7SA6 Catalog SIP E7
7SA6 Catalog SIP E7
7SA6 Catalog SIP E7
Function overview
Protection functions 1
• Non-switched distance protection with
6 measuring systems (21/21N)
• High resistance ground-fault protection
for single and three-pole tripping (50N, 2
51N, 67N)
• Ground-fault detection in isolated and
resonant-grounded networks
• Tele (pilot) protection (85)
3
• Fault locator (FL)
• Power-swing detection/tripping (68/68T)
• Phase overcurrent protection (50/51/67) 4
LSP2318-afp.tif
• Switch-onto-fault protection (50HS)
• STUB bus overcurrent protection
(50STUB)
• Overvoltage/undervoltage protection
5
(59/27)
• Over/underfrequency protection 81O/U)
Application
25 Synchro-check
13 79 Auto-reclosure
15
6/4 Siemens SIP · Edition No. 7
Distance Protection 7SA6
Construction
Construction
LSP2174-afp.tif
3
LSP2166-afp.tif
for flush-mounting housings and 266 mm
for surface-mounting housings for all
housing widths. All cables can be con-
nected with or without ring lugs. Plug-in
terminals are available as an option. 4
It is thus possible to employ prefabricated
cable harnesses. In the case of surface Fig. 6/3 Flush-mounting housing Fig. 6/4 Rear view of flush-mounting housing
mounting on a panel, the connection with screw-type terminals with covered connection terminals
terminals are located above and below
in the form of screw-type terminals. The
and wirings 5
communication interfaces are located
in a sloped case at the top and bottom
of the housing. The housing can also
be supplied optionally with a detached
6
operator panel (refer to Fig. 6/5), in order
to allow optimum operation for all types
of applications.
7
LSP2244-afp.eps
9
Fig. 6/5 Flush-mounting housing with plug-in terminals and detached operator panel
10
11
12
LSP2219-afp.eps
13
LSP2237-afp.tif
14
Fig. 6/6 Surface-mounting housing with Fig. 6/7 Communication interfaces in a
screw-type terminals sloped case in a surface-mounting
housing 15
Siemens SIP · Edition No. 7 6/5
Distance Protection 7SA6
Protection functions
Protection functions
10 tripping.
Absolute phase-selectivity
overcurrent fault detection V / I / φ detection
14
LSP2209-afp.tif
to medium-voltage cables with low line
angles, it may be advantageous to select
4
the distance zones with the optional circle
characteristic.
All the distance protection zones can be
set to forward, reverse or non-directional. Fig. 6/12 Power swing current and voltage wave forms 5
Optimum direction detection Tele (pilot) protection for distance protection (ANSI 85-21)
Use of voltages, which are not involved with the short-circuit
loop, and of voltage memories for determination of the fault
direction ensure that the results are always reliable.
A teleprotection function is available for fast clearance of faults
up to 100 % of the line length. The following operating modes 6
may be selected:
Elimination of interference signals • POTT
Digital filters render the unit immune to interference signals
contained in the measured values. In particular, the influence of
DC components, capacitive voltage transformers and frequency
• Directional comparison pickup
• Unblocking
7
changes is considerably reduced. A special measuring method is • PUTT acceleration with pickup
employed in order to assure protection selectivity during satura- • PUTT acceleration with Z1B
tion of the current transformers.
• Blocking 8
Measuring voltage monitoring • Pilot-wire comparison
Tripping of the distance protection is blocked automatically in
• Reverse interlocking
the event of failure of the measuring voltage, thus preventing
spurious tripping.
The measuring voltage is monitored by the integrated fuse fail-
• DUTT, direct underreaching zone transfer trip (together with
Direct Transfer Trip function).
9
ure monitor. Distance protection is blocked if either the fuse fail- The carrier send and receive signals are available as binary inputs
ure monitor or the auxiliary contact of the voltage transformer and outputs and can be freely assigned to each physical relay input
protection switch operates and in this case the EMERGENCY
definite-time overcurrent protection can be activated.
or output. At least one channel is required for each direction. 10
Common transmission channels are powerline carrier, micro-
Fault locator wave radio and fiber-optic links. A serial protection data inter-
face for direct connection to a digital communication network or
The integrated fault locator calculates the fault impedance
and the distance-to-fault. The results are displayed in ohms,
fiber-optic link is available. 11
kilometers (miles) and in percent of the line length. Parallel 7SA6 also permits the transfer of phase-selective signals. This
line compensation and load current compensation for high- feature is particularly advantageous as it ensures reliable single-
resistance faults is also available. pole tripping, if single-pole faults occur on different lines. The
transmission methods are suitable also for lines with three ends 12
Power swing detection (ANSI 68, 68T) (three-terminal lines). Phase-selective transmission is also pos-
Dynamic transient reactions, for instance short-circuits, load sible with multi-end application, if some user-specific linkages
are implemented by way of the integrated CFC logic.
fluctuations, auto-reclosures or switching operations can cause
power swings in the transmission network. During power During disturbances in the signaling channel receiver or on the
13
swings, large currents along with small voltages can cause transmission circuit, the teleprotection function can be blocked
unwanted tripping of distance protection relays. To avoid via a binary input signal without losing the zone selectivity.
uncontrolled tripping of the distance protection and to achieve
controlled tripping in the event of loss of synchronism, the
7SA6 relay is equipped with an efficient power swing detection
The control of the overreach zone Z1B (zone extension) can be
switched over to the auto-reclosure function. Transient blocking
14
function. Power swings can be detected under symmetrical load (current reversal guard) is provided for all the release and block-
conditions as well as during single-pole auto-reclosures. ing methods in order to suppress interference signals during
tripping of parallel lines.
15
Siemens SIP · Edition No. 7 6/7
Distance Protection 7SA6
Protection functions
Weak-infeed protection:
3 echo and/or trip (ANSI 27 WI)
To prevent delayed tripping of permissive
schemes during weak or zero infeed
LSP2209-afp.tif
situations, an echo function is provided.
4 If no fault detector is picked up at the
weak-infeed end of the line, the signal
received here is returned as echo to allow
accelerated tripping at the strong infeed
for the remote end of the line (compounding) Inverse-time characteristics according to IEC 60255-3 and
ANSI/IEEE are provided (see “Technical data”). A 4th definite-time
• Negative-sequence overvoltage
stage can be applied instead of the 1st inverse-time stage.
11 Tripping by the overvoltage measuring elements can be effected
either at the local circuit-breaker or at the remote station by
An additional logarithmic inverse-time characteristic is also
available.
means of a transmitted signal.
The direction decision is determined by the ground current
The 7SA6 is fitted, in addition, with three two-stage undervolt-
12 age measuring elements:
and the zero-sequence voltage or by the negative-sequence
components V2 and I2. In addition or as an alternative, the direc-
• Phase-to-ground undervoltage tion can be determined with the ground current of an grounded
• Phase-to-phase undervoltage power transformer and the zero-sequence voltage. Dual
polarization applications can therefore be fulfilled. Alternatively,
13 • Positive-sequence undervoltage
The undervoltage measuring elements can be blocked by means
the direction can be determined by evaluation of zero-sequence
power. Each overcurrent stage can be set in forward or reverse
of a minimum current criterion and by means of binary inputs. direction or in both directions (non-directional).
Inrush stabilization and instantaneous switch-onto-fault tripping • Determination of the faulted phase by measurement of the
can be activated separately for each stage as well. phase-to-ground voltage
Different operating modes can be selected. The ground-fault • Determination of the ground-fault direction by highly accurate 1
protection is suitable for three-phase and, optionally, for single- measurement of the active and reactive power components in
phase tripping by means of a sophisticated phase selector. It the residual ground fault current.
may be blocked during the dead time of single-pole auto-reclose • Alarm or trip output can be selected in the event of an ground-
cycles or during pickup of the distance protection. fault in the forward direction. 2
• Operation measurement of the active and reactive component
Tele (pilot) protection for directional ground-fault protection
in the residual ground current during an ground-fault.
(ANSI 85-67N)
The directional ground-fault protection can be combined with
Ground-fault direction detection can also be effected on the
basis of the transient ground-fault principle by interfacing with
3
the available signaling methods:
the additional unit 7SN60 (see Fig. 6/14). Procedures for log-
• Directional comparison ging, time stamping and event recording for the network control
system are standardized by the 7SA6.
• BLOCKING
• UNBLOCKING
Breaker failure protection (ANSI 50BF)
4
The transient blocking function (current reversal guard) is also
The 7SA6 relay incorporates a two-stage breaker failure
provided in order to suppress interference signals during tripping
protection to detect failures of tripping command execution,
of parallel lines.
for example, due to a defective circuit-breaker. The current 5
The pilot functions for distance protection and for ground-fault detection logic is phase-selective and can therefore also be used
protection can use the same signaling channel or two separate in single-pole tripping schemes. If the fault current is not inter-
and redundant channels. rupted after a settable time delay has expired, a retrip command
Ground-fault detection in systems with a star-point that is • Control of the internal AR function by external protection 13
not effectively grounded • Interaction with the internal or an external synchro-check
In systems with an isolated or resonant grounded (grounded) • Monitoring of the circuit-breaker auxiliary contacts
star-point, single-phase ground faults can be detected. The
following functions are integrated for this purpose:
In addition to the above-mentioned operating modes, several
other operating principles can be employed by means of the
14
• Detection of an ground fault by monitoring of the displace- integrated programmable logic (CFC).
ment voltage
15
Siemens SIP · Edition No. 7 6/9
Distance Protection 7SA6
Protection functions
LSA_5019a en eps
LSA_5018a en eps
• ADT
The adaptive dead time is employed Capacitive (-Q)
only if auto-reclosure at the remote sta-
4 tion was successful (reduction of stress
on equipment). Fig. 6/15 Monitoring of active power Fig. 6/16 Monitoring of reactive power
• RDT direction
Reduced dead time is employed in
5 conjunction with auto-reclosure where no teleprotection
method is employed: When faults within the zone extension
Directional power protection
The 7SA6 has a function for detecting the power direction by
but external to the protected line are switched off for rapid
measuring the phase angle of the positive-sequence system's
auto-reclosure (RAR), the RDT function decides on the basis of
power. Fig. 6/15 shows an application example displaying nega-
6 measurement of the return voltage from the remote station
which has not tripped whether or not to reduce the dead time.
tive active power. An indication is issued in the case when the
measured angle φ (S1) of the positive-sequence system power is
Synchronism check (ANSI 25) within the P - Q - level sector. This sector is between angles φ A
and φ B. Via CFC the output signal of the directional monitoring
7 Where two network sections are switched in by control com-
mand or following a 3-pole auto-reclosure, it must be ensured
can be linked to the "Direct Transfer Trip (DTT)" function and
thus, as reverse power protection, initiate tripping of the CB.
that both network sections are mutually synchronous. For this
purpose a synchro-check function is provided. After verification Fig. 6/16 shows another application displaying capacitive
reactive power. In the case of overvoltage being detected due
8 of the network synchronism, the function releases the CLOSE
command. Alternatively, reclosing can be enabled for different to long lines under no-load conditions it is possible to select the
criteria, e.g. checking that the busbar or line is not carrying a lines where capacitive reactive power is measured.
voltage (dead line or dead bus).
Trip circuit supervision (ANSI 74TC)
9 Fuse failure monitoring and other supervision functions One or two binary inputs for each circuit-breaker pole can be
The 7SA6 relay provides comprehensive supervision functions used for monitoring the circuit-breaker trip coils including the
covering both hardware and software. Furthermore, the mea- connecting cables. An alarm signal is issued whenever the circuit
sured values are continuously checked for plausibility. Therefore is interrupted.
10 the current and voltage transformers are also included in this
supervision system.
Lockout (ANSI 86)
Under certain operating conditions it is advisable to block CLOSE
If any measured voltage is not present due to short-circuit or
commands after a TRIP command of the relay has been issued.
open circuit in the voltage transformer secondary circuit, the
11 distance protection would respond with an unwanted trip due to
Only a manual “RESET” command unblocks the CLOSE command.
The 7SA6 is equipped with such an interlocking logic.
this loss of voltage.
This secondary voltage interruption can be detected by means Thermal overload protection (ANSI 49)
15
6/10 Siemens SIP · Edition No. 7
Distance Protection 7SA6
Protection functions
Analog output 0 to 20 mA
2
Some measured values can be output as
analog values (0 to 20 mA). On a plug-in
module (Fig. 6/24) two analog channels 3
are made available. Up to two plug-in
modules can be installed in the 7SA6. As
an option, 2, 4 or no analog channels are
available (please refer to the selection
and ordering data). The measured values
4
available for output are listed in the
technical data.
LSP2819.tif
analyzing
Special attention has been paid to com-
missioning. All binary inputs and outputs
can be displayed and activated directly. Fig. 6/17 Web Monitor: Supported commissioning by phasor diagram
6
This can simplify the wiring check
significantly for the user. The operational
and fault events and the fault records are
clearly arranged. For applications with 7
serial protection data interface, all cur-
rents, voltages and phases are available
via communication link at each local unit,
displayed at the front of the unit with
DIGSI 4 or with WEB Monitor. A common
8
time tagging facilitates the comparison of
events and fault records.
14
15
Siemens SIP · Edition No. 7 6/11
Distance Protection 7SA6
Communication
Communication
Local PC interface
15
6/12 Siemens SIP · Edition No. 7
Distance Protection 7SA6
Communication
LSP2162-afpen.tif
IEC 60870-5-103 is an internationally
standardized protocol for efficient com- 1
munication with protection relays.
IEC 60870-5-103 is supported by a
LSP3.01-0021.tif
number of protection device manufactur-
ers and is used worldwide. Supplements
for control functions are defined in
2
the manufacturer-specific part of this
standard.
PROFIBUS-DP
3
PROFIBUS-DP is an industrial communica-
Fig. 6/21 820 nm fiber-optic communication Fig. 6/22 Fiber-optic Ethernet communication
tions standard and is supported by a
module module for IEC 61850 with
number of PLC and protection device
manufacturers.
integrated Ethernet switch 4
DNP 3.0
LSP2163-afpen.tif
DNP 3.0 (Distributed Network Protocol,
Version 3) is an internationally recognized
5
protection and bay unit communication
protocol. SIPROTEC 4 units are Level 1 and
Level 2 compatible.
6
Analog outputs 0 to 20 mA
LSP2207-afp.tif
2 or 4 analog output interfaces for trans-
mission of measured or fault location
values are available for the 7SA6. Two 7
analog output interfaces are provided
in an analog output module. Up to two Fig. 6/23 RS232/RS485 electrical Fig. 6/24 Output module 0 to 20 mA,
analog output modules can be inserted
per unit.
communication module 2 channels
8
10
11
12
13
15
Siemens SIP · Edition No. 7 6/13
Distance Protection 7SA6
Communication
System solutions for protection and station control The communication possibilities are identical to those for the
line differential protection relays 7SD5 and 7SD610. The follow-
1 Together with the SICAM power automation system, SIPROTEC 4
can be used with PROFIBUS-FMS. Over the low-cost electrical
ing options are available:
RS485 bus, or interference-free via the optical double ring, • FO51), OMA12) module: Optical 820 nm, 2 ST connectors,
the units exchange information with the control system. Units FO cable length up to 1.5 km for link to communication
equipped with IEC 60870-5-103 interfaces can be connected networks via communication converters or for direct FO cable
2 to SICAM in parallel via the RS485 bus or connected in star by connection
fiber-optic link. Through this interface, the system is open for • FO61), OMA22) module: Optical 820 nm, 2 ST connectors,
the connection of units of other manufacturers (see Fig. 6/25). FO cable length up to 3.5 km, for direct connection via multi-
mode FO cable
Because of the standardized interfaces, SIPROTEC units can also
3 be integrated into systems of other manufacturers or in SIMATIC. • FO171): For direct connection up to 24 km3), 1300 nm, for
mono-mode fiber 9/125 μm, LC-Duplex connector
Electrical RS485 or optical interfaces are available. The optimum
physical data transfer medium can be chosen thanks to opto- • FO181): For direct connection up to 60 km3) 1300 nm, for
electrical converters. Thus, the RS485 bus allows low-cost wiring mono-mode fiber 9/125 μm, LC-Duplex connector
4 in the cubicles and an interference-free optical connection to the
master can be established.
• FO191): For direct connection up to 100 km3) 1550 nm, for
mono-mode fiber 9/125 μm, LC-Duplex connector
For IEC 61850, an interoperable system solution is offered with • FO301): For transmission with the IEEE C37.94 standard.
SICAM PAS. Via the 100 Mbits/s Ethernet bus, the units are linked
5 with PAS electrically or optically to the station PC. The interface
The link to a multiplexed communication network is made by
separate communication converters (7XV5662). These have
is standardized, thus also enabling direct connection of units
a fiber-optic interface with 820 nm and ST connectors to the
of other manufacturers to the Ethernet bus. With IEC 61850,
protection relay. The link to the communication network is
however, the units can also be used in other manufacturers’
6 systems. Units with an IEC 60870-5-103 interface are connected
with PAS via the Ethernet station bus by means of serial/Ethernet
optionally an electrical X21 or a G703.1 interface. If the connec-
tion to the multiplexor supports IEEE C37.94, a direct fibre optic
connection to the relay is possible using the FO30 module.
converters. DIGSI and the Web monitor can also be used via the
same station bus. For operation via copper wire communication (pilot wires), a
7 Serial protection data interface
modern communication converter for copper cables is available.
This operates with both the two-wire and three-wire copper con-
The tele (pilot) protection schemes can be implemented using nections which were used by conventional differential protection
digital serial communication. The 7SA6 is capable of remote systems before. The communication converter for copper cables
10 • Echo-function
• Two and three-terminal line applications can be implemented
• Supported network interfaces G703.1 with 64 kBit/s;
X21/RS422 with 64 or 128 or 512 kBit/s; IEEE C37.94
without additional logic • Max. channel delay time 0.1 ms to 30 ms (in steps of 0.1 ms)
• Interclose command transfer with the auto-reclosure “Adaptive • Protocol HDLC
11 dead time” (ADT) mode • 32-bit CRC-check according to CCITT and ITU
• 28 remote signals for fast transfer of binary signals • Each protection relay possesses a unique relay address
• Flexible utilisation of the communication channels by means • Continuous communication link supervision: Individual faulty
of the programmable CFC logic data telegrams do not constitute an immediate danger, if
12 • Display of the operational measured values of the opposite they occur only sporadically. The statistical availability, per
terminal(s) with phase-angle information relative to a common minute and hour, of the serial protection data interface can be
reference vector displayed.
10
11
12
Fig. 6/26 Communication topologies for the serial protection data interface on a two-terminal line
13
14
15
Siemens SIP · Edition No. 7 6/15
Distance Protection 7SA6
Communication
5 Ring topology
9
Chain topology
10
Fig. 6/27 Ring or chain communication topology
11
12
13
14
15
6/16 Siemens SIP · Edition No. 7
Distance Protection 7SA6
Typical connection
Typical connection
Connection of current 1
and voltage transformers
3 phase current transformers with neutral
point in the line direction, I4 connected as
summation current transformer (= 3I0): 2
Holmgreen circuit
3 voltage transformers, without connection
of the broken (open) delta winding on
the line side; the 3V0 voltage is derived
3
internally.
4
Fig. 6/28 Example of connection for current and voltage transformers
5
Alternative current measurement
The 3 phase current transformers are 6
connected in the usual manner. The neutral
point is in line direction. I4 is connected to
a separate neutral core-balance CT, thus
permitting a high sensitive 3I0 measure-
ment.
7
Note: Terminal Q7 of the I4 transformer
must be connected to the terminal of
the core balance CT pointing in the same 8
direction as the neutral point of the phase
current transformers (in this case in line
direction). The voltage connection is
effected in accordance with Fig. 6/28, 6/32
or 6/33.
9
Fig. 6/29 Alternative connection of current transformers for sensitive
ground-current measuring with core-balance current transformers 10
11
12
13
14
15
Siemens SIP · Edition No. 7 6/17
Distance Protection 7SA6
Typical connection
11
12
13
14
15
6/18 Siemens SIP · Edition No. 7
Distance Protection 7SA6
Typical connection
4
Fig. 6/32 Alternative connection of voltage transformers for measuring the
displacement voltage (e-n voltage) 5
11
12
13
14
15
Siemens SIP · Edition No. 7 6/19
Distance Protection 7SA6
Technical data
7 Permissible tolerance
Superimposed AC voltage
-20 % to +20 %
≤ 15 %
Power relay
for direct control of disconnector
(peak-to-peak) actuator motors
Power consumption Switching capacity
Quiescent Approx. 5 W Make for 48 to 250 V 1000 W/ VA
8 Energized Approx. 12 W to 18 W, depending on
design
Break
Make
for 48 to 250 V
for 24 V
1000 W/ VA
500 W/ VA
Break for 24 V 500 W/ VA
Bridging time during failure of the
auxiliary voltage Switching voltage 250 V
14
1) Can be set via jumpers.
15 2) Each pair of power relays is mechanically
interlocked to prevent simultaneous closing.
Baud rate
(SUB-D)
4800 to 115200 baud
FO181): for direct connection up
to 60 km3), 1300 nm
For mono-mode fiber 9/125 μm,
LC-Duplex connector
6
setting as supplied: 38400 baud; Permissible fiber attenuation 29 dB
parity 8E1 FO191): for direct connection up For mono-mode fiber 9/125 μm,
to 100 km3), 1550 nm
Time synchronization
DCF77/ IRIG-B signal (format IRIG-B000)
LC-Duplex connector
Permissible fiber attenuation 29 dB 7
Connection 9-pin subminiature connector Relay communication equipment
(SUB-D) External communication converter 7XV5662-0AA00 with X21/ RS422 or
(terminal with surface-mounting G703.1 interface
housing) External communication conver- Electrical X21/RS422 or G703.1 8
Voltage levels 5 V, 12 V or 24 V (optional) ter for linking the optical 820 nm interface settable by jumper
Service / modem interface for DIGSI4 / modem / service interface of the unit (FO5/OMA1 Baud rate settable by jumper
option with clock recovery) to the
Isolated RS232/RS485 9-pin subminiature connector
Dielectric test
(SUB-D)
500 V / 50 Hz
X21/RS422/G703.1 interface of
the communication network 9
Distance for RS232 Max. 15 m FO interface with 820 nm with Max. 1.5 km with 62.5/125 µm
Distance for RS485 Max. 1000 m clock recovery multi- mode fiber to protection relay
Electrical X21/RS422 interface 64/128/512 kbit (settable by jumper)
System interface
IEC 61850 Ethernet
max. 800 m, 15-pin connector to the
communication network
10
IEC 60870-5-103 protocol
Electrical G703.1 interface 64 kbit/s max. 800 m, screw-type
PROFIBUS-FMS
terminal to the communication
PROFIBUS-DP
Isolated RS232/RS485
DNP 3.0
9-pin subminiature connector
network
External communication converter 7XV5662-0AC00 for pilot wires
11
(SUB-D) External communication conver- Typical distance: 15 km max.
Baud rate 4800 to 38400 baud ter for linking the optical 820 nm
Dielectric test 500 V / 50 Hz interface of the unit (FO5/OMA1
Distance for RS232
Distance for RS485
Max. 15 m
Max. 1000 m
option with clock recovery) to
pilot wires.
12
PROFIBUS RS485 FO interface for 820 nm with
Dielectric test 500 V / 50 Hz clock recovery Max. 1.5 km with 62.5/125 µm
Baud rate
Distance
Max. 12 Mbaud
1 km at 93.75 kBd; 100 m at 12 MBd
multimode fiber to protection relay,
128 kbit 13
Electrical interface to pilot wires 5 kV-isolated
14
1) For flush-mounting housing. 4) Conversion with external OLM
For fiber-optic interface please complete order number at 11th positi-
2) For surface-mounting housing. on with 4 (FMS RS485) or 9 and Order Code L0A (DP RS485) or 9 and
3) For surface-mounting housing the internal fiber-optic module (OMA1)
will be delivered together with an external repeater.
Order Code L0G (DNP 3.0) and additionally a suitable external
repeater.
15
Siemens SIP · Edition No. 7 6/21
Distance Protection 7SA6
Technical data
IEC 61000-3-2
Impulse voltage test (type test) 5 kV (peak); 1.2/50 µs; 0.5 Ws,
All circuits except for communi- 3 positive and 3 negative impulses in Voltage fluctuations and flicker Limits are observed
cation interfaces and time intervals of 5 s on the network incoming feeder
6 synchronization interface,
class III
at AC 230 V, IEC 61000-3-3
EMC tests for noise immunity; type tests Mechanical stress test
Standards IEC 60255-6/-22 (product standard) Vibration, shock stress and seismic vibration
7 EN 61000-6-2 (generic standard),
VDE 0435 part 301 During operation
DIN VDE 0435-110 Standards IEC 60255-21 and IEC 60068-2
High-frequency test 2.5 kV (peak); 1 MHz; τ = 15 ms; Vibration Sinusoidal
IEC 60255-22-1 class III and 400 surges per s; test duration 2 s, IEC 60255-21-1, class 2 10 to 60 Hz: ± 0.075 mm amplitude;
8 VDE 0435 Section 303, class III
Electrostatic discharge
Ri = 200 Ω
8 kV contact discharge; 15 kV air
IEC 60068-2-6 60 to 150 Hz: 1 g acceleration
frequency sweep 1 octave/min
IEC 60255-22-2 class IV discharge; both polarities; 150 pF; 20 cycles in 3 orthogonal axes
and IEC 61000-4-2, class IV Ri = 330 Ω Shock Semi-sinusoidal
IEC 60255-21-2, class 1 Acceleration 5 g, duration 11 ms,
9 Irradiation with HF field, frequency 10 V/m; 80 to 1000 MHz: 80 % AM;
sweep 1 kHz IEC 60068-2-27 3 shocks on each of the 3 axes in
both directions
IEC 60255-22-3 (report) class III 10 V/m; 800 to 960 MHz: 80 % AM;
1 kHz Seismic vibration Sinusoidal
IEC 61000-4-3, class III 10 V/m; 1.4 to 2 GHz: 80 % AM; 1 kHz IEC 60255-21-2, class 1 1 to 8 Hz: ± 3.5 mm amplitude
Climatic stress tests Inclination angle for 30° to 90° (step 1°)
quadrilateral characteristic
Standard
Temperatures
IEC 60255-6
Zone setting Zr
(for circle characteristic)
0.050 to 600 Ω(1 A)/0.010 to 120 Ω(5A)
(step 0.001 Ω)
1
Type-tested acc. to IEC 60068-2-1 -25 °C to +85 °C / -13 °F to +185 °F Threshold angle α for increased 10 to 90 ° (step 1°)
and -2, test Bd resistance tolerance (circle
Temporarily permissible operating -20 °C to +70 °C / -4 °F to +158 °F
temperature, tested for 96 h
(Legibility of display may be
charac.)
Overcurrent pickup I>> 0.25 to 10 A (1A) / 1.25 to 50 A (5A)
2
(for I>>, V</I>, V</I>/φ>) (step 0.01 A)
impaired above +55 °C / +131 °F)
Minimum current pickup I> 0.05 to 4 A (1A) / 0.25 to 20 A (5A)
Recommended permanent -5 °C to +55 °C / +23 °F to +131 °F (for V</I>, V</I>/φ> and Z<) (step 0.01 A)
operating temperature acc. to
IEC 60255-6 Minimum current pickup Iφ>
(for V</I>/φ>)
0.1 to 8 A (1A) / 0.5 to 40 A (5A)
(step 0.01 A)
3
– Limiting temperature during -25 °C to +55 °C / -13 °F to 131 °F
permanent storage Undervoltage pickup (for V</I>
and V</I>/φ>)
– Limiting temperature during -25 °C to +70 °C / -13 °F to +158 °F
transport
VPH-e<
VPH-PH<
20 to 70 V (step 1 V)
40 to 130 V (step 1 V) 4
Humidity Load angle pickup (for V</I>/φ>)
Permissible humidity stress: Annual average on ≤ 75 % relative Load angle φ 30 ° to 80 °
It is recommended to arrange the humidity; on 56 days per year up to Load angle φ 90 ° to 120 °
units in such a way that they are
not exposed to direct sunlight or
93 % relative humidity; condensation
is not permitted.
Load zone (for Z<) Impedances within the load zone do
not cause pickup in pickup mode Z<;
5
pronounced temperature changes Load zones for phase-to-phase and
that could cause condensation. phase-to-ground faults can be set
separately
Functions
Load angle
Resistance
20 ° to 60 °
0.1 to 600 Ω (1A) / 0.02 to 120 Ω(5A)
6
Distance protection (ANSI 21, 21N) Ground-fault detection
Types of pickup Overcurrent pickup (I>); Ground current 3I0> 0.05 to 4 A (1A) / 0.25 A to 20 A (5A)
Voltage-dependent overcurrent
pickup (V< / I>); Zero-sequence voltage 3V0>
(step 0.01 A)
7
Voltage-dependent and phase angle- for grounded networks 1 to 100 V (step 1 V) or deactivated
dependent overcurrent pickup for resonant-grounded networks 10 to 200 V (step 1 V) or deactivated
(V< / I> / φ>);
Ground impedance matching
Types of tripping
Impedance pickup (Z<)
Three-pole for all types of faults;
Parameter formats
Separately settable for
RE/RL and XE/XL or k0 and φ (k0)
Distance protection zone Z1 and
8
Single-pole for single-phase faults/ higher distance zones (Z1B, Z2 to Z6)
otherwise three-pole; RE/RL and XE/XL -0.33 to +7.00 (step 0.01)
Single-pole for single-phase faults k0 and φ (k0) 0 to 4 (step 0.01) and - 135 ° to 135 °
and two-pole phase-to-phase faults /
otherwise three-pole Parallel line matching
(step 0.01 °)
For parallel compensation
9
Characteristic Quadrilateral or circle RM/RL and XM/XL 0 to 8 (step 0.01)
Distance protection zones 7, 1 of which as controlled zone Phase preference on double Phase preference or no preference
All zones can be set to forward,
reverse, non-directional or inactive
ground-faults in resonant-grounded / (selectable)
non-grounded networks 10
Timer stages for tripping delay 7 for multi-phase faults Direction decision for all types With fault-free voltages and/or
3 for single-phase faults of faults voltage memory
Setting range 0 to 30 s or deactivated (steps 0.01 s) Direction sensitivity Dynamically unlimited
Zone setting X 0.050 to 600 Ω (1A) / 0.01 to 120 Ω(5A)
(for distance zones and Z< starting) (step 0.001 Ω)
11
Resistance setting
(for quadrilateral distance zones
and Z< starting)
Phase-to-phase faults and 0.05 to 600 Ω (1A) / 0.01 to 120 Ω(5A) 12
phase-to-ground faults (step 0.001 Ω)
Line angle 10 ° to 89 °
13
14
15
Siemens SIP · Edition No. 7 6/23
Distance Protection 7SA6
Technical data
3 V and I
Angle (φ)
≤ 5 % of setting value
≤3°
Direct transfer trip (DTT)
Direct phase-selective tripping via Alternatively with or without auto-
ΔX binary input reclosure
Impedances ≤ 5 % for 30 ° ≤ φSC ≤ 90 °
X Trip time delay 0 to 30 s (step 0.01 s)
(in conformity with DIN 57435,
4 Part 303) ΔR
R
≤ 5 % for 0 ° ≤ φSC ≤ 60 °
Timer tolerance
Power swing detection (ANSI 68, 68T)
1 % of setting value or 10 ms
13
14
15
6/24 Siemens SIP · Edition No. 7
Distance Protection 7SA6
Technical data
Normal inverse; very inverse; Command / pickup times 3I0> and Approx. 40 ms
Tripping time characteristics acc.
to IEC 60255-3
Tripping time characteristics acc.
extremely inverse; long time inverse
Inverse; short inverse; long inverse;
3I0, 4th stage
Inverse-time stage (ANSI 51N)
2
to ANSI/IEEE moderately inverse; very inverse; Ground-current pickup 3I0P 0.05 to 4 A (1A) / 0.25 to 20 A (5A)
(not for DE region, see selection extremely inverse; definite inverse (step 0.01 A)
and ordering data 10th position) Neutral (residual) current transfor-
Time multiplier for IEC charac. T Tp = 0.05 to 3 s (step 0.01 s) mer with normal sensitivity
(refer to ordering data, position 7)
3
Time multiplier for ANSI charac. D DIP = 0.5 to 15 s (step 0.01 s)
0.003 to 4 A (1A) / 0.015 to 20 A (5A)
Pickup threshold Approx. 1.1 II/Ip (ANSI: I/Ip = M ) (step 0.001 A)
Neutral (residual) current transfor-
Reset threshold
Tolerances
Approx. 1.05 x I/Ip (ANSI: I/Ip = M )
mer with high sensitivity (refer to
ordering data, position 7)
4
Operating time for 2 ≤ I/Ip ≤ 20 ≤ 5 % of setpoint ± 15 ms
Tripping characteristics acc. to Normal inverse; very inverse;
Directional ground-fault overcurrent protection IEC 60255-3 extremely inverse; long time
for high-resistance faults in systems with grounded star point
(ANSI 50N, 51N, 67N) ANSI/IEEE tripping characteristic
(not for region DE, see selection
Inverse; short inverse; long inverse;
moderately inverse; very inverse;
5
Characteristic 3 definite-time stages /1 inverse-time and ordering data, position 10) extremely inverse; definite inverse
stage or 4 definite-time stages or
3 definite-time stages /1 V0invers. stage Inverse logarithmic tripping
characteristics (not for regions 3I0
t = T3I 0Pmax − T3I 0P ln
Phase selector Permits 1-pole tripping for single-
phase faults or 3-pole tripping for
DE and US, see selection and
ordering data, position 10)
3I0P
6
multi-phase faults selectable for
every stage Pickup threshold 1.1 to 4.0 x I/Ip (step 0.1 s)
Inrush restraint Selectable for every stage Time multiplier for IEC charac. T Tp = 0.05 to 3 s (step 0.01 s)
Stages 3 and 4
tely suppressed by digital filtering
2nd and higher harmonics are com-
Reset threshold
Tolerance
Approx. 1.05 I/I0P (ANSI: I/Ip = M)
8
(I> and inverse 4th stage) pletely suppressed by digital filtering
Operating time for 2 ≤ I/Ip ≤ 20 ≤ 5 % of setpoint ± 15 ms
Definite-time stage (ANSI 50N)
Zero-sequence voltage protection V
Pickup value 3I0>>> 0.5 to 25 A (1A) / 2.5 to 125 A (5A)
(step 0.01 A) Tripping characteristic
t=
V0
2s 9
Pickup value 3I0>> 0.2 to 25 A (1A) / 1 to 125 A (5A) − V0inv min
4
(step 0.01 A)
Pickup value 3I0> 0.05 to 25 A (1A) / 0.25 to 125 A (5A) Zero-sequence power-dependent stage
(step 0.01 A)
Neutral (residual) current transfor-
Compensated zero-sequence
power
Sr = 3I0 × 3V0 × cos (φ - φcomp.) 10
mer with normal sensitivity
(refer to ordering data, position 7); Direction decision (ANSI 67N)
0.003 to 25 A (1A) / 0.015 to 125 A (5A) Measured signals for direction 3I0 and 3V0 or
(step 0.001 A)
Neutral (residual) current transfor-
decision 3I0 and 3V0 and IY (star point current
of an grounded power transformer)
11
mer with high sensitivity (refer to or 3I2 and 3V2 (negative-sequence
ordering data, position 7) system) or zero-sequence power Sr or
Pickup value 3I0, 4th stage 0.05 to 25 A (1A) / 0.25 to 125 A (5A) automatic selection of zero-sequence
(step 0.01 A)
Neutral (residual) current transfor-
or negative-sequence quantities
dependent on the magnitude of the
12
mer with normal sensitivity component voltages
(refer to ordering data, position 7); Min. zero-sequence voltage 3V0 0.5 to 10 V (step 0.1 V)
0.003 to 25 A (1A) / 0.015 to 125 A (5A)
(step 0.001 A)
Neutral (residual) current transfor-
Min. current IY
(of grounded transformers)
0.05 to 1 A (1A) / 0.25 to 5 A (5A)
(step 0.01 A) 13
mer with high sensitivity Min. negative-sequence voltage 3V2 0.5 to 10 V (step 0.1 V)
(refer to ordering data, position 7) Min. negative-sequence current 3I2 0.05 to 1 A (1A) / 0.25 to 5 A (5A)
Time delay for definite-time
stages
0 to 30 s (step 0.01 s) or deactivated (step 0.01 A)
14
15
Siemens SIP · Edition No. 7 6/25
Distance Protection 7SA6
Technical data
Inrush current blocking, capable of being activated for each stage Time delays
Component of the 2nd harmonic
1 10 to 45 % of the fundamental
(step 1 %)
Time delay for all stages
Command / pickup time
0 to 100 s (step 0.01 s) or deactivated
Approx. 30 ms
Max. current, which cancels 0.5 to 25 A (1A) / 2.5 to 125 A (5A) Command/pickup time for 3V0 Approx. 30 ms or 65 ms (settable)
inrush current blocking (step 0.01 A) stages
Tele (pilot) protection Tolerances
2 For directional ground-fault protection (ANSI 85-67N) Voltage limit values
Time stages
≤ 3 % of setting value or 1 V
1 % of setting value or 10 ms
Operating modes Directional comparison, blocking,
unblocking Frequency protection (ANSI 81)
Additional functions Echo (see function “weak infeed”); Number of frequency elements 4
3 transient blocking for schemes with
parallel lines
Setting range 45.5 to 54.5 Hz
(in steps of 0.01) at fnom = 50 Hz
Send and receive signals Suitable for 2 and 3 end-lines 55.5 to 64.5 Hz
(in steps of 0.01) at fnom = 60 Hz
Instantaneous high-speed switch-onto-fault overcurrent protection
4 (ANSI 50HS)
Operating mode Active only after CB closing;
Delay times
Operating voltage range
0 to 600 s or ∞ (in steps of 0.01 s)
6 to 230 V (phase-to-ground)
instantaneous trip after pickup Pickup times Approx. 80 ms
Pickup current I>>> 1 to 25 A (1A) / 5 to 125 A (5A) Dropout times Approx. 80 ms
5 Reset ratio
(step 0.01 A)
Approx. 0.90
Hysteresis
Dropout condition
Approx. 20 mHz
Voltage = 0 V and current = 0 A
Tolerances Tolerances
Current starting ≤ 3 % of setting value or 1 % IN Frequency 15 mHz for VPH-PH: 50 to 230 V
Delay times 1 % of the setting value or 10 ms
6 Shortest tripping time
With reference to fast relays Approx. 12 ms
With high-speed trip to outputs Approx. 8 ms
Thermal overload protection (ANSI 49)
Factor k acc. to IEC 60255-8 0.1 to 4 (steps 0.01)
Voltage protection (ANSI 59, 27) Time constant τ 1 to 999.9 min (steps 0.1 min)
Operating modes Local tripping and/or carrier trip for Thermal alarm stage ΘAlarm/ΘTrip 50 to 100 % referred to tripping
7 remote end temperature (steps 1 %)
Overvoltage protection Current-based alarm stage IAlarm 0.1 to 4 A (1A) / 0.5 to 20 A (5A)
(steps 0.01 A)
Pickup values VPH-E>>, VPH-E> 1 to 170 V (step 0.1 V)
(phase-ground overvoltage) Calculating mode for overtem- Θmax, Θmean, Θ with Imax
8 Pickup values VPH-PH>>, VPH-PH>
(phase-phase overvoltage)
2 to 220 V (step 0.1 V)
perature
I 2 − I 2pre
Pickup values 3V0>>, 3V0> 1 to 220 V (step 0.1 V) Pickup time characteristic t = t ln
I − (kInom )2
2
(3V0 can be measured via
9 V4 transformers or calculated by
the relay)
Reset ratio
Θ/ΘAlarm Approx. 0.99
(zero-sequence overvoltage)
Θ/ΘTrip Approx. 0.99
Pickup values V1>>, V1> 2 to 220 V (step 0.1 V) I/IAlarm Approx. 0.97
(positive-sequence overvoltage)
Overload measured values Θ/ΘTrip L1; Θ/ΘTrip L2; Θ/ΘTrip L3;
10 Measured voltage Local positive-sequence voltage or
calculated remote positive-
Θ/ΘTrip
sequence voltage (compounding) Tolerances Class 10 % acc. to IEC 60255-8
Pickup values V2>>, V2> 2 to 220 V (step 0.1 V) Breaker failure protection (ANSI 50BF)
(negative-sequence overvoltage)
11 Reset ratio (settable) 0.5 to 0.98 (step 0.01)
Number of stages
Pickup of current element
2
0.05 to 20 A (1A) / 0.25 to 100 A (5A)
Undervoltage protection (step 0.01 A)
Pickup values VPH-E<<, VPH-E< 1 to 100 V (step 0.1 V) Time delays T11phase, T13phase, T2 0 to 30 s (steps 0.01 s) or deactivated
(phase-ground undervoltage) Additional functions End-fault protection
12 Pickup values VPH-PH<<, VPH-PH<
(phase-phase undervoltage)
1 to 170 V (step 0.1 V) CB pole discrepancy monitoring
Drop-off (overshoot) time, ≤ 15 ms, typical; 25 ms, max.
Pickup values V1<<, V1< 1 to 100 V (step 0.1 V) internal
(positive-sequence undervoltage) Tolerances
13 Blocking of undervoltage prot.
stages
Minimum current; binary input Current limit value
Time stages
≤ 5 % of setting value or 1 % Inom
1 % of setting value or 10 ms
Reset ratio (settable) 1.01 to 1.20 (step 0.01)
14
15
6/26 Siemens SIP · Edition No. 7
Distance Protection 7SA6
Technical data
Operating modes
Control commands
Power with direction indication P, Q, S 7
Tolerances
With auto-reclosure Synchro-check
P: for |cos φ| = 0.7 to 1 and Typical ≤ 1%
Line dead/busbar live
V/Vnom, I/Inom = 50 to 120 %
Line live/busbar dead
Line and busbar dead
Bypassing
Q: for |sin φ| = 0.7 to 1 and
V/Vnom, I/Inom = 50 to 120 %
Typical ≤ 1%
8
S: for V/Vnom, I/Inom = 50 to Typical ≤ 1%
For manual closure 120 %
and control commands As for auto-reclosure
Frequency f
Permissible voltage difference
Permissible frequency difference
1 to 60 V (step 0.1 V)
0.03 to 2 Hz (step 0.01 Hz)
Tolerance
Power factor
≤ 10 mHz
p.f. (cos φ)
9
Permissible angle difference 2 to 80 ° (step 1°) Tolerance for |cos φ| = 0.7 to 1 Typical ≤ 0.02
Max. duration of synchronization 0.01 to 600 s (step 0.01 s) or Load impedances with directional 3 x RPhase-Ground, XPhase-Ground
15
Siemens SIP · Edition No. 7 6/27
Distance Protection 7SA6
Technical data
1 Indication
Resetting
Measured values with date and time
Cyclically
Measured value supervision Current sum
Current symmetry
Voltage sum
Via binary input
Via the keyboard Voltage symmetry
Via serial interface Phase sequence
Fuse failure monitor
2 Values
Min./max. of measured values 3 x IPhase; I1; 3 x VPhase-Ground;
Power direction
3 x VPhase-to-phase; 3V0; V1; Indications
P+; P-; Q+; Q-; S; f; power factor (+); Operational indications Buffer size 200
power factor (–) System disturbance indication Storage of indications of the last
3 Min./max. of mean values
Energy meters
3 x IPhase; I1; P; Q; S
Ground-fault indication
8 faults, buffer size 600
Storage of indications of the last
8 faults, buffer size 200
Four-quadrant meters WP+; WP-; WQ+; WQ-
Switching statistics Number of breaking operations per
Tolerance
4 for |cos φ| > 0.7 and V > 50 %
Vnom and I > 50 % Inom
5%
CB pole
Sum of breaking current per phase
Breaking current of last trip operation
Analog measured value output 0 to 20 mA Max. breaking current per phase
Number of analog channels 2 per plug-in module Circuit-breaker test TRIP/CLOSE cycle, 3 phases
5 Alternatively 1 or 2 or no plug-in
module (Refer to ordering data, Dead time for CB TRIP / CLOSE
TRIP/CLOSE per phase
0 to 30 s (steps 0.01 s)
position 11 and Order code for cycle
position 12)
Commissioning support Operational measured values, c.-b.
Indication range 0 to 22 mA
6 Selectable measured values Fault location [%];
fault location [km]; VL23 [%]; IL2 [%];
test, status display of binary inputs,
setting of output relays, generation
of indications for testing serial
|P| [%]; |Q| [%]; interfaces
breaking current Imax-primary Phase rotation adjustment Clockwise or anti-clockwise
7 Max. burden
Oscillographic fault recording
350 Ω
CE conformity
Analog channels 3 x IPhase, 3I0, 3I0 PAR
This product complies with the directive of the Council of the European
3 x VPhase, 3±0, VSYNC, Ven
Communities on the approximation of the laws of the Member States
8 Max. number of available
recordings
8, backed-up by battery if auxiliary
voltage supply fails
relating to electromagnetic compatibility (EMC Council Directive
89/336/EEC) and concerning electrical equipment for use within
Sampling intervals 20 samplings per cycle specified voltage limits (Low-voltage directive 73/23/EEC).
Total storage time > 15 s This conformity is proved by tests conducted by Siemens AG in
accordance with Article 10 of the Council Directive in agreement
9 Binary channels Pickup and trip information; number
and contents can be freely configu-
with the generic standards EN 61000-6-2 and EN 61000-6-4 for the
EMC directive and with the standard EN 60255-6 for the low-voltage
red by the user
directive.
Max. number of displayed binary 100
This device is designed and produced for industrial use.
channels
10 Control
The product conforms with the international standard of the series
IEC 60255 and the German standard VDE 0435.
Number of switching units Depends on the number of binary/
indication inputs and indication/
command outputs
13
14
15
6/28 Siemens SIP · Edition No. 7
Distance Protection 7SA6
Selection and ordering data
For 7SA611
K
8
13 5 12 A
13 5 12 E
13
13
13
5
4
4
12
8
8
5
5
J
M 9
N
13 4 8 5 P
20 9 4 B
20
20
9
9
4
4
F
K 10
1) Rated current can be
selected by means of For 7SA612
jumpers. 21 13 12 A
2) Transition between the
two auxiliary voltage
21
21
13
13
12
12
E
J 11
ranges can be selected by 21 12 8 5 M
means of jumpers. 21 12 8 5 P
21 12 8 5 R
3) The binary input
thresholds are selectable
in three stages by means
29
29
21
21
12
12
B
F 12
29 21 12 K
of jumpers, exception:
29 20 8 5 N
versions with power
29 20 8 5 Q
relays have some binary
inputs with only two
binary input thresholds.
29
33
33
20
12
12
8 5
8
8
S
C 13
G
4) Fast relays are identified 33 12 8 L
in the terminal connec-
tion diagram.
5) Power relay for direct
For 7SA613
21 13 12 A 14
control of disconnector 21 12 8 5 M
actuator motors. Each
pair of contacts is
mechanically interlocked
to prevent simultaneous
closure.
15
Siemens SIP · Edition No. 7 6/29
Distance Protection 7SA6
Selection and ordering data
6 For 7SA632
13 5 12 A
13 5 12 E
13 5 12 J
7 13
13
4
4
8
8
5
5
M
N
13 4 8 5 P
20 9 4 B
20 9 4 F
8 20 9 4 K
For 7SA632
21 13 12 A
21 13 12 E
9 21
21
13
12
12
8 5
J
M
21 12 8 5 P
21 12 8 5 R
29 21 12 B
10 29
29
21
21
12
12
F
K
29 20 8 5 N
29 20 8 5 Q
29 20 8 5 S
11 33
33
12
12
8
8
C
G
33 12 8 L
12
13
1) Rated current can be selected by means of jumpers. 4) Fast relays are identified in the terminal connection
14 2) Transition between the two auxiliary voltage ranges diagram.
can be selected by means of jumpers. 5) Power relay for direct control of disconnector actu-
3) The binary input thresholds are selectable in three ator motors. Each pair of contacts is mechanically
stages by means of jumpers, exception: versions interlocked to prevent simultaneous closure.
LSA2540-agpen.eps
Description Order No.
7SA64 distance protection relay for all voltage levels
For 7SA641 6
13 5 12 A
13 5 12 J
13 4 8 5 M
13
20
4
9
8 5
4
P
B 7
20 9 4 K
For 7SA642
21
21
13
13
12
12
A
J
8
21 12 8 5 M
21 12 8 5 R
29 21 12 B
29
29
21
20
12
8 5
K
N
9
29 20 8 5 S
29 12 8 C
33 12 8 L
10
11
12
13
1) Rated current can be selected by means of jumpers.
2) Transition between the two auxiliary voltage ranges
4) Fast relays are identified in the terminal connection
diagram. 14
can be selected by means of jumpers. 5) Power relay for direct control of disconnector actu-
3) The binary input thresholds are selectable in three ator motors. Each pair of contacts is mechanically
stages by means of jumpers, exception: versions interlocked to prevent simultaneous closure.
with power relays have some binary inputs with only
two binary input thresholds.
15
Siemens SIP · Edition No. 7 6/31
Distance Protection 7SA6
Selection and ordering data
see pages
Region DE, language: German A
6/33 to 6/35
Region World, language: English (GB) B
2 Region US, language: English (US)
Region FR, French
C
D
Region World, Spanish E
Region World, Italian F
3 Region World, language: Russian G
Region World, language: Polish H
Port B
4 Empty
System interface, IEC 60870-5-103 protocol, electrical RS232
0
1
System interface, IEC 60870-5-103 protocol, electrical RS485 2
System interface, IEC 60870-5-103 protocol, optical 820 nm, ST connector 3
10
1) Definitions for region-specific default settings and functions:
Region DE: preset to f = 50 Hz and line length in km, only IEC
Port C
DIGSI/modem, electrical RS232 1
3
DIGSI/modem, electrical RS485 2
Port D
Protection data interface: optical 820 nm, two ST connectors, FO cable length up to 1.5 km
For direct connection via multi-mode FO cable or communication networks 1)
4
A
Protection data interface: optical 820 nm, two ST connectors, FO cable length up to 3.5 km
For direct connection via multi-mode FO cable B
Two analog outputs, each 0...20 mA
Protection data interface: optical 1300 nm, LC-Duplex connector
K 5
FO cable length up to 24 km for direct connection via mono-mode FO cable2) G
Protection data interface: optical 1300 nm, LC-Duplex connector
FO cable length up to 60 km for direct connection via mono-mode FO cable2)3)
Protection data interface: optical 1550 nm, LC-Duplex connector
H
6
FO cable length up to 100 km for direct connection via mono-mode FO cable2)4) J
FO30 optical 820 nm, 2-ST-connector, length of optical fibre up to 1.5 km
for multimode fibre, for communication networks with IEEEC37.94 interface
or direct optical fibre connection (not available for surface-mounted housing) S 7
10
11
12
Functions 1
Trip mode Thermal overload BCD-coded output for
protection (ANSI 49) fault location
2 3-pole
3-pole
0
1
3-pole 2
3-pole 3
3 1/3-pole
1/3-pole
1/3-pole
4
5
6
1/3-pole 7
Functions 2
4 Distance protection pickup
(ANSI 21, 21N)
Power swing detection
(ANSI 68, 68T)
Parallel line compensation
I> A
V< / I> B
5 Quadrilateral (Z<)
Quadrilateral (Z<), V< / I> / φ
C
D
Quadrilateral (Z<) F
Quadrilateral (Z<), V< / I> / φ G
V< / I> 1) J
6 Quadrilateral (Z<)
Quadrilateral (Z<), V< / I> / φ
1)
1)
K
L
Quadrilateral (Z<) 1) N
Quadrilateral (Z<), V< / I> / φ 1) P
7 Functions 3
Auto-reclosure (ANSI Synchro-check Breaker failure protection Over/undervoltage protection
79) (ANSI 25) (ANSI 50BF) V>, V< (ANSI 27, 59)
Over/underfrequency protection
(ANSI 81)
8
A
B
C
D
E
9
F
G
H
J
K
10
L
M
N
P
Q
11 R
Functions 4
Directional ground-fault Ground-fault detection Measured values
protection, grounded compensated/ isolated extended Min, max, mean
12 networks (ANSI 50N, networks
51N, 67N)
0
1
2)
13
2)
2
3
4
5
2) 6
2)
14 7
Preferential types
7SA6 - -
1
Functions 1
2
Parallel line compensation
Z< (quadrilateral) V</I>/φ
Ground-fault directional
Ground-fault protection
Power swing detection
Trip mode 1 or 3-pole
Frequency protection
Overload protection
Voltage protection
isolated networks
Trip mode, 3-pole
Measured values,
for compensated
Synchro-check
3
Pickup V</I>
extended,
networks
Pickup I>
Basic version 4
1 AB 0
1) 1 B D7 6
Medium voltage, overhead lines
1) 3 BM6
1) 3 BM7
7
High voltage, cables
3 GH4
8
3 GH5
2) 7 P R 4 9
2) 7 P R 5
10
11
12
13
14
1) Only with position 7 of Order No. = 2 or 6.
2) Only with position 7 of Order No. = 1 or 5.
15
Siemens SIP · Edition No. 7 6/35
Distance Protection 7SA6
Selection and ordering data
1 DIGSI 4
Software for configuration and operation of Siemens protection
units running under MS Windows 2000 / XP Professional Edition
Basis
Complete version:
DIGSI 4 Basis and additionally SIGRA (fault record analysis),
CFC Editor (logic editor), Display Editor (editor for control
4 displays),
DIGSI 4 Remote (remote operation)
+ IEC 61850 system configurator 7XS5403-0AA00
11
12
13
14
15
6/36 Siemens SIP · Edition No. 7
Distance Protection 7SA6
Selection and ordering data
LSP2091-afp.eps
LSP2092-afp.eps
LSA2532-agpen.eps
7
Fig. 6/39 Connection diagram
10
11
12
13
15
6/38 Siemens SIP · Edition No. 7
Distance Protection 7SA6
Connection diagram
LSA2532-agpen.eps
7
Note: For serial interfaces see Fig. 6/40.
10
11
12
13
14
15
Siemens SIP · Edition No. 7 6/39
Distance Protection 7SA6
Connection diagram
1 SA2545-agpen.eps
10
11
12
1) Starting from unit version .../EE.
13 2) High-speed trip outputs in versions 7SA6*1*-*M, 7SA*1*-*N, 7SA*1*-*P.
Time advantage of high-speed relays over fast relays: approx. 5 ms
3) Time advantage with fast relay approx. 3 ms.
4) Version with 3-pole tripping.
14 5) Version with 1/3-pole tripping.
Note: For serial interfaces see Fig. 6/40.
SA2545-agpen.eps 1
10
11
12
13
1) Version with 3-pole tripping.
2) Each pair of contacts is mechanically interlocked to prevent simultaneous closure.
3) Version with 1/3-pole tripping. 14
Note: For serial interfaces see Fig. 6/40.
2 SA2546-agpen.eps
10
11
12
13
1) 7SA613 is only available in a 2/3 x 19" flush-mounting housing. 5) Version with 3-pole tripping.
SA2546-agpen.eps
2
10
11
1) Starting from unit version
.../EE.
2) High-speed trip outputs
in versions 7SA6*2*-*N,
12
7SA6*2*-*Q, 7SA6*2*-*S.
3) Time advantage with fast
relay approx. 3 ms.
4) Version with 3-pole 13
tripping.
5) Version with 1/3-pole
tripping.
Time advantage of high-
speed relays over fast 14
relays: approx. 5 ms.
Note: For serial interfaces
see Fig. 6/40.
15
Fig. 6/45 Connection diagram
2 SA2546-agpen.eps
10
11
12
1) Version with 3-pole
13 tripping.
2) Each pair of contacts is
mechanically interlocked
to prevent simultaneous
14 closure.
3) Version with 1/3-pole
tripping.
Note: For serial interfaces see
Fig. 6/40.
15
Fig. 6/46 Connection diagram