if the open pole detector is
enabled. In case of the open pole detector is disabled, the state of the poles can
be whatever. It is the signal "3 poles closed" of the scheme.
Although it does not directly inhibit any unit, this signal can be used to inhibit the
protection functions when it is assigned to the function’s blocking input.
PROT/PLEC1 node
Settings and logical inputs. There are 6 settings tables. For details see Table 77.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 78 shows the function’s output data.
Load Area. Indicates that the unit is active.
Load Encroachment Status. Indicates the function’s status. It is active when
enabled and not blocked.
INTERNAL MEASUREMENT
V1
INTERNAL MEASUREMENT LOAD - LOAD +
I1
SETTING ≥
Threshold I1
INTERNAL CALCULATION
|I0|>0.05·In DIGITAL SIGNAL
|I0|>0.1·Ifase max LOAD ENCROACHMENT STATUS
|I2|>0.05·In
|I2|>0.1·I1
DIGITAL SIGNAL
52 3 CLOSED POLES
The measurement obtained from the half-cycle DFT is used to obtain results before the
protection units are activated.
VFF VN 80% ( V)
If the function detects all the above conditions, or if the “fuse failure” input is
activated, a fuse failure pick up signal is produced and used to block the units in
question (configurable).
These conditions must be met during a programmable time in order for the fuse failure trip
to be activated. Once tripped, the fuse fault is maintained until the V1 voltage rises
above VFF.
If any of the overcurrent functions (phase, ground, sensitive ground, earth system and
unbalance) have picked up or if during the timeout the relay picks up at least one of these
units, the fuse fault output is not activated as the situation is considered a fault, not a
fuse failure.
The fuse failure pick up and trip are also activated when the digital “Fuse Failure” input
is activated independently of the programmed time. The fuse failure is only deactivated
when the input is deactivated.
If the "B side fuse failure” input is activated, the synchrocheck unit is deactivated.
The fuse failure pick up can be used as a blocking signal for other functions by means of
each function’s logic signals.
The overcurrent units have settings that configure their functioning in the event of a fuse
failure, allowing the enabled of the function, the inhibition of directional, etc.
SETTING
Enabling FF=YES
DIGITAL INPUT
FF block
DIGITAL SIGNAL
OPEN POLE (1 or 2)
DIGITAL SIGNAL
3 OPEN POLES DIGITAL SIGNAL
FUSE FAILURE STATUS
DIGITAL SIGNAL
Picked up units I
DIGITAL SIGNAL
Fault detector active
INTERNAL CALCULATION
V1(n-1)>80%·Vn
INTERNAL CALCULATION
V1>80%·Vn
DIGITAL INPUT
Fuse fail input DIGITAL SIGNAL
FUSE FAILURE B1
Fuse fail input (b-side sinc1)
ACTIVATION
Fuse fail input (b-side sinc2) FUSE FAILURE B2
ACTIVATION
PROT/RFUF1 node
Settings and logical inputs. There are 6 settings tables. For details see Table 79.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 80 shows the function’s output data.
Fuse Failure Start. Indicates that the fuse failure has picked up.
Fuse Failure Trip. Indicates that the fuse failure has tripped, that is, the
additional time has elapsed with the unit picked up.
This unit provides an instantaneous three-phase trip when a fault occurs upon the
generation of a breaker closure command (manual or by input).
The function is enabled during a programmable time (TSOTF) in the following situations:
Programmed as "V&I": The phase voltage is below a threshold and the phase current
is above a threshold for 10ms.
Programmed as "programmable pick up I": The Programmable SOTF Pick up input is
activated.
DIGITAL INPUT
SOTF block
SETTING
Enabled=NO
Operation type= V&I
Operation type =
PROGRAMMABLE
DIGITAL INPUT
SOTF PICK UP
DIGITAL SIGNAL
Fuse failure
INTERNAL MEASUREMENT
VA +
-
<
Time
INTERNAL MEASUREMENT ½ cycle
VB +
-
<
INTERNAL MEASUREMENT 0
VC
SETTING +
VMIM OPEN POLE -
<
INTERNAL MEASUREMENT
IA +
-
≥
INTERNAL MEASUREMENT
IB +
-
≥ Time
100 ms.
INTERNAL MEASUREMENT
IC
0
SETTING +
I phase SOTF -
≥ DIGITAL SIGNAL
DIGITAL SIGNAL
Switch onto Fault Status
DIGITAL SIGNAL
52_1 CLOSURE COMMAND
(MANUAL)
DIGITAL SIGNAL
52_1 BREAKER CLOSED
(WITHOUT RECLOSURE
COMMNAD)
SOTF T
DIGITAL SIGNAL
52_2 BREAKER CLOSED
(WITHOUT RECLOSURE
COMMAND)
SETTING
DIGITAL INPUT
RESET
SETTING Time
Operation start type
DIGITAL SIGNAL 200ms
DEENERGIZED LINE IN PHASES
A, B AND C SOTF T
SETTING
General trip
Normalized voltage reset. Indicates if resetting due to voltage above the threshold
is enabled or not.
Phase Current threshold (A). Indicates the current value for indicating a switch
onto fault.
Activation time (s). Indicates the time during which the unit is enabled once the
start conditions have been met.
Blocking Input. Selects the signal which, when active, blocks the function.
Timed Init Input. Selects the signal which, when active, indicates the start of the
enabled of the unit. It only functions if the start type is set to “programmable”.
Start input. Selects the signal which, when active, indicates the activation of the
switch onto fault. It only functions if the operation type is set to
“programmable”.
Enable Events record. Allows the generation of protection events associated to the
function. If set to “NO”, the function’s protection events are not generated. If
set to “YES”, the function’s specific mask is contemplated.
The voltage threshold set in the open pole detector is employed.
Table 81 Switch onto fault settings
PROT/PSOF1 node
Settings and logical inputs. There are 6 settings tables. For details see Table 81.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 82 shows the function’s output data.
Switch onto Fault Activation. Indicates that the switch onto fault has been
activated.
Switch onto Fault Status. Indicates the function’s status. It is active when
enabled and not blocked.
Table 82 Switch onto fault function outputs
This unit does not contemplate the breaker status digital input, but rather the current
values. The measurement obtained from the half-cycle DFT of the full-cycle DFT is
employed (the lesser of the two).
Retrip time delay (ms). Indicates the waiting time for the activation of the retrip
signal if the current does not drop below the reset level.
Trip time delay (ms). Indicates the waiting time for the activation of the trip
signal if the current does not drop below the reset level.
Blocking Input. Selects the signal which, when active, blocks the function.
3 pole BF start. Selects the signal which, when active, indicates the start of the
breaker failure timed.
Enable Events record. Allows the generation of protection events associated to the
function. If set to “NO”, the function’s protection events are not generated. If
set to “YES”, the function’s specific mask is contemplated.
Table 83 Breaker failure settings
PROT/RBRF1 node
Setting and logical inputs. There are 6 settings tables. For details see Table 83.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts when the function is
enabled.
Outputs: Table 84 shows the function’s output data.
50BF Trip . Indicates that a trip has been produced as a result of a phase or
neutral breaker failure.
50BF Retrip . Indicates that a retrip has been produced as a result of a phase
or neutral breaker failure.
Breaker Failure Status. Indicates the function’s status. It is active when
enabled and not blocked.
device is equipped with a remote protection system for completely protecting the line
with high-speed protections.
They are based upon the use of remote protection signals between both end terminals of
the line. The effect upon the output relays’ operation is determined according to the
signals given by the protection along with the signals given by the other terminal.
3.13.1.1 Introduction
3.13.1.1.1 Fault Detection Units
67NQ schemes are affected on the instantaneous directional unit No. 1 (forward), 2
(forward) and 3 (backwards).Zone 1 (forward): Unit 1 with instantaneous, unbalanced
and neutral overcurrent (UNPIOC1 and GPIOC1).
Zone 2 (forward): Unit 2 with instantaneous, unbalanced and neutral overcurrent
(UNPIOC2 and GPIOC2).
Zone 4 (backwards): Unit 3 with instantaneous, unbalanced and neutral overcurrent
(UNPIOC2 and GPIOC3).
Therefore, unit 1 can be assimilated to zone 1, unit 2 to zone 2, and unit 3 to zone 3.
Unit 3 must be programmed backwards.
Blocking schemes: The signal received indicates that the fault occurs outside the
zone to be protected. A relay can trip on an overreach zone if, after a definite
time, the blocking signal has not been received.
Permission schemes: The signal received allows an instantaneous trip in the
overreach zone. The additional ECHO, weak infeed and Current Reversal
Blockingschemes can be used.
When selecting a particular scheme, it is useful to bear in mind the following
characteristics for each of them: In the case of an internal fault in the protected line
and a communication channel fault in permissive schemes, protection is disabled for
tripping, whilst in blocking schemes, tripping is assured. However, in blocking schemes,
if there is an external fault and a communication channel fault, the device can trip
If the communication system forms an integral part of the energy transport line, as in
the case of carrier waves, it is best to use Current Reversal Blockingscheme, since
internal faults may disturb or attenuate the carrier signal. Likewise, it is best to use
blocking schemes in weak infeed configurations as they are more reliable compared to
permissive schemes.
Finally, it should be mentioned that permissive schemes are faster than blocking schemes,
given that the latter involve slightly longer fault clear times, due to the security
waiting time for receiving the potential blocking signal.
The following logic inputs are configurable using flexible inputs. It is possible to
connect any logic input to them:
GSLRx_67NQ Line security signal loss. Indicates that the data channel established
between the two remote protection devices is inactive.
Permissive Schemes
Blocking Schemes
Scheme type: Selects the type of scheme. Allows you to select between:
Step Trip (0)
Overreaching POTT(1)
Underreaching PUTT(2)
Direct.comp. block(3)
Direct.comp. unbl.(4)
TPRx Drop out time (ms). The time during which the remote protection receipt input
is memorised (TPRx).
Block delay time (ms). Blocking time (ms). Additional blocking signal timeout.
GSL Minimum time (ms). Minimum security signal loss time to permit trips.
GSL Maximum time(ms). Maximum time during which the trip permission for loss of
security signal is enabled.
GSL Drop out time(ms). Drop out time following the recovery of the security
channel.
ECHO enabled. Enables the ECHO function.
ECHO pulse time(ms). The time during which the conditions for the activation of the
ECHO signal must be met.
ECHO Blocking time(ms). Time after the deactivation of signal 67NQ_FW during which
it is considered as being active.
ECHO delay time(ms). The duration of the ECHO output signal pulse.
Current Reversal Blocking. Enables trip blocking for a time after seeing a change
in the fault's direction. (Reversal direction memorisation).
Current rev pickup t. (ms). Reversal direction memorization time.
Weak Infeed Enabled. Enables the weak infeed function.
Weak infeed threshold (V). Threshold for the consideration of weak infeed.
TPRx_67 line 1. Selects the signal which, when active, indicates the receipt of the
line 1's remote protection.
TPRx_67 line 2. Selects the signal which, when active, indicates the receipt of the
line 2's remote protection.
GSLRx_67 line 1. Selects the signal which, when active, indicates the receipt of
the line 1 security signal loss signal.
GSLRx_67 line 2. Selects the signal which, when active, indicates the receipt of
the line 2 security signal loss signal.
TP Trip Block. Selects the signal which, when active, blocks the remote protection
trip.
TPTx Blocking input. Selects the signal which, when active, indicates the blocking
of the TPTX signal transmission.
Figure 71. TPTx Block Scheme
ECHO Start value. Selects the signal which, when active, indicates ECHO startup for
remote protection schemes.
Block ECHO. Selects the signal which, when active, indicates ECHO blocking for
remote protection schemes.
67NQ Permissive Units. Permits the selection of an alternative startup signal for
unit 2: selects the signal which when active, indicates the activation of the 67Q
startup signal used in permissive units. If this signal is configured, 67NQ
functions are not taken into consideration.
67NQ Block Units. Permits the selection of an alternative startup signal for unit
backwards: selects the signal which when active, indicates the activation of the
67NQ startup signal used in blocking units. If this signal is configured, 67NQ
functions are not taken into consideration.
Weak Infeed Blocking. Selects the signal which, when active, indicates the blocking
of the weak infeed scheme.
General trip. Indicates if this unit produces general trip or not. For additional
details, see the section corresponding to the recloser(3.13.3).
Trip permission by recloser. Indicates the trip and block permission in accordance
with the recloser status: standby, blocked, safety time after reclosing, after
closing. It is configured bit by bit; for additional details, see section
corresponding to the recloser (3.13.4).
Reclose permission. Indicates whether each trip type can be reclosed or not, in
accordance with the recloser's closing cycle (see reclosure permission mask).
Enable Events record. Allows the generation of protection events associated to the
function. If set to “NO”, the function’s protection events are not generated. If
set to “YES”, the function’s specific mask is contemplated.
Node PROT/OCPSCH1
Settings and logical inputs. There are 6 settings tables. For details seeTable 85.
There are no associated commands.
Outputs: Table 86 shows the function's output data:
TPRx 67NQ L1. Line 1 remote protection receipt. Indicates that the line 1 remote
protection signal has been received.
TPRx 67NQ L2. Line 2 remote protection receipt. Indicates that the line 2 remote
protection signal has been received.
GSR 67NQ L1. Line 1 security signal loss reception. Indicates that the line 1
security signal loss has been received.
GSR 67NQ L2. Line 2 security signal loss reception. Indicates that the line 2
security signal loss has been received.
TPTx 67NQ. Dispatch of remote protection. Indicates that the transmission of the
remote protection signal has been activated.
ECHO 67NQ. Dispatch of ECHO. Indicates that the dispatch of the ECHO signal has
been activated.
STOP 67NQ. Activating of stop signal. The directional blocking scheme indicates
that there is a fault but that it is not backwards. It is used to indicate that
TPTxis not being sent.
WI 67NQ Trip. Weak infeed trip. Indicates that the weak infeed conditions have
been met during the configured time. There are independent signals for each
phase and a general signal for certain phases.
Teleprotection 67NQ Trip. Remote protection trip. Indicates that a remote
protection trip has been produced.
Weak infeed phase 67NQ. Indicates that the weak infeed conditions have been met
in at least one phase.
Permissive 67NQ Activation. Indicates that the permissive units have been
activated.
Block Inverted Current 67NQ. Indicates that current inversion block has been
activated.
Memory Inverted Current 67NQ: Current inversion block memorized. Indicates that
current inversion block memorization has been activated.
67NQ SGL end permission L1. End of permission due to security signal loss in
line 1.
67NQ SGL end permission L2. End of permission due to security signal loss in
line 2.
Teleprotection 67NQ status. Indicates whether or not the remote protection
function is enabled. If the "Scheme type" setting is selected as "Step Trip", it
means that remote protection is disabled. Any other option means that it is
enabled.
ECHO 67NQ Status. Indicates whether or not the ECHO function is enabled.
Weak infeed 67NQ status. Indicates whether or not the weak infeed function is
enabled.
This scheme is based on the idea that at least one of the protection devices at one
end of the line will see the fault in zone 1. If a terminal sees the fault in zone 1
and the other one sees it in zone 2, the fault can be considered as being inside the
line between both devices, in the section of the line close to the terminal which sees
it in zone 1.
The terminal that sees the fault in zone 1, besides setting off an instantaneous trip,
send the trip permission signal (TPTx) to the other end while zone 1 is activated. The
terminal which detects the fault in zone 2 generates an instantaneous trip with the
receipt of the remote protection signal (TPRIx) together with the activation of a unit
in zone 2 as long as zone 4 is not activated.
Figure 72. Permissive Underreach Logic Diagram
Figure 72 shows the permissive underreach protection scheme. This scheme is used to
analyse how the protection devices will act in the event of three faults: F1, F2 and
F3:
Fault F1: Protection A sees the fault in zone 1, causing an instantaneous trip and
sending a permission signal to protection B. Protection B sees the fault in zone 2
and will set off a high-speed trip when it sees the fault in zone 2 and will
receive protection A's permission command.
Fault F2: The two protection devices see the fault in zone 1, causing a high-speed
trip. Furthermore, redundant commands are given by the communication channels.
Fault F3: None of the protection devices will set off a fast trip. Protection A
sees the fault in zone 2 but B does not see the fault in the line to protect, not
sending the permission signal to protection A. Hence, A's action in zone 2 will
take place in zone 2 time.
Inverse direction block: signal "Memory Inverted Current" can be eliminated from the
logic by disabling this function. In this case, "Memory Inverted Current" would be set
permanently to 0.
In lines with more than two terminals, to apply this scheme, checks must be made to
ensure that in the event on any fault in any point in the line, at least the
protection of one of the ends is detect in zone 1.
Figure 74 shows the permissive overreach protection scheme. This scheme is used to
analyse how the protection devices will act in the event of three faults: F1, F2 and
F3:
Fault F1: Protection A sees the fault in zone 1(PIOC1 or GPIOC1), causing an
instantaneous trip and sending a permission signal to protection B, given that it
sees the fault in zone 2 (PIOC2 or GPIOC2) (zone 2 includes zone 1). Protection B
sets off a high-speed trip when it sees the fault in zone 2 and receives a
permission order from protection A. Protection B will also sent a permission signal
to protection A but it has already instantaneously tripped in zone 1.
Fault F2: The two protection devices see the fault in zone 1, causing a high-speed
trip. Furthermore, redundant commands are given by the communication channels.
Fault F3: Protection A sees the fault in zone 2 and sends the permission signal to
B, which sees the fault backwards. When A does not receive the permission signal
from B, zone 2's action will take place in zone 2 time. Protection B receives the
permission signal from A, but when it sees the fault backwards, it will not trip.
Any fault in unit 3 (PIOC3 or GPIOC3) it will normally be eliminated in zone 3 time.
Following the elapse of the "GSL Maximum time (ms)" the, security channel loss signal
will cease to have an effect on the remote protection trip.
Once the security signal has been recovered, a "GSL Drop out time (ms)" (LoGRepTmms)
repositioning time must elapse before restarting the previous logic in the event of
the security channel being lost once more.
An instantaneously trip will by caused by remote protection trip with the activation
of unit 2 if the unblock signal (TPRx) is received or if the communication channel
(GSLRx) is lost, the channel loss signal (GSLRx) channel lost signal will only be
received during the security signal loss time (LoGMinTmms).
As of the activation of the security channel loss signal, a "Maximum time SGL(ms)"
window is opened. During this period, a trip may be produced if the GSLRxsignal
remains active during the set time (LoGMinTmms) without the reception of TPRx.
Following the elapse of the SGL(LoGMaxTmms) time, the security channel loss signal
will cease to have an effect on the remote protection trip. It is therefore imperative
that LoGMinTmms time be programmed with a value inferior to the "Maximum time SGL
(ms)" (LoGMaxTmms) in order that the loss of the security signal activates the trip.
Once the security signal has been recovered, "Reposition time SGL(ms)"(LoGRepTmms)
must elapse before restarting the previous logic in the event of the security channel
being lost once more.
The figures show the directional unblocking protection scheme. This scheme is used to
analyse how the protection devices will act in the event of three faults: F1, F2 and
F3:
N.B.: The signals received in GSLRx and TPRx directional blocking can only be received
with values (active, active), (active, inactive) or (inactive, inactive). They can
never be (inactive, active) because the transmiter/receiver that sends the signals,
when there is communication and receives TPR gives the signals SGR and TPR and when
there is no communication, gives SGR but not TPR.
Analysis is made of how the protection devices will act in the event of three faults:
F1, F2 and F3:
Fault F1: Protection A sees the fault in zone 1, causing an instantaneous trip and
changing the security signal to an unblocking signal given that it sees the fault
in zone 2 (zone 2 encompasses zone 1). Protection B sees the fault in zone 2 and
when it receives the unblocking signal from A, it will speed up the trip. If the
security channel is lost, when protection B's zone 2 is activated, it will speed up
its trip if it receives the channel loss signal for the time programmed for
"security signal loss".
Fault F2: The two protection devices see the fault in zone 1, causing a high-speed
trip.
Fault F3: Protection A sees the fault in zone 2 but does not speed up its trip
given that protection B sees the fault in zone 4 and therefore will not change the
security signal for an unblocking signal.
The TPTx blocking signal is sent if a reverse fault is detected (Memory Inverted
Current).
The TPTx stops being sent when the "TPTx Blocking input" is activated.
The “TP Trip Block” input blocks the "Teleprotection Trip 67NQ" output signal.
In order to add functions to the overreach or blocking units, the “67NQ permissive
units" and/or "67NQ blocking units" can be programmed and logic can be sent to the
corresponding logic signal with the startups of the desired units.
This scheme is based on providing the distance protection with a reverse unit and
sending a blocking signal to the other end if this unit acts. In this way, a fast trip
is caused by unit 1 if PIOC1 or GPIOC1 are activated, a blocking command is not
received (signal TPRIx) once blocking time (BlkTmms) has elapsed and the fault in unit
3 is not seen (PIOC3 o GPIOC3) (Memory Inverted Current).
The blocking time is an additional delay time to give time for the blocking signal to
be received and is programmable by the user. The transmission time must be as low as
possible with the aim of reducing this delay to a minimum.
A stop channel signal (STOP 67NQ) is detected if a forward fault is detected (unit 1
or unit 2) without the detection of a fault in unit 3 (Memory Inverted Current).
The Figure 79 shows the directional blocking protection scheme. This scheme is used to
analyse how the protection devices will act in the event of three faults: F1, F2 and
F3:
Fault F1: Protection A detects the fault in zone 1 causing an instantaneous trip.
Protection B detects the fault in zone 2 and once the blocking time has elapsed, a
trip will be caused given that a blocking command is not received from A since A
does not detect the fault in zone 4.
Fault F2: The two protection devices see the fault in zone 1, causing a high-speed
trip.
Fault F3: Protection A detects the fault in zone 2 but does not cause a fast trip
given that protection B sees the fault in zone 4 and will therefore send a blocking
signal to A.
Care must be taken with the coordination of the blocking unit forward (for example,
B's zone 4) of each end with the overreaching unit of the other end (A's zone 4),
these being adjusted so that the reach of the reverse unit is always greater than the
underreach's.
This scheme has the advantage of not being sensitive to noise in the communication
channel and has the disadvantage of possibly causing untimely trips if the
communication channel is lost.
The blocking scheme is usually used in long lines when the remote protection signal is
transmitted via the line protected by the carried wave and the diminishing of the
signal transmitted at the point of fault can be so severe that receipt at the other
end of the line cannot always be ensured.
3.13.1.6 ECHO
It is used together with overreach permissive schemes by acting on the remote
protection (TPTx) signal.
The ECHO 67NQ signal only provides a programmable pulse. The ECHO function sends the
remote protection (TPTx) signal with any of the following conditions:
It is used together wish overreaching permissive schemes in cases in which one end of
the line is not fed (Figure 83 end B) or is weakly fed (Figure 84 end B). In the event
of a fault on the line near the weakly-fed or unfed end, the distance unit of this end
of the line does not detect the fault. Hence, the trip will not be caused, nor will
the permission signal be sent to the other end of the line. Hence, since the
permission signal will not be received, the strongly-fed end of the line will not
speed up its trip.
To speed up the trip at the strongly-fed end in the event of a fault at the opposite
end, the Echo function returns the TPRIx signal received to the remote terminal if it
does not detect a fault forward or backwards, or if the circuit breaker is open.
The resending of the TPRIx received (ECHO 67NQ) will be instantaneous if the circuit
breaker is open and will suffer a delay (EcActTmms) if there is a weak power supply.
This delay makes it possible to cover situations in which there is a higher fault
ECHO 67NQ is a pulse during time EcTmms, which is normally set at approximately 50 ms,
thus assuring that the signal received is even recognised with different action times
of the protection equipment at ends of the lines and with different response times of
the transmission equipment.
Figure 83. Protection in the Echo Logic, with Circuit breaker in B Open
Figure 83 shows Echo Logic Sample, with Circuit breaker in B Open This scheme will be
used to analyse how the protection devices act in the event of faults F1 and F2 with
the basic permissive overreach scheme.
Fault F1: Protection A detects the fault in its zone 1 and hence instantaneously
trips and sends a permission signal to B. End B is open so the fault is cleared.
Fault F2: Protection A detects the fault in zone 2 and sends a permission signal to
B. When the protection device in B detects that the circuit breaker is open, it
will resend the permission signal to protection A without delay. When protection A
detects the fault in zone 2 and having received the permission signal, it will
speed up its trip.
Figure 84 shows the eco logic, and Weak infeed. This scheme will be used to analyse
how the protection devices act in the event of faults F1 and F2 with the basic
permissive overreach scheme.
Fault F1: Protection A detects the fault in unit 1 and will hence trip
instantaneously and send a permission signal to B. The protection in B, being
weakly fed, will not detect the fault, but as it receives the permission signal, it
will send back to A with the programmed delay, but A will be open. The circuit
breaker at end B will remain closed.
Fault F2: Protection A detects the fault in unit 2 and sends a permission signal to
B. The protection in B, being weakly fed, will not detect the fault, but as it
receives the permission signal, it will send back to A with the programmed delay.
When protection A sees the fault in unit 2 and has received the permission signal,
it will speed up its trip. The circuit breaker at end B will remain closed.
The undervoltage unit associated to the weak infeed function has its own settings and
is not dependent on the undervoltage units.
If an unblocking scheme is used, the TPRIx signal is replaced by TPRIx & SGL.
If one end of the line is weakly fed (Figure 84 end B) with the echo logic, as seen in
the previous section, the trip at the strongly fed end is accelerated. However, the
weakly fed end remains closed. This logic permits the opening of this end of the line.
To detect the fault at the weak end, the following conditions must be fulfilled:
TPRIx signal received (it will be sent tot eh strongly-fed end, as described in the
ECHO function).
The circuit breaker is closed
Undervoltage is detected in one of the phases (as a consequence of the fault). The
settings recommended are 70%Vn for the voltage.
Figure 85. Protection in the Weakly Fed Logic, with End B Weakly Fed
Figure 85 shows the weakly-fed logic, with end B weakly fed. This scheme will be used
to analyse how the protection devices act in the event of F1 faults with the basic
permissive overreach scheme.
Fault F1: Protection A detects the fault in unit 2 and sends a permission signal to
B. The protection in B, being weakly fed, will not detect the fault and when it
recieves the permission signal, it will send it to A with the setting time. When
protection A sees the fault in unit 2 and has received the permission signal, it
will speed up its trip. When protection B detects the fulfilment of the ECHO
conditions and detects undervoltage (due to the existence of the fault), it will
give the trip command.
It is used in double circuit lines to prevent trips due to the change in the current
flow which is caused when the circuit breaker is opened at one end of the faulty line
when this fault is cleared. The reversal of the current implies the reversal of the
protection device's directional elements, as well as the increase in the apparent
distance to the fault. The time between the repositioning of the distance elements and
the functioning of the unit may give rise to a trip in the healthy parallel line.
When the scheme is blocking type, it keeps the blocking signal for a set time "Block
delay time(ms)", the trip blocking for a time after detecting a change in the fault's
direction. When the scheme is permissive, it blocks the trip and the emission of the
permission for a set time after changing the direction in which it detects the fault
(backwards to forward).
The overcurrent unit 2 signal is used with a memorization time "Current Reversal
Blocking(ms)" (RvATmms), which enables the "Memory Inverted Current"signal to be
employed in the rest of the schemes.
The following figures show the change in the current flow when the fault occurs and
when circuit breaker K is opened to clear this fault:
When faults F occurs as can be seen in Figure 86.1, protection K will detect the
fault in zone 1, J will either detect it in 1 or 2 and H backwards. In this
situation, K instantaneously opens the circuit breaker and sends the permission
signal to J and likewise, G sends the permission signal to H.
When K opens, the current's flow is inverted as can be seen in Figure 86.2. In this
new situation, G will detect the fault backwards and H will detect it in zone 2 or
3. These conversions are not simultaneous or instantaneous. Hence, H could trip
before G removes the permission signal. To prevent this trip, the remote protection
trip is delayed for a number of cycles, to give the remote terminal time to remove
the permission signal.
Figure 86. Change in the Current Flow When the Fault Occurs in a Double Circuit Line
When the fault occurs as can be seen in Figure 85, protection K will detect the
fault in zone 1, J will either detect it in 1 or 2 and H backwards. When H detects
the fault in its zone 4, it sends a blocking signal to G (or it does not send the
TPRIx signal, which is the same), preventing tripping due to acceleration in zone
2.
When K opens, the current's flow is inverted as can be seen in Figure 86.2. In this
new situation, G will detect the fault backwards and H will detect it in zone 2 or
3, due to the increase in the fault's apparent distance. H would trip before
receiving the blocking signal from G. To prevent this, H will continue to detect
the fault backwards for a period of time, allowing time to receive the blocking
signal.
Additional blocking time = operating time of the circuit breaker at the other end of
the line (typically 3 cycles) + the reset time of the communication channel (1 cycle)
+ the reset time of zone 2 of the relay at the other end of the line (1 cycle) = 5
cycles.
Any digital signal can be used as an output signal for signalling a direct trip to the
other extreme, either via the programming of the digital outputs or via the
programmable logics.
A particular feature of the scheme is the direct underreach trip, in which the input
signals are generic but unit 1's signals zone used as the output signals.
Reclose permission. Indicates whether each trip type can be reclosed or not, in
accordance with the recloser's closing cycle (see reclosure permission mask).
Table 88. Direct Trip Settings
PROT/PDTS1 node
Settings and logical inputs. There are 6 settings tables. For details see Table 88.
There are no associated commands.
Outputs: Table 89 shows the function's output data:
Direct Trip Signal ABC. Indicates that the pole ABC direct trip signal has been
received.
Used as transmitter, the device sends the signals programmed in the communication node
(ITPC).
Used as receiver, the device has all the received signals, in the positions
“Teleprotection signal 1”, “Teleprotection signal 2”, up to “Teleprotection signal
16”. All these signals can be used in the teleprotection schemes.
For example, the signal “ETP 67NQ” can be assigned to the “Digital 1” setting of the
ITCP node. The status of “ETP 67NQ” is sent in the first position of the 16
transmitted signals.
The other device receives this signal as “Teleprotection signal 1”, that can be used
as the receipt of the remote protection signal. This setting is the logical input
“TPRx_21 line 1”.
Port Number. When the port exists in the device, the options are:
Disabled. The communication is disabled.
COM 1. The communication is enabled in the port COM1.
COM 2. The communication is enabled in the port COM2.
Comm speed (bauds). It refers to communication speed in the selected port. The
options are between 19200 and 115200 bauds.
Parity: It refers to an addcitional bit used in each character to detect
transmission errors. It is selected among "None", "Even" and "Odd".
Number of Stop bits: Number of bits sent at the end of each character.
Digital 1: It refers to the signal sent in the first position of the message. It
can be selected among all the available digital signals of the device. It is the
“Teleprotection signal 1” in the receiver device.
Digital x: where x is from 1 to 16. It refers to the signal sent in the “x”
position of the message. It can be selected among all the available digital signals
of the device. It is the “Teleprotection signal x” in the receiver device.
Node PROT/ITPC1
Settings. There is a setting grouop. See Table 90.
It has no logical input.
It has no command
Outputs: Table 91 shows the function’s output data:
Teleprotection comms failure: It indicates there is a communicaction failure
Teleprot comms config alarm: It indicates a failure in the selection of the
communication port. It is activated when the selected port doesn´t exist or it´s
occupied.
Teleprotection signal 1: It refers to the signal received in the first position
of the communication message.
Teleprotection signal x: where x is from 2 to 16. It refers to the signal
received in the position x of the communication message.
If a trip is produced at the same time as another trip which activates the general
trip, all the trips are reflected in the fault report: those which go to GT and those
which do not.
The picks ups are affected in the same way as with each unit's trips. Each of the
relay’s pick ups generates a signal. This signal passes through the trip mask filter
and is included in an OR in order to generate a "General pick up" signal.
DIGITAL SIGNAL
79 in service
DIGITAL INPUT
51-1 Trip
AJ 51-1 -> D.G.
DIGITAL INPUT
General trip
DIGITAL INPUT
51-2 Trip
AJ 51-2->D.G.
………………………….
DIGITAL INPUT
Unit X Trip
AJ X->D.G.
This mask is used to select which trips are associated to the “general trip” (with the
recloser in service), depending on the status of the recloser.
Independently of these settings, the protection units pick up and trip, activating their
corresponding signals.
The unit that is to produce the trip (activate the general trip signal) can be selected
by programming 4 trip masks peer unit and which are active in the following moments:
Each protection unit has independent masks. If a unit trips during a specific recloser
status (blocked, in security t, etc.) and the corresponding mask is set to “YES”, the
trip is sent to the general trip output. If the mask is set to “NO”, the trip is produced
but the "direct trip" signal is not received.
Each protection unit has an independent setting which is used to enable or disable the
unit’s permissions. The reference is “TripPerm”. The setting is configured as a bit field
where each bit corresponds to a selection, indicating the integer value:
An example of use with trip permissions in standby and following reclosures would be the
decimal value 122 (01111010 in binary), broken down into:
Bit 7 6 5 4 3 2 1 0
Value 0 1 1 1 1 0 1 0
The maximum permitted value with all permissions enabled is 255 (11111111 in binary).
Table 92. Trip permission after reclosing (each protection node)
The settings for the configuration of this unit are shown in Table 93.
External trip - 3 pole. Selects the signal which, when active, indicates that there
is an external three-pole trip.
General trip. Indicates if this unit produces general trip or not. For additional
details, see the section corresponding to the recloser (3.13.3).
Reclose permission. Indicates whether each trip type can be reclosed or not, in
accordance with the recloser's closing cycle (see reclosure permission mask).
Enable Events record. Allows the generation of protection events associated to the
function. If set to “NO”, the function’s protection events are not generate. If set
to “YES”, the function’s specific mask is contemplated.
This unit's settings and outputs are in the PROT/ZPEXT1 logical node:
Settings and logical inputs. There are 6 settings tables. For details, see Table 93
Outputs: Table 93 shows the function’s output data.
External trip pole A. Indicates the activation of an external A pole trip.
External trip pole B. Indicates the activation of an external B pole trip.
External trip pole C. Indicates the activation of an external C pole trip.
External trip 3 pole. Indicates the activation of an external three-pole
trip.
External trip 1 pole. Indicates the activation of an external single-pole
trip.
3.14 CT MONITORING
If the event of neutral current in the 4th transformer, a fault may be detected in at least
one of the relay input channels (adaptation transformer + internal circuitry). The absolute
value of three times the zero sequence current (calculated using the phase currents) is
compared with the current measured at the transformer, taking the phase (RTF) and neutral
(RTN) transformation ratios into account. None of the phases must exceed 1.5 times the
rated current.
The unit activates a “CT monitoring alarm signal” when the following conditions are met.
The settings for the configuration of the current transformer monitoring are shown in Table
95.
PROT/CCTS1 node
Settings. There are 6 settings tables.
There are no logical inputs or commands
Outputs: Table 96 shows the function’s output data.
CT Supervision Status. It is active when enabled and not blocked.
4. BREAKER
The status of the general breaker and by pole is determined with the status of digital
inputs and breaker type setting. Used to determine the status of the breaker without
uncertainty and employed in functions that require the breaker’s status to be known, such
as the breaking and closure sealing logic, the recloser, etc.
The 52b status inputs take precedence over the 52a status inputs, i.e., if 52b status
inputs have been configured, the breaker status is determined by means of these inputs,
independently of the status of the 52a inputs.
1 or 2 DI.General Status. The general 52b Status input is used for the breaker
status. If it is not configured, the general 52a Status input is used. The phase
breaker status matches the general.
3 or 6 DI.Per Pole. The independent phases 52b Status inputs are used for the
breaker status. If they are not configured, the general 52a Status inputs are used.
The general breaker status is generated from the phases, taking into account the
following:
Closed general status, if all the phases are closed.
Open general status, if at least one of the phases is open.
Table 98 shows this function’s outputs.
52_1 Closed (Simple Log.). Indicates the breaker's general status, in accordance
with the status of the digital inputs.
52_1 X Closed (Simple Log.). Indicates the status of each of the breaker's phases,
in accordance with the status of the digital inputs. Where "X" indicates the pole
(A, B or C)
Breaking monitoring status
The status of each pole (open, closed) is determined in accordance with a combination of
N/O and N/C inputs. If inconsistencies are detected between the N/O and the N/C inputs
after the failure time (”Pole failure time (ms)”), a failure is signalled and no other
action is taken (relative to the discrepancy) until the anomaly is corrected. The
functioning of this unit is shown in Figure 90.
PROT/XCBR1 node
Settings and logical inputs. There are 6 settings tables. For details see
Table 97.
There are associated commands:
Pos. Switch opening or closure command.
LOrdLc52Op. Local mode switch opening or closure command.
LOrdMaBl. Locking or unlocking operations command for switch in local mode.
BlkCls. Locking or unlocking switch operations command.
Outputs: Table 98 shows the function’s output data.
52_1 Open. Indicates that the 52 is open. There are independent general and
phase signals.
52_1 Closed. Indicates that the 52 is closed. There are independent general
and phase signals.
52_1 Undetermined. Indicates that the 52 is undetermined. There are
independent general and phase signals.
52_1 Failure. Indicates that the 52 has a failure. There are independent
general and phase signals.
Close Command - Breaker 1. Indicates that a closure command has been
generated.
Open Command - Breaker 1. Indicates that a opening command has been
generated.
Phase X Open Command - Breaker 1: Indicates that a Phase X opening command
has been generated. X can be A, B or C.
Close Failure - Breaker 1. Indicates that a failure has occurred in some
closing switch pole because maximum closing time has exceeded.
Phase. X Close Failure- Breaker1. Indicates that a failure has occurred in
closing switch X pole because maximum closing time has exceeded. X can be
A, B or C.
Open Failure - Breaker 1. Indicates that a failure has occurred in some
opening switch pole because maximum closing time has exceeded.
Phase. A Open Failure- Breaker 1 Indicates that a failure has occurred
opening switch X pole because maximum closing time has exceeded. X can be
A, B or C..
In Figure 90, the state switch logic diagram is displayed. Input signals to this scheme
are:
Enab, Logic 52_1: This input indicates the state 52 detection mode. Corresponds to
XCBR "52 Status detection" setting and allows the following values:
"1 or 2 DI.General Status ": There is only one digital input to indicate
the switch status.
"3 or 6 DI.Per Pole ". There are three digital inputs to indicate the
status of each phase.
52a input: Indicates the switch a logic input. Applies to "52a input" setting.
Active if the switch is closed.
52b input: Indicates the switch b logic input. Applies to "52b input" setting.
Active if the switch is open.
52a Pole A: Indicates the phase A 'a logic' input. Applies to " 52a-Pole A" Active
if the pole is closed.
52b Pole A: Indicates the phase A 'b logic' input. Applies to " 52b-Pole A" Active
if the pole is open.
52a Pole B: Indicates the phase B 'a logic' input. Applies to " 52a-Pole B" Active
if the pole is closed.
52b Pole B: Indicates the phase B 'b logic' input. Applies to " 52b-Pole B" Active
if the pole is open.
52a Pole C: Indicates the phase C 'a logic' input. Applies to " 52a-Pole C" Active
if the pole is closed..
52b Pole C: Indicates the phase C 'b logic' input. Applies to " 52b-Pole C" Active
if the pole is open.
SETTING
Enab. Logic 52_1 = 1 POLE / 4 STATUSES
SETTING
DIGITAL INPUT POLE
FAILURE T
52a input
0
DIGITAL INPUT
52b input
SETTING
DIGITAL INPUT POLE DIGITAL SIGNAL
FAILURE T DIGITAL SIGNAL 52_1 Undetermined
52a-Pole A
52_1 phase A Undetermined
0
DIGITAL SIGNAL
52_1 phase A Open
DIGITAL SIGNAL
52_1 phase A Closed
DIGITAL SIGNAL
52_1 phase A Failure
DIGITAL INPUT
52b-Pole A
SETTING
DIGITAL INPUT POLE
FAILURE T DIGITAL SIGNAL
52a-Pole B
52_1 phase B Undetermined
0 DIGITAL SIGNAL
DIGITAL SIGNAL 52_1 Open
52_1 phase B Open
DIGITAL SIGNAL
52_1 phase B Closed
DIGITAL SIGNAL
52_1 phase B Failure
DIGITAL INPUT
52b-Pole B
Open failure time (ms). If an open command is given, the breaker should be
open before this time.
Close failure time (ms). If a close command is given, the breaker should be
closed before this time.
Enable Events record. Allows the generation of protection events associated to
the function. If set to “NO”, the function’s protection events are not
generated. If set to “YES”, the function’s specific mask is contemplated.
Table 98 shows the operating logic’s output Data, which are available in the PROT/XCBR
nodes.
Figure 91 shows Trip logic scheme. The input signals of this scheme are:
Trip Sealed 52-1: Setting that indicates whether trip will be sealed after
completing trip conditions and manual opening. Corresponds to XCBR setting "Trip
sealed".
General Trip: Corresponds to the signal "General trip" generated with any trip.
Pole A (B,C) General Trip: Corresponds to the signals "Pole A General Trip", (B,C)
generated with any phase trip.
Manual open command input**: Indicates that open command has been generated by the
logic input "Open Command - Breaker 1" or by user command.
Manual Open blocking: Indicates that blocking command has been generated by the
logic input " Open blocking" or by user command.
52a pole A: Enabled indicates that phase A is closed. Corresponds to the signal
"52_1 A Closed (Simple Log.)".
52a pole B: Enabled indicates that phase B is closed. Corresponds to the signal
"52_1 B Closed (Simple Log.)".
52a pole C: Enabled indicates that phase C is closed. Corresponds to the signal
"52_1 C Closed (Simple Log.)".
Figure 92 shows Closure logic scheme. The input signals of this scheme are:
General trip: Indicates the signal generated with any trip. It is shown in "General
trip".
Manual open command: Internal signal indicating that open command has been
generated by the logic input "Breaker open command input" or by user command, and
is not blocked by the logic input "Open blocking" neither by user command.
Close sealed: Setting that indicates whether will be sealed after completing the
close order. Corresponds to the XCBR "Close sealed" setting.
RECLOSURE Command**: Internal signal indicating an OR of the reclosure commands.
They are displayed on signals "52_1 Reclose Command" (switch reclosure) and
"Reclosing Command F_RREC" (frecuency reclosure). It should not be blocked by the
logic input "Close Blocked" neither by user command.
Close command: Indicates the logic input "Close Command - Breaker" is enabled or a
closure order has been launched by user command. Formerly sincrocheck's "Perm.
Manual Close" must be enabled and must not be blocked by the logic input "Close
blocking" neither by user command.
52_1 closed: Signal indicating that switch is closed. Corresponds to the "52_1
Closed (Simple Log.)" signal.
52_1A closed: Signal indicating that phase A is closed. Corresponds to the "52_1 A
Closed (Simple Log.)" signal.
52_1B closed: Signal indicating that phase B is closed. Corresponds to the "52_1 B
Closed (Simple Log.)" signal.
52_1C closed: Signal indicating that phase C is closed. Corresponds to the "52_1 C
Closed (Simple Log.)" signal.
In order for a pole to be considered open, a combination of the following conditions must
be met (depending on the operation type setting):
If a single pole break is detected, the following functions can be blocked, if they are
selected by settings:
There is a delay of one cycle before the reset of the 1PO output (when the breaker
closes).
Figure 93 shows Open pole detector scheme.The input signals of this scheme are:
52_1A Closed: Signal indicating that phase A is closed. Corresponds to the "52_1 A
Closed (Simple Log.)" signal.
52_1 Closed: Signal indicating that switch is closed. Corresponds to the "52_1
Closed (Simple Log.)" signal.
52_1 Blocked:. Internal signal indicating that switch is blocked by the breaker 1
logical input "Close blocking" or by a blocking user command.
52_2A Closed: Signal indicating that phase A is closed. Corresponds to the "52_2 A
Closed (Simple Log.)" signal.
52_2 Closed: Signal indicating that switch is closed. Corresponds to the "52_2
Closed (Simple Log.)" signal.
52_2 Blocked:. Internal signal indicating that switch is blocked by the breaker 2
logical input "Close blocking" or by a blocking user command.
Configuration type = Breaker and a Half: Setting that allows to select switches
configuration schemes. Corresponds to the setting "Configuration type".
Phase A Open ( I < ): Signal "Phase A Open ( I < )".
DeadLine Phase A: Signal indicating that phase A is de-energized. Corresponds to
"Deadline Phase A" signal.
and their equivalents for phases B and C.
The settings for the configuration of the open pole detector are shown in Table 100 Open
pole detector settings
PROT/POPD1 node
Settings and logical inputs. There are 6 settings tables. See Table 100.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts if the unit is enabled.
Outputs: Table 101 shows the function’s output data.
Open Pole Status. It is active when enabled and not blocked.
Pole A Open. Indicates that the open pole conditions have been met in phase
A.
Pole B Open. Indicates that the open pole conditions have been met in phase
B.
Pole C Open. Indicates that the open pole conditions have been met in phase
C.
1PO- One Pole Open. Indicates that there is only one pole open (A, B or C).
2PO- Two Pole Open. Indicates that there are two poles open.
3PO- Three Pole Open. Indicates that there are three poles open.
PO-Some Pole Open. Indicates that at least one pole is open, but not all
three.
Phase A Open ( I< ). Indicates that the phase A current is below the
threshold.
Phase B open( I< ). Indicates that the phase B current is below the
threshold.
Phase C open( I< ). Indicates that the phase C current is below the
threshold.
Deadline Phase A. Indicates that pole A is de-energized.
Deadline Phase B. Indicates that pole B is de-energized.
Deadline Phase C. Indicates that pole C is de-energized.
Deadline Phase ABC. Indicates that the three poles are de-energized.
If the open pole detection is activated in at least one of the phases, the phases
overcurrent instantaneous units are reset.
The output signals are in the PROT/POPD node (see Table 101):
Phase A Open ( I < ). Indicates that the phase A current is below the threshold.
Phase B open ( I < ). Indicates that the phase B current is below the threshold.
Phase C open ( I < ). Indicates that the phase C current is below the threshold.
ANALOGUE INPUT
DIGITAL SIGNAL
IA (min (dft,dft ½)) +
< Phase A Open ( I < )
SETTING -
ANALOGUE INPUT
DIGITAL SIGNAL
IB (min (dft,dft ½)) +
-
< Phase B Open ( I < )
DIGITAL SIGNAL
ANALOGUE INPUT +
< Phase C Open ( I < )
IC (min (dft,dft ½)) -
The output signals are in the PROT/POPD node (see Table 101):
allows a selection to be made between two modes of operation (see Figure 96 and Figure
97).
52_1 failure: Indicates that 52 is in fault because "Pole failure time (ms) "time
has been exceeded. Corresponds to "52_1 Failure" signal.
52_1 phase A open: Signal indicating that switch is closed. Corresponds to the
"52_1 A Closed (Simple Log.)" signal deactivated.
52_1 phase B open: Signal indicating that switch is closed. Corresponds to the
"52_1 B Closed (Simple Log.)" signal deactivated.
52_1 phase C open: Signal indicating that switch is closed. Corresponds to the
"52_1 C Closed (Simple Log.)" signal deactivated.
The settings for the configuration of this unit are shown in Table 102.
PROT/RPLD1 node
Settings and logical inputs. There are 6 settings tables.
Commands:
“DOrdBlk”: Function block and unblocking. Only acts if the unit is enabled.
Outputs: Figure 113 shows the function’s output data.
Pole Discordance Status. It is active when enabled and not blocked.
52_1 Start Discordance. Indicates that the function has started.
52_1 Trip Discordance. Indicates that the function has tripped.
52_1 Discordance open 1P. Indicates that there is discordance with only one
open pole.
52_1 Discordance open 2P. Indicates that there is discordance with two open
poles.
Table 103 Pole discordance outputs
It monitors the breaker’s operations after the trip and closure commands. In addition to
signals, the counters generated by these functions are shown in the statistical data.
The settings for the configuration of this unit are shown in Table 104:
ki2 calculation type. Indicates the calculation type between kI2*t, kI2 and kI.
ki2 time (ms). Indicates the timeout following the trip for the measurement of the
ki1 calculation current.
Alarm value ki2. Indicates the ki2 summation threshold which, when exceeded,
generates a “ki2 exceeded” signal.
Initial value ki2. Indicates the initial value of the ki2 summation when a reset
command is received.
Trips exceeded window (min). Time window in minutes for the excessive number of
trips counter.
Maximum number of trips. Maximum number of trips permitted in the set time window.
Mechanical opening T (ms). Indicates the maximum time as of the opening command
until the detection of the open pole by the digital input status.
Mechanical closing T (ms). Indicates the maximum time as of the closure command
until the detection of the closed pole by the digital input status.
Electrical opening T (ms). Indicates the maximum time as of the opening command
until the detection of the absence of current in the phase.
Electrical closing T (ms). Indicates the maximum time as of the closure command
until the detection of the presence of current in the phase.
Inactivity time (days). Indicates the maximum number of days without breaker
activity.
Opening dispersion T (ms). Indicates the maximum dispersion time between two poles
upon opening.
Closing dispersion T (ms). Indicates the maximum dispersion time between two poles
upon closing.
Enable Events record. Allows the generation of protection events associated to the
function. If set to “NO”, the function’s protection events are not generated. If
set to “YES”, the function’s specific mask is contemplated.
PROT/CBOU1 node
Settings. There are 6 settings tables. See Table 104.
Outputs: Table 105 shows the function’s output data. The meaning of each signal is
detailed in the function explanation.
kI2 sum:
After a trip, the kI2 counter increases in accordance with the selected setting. The value
of each phase’s current is calculated in primary (VT ratio), as kA primary. There are a
total of 3 counters (one for each phase).
If it exceeds the set threshold (the treatment is pole to pole), a “Phase X Ki2 exceeded”
signal is generated. While in this situation, the corresponding signal is sent to control.
The signals are:
Phase X ki2 exceeded. Where X is the phase. It is independent for each phase.
ki2 exceeded. One for all the phases.
In order to calculate the pole wear, the type of calculation wanted can be programmed from
among kI2*t, kI2 and kI.
If Ki2 is chosen, the kA2 are calculated with I as the current measured after exceeding
the set timeout following the trip.
If kI is chosen, only the sum of the currents in kA is calculated, with I as the current
measured after exceeding the set timeout following the trip.
If Ki2 *t is chosen, the Ki2 /100 value is accumulated every 10ms, with I as the current
measured after exceeding the set timeout following the trip. The accumulation terminates
when I<0.05 A.
Excessive number of trips:
It counts the trips produced in the time, generating a signal when the number of trips is
higher than the programmed number during the programmed time and changes to a definite
trip. The time period is reset upon a manual closure. The counter may be reset to the
initial value at any moment by means of a command. The signals are:
Open counter:
There are independent open and trip counters for each phase:
Closure counters:
There are independent closure counters for each phase. A breaker's changes from open to
close are considered closures.
They count the time elapsed from the command sent to the breaker unto its electric
operation, measured with the current:
Trip time: The time elapsed from the open command until the detection of the absence of
power.
Closure time: The time elapsed from the closure command until the detection of the
presence of power.
The open pole detector current threshold is used.
These times are compared with the threshold settings. Events are generated per pole when
the thresholds are exceeded “Pole X electric time exceeded”:
If the time elapsed from the open command exceeds the setting “Electrical opening T (ms)”
If the time elapsed from the closure command exceeds the setting “Electrical closing T
(ms)”
Mechanical breaking and closure operating time per pole:
They count the time elapsed from the command sent to the breaker unto its mechanical
operation, detected in the digital inputs status:
Trip time: Indicates the time elapsed as of the opening command until the detection of
the open pole by the digital input status.
Closure time: Indicates the time elapsed as of the closure command until the detection of
the closed pole by the digital input status.
These times are compared with the threshold settings. Events are generated per pole when
the thresholds are exceeded “Pole X mechan.time exceeded”:
If the time elapsed from the open command exceeds the setting “Mechanical opening T (ms)”
If the time elapsed from the closure command exceeds the setting “Mechanical closing T
(ms)”
Breaking and closure dispersion time for each pole pair:
They count the difference between the opening and closure times for every two poles. There
are opening/closure counters for pole pairs AB, BC and CA. The breaker status is determined
by means of the digital input status.
These times are compared with the threshold settings. Events are generated per pole when
the thresholds are exceeded “XY dispersion time exceeded”:
During the opening, a comparison is made with the "Opening dispersion T (ms)" setting.
During the closure, a comparison is made with the "Closing dispersion T (ms)" setting.
Days of breaker inactivity without status change:
The days elapsed, since the last opening or closure of the breaker, are counted for each
pole. Complete fractions of 24 hours since the last action are considered. Partial periods
of 24 hours are not accumulated, i.e., if 2 days and 20 hours have passed since the last
action, the counter will indicate 2 days. If at this point the time count is reset to zero,
the 20 hours would be lost.
These counters are compared with the “Inactivity Time (days)” setting and an event is
generated per pole in the event of it being exceeded "Pole X inactivity time exceeded".
The maximum current value measured at the moment of the trip is indicated per pole. The
three poles can be reset to zero using the reset command.
Overcurrent levels:
Indicates the time in seconds during which each phase's current is within each of the
following ranges (with In as the set rated current):
It monitors the circuits by pole, detecting any discontinuity with the breaker open and
closed. It requires the assignment of the monitoring inputs (the breaker circuit with open
and closed breaker, the closure circuit with open and closed breaker). It is activated 20
seconds after the detection of the fault and remains active while the fault persists.
Up to six trip circuits and three closure circuits can be monitored, using the number of
digital inputs required.
Figure 98 shows an example of the wiring for the monitoring of the closure circuit. The
wiring for the trip circuit is similar.
When the breaker is closed, the contact “52a” contact is also closed. If there is
continuity in the circuit, the input programmed as “Close circuit 52 closed” is detected as
closed. If there is no continuity, it is detected as open (circuit failure).
When the breaker is open, the contact “52b” contact is also closed. If there is continuity
in the circuit, the input programmed as “Close circuit 52 open” is detected as closed. If
there is no continuity, it is detected as open (circuit failure).
The “closing coil failure” or “trip coil failure” signals are activated 20 seconds after
the fault is detected, in the event of the fault persisting upon the conclusion of this
period.
The settings for the configuration of this unit are shown in Table 106:
PROT/RBCS1 node
Settings and logical inputs. There are 6 settings tables. See Table 106.
Outputs: Table 107 shows the function’s output data.
X trip coil failure. Indicates that there has been failure in the pole X
trip coil.
X closing coil failure. Indicates that there has been failure in the pole X
closure coil.
1 trip circuit failure. Indicates that there has been failure in the trip
coil of pole A1, B1 or C1.
2 trip circuit failure. Indicates that there has been failure in the trip
coil of pole A2, B2 or C2.
1 closing circuit failure. Indicates that there has been failure in the
closure coil of pole A1, B1 or C1.
2 closing circuit failure. Indicates that there has been failure in the
closure coil of pole A2, B2 or C2.
5. AUTOMATISMS
5.1 SYNCHRONISM
The synchronism function or “synchrocheck” waits for the appropriate conditions established
in the settings, to determine breaker closure, both manual and automatic.
Two voltage signals from the two sides of the breaker, which we will call side A and side
B, are compared.
Side A corresponds to the voltage input selected with the setting “Side A Phase Select”.
This setting select the analogue input used. The selection between ground to phase and
phase to phase voltages is made with the setting “Operating Voltages” of the node TVTR.
With this setting a compensation factor is applied to equalize the module and the angle of
the two voltages compared (side A and side B).
Side B corresponds to the analogue voltage input connected to the synchronism voltage
terminals.
Enabled. Indicates whether the function is enabled or not. When enabled, the function
tests the synchronism conditions. When disabled, it manual closure permission is granted,
but automatic permission is refused.
Side A phase reference: selectable between A/AB, B/BC, C/AC, corresponding to the
measurement of the selected voltage transformer. A/AB for transformer 10, B/BC for
transformer 11 and C/CA for transformer 12.
Module compensation: the factor by which the module is multiplied in order to equalize
the voltages.
Angle compensation: the factor to be added to the angle in order to equalize the
voltages.
The synchronism function can be disabled by means of a setting (“NO”), or by means of a
“fuse failure” or a “breaker closure permission block” digital input.
When disabled, manual closure permission is granted but not automatic closure permission.
In order to give closure permission when enabled, the function contemplates the conditions
that grant undervoltage permission or synchronism permission. If any of then grants
permission, closure permission is granted. Manual and automatic closure permissions are
analysed independently.
Undervoltage:
When disabled undervoltage permission is refused.
When enabled, undervoltage conditions are analised. If undervoltage permission is
granted, closure permission is granted, independently of synchronism conditions.
Synchronism: when undervoltage permission is not granted, synchronism conditions are
analised
When disabled synchronism permission is refused.
When enabled, synchronism conditions are analised. .
A-Side Voltage presence (V): the voltage measured in side A must exceed this value
in order to consider that there is voltage on that side of the breaker.
A-Side Lack of Voltage (V): the voltage measured in side A must be lower than this
value in order to consider that there is an absence of voltage on that side of the
breaker. It must be at least 5% less than Voltage presence.
B-Side Voltage presence (V): the voltage measured in side B must exceed this value
in order to consider that there is voltage on that side of the breaker.
B-Side Lack of Voltage (V): the voltage measured in side B must be lower than this
value in order to consider that there is an absence of voltage on that side of the
breaker. It must be at least 5% less than Voltage presence.
Autoreclose condition. Indicates the conditions for granting undervoltage
reclosing permission:
Without permission: under no circumstances will the function grant undervoltage
permission
No A and B: there must be an absence of voltage on side A in order for the
function to grant undervoltage permission.
A and not B: there must be an absence of voltage on side B in order for the
function to grant undervoltage permission.
No A and No B: there must be an absence of voltage on both sides of the breaker
in order for the function to grant undervoltage permission.
No A or No B: there must be an absence of voltage on one of the sides of the
breaker in order for the function to grant undervoltage permission.
A XOR B: there must be voltage presence on one side of the breaker and an
absence on the other in order for the function to grant undervoltage permission.
Manual closing condition. Indicates the conditions for granting undervoltage
manual closing permission:
Without permission: under no circumstances will the function grant undervoltage
permission
No A and B: there must be an absence of voltage on side A in order for the
function to grant undervoltage permission.
A and not B: there must be an absence of voltage on side B in order for the
function to grant undervoltage permission.
No A and No B: there must be an absence of voltage on both sides of the breaker
in order for the function to grant undervoltage permission.
No A or No B: there must be an absence of voltage on one of the sides of the
breaker in order for the function to grant undervoltage permission.
A XOR B: there must be voltage presence on one side of the breaker and an
absence on the other in order for the function to grant undervoltage permission.
The detection of the presence or the absence of voltage is always done in all the phases.
However, the analysis of the conditions for granting or refusing breaker close permission
is only carried out if the function is enabled.
In which:
If this argument difference decreases when the “Sync. Enabled” is set with compensation
and closure in 0º, the condition for granting permission will be:
If this difference decreases when the “Sync. Enabled”is set with compensation, in order
for permission to be granted the difference must be around 0º. If the argument difference
is increasing, the following must be met:
Node: PROT/RSYN1
Settings and logical inputs: There are 6 settings tables. See Table 108.
Blocking input: logic input which, when active, blocks the function.
Close blocking: logic input which, when active, blocks the breaker close
permission.
Fuse failure signal: fuse failure logic input which, when active, blocks the
function.
Commands:
DOrdSyBlk1: Function block and unblocking. Only acts when the function is
enabled.
DOrdPeBlk1: Close permission block and unblock. Only acts when the function is
enabled.
Outputs: Table 109 shows the function’s output data.
Synchrocheck function signals (see Table 109). It is necessary that voltage presence is
detected on both sides of the breaker in all of them:
Positive slip Breaker 1: active if the frequency on the B side is also greater
than that on side A by more than 10mHz.
Negative slip Breaker 1: active if the frequency on the A side is also greater
than that on side B by more than 10mHz.
Underfrequency side B B1: active if the frequency difference of both sides exceeds
the setting value and the frequency on side A is greater than that on side B.
Overfrequency side B B1: active if the frequency difference of both sides exceeds
the setting value and the frequency on side B is greater than that on side A.
Delay without comp. side B 1: with the difference between the arguments exceeds
the setting value and is greater on side A than on side B.
Advance without comp. side B 1: with the difference between the arguments exceeds
the setting value and is greater on side B than on side A.
Delay with comp. side B 1: with the difference between the arguments, calculated
by taking into account breaker closure time, exceeds the setting value and is
greater on side A than on side B.
Advance with comp. side B 1: with the difference between the arguments, calculated
by taking into account breaker closure time, exceeds the setting value and is
greater on side B than on side A.
Over Module side B B1: the voltage difference is greater than the programmed
setting and the voltage in B is greater than in A.
Under Module side B B1: the voltage difference is greater than the programmed
setting and the voltage in A is greater than in B.
Perm. without comp.. B1: indicates that differences in voltage, argument and
frequencies are lower than the corresponding settings.
Perm. with comp.. B1: when the necessary conditions related to the voltage,
argument and frequencies differences are given, taking into account the breaker
closure time for calculating the argument difference.
Perm. Manual Close V B1: Manual closure permission for voltage checks. It´s
active when the undervoltage conditions are met.
Permission Recloser V B1: Reclosure permission for voltage checks. It´s active
when the undervoltage conditions are met.
Perm. Manual Close B1: closure permission for undervoltage or for synchronism.
It´s actived, due to compliance with the undervoltage conditions or the
synchronism conditions. If the function is disabled, manual closure permission
will also be signalled.
Perm. Reclose Br 1: reclosure permission for undervoltage or synchronism, so that
the recloser decides on the automatic closure of the breaker. It´s actived, due to
compliance with the undervoltage conditions or the synchronism conditions.
5.2 RECLOSER
The unit allows up to 4 reclosures to be effected. In order to make the recloser as useful
as possible, the number of reclosures allowed is programmable (0 is not permitted).
The recloser is put into service – out of service by means of a setting. Only when enabled
by setting can it be put into service-out of service by means of a command via
communications or the keyboard.
Programmable reclaim time following manual closure and following automatic closure.
The 5 closure counters (total, first, second, third and fourth closures) are stored in non-
volatile memory and can be viewed in the console and on the display. These counters can be
set to 0 by command or by the keyboard.
The closure cycle can be started either by the unit's own protection trips or by external
trips from other protections.
Supervising status.
This is the normal status, during which the recloser “monitors” for the occurrence of any
trips. If any trip occurs, the recloser is activated.
Definitions:
Reclosable units.
Units which are capable of initiating the reclosure process. By default, they are
overcurrent or distance units. The non-reclosable units are those whose trips do not
initiate the reclosure cycle (voltage, frequency, power units, etc). There is an input
which can be programmed as “Reclosable configurable trip”.
Faults between phases reclosure timeouts: first, second, third and fourth.
This is the timeout following a phase trip until the recloser issues a closure
command in each of the reclosure phases. There are differentiated closure times for
each of the closures.
The general settings used for the supervising for synchronism (PROT/RLSS1 node) are (see
Table 111):
The settings used for the monitoring by reference voltage (PROT/RVRS1 node) are (see
Table 112):
Table 113 shows the output signal of the monitoring by reference voltage (PROT/RVRS1
node):
The setting used for blocking a closure due to a failure in the breaker’s coils
(PROT/RTCS1 node) is (see Table 114):
Lock by Coil failure. Indicates whether the recloser blockin by failure in the
breaker’s coils is enabled or not.
5.2.1.1 Signals
The recloser’s output signals are in the PROT/RREC1 node and are shown in Table 115
and Table 116.
Recloser paused. Indicates that the recloser is in pause in the closure time
counter.
Reclosing Started. Indicates that the reclosure process has started.
Reclosing 1 Started. Indicates that the first reclosure process has started.
Reclosing 2 Started. Indicates that the second reclosure process has started.
Reclosing 3 Started. Indicates that the third reclosure process has started.
Reclosing 4 Started. Indicates that the fourth reclosure process has started.
Successful Reclosing. Indicates that the reclosure process was completed
successfully.
Breaker Reclosing ongoing. Indicates that the breaker is reclosing.
Recloser Internal Lock. Indicates that the recloser is in internal block due
to any cause.
Recloser Definitve Trip Lock. Indicates that the recloser is in internal block
due to a definitive trip.
Recloser Lock 52 opened. Indicates that the recloser is in internal block due
to a manual break.
Recloser Lock Trip Exceeded. Indicates that the recloser is in internal block
due to an excessive number of trips.
Recloser Lock switch on fault. Indicates that the recloser is in internal
block due to a switch onto fault, i.e., a trip is produced during the reclaim
time following a manual closure.
Recloser Lock No Syncrocheck. Indicates that the recloser is in internal block
due to the ausence of syncrcheck.
Recloser Lock without Vref. Indicates that the recloser is in internal block
due to the ausence of vref.
Recloser Lock Pole discordance. If the discordance function acts, the
reclosure cycle is blocked.
Recloser Lock Close Failure. Indicates that the recloser is in internal block
due to the close failure. Related to the breaker monitoring.
Recloser Lock opening Failure. Indicates that the recloser is in internal
block due to the open failure. Related to the breaker monitoring.
Recloser External Lock. Indicates that the recloser is in external block due
to any cause.
Recloser External Lock Comms. Indicates that the recloser is in external
block due to command.
Recloser External Lock Input. Indicates that the recloser is in external
block due to logical input.
Reclosing Start failure. Indicates that the recloser is blocked due to
reclosing start failure.
Recloser Lock End of cycle. Indicates that the recloser is blocked due to the
end of the reclosing cycle.
Recloser Lock manual closing. Indicates that the recloser is blocked due to
manual reclosing.
Recloser Lock manual opening. Indicates that the recloser is blocked due to
manual opening.
Recloser Trip In Safety time. Indicates that the recloser is blocked due to a
trip in safety time.
Recloser Incomplete sequence. Indicates that the recloser is blocked because
the sequence time is exceeded.
Recloser Lock TC Failure. Indicates that the recloser is blocked due to
breaker circuit supervision failure.
They are stored in a non-volatile memory and displayed in the statistical data
(communications and display).
A signal is generated the trip limit is exceeded (“excessive number of trips” setting)
within a set time (“excessive number of trips time window” setting).
It remains in the Manual Opening and Definitive Trip statuses until the breaker is closed
manually.
If the breaker does not open during the block (or reclaim) time, it enters
Supervising.
If there is a manual opening, it enters Manual Opening Block.
If there is an opening by a protection, it enters Definitive Trip Block.
If the protection acts but the breaker does not open (or the trip remains active) during
the programmed time, it enters internal block due to opening failure and the
corresponding signal is activated. It leaves this status following a manual opening, a
breaker closure command or a reset.
During each cycle a programmed time is observed and the breaker closes. If the breaker
does not trip due to a protection within the reclaim time, the Supervising (reset) status
is entered. If it does, the following closure is initiated. If this was the last, the
Definitive Trip is initiated.
If, following the action of the protection, the breaker does not open in the preset time
or the relay continues to trip, the internal block begins to operate. If, following a
closure and while the safety time is being counted, there is a manual opening. In this
case, it enters Manual Opening Block and exits the cycle.
If, while the reclosure time is being counted, a manual closure is produced, the recloser
aborts the reclosure cycle and enters “Manual closure”. Following the corresponding
reclaim time, it returns to standby.
The action of the external block prevents the cycle from being entered, or the exit from
any ongoing cycle. If the breaker opens while the block is in effect, it enters
Definitive Trip block.
If the synchrocheck function is enabled and the synchrocheck monitoring setting is set to
YES, this function must issue closure permission in order for the closure relay to be
activated.
The figures below show the sequence of events for a reclosure which has been programmed
for three reclosure attempts (TR1, TR2 and TR3, respectively), with a reclaim time of
Tsec, for different situations:
Once the Supervising status has been reached, a new trip causes a new cycle to begin and
reclosure 1 is started once more, as shown below:
d.- Changes to definitive trip after exhausting the number of programmed reclosures.
e.- Changes to definitive trip due to a trip during the reclaim time following a manual
closure.
Indicates if this unit produces a general trip or not. The protection functions can be
enabled or disabled and can trigger a trip and/or a pick up independently of which units
are to open the breaker. The general trip signal is sent to the breaker and is configured
by means of this mask.
In order, upon tripping, for a unit to activate the general trip, it must meet (see
Figure 101):
Be enabled
Have its general trip mask set to YES
If the recloser is enabled, the unit must not be blocked by the trip
permission mask.
Each protection unit has an independent setting which is used to enable or disable its
general trip. Its reference is "GenTrip" and allows the options “YES/NO”.
79 in service
AJ 51-1 -> D.G.
with 79 blocked
79 blocked
51-1 Trip
AJ 51-1 -> D.G.
General trip
51-2 Trip
AJ 51-2->D.G.
………………………….
Unit X Trip
AJ X->D.G.
This mask is used to select which trips are associated to the “general trip” (with the
recloser in service), depending on the status of the recloser.
Independently of these settings, the protection units pick up and trip, activating their
corresponding signals.
The unit that is to produce the trip (activate the general trip signal) can be selected
by programming 4 trip masks peer unit and which are active in the following moments:
Each protection unit has independent masks. If a unit trips during a specific recloser
status (blocked, in security t, etc.) and the corresponding mask is set to YES, the trip
is sent to the general trip output. If the mask is set to NO, the trip is produced but
the "direct trip" signal is not received.
Reclosure block. When selected, the trip of this unit block the recloser. Detailed
description in the chapter “Post-trip reclosure permission mask”.
Each protection unit has an independent setting which is used to enable or disable the
unit’s permissions. The reference is “TripPerm”. The setting is configured as a bit field
where each bit corresponds to a selection, indicating the integer value:
An example of use with trip permissions in standby and following reclosures would be the
decimal value 122 (01111010 in binary), broken down into:
Bit 7 6 5 4 3 2 1 0
Value 0 1 1 1 1 0 1 0
The maximum permitted value with all permissions enabled is 255 (11111111 in binary).
Table 118 Trip permission following reclosure (in each protection node)
The enabling of the corresponding R1, R2, R3 and R4 post-trip reclosure permission mask
is checked with each trip. If they are not enabled, the reclosure cycle is interrupted.
In the event of simultaneous trips (before the opening of the breaker), the units with
reclosure permission are taken into account in order start the reclosure cycle.
Additionally, the trips which force the recloser to enter a block are also checked.
If consecutive trips are produced in different units, the relay reviews the tripped
units’ masks and allows as many reclosures as correspond to the minimum number allowed
for the units involved.
That is, if the minimum number of reclosures is set to 3, reclosures 1, 2 and 3 are
allowed.
Once the number of permitted cycles has been exceeded, a new trip causes the recloser to
enter “Definitive trip block”.
Reclosable trips
These are trips that are capable of initiating the reclosure cycle is programmed
accordingly. In general, they are trips corresponding to the overcurrent and distance
units, as well as the external trip inputs and the configurable reclosable trip input.
If various units issue a trip order during a fault and at least one of the tripped
units has reclosure permission, the reclosure cycle is initiated, unless one of the
units is set to produce a 79 block.
The logical “Configurable autoreclose” input allows any internal signal to be assigned as
the cause of a reclosure. It allows reclosure for any external cause (including the
breaker status).
Likewise, there are various unit block inputs (for status and for pulses), thus making it
possible to transfer any signal that is to be used to avoid the reclosure to this input.
Non-reclosable trips
If a non-reclosable trip is produced (27, 59, 59N, 81, 81R), the reclosure unit will not
launch the reclosure sequence for this cause and, depending on whether the reclosure
block mask has been set to YES, it will force the recloser to enter the definitive trip
status.
If the trip does not open the breaker (because it has not given rise to the general
trip), the recloser will remain in its current status.
This is used when a specific unit is not to produce a reclosure following a trip and when
this unit is to prevail over those with permissions in the event of simultaneous trips.
If this mask is not used, two units may trip simultaneously and the recloser may reclose
due to one of the units being reclosable.
In the event of the non-reclosable unit tripping on its own, the breaker will open and
remain in a block status.
In addition to these masks, the relay has logic inputs that allow the recloser to be
blocked. Through the logical assignment of internal signals to these inputs, the user can
modify the operation of the recloser.
Each protection unit has an independent setting which is used to enable or disable this
unit’s reclosure due to trip permissions. The reference is “ReC1Perm”. The setting is
configured as a menu of options.
Data Reference
0 NO None reclose is allowed
1 Reclose 1 Only the first reclose is allowed.
2 Reclose 2 Only the second reclose is allowed.
3 Reclose 1-2 The first and second recloses are allowed.
4 Reclose 3 Only the thrird reclose is allowed.
5 Reclose 1-3 The first and thrird recloses are allowed.
6 Reclose 2-3 The second and thrird recloses are allowed.
7 Reclose 1-2-3 The first three recloses are allowed.
8 Reclose 4 Only the fourth reclose is allowed.
9 Reclose 1-4 The first and fourth recloses are allowed.
10 Reclose 2-4 The second and fourth recloses are allowed.
11 Reclose 1-2-4 The first, second and fourth recloses are allowed.
12 Reclose 3-4 The thrird and fourth recloses are allowed.
13 Reclose 1-3-4 The first, thrird and fourth recloses are allowed.
14 Reclose 2-3-4 The second, thrird and fourth recloses are allowed.
15 Reclose 1-2-3-4 All recloses are allowed
Table 119 Reclosure permissions following trip (in each protection node)
Internal trips
External trips
Upon the opening of the breaker and once it has been determined whether the fault is a
grounding fault or a fault between phases, a reclosure time that is programmed in
accordance with the chosen setting (phases or grounding) is launched.
If during this programmed period of time the breaker opens, the ongoing cycle is
initiated and the “79CC-Ongoing cycle” signal is activated.
This signal will remain active until the cycle terminates upon its completion and a
standby or block status is entered.
If the 52 NO and NC inputs are programmed, the 52b (NC) will be taken into consideration
to detect the opening. If only the 52a (NO) input is programmed, this signal at zero will
be used as an open status.
The reclosures which are to be possible following the tripping of a specific unit can
also be selected.
The enabling of the corresponding R1, R2, R3 and R4 permission mask is checked with each
trip. If they are not enabled, the reclosure cycle is interrupted.
In the event of simultaneous trips (before the opening of 52), the units with reclosure
permission are taken into account in order start the reclosure cycle.
Additionally, the trips which force the recloser to enter a block are also checked.
If consecutive trips are produced in different units, the relay reviews the tripped
units’ masks and allows as many reclosures as correspond to the minimum number allowed
for the units involved. That is, if the minimum number of reclosures is set to 3,
reclosures 1, 2 and 3 are allowed.
Once the number of permitted cycles has been exceeded, a new trip causes the recloser to
enter “Definitive trip block”.
All the trips (reclosable, non-reclosable and block) are checked up to the moment in
which the breaker opens.
Any block trips which appear are sent directly to a blocked recloser.
If there are only reclosable trips, the reclosure cycle is begun with the time of the
first reclosable produced by the trip.
Examples of operation.
Example 1:
Example 4:
This monitoring is equivalent to a pause signal that halts the reclosure cycle during the
VREF timeout.
It operates as follows:
Once the breaker has opened and the trip has dropped out, the reclosure cycle
is initiated and the reclosure time is launched.
In the absence of VREF, “VREF timeout” is launched, during which the VREF
signal should be activated to allow the continuation of the reclosure process.
If the VREF signal does not appear prior to the elapse of this time, the
internal 79 block due to absence of VREF” status is entered.
This status is cancelled by means of a closure or following the activation of
the recloser reset input.
When the “Pause with reclosure reinitiation” input is activated, the recloser time
counter (dead time) is reset to zero and the 79 is halted until this input is cleared.
When this input is activated, the reclosure time counter (dead time) is halted until this
input is cleared.
This timed is used to check that the recloser has exceeded a defined time without issuing
a closure command nor becoming blocked or resetting, thus causing the recloser to enter a
block by incomplete sequence status.
If synchronism permission is not activated, the “Block due to lack of synchronism” status
is entered.
The first and the rest of the reclosures can be set to monitoring by synchronism by means
of a setting. This allows the first reclosures to be carried out quickly and without the
need to check for synchronism, in the case of specific faults, and normal reclosures for
the rest.
Settings can be used to establish whether the synchronism is to check the relay’s
functioning or that or an external input.
There is a setting within the synchronism unit to enable monitoring by synchronism for
the recloser and for manual closing. As they are independent settings, by disabling
function 25 it is possible to monitor the reclosure with the external synchronism input.
If the setting “Synchrocheck type” is internal, the recloser waits the permission signal
is activated. If the setting is external, the recloser waits the activation of the
“External syncro. Permission” input.
This status is cancelled by the manual closure of the breaker following the elapse of the
reclaim time.
If the 52 NO and NC inputs are programmed, the 52b (NC) will be taken into consideration
to detect the closure.
If only the 52b (NC) is programmed, this denied signal will be used.
Out of service.
Supervising, standby or reset.
Manual opening.
Internal block. Includes the Definitive trip.
External block.
Reclosure successful
This status is exited when the function is enabled by a setting or command (R key
or command or logical input). The transitory manual closure setting is entered if
the breaker is closed at this time. If the breaker is open, internal block (due to
manual opening) is entered.
The functioning is similar when the relay lights and the reclosure setting is set
to YES.
Whenever the breaker is closed for a period that exceeds the reclaim time
(following a manual closure or following a trip).
If the block signal is cleared when the breaker is closed and in the external
block status.
This status is exited:
By the action of the protection and the subsequent opening of the breaker. If
reclosure is to follow, the cycle is initiated. If not, Definitive trip is
entered.
Due to the manual opening of the breaker. Manual Opening is entered.
This status is cancelled when the 52 is closed manually (by command, contact, etc.,
by not by reclosure).
Figure 107 Manual opening
Opening failure
Closure failure
Manual opening
Three-phase Trip
Definitive trip
Incomplete sequence
The reclosure cycle is not started in this status. The cycle is abandoned if it has
already been started and Definitive Trip is signalled if the breaker has opened as
a result of a protection trip.
This status is cancelled by the closure of the breaker following the elapse of the
reclaim time.
This status is entered if, following the elapse of the breaker fault time after a
trip, the breaker remains closed.
This status is cancelled when the breaker opens. The opening failure time is the
same as that of the opening fault with contact function.
DGITAL SIGNAL
General trip Time
If the breaker remains open following the elapse of the breaker closure
failure time after a closure command. “Definitive trip” is also signalled.
If the trip circuit failure block is enabled. If, when activating the closure
command, the command activates the trip and closure circuits’ monitoring
logic’s "trip circuit failure” signal, the closure command is not issued and
“closure command blocked" is signalled. Following the elapse of the closure
failure time, the block by closure failure status is entered.
This status is cancelled by the manual closure of the breaker following the elapse
of the reclaim time.
Definitive trip
This status is activated following a trip that fails to produce a reclosure due to
a 79 block or for having reached the end of the cycle with the fault intact:
The “successful reclosure” signal is activated and remains so until the relay trips
once again.
Due to the manual opening of the breaker. An internal block due to manual
opening is activated.
Due to the action of the protection. An internal block due to definitive trip
is activated.
Following the elapse of the safety time. Standby is activated.
Due to the activation of the external block input or block command. An
external block is activated.
Due to the action of the protection following an opening failure (52 does not
open or the unit remains tripped). An internal block due to an opening fault
is activated.
At the same time as the closure time count, the monitoring by VREF (during a
maximum “VREF timeout” period) and by synchronism.
It is cancelled:
Because the breaker has closed in the permitted time. Phase 3 entered.
Because the permitted time has elapsed without the closure of the breaker. An
internal block is activated and “Internal block due to closure failure” and
“Definitive trip” is signalled. The relay’s Breaker failure due to contact
signal is also activated.
It is cancelled:
Due to the manual opening of the breaker. “Internal block” is activated and
“Internal block by manual opening” is signalled.
Due to a protection trip. The second reclosure process is entered, phase 1.
Because the block time has elapsed without the opening of the breaker. Standby
is activated.
A low current permanent fault may cause tripping following the elapse of the safety
period. To avoid, in the event of all the reclosures being first reclosures and no
definitive trip is produced, the automatic extension of the timeout due the pick up
of a unit capable of producing a reclosable general trip in standby (“Trip
permission with 79 in standby” set to YES) until reset or a trip is produced.
If, during the operating cycle, a manual order (or command) is given to the circuit
breaker, the recloser suspends the cycle and switches "internal block due to manual
opening" or "manual closure".
The unit, following a minimum frequency trip and in the case of the function having been
enabled and not locked, will only attempt one reclosure.
The logical input “Restoration trip (start)” must be activated, to start the reclosing.
When the trip occurs, the 79f-breaker closure lock signal is activated and the period
programmed as the “definite trip timeout” is observed. If the minimum frequency condition
is set to “NO” or if the frequency is higher than the minimum programmed value during the
programmed “closure time”, a closure command is issued to the breaker. If the minimum
voltage condition is set to “YES” and is not met, the definitive trip is activated.
The 79f-breaker closure block will remain active until the reclosure or definitive trip
conditions are met.
If the “Enab. maximum reset time” is set to “YES” and the programmed “maximum reset time
(s)” elapses without the reclosure conditions having been met, an internal block due to
failure to meet conditions (with definitive trip) is activated. If the setting is set to
“NO”, the reclosure conditions are waited for indefinitely.
A “reclaim time” is observed following the closure. If a new minimum frequency trip occurs
during this period, it moves to internal block with definitive trip.
The frequency recloser’s general operation is shown in Figure 118 to Figure 125.
F restoration blocking. Logic input, which selects the signal which, when active,
blocks the frequency recloser.
Restoration trip (start). Logic input, which selects the signal which, when
active, indicates that a reclosable trip has been produced.
f restoration reset input. Logic input, which selects the signal which, when
active, resets the frequency recloser.
Enable Events record. Allows the generation of protection events associated to the
function. If set to “NO”, the function’s protection events are not generated. If
set to “YES”, the function’s specific mask is contemplated.
PROT/FRREC1 node
Settings. There are 6 settings tables. See Table 120.
There are no commands
Outputs: Table 121 shows the function’s output data.
Start reclosing F_RREC. Indicates the start of the reclosing cycle (Figure
119). It begins with the trip and finishes with a successful reclosing or
recloser blocked or the activation of the “f restoration reset input”.
Current Cycle F_RREC. It is active since the breaker is open by a trip until a
successful reclosing or recloser blocked or the activation of the “f restoration
reset input” (Figure 125).
Successful Reclosing F_RREC. Indicates a Successful reclosing (Figure 123). The
safety time after closing has finished and the breaker has not open, there is no
trip and the “f restoration reset input” is desactivated.
Reclosing in Safety time F_RREC. After a reclosing, the safety time is ongoing
before the recloser goes to standby or Finally Interlock (Figure 123).
Finally Interlock Cycle F_RREC. Indicates the breaker is open or a trip has
happened during the safety time (Figure 123).
Interlock clousure failure F_RREC. Indicates the recloser is in internal block,
caused by a close failure (breaker supervision). See Figure 123.
Interlock opening failure F_RREC. . Indicates the recloser is in internal block,
caused by an open failure (breaker supervision). See Figure 120.
Interlock absence reset cond. F_RREC. After the breaker opening, the recloser is
waitng during the “Reset maximum time (s)” that the reposition conditions are
met. If the maximum time is enabled, when the time finishs without close
command, the recloser is blocked by absence reset conditions. See Figure 122.
Permission reclosing F_RREC. Indicates the reposition conditions are met (Figure
121).
Reclosing Command F_RREC. Close command after all the setting conditions are met
(Figure 121).
Reclosing Blocked F_RREC. Indicates the recloser is blocked by setting, internal
or external causes (Figure 124).
Final Trip F_RREC. Definitive trip when the recloser is blocked by absence of
reposition conditions, end of cycle or close failure (Figure 124).
Close Blocked F_RREC. Activated during the closure time (Figure 122).
6. FAULT LOCATOR
The fault locator for single and double lines processes the information collected in relation
to each fault and calculates the estimated distance to the point in which the fault has
occurred, as well as the fault resistance.
The initial data necessary in order to arrive at the final calculation is:
Sample by sample values of the voltage and current signals collected in the moment in
which the fault is produced.
The impedance parameters of the line in which the fault has occurred.
Length of the line.
The Voltage transformers and Current transformers transformation ratios of the bay that
captured the fault.
The result is the distance to the fault in km, together with fault resistance and a locator
exit code.
The settings necessary for the operation of the distance calculation algorithm are as follows
(see Table 122):
Locator output permanent. Indicates whether the distance measurement is maintained until
the next fault (set to “YES”) or only the seconds indicated in the “Locator output
duration(s)” setting (set to “NO”).
Locator output duration(s). Distance measurement maintenance time (s).
Line type. Allows the user to select between single line or double line.
Z0M Mutual(Ohm p.u.length). Mutual impedance module, by unit length. This setting only
applies when the relay is set to double lines.
Z0M Mutual angle (º). Mutual impedance angle. This setting only applies when the relay is
set to double lines.
Filter enabled. If set to “YES” and if the fault point is detected during the ten cycles
following a breaker closure, the neutral current is checked to see whether is exceeds the
“I Minimum after close (A)” setting. If it is, inrush is considered to exist and prefault
current values equal to zero are employed in order to avoid the inrush distortion in
these measurements. The neutral current is also checked to see whether itexceeds the
“Ground maximum current (A)” setting. If it is set to “NO”, neither the inrush nor the
neutral current are measured.
I Minimum after close (A). Current threshold (in primary value) for the detection of
inrush. Only used if the filter setting is enabled. If a switch on to fault is detected
(by the status of the breaker) during the first 10 cycles, single – phase ground faults
that do not go beyond the INmin threshold are blocked. If it is set to 4999A all the
faults (single – phase and polyphase) are blocked. A possible use is when there is a
great distortion in the shape of a wave after a closing. For example, in the case of a
distribution with a lot of transformers hanging from the line, the breaker closing will
cause a high inrush that can make the low current earth faults calculation results
distorted. With the I0min threshold the earth fault calculation is filtered, the I0of
which must be lower than this threshold.
Ground maximum current (A). Threshold (in primary value) indicating the system’s maximum
neutral current under normal conditions. Only used if the filter setting is enabled.
Ohm p.u indicates ohms per unit of length. For a line length of 100 km and a line impedance
of 100 ohm, the setting in ohm p.u is calculated as follows:
Ohm p.u = Line impedance / line length = 100 ohm /100km = 1 ohm p.u,
If the impedances are available in secondary values, these can be converted to primary
values with the following formula:
PROT/RFLO node
Settings: There are 6 settings tables. For details see Table 116.
Admittances (Y1,Y0): 0
Module: 20000
Argument: 45º
Module: 20000
Argument: 45º
Sensitivities:
The process that follows the locator’s algorithm can be summarized in 4 steps, which are
explained below:
The collected signals are processed by a digital filter which provides the fundamental
voltage and current components. A cosine filter is used for this stage.
The locator includes an algorithm that determines which phases have been affected by the
fault. The algorithm is based on the well-known Girgis method for distance relays. This
procedure, which analyzes the different magnitudes of change between the pre-fault and
post-fault situations in the current’s fundamental component, has demonstrated enviable
precision in its results.
When a fault happens in a line corresponding to our relay, the information gathered by
the locator, placed at one extreme of the line, is reduced to the voltage and current
values.
The data necessary to fully determine the system are obtained from the situation existing
in the instant immediately preceding the fault and in the situation of the fault itself.
In these situations, the protection locates the fault but indicates that the “Ground
maximum current (A)” setting has been exceeded, as in these situations the voltages
are distorted by the lack of the adjacent line fault and can cause erroneous
calculations in the fault distance.
This mode is only operative if the “Filter enabled” setting is active. In this case,
the result of the localization will be displayed in the fault report, although in the
control measurements it will be reported as invalid.
The location algorithm does not have sufficient pre-fault cycles and therefore considers
that the fault sample is in the cycle in which the digital pick up was produced.
Furthermore, the neutral current in the system has exceeded the current value set in the
“Ground maximum current (A)” setting (this check is only carried out when the “Filter
enabled” setting is set to “YES”). By exceeding this value, the distance calculation may be
erroneous. Therefore, although it is shown in the fault report it is marked as an invalid
control measure. Finally, the distance calculation has returned a value in excess of the
value established in the “Line length” setting. If this result is between 100% and 150% of
the line length, it will be displayed. If it is greater, the distance will appear as NOT
CALCULATED.
The distanceis always calculated but it will not be sent to the dispatching centre (61850
nor Procome) if one of the blockingscodes of the locatoris activated. In the fault report,
the distance is always included with thelocator exit code.
Not enough cycles (< 2.5 cycles). In this case, no calculation is done.
Ineutral is below the setting “I Minimum after close (A)” (resistive or distant
fault). In this case the calculation is done, but it is not sent to the
dispatching centre.
Ineutral is above the setting “Ground maximum current (A)” (possible cross country
fault). In this case the calculation is done, but it is not sent to the
dispatching centre.
General block by switch onto fault. In this case the calculation is done, but it
is not sent to the dispatching centre.
Capacity values of the positive, negative and zero sequences are zero, so that these values
do not affect the reach.
Line parameters
Impedance: 6 Ω
Angle: 84.2º
For a line with the features described above, fault locator could be adjusted as follows:
Ajuste Valor
Enabled YES
Line length 20
Z1 Imp. (ohm p.u. length) 0.314
Z1 angle (º) 84.2
Z0 Imp. (ohm p.u. length) 0.81
Z0 angle (º) 70.6
Y1 (1/ohm p.u. length)*10e-9 0
Y0 (1/ohm p.u. length)*10e-9 0
Z1 Local Source (ohm) 6
Z1 Local Source Angle.(º) 84.2
Z1 Remote Source (ohm) 20000
Z1 Remote Source Angle (º) 45
Z1eq Parallel (ohm) 20000
Z1eq Parallel Angle. (º) 45
Phase Current sensitivity (A) 40% PhaseOverCurr.Setting * CT
Ground Current sensitivity (A) 40% GroundOverCurr.Setting* GCT
Voltage sensitivity (V) 5% Vrated * VT
Locator output duration(s) 7200
Locator output permanent YES
Line type Simple
Filter enabled NO
EnableEvents Record YES
where:
7. MONITORING
This function checks if the external supply voltage is within the set range. It generates
two signals:
Auxiliary power supply greater than maximum threshold. If the supply voltage
exceeds the set maximum threshold.
Auxiliary power supply lower than minimum threshold. If the supply voltage is below
the set minimum threshold.
The settings for configuring the external power supply monitoring (Table 123):
PROT/CESS1 node
Settings. There are 6 settings tables. For details see Table 123.
There are no logical inputs or commands
Outputs: Table 124 shows the function’s output data.
Enabled. It is active when enabled and not blocked.
Power supply greater than maximum threshold. Indicates that the power supply has
exceeded the maximum threshold.
Power supply lower than minimum threshold. Indicates that the power supply is
below the minimum threshold.
This function checks if the temperature is within the set range. It generates two signals:
Temperature greater than maximum threshold. If the temperature exceeds the set
maximum threshold.
Temperature lower than minimum threshold. If the temperature is below the set
minimum threshold.
The settings for configuring the external power supply monitoring (Table 123):
PROT/CTSU1 node
Settings. There are 6 settings tables. For details see Table 125.
There are no logical inputs or commands
Outputs: Table 126 shows the function’s output data.
Enabled. It is active when enabled and not blocked.
Temperature greater than maximum threshold. Indicates that the temperature has
exceeded the maximum threshold.
Temperature lower than minimum threshold. Indicates that the temperature is
below the minimum threshold.
If enabled, it checks that the external power supply exceeds the battery failure threshold,
generating an alarm signal when it is below the threshold.
The settings for configuring the battery failure monitoring (Table 127)
PROT/CSUS1 node
Settings. There are 6 settings tables. See Table 127.
There are no logical inputs or commands
Outputs: Table 128 shows the function’s output data.
Enabled. It is active when enabled and not blocked.
Low power supply (DFFA). Indicates that the external power supply is below the
minimum threshold.
Table 128 Battery failure monitoring outputs
The internal battery used for data maintenance is checked to ensure that it does not fall
below a security level.
GEN/LPHD1 node
It does not use settings.
There are no logical inputs or commands.
Outputs: Table 129 shows the function’s output data.
Internal battery failure. Indicates that the internal battery level is below the
minimum threshold.
Table 129 Internal battery failure outputs
Colour front LED. Non-configurable status LED, which indicates the unit’s general
status. If the LED is green, it indicates that everything is correct, while if it
is red it indicates a critical error in the unit.
CPU Relay. Non-configurable 3-contact relay, which indicates the unit’s general
status. If the LED is active (common terminal – NO), it indicates that everything
Internal battery failure. Indicates that the data storage battery is below the
security levels and that the data may be lost at shutdown.
Version compatibility error. Indicates that the versions of the unit's firmware are
not correct.
Time setting configuration alarm. Indicates that there is an error in the
configuration of the unit’s time setting.
For each I/O card there is are 5 signals, indicating:
Status OK. Indicates that the card is configured correctly and without errors.
Configured & No_detected. Indicates that the card is configured by the user, but
not detected in the unit. This may be because it is not assembled or because it
has an error. Equivalent to the current communication error.
Different configuration. The type indicated by the user and the type detected by
the unit do not coincide.
No_configured & detected. Indicates that card that has not been configured by
the user has been detected in an address.
Internal card error. A card check error has been received (includes relay
check).
ICD error. Indicates the last ICD received by the device was wrong and it was
refused by the device. Once activated, this signal is deactivated when a correct
ICD is received.
Table 130 Checking signals
8. CONFIGURATION
8.1 CID
Independently of the form used from among those listed above, the changes to the affected
setting are stored in the unit’s CID file. When any setting is changed, the NamPlt field
in the node in which the new setting has been written, as well as the LLN0 node of the
device to which the node belongs, are updated in the CID file.
Origin of settings
paramRev text origin
change
MMS IEC 61850 client BROWSER IP
Local display USER DISPLAY
pacFactory USER TOOL
New CID CID UPDATE
In the case of “New CID”, only those settings in the CID sent to the unit and which are
out of range will be updated in paramRev.
8.2 GENERAL
Two nodes are used for the general configuration of the unit
The settings available in the GEN/LLN0 node are shown in protection events mask enablind.
Allows the generation of protection events associated to the function. If set to "NO", the
function's protection events are not generated. If set to "YES", the function's specific
mask is contemplated:
Language. Indicates the unit’s language. Affects the display, reports, etc.
Functional key block
Command key block
Remote functional key mode
LED block. Allows the activation of the LEDs to be blocked.
Blocks from commands
IRIG B format. Select whether the year is taken into account in the synchronization
by IRIG. The options are:
“B002”. The year is not taken into account.
“B002 IEEE 1344”. The year is taken into account.
Local/remote mode change
Queue deletion logical input. Indicates the logic input that, when activated,
deletes the unit’s report queues. Affects protection events, faults, disturbance
reports, historical measurement reports, etc.
CID load mode
CID validation type
Remote/ Local type. It indicates how the unit will behave when it has to block the
commands it is sent. See 15.2.1
Flicker Enable. Enables the digital inputs’ swing supervising function.See 8.4.3
Protection events mask enabled. Allows the generation of protection events
associated to the function. If set to “NO”, the function’s protection events are
not generated. If set to “YES”, the function’s specific mask is contemplated.
The settings available in the PROT/LLN0 node are shown in protection events mask enablind.
Allows the generation of protection events associated to the function. If set to "NO", the
function's protection events are not generated. If set to "YES", the function's specific
mask is contemplated:
Relay ON. Indicates whether the relay in service or not. If it is out of service,
the protection functions do not act.
Phase order. Selects the phase sequence ABC/CBA. Affects the direct and inverse
sequences and, therefore, the functions that use them. To check whether the order
corresponds to wiring, check that the values expected for the indicated
configuration are obtained in the sequence measurements and that the phase current
arguments (as seen in the status screen) match selected sequence.
Select Setting group 1. Indicates the logic input which, when activated, selects
the settings table 1 as active.
Select Setting group 2. Indicates the logic input which, when activated, selects
the settings table 2 as active.
Select Setting group 3. Indicates the logic input which, when activated, selects
the settings table 3 as active.
Select Setting group 4. Indicates the logic input which, when activated, selects
the settings table 4 as active.
Select Setting group 5. Indicates the logic input which, when activated, selects
the settings table 5 as active.
Select Setting group 6. Indicates the logic input which, when activated, selects
the settings table 6 as active.
Fault reports (Prim./sec.). Select the measurements of the display fault reports
between primary and secondary.
Enable Events record. Allows the generation of protection events associated to the
function. If set to “NO”, the function’s protection events are not generated. If
set to “YES”, the function’s specific mask is contemplated.
The current and voltage transformers are configured in independent nodes, in which the
units’ rated values, transformation ratios and frequencies are indicated.
8.3.1 Current
Two PROT/TCTR nodes are used for the transformation ratios and PROT/TCIN for rated
currents.
The settings used for the configuration of the current transformers ratios, which are
used to provide primary measurements, are (see Table 133):
Change sign P. Indicates if the sign change in the real power calculation is
enabled.
Change sign Q. Indicates if the sign change in the reactive calculation is
enabled.
Real energy constant. Indicates the real energy impulse factor, i.e., the
number of kWh by virtue of which the counter is incremented by one unit.
Reactive energy constant. Indicates the reactive energy impulse factor, i.e.,
the number of kWh by virtue of which the counter is incremented by one unit.
The energy counters value is available in the PROT/MMTR node, with the data:
8.4 INPUTS/OUTPUTS
The unit can host a variable number of input-output cards variable (from 1 to 7). Each card
is configured with an internal address from 2 to 7. The power supply is assigned address 1,
which is not configurable.
Each card is represented in the IEC 61850 data model as an instance of the GGIO node in the
Logical Device called “GEN”. Each GGIO has the internal address of the physical card as an
instance. Thus, for example, if a unit has two input-output cards with internal addresses 1
and 4, the GEN/GGIO1 and GEN/GGIO4 nodes will exist in the data model.
The number of digital input settings and signals present in each GGIO depends on the type
of card used. Continuing the example, if the card with the internal address 1 has 6 digital
inputs and 4 digital outputs, the GGIO1 node will have 6 digital input signals and 4
digital output signals, as well as the settings corresponding to each digital input and
output available.
The data model associated to the GGIOs is common to all and has 32 digital inputs and 16
digital outputs. Nevertheless, in each card only the data associated with its own inputs
and outputs are updated.
For each GGIO there is a boolean setting called MaskEna (event record enabled). If set to
“YES”, the activation/deactivation of the digital inputs and outputs will generate
protection events. To the contrary, they will not be stored as event records.
8.4.1 Inputs
There are 2 settings available for each digital input:
DIxTmms: Digital input time x (ms). This is a software filter for the
activation/deactivation of digital inputs. It indicates the milliseconds (range 0
to 20 ms) which a digital input must be seen to be active in order to be considered
active. In order to calculate an input's total activation time, the input’s
hardware filter delay – which is approximately 1ms – must be added to this time.
DIxType: Digital input type x. Defines whether the input is to be interpreted as
active when it is seen as closed (NO) or when it is seen as open (NC)
Each digital input has an associated digital signal indicating its status (see Table
137). Each GGIO indicates the status of all its digital inputs (up to 32).
Table 137 Digital input signals
8.4.2 Outputs
There are 3 settings available for each digital output:
DOxSig: Assignment digital output x. Assigns the activation of the digital output.
There are several assignment possibilities:
Signals: They can be signals generated by the unit (trips, logics, hw
check, digital inputs and outputs)
Commands: All of the commands available in the unit can be directly
programmed to a physical output
DOxTmms: Digital output time x (ms). The output activation time defines the minimum
operational time of each physical output following activation (in milliseconds).
The range is 0.05 to 5000 ms. The output remains active in accordance with this
time setting or the duration of the associated signal, whichever is greater.
DOxTyp: Digital output type. Each output’s type is defined from among the options:
“Not”. The output follows the assigned signal, i.e., the output is activate
when the signal is active. When the signal is deactivated, the output will
deactivate if the digital output time has elapsed. To the contrary, the
output will remain active until this time elapses.
“Stored”. Once activated, the output remains active until the relay
deactivation command is issued, with the signal assigned to the output
deactivated. The command can be issued by the action of a digital input
programmed as “Local reset”, a command or by keyboard/display.
“Trip”. Once activated, the output remains active until the following
conditions are met: the signal assigned to the output is deactivated and
the breaker is open.
“Close”. Once activated, the output remains active until the following
conditions are met: the signal assigned to the output is deactivated and
the breaker is closed.
Each digital input has an associated digital signal indicating its status (see Table
139Table 139). Each GGIO indicates the status of all its digital outputs (up to 16).
The supervising of the swing in the digital inputs or the supervising of the flicker is
conducted in accordance with certain user-configurable settings.
On the one hand, there is a general setting that allows this function to be enabled or
disabled. If this setting is disabled, not flicker treatment is performed.
General setting for the configuration of the flicker treatment (Table 140):
GEN/LLN0 node
Once the general flicker setting has been enabled (Table 140), there are two more
setting per card for treating the swing. They are “OscTms” and “Nchanges”
which can be seen in Table 138:
OscTms: The time between changes in the same direction in order for a signal to be
deemed to be swinging. When a signal is swinging a swinging signal is produced. The
unit is seconds.
Nchanges: The number of changes that must be produced in a swinging signal in order
for the signal to become invalid and cease from sending changes. If this setting is
set to zero, it disables the swing treatment for this card, i.e., the flicker
treatment is not performed for this card.
GEN/GGIOx node, in which x depends on the card’s internal address (see section 8.4)
Once a signal has been detected as swinging, it becomes questionable and oscillatory.
If this situation continues and the number of set changes (“Nchanges” setting) is exceed,
the signal becomes invalid and oscillatory. It ceases to send the changes and sends the
signal's last known valid status.
When the time difference between two changes is greater than the inputs’ swing time
(“OscTms” setting), the signal changes to valid.
8.5 LEDS
LexSig: Assignment led x. Assigns the activation of LED x using any of the
signals generated by the unit
LExTyp: LED type x. It can be programmed as “not” and “stored”. In the first
case, the activation of the LED follows the activation of the signal
programmed in the setting described above. If it is programmed as “stored”,
the LED’s activation will remain even if the signal that provoked its
activation drops out, until the signal programmed in the LogInReLed setting
available in the IHMI node is activated.
There is a general setting for all the LEDs that indicates the logic signal used to
switch of the LEDs:
LED reset. Selects the signal which, when active, switches off the LEDs.
The LEDs are updated every 200ms. Thus, for the correct activation of the LEDs, the
assigned signal must remain active for at least 150 ms. To the contrary, the LED cannot
be activated.
Table 141 LED settings
InRefx: Assignment led x. Assigns the activation of LED x using any of the
signals generated by the unit. The assignment is carried out by means of a
character string (see next section “Configuration with InRef”)
LEDSex: LED type x. It can be programmed as “not” and “stored”. In the first
case, the activation of the LED follows the activation of the signal
programmed in the setting described above. If it is programmed as “stored”,
the LED’s activation will remain even if the signal that provoked its
activation drops out, until the signal programmed in the LogInReLed setting
available in the GEN/IHMI node (defined in the previous section) is activated.
The InRef type settings are programmed by a string of characters in which the reference of
the IEC 61850 object containing the value to be employed as an input is indicated. The
following format, as defined in the part 7.2 of the IEC 61850 standard, is employed:
LDName/LNName.DataObjectName[.SubDataObjectName[. ...]].DataAttributeName
For example,
In order to program InRef1 with the GGIO1 input signal 1, the reference to be
written in the InRef is:
GEN/GGIO1.Ind1.stVal
In order to program the PTOC 1 phase A trip, the reference is:
PROT/PTOC1.Op.phsA
8.7 NAMES
The PROT/LPHD node is used for the general configuration of the units’ names and the
installation.
Short names are used for the generation of the disturbance recorder and fault file names.
The InRef type settings are programmed by a string of characters in which the reference of
the IEC 61850 object containing the value to be employed as an input is indicated. The
following format, as defined in the part 7.2 of the IEC 61850 standard, is employed:
LDName/LNName.DataObjectName[.SubDataObjectName[. ...]].DataAttributeName
For example,
In order to program InRef1 with the GGIO1 input signal 1, the reference to be
written in the InRef is:
GEN/GGIO1.Ind1.stVal
In order to program the PTOC 1 phase A trip, the reference is:
PROT/PTOC1.Op.phsA
9. SYNCHRONIZATION
9.2 SETTINGS
The unit’s data model has a GEN/LTIM node for the configuring the summer/winter time
change. The node has the following settings (see Table 143):
Offset Local Time-UTC (min): Offset Local Time-UTC (min). A setting that indicates
the number of minutes by which the time setting must be put forward/put back when
changing between summer/winter time. Range between -720 and 720 minutes (-12 to +
12 hours)
Summer-winter time change enabled: Time change enabled. A boolean setting that
allows the time setting to be changed
Summer Calendar Pattern: Summer Calendar Pattern. Three selectable values:
Last of month: Last week, refers to the weekday set in WkDayD
First of month: First week, refers to the weekday set in WkDayD
Second of month: Second week, refers to the weekday set in WkDayD
Third of month: Third week, refers to the weekday set in WkDayD
Fourth of month: Fourth week, refers to the weekday set in WkDayD
Day of month: Selects the day of the month indicated in DayD
Day Week Summer: Indicates the day of the week for the change to summer time
(Monday.. Sunday)
Month Summer: Indicates the month in which the change to summer time occurs
(January.. December)
Day Summer: Indicates the day in which the change to summer time occurs (1.. 31)
Time Summer: Indicates the time at which the time changes to summer time
Minute Summer: Indicates the minute (within the time set on HrD) when the time
changes to summer time
Winter Calendar Pattern: Winter Calendar Pattern. Equivalent to OccD but from
winter to summer
Day Week Winter: Indicates the day of the week for the change to winter time
(Monday.. Sunday)
Month Winter: Indicates the month in which the change to winter time occurs
(January.. December)
Day Winter: Indicates the day in which the change to winter time occurs (1.. 31)
Time Winter: Indicates the time at which the time changes to winter time
Minute Winter: Indicates the minute (within the time set on HrS) when the time
changes to winter time
The status report indicates the current status of the protection, showing instantaneous
values. This report is updated approximately every 1 second.
Last trip. Indicated within <l>. “Y” is used to indicate if the last trip was
due to this cause, whilst "N" is used to indicate otherwise.
Recloser status: Indicates the current status of the recloser. The signals are in
<RREC1>. “Y” is used to indicate active signals, whereas "N" is used to indicate
inactive signals. The available signals and their references are indicated in the
recloser section. These include:
in service/blocked
in stand-by
ongoing cycle, indicating the closure cycle that is currently active.
definitive trip.
internal block, distinguishing different causes.
External block.
“Put Into Service and “Put Out of Service” buttons
Frequency recloser status: Indicates the current status of the frequency recloser.
The signals are in <FRREC1>. “Y” is used to indicate active signals, whereas "N"
is used to indicate inactive signals. The available signals and their references
are indicated in the frequency recloser section.
Synchronism check unit status. The general status of the synchronism is displayed
in RSYN1 and the presence of voltage in RVRS1. “Y” is used indicated active
signals and "N" for inactive signals. The available signals and their references
are indicated in the synchronism section.
Protection status. With the “PROT” data in LLN0, “Y” indicates whether the relay
is in service, “N” indicates if the relay is out of service.
General status. Indicated in LLN0 with the “GEN” data, in which the following is
indicated:
Unit hw status. Indicating if there is failure "Y" or "N".
Local/remote mode. Indicating if it is local, "Y" or "N".
Events pending dispatch. Indicating if there is an event pending dispatch, "Y"
or "N".
Failure in IRIG synchronization. Indicating if there is failure, "Y" or "N".
V2 and Vn voltage monitoring. Indicating if there is failure, "Y" or "N".
Check on internal communication between cards. Indicating if there is failure,
"Y" or "N".
Open pole logic status. Shown in POPD1, indicating:
StEna.stVal. Indicates whether the function is enabled, “Y” or “N”.
OpenPole. For each pole and general, indicating whether open “Y” or closed “N”
Number of open poles. One (OneOpPole), two (TwoOpPole), three (ThreeOpPol) or at
least one (OpenPole)
Broken conductor. Indicating whether the phase is broken for each of the poles,
“Y” or “N”.
Deal line. Indicating whether there is a dead line for each of the poles, “Y” or
“N”.
Breaker status. Shown in XCBR, indicating:
BrDISt. For each pole and general, the status of the associated digital input:
closed “Y”, open “N”.
CloseOrdBr. For each pole and general, the status of the closure command: active
“Y”, inactive “N”.
OpenOrdBr. For each pole and general, the status of the opening command: active
“Y”, inactive “N”.
ClsFailBr. For each pole and general, indicating whether there has been a
failure in the closure command, “Y” or “N”
OpenFailBr. For each pole and general, indicating whether there has been a
failure in the opening command, “Y” or “N”
Breaker monitoring status. Shown in CBOU1, indicating the value of the ki2 sum for
each pole.
Monitoring units.
CCTS1. CT monitoring. There is function enabled data (StEna.stVal) and CT
monitoring activation data (CTSpv.general)
CTSU1. Temperature monitoring. There is a function enabling data (StEna.stVal)
and an indication of the temperature above (OverTemp) and below (UnderTemp) the
threshold.
CESS1. External power supply monitoring. Indication of external power supply
above (OverVcc) or below (UnderVcc) the threshold. Also indicates whether the
function is enabled or not (StEna.stVal).
CSUS1. Indicates battery failure status (DFFA), if it is activated “Y" or
deactivated “N”.
The status data are displayed on the PacFactory console and in the unit's display:
This report indicates the measurement transformers’ primary measurements, applying the
transformer ratio. The maximeter information is used for the maximeter reports.
Distance. In the <Distance> tag, indicating the distance of the last fault.
Currents. Within the <Currents> tag, showing the rms current measurements in
primary:
Earth-phase.
The module and angle of each phase, neutral and sensitive neutral.
The average current module of the three phases.
THD of each phase, neutral and sensitive neutral.
Thermal image <Thermal>. Value of phase and neutral thermal image.
Sequences <Sequence>. Current sequences module (I0, I1, I2)
Voltages Within the <Voltage> tag, showing the rms voltage measurements in
primary:
Earth-phase.
The module and angle of each phase and neutral.
The average voltage module of the three phases.
THD of each phase and neutral.
Phase-phase <Phase>.
Phase pair module (AB, BC and CA) and average.
Sequences. Voltage sequences module (V0, V1, V2)
The fault reports include information about the unit’s data during the fault, as well as
the active settings during the fault. The last 20 faults are stored in a non-volatile
memory.
The name of the file uses the standard IEEE C37.232-2007, using the fields:
Start Date, Start Time, Time Code, Station Identifier, Device Identifier, Company Name
Start Date: Trip date with a 2-character format for the year, the month and the
day. For example, 26/june/2010 would be 100626.
Start Time: Indicates the milliseconds as of 00:00 of the day, that is,
milliseconds as of midnight.
Time Code: Indicates the time zone amplitude sign, and can indicate minutes if
necessary. For example, “t +2” indicates time zone 2, while “+2 h30t” indicates
that the time zone is 2 hours 30 minutes.
Station Identifier. Indicates the substation name. The installation’s short name
(InsShNam) from the “PROT/LPHD1” node is used"
Device Identifier. Indicates the unit’s name. The relay’s short name (RelShNam)
from the “PROT/LPHD1” node is used"
Company Name. Indicates the name of unit’s manufacturer, in this case, Ingeteam.
The information available in the fault is :
Date and time: <Fecha>. Indicates the date as a string in the “dd/mm/yy
hh:mm:ss.ms” format, i.e., “23/04/09 10_41_30_256”. There are three dates
available
Start of the fault (first unit picked up): <Inicio>
Trip (first unit tripped): <Disparo>.
End of fault (when the trip signal disappears): <Fin>
Configuration: <Config>. Indicates the configuration of each of the 12
transformers: type and scale range.
Pre-fault and fault. Indicates the values measured before the fault and upon the
fault. They are grouped into “Pre-fault” and “Fault”, and the same data is
available in both cases:
Transformer measurements <Analog>. It indicates the measurement in the module
and the angle of each transformer.
Sequences. Indicates the measurements in the module and the angle of the current
sequences (I0, I1 and I2) and the voltage (V0, V1 and V2).
Powers. Indicates the measurements of the total real, reactive and apparent
powers.
Distance to fault.
Frequency in the moment of the fault.
Thermal image upon trip. The thermal image is indicated as a % of phases and
neutral.
Breaker. Indicates breaker monitoring data upon the fault.
Open current. For each phase, indicates the current value upon the trip.
Sigma ki. For each phase, indicates the sigma ki2 value.
Fault and trip type <Tipo/Type>: Summary of the fault with the 3-letter code
formed by combinations of the characters A, B, C, N, NS and G (if tripped by a
phase, neutral, sensitive neutral or ground), RTP (teleprotection), IF (phase
overcurrent), IN (neutral overcurrent), D (current unbalance), VO (zero-sequence
overvoltage), HV (overvoltage), LV (undervoltage), RTP (teleprotection), DT
(transferred trip), DP (pole discordance), IT (thermal image). Example: AC is a
two-phase fault in phases A and C.
Fault type: Indicates the pick up type.
Trip type: Indicates the trip type.
Details of units. Indicates the picked up and tripped units. Indicates whether the
unit is active “Y” or not “N” for each logical node available in the unit.
Pick up. Indicates in <Str> whether the unit is picked up “Y” or not “N”. The
data depends on the unit, for example, for phase A it would be Str.phsA.
Activation. Indicates in <Op> whether the unit is tripped “Y” or not “N”. The
data depends on the unit, for example, for phase A it would be Str.phsA.
Active settings. Active settings in the moment of the fault. Indicates the setting
file name. It can be accessed to consult the settings.
Figure 129 PacFactory fault screen
The protection events can be masked individually, so that only protection events configured
by the user are generated. These enablings are available in the GEN/RSUC node.
<Med>
<FRE Hz="50.00"/>
</Med>
</Reg>
The unit saves a queue of 4000 historical measurement reports the non-volatile memory.
Each record includes the maximum and minimum average currents, the maximum and minimum
average phase to earth voltages and the maximum and minimum real, reactive and apparent
power (calculated within a programmable time window) detected during a programmable
recording period. The measurements are secondary.
The historical measurement report is grouped into records in which the first corresponds to
the oldest and the last to most recent, so that when the file is opened, the first item we
see is the oldest.
</REG>
Sample time window. Indicates the time in minutes during which the average is
calculated
Record interval. Indicates the time in minutes in which each record is created
Start time. Indicates the time after which the historical measurement record is
started
End time. Indicating the time up to which the historical measurements record is
carried out
Calendar mask. Indicates whether the historical measurements record is created
every day (YES) or if it is only created on the days indicated in the day
selection mask.
Day selection. It indicated, for each day of the week, whether the record was
created.
Table 145 Historical measurement settings
Displays the statistical data calculated in the unit: currents, action times and counters.
It has reset buttons.
The current statistics are grouped in the <Current> tag and include:
<ki2> Ki2 accumulated by each of the 3 phases. Each phase can be independently
reset to the initial value.
<Cut> Opened current. Indicates the last (Last) and maximum (Maximum) open
current per phase
<Time> Indicates the time in seconds during which the current has been within
specific ranges.
From 2 to 5 times In
From 5 to 12.5 times In
From 12.5 to 20 times In
From 20 to 40 times In
The counters are grouped in the <Counters> tag and include:
<Reclose> Reclosure counter. Indicates the number of reclosures effected,
separating them according to first, second, third and fourth reclosure. There is
a command for resetting the counter.
<Openings>. Opening counter for each of the 3 phases, includes trips and manual
openings. There are commands for resetting each phase's counter and a global
counter for all the phases.
<Trip>. Trip counter for each of the 3 phases. There are commands for resetting
each phase's counter and a global counter for all the phases.
<Close>. Closure counter for each of the 3 phases. There are commands for
resetting each phase's counter and a global counter for all the phases.
The timers are grouped in the <Timers> tag and include:
<Opening>. Indicates the electric (Electrical) and mechanical (Mechanical)
opening times in milliseconds per phase and the dispersion for each pair of
phases.
<Close>. Indicates the electric (Electrical) and mechanical (Mechanical) closure
times in milliseconds per phase and the dispersion for each pair of phases.
<Inactivity> Indicates the days of breaker inactivity for each phase.
Displays the maximum and minimum values integrated in the time. It has buttons to
individually reset the maximeters and/or minimeters.
10.8 OSCILLOGRAPHY
The oscillography is stored in binary comtrade format. There is a CFG config file and a DAT
data file for each.
For additional information see on “IEEE Standard Common Format for Transient Data Exchange
(COMTRADE) for Power Systems”.
The trigger signals are selected among the registered signals, when the set “Trigger
Signal” is set to “YES”. If it is set to “NO”, that signal is registered but does not start
the oscillography.
The length is set in cycles (Total Duration), from 20 up to 420 cycles (8,4 seconds for
50Hz and 7 seconds for 60Hz).
The number of samples can be selected among 16, 24, 36, 48, 72 or 144.
The continuous mode allows increasing the length if at the end of the register, there is a
trigger signal activated. In that case, the register continues the number of cycles set in
the “Total Duration”, checking again the trigger signals at the end of the new register.
The total register is limited to 5Mb or 3 times the setting “Total Duration” (the most
restrictive of both).
To increase the length, the trigger signal has to change the status, that is, it has to
pass from deactivated to activated. If one trigger signal is continuously activated, it
does not start, nor extend the oscillography register.
The digital signals set to “NO” are displayed, but do not start, nor extend the
oscillography register.
The oscillography allows to display signals that do not start the register. For example,
the protection trip signal can inicialize an oscillography register, where the start
signals are displayed. Table 146 shows an example of an oscillography configuration, with
11 digital signals registered but only three signals start the register (General trip, 51
trip and GGIO1Digital input 1). At the end of the register, if one of these three signals,
continues activated, the oscillography is extended the cycles set in “Total Duration”;
otherwise the oscillography is finished.
Table 146 Oscillography configuration example
Ajustes Valor
Recorded signal 01 General trip
Trigger Signal 01 YES
Recorded signal 02 General start
Trigger Signal 02 NO
Recorded signal 03 51 start
Trigger Signal 03 NO
Recorded signal 04 51 trip
Trigger Signal 04 YES
Señal registrada oscilo 05 IOC1 Trip phase A
Trigger Signal 05 NO
Recorded signal 06 IOC1 Trip phase B
Trigger Signal 06 NO
Recorded signal 07 IOC1 Trip phase C
Trigger Signal 07 NO
Recorded signal 08 IOC1 Start phase A
Trigger Signal 08 NO
Recorded signal 09 IOC1 Start phase B
Trigger Signal 09 NO
Recorded signal 10 IOC1 Start phase C
Trigger Signal 10 NO
Recorded signal 11 GGIO1Digital input 1
Trigger Signal 11 YES
10Mb of non volatile memory is available to store oscillography registers. The total number
of registers depends on the settings. Table 147 shows some examples of the capacity (with
the continuous mode set to “NO”), where the most influential settings are the length and
the number of samples.
Total
Number of Number of digital
Duration Number of oscillographys
samples/cycle signals
(cycles)
420 144 100 3
420 144 32 3
420 36 100 13
420 36 32 15
50 144 100 27
50 144 32 32
50 36 100 98
50 36 32 121
20 144 100 34
20 144 32 78
20 36 100 206
20 36 32 271
20 16 100 350
20 16 32 499
Total Duration (cycles). Indicates the total duration of disturbance recorder (in
cycles).
Pre-fault duration (cycles). Indicates the pre-fault cycles that are stored in
each disturbance recorder
Number of samples/cycle. Indicates the samples per cycle stored in the disturbance
recorder.
Recorded signal X. Indicates the signal that is stored in record position X. If
programmed as -1, no signals are recorded.
Trigger X signal. If the signal is configured, it indicates whether it provokes a
disturbance recorder pick up (1) or not (0). If set to “No”, it is only displayed.
The trigger and recorded signals are repeated up to 100 possible signals.
Table 148 Oscillography settings
Min
Data Setting Max Step Remarks Type
.
OscCyc Total Duration (cycles) 20 420 1 cycles Int32
PreCyc Prefault duration (cycles) 1 415 1 cycles Int32
NuSaCy Number of samples/cycle enum
OscReg1 Recorded signal 1 Int32
OscTrg1 Trigger 1 signal 0 1 1 YES/NO Boolean
OscReg2 Recorded signal 2 Int32
OscTrg2 Trigger 2 signal 0 1 1 YES/NO Boolean
Recorded signal and trigger
0 1 1 YES/NO Boolean
up to 100
The disturbance record configuration file (CFG) contains the general disturbance recorder
information (Figure 135):
Total number of analogue and digital channels available in the disturbance recorder.
Analogue channel data: bay, identification, measurements scaled and limits.
Digital input data: bay and identification.
Sample data: signal frequency, sampling frequency, number of the last sample.
Disturbance recorder start and end dates.
Data file format
The disturbance recorder data file (DAT) includes the information captured in the disturbance
recorder, with the following available for each sample:
Sample number
Sample time
Analogue samples values
Digital signals values
The name of the file uses the standard IEEE C37.232-2007, using the fields:
Start Date, Start Time, Time Code, Station Identifier, Device Identifier, Company Name
Start Date: Trip date with a 4-character format for the year, the month and the
day. For example, 26/june/2010 would be 20100626.
Start Time: Indicates the milliseconds since 00:00 of the day, that is,
milliseconds since midnight.
Time Code: Indicates the time zone amplitude sign, and can indicate minutes if
necessary. For example, “t +2” indicates time zone 2, while “+2 h30t” indicates
that the time zone is 2 hours 30 minutes.
Station Identifier. Indicates the substation name. The installation’s short name
(InsShNam) from the “PROT/LPHD1” node is used".
Device Identifier. Indicates the unit’s name. The relay’s short name (RelShNam)
from the “PROT/LPHD1” node is used".
Company Name. Indicates the name of unit’s manufacturer, in this case, Ingeteam.
USB ACCESS
When a pendrive is inserted, the following appears in the front above the current screen,
indicating that the device has been detected:
USB Detected
While the data is being downloaded, the following appears in the front above the current
screen:
USB Detected
Downloading data
Just in case there is a CID, an ICD or and IID in the pendrive, the user will be asked for
a confirmation to load this file into the unit.
WANT TO START
CANCEL
ACCEPT
USB Detected
Downloading data
If canceled, downloading is assumed to be complete, and the following appears on the screen
for 5 seconds:
REMOVE THE
USB DEVICE
Only the reports existent in the unit at the time of the download will appear in the
pendrive, with the data structure:
Root with the short installation and relay name (PROT/LPHD node), and the iedName,
separated by “_”·, i.e., “Instalacion_Rele_iedName”
COMTRADE. This directory contains the disturbance recorders generated in the unit
FAULT RECORDS. This directory contains the fault records generated in the unit.
The rest of the unit’s reports are dependent on the root:
Maximetro.xml
Sucesos.xml
Informe_Estadisticos.xml
Registro.xml
CID
For detailed information about these reports, see Chapter 10, “DATA AdQUISITION FUNCTIONS
”.
Figure 136 USB Tree
When a pendrive is inserted into the front USB port, a check is run to see if an ICD
exists. If there is an ICD, it is copied into the directory “public/SCL/notvalidated” in
order that it may be operative in the unit.
Suring the search for the ICD, the existence of a file with an ICD, icd, CID, cid, IID or
iid extension is checked. The file name need not be specific as only the extension is
checked.
If there is more than one file with one of the indicated extensions, the ICD is considered
invalid and not ICD is captured.
User: ftpuser
Password: ftpuser
The user profile allows direct access to the LD and SCL directories.
13.1 SIGNALS
The distribution of the unit’s signals is effected using four numbers as a base: 0, 8192,
16384, 24576. All the unit’s signals are divided into four types, taking these four digits
as references:
Digital Inputs
Identification number between 0 and 287.
Example: sAddr="S,0,5,0;TX1:GGIO1.Digital input 6,TX2:GGIO1.Digital Input
6,AC:1.2,ED:1.1,AD:0.0"
In the example, we can see the identification number of digital input
number six from the first card in the ICD sAddress.
GEN/GGIO node
Goose Signals
In turn, the Goose signals are divided into RIO modules and LGOS nodes.
RIO modules
Identification number between 288 and 607.
Example: sAddr="GS,0,288,0;TX1:RIO1.St,TX2:RIO1.St,AC:1.2,ED:1.1,AD:0.0"
In the example, we can see the identification number of the first signal
from the first RIO module in the ICD sAddress.
GEN/RIO node
LGOS nodes
Identification number between 608 and 1695.
Example: sAddr="GS,0,608,0;TX1:LGOS1.St,TX2:LGOS1.St,AC:1.2,ED:1.1,AD:0.1"
In the example, we can see the identification number of the first signal
from the first LGOS node in the ICD sAddress.
GEN/LGOS node
Therefore, the distribution of these signals based on their identification number is as
follows:
DIGITAL
INPUTS
(0 - 287)
GOOSE
SIGNALS
(288 - 1695)
This type of signal includes type B protection signals, fast protection logic signals and
fast control logic signals.
PROTECTION SIGNALS
TYPE B
(8192 - 9215)
(9216 - 9343)
ADDITIONAL
PROTECTION SIGNALS
TYPE B
(9472 -10399)
TYPE C
PROTECTION
SIGNALS
(16384 -
16671)
This type of signal includes the type D protection signals, the communication failure
signals for all the bays that are connected to the unit, the slow logic control signals
and signals resulting from orders.
13.2 MEASUREMENTS
Protection measurements.
Identification number between 0 and 299.
Example: sAddr="M,0,124,1;TX1:I average,TX2: AVERAGE I"
In the example, we can see the identification number of a protection measurement
in the ICD sAddress.
Additional measurements: Identification number between 744 and 882.
PROT node
Goose Measurements
Identification number between 300 and 555.
Example: sAddr="GM,0,300,0"
In the example, we can see the identification number of the first Goose
measurement in the ICD sAddress.
GEN/LGOS node
Measurements resulting from logics
Identification number between 556 and 687.
Example: sAddr="LM,0,556,0;TX1:Logic measurement 1,TX2:Logic analog 1"
In the example, we can see the identification number of the first logic
measurement in the ICD sAddress.
CTRL/AutGGIO1 node
Measurements resulting from analogical input boards
Identification number between 688 and 743.
Example: sAddr="M,0,688,0;TX1:Measure 1,TX2:Measure 1"
In the example, we can see the identification number of the first measurement in
the ICD sAddress.
GEN/GGIO node
Therefore, the distribution of these measurements based on their identification number is
as follows:
Table 153 Measurement mapping
PROTECTION MEASUREMENTS
(0 - 299)
GOOSE MEASUREMENTS
(300 - 555)
ADDITIONAL
PROTECTION MEASUREMENTS
(744 - 882)
13.3 COUNTERS
Protection counters
Identification number between 0 and 31.
Example: sAddr="C,0,0;TX1:Active energy out,TX2:Active Energy Out"
In the example, we can see the identification number of the first protection
counter in the ICD sAddress.
Additional protection counters: Identification number between 150 and 176.
PROT node
Counters resulting from logics
Identification number between 32 and 149.
Example: sAddr="LC,0,32;TX1:Logic counter 1,TX2:Logic counter 1"
In the example, we can see the identification number of the first logic counter
in the ICD sAddress.
CTRL/AutGGIO1 node
PROTECTION COUNTERS
(0 - 31)
ADDITIONAL
PROTECTION COUNTERS
(150 - 176)
14. LOGICS
This document explains the operating mode of the logics generation tool for Ingeteam’s EF
family of logic devices.
The EF family’s logics are fragments of executable code generated by the user using a PC tool,
both in text and graphic formats. These logics can be defined in an IED’s data model (using
iedFactory) or in a particular instance (using substationFactory or the pacFactory settings
tool).
There are two different types of logics: control logics and protection logics.
In this chapter the device logics are defined and an introduction to the configuration options
is presented. For more details about the logics configuration consult the user manual of the
software configuration tool (pacFactory / energyFactorySuite).
The logics can be used to customize the behaviour of an IED. For example, automatism can be
added or calculations between different magnitudes can be carried out.
The logics are run in two different tasks, each with different priorities: one for fast
logics and one for slow logics.
The running time for the fast logics is 2 milliseconds. The running time for the slow
logics is approximately 10 milliseconds, although given that this is a lower priority task
it may occasionally be affected by other higher priority tasks.
Each configured logic must be included in one of these two tasks, in accordance with the
manner in which they are to be run – fast logics or slow logics.
To edit a control logic from substationFactory, the user must select the corresponding IED
and click on the editor icon. To edit the control logic from pacFactory, click on the
"Logics" option in the “Configuration” menu or in the side menu.
The logics are defined in program blocks called POU (program organization unit). Two of the
languages defined in the IEC-61131-3 standard are offered for the creation of each POU: one
textual (ST) and one graphic (FBD).
The POUs can be defined at different levels, both in the model and in an instantiation: at
the IED level, at the logical device (LD) level or at the logical node (LN) level.
There are three types of POU, as defined in the IEC-61131-3 standard: PROGRAM,
FUNCTION_BLOCK and FUNCTION. The programs are the senior hierarchy POUs, with each one
corresponding to a task to be run on the device. Each PROGRAM can refer to several
FUNCTION_BLOCK and FUNCTION. In turn, a FUNCTION_BLOCK can refer to one or more FUNCTION.
At the IED level, two PROGRAM corresponding to the two above tasks are automatically
defined: one for the fast logics (FastLog) and the other for the slow logics (SlowLog).
These PROGRAM cannot be deleted nor can their names be modified. New PROGRAM cannot be
created at any level, either.
The various protection functions can be configured by means of settings associated to the
unit’s internal signals, vg enablings or blocks. The protection functions treat these
signals as inputs, although they do not modify their value. In order to assign them a
value, the protection logics are used.
The protection logics have two main differences in relation to the control logics:
The protection logic editor has been simplified to facilitate the programming of
this type of logic.
The number of available logics is defined by the unit’s data model.
Each logic signal has a value obtained from an associated logic. These logics are fragments
of code created in one of the two possible languages - ST (text) or FBD (graphic). The
corresponding language must be selected when a logic corresponding to a signal is edited
for the first time.
Each protection logic is independent from the rest and need not be included in a POU in
order to be run. When a protection logic is saved in the editor, an attempt is made to
compile the information. If no error is found, a call to the logic in question is
automatically generated so that the logic is run when a CID (configured IED description)
message is sent to the device or sent from pacFactory.
The protection logics are run every 2 milliseconds, as are the fast control logics.
To edit a protection logic from substationFactory, the user must select the corresponding
logic signal and click on the editor icon. This icon has three statuses to indicate the
status of the corresponding logic:
To edit a protection logic from pacFactory, click on the "Protection Logics" option in the
“Configuration” menu or in the side menu.
A screen with a list of the available protection logic signals, along with the logic’s
status icon and an access button for each logic’s editor, will be shown.
All of the IED’s database signals, measurements, meters and commands can be accessed as
readings from the logics (the data model’s basic data with valid sAddress). There is a set
of data within this database that can be modified from the control logics:
Both the data’s value and its quality can be accessed. If data is modifiable from the
logic, the same will apply to the value and the quality.
The data that can be modified from the logic may be preset in the unit's data model or they
can be configured in the engineering phase.
Only the status of the signal to which the logic in question is associated can be modified
from the protection logics.
Commands in the EF platform can be issued for controllable elements (elements whose
functional constraint is “CO”) that may belong to different Data classes (detailed in IEC
61850-7-3) and, as defined in IEC 61850-7-2, paragraph 17 Control class model, may be:
The control model established by the standard consists of a series of services and an
operational specification to be followed in accordance with the type of command.
Furthermore, a series of parameters are defined for the command (IEC 61850-7-3-7.5),
including the following fields:
CtlVal. Command value. The type will be different, in accordance with element’s the
CDC (Common Data Class). Nevertheless, it is obligatory in all cases.
Origen. Origin of the command, divided into two fields:
orCat. Origen category. Indicates the type of client that issues the command
(local, substation, remote command, etc.)
orIdent. For commands sent through IEC 61850 communications, this Data will
include the client’s IP address, according to which the unit is able to decide
whether to block the command or not, in accordance with its authorization.
PulseConfig. This Data is a structure that defines the command’s output pulse
type (pulse, duration, pulse train)
OperTimeOut. Maximum switching time following which a failure is recorded if
the command has not been successfully run.
sboTimeout. The time which the command selection remains active.
Thus, the operation of a specific command will depend on its configuration and ctlModel, as
established by the IEC 61850-7-2-17 standard. If the command’s ctlModel is
DIRECT_WITH_NORMAL_SECURITY (1), the process to follow will be as shown in the following
figure:
Figure 137 Direct command process with normal security
Operate
61850 Client ctlVal EF Device
(operTm)
origin
ctlNum
Checking for
operation
Origin,
blocks…
Operate
Respons
e
Upon receiving a request to run a command by means of an operate request, the unit analyses
the validity of the request, checking the client’s authorization and any possible blocks,
and responds positively or negatively by means of an operate request to the client. If the
response is negative, the AddCause field informs the client of the reason for the failure
of the command. If the response is positive, the command is sent to the device.
Figure 138 Command process with prior selection and normal security
Select
Checking for
selection
Origin,select
ion…
Select
Respons
e
In this case, upon receiving a selection request the selection's permission is checked and,
when applicable, a positive response is sent. A timer then starts which, upon the elapse of
the sboTimeOut timeout, cancels the selection. If a run request is received before the
conclusion of the timeout, the same process as that described for the direct commands with
normal security is followed.
If the selection is not been accepted, the response will be negative and the process is
concluded. Similarly, if a run request is not received before the conclusion of the
sboTimeOut, the selection is cancelled and the command process is concluded.
Checking for
operation
Origin,
Operate blocks…
Respons
e
Command
Terminati
onn
Due to the enhanced security, and after sending the run command to the device, there is a
timeout for the reception of the return information from the element on which the command
is to be run. The unit can thus inform the client by means of a Command termination whether
the operation has been run successfully before the conclusion of the period set in
operTimeout.
If the device’s return information is received before the conclusion of the maximum run
time and the position in question has been reached, the client is sent a positive Command
Termination.
If the operTimeout time is exceeded without having received the information from the
device, or if it is received but the position in question has not been reached, the Command
Termination will be negative. As with the rest of the negative responses sent to the
client, the cause of the failure of the command will be included in the AddCause field.
Figure 140 Command process with prior selection and enhanced security
Command
Terminati
onn
Independently of CtlModel that is configured for the commands, or of the rest of the
configuration parameters, the corresponding reports are generated whenever a change occurs,
providing the report configuration allows this.
In addition to informing of the changes in the status signals of the elements on which the
commands are to be run, the reports also provide information on the changes in the status
of the two data associated with the command process itself: OpOpnOr and OpClsOr.
For opening commands in general, OpClsOr remains in STANDBY, the sequence for OpOpnOr would
be STANDBY - IN PROGRESS - SUCCESSFUL / UNSUCCESSFUL – STANDBY. In the case of a closure
command, OpOpnOr would remain in standby and OpClsOr would continue the complete sequence.
If the command’s CtlModel indicates that the command has normal security, no return
information is available from the device and, therefore, the sequence would be STANDBY - IN
PROGRESS – STANDY.
The commands sent to the unit can be blocked in specific cases in which the running must
not be allowed. In part 7-2, paragraph 17.5.2.6 of the IEC 61850 standard, the possible
reasons for failure of a command are detailed.
Due to the variety of situations in which a specific command might fail due to a block by
hierarchy, and depending on the specific configuration of unit, as well as invalid position
or unknown blocks, both cases are explained below in greater detail.
The “Local/Remote Type” setting indicates how the unit will behave when it has to block
the commands it is sent. It is located in the cid in "GEN/LLN0/LRmode" or in the display
in "protection/ general basic configuration/local type - Remote" settings and can accept
the four possible values established in the following table:
Table 158 Possible values for Local/Remote Type
The IEC 61850 standard, Part 7-3, section 6.8, defines the potential origins, three of
which are affected by blockages due to the command hierarchy: "remote control", which
corresponds to a remote command, "station-control", which corresponds to a console, and
"bay-control" which corresponds to a bay-level console or to the display. Blocks by
hierarchy will not be applied to any command from any other origin.
Table 159 Blocks for “Iberdrola” Local/Remote Type from remote control
Table 162 Blocks for “Exclusive” Local/Remote Type from remote control
Table 165 Blocks for “No frame” Local/Remote Type from remote control
Remote control signal status (RemctlBlk) Commands Command to modify remote control
(0) remote control permitted blocked
(1) local blocked blocked
Table 166 Blocks for “No frame” Local/Remote Type from console
Remote control signal status (RemctlBlk) Commands Command to modify remote control
(0) remote control permitted blocked
(1) local blocked blocked
Table 167 Blocks for “No frame” Local/Remote Type from bay
Remote control signal status (RemctlBlk) Commands Command to modify remote control
(0) remote control blocked permitted
(1) local permitted permitted
Command Mode (in sAddr) Element Status Opening command Closure command
Open Permitted Permitted
0 / -1 Closed Permitted Permitted
Invalid Permitted Permitted
Unknown Permitted Permitted
Open Blocked (1) Permitted
Closed Permitted Blocked (1)
1
Invalid Blocked (2) Blocked (2)
Unknown Blocked (2) Blocked (2)
Open Blocked (1) Permitted
Closed Permitted Blocked (1)
2
Invalid Permitted Blocked (2)
Unknown Permitted Blocked (2)
Open Permitted Permitted
Closed Permitted Blocked (1)
3
Invalid Permitted Blocked (2)
Unknown Permitted Blocked (2)
Thus, the blocks marked with (1) are blocks by "position reached" and those marked with
(2) are by "invalid position".
The sAddr associated with each command in the CID file has the following format:
Command Mode (in sAddr) Element Status Opening command Closure command
Open Permitted Permitted
0 / -1 Closed Permitted Permitted
Invalid Permitted Permitted
Unknown Permitted Permitted
Open Blocked (1) Permitted
Closed Permitted Blocked (1)
1
Invalid Blocked (2) Blocked (2)
Unknown Blocked (2) Blocked (2)
Open Blocked (1) Permitted
Closed Permitted Blocked (1)
2
Invalid Permitted Blocked (2)
Unknown Permitted Blocked (2)
Open Permitted Permitted
Closed Permitted Blocked (1)
3
Invalid Permitted Blocked (2)
Unknown Permitted Blocked (2)
16.1 CONFIGURATION
The RIO modules are configured using the RIOGGIO logic nodes A maximum of 8 nodes of this
type is contemplated.
Each node has series of attributes that allow us to select the RIO modules with which we
are to communicate and to configure the outputs to be published:
ATTRIBUTE DESCRIPTION
The RIO number to which we want to associate the current node.
NumRIO.stVal It is a configurable value between 1 and 99.The value 0 is
reserved to indicate that the node is not configured.
The RIO module to which we want to associate. It can accept the
1 (12 inputs / 4 outputs) or 2 (8 inputs / 2 outputs). The
TypeRIO.stVal
value 0 is reserved to indicate that the node is not
configured.
16.2 OPERATION
When we have configured a RIOGGIO logical node correctly, the expected performance in the
different attributes is as follows:
ATTRIBUTE DESCRIPTION
Status of the communication with the associated RIO module. The
St.stVal
value 1 indicates that it is correct.
Indicates that the configured RIO type does not match that
CfgErr.stVal which is being received. This value is only displayed in IEC
61850, it has no associated signal in the internal data base.
The values sent to the RIO module. The value always coincides
SPSCO[1..4].stVal
with the signals configured in the InRefs in the same index.
Both the elements received and the communication status has associated signals with fixed
position in the internal database. The signals are distributed as follows:
17.1 MANUAL
The modification of the value of certain attributes requires the resetting of the unit in
order for the modification to have effect. In order to inform of the need to manually reset
of the unit, the ResetDev.stVal signal has been defined within the GEN node’s LLN0.
The writing of the following settings via IEC 61850 communication activates the mentioned
signal:
Table 173 Setting changes that require the manual reset of the unit
17.2 AUTOMATIC
The modification of the unit’s IP configuration may cause - depending on the configuration
of the IPRV logic node, the IEC 61850 server to automatically stop and restart.
The configuration that causes this operation consists of setting the IPRV logic node’s
ConfTD.tipoServ attribute to “1”. If, when modifying the network cards’ IP address/mask,
the new address/mask does not coincide with the configuration in the icd communications
section, the IEC 61850 server will reboot.
This model makes it possible to configure and supervise the complete status of each
reception goose within a single logic node.
ATTRIBUTE DESCRIPTION
ATTRIBUTE DESCRIPTION
Subscription status. Value “1” indicates that the subscription
St.stVal
was successful.
This model uses the IED’s GOOSERx logical device. In order to configure each goose
subscription, an element must be added to the corresponding private part and the following
parameters must be defined:
ATTRIBUTE DESCRIPTION
19.1 DESCRIPTION
In the device has a front Ethernet interface and may have up to two rear Ethernet
interfaces. Each of which can be configured to belong to the network that the user wants,
as seen in the figure below:
When configuring the network of the device it must be taken into account the following
considerations:
Gateways configuration:
There can be only one default Gateway in the devices and it will be associated
to a specific Ethernet interface.
If a Gateway is configurec, the static routes for the ethernet traffic will be
determined by up to 10 groups or three parameters:
IP address of the network or destination host. This IP address indicates
the network or the device you want to connect to.
Network mask or destination host mask.
Gateway IP address. It must be in the same net segment than the IP
address configured in that ethernet port; because in another way the
device will not access to the gateway.
If the IP address of the network or destination host or the mask of the network
or destination host are not configured, the default values are:
IP address: 0.0.0.0, it will be all the networks or default gateway.
Network Mask: 255.255.255.255, it will be all networks or default
gateway.
The configuration of gateways can only be done from the Display.
When changing the IP address, the gateways that are no longer accessible by the new
IP will be removed permanently.
The IP change command keeps the mask that was associated with that Ethernet
interface.
Do not configure two different Ethernet interfaces within the same network segment.
When you configure two interfaces within the same network segment, the device will
use only one of them.
19.3 GOOSES
GOOSE messages (IEC 61850 peer-to-peer communications) are not on the TCP/IP layer, they
are Ethernet packets and are configured at the MAC level.
The devices subscribes to multicast MAC addresses for receiving messages and transmit to a
specific Multicast MAC address.
Graphic pages
I/O pages
Secuence of Events (SOE)
Protection events pages
Alarm pages
Protection status pages
Fault pages
Measurements pages (Multitrans)
Grouping of other screens
Each display type has its own treatment.
There are also menu pages (which include the protection, control and general settings,
such as the date and time, password, FW versions, etc.), which are treated differently to
those mentioned above.
By clicking on the “ (Up), (Down)” keys in any screen, the screens belonging to the
same type are shown. The I/O, SOE, protection events and fault pages are presented in a
preconfigured order. However, in the graphic and alarm screens the presentation order is
defined using an external tool.
If, when in any screen belonging to specific type, we press “(Left), (Right)”, the
following screen type is displayed whilst the screen position remains within the type in
question. Thus, when scrolling through the screen types the last screen types selected
when exiting a specific type are shown.
If no keys are pressed within a period greater than 5 minutes, the unit returns to the
start page and the first page of each type is selected.
By pressing on <ESC> from any screen we return to the start page, whilst the current page
of each screen type is maintained.
There is a special screen type called “Menu to Other Screens” that contains an index of
screens not considered important enough to have been defined as main screens and which
enables access to the same. This screen is configurable via a PC tool.
By pressing <MENU> from within any screen, the first page of the settings menus is
displayed.
The INF button allows the different screens to be displayed in a circular mode, whilst
the order is configurable via a PC tool.
The DOT button allows the different screens to be displayed in a circular mode, whilst
the order is configurable via a PC tool.
The possible values of the status signal associated to the functional key and
its corresponding representation via the LEDs is:
Unprogrammed: the 2 LEDs at OFF.
Unknown Status: the 2 LEDs at ON.
Open Status: upper LED OFF and lower LED ON.
Closed Status: upper LED ON and lower LED OFF.
Invalid Status: the 2 LEDs at ON.
The operation of these keys is as follows:
By pressing the key, the associated item is selected and the corresponding
LED or LEDs flash.
Once the item has been selected, the associated command can be run by
pressing the “I” or “O” keys.
Once the above-mentioned key has been pressed, the unit runs the command
and the lit LED or LEDs cease to flash.
Once a command has been run, the status of the associated LED or LEDs is
updated. In the event of a failure, a window indicating the cause of the
same will appear in the display.
Use the “ (Up), (Down)” keys to switch from one group of graphic screens to another.
The order of the “live points” that have commands and the sequence of the graphic screens
can be modified using the PC tool.
This indication appears for 5 seconds, during which no operations can be carried out on
the item.
If it is in the control selection, only the <ESC>, (Left), (Right) and “I, O” keys
are allowed.
The measurements are displayed with the number of decimal points and digits preset with
the configuration tool. The possible situations that are covered when viewing a
measurement are:
A text indicating the type of card, the address of the module assigned by HW and an
indication of the current page number/number of total pages, which is the same as that of
the card, is displayed at the top of the screen.
An indication of a card failure is shown in the lower part of the screen. If the circle
is filled, the card is in failure, whereas if it is empty, the card is functioning
correctly (Figure 143).The order of this type of screen is defined by the different
card’s addresses – the card with the lowest address is displayed first and the pages can
be scrolled using the “ (Up), (Down)” keys.
The digital signals are displayed as an empty circle, when disabled, or a filled circle,
when enabled. In the event of an invalid signal, an empty circle with a cross is
displayed to represent a disabled status and a filled circle with an inverted cross is
displayed to represent an enabled status (Figure 144).
Each event’s presentation includes the date and time to the millisecond, a 29 character
text and a 7 character acronym.
The texts to be displayed, as well as the signals’ identification, are set in attributes
of the CID and may be modified using an external tool.
The screen order is defined chronologically. Their display order goes from the newest to
the oldest. Within each screen, the most recent are shown at the top of the page and the
oldest at the bottom.
We can scroll through the pages using the “ (Up), (Down)” keys, going from the last
page to the first, and vice-versa. The page order runs from the first page, which has the
most recent events, to the last page, which has the oldest events. The “ (Down)” key is
used to scroll from the first page to the following in increasing order, whereas the “
(Up)” key is used to scroll from the last page to the previous pages.
The total number of pages and the number of the page currently displayed, as well as the
number of events in the display, is shown in the last row.
Treatment:
When accessing this screen for the first time, the most recent events are displayed. The
“ (Down)” and “ (Up)” arrows are used to scroll through the pages, as indicated above.
If new changes are registered whilst we are viewing the 1st page of this type of screen,
the Display is refreshed accordingly and the older changes are moved downwards.
When viewing any page other than the 1st page if new changes are registered, the Display
will not be refreshed and the previous data is shown. In such a case, a flashing,
inverted video “NEW CHANGES” message is shown at the top of the page.
This indication is cleared when the most recent changes are viewed. To do so, we must go
to the first screen.
The texts to be displayed are defined in attributes of the CID. Signals are identified as
protection events by means of the corresponding enabling function in the corresponding
settings node and by configuring the event masks. They can be modified using the PC tool.
The screen order is defined chronologically. Their display order goes from the most
recent to the oldest. Within each screen, the most recent are shown at the top of the
page and the oldest at the bottom (Figure 146). If the protection event list is empty, a
text indicating that the protection event queue is empty will appear.
We can scroll through the pages using the “ (Up), (Down)” keys, going from the last
page to the first, and vice-versa. The page order runs from the first page, which has the
most recent protection events, to the last page, which has the oldest protection events.
The “ (Down)” key is used to scroll from the first page to the following in increasing
order, whereas the “ (Up)” key is used to scroll from the last page to the previous
pages.
Only the last 160 protection events are displayed in these pages.
The (Enter) key is used to select the first protection event from the screen being
viewed, whilst the “ (Up), (Down)” keys are used to scroll to the next protection
event, with the following treatments:
If, whilst at the bottom of the page, we press “ (Down)”, we are taken to the
next page with the first selected protection event, unless we are already
viewing the last page, which case the display will not be changed.
If we are in the protection event selected and we press “ (Up)” key, we are
taken to the previous page, although the last protection event remains
activated, unless we are in the first page and in which case the display will
remain unchanged.
Once this protection event has been selected, we can press (Enter) to view the page
with the measurements associated to the protection event. Use the “ (Up), (Down)” keys
to switch from one page to another if there is more than one measurements page per
protection event. These pages are browsed in a cyclical manner, going from the first to
the last, and vice-versa, as corresponds.
Use <ESC> to exit the screen displaying the measurements associated to the protection
event. Within the protection events’ screen, the change is deselected by clicking on
<ESC> once again.
The total number of pages and the number of the page is currently displayed, as well as
the number of protection events in the display’s queue, is shown in the last row.
Treatment:
When accessing this screen for the first time, the most recent protection events are
displayed.
The “ (Down)” and “ (Up)” arrows are used to scroll through the pages, as indicated
above
If the appearance of new protection events is detected, a flashing, inverted video “NEW
INC” (new protection event) message is shown at the top of the page.
This indication is cleared when the latest protection events are viewed. To do so, no
protection events must be selected and we must go to the first screen. Once we have
arrived at this screen, if we scroll back the first screen with the most recent
protection events to have been registered will be displayed.
Each alarm’s texts, identification and the number of alarms are configured using an
external tool.
When in standby status, the text is displayed in a normal video with white background
and, when enabled, in an inverted video with a dark background.
When the alarm changes status, the signal’s text begins to flash and appears and
disappears within the new status.
If the signal is invalid, the text will be displayed with a cross covering the entire
rectangle. If the signal does not exist, the corresponding alarm's gap will be displayed.
Individual acknowledgements of receipt are not issued for the alarms. Instead, it is
possible to issue acknowledgement for all the alarms displayed in the page that is being
viewed. To do so, we must press (Enter) in an active alarm page and the following
message will appear in a small screen:
If we then press <ESC>, the message is cleared and no acknowledgment of the alarms is
issued. If we press (Enter), the message disappears and an acknowledgment is issued for
all the alarms displayed on the page.
An indication of the total pages and the number of the page displayed will appear at the
top of the page.
These screens are divided into two levels. The first level displays a list of the most
recent faults, as well as the fault number and the fault trip date for each case (Figure
151). The total number of pages and the number of the page being displayed is shown at
the top, whilst the number of faults stored in the unit is shown in the last row.
If the fault list is empty, a text indicating that the fault queue is empty will appear.
The faults are ordered from the most recent or latest (Fault nº 1) to the oldest.
Figure 151 1st level Fault Screens
The second level displays all the information related to the fault, organized in several
pages. The page is displayed with the number of the fault being displayed, as well as an
indication of the number of the current page and the total number of pages per fault.
Use the “ (Up), (Down)” keys to navigate through the first level screen. The page
scroll is cyclical - when the end of the page is reached we are taken to the next first
level page and we are taken from the first page to the last page and vice-versa in
accordance with the key we press.
By pressing (Enter), we access the second level of the selected fault. Use the “ (Up),
(Down)” keys to move between the second level screens pertaining to a single fault. Use
<ESC> to return to the first level page.
Date and time: Indicates the date in the “dd/mm/yy hh:mm:ss.ms” format.
There are three dates:
Start of the fault (first unit picked up).
Trip (first unit tripped).
End of fault (when the trip signal disappears).
Frequency in the moment of the fault.
Pick up and trip types: Summary of the fault with the 3-letter code formed
by combinations of the characters A, B, C, N, NS and G (if tripped by a
phase, neutral, sensitive neutral or ground), RTP (teleprotection), IF
(phase overcurrent), IN (neutral overcurrent), D (current unbalance), VO
(zero-sequence overvoltage), HV (overvoltage), LV (undervoltage), RTP
(teleprotection), DT (transferred trip), DP (pole discordance), IT (thermal
image). Example: AC is a two-phase fault in phases A and C.
Pick up type.
Trip type.
Distance: distance to the fault.
Rf: resistance fault.
LOC: locator code.
Thermal image upon trip. The thermal image is indicated as a % of phases
and neutral.
Breaker. Indicates breaker monitoring data upon the fault:
Open current. For each phase, indicates the current value upon the
trip.
Sigma ki. For each phase, indicates the sigma ki2 value.
Fault screen, with the text “Fault information (I)”.
Pre-fault and fault. Indicates the values measured before the fault and
upon the fault. This screen displays the following values:
Transformer measurements <Trafos>. It indicates the measurement in
the module and the angle of each transformer.
Fault screen, with the text “Fault information (II)”.
Pre-fault and fault. Indicates the values measured before the fault and
upon the fault. This screen displays the following values:
Sequences. Indicates the measurements in the module and the angle
of the current sequences (I0, I1 and I2) and the voltage (V0, V1
and V2).
Power. Indicates the measurements of the total real, reactive and
apparent powers.
Tripped units screen, displays the picked up and the tripped units.
Figure 155 2nd level Fault Screens, page 4
NOTE: only the first 7 picked up and tripped units are displayed. If the number is
greater than 7, a text appears at the bottom of the screen indicating that there are
more picked up units.
NOTE: Certain wiring diagrams have invalid measurements that do not exist. They are
represented by “---“.
The content of this screen is set using the external configuration tool. Screens that are
included in the main screen list cannot be included in this menu.
The image below shows the following types of screen grouped in this screen: Alarm panel,
Protection events and Protection status.
Figure 161 Other screens
It contains those commands that can be given to the unit without having to enter a
Password. The commands will vary in accordance with the unit’s family.
We can access the menu pages with either viewing or modification permissions.
If we enter the correct password and press (Enter), we will have permission to
change settings. The “♦” symbol will appear in the bottom left of the screen, as will
the text “CHANGE SETTINGS”. However, if we press <ESC>, we will only be permitted to
consult the settings. Further more, a text indicating “VIEW SETTINGS” will be shown.
The <ESC> key will function even when some of the password’s numbers have been
entered.
For more information, consult the point 4.2 of the Password Management section in this
manual.
To move from a menu to a submenu we must select the menu that we want to explore and
press (Enter). To return to the previous menu, we must press <ESC>. The <MENU> key
enables us to return to the start menu from any submenu.
The (Up), (Down) keys can be used to change a menu's active line. If all the
menu’s options can be displayed on the screen, only the active line is changed when we
change line. On the other hand, if not all of the menu’s options can be displayed on
the screen at the same time and the cursor is situated over the first or the last of
the screen's menus, the menu will scroll up or down, in accordance with the key used.
An indication of the number of the item selected from the total number of items in the
menu on the screen currently displayed is shown in the bottom right of the screen.
If all the node’s settings can be displayed on the screen, only the selected setting
is changed when we change setting. On the other hand, if not all of the menu’s options
can be displayed on the screen at the same time and the cursor is situated over the
first or the last of the screen's settings, the settings will scroll up or down, in
accordance with the key used. To return to the menu screen, we must press <ESC>.
Thus, by pressing (Enter) we exit the screen and all the changes made so far in that
menu are cleared. If we press <ESC> when the message appears, we remain where we were.
By pressing (Enter) after having modified one of the page's settings, another window
appears. At this point, the user has 2 options:
Wait until the CID modification process is completed with the new
settings. At this point there are 3 possible situations:
If the modification is carried out successfully, a “Changing the
settings OK” text will appear (Figure 166).
If an error occurs during the CID modification process, an “Error in
changing settings” text will appear.
If a time out failure occurs whilst saving the modified settings, a
“Time out in changing settings " message will appear.
Press (Enter) and return to the settings change screen without the
assurance of having modified the CID.
Using the (Up), (Down) keys, we can move through the different options in a
circular manner, that is, when we reach the last option we are returned to the
first option. The selection option is chosen by pressing (Enter). To exit without
selecting, press <ESC>.
There are 2 possibilities within this type, depending on the number, decimal or
integer format.
Decimal
The valid keys are numbers and dot. The desired value is entered directly. Each
digit pressed is captured, followed by the selection of the next digit, until we
press (Enter). The decimal point is entered by pressing “.”“·”. The digits are
entered from left to right. For example, to enter the number 123.45, we must
successively press 1, 2, 3, “.”, 4“·”44, 5, (Enter).
The entered value is checked in order to ensure that it meets the maximum, minimum
and step restrictions. Should it fail to meet any of these restrictions, the
“INVALID VALUE” text is shown. This text disappears when a number key is pressed.
Integer
The valid keys are numbers. The desired value is entered directly. Each digit
pressed is captured, followed by the selection of the next digit, until we press
(Enter). The decimal point is not allowed in such settings. The digits are entered
from left to right. For example, to enter the number 2345, we must successively
press 2, 3, 4, 5, (Enter).
The entered value is checked in order to ensure that it meets the maximum, minimum
and step restrictions. Should it fail to meet any of these restrictions, the
“INVALID VALUE” text is shown. This text disappears when a number key is pressed.
There are some integer type settings whose value is a signal number. In such cases,
the “NOT DEFINED” text (Figure 170) indicates that this setting has no associated
signal. If we wish to associate a signal, we must enter the desired signal number
with numeric keypad and press (Enter).
On the other hand, if we wish to assign the undefined value to a setting, we must
press “R” and the “NOT DEFINED” text will appear in the New field.
Figure 170 Small screen for modifying INTEGER type setting
keys, we can navigate through the IP and MASK fields in a circular manner, that is,
when we reach the last option we are returned to the first option.
If we want to modify the IP, select the IP field and then enter the values. For
example, to enter the IP address 192.168.182.1, we must press 1, 9, 2,”.”, 1, 6, 8,
“.”, 1, 8, 2, “.”,1, (Enter).
If the user enters an incorrect value, the last character entered can be deleted
with the “” (Left) key.
Once the correct data have been entered, press (Enter) to check that the values
entered are valid. In the event of an error, a small screen displaying the cause of
the error will be shown.
Figure 172 Ethernet parameters setting changes screen
Gateway
The Gateway’s that are configured in the unit can also be viewed, added, modified
and deleted from the display. Up to 10 gateways can be configured, ONLY 1 of which
can be a default gateway.
Figure 173 Network configuration screen
Figure 173 shows the screen with the different interfaces for the unit’s network
and gateways. We can see that a default gateway with IP address 192.169.182.254 and
a gateway with IP address 192.168.182.253 have been configured. The remaining
gateways have not been configured.
Viewing a Gateway
If we select Gateway 1 and press (Enter), the following screen appears (Figure
174) showing the Gateway’s data values and a legend at the bottom with the
different options available to the user.
Figure 174 Gateway display screen
To add a new Gateway, select a non-configured gateway, for example Gateway 3, and
press (Enter).
This screen shows the values of the Gateway’s 3 fields as non-configured. In such a
case, we can only exit or edit (add) the Gateway. By pressing (Enter) again, the
Gateway edition/creation screen will be displayed.
The (Up), (Down) keys are used to move between destination IP address,
destination network mask and the Gateway IP address fields in a circular manner.
This is not possible in the default Gateway, which has a single editable field.
If the user enters an incorrect value, the last character entered can be deleted
with the “” (Left) key.
If we want to enter the Gateway with the destination IP 10.15.1.6, Gateway mask
255.255.255.255 and Gateway IP address 192.168.182.252, we must press
1,0,”.”,1,5,”.”,1,”.”,6 and then (Down) to complete the Gateway mask by pressing
2,5,5,”.”,2,5,5,”.”,2,5,5,”.”,2,5,5. Next, we must use (Down) and complete the
Gateway ip address by entering 1, 9, 2,”.”, 1, 6, 8, “.”, 1, 8,2, “.”, 2, 5, 2.
Once the correct data have been entered, press (Enter) to check that the values
entered are valid. In the event of an error, a small screen displaying the cause of
the error will be shown.
The screen will display the new configuration and the new Gateway introduced.
Deleting a Gateway
If we press “R” in the Gateway configuration screen and we have permission to
change settings (having entered the correct password into the password screen), the
Gateway that is being displayed will be deleted.
2 digits must always be entered for year, month and date. This means that in order
to enter “1” we must enter “01”.
If the user enters an incorrect value, the last character entered can be deleted
with the “” (Left) key.
Once the correct data have been entered, press (Enter) to check that the values
entered are valid. In the event of an error, an “INCORRECT DATE” text will be
shown. If the data are valid, no windows will be shown.
Figure 177 Unit date and time setting screen
When we press a numeric key within the password screen, each keystroke will be
considered part of the password and will be indicated in the display with “*”. When we
have entered between 4 and 8 characters and pressed "Enter", the data entered will be
validated against the unit’s password. If the password entered is incorrect, a warning
text will be displayed.
Pressing <ESC> enables us to access the settings menus with viewing only permissions.
If we enter the correct password we will be able to view and modify. <ESC> will
function even when certain of the password’s numbers have been entered, i.e., if we
press <ESC> while we are entering the password we will access the menu with viewing
only permission.
The user can change the password, providing that he or she knows the former password.
You will be asked to type the password twice before changing it. The password numbers
will appear hidden as they are entered (the “*” will appear for each number entered).
Once the first password has been entered, press (Enter) and enter the second
password. Once the second password has been entered, press (Enter) and the password
will be changed (providing the two passwords entered are the same). As with the
numbers, they are entered from left to right.
Operation
We must use the (Up), (Down), (Left) and (Right) keys to
navigate around the virtual keyboard, whilst (Enter) is used to
confirm the selected keyboard field.
We must enter the old password and select the "Validate" field before
finally pressing (Enter).
We must then enter the new password and select the "Validate" field
before finally pressing (Enter).
A small window showing the result of the password modification (OK or
the cause of the failure) will be displayed.
If the user enters an incorrect value, the last character entered can be deleted with
the “R” key.
If we then press (Up) the contrast’s intensity will increase, and if we press (Down),
the intensity will decrease. To exit this screen, press (Enter). (Enter)
Once the treatment has terminated, the following window will appear in the display
indicating that we can remove the USB device.
Figure 182 Remove the USB device
NOTE: If the USB device is not removed within 5 seconds, the small screen will disappear
and the display will return to the previous screen.
Enclosed below are the groups of curves, according to BS142, which correspond to the
following types:
k tr
T M TRECAIDA M
2
I 1 I 1
I I
0 0
in which:
Constants Normal inverse Short inverse Long inverse Very inverse Extreme. inverse MIEspecial
K 0.14 0.05 120 13.50 80.00 2.60
0.02 0.04 1 1.00 2.00 1.00
tr 9.7 0.5 120 43.2 58.2 21.2
The following represent the curves which correspond to indexes 0.05, 0.1, 0.2, 0.3, 0.4,
0.5, 0.6, 0.7, 0.8, 0.9 and 1.0 for each type of characteristic. Bear in mind that there
are another 9 curves between each of the two curves illustrated, except between 0.05 and
0.1, between which there are another 4.
CURVES FOR TIMED CHARACTERISTICS
Inverse curve
k tr
T M TRECAIDA M
2
I 1 I 1
I I
0 0
M\I/Io 0 0.25 0.5 0.75 1.05 1.10 1.20 1.30 1.50 2.00 2.50 3.00 5.00 10.00 20.00 40.00
0.05 0.485 0.517 0.647 1.109 7.170 3.669 1.916 1.331 0.860 0.501 0.378 0.315 0.214 0.149 0.113 0.091
0.06 0.582 0.621 0.776 1.330 8.604 4.402 2.299 1.597 1.032 0.602 0.454 0.378 0.257 0.178 0.136 0.110
0.07 0.679 0.724 0.905 1.552 10.038 5.136 2.683 1.863 1.204 0.702 0.530 0.441 0.300 0.208 0.159 0.128
0.08 0.776 0.828 1.035 1.774 11.472 5.870 3.066 2.129 1.376 0.802 0.606 0.504 0.342 0.238 0.181 0.146
0.09 0.873 0.931 1.164 1.995 12.906 6.604 3.449 2.395 1.547 0.903 0.681 0.567 0.385 0.267 0.204 0.165
0.10 0.970 1.035 1.293 2.217 14.340 7.337 3.832 2.661 1.719 1.003 0.757 0.630 0.428 0.297 0.227 0.183
0.11 1.067 1.138 1.423 2.439 15.774 8.071 4.216 2.927 1.891 1.103 0.833 0.693 0.471 0.327 0.249 0.201
0.12 1.164 1.242 1.552 2.661 17.208 8.805 4.599 3.193 2.063 1.203 0.908 0.756 0.514 0.356 0.272 0.219
0.13 1.261 1.345 1.681 2.882 18.642 9.539 4.982 3.459 2.235 1.304 0.984 0.819 0.556 0.386 0.295 0.238
0.14 1.358 1.449 1.811 3.104 20.076 10.272 5.365 3.725 2.407 1.404 1.060 0.882 0.599 0.416 0.317 0.256
0.15 1.455 1.552 1.940 3.326 21.510 11.006 5.749 3.992 2.579 1.504 1.135 0.945 0.642 0.446 0.340 0.274
0.16 1.552 1.655 2.069 3.547 22.944 11.740 6.132 4.258 2.751 1.605 1.211 1.008 0.685 0.475 0.363 0.293
0.17 1.649 1.759 2.199 3.769 24.378 12.474 6.515 4.524 2.923 1.705 1.287 1.071 0.728 0.505 0.385 0.311
0.18 1.746 1.862 2.328 3.991 25.812 13.207 6.898 4.790 3.095 1.805 1.363 1.134 0.770 0.535 0.408 0.329
0.19 1.843 1.966 2.457 4.213 27.246 13.941 7.282 5.056 3.267 1.906 1.438 1.197 0.813 0.564 0.431 0.347
0.20 1.940 2.069 2.587 4.434 28.680 14.675 7.665 5.322 3.439 2.006 1.514 1.260 0.856 0.594 0.453 0.366
0.25 2.425 2.587 3.233 5.543 35.850 18.344 9.581 6.653 4.299 2.507 1.892 1.575 1.070 0.743 0.567 0.457
0.30 2.910 3.104 3.880 6.651 43.021 22.012 11.497 7.983 5.158 3.009 2.271 1.891 1.284 0.891 0.680 0.549
0.35 3.395 3.621 4.527 7.760 50.191 25.681 13.413 9.314 6.018 3.510 2.649 2.206 1.498 1.040 0.794 0.640
0.40 3.880 4.139 5.173 8.869 57.361 29.350 15.329 10.644 6.878 4.012 3.028 2.521 1.712 1.188 0.907 0.731
0.45 4.365 4.656 5.820 9.977 64.531 33.018 17.246 11.975 7.737 4.513 3.406 2.836 1.926 1.337 1.020 0.823
0.50 4.850 5.173 6.467 11.086 71.701 36.687 19.162 13.305 8.597 5.015 3.785 3.151 2.140 1.485 1.134 0.914
0.55 5.335 5.691 7.113 12.194 78.871 40.356 21.078 14.636 9.457 5.516 4.163 3.466 2.354 1.634 1.247 1.006
0.60 5.820 6.208 7.760 13.303 86.041 44.025 22.994 15.966 10.317 6.017 4.542 3.781 2.568 1.782 1.360 1.097
0.65 6.305 6.725 8.407 14.411 93.211 47.693 24.910 17.297 11.176 6.519 4.920 4.096 2.782 1.931 1.474 1.188
0.70 6.790 7.243 9.053 15.520 100.381 51.362 26.827 18.627 12.036 7.020 5.299 4.411 2.996 2.079 1.587 1.280
0.75 7.275 7.760 9.700 16.629 107.551 55.031 28.743 19.958 12.896 7.522 5.677 4.726 3.210 2.228 1.701 1.371
0.80 7.760 8.277 10.347 17.737 114.721 58.700 30.659 21.288 13.755 8.023 6.056 5.042 3.424 2.376 1.814 1.463
0.85 8.245 8.795 10.993 18.846 121.891 62.368 32.575 22.619 14.615 8.525 6.434 5.357 3.638 2.525 1.927 1.554
0.90 8.730 9.312 11.640 19.954 129.062 66.037 34.491 23.949 15.475 9.026 6.813 5.672 3.852 2.674 2.041 1.646
0.95 9.215 9.829 12.287 21.063 136.232 69.706 36.408 25.280 16.335 9.528 7.191 5.987 4.066 2.822 2.154 1.737
1.00 9.700 10.347 12.933 22.171 143.402 73.374 38.324 26.611 17.194 10.029 7.570 6.302 4.280 2.971 2.267 1.828
1.05 10.185 10.864 13.580 23.280 150.572 77.043 40.240 27.941 18.054 10.530 7.948 6.617 4.494 3.119 2.381 1.920
CURVES FOR TIMED CHARACTERISTICS
CURVES FOR TIMED CHARACTERISTICS
k tr
T M TRECAIDA M
2
I 1 I 1
I I
0 0
@Fig.160.png-H:61,65-W:103,7@ @Fig.161.png-H:62,2-W:145,75@
K = 120, = 1 tr = 120
M\I/Io 0 0.25 0.50 0.75 1.05 1.10 1.20 1.30 1.50 2.00 2.50 3.00 5.00 10.00 20.00 40.00
0.05 6.000 6.400 8.000 13.714 120.000 60.000 30.000 20.000 12.000 6.000 4.000 3.000 1.500 0.667 0.316 0.154
0.06 7.200 7.680 9.600 16.457 144.000 72.000 36.000 24.000 14.400 7.200 4.800 3.600 1.800 0.800 0.379 0.185
0.07 8.400 8.960 11.200 19.200 168.000 84.000 42.000 28.000 16.800 8.400 5.600 4.200 2.100 0.933 0.442 0.215
0.08 9.600 10.240 12.800 21.943 192.000 96.000 48.000 32.000 19.200 9.600 6.400 4.800 2.400 1.067 0.505 0.246
0.09 10.800 11.520 14.400 24.686 216.000 108.000 54.000 36.000 21.600 10.800 7.200 5.400 2.700 1.200 0.568 0.277
0.10 12.000 12.800 16.000 27.429 240.000 120.000 60.000 40.000 24.000 12.000 8.000 6.000 3.000 1.333 0.632 0.308
0.11 13.200 14.080 17.600 30.171 264.000 132.000 66.000 44.000 26.400 13.200 8.800 6.600 3.300 1.467 0.695 0.338
0.12 14.400 15.360 19.200 32.914 288.000 144.000 72.000 48.000 28.800 14.400 9.600 7.200 3.600 1.600 0.758 0.369
0.13 15.600 16.640 20.800 35.657 312.000 156.000 78.000 52.000 31.200 15.600 10.400 7.800 3.900 1.733 0.821 0.400
0.14 16.800 17.920 22.400 38.400 336.000 168.000 84.000 56.000 33.600 16.800 11.200 8.400 4.200 1.867 0.884 0.431
0.15 18.000 19.200 24.000 41.143 360.000 180.000 90.000 60.000 36.000 18.000 12.000 9.000 4.500 2.000 0.947 0.462
0.16 19.200 20.480 25.600 43.886 384.000 192.000 96.000 64.000 38.400 19.200 12.800 9.600 4.800 2.133 1.011 0.492
0.17 20.400 21.760 27.200 46.629 408.000 204.000 102.000 68.000 40.800 20.400 13.600 10.200 5.100 2.267 1.074 0.523
0.18 21.600 23.040 28.800 49.371 432.000 216.000 108.000 72.000 43.200 21.600 14.400 10.800 5.400 2.400 1.137 0.554
0.19 22.800 24.320 30.400 52.114 456.000 228.000 114.000 76.000 45.600 22.800 15.200 11.400 5.700 2.533 1.200 0.585
0.20 24.000 25.600 32.000 54.857 480.001 240.000 120.000 80.000 48.000 24.000 16.000 12.000 6.000 2.667 1.263 0.615
0.25 30.000 32.000 40.000 68.571 600.001 300.000 150.000 100.000 60.000 30.000 20.000 15.000 7.500 3.333 1.579 0.769
0.30 36.000 38.400 48.000 82.286 720.001 360.000 180.000 120.000 72.000 36.000 24.000 18.000 9.000 4.000 1.895 0.923
0.35 42.000 44.800 56.000 96.000 840.001 420.000 210.000 140.000 84.000 42.000 28.000 21.000 10.500 4.667 2.211 1.077
0.40 48.000 51.200 64.000 109.714 960.001 480.000 240.000 160.000 96.000 48.000 32.000 24.000 12.000 5.333 2.526 1.231
0.45 54.000 57.600 72.000 123.429 1080.001 540.000 270.000 180.000 108.000 54.000 36.000 27.000 13.500 6.000 2.842 1.385
0.50 60.000 64.000 80.000 137.143 1200.001 600.000 300.000 200.000 120.000 60.000 40.000 30.000 15.000 6.667 3.158 1.538
0.55 66.000 70.400 88.000 150.857 1320.001 660.000 330.000 220.000 132.000 66.000 44.000 33.000 16.500 7.333 3.474 1.692
0.60 72.000 76.800 96.000 164.571 1440.002 720.000 360.000 240.000 144.000 72.000 48.000 36.000 18.000 8.000 3.789 1.846
0.65 78.000 83.200 104.000 178.286 1560.002 780.000 390.000 260.000 156.000 78.000 52.000 39.000 19.500 8.667 4.105 2.000
0.70 84.000 89.600 112.000 192.000 1680.002 840.000 420.000 280.000 168.000 84.000 56.000 42.000 21.000 9.333 4.421 2.154
0.75 90.000 96.000 120.000 205.714 1800.002 900.000 450.000 300.000 180.000 90.000 60.000 45.000 22.500 10.000 4.737 2.308
0.80 96.000 102.400 128.000 219.429 1920.002 960.000 480.000 320.000 192.000 96.000 64.000 48.000 24.000 10.667 5.053 2.462
0.85 102.000 108.800 136.000 233.143 2040.002 1020.000 510.000 340.000 204.000 102.000 68.000 51.000 25.500 11.333 5.368 2.615
0.90 108.000 115.200 144.000 246.857 2160.002 1080.000 540.000 360.000 216.000 108.000 72.000 54.000 27.000 12.000 5.684 2.769
0.95 114.000 121.600 152.000 260.571 2280.003 1140.000 570.000 380.000 228.000 114.000 76.000 57.000 28.500 12.667 6.000 2.923
1.00 120.000 128.000 160.000 274.286 2400.003 1200.000 600.000 400.000 240.000 120.000 80.000 60.000 30.000 13.333 6.316 3.077
1.05 126.000 134.400 168.000 288.000 2520.003 1260.000 630.000 420.000 252.000 126.000 84.000 63.000 31.500 14.000 6.632 3.231
CURVES FOR TIMED CHARACTERISTICS
CURVES FOR TIMED CHARACTERISTICS
k tr
T M TRECAIDA M
2
I 1 I 1
I I
0 0
M\I/Io 0 0.25 0.5 0.75 1.05 1.10 1.20 1.30 1.50 2.00 2.50 3.00 5.00 10.00 20.00 40.00
0.05 0.025 0.027 0.033 0.057 1.280 0.655 0.342 0.237 0.153 0.089 0.067 0.056 0.038 0.026 0.020 0.016
0.06 0.030 0.032 0.040 0.069 1.536 0.785 0.410 0.284 0.183 0.107 0.080 0.067 0.045 0.031 0.024 0.019
0.07 0.035 0.037 0.047 0.080 1.792 0.916 0.478 0.332 0.214 0.124 0.094 0.078 0.053 0.036 0.027 0.022
0.08 0.040 0.043 0.053 0.091 2.048 1.047 0.546 0.379 0.245 0.142 0.107 0.089 0.060 0.041 0.031 0.025
0.09 0.045 0.048 0.060 0.103 2.304 1.178 0.615 0.427 0.275 0.160 0.121 0.100 0.068 0.047 0.035 0.028
0.10 0.050 0.053 0.067 0.114 2.559 1.309 0.683 0.474 0.306 0.178 0.134 0.111 0.075 0.052 0.039 0.031
0.11 0.055 0.059 0.073 0.126 2.815 1.440 0.751 0.521 0.336 0.196 0.147 0.122 0.083 0.057 0.043 0.035
0.12 0.060 0.064 0.080 0.137 3.071 1.571 0.820 0.569 0.367 0.213 0.161 0.134 0.090 0.062 0.047 0.038
0.13 0.065 0.069 0.087 0.149 3.327 1.702 0.888 0.616 0.398 0.231 0.174 0.145 0.098 0.067 0.051 0.041
0.14 0.070 0.075 0.093 0.160 3.583 1.833 0.956 0.664 0.428 0.249 0.188 0.156 0.105 0.073 0.055 0.044
0.15 0.075 0.080 0.100 0.171 3.839 1.964 1.025 0.711 0.459 0.267 0.201 0.167 0.113 0.078 0.059 0.047
0.16 0.080 0.085 0.107 0.183 4.095 2.094 1.093 0.758 0.489 0.285 0.214 0.178 0.120 0.083 0.063 0.050
0.17 0.085 0.091 0.113 0.194 4.351 2.225 1.161 0.806 0.520 0.302 0.228 0.189 0.128 0.088 0.067 0.053
0.18 0.090 0.096 0.120 0.206 4.607 2.356 1.230 0.853 0.550 0.320 0.241 0.200 0.135 0.093 0.071 0.057
0.19 0.095 0.101 0.127 0.217 4.863 2.487 1.298 0.900 0.581 0.338 0.254 0.211 0.143 0.098 0.075 0.060
0.20 0.100 0.107 0.133 0.229 5.119 2.618 1.366 0.948 0.612 0.356 0.268 0.223 0.150 0.104 0.079 0.063
0.25 0.125 0.133 0.167 0.286 6.399 3.273 1.708 1.185 0.764 0.445 0.335 0.278 0.188 0.130 0.098 0.079
0.30 0.150 0.160 0.200 0.343 7.678 3.927 2.049 1.422 0.917 0.534 0.402 0.334 0.226 0.155 0.118 0.094
0.35 0.175 0.187 0.233 0.400 8.958 4.582 2.391 1.659 1.070 0.622 0.469 0.390 0.263 0.181 0.137 0.110
0.40 0.200 0.213 0.267 0.457 10.238 5.236 2.732 1.896 1.223 0.711 0.536 0.445 0.301 0.207 0.157 0.126
0.45 0.225 0.240 0.300 0.514 11.518 5.891 3.074 2.133 1.376 0.800 0.603 0.501 0.338 0.233 0.177 0.142
0.50 0.250 0.267 0.333 0.571 12.797 6.545 3.416 2.370 1.529 0.889 0.670 0.556 0.376 0.259 0.196 0.157
0.55 0.275 0.293 0.367 0.629 14.077 7.200 3.757 2.607 1.682 0.978 0.737 0.612 0.414 0.285 0.216 0.173
0.60 0.300 0.320 0.400 0.686 15.357 7.854 4.099 2.844 1.835 1.067 0.804 0.668 0.451 0.311 0.236 0.189
0.65 0.325 0.347 0.433 0.743 16.637 8.509 4.440 3.081 1.988 1.156 0.871 0.723 0.489 0.337 0.255 0.204
0.70 0.350 0.373 0.467 0.800 17.916 9.163 4.782 3.318 2.141 1.245 0.938 0.779 0.526 0.363 0.275 0.220
0.75 0.375 0.400 0.500 0.857 19.196 9.818 5.123 3.555 2.293 1.334 1.005 0.835 0.564 0.389 0.295 0.236
0.80 0.400 0.427 0.533 0.914 20.476 10.472 5.465 3.792 2.446 1.423 1.071 0.890 0.602 0.415 0.314 0.252
0.85 0.425 0.453 0.567 0.971 21.756 11.127 5.806 4.029 2.599 1.512 1.138 0.946 0.639 0.441 0.334 0.267
0.90 0.450 0.480 0.600 1.029 23.035 11.781 6.148 4.265 2.752 1.601 1.205 1.002 0.677 0.466 0.353 0.283
0.95 0.475 0.507 0.633 1.086 24.315 12.436 6.489 4.502 2.905 1.690 1.272 1.057 0.714 0.492 0.373 0.299
1.00 0.500 0.533 0.667 1.143 25.595 13.090 6.831 4.739 3.058 1.778 1.339 1.113 0.752 0.518 0.393 0.314
1.05 0.525 0.560 0.700 1.200 26.875 13.745 7.173 4.976 3.211 1.867 1.406 1.169 0.790 0.544 0.412 0.330
CURVES FOR TIMED CHARACTERISTICS
CURVES FOR TIMED CHARACTERISTICS
k tr
T M TRECAIDA M
2
I 1 I 1
I I
0 0
K = 13,5, = 1 tr = 43.2
M\I/Io 0 0.25 0.5 0.75 1.05 1.10 1.20 1.30 1.50 2.00 2.50 3.00 5.00 10.00 20.00 40.00
0.05 2.160 2.304 2.880 4.937 13.500 6.750 3.375 2.250 1.350 0.675 0.450 0.338 0.169 0.075 0.036 0.017
0.06 2.592 2.765 3.456 5.925 16.200 8.100 4.050 2.700 1.620 0.810 0.540 0.405 0.203 0.090 0.043 0.021
0.07 3.024 3.226 4.032 6.912 18.900 9.450 4.725 3.150 1.890 0.945 0.630 0.472 0.236 0.105 0.050 0.024
0.08 3.456 3.686 4.608 7.899 21.600 10.800 5.400 3.600 2.160 1.080 0.720 0.540 0.270 0.120 0.057 0.028
0.09 3.888 4.147 5.184 8.887 24.300 12.150 6.075 4.050 2.430 1.215 0.810 0.607 0.304 0.135 0.064 0.031
0.10 4.320 4.608 5.760 9.874 27.000 13.500 6.750 4.500 2.700 1.350 0.900 0.675 0.337 0.150 0.071 0.035
0.11 4.752 5.069 6.336 10.862 29.700 14.850 7.425 4.950 2.970 1.485 0.990 0.742 0.371 0.165 0.078 0.038
0.12 5.184 5.530 6.912 11.849 32.400 16.200 8.100 5.400 3.240 1.620 1.080 0.810 0.405 0.180 0.085 0.042
0.13 5.616 5.990 7.488 12.837 35.100 17.550 8.775 5.850 3.510 1.755 1.170 0.877 0.439 0.195 0.092 0.045
0.14 6.048 6.451 8.064 13.824 37.800 18.900 9.450 6.300 3.780 1.890 1.260 0.945 0.472 0.210 0.099 0.048
0.15 6.480 6.912 8.640 14.811 40.500 20.250 10.125 6.750 4.050 2.025 1.350 1.013 0.506 0.225 0.107 0.052
0.16 6.912 7.373 9.216 15.799 43.200 21.600 10.800 7.200 4.320 2.160 1.440 1.080 0.540 0.240 0.114 0.055
0.17 7.344 7.834 9.792 16.786 45.900 22.950 11.475 7.650 4.590 2.295 1.530 1.148 0.574 0.255 0.121 0.059
0.18 7.776 8.294 10.368 17.774 48.600 24.300 12.150 8.100 4.860 2.430 1.620 1.215 0.608 0.270 0.128 0.062
0.19 8.208 8.755 10.944 18.761 51.300 25.650 12.825 8.550 5.130 2.565 1.710 1.283 0.641 0.285 0.135 0.066
0.20 8.640 9.216 11.520 19.749 54.000 27.000 13.500 9.000 5.400 2.700 1.800 1.350 0.675 0.300 0.142 0.069
0.25 10.800 11.520 14.400 24.686 67.500 33.750 16.875 11.250 6.750 3.375 2.250 1.688 0.844 0.375 0.178 0.087
0.30 12.960 13.824 17.280 29.623 81.000 40.500 20.250 13.500 8.100 4.050 2.700 2.025 1.013 0.450 0.213 0.104
0.35 15.120 16.128 20.160 34.560 94.500 47.250 23.625 15.750 9.450 4.725 3.150 2.363 1.181 0.525 0.249 0.121
0.40 17.280 18.432 23.040 39.497 108.000 54.000 27.000 18.000 10.800 5.400 3.600 2.700 1.350 0.600 0.284 0.138
0.45 19.440 20.736 25.920 44.434 121.500 60.750 30.375 20.250 12.150 6.075 4.050 3.038 1.519 0.675 0.320 0.156
0.50 21.600 23.040 28.800 49.371 135.000 67.500 33.750 22.500 13.500 6.750 4.500 3.375 1.688 0.750 0.355 0.173
0.55 23.760 25.344 31.680 54.309 148.500 74.250 37.125 24.750 14.850 7.425 4.950 3.713 1.856 0.825 0.391 0.190
0.60 25.920 27.648 34.560 59.246 162.000 81.000 40.500 27.000 16.200 8.100 5.400 4.050 2.025 0.900 0.426 0.208
0.65 28.080 29.952 37.440 64.183 175.500 87.750 43.875 29.250 17.550 8.775 5.850 4.388 2.194 0.975 0.462 0.225
0.70 30.240 32.256 40.320 69.120 189.000 94.500 47.250 31.500 18.900 9.450 6.300 4.725 2.363 1.050 0.497 0.242
0.75 32.400 34.560 43.200 74.057 202.500 101.25 50.625 33.750 20.250 10.125 6.750 5.063 2.531 1.125 0.533 0.260
0.80 34.560 36.864 46.080 78.994 216.000 108.00 54.000 36.000 21.600 10.800 7.200 5.400 2.700 1.200 0.568 0.277
0.85 36.720 39.168 48.960 83.931 229.500 114.75 57.375 38.250 22.950 11.475 7.650 5.738 2.869 1.275 0.604 0.294
0.90 38.880 41.472 51.840 88.869 243.000 121.50 60.750 40.500 24.300 12.150 8.100 6.075 3.038 1.350 0.639 0.312
0.95 41.040 43.776 54.720 93.806 256.500 128.25 64.125 42.750 25.650 12.825 8.550 6.413 3.206 1.425 0.675 0.329
1.00 43.200 46.080 57.600 98.743 270.000 135.00 67.500 45.000 27.000 13.500 9.000 6.750 3.375 1.500 0.711 0.346
1.05 45.360 48.384 60.480 103.68 283.500 141.75 70.875 47.250 28.350 14.175 9.450 7.088 3.544 1.575 0.746 0.363
CURVES FOR TIMED CHARACTERISTICS
CURVES FOR TIMED CHARACTERISTICS
k tr
T M TRECAIDA M
2
I 1 I 1
I I
0 0
K = 80, = 2 tr =58.2
M\I/Io 0 0.25 0.5 0.75 1.05 1.10 1.20 1.30 1.50 2.00 2.50 3.00 5.00 10.00 20.00 40.00
0.05 2.910 3.104 3.880 6.651 39.024 19.048 9.091 5.797 3.200 1.333 0.762 0.500 0.167 0.040 0.010 0.003
0.06 3.492 3.725 4.656 7.982 46.829 22.857 10.909 6.957 3.840 1.600 0.914 0.600 0.200 0.048 0.012 0.003
0.07 4.074 4.346 5.432 9.312 54.634 26.667 12.727 8.116 4.480 1.867 1.067 0.700 0.233 0.057 0.014 0.004
0.08 4.656 4.966 6.208 10.642 62.439 30.476 14.545 9.275 5.120 2.133 1.219 0.800 0.267 0.065 0.016 0.004
0.09 5.238 5.587 6.984 11.973 70.244 34.286 16.364 10.435 5.760 2.400 1.371 0.900 0.300 0.073 0.018 0.005
0.10 5.820 6.208 7.760 13.303 78.049 38.095 18.182 11.594 6.400 2.667 1.524 1.000 0.333 0.081 0.020 0.005
0.11 6.402 6.829 8.536 14.633 85.854 41.905 20.000 12.754 7.040 2.933 1.676 1.100 0.367 0.089 0.022 0.006
0.12 6.984 7.450 9.312 15.963 93.659 45.714 21.818 13.913 7.680 3.200 1.829 1.200 0.400 0.097 0.024 0.006
0.13 7.566 8.070 10.088 17.294 101.464 49.524 23.636 15.072 8.320 3.467 1.981 1.300 0.433 0.105 0.026 0.007
0.14 8.148 8.691 10.864 18.624 109.268 53.333 25.455 16.232 8.960 3.733 2.133 1.400 0.467 0.113 0.028 0.007
0.15 8.730 9.312 11.640 19.954 117.073 57.143 27.273 17.391 9.600 4.000 2.286 1.500 0.500 0.121 0.030 0.008
0.16 9.312 9.933 12.416 21.285 124.878 60.952 29.091 18.551 10.240 4.267 2.438 1.600 0.533 0.129 0.032 0.008
0.17 9.894 10.554 13.192 22.615 132.683 64.762 30.909 19.710 10.880 4.533 2.590 1.700 0.567 0.137 0.034 0.009
0.18 10.476 11.174 13.968 23.945 140.488 68.571 32.727 20.870 11.520 4.800 2.743 1.800 0.600 0.145 0.036 0.009
0.19 11.058 11.795 14.744 25.275 148.293 72.381 34.545 22.029 12.160 5.067 2.895 1.900 0.633 0.154 0.038 0.010
0.20 11.640 12.416 15.520 26.606 156.098 76.190 36.364 23.188 12.800 5.333 3.048 2.000 0.667 0.162 0.040 0.010
0.25 14.550 15.520 19.400 33.257 195.122 95.238 45.455 28.986 16.000 6.667 3.810 2.500 0.833 0.202 0.050 0.013
0.30 17.460 18.624 23.280 39.909 234.147 114.286 54.545 34.783 19.200 8.000 4.571 3.000 1.000 0.242 0.060 0.015
0.35 20.370 21.728 27.160 46.560 273.171 133.333 63.636 40.580 22.400 9.333 5.333 3.500 1.167 0.283 0.070 0.018
0.40 23.280 24.832 31.040 53.211 312.195 152.381 72.727 46.377 25.600 10.667 6.095 4.000 1.333 0.323 0.080 0.020
0.45 26.190 27.936 34.920 59.863 351.220 171.429 81.818 52.174 28.800 12.000 6.857 4.500 1.500 0.364 0.090 0.023
0.50 29.100 31.040 38.800 66.514 390.244 190.476 90.909 57.971 32.000 13.333 7.619 5.000 1.667 0.404 0.100 0.025
0.55 32.010 34.144 42.680 73.166 429.269 209.524 100.000 63.768 35.200 14.667 8.381 5.500 1.833 0.444 0.110 0.028
0.60 34.920 37.248 46.560 79.817 468.293 228.571 109.091 69.565 38.400 16.000 9.143 6.000 2.000 0.485 0.120 0.030
0.65 37.830 40.352 50.440 86.469 507.318 247.619 118.182 75.362 41.600 17.333 9.905 6.500 2.167 0.525 0.130 0.033
0.70 40.740 43.456 54.320 93.120 546.342 266.667 127.273 81.159 44.800 18.667 10.667 7.000 2.333 0.566 0.140 0.035
0.75 43.650 46.560 58.200 99.771 585.367 285.714 136.364 86.957 48.000 20.000 11.429 7.500 2.500 0.606 0.150 0.038
0.80 46.560 49.664 62.080 106.423 624.391 304.762 145.455 92.754 51.200 21.333 12.190 8.000 2.667 0.646 0.160 0.040
0.85 49.470 52.768 65.960 113.074 663.415 323.810 154.545 98.551 54.400 22.667 12.952 8.500 2.833 0.687 0.170 0.043
0.90 52.380 55.872 69.840 119.726 702.440 342.857 163.636 104.348 57.600 24.000 13.714 9.000 3.000 0.727 0.180 0.045
0.95 55.290 58.976 73.720 126.377 741.464 361.905 172.727 110.145 60.800 25.333 14.476 9.500 3.167 0.768 0.190 0.048
1.00 58.200 62.080 77.600 133.029 780.489 380.952 181.818 115.942 64.000 26.667 15.238 10.000 3.333 0.808 0.201 0.050
1.05 61.110 65.184 81.480 139.680 819.513 400.000 190.909 121.739 67.200 28.000 16.000 10.500 3.500 0.848 0.211 0.053
CURVES FOR TIMED CHARACTERISTICS
CURVES FOR TIMED CHARACTERISTICS
k tr
T M TRECAIDA M
2
I 1 I 1
I I
0 0
@Fig.170.png-H:61,65-W:103,7@ @Fig.171.png-H:62,2-W:145,75@
K = 2,6 = 1
M \
1.05 1.10 1.20 1.30 1.40 1.50 2.00 2.50 3.00 4.00 5.00 7.00 10.00 12.00 15.00 20.00 30.00 40.00
I/Io
0.05 2.600 1.300 0.650 0.433 0.325 0.260 0.130 0.087 0.065 0.043 0.032 0.022 0.014 0.012 0.009 0.007 0.004 0.003
0.06 3.120 1.560 0.780 0.520 0.390 0.312 0.156 0.104 0.078 0.052 0.039 0.026 0.017 0.014 0.011 0.008 0.005 0.004
0.07 3.640 1.820 0.910 0.607 0.455 0.364 0.182 0.121 0.091 0.061 0.045 0.030 0.020 0.017 0.013 0.010 0.006 0.005
0.08 4.160 2.080 1.040 0.693 0.520 0.416 0.208 0.139 0.104 0.069 0.052 0.035 0.023 0.019 0.015 0.011 0.007 0.005
0.09 4.680 2.340 1.170 0.780 0.585 0.468 0.234 0.156 0.117 0.078 0.058 0.039 0.026 0.021 0.017 0.012 0.008 0.006
0.10 5.200 2.600 1.300 0.867 0.650 0.520 0.260 0.173 0.130 0.087 0.065 0.043 0.029 0.024 0.019 0.014 0.009 0.007
0.11 5.720 2.860 1.430 0.953 0.715 0.572 0.286 0.191 0.143 0.095 0.071 0.048 0.032 0.026 0.020 0.015 0.010 0.007
0.12 6.240 3.120 1.560 1.040 0.780 0.624 0.312 0.208 0.156 0.104 0.078 0.052 0.035 0.028 0.022 0.016 0.011 0.008
0.13 6.760 3.380 1.690 1.127 0.845 0.676 0.338 0.225 0.169 0.113 0.084 0.056 0.038 0.031 0.024 0.018 0.012 0.009
0.14 7.280 3.640 1.820 1.213 0.910 0.728 0.364 0.243 0.182 0.121 0.091 0.061 0.040 0.033 0.026 0.019 0.013 0.009
0.15 7.800 3.900 1.950 1.300 0.975 0.780 0.390 0.260 0.195 0.130 0.098 0.065 0.043 0.035 0.028 0.021 0.013 0.010
0.16 8.320 4.160 2.080 1.387 1.040 0.832 0.416 0.277 0.208 0.139 0.104 0.069 0.046 0.038 0.030 0.022 0.014 0.011
0.17 8.840 4.420 2.210 1.473 1.105 0.884 0.442 0.295 0.221 0.147 0.111 0.074 0.049 0.040 0.032 0.023 0.015 0.011
0.18 9.360 4.680 2.340 1.560 1.170 0.936 0.468 0.312 0.234 0.156 0.117 0.078 0.052 0.043 0.033 0.025 0.016 0.012
0.19 9.880 4.940 2.470 1.647 1.235 0.988 0.494 0.329 0.247 0.165 0.124 0.082 0.055 0.045 0.035 0.026 0.017 0.013
0.20 10.400 5.200 2.600 1.733 1.300 1.040 0.520 0.347 0.260 0.173 0.130 0.087 0.058 0.047 0.037 0.027 0.018 0.013
0.25 13.000 6.500 3.250 2.167 1.625 1.300 0.650 0.433 0.325 0.217 0.163 0.108 0.072 0.059 0.046 0.034 0.022 0.017
0.30 15.600 7.800 3.900 2.600 1.950 1.560 0.780 0.520 0.390 0.260 0.195 0.130 0.087 0.071 0.056 0.041 0.027 0.020
0.35 18.200 9.100 4.550 3.033 2.275 1.820 0.910 0.607 0.455 0.303 0.228 0.152 0.101 0.083 0.065 0.048 0.031 0.023
0.40 20.800 10.400 5.200 3.467 2.600 2.080 1.040 0.693 0.520 0.347 0.260 0.173 0.116 0.095 0.074 0.055 0.036 0.027
0.45 23.400 11.700 5.850 3.900 2.925 2.340 1.170 0.780 0.585 0.390 0.293 0.195 0.130 0.106 0.084 0.062 0.040 0.030
0.50 26.000 13.000 6.500 4.333 3.250 2.600 1.300 0.867 0.650 0.433 0.325 0.217 0.144 0.118 0.093 0.068 0.045 0.033
0.55 28.600 14.300 7.150 4.767 3.575 2.860 1.430 0.953 0.715 0.477 0.358 0.238 0.159 0.130 0.102 0.075 0.049 0.037
0.60 31.200 15.600 7.800 5.200 3.900 3.120 1.560 1.040 0.780 0.520 0.390 0.260 0.173 0.142 0.111 0.082 0.054 0.040
0.65 33.800 16.900 8.450 5.633 4.225 3.380 1.690 1.127 0.845 0.563 0.423 0.282 0.188 0.154 0.121 0.089 0.058 0.043
0.70 36.400 18.200 9.100 6.067 4.550 3.640 1.820 1.213 0.910 0.607 0.455 0.303 0.202 0.165 0.130 0.096 0.063 0.047
0.75 39.000 19.500 9.750 6.500 4.875 3.900 1.950 1.300 0.975 0.650 0.488 0.325 0.217 0.177 0.139 0.103 0.067 0.050
0.80 41.600 20.800 10.400 6.933 5.200 4.160 2.080 1.387 1.040 0.693 0.520 0.347 0.231 0.189 0.149 0.109 0.072 0.053
0.85 44.200 22.100 11.050 7.367 5.525 4.420 2.210 1.473 1.105 0.737 0.553 0.368 0.246 0.201 0.158 0.116 0.076 0.057
0.90 46.800 23.400 11.700 7.800 5.850 4.680 2.340 1.560 1.170 0.780 0.585 0.390 0.260 0.213 0.167 0.123 0.081 0.060
0.95 49.400 24.700 12.350 8.233 6.175 4.940 2.470 1.647 1.235 0.823 0.618 0.412 0.274 0.225 0.176 0.130 0.085 0.063
1.00 52.000 26.000 13.000 8.667 6.500 5.200 2.600 1.733 1.300 0.867 0.650 0.433 0.289 0.236 0.186 0.137 0.090 0.067
1.05 54.600 27.300 13.650 9.100 6.825 5.460 2.730 1.820 1.365 0.910 0.683 0.455 0.303 0.248 0.195 0.144 0.094 0.070
CURVES FOR TIMED CHARACTERISTICS
CURVES FOR TIMED CHARACTERISTICS
Enclosed below are the groups of curves, according to ANSI, which correspond to the
following types:
T M A
B D E tr
TRECAIDA M
C
I 2 3
I I C I C I 1
2
0 I I I
0 0 0
@Fig.172.png-H:47,8-W:219,45@ @Fig.173.png-H:51,25-W:119,25@
in which:
The following represent the curves which correspond to indexes 0.5, 1.0, 2.0, 3.0, 4.0,
6.0, 8.0, 10.0, 15.0, 20.0 and 30.0 for each type of characteristic. Take into account that
between every two curves differentiated in 1.0 there are another 9 curves.
T M A
B D E tr
TRECAIDA M
C
I 2 3
I I C I C I 1
2
0 I I I
0 0 0
@Fig.174.png-H:54,7-W:250@ @Fig.175.png-H:61,65-W:143,4@
M \
0 0.25 0.5 0.75 1.05 1.10 1.20 1.30 1.50 2.00 2.50 3.00 5.00 10.00 20.00 40.00
I/Io
0.5 0.495 0.528 0.660 1.131 8.614 7.067 4.944 3.613 2.142 0.883 0.523 0.377 0.203 0.113 0.066 0.041
1.0 0.990 1.056 1.320 2.263 17.229 14.134 9.888 7.226 4.284 1.766 1.047 0.754 0.407 0.226 0.133 0.082
2.0 1.980 2.112 2.640 4.526 34.457 28.268 19.775 14.452 8.568 3.531 2.094 1.508 0.814 0.452 0.265 0.164
3.0 2.970 3.168 3.960 6.789 51.686 42.402 29.663 21.678 12.853 5.297 3.140 2.262 1.220 0.678 0.398 0.246
4.0 3.960 4.224 5.280 9.051 68.915 56.536 39.550 28.904 17.137 7.062 4.187 3.016 1.627 0.904 0.530 0.327
5.0 4.950 5.280 6.600 11.314 86.144 70.670 49.438 36.131 21.421 8.828 5.234 3.770 2.034 1.130 0.663 0.409
6.0 5.940 6.336 7.920 13.577 103.372 84.804 59.325 43.357 25.705 10.594 6.281 4.524 2.441 1.356 0.796 0.491
7.0 6.930 7.392 9.240 15.840 120.601 98.938 69.213 50.583 29.989 12.359 7.328 5.277 2.848 1.582 0.928 0.573
8.0 7.920 8.448 10.560 18.103 137.830 113.072 79.100 57.809 34.274 14.125 8.374 6.031 3.254 1.808 1.061 0.655
9.0 8.910 9.504 11.880 20.366 155.059 127.206 88.988 65.035 38.558 15.890 9.421 6.785 3.661 2.034 1.193 0.737
10.0 9.900 10.560 13.200 22.629 172.287 141.340 98.875 72.261 42.842 17.656 10.468 7.539 4.068 2.260 1.326 0.818
11.0 10.890 11.616 14.520 24.891 189.516 155.474 108.763 79.487 47.126 19.422 11.515 8.293 4.475 2.486 1.458 0.900
12.0 11.880 12.672 15.840 27.154 206.745 169.608 118.650 86.713 51.410 21.187 12.562 9.047 4.881 2.712 1.591 0.982
13.0 12.870 13.728 17.160 29.417 223.974 183.742 128.538 93.939 55.694 22.953 13.608 9.801 5.288 2.938 1.724 1.064
14.0 13.860 14.784 18.480 31.680 241.202 197.876 138.425 101.165 59.979 24.719 14.655 10.555 5.695 3.164 1.856 1.146
15.0 14.850 15.840 19.800 33.943 258.431 212.010 148.313 108.392 64.263 26.484 15.702 11.309 6.102 3.390 1.989 1.228
16.0 15.840 16.896 21.120 36.206 275.660 226.144 158.200 115.618 68.547 28.250 16.749 12.063 6.509 3.616 2.121 1.310
17.0 16.830 17.952 22.440 38.469 292.889 240.278 168.088 122.844 72.831 30.015 17.796 12.817 6.915 3.842 2.254 1.391
18.0 17.820 19.008 23.760 40.731 310.117 254.412 177.975 130.070 77.115 31.781 18.842 13.571 7.322 4.068 2.387 1.473
19.0 18.810 20.064 25.080 42.994 327.346 268.546 187.863 137.296 81.400 33.547 19.889 14.324 7.729 4.294 2.519 1.555
20.0 19.800 21.120 26.400 45.257 344.575 282.680 197.750 144.522 85.684 35.312 20.936 15.078 8.136 4.520 2.652 1.637
21.0 20.790 22.176 27.720 47.520 361.803 296.814 207.638 151.748 89.968 37.078 21.983 15.832 8.543 4.746 2.784 1.719
22.0 21.780 23.232 29.040 49.783 379.032 310.948 217.525 158.974 94.252 38.843 23.030 16.586 8.949 4.972 2.917 1.801
23.0 22.770 24.288 30.360 52.046 396.261 325.082 227.413 166.200 98.536 40.609 24.076 17.340 9.356 5.198 3.050 1.883
24.0 23.760 25.344 31.680 54.309 413.490 339.216 237.300 173.426 102.821 42.375 25.123 18.094 9.763 5.424 3.182 1.964
25.0 24.750 26.400 33.000 56.571 430.718 353.350 247.188 180.653 107.105 44.140 26.170 18.848 10.170 5.650 3.315 2.046
26.0 25.740 27.456 34.320 58.834 447.947 367.484 257.075 187.879 111.389 45.906 27.217 19.602 10.576 5.876 3.447 2.128
27.0 26.730 28.512 35.640 61.097 465.176 381.618 266.963 195.105 115.673 47.671 28.264 20.356 10.983 6.102 3.580 2.210
28.0 27.720 29.568 36.960 63.360 482.405 395.752 276.850 202.331 119.957 49.437 29.310 21.110 11.390 6.328 3.713 2.292
29.0 28.710 30.624 38.280 65.623 499.633 409.886 286.738 209.557 124.242 51.203 30.357 21.864 11.797 6.554 3.845 2.374
30.0 29.700 31.680 39.600 67.886 516.862 424.020 296.625 216.783 128.526 52.968 31.404 22.618 12.204 6.780 3.978 2.455
T M A
B D E tr
TRECAIDA M
C
I 2 3
I I C I C I 1
2
0 I I I
0 0 0
@Fig.176.png-H:54,7-W:250@ @Fig.177.png-H:61,65-W:143,4@
M \
0 0.25 0.5 0.75 1.05 1.10 1.20 1.30 1.50 2.00 2.50 3.00 5.00 10.00 20.00 40.00
I/Io
0.5 2.339 2.495 3.119 5.346 5.970 4.924 3.487 2.582 1.567 0.663 0.386 0.268 0.130 0.073 0.051 0.041
1.0 4.678 4.990 6.237 10.693 11.940 9.848 6.975 5.164 3.134 1.325 0.772 0.537 0.260 0.146 0.102 0.082
2.0 9.356 9.980 12.475 21.385 23.881 19.696 13.949 10.327 6.268 2.650 1.545 1.074 0.520 0.291 0.204 0.163
3.0 14.034 14.970 18.712 32.078 35.821 29.544 20.924 15.491 9.402 3.976 2.317 1.611 0.780 0.437 0.306 0.245
4.0 18.712 19.959 24.949 42.770 47.762 39.393 27.898 20.655 12.537 5.301 3.090 2.148 1.040 0.583 0.408 0.326
5.0 23.390 24.949 31.187 53.463 59.702 49.241 34.873 25.819 15.671 6.626 3.862 2.685 1.299 0.728 0.510 0.408
6.0 28.068 29.939 37.424 64.155 71.642 59.089 41.848 30.982 18.805 7.951 4.635 3.221 1.559 0.874 0.612 0.489
7.0 32.746 34.929 43.661 74.848 83.583 68.937 48.822 36.146 21.939 9.276 5.407 3.758 1.819 1.020 0.714 0.571
8.0 37.424 39.919 49.899 85.541 95.523 78.785 55.797 41.310 25.073 10.602 6.179 4.295 2.079 1.165 0.815 0.652
9.0 42.102 44.909 56.136 96.233 107.464 88.633 62.771 46.474 28.207 11.927 6.952 4.832 2.339 1.311 0.917 0.734
10.0 46.780 49.899 62.373 106.926 119.404 98.481 69.746 51.637 31.341 13.252 7.724 5.369 2.599 1.457 1.019 0.815
11.0 51.458 54.889 68.611 117.618 131.344 108.330 76.721 56.801 34.475 14.577 8.497 5.906 2.859 1.602 1.121 0.897
12.0 56.136 59.878 74.848 128.311 143.285 118.178 83.695 61.965 37.610 15.902 9.269 6.443 3.119 1.748 1.223 0.978
13.0 60.814 64.868 81.085 139.003 155.225 128.026 90.670 67.128 40.744 17.228 10.041 6.980 3.379 1.893 1.325 1.060
14.0 65.492 69.858 87.323 149.696 167.165 137.874 97.645 72.292 43.878 18.553 10.814 7.517 3.638 2.039 1.427 1.141
15.0 70.170 74.848 93.560 160.389 179.106 147.722 104.619 77.456 47.012 19.878 11.586 8.054 3.898 2.185 1.529 1.223
16.0 74.848 79.838 99.797 171.081 191.046 157.570 111.594 82.620 50.146 21.203 12.359 8.591 4.158 2.330 1.631 1.304
17.0 79.526 84.828 106.035 181.774 202.987 167.419 118.568 87.783 53.280 22.528 13.131 9.127 4.418 2.476 1.733 1.386
18.0 84.204 89.818 112.272 192.466 214.927 177.267 125.543 92.947 56.414 23.853 13.904 9.664 4.678 2.622 1.835 1.468
19.0 88.882 94.807 118.509 203.159 226.867 187.115 132.518 98.111 59.549 25.179 14.676 10.201 4.938 2.767 1.937 1.549
20.0 93.560 99.797 124.747 213.851 238.808 196.963 139.492 103.275 62.683 26.504 15.448 10.738 5.198 2.913 2.039 1.631
21.0 98.238 104.787 130.984 224.544 250.748 206.811 146.467 108.438 65.817 27.829 16.221 11.275 5.458 3.059 2.141 1.712
22.0 102.916 109.777 137.221 235.237 262.689 216.659 153.441 113.602 68.951 29.154 16.993 11.812 5.718 3.204 2.243 1.794
23.0 107.594 114.767 143.459 245.929 274.629 226.507 160.416 118.766 72.085 30.479 17.766 12.349 5.977 3.350 2.344 1.875
24.0 112.272 119.757 149.696 256.622 286.569 236.356 167.391 123.930 75.219 31.805 18.538 12.886 6.237 3.496 2.446 1.957
25.0 116.950 124.747 155.933 267.314 298.510 246.204 174.365 129.093 78.353 33.130 19.310 13.423 6.497 3.641 2.548 2.038
26.0 121.628 129.737 162.171 278.007 310.450 256.052 181.340 134.257 81.487 34.455 20.083 13.960 6.757 3.787 2.650 2.120
27.0 126.306 134.726 168.408 288.699 322.391 265.900 188.314 139.421 84.622 35.780 20.855 14.497 7.017 3.933 2.752 2.201
28.0 130.984 139.716 174.645 299.392 334.331 275.748 195.289 144.584 87.756 37.105 21.628 15.034 7.277 4.078 2.854 2.283
29.0 135.662 144.706 180.883 310.085 346.271 285.596 202.264 149.748 90.890 38.431 22.400 15.570 7.537 4.224 2.956 2.364
30.0 140.340 149.696 187.120 320.777 358.212 295.444 209.238 154.912 94.024 39.756 23.173 16.107 7.797 4.370 3.058 2.446
T M A
B D E tr
TRECAIDA M
I C 2 3
I I C I C I 1
2
0 I I I
0 0 0
M \
0 0.25 0.5 0.75 1.05 1.10 1.20 1.30 1.50 2.00 2.50 3.00 5.00 10.00 20.00 40.00
I/Io
0.5 3.004 3.204 4.005 6.866 7.373 6.063 4.307 3.220 2.000 0.872 0.499 0.330 0.124 0.049 0.030 0.024
1.0 6.008 6.409 8.011 13.733 14.746 12.125 8.615 6.439 4.001 1.744 0.997 0.659 0.247 0.098 0.060 0.048
2.0 12.016 12.817 16.021 27.465 29.492 24.250 17.230 12.879 8.002 3.489 1.994 1.319 0.495 0.196 0.119 0.095
3.0 18.024 19.226 24.032 41.198 44.239 36.376 25.844 19.318 12.003 5.233 2.992 1.978 0.742 0.295 0.179 0.143
4.0 24.032 25.634 32.043 54.930 58.985 48.501 34.459 25.758 16.004 6.977 3.989 2.638 0.990 0.393 0.239 0.191
5.0 30.040 32.043 40.053 68.663 73.731 60.626 43.074 32.197 20.004 8.722 4.986 3.297 1.237 0.491 0.298 0.238
6.0 36.048 38.451 48.064 82.395 88.477 72.751 51.689 38.636 24.005 10.466 5.983 3.956 1.484 0.589 0.358 0.286
7.0 42.056 44.860 56.075 96.128 103.224 84.876 60.303 45.076 28.006 12.210 6.981 4.616 1.732 0.688 0.418 0.334
8.0 48.064 51.268 64.085 109.861 117.970 97.002 68.918 51.515 32.007 13.955 7.978 5.275 1.979 0.786 0.477 0.381
9.0 54.072 57.677 72.096 123.593 132.716 109.127 77.533 57.954 36.008 15.699 8.975 5.934 2.227 0.884 0.537 0.429
10.0 60.080 64.085 80.107 137.326 147.462 121.252 86.148 64.394 40.009 17.443 9.972 6.594 2.474 0.982 0.597 0.476
11.0 66.088 70.494 88.117 151.058 162.208 133.377 94.763 70.833 44.010 19.188 10.969 7.253 2.722 1.081 0.656 0.524
12.0 72.096 76.902 96.128 164.791 176.955 145.502 103.377 77.273 48.011 20.932 11.967 7.913 2.969 1.179 0.716 0.572
13.0 78.104 83.311 104.139 178.523 191.701 157.628 111.992 83.712 52.012 22.676 12.964 8.572 3.216 1.277 0.776 0.619
14.0 84.112 89.719 112.149 192.256 206.447 169.753 120.607 90.151 56.013 24.421 13.961 9.231 3.464 1.375 0.835 0.667
15.0 90.120 96.128 120.160 205.989 221.193 181.878 129.222 96.591 60.013 26.165 14.958 9.891 3.711 1.474 0.895 0.715
16.0 96.128 102.537 128.171 219.721 235.940 194.003 137.837 103.030 64.014 27.909 15.956 10.550 3.959 1.572 0.955 0.762
17.0 102.136 108.945 136.181 233.454 250.686 206.128 146.451 109.470 68.015 29.654 16.953 11.210 4.206 1.670 1.014 0.810
18.0 108.144 115.354 144.192 247.186 265.432 218.254 155.066 115.909 72.016 31.398 17.950 11.869 4.453 1.768 1.074 0.858
19.0 114.152 121.762 152.203 260.919 280.178 230.379 163.681 122.348 76.017 33.142 18.947 12.528 4.701 1.866 1.134 0.905
20.0 120.160 128.171 160.213 274.651 294.924 242.504 172.296 128.788 80.018 34.887 19.944 13.188 4.948 1.965 1.194 0.953
21.0 126.168 134.579 168.224 288.384 309.671 254.629 180.910 135.227 84.019 36.631 20.942 13.847 5.196 2.063 1.253 1.001
22.0 132.176 140.988 176.235 302.117 324.417 266.754 189.525 141.666 88.020 38.375 21.939 14.506 5.443 2.161 1.313 1.048
23.0 138.184 147.396 184.245 315.849 339.163 278.879 198.140 148.106 92.021 40.120 22.936 15.166 5.691 2.259 1.373 1.096
24.0 144.192 153.805 192.256 329.582 353.909 291.005 206.755 154.545 96.022 41.864 23.933 15.825 5.938 2.358 1.432 1.144
25.0 150.200 160.213 200.267 343.314 368.655 303.130 215.370 160.985 100.022 43.608 24.931 16.485 6.185 2.456 1.492 1.191
26.0 156.208 166.622 208.277 357.047 383.402 315.255 223.984 167.424 104.023 45.353 25.928 17.144 6.433 2.554 1.552 1.239
27.0 162.216 173.030 216.288 370.779 398.148 327.380 232.599 173.863 108.024 47.097 26.925 17.803 6.680 2.652 1.611 1.286
28.0 168.224 179.439 224.299 384.512 412.894 339.505 241.214 180.303 112.025 48.841 27.922 18.463 6.928 2.751 1.671 1.334
29.0 174.232 185.847 232.309 398.245 427.640 351.631 249.829 186.742 116.026 50.586 28.920 19.122 7.175 2.849 1.731 1.382
30.0 180.240 192.256 240.320 411.977 442.387 363.756 258.444 193.182 120.027 52.330 29.917 19.782 7.422 2.947 1.790 1.429
T M A
B D E tr
TRECAIDA M
C
I 2 3
I I C I C
2
I 1
0 I I I
0 0 0
A = 0.1735, B = 0.6791, C = 0.8000, D = -0.0800, E = 0.1271 tr = 1.2
M \
0 0.25 0.5 0.75 1.05 1.10 1.20 1.30 1.50 2.00 2.50 3.00 5.00 10.00 20.00 40.00
I/Io
0.5 0.600 0.640 0.800 1.371 4.872 3.128 1.679 1.114 0.675 0.379 0.286 0.239 0.166 0.123 0.104 0.095
1.0 1.200 1.280 1.600 2.743 9.744 6.256 3.357 2.229 1.351 0.757 0.571 0.478 0.332 0.247 0.209 0.191
2.0 2.400 2.560 3.200 5.486 19.489 12.511 6.714 4.457 2.702 1.515 1.142 0.955 0.665 0.493 0.417 0.382
3.0 3.600 3.840 4.800 8.229 29.233 18.767 10.072 6.686 4.053 2.272 1.713 1.433 0.997 0.740 0.626 0.572
4.0 4.800 5.120 6.400 10.971 38.977 25.023 13.429 8.914 5.404 3.030 2.285 1.910 1.329 0.986 0.835 0.763
5.0 6.000 6.400 8.000 13.714 48.722 31.278 16.786 11.143 6.755 3.787 2.856 2.388 1.662 1.233 1.043 0.954
6.0 7.200 7.680 9.600 16.457 58.466 37.534 20.143 13.371 8.106 4.544 3.427 2.866 1.994 1.479 1.252 1.145
7.0 8.400 8.960 11.200 19.200 68.210 43.790 23.500 15.600 9.457 5.302 3.998 3.343 2.327 1.726 1.461 1.335
8.0 9.600 10.240 12.800 21.943 77.954 50.045 26.857 17.828 10.807 6.059 4.569 3.821 2.659 1.972 1.669 1.526
9.0 10.800 11.520 14.400 24.686 87.699 56.301 30.215 20.057 12.158 6.817 5.140 4.298 2.991 2.219 1.878 1.717
10.0 12.000 12.800 16.000 27.429 97.443 62.557 33.572 22.285 13.509 7.574 5.712 4.776 3.324 2.465 2.087 1.908
11.0 13.200 14.080 17.600 30.171 107.187 68.813 36.929 24.514 14.860 8.332 6.283 5.253 3.656 2.712 2.295 2.099
12.0 14.400 15.360 19.200 32.914 116.932 75.068 40.286 26.742 16.211 9.089 6.854 5.731 3.988 2.958 2.504 2.289
13.0 15.600 16.640 20.800 35.657 126.676 81.324 43.643 28.971 17.562 9.846 7.425 6.209 4.321 3.205 2.713 2.480
14.0 16.800 17.920 22.400 38.400 136.420 87.580 47.001 31.199 18.913 10.604 7.996 6.686 4.653 3.451 2.921 2.671
15.0 18.000 19.200 24.000 41.143 146.165 93.835 50.358 33.428 20.264 11.361 8.567 7.164 4.986 3.698 3.130 2.862
16.0 19.200 20.480 25.600 43.886 155.909 100.091 53.715 35.656 21.615 12.119 9.139 7.641 5.318 3.945 3.339 3.052
17.0 20.400 21.760 27.200 46.629 165.653 106.347 57.072 37.885 22.966 12.876 9.710 8.119 5.650 4.191 3.547 3.243
18.0 21.600 23.040 28.800 49.371 175.398 112.602 60.429 40.113 24.317 13.633 10.281 8.597 5.983 4.438 3.756 3.434
19.0 22.800 24.320 30.400 52.114 185.142 118.858 63.787 42.342 25.668 14.391 10.852 9.074 6.315 4.684 3.965 3.625
20.0 24.000 25.600 32.000 54.857 194.886 125.114 67.144 44.570 27.019 15.148 11.423 9.552 6.647 4.931 4.173 3.815
21.0 25.200 26.880 33.600 57.600 204.630 131.369 70.501 46.799 28.370 15.906 11.994 10.029 6.980 5.177 4.382 4.006
22.0 26.400 28.160 35.200 60.343 214.375 137.625 73.858 49.027 29.720 16.663 12.565 10.507 7.312 5.424 4.591 4.197
23.0 27.600 29.440 36.800 63.086 224.119 143.881 77.215 51.256 31.071 17.421 13.137 10.985 7.645 5.670 4.799 4.388
24.0 28.800 30.720 38.400 65.829 233.863 150.136 80.572 53.484 32.422 18.178 13.708 11.462 7.977 5.917 5.008 4.579
25.0 30.000 32.000 40.000 68.571 243.608 156.392 83.930 55.713 33.773 18.935 14.279 11.940 8.309 6.163 5.217 4.769
26.0 31.200 33.280 41.600 71.314 253.352 162.648 87.287 57.941 35.124 19.693 14.850 12.417 8.642 6.410 5.425 4.960
27.0 32.400 34.560 43.200 74.057 263.096 168.903 90.644 60.170 36.475 20.450 15.421 12.895 8.974 6.656 5.634 5.151
28.0 33.600 35.840 44.800 76.800 272.841 175.159 94.001 62.398 37.826 21.208 15.992 13.373 9.306 6.903 5.843 5.342
29.0 34.800 37.120 46.400 79.543 282.585 181.415 97.358 64.627 39.177 21.965 16.564 13.850 9.639 7.149 6.051 5.532
30.0 36.000 38.400 48.000 82.286 292.329 187.671 100.716 66.855 40.528 22.722 17.135 14.328 9.971 7.396 6.260 5.723
The user can programme FOUR curves by entering the desired points into the “User curve 1”
to “User curve 4” user curve nodes.
The time corresponding to each I/Ia is programmed in seconds, with a minimum value of 0.020
seconds. These times correspond to the curve of index 1, but as in curves IEC, the user can
programme a time index between 0.05 and 1.09 in the overcurrent protection settings.
It is not necessary to programme all the points on the curve, the unit will assign the time
of the first programmed point to all those I/Ia of a lower value and the last programmed
time to all those of a higher I/Ia, that is to say, the graph will generally start and
finish with straight, horizontal lines. The points between the two programmed points will
be calculated by the console as a lineal interpolation.
I/Ia values for times which are superior to that which corresponds to an inferior I/Ia are
not admitted, that is to say, ascendant straight lines are not allowed.
Crv0 (Low Frame Curve). For setting (milliseconds) the activation times for 1.03
and 1.05 I/IAJ ratios.
Crv1 (Medium Frame Curve). For setting (milliseconds) the activation times for 1.1
and 4 I/IAJ ratios, with steps of 0.1.
Crv1 (High Frame Curve). For setting (milliseconds) the activation times for 4 and
20 I/IAJ ratios, with steps of 0.5.
The programming carried out via PacFactory is done using the programming screen shown in
Figure 183, in which:
The times of the curves different points are entered (left table) and the curve’s
graph is displayed (right table).
Interpolate points of the curve and enter the known points. By clicking on
“Calculate Curve Values”, the missing values are calculated for the curve.
Reset the curve values “Reset PC column”.
“Save values”. Saves the values entered in order to send them to unit.
“Close”. Returns to the general settings screen, from where they can be sent to the
unit.
I/Ia 2 4 8 12 15
The available signals indicate faults in the card check, in the communications between the
cards, in the unit’s configuration, etc.
Status report
Incident report
Sequence of events (SOE)
Digital outputs and CPU hardware alarm output.
IHMI leds and status leds
The errors can be critical and non critical, depending on the effect they have in the
device.
Critical errors
Critical hardware error. Indicates that a critical error has been produced. In addition to
this signal, the cause that produced the signal will be indicated.
If the error affects the unit’s operation, a critical error is generated, which in addition
to the signal acts on:
Colour front LED. Non-configurable status LED, which indicates the unit’s general
status. If the LED is green, it indicates that everything is correct, while if it
is red it indicates a critical error in the unit.
CPU Relay. Non-configurable 3-contact relay, which indicates the unit’s general
status. If the LED is active (common terminal – NO), it indicates that everything
is correct, while if it is deactivated (common terminal– NC) it indicates a
critical error in the unit. If the unit is switched off, the relay is deactivated.
The causes that produce errors are:
CPU error. Indicates that the check has detected an error in the CPU
Analogue error. Indicates an error in transformers card.
I/O micro error. Indicates an error in the I/O cards’ micro.
Analogue connection error. Indicates that a fault has been produced in the
communications between the CPU and the transformers card.
I/O connection error. Indicates that a fault has been produced in the communication
between the CPU and an I/O card. Additionally, it will indicate the card which has
suffered the failure:
Error card address x. Indicates that there is a communication error with
the card with the address x.
Front connection error. Indicates that a fault has been produced in the
communications between the CPU and the unit’s front card.
Shared analogue memory error. Indicates that a fault has been produced in the Data
exchange memory between the CPU and the transformers card.
Error shared I/O memory. Indicates that a fault has been produced in the Data
exchange memory between the CPU and the I/O cards.
Alarm settings. Indicates that errors have been detected in the storage of the
unit’s settings.
Memory check alarm. Indicates that errors have been detected in the checking of the
unit’s memory.
Converter check alarm. Indicates that errors have been detected in the transformers
card AD converter.
Converter voltage level alarm. Indicates that errors have been detected in the
transformers card reference voltages..
Relay activation alarm. Indicates that an error has been detected in the activation
of at least one of the I/O cards’ relays.
I/O configuration error. Indicates that the configuration of the I/O cards does not
coincide with the unit’s correct configuration.
General Vdc error. Indicates a failure in the internal power supply levels.
For each I/O card there is are 5 signals, indicating:
Status OK. Indicates that the card is configured correctly and without errors
Configured & No_detected. Indicates that the card is configured by the user, but
not detected in the unit. This may be because it is not assembled or because it
has an error. Equivalent to the current communication error.
Different configuration. The type indicated by the user and the type detected by
the unit do not coincide.
No_configured & detected. Indicates that card that has not been configured by
the user has been detected in an address.
Internal card error. A card check error has been received (includes relay
check).
RTC clock error. Indicates that the check has detected an error in the real time
clock.
Continuous component monitoring alarm. Indicates that an error in the continuous
measurement monitoring has been detected in the transformers card.
Frequency configuration error. This is not a unit failure, but rather a
configuration failure. Indicates that the frequency measurement of the signals
being injected into the unit do not match the set measurement, that is, the unit is
configured as 50Hz and the signals which are being injected are greater than 55Hz;
or that the unit is configured as 60 Hz and the signals being injected are less
than 55 Hz.
Internal battery failure. Indicates that the data storage battery is below the
security levels and that the data may be lost at shutdown.
Version compatibility error. Indicates that the versions of the unit's firmware are
not correct.
Time setting configuration alarm. Indicates that there is an error in the
configuration of the unit’s time setting.
Status report:
Figure 184 shows the screen of the PacFactory that show the available check signals.
The example screen shows activation of critical error (HW error), generated by I/O
configuration error (card 2 is not detected). It also indicates Internal battery failure.
On the other hand, it shows I/O card 1 is correct.
The leds and digital output can be configured with any of the error signals
If the device is off, check that the power supply is correct. If the device is well
supplied, contact the technical service
If the device is on but it shows failure, return to the events screen and check
which type of error it is
If critical error, with no specific indication, is shown and the error
persists after turning the unit off and on, contact the technical service.
If converter or reference voltage error is shown. Check the Measurements,
and if they are correct, turn off and on the unit; if the error does not
disappear, contact the technical service.
If Clock error is shown, synchronize manually. If the error persists,
contact the technical service.
If error in the setting is shown, send the settings again. If error
persists contact the technical service