Reay 615 - 615
Reay 615 - 615
Reay 615 - 615
Trademarks
ABB and Relion are registered trademarks of the ABB Group. All other brand or
product names mentioned in this document may be trademarks or registered
trademarks of their respective holders.
Warranty
Please inquire about the terms of warranty from your nearest ABB representative.
ABB
Nanjing SAC Power Grid Automation Co., Ltd.
No. 11 Phoenix Road, Jiangning Development Zone
211100 Nanjing
China
Telephone: +86 25 51183000
Facsimile: +86 25 51183883
Customer hotline: 4008876268
http://www.abb.com/substationautomation
Disclaimer
The data, examples and diagrams in this manual are included solely for the concept
or product description and are not to be deemed as a statement of guaranteed
properties. All persons responsible for applying the equipment addressed in this
manual must satisfy themselves that each intended application is suitable and
acceptable, including that any applicable safety or other operational requirements
are complied with. In particular, any risks in applications where a system failure and/
or product failure would create a risk for harm to property or persons (including but
not limited to personal injuries or death) shall be the sole responsibility of the
person or entity applying the equipment, and those so responsible are hereby
requested to ensure that all measures are taken to exclude or mitigate such risks.
This product has been designed to be connected and communicate data and
information via a network interface which should be connected to a secure
network. It is the sole responsibility of the person or entity responsible for network
administration to ensure a secure connection to the network and to take the
necessary measures (such as, but not limited to, installation of firewalls, application
of authentication measures, encryption of data, installation of anti virus programs,
etc.) to protect the product and the network, its system and interface included,
against any kind of security breaches, unauthorized access, interference, intrusion,
leakage and/or theft of data or information. ABB is not liable for any such damages
and/or losses.
This document has been carefully checked by ABB but deviations cannot be
completely ruled out. In case any errors are detected, the reader is kindly requested
to notify the manufacturer. Other than under explicit contractual commitments, in
no event shall ABB be responsible or liable for any loss or damage resulting from
the use of this manual or the application of the equipment.
Conformity
This product complies with the directive of the Council of the European
Communities on the approximation of the laws of the Member States relating to
electromagnetic compatibility (EMC Directive 2004/108/EC) and concerning
electrical equipment for use within specified voltage limits (Low-voltage directive
2006/95/EC). This conformity is the result of tests conducted by ABB in
accordance with the product standards EN 50263 and EN 60255-26 for the EMC
directive, and with the product standards EN 60255-1 and EN 60255-27 for the low
voltage directive. The product is designed in accordance with the international
standards of the IEC 60255 series.
Table of contents
Table of contents
Section 1 Introduction.......................................................................5
This manual........................................................................................5
Intended audience..............................................................................5
Product documentation.......................................................................6
Product documentation set............................................................6
Document revision history.............................................................6
Related documentation..................................................................7
Symbols and conventions...................................................................7
Symbols.........................................................................................7
Document conventions..................................................................8
Functions, codes and symbols......................................................8
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Table of contents
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Table of contents
Applications...............................................................................187
Functions...................................................................................188
Default I/O connections........................................................189
Default disturbance recorder settings...................................191
Functional diagrams..................................................................191
Functional diagrams for protection.......................................192
Functional diagrams for disturbance recorder and
supervision...........................................................................199
Functional diagrams for control and interlocking..................201
Section 6 Glossary.......................................................................215
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Introduction
Section 1 Introduction
This manual addresses the protection and control engineer responsible for
planning, pre-engineering and engineering.
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Introduction
Maintenance
Engineering
Planning &
Installation
Operation
Quick start guide purchase
Quick installation guide
Brochure
Product guide
Operation manual
Installation manual
Connection diagram
Engineering manual
Technical manual
Application manual c
Communication protocol manual c
IEC 61850 Engineering guide
Point list manual
GUID-12DC16B2-2DC1-48DF-8734-0C8B7116124C V1 EN
Figure 1: The intended use of documents during the product life cycle
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1.4.1 Symbols
The tip icon indicates advice on, for example, how to design your
project or how to use a certain function.
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Introduction
• Abbreviations and acronyms in this manual are spelled out in the glossary. The
glossary also contains definitions of important terms.
• Push-button navigation in the LHMI menu structure is presented by using the
push-button icons.
To navigate between the options, use and .
• HMI menu paths are presented in bold.
Select Main menu/Settings.
• LHMI messages are shown in Courier font.
To save the changes in non-volatile memory, select Yes and press .
• Parameter names are shown in italics.
The function can be enabled and disabled with the Operation setting.
• Parameter values are indicated with quotation marks.
The corresponding parameter values are "On" and "Off".
• IED input/output messages and monitored data names are shown in Courier font.
When the function starts, the START output is set to TRUE.
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Control
Circuit-breaker control CBXCBR1 I <-> O CB I <-> O CB
Table continues on next page
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2.1 Overview
Re-engineered from the ground up, the 615 series has been designed to unleash the
full potential of the IEC 61850 standard for communication and interoperability
between substation automation devices. Once the standard configuration IED has
been given the application-specific settings, it can directly be put into service.
The 615 series IEDs support a range of communication protocols including IEC
61850 with GOOSE messaging, IEC 60870-5-103 and Modbus®.
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The IED consists of two main parts: plug-in unit and case. The content depends on
the ordered functionality.
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Rated values of the current and voltage inputs are basic setting parameters of the
IED. The binary input thresholds are selectable within the range 18…176 V DC by
adjusting the binary input setting parameters.
The connection diagrams of different hardware modules are presented in this manual.
See the installation manual for more information about the case and
the plug-in unit.
- 8 (14)1) 10 (13)1)
B 7 -
6/22) 8 10
- 8 (14)1) 10 (13)1)
C 7 -
6/22) 8 10
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E 7 5 - 12 10
F 7 5 - 12 10
G 7 5 - 12 10
H 7 5 - 12 10
- 8 (14)1) 10 (13)1)
J 7 -
6/22) 8 10
K 7 5 - 12 10
The LHMI is used for setting, monitoring and controlling the IED. The LHMI
comprises the display, buttons, LED indicators and communication port.
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REF615
Overcurrent
Dir. earth-fault
Voltage protection
Phase unbalance
Thermal overload
Breaker failure
Disturb. rec. Triggered
CB condition monitoring
Supervision
Arc detected
Autoreclose shot in progr.
A070704 V3 EN
2.4.1 Display
The LHMI includes a graphical display that supports two character sizes. The
character size depends on the selected language. The amount of characters and
rows fitting the view depends on the character size.
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3 4
A070705 V3 EN
1 Header
2 Icon
3 Content
4 Scroll bar (displayed when needed)
2.4.2 LEDs
The LHMI includes three protection indicators above the display: Ready, Start and
Trip.
There are also 11 matrix programmable LEDs on front of the LHMI. The LEDs
can be configured with PCM600 and the operation mode can be selected with the
LHMI, WHMI or PCM600.
2.4.3 Keypad
The LHMI keypad contains push-buttons which are used to navigate in different
views or menus. With the push-buttons you can give open or close commands to
objects in the primary circuit, for example, a circuit breaker, a contactor or a
disconnector. The push-buttons are also used to acknowledge alarms, reset
indications, provide help and switch between local and remote control mode.
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A071176 V1 EN
Figure 4: LHMI keypad with object control, navigation and command push-
buttons and RJ-45 communication port
The WHMI allows accessing the IED via a Web browser. The supported Web
browser versions are Internet Explorer 7.0, 8.0 and 9.0.
The menu tree structure on the WHMI is almost identical to the one on the LHMI.
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A070754 V4 EN
• Locally by connecting the laptop to the IED via the front communication port.
• Remotely over LAN/WAN.
2.6 Authorization
The user categories have been predefined for the LHMI and the WHMI, each with
different rights and default passwords.
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User audit trail is defined according to the selected set of requirements from IEEE
1686. The logging is based on predefined usernames or user categories. The user
audit trail events are supported in IEC 61850-8-1, PCM600, LHMI and WHMI.
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PCM600 Event Viewer can be used to view the audit trail events together with
normal events. Since only the administrator has the right to read audit trail,
authorization must be properly configured in PCM600. The audit trail cannot be
reset but PCM600 Event Viewer can filter data. Some of the audit trail events are
interesting also as normal process events.
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2.7 Communication
The IED supports a range of communication protocols including IEC 61850, IEC
60870-5-103 and Modbus®. Operational information and controls are available
through these protocols. However, some communication functionality, for
example, horizontal communication between the IEDs, is only enabled by the IEC
61850 communication protocol.
The IED can support five simultaneous clients. If PCM600 reserves one client
connection, only four client connections are left, for example, for IEC 61850 and
Modbus.
All communication connectors, except for the front port connector, are placed on
integrated optional communication modules. The IED can be connected to Ethernet-
based communication systems via the RJ-45 connector (100Base-TX) or the fibre-
optic LC connector (100Base-FX).
For the correct operation of redundant loop topology, it is essential that the external
switches in the network support the RSTP protocol and that it is enabled in the
switches. Otherwise, connecting the loop topology can cause problems to the
network. The IED itself does not support link-down detection or RSTP. The ring
recovery process is based on the aging of the MAC addresses, and the link-up/link-
down events can cause temporary breaks in communication. For a better
performance of the self-healing loop, it is recommended that the external switch
furthest from the IED loop is assigned as the root switch (bridge priority = 0) and
the bridge priority increases towards the IED loop. The end links of the IED loop
can be attached to the same external switch or to two adjacent external switches. A
self-healing Ethernet ring requires a communication module with at least two
Ethernet interfaces for all IEDs.
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Client A Client B
Network A
Network B
GUID-283597AF-9F38-4FC7-B87A-73BFDA272D0F V3 EN
PRP specifies that each device is connected in parallel to two local area networks.
HSR applies the PRP principle to rings and to the rings of rings to achieve cost-
effective redundancy. Thus, each device incorporates a switch element that
forwards frames from port to port. The HSR/PRP option is available for REF615,
REM615, RET615 and REU615.
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PRP
Each PRP node, called a doubly attached node with PRP (DANP), is attached to
two independent LANs operated in parallel. These parallel networks in PRP are
called LAN A and LAN B. The networks are completely separated to ensure failure
independence, and they can have different topologies. Both networks operate in
parallel, thus providing zero-time recovery and continuous checking of redundancy
to avoid communication failures. Non-PRP nodes, called singly attached nodes
(SANs), are either attached to one network only (and can therefore communicate
only with DANPs and SANs attached to the same network), or are attached through
a redundancy box, a device that behaves like a DANP.
COM600
SCADA
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HSR
HSR applies the PRP principle of parallel operation to a single ring, treating the
two directions as two virtual LANs. For each frame sent, a node, DANH, sends two
frames, one over each port. Both frames circulate in opposite directions over the
ring and each node forwards the frames it receives, from one port to the other.
When the originating node receives a frame sent to itself, it discards that to avoid
loops; therefore, no ring protocol is needed. Individually attached nodes, SANs,
such as laptops and printers, must be attached through a “redundancy box” that acts
as a ring element. For example, a 615 series IED with HSR support can be used as
a redundancy box.
GUID-207430A7-3AEC-42B2-BC4D-3083B3225990 V1 EN
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Function A B C D E F G H J K
Three-phase non-directional overcurrent
● HV) ● HV) ● HV) ● HV) ● HV) ● HV) ● HV) ● HV) ● HV)
protection, high stage, instance 1
Three-phase non-directional overcurrent
● LV) ● LV) ● LV) ● LV) ● LV) ● LV) ● LV) ● LV) ● LV)
protection, high stage, instance 2
Three-phase non-directional overcurrent
● HV) ● HV) ● HV) ● HV) ● HV) ● HV) ● HV) ● HV) ● HV)
protection, instantaneous stage, instance 1
Three-phase non-directional overcurrent
● LV) ● LV) ● LV) ● LV) ● LV) ● LV) ● LV) ● LV) ● LV)
protection, instantaneous stage, instance 2
Non-directional earth-fault protection, low ● ● ● ● ●
stage, instance 1 HV)1) HV)2) HV)1) HV)2) HV)2)
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Function A B C D E F G H J K
High impedance based restricted earth-fault ●
protection ● HV) LV)7) ● HV) ● LV)7) ● HV)
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Function A B C D E F G H J K
Residual current measurement, instance 2 ● LV) ● LV) ● LV) ● LV)
Three-phase voltage measurement ● HV) ● HV) ● HV) ● HV) ● HV)
Residual voltage measurement ● HV) ● HV) ● HV) ● HV) ● HV)
Sequence voltage measurement ● HV) ● HV) ● HV) ● HV) ● HV)
Three-phase power and energy measurement ● HV) ● HV) ● HV) ● HV) ● HV)
RTD/mA measurement o o o o o
● = included, ○ = optional at the time of order
HV = The function block is to be used on the high voltage side in the application
LV = The function block is to be used on the low voltage side in the application
The external I/O module’s binary inputs and outputs of can be used for the less time-
critical binary signals of the application. The integration enables releasing some
initially reserved binary inputs and outputs of the IED’s standard configuration.
The suitability of the IED’s binary outputs which have been selected for primary
device control should be carefully verified, for example make and carry and
breaking capacity. If the requirements for the primary device control circuit are not
met, using external auxiliary relays should be considered.
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GUID-4576631D-C686-454F-8CF0-DC654779B178 V1 EN
Figure 9: Drawing symbol used in the manual and the default connection of
the LED function blocks in the configurations
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GUID-529F6F95-5742-4D6F-8C55-04F6C14BFD94 V2 EN
30 RET615
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GUID-80F82A38-4519-4C09-A25D-86131D51331B V2 EN
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GUID-32E5D770-0A2D-4FF3-9EAF-E7A82DB8A66C V2 EN
32 RET615
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GUID-FC955C0D-4BF9-40A8-B953-429DE884FFE1 V2 EN
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GUID-D26C5FA8-D7E4-4959-AA36-B77D1A53392C V1 EN
34 RET615
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GUID-787C00E6-BEC2-4612-8183-195E01D9F5EF V
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GUID-AE41CEEF-C6E8-4292-8F0A-A5B962EBBC9C V1 EN
36 RET615
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GUID-4F252355-C97B-4110-8AAF-EB9816A13113 V1 EN
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GUID-59EE9058-5928-4E74-A3C1-3F2C9B6D3EB1 V1 EN
Functional diagrams
The functional diagrams describe the IED's functionality from the protection,
measuring, condition monitoring, disturbance recording, control and interlocking
perspective. Diagrams show the default functionality with simple symbol logics
forming principle diagrams. The external connections to primary devices are also
shown, stating the default connections to measuring transformers. The positive
measuring direction of directional protection functions is towards the outgoing feeder.
The functional diagrams are divided into sections with each section constituting
one functional entity. The external connections are also divided into sections. Only
the relevant connections for a particular functional entity are presented in each
section.
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Protection function blocks are part of the functional diagram. They are identified
based on their IEC 61850 name but the IEC based symbol and the ANSI function
number are also included. Some function blocks, such as PHHPTOC, are used
several times in the configuration. To separate the blocks from each other, the IEC
61850 name, IEC symbol and ANSI function number are appended with a running
number, that is an instance number, from one upwards. If the block has no suffix
after the IEC or ANSI symbol, the function block has been used, that is,
instantiated, only once. The IED’s internal functionality and the external
connections are separated with a dashed line presenting the IED’s physical casing.
3.4.1 Applications
The standard configuration includes three-phase transformer differential protection
for two-winding transformers, numerical restricted earth-fault protection for the high-
voltage (HV) side. The standard configuration is mainly intended for protection of
the power transformer between current transformers.
The IED with a standard configuration is delivered from the factory with default
settings and parameters. The end-user flexibility for incoming, outgoing and
internal signal designation within the IED enables this configuration to be further
adapted to different primary circuit layouts and the related functionality needs by
modifying the internal functionality using PCM600.
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3.4.2 Functions
Table 11: Functions included in the standard configuration A
Function IEC 61850 IEC 60617 IEC-ANSI
Protection
Three-phase non-directional overcurrent
PHLPTOC1 3I> (1) 51P-1 (1)
protection, low stage, instance 1
Three-phase non-directional overcurrent
PHLPTOC2 3I> (2) 51P-1 (2)
protection, low stage, instance 2
Three-phase non-directional overcurrent
PHHPTOC1 3I>> (1) 51P-2 (1)
protection, high stage, instance 1
Three-phase non-directional overcurrent
PHHPTOC2 3I>> (2) 51P-2 (2)
protection, high stage, instance 2
Three-phase non-directional overcurrent
PHIPTOC1 3I>>> (1) 50P/51P (1)
protection, instantaneous stage, instance 1
Three-phase non-directional overcurrent
PHIPTOC2 3I>>> (2) 50P/51P (2)
protection, instantaneous stage, instance 2
Non-directional earth-fault protection, low
EFLPTOC1 Io> (1) 51N-1 (1)
stage, instance 1
Non-directional earth-fault protection, high
EFHPTOC1 Io>> (1) 51N-2 (1)
stage, instance 1
Negative-sequence overcurrent protection,
NSPTOC1 I2> (1) 46 (1)
instance 1
Negative-sequence overcurrent protection,
NSPTOC2 I2> (2) 46 (2)
instance 2
Three-phase thermal overload protection for
T2PTTR1 3Ith>T 49T
power transformers, two time constants
Stabilized and instantaneous differential
TR2PTDF1 3dI>T 87T
protection for 2W –transformers
Numerical stabilized low impedance restricted
LREFPNDF1 dIoLo> 87NL
earth-fault protection
Circuit breaker failure protection CCBRBRF1 3I>/Io>BF 51BF/51NBF
Master trip, instance 1 TRPPTRC1 Master Trip (1) 94/86 (1)
Master trip, instance 2 TRPPTRC2 Master Trip (2) 94/86 (2)
Arc protection, instance 1 ARCSARC1 ARC (1) 50L/50NL (1)
Arc protection, instance 2 ARCSARC2 ARC (2) 50L/50NL (2)
Arc protection, instance 3 ARCSARC3 ARC (3) 50L/50NL (3)
Multi-purpose protection, instance 1 MAPGAPC1 MAP (1) MAP (1)
Multi-purpose protection, instance 2 MAPGAPC2 MAP (2) MAP (2)
Multi-purpose protection, instance 3 MAPGAPC3 MAP (3) MAP (3)
Multi-purpose protection, instance 4 MAPGAPC4 MAP (4) MAP (4)
Multi-purpose protection, instance 5 MAPGAPC5 MAP (5) MAP (5)
Multi-purpose protection, instance 6 MAPGAPC6 MAP (6) MAP (6)
Control
Circuit-breaker control CBXCBR1 I <-> O CB I <-> O CB
Table continues on next page
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LED Description
8 Disturbance recorder triggered
9 TCS, fuse failure, measuring circuit fault or circuit breaker supervision
10 Arc protection operate
11 Protection trip from external device
Additionally, all the digital inputs that are connected by default are also enabled
with the setting. Default triggering settings are selected depending on the
connected input signal type. Typically all protection START signals are selected to
trigger the disturbance recorded by default.
The analog channels have fixed connections towards the different function blocks
inside the IED’s standard configuration. Exceptions from this rule are the 12
analog channels available for the disturbance recorder function. These channels are
freely selectable and a part of the disturbance recorder’s parameter settings.
The analog channels are assigned to different functions. The common signal
marked with 3I represents the three phase currents of the high-voltage side of the
transformer and 3IB represents the three phase currents of the low-voltage side of
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the transformer. The signal marked with Io represents the neutral current measured
between the start point of the transformer and grounding on the high voltage side.
The functional diagrams describe the IED’s protection functionality in detail and
picture the factory set default connections.
GUID-924EE5B6-2E53-4547-AFEC-2BF37660AA66 V2 EN
For transformers having an on-line tap changer, the tap position information is
recommended to be used in differential protection, as the ratio difference of tap
changer movements can be corrected in TR2PTDF.
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All operate signals are connected to the Master Trip 1 and 2 and also to the alarm
LEDs. LED 1 is used for biased low-stage operate indication and LED 2 for
instantaneous high-stage of the differential protection.
GUID-1C4B6EFB-C39F-4D99-832A-F141FFBCBA9F V3 EN
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Three stages for both high-voltage and low-voltage sides as a total of six
overcurrent stages are offered for overcurrent and short-circuit protection. The high-
voltage side high stage (PHHPTOC1) can be blocked by energizing the binary
input 1 (X110:1-2) or by starting the high stage of the low-voltage side
(PHHPTOC2). Also the low-voltage side instantaneous stage is blocked by
activating the binary input (X110_BI1).
The operate of the overcurrent protection functions is connected to the output SO1
(X110:14-15-16). This output is used for giving a specific alarm of the overcurrent
protection operation.
GUID-16AE196B-0ED9-478B-91FB-70CF4A9C0B23 V2 EN
Two stages are offered for non-directional earth-fault protection. The earth-fault
protection measures the neutral current of the high-voltage side.
All operate signals are connected to the Master Trip as well as to the alarm LEDs.
LED 5 is used for non-directional earth-fault protection operate indication.
GUID-A8AB50BA-0D0A-454D-860C-2C721B3793F3 V2 EN
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GUID-BEC39E21-713A-434C-88E5-702CA4622699 V2 EN
GUID-B4800F23-400A-40DF-BAED-A99B116638A5 V3 EN
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GUID-C9527B95-0F59-42C3-A0D1-B468DD54B465 V2 EN
The circuit-breaker failure protection (CCBRBRF1) is initiated via the start input
by a number of different protection stages in the IED. CCBRBRF1 offers different
operating modes associated with the circuit-breaker position and the measured
phase and residual currents.
CCBRBRF1 has two operating outputs: TRRET and TRBU. The TRRET operate
output is used for retripping both the high-voltage and low-voltage side circuit
breakers through Master Trip 1 and 2. The TRBU operate output signal is
connected to the output PO2 (X100: 8-9). LED 6 is used for backup (TRBU)
operate indication.
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GUID-42911654-7FC8-4A91-8E52-89E062039C69 V2 EN
The arc protection offers individual function blocks for three arc sensors that can
be connected to the IED. Each arc protection function block has two different
operation modes, with or without the phase and residual current check. Operate
signals from the arc protection function blocks are connected to the Master Trip
and also to the alarm LED 10 as a common operate indication.
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GUID-96BB51D1-DB86-49BE-A5FE-25B304403C59 V2 EN
All start and operate signals from the protection stages are routed to trigger the
disturbance recorder or alternatively only to be recorded by the disturbance
recorder depending on the parameter settings. Additionally, the ARC protection
signals and the four binary inputs from X110 are also connected.
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GUID-F8B12B36-DF24-4907-8288-814A7C34D70E V2 EN
Two separate trip circuit supervision functions are included, TCSSCBR1 for PO3
(X100:15-19) and TCSSCBR2 for PO4 (X100:20-24). Both functions are blocked
by the Master Trip (TRPPTRC1 and TRPPTRC2) and the circuit breaker open
signal. The TCS alarm indication is connected to LED 9.
RET615 51
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RET615 standard configurations
GUID-FCB8739C-C3C7-4994-BAC6-18BA323962F7 V2 EN
The operate signals from the protections are connected to the two trip output
contacts PO3 (X100:15-19) and PO4 (X100:20-24) via the corresponding Master
Trips TRPPTRC1 and TRPPTRC2. Open control commands to the circuit breaker
from local or remote CBXCBR1-exe_op are connected directly to the output PO3
(X100:15-19).
TRPPTRC1 and 2 provide the lockout/latching function, event generation and the
trip signal duration setting. If the lockout operation mode is selected, one binary
input can be reassigned to the RST_LKOUT input of the Master Trip to enable
external reset with a push button.
The external trip indication is connected also to the alarm LED 11.
52 RET615
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1YHT530003D05 C Section 3
RET615 standard configurations
GUID-0D5A94B8-8D06-4710-8B97-31D9C05FAAA4 V2 EN
There are two types of disconnector and earthing switch blocks available.
DCSXSWI1...3 and ESSXSWI1...2 are status only type, and DCXSWI1...2 and
ESXSWI1 are controllable type. By default, the status only blocks are connected in
standard configuration logic. If controllable operation is preferred, the controllable
type of disconnector and earthing switch blocks can be used instead of the status
only type. The connection and configuration of the control blocks can be done
using PCM600.
The binary inputs 5 and 6 of the additional card X110 are used for busbar
disconnector (DCSXSWI1) or circuit-breaker truck position indication.
The circuit breaker closing is enabled when the ENA_CLOSE input is activated.
The input can be activated by the configuration logic, which is a combination of
the disconnector position status and the statuses of the master trip logics and gas
pressure alarm and circuit-breaker spring charging. The OKPOS output from the
DCSXSWI block defines if the disconnector or the breaker truck is definitely either
RET615 53
Application Manual
Section 3 1YHT530003D05 C
RET615 standard configurations
open (in test position) or close (in service position). This, together with non-active
trip signal and non-active gas pressure alarm, activates the close-enable signal to
the circuit-breaker control function block. The open operation is always enabled.
The ITL_BYPASS input can be used, for example, to always enable the closing of
the circuit breaker when the circuit breaker truck is in the test position, despite of
the interlocking conditions being active when the circuit breaker truck is closed in
service position.
The circuit breaker condition monitoring function (SSCBR) supervises the circuit
breaker status based on the binary input information connected and measured
current levels. The function introduces various supervision methods. The
corresponding supervision alarm signals are routed to LED 9.
54 RET615
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1YHT530003D05 C Section 3
RET615 standard configurations
GUID-EF27034F-786A-460C-9350-6A2E02C4A3BC V3 EN
The signal outputs from the IED are connected to give dedicated information on:
TPGAPC are timers and used for setting the minimum pulse length for the outputs.
There are four generic timers (TPGAPC1..4) available in the IED. The remaining
RET615 55
Application Manual
Section 3 1YHT530003D05 C
RET615 standard configurations
ones not described in the functional diagram are available in PCM600 for
connection where applicable.
GUID-F78772E5-8513-4422-B928-5B6D7C97B828 V2 EN
To increase the sensitivity of the stabilized differential function, the tap position
information from the tap changer is connected to the IED via the tap changer
position indication function TPOSSLTC1. TPOSSLTC1 is connected to the binary
inputs of the X130 BIO card or alternatively to the mA input of the RTD card.
TPOSSLTC1 uses binary-coded methods to generate the integer value of the tap
changer position.
3.5.1 Applications
The IED with a standard configuration is delivered from the factory with default
settings and parameters. The end-user flexibility for incoming, outgoing and
internal signal designation within the IED enables this configuration to be further
adapted to different primary circuit layouts and the related functionality needs by
modifying the internal functionality using PCM600.
56 RET615
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1YHT530003D05 C Section 3
RET615 standard configurations
3.5.2 Functions
RET615 57
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RET615 standard configurations
58 RET615
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1YHT530003D05 C Section 3
RET615 standard configurations
RET615 59
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Section 3 1YHT530003D05 C
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LED Description
8 Disturbance recorder triggered
9 TCS, fuse failure, measuring circuit fault or circuit breaker supervision
10 Arc protection operate
11 Protection trip from external device
Additionally, all the digital inputs that are connected by default are also enabled
with the setting. Default triggering settings are selected depending on the
connected input signal type. Typically all protection START signals are selected to
trigger the disturbance recorded by default.
The analog channels have fixed connections towards the different function blocks
inside the IED’s standard configuration. Exceptions from this rule are the 12
analog channels available for the disturbance recorder function. These channels are
freely selectable and a part of the disturbance recorder’s parameter settings.
The analog channels are assigned to different functions. The common signal
marked with 3I represents the three phase currents of the high-voltage side of the
transformer and 3IB represents the three phase currents of the low-voltage side of
60 RET615
Application Manual
1YHT530003D05 C Section 3
RET615 standard configurations
the transformer. The signal marked with IoB represents the neutral current
measured between the start point of the transformer and grounding on the low
voltage side.
The functional diagrams describe the IED’s protection functionality in detail and
picture the factory set default connections.
GUID-B811E0D7-9BFE-4C6A-B275-4AE76A09300A V2 EN
For transformers having an on-line tap changer, the tap position information is
recommended to be used in differential protection, as the ratio difference of tap
changer movements can be corrected in TR2PTDF.
RET615 61
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RET615 standard configurations
All operate signals are connected to the Master Trip 1 and 2 and also to the alarm
LEDs. LED 1 is used for biased low-stage operate indication and LED 2 for
instantaneous high-stage of the differential protection.
GUID-1C4B6EFB-C39F-4D99-832A-F141FFBCBA9F V3 EN
62 RET615
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1YHT530003D05 C Section 3
RET615 standard configurations
Three stages for both high-voltage and low-voltage sides as a total of six
overcurrent stages are offered for overcurrent and short-circuit protection. The high-
voltage side high stage (PHHPTOC1) can be blocked by energizing the binary
input 1 (X110:1-2) or by starting the high stage of the low-voltage side
(PHHPTOC2). Also the low-voltage side instantaneous stage is blocked by
activating the binary input (X110_BI1).
The operate of the overcurrent protection functions is connected to the output SO1
(X110:14-15-16). This output is used for giving a specific alarm of the overcurrent
protection operation.
GUID-BEF98714-E04C-4ABF-B846-F8B76D498FC9 V2 EN
Two stages are offered for non-directional earth-fault protection. The earth-fault
protection measures the neutral current of the low-voltage side.
All operate signals are connected to the Master Trip as well as to the alarm LEDs.
LED 5 is used for non-directional earth-fault protection operate indication.
GUID-CF15BA10-B412-4F4B-8A67-99BB35C5BC46 V2 EN
RET615 63
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RET615 standard configurations
GUID-9A441D12-9499-40BA-BB9A-6BD00E3CC8AC V2 EN
GUID-D4CC39C0-F782-4E80-9949-2084BD3DE5A1 V1 EN
64 RET615
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1YHT530003D05 C Section 3
RET615 standard configurations
GUID-C4825123-0299-4788-83FA-452FD7974E2D V1 EN
The circuit-breaker failure protection (CCBRBRF1) is initiated via the start input
by a number of different protection stages in the IED. CCBRBRF1 offers different
operating modes associated with the circuit-breaker position and the measured
phase and residual currents.
CCBRBRF1 has two operating outputs: TRRET and TRBU. The TRRET operate
output is used for retripping both the high-voltage and low-voltage side circuit
breakers through Master Trip 1 and 2. The TRBU operate output signal is
connected to the output PO2 (X100: 8-9). LED 6 is used for backup (TRBU)
operate indication.
RET615 65
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RET615 standard configurations
GUID-42911654-7FC8-4A91-8E52-89E062039C69 V2 EN
The arc protection offers individual function blocks for three arc sensors that can
be connected to the IED. Each arc protection function block has two different
operation modes, with or without the phase and residual current check. Operate
signals from the arc protection function blocks are connected to the Master Trip
and also to the alarm LED 10 as a common operate indication.
66 RET615
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RET615 standard configurations
GUID-7F4CB02E-A271-480F-B2C7-968CED79DA13 V1 EN
All start and operate signals from the protection stages are routed to trigger the
disturbance recorder or alternatively only to be recorded by the disturbance
recorder depending on the parameter settings. Additionally, the ARC protection
signals and the four binary inputs from X110 are also connected.
RET615 67
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RET615 standard configurations
GUID-F8B12B36-DF24-4907-8288-814A7C34D70E V2 EN
Two separate trip circuit supervision functions are included, TCSSCBR1 for PO3
(X100:15-19) and TCSSCBR2 for PO4 (X100:20-24). Both functions are blocked
by the Master Trip (TRPPTRC1 and TRPPTRC2) and the circuit breaker open
signal. The TCS alarm indication is connected to LED 9.
68 RET615
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RET615 standard configurations
GUID-0DB6F455-4206-4FE0-8E13-574312D34CED V1 EN
The operate signals from the protections are connected to the two trip output
contacts PO3 (X100:15-19) and PO4 (X100:20-24) via the corresponding Master
Trips TRPPTRC1 and TRPPTRC2. Open control commands to the circuit breaker
from local or remote CBXCBR1-exe_op are connected directly to the output PO3
(X100:15-19).
TRPPTRC1 and 2 provide the lockout/latching function, event generation and the
trip signal duration setting. If the lockout operation mode is selected, one binary
input can be reassigned to the RST_LKOUT input of the Master Trip to enable
external reset with a push button.
The external trip indication is connected also to the alarm LED 11.
RET615 69
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RET615 standard configurations
GUID-0D5A94B8-8D06-4710-8B97-31D9C05FAAA4 V2 EN
There are two types of disconnector and earthing switch blocks available.
DCSXSWI1...3 and ESSXSWI1...2 are status only type, and DCXSWI1...2 and
ESXSWI1 are controllable type. By default, the status only blocks are connected in
standard configuration logic. If controllable operation is preferred, the controllable
type of disconnector and earthing switch blocks can be used instead of the status
only type. The connection and configuration of the control blocks can be done
using PCM600.
The binary inputs 5 and 6 of the additional card X110 are used for busbar
disconnector (DCSXSWI1) or circuit-breaker truck position indication.
The circuit breaker closing is enabled when the ENA_CLOSE input is activated.
The input can be activated by the configuration logic, which is a combination of
the disconnector position status and the statuses of the master trip logics and gas
pressure alarm and circuit-breaker spring charging. The OKPOS output from the
DCSXSWI block defines if the disconnector or the breaker truck is definitely either
70 RET615
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1YHT530003D05 C Section 3
RET615 standard configurations
open (in test position) or close (in service position). This, together with non-active
trip signal and non-active gas pressure alarm, activates the close-enable signal to
the circuit-breaker control function block. The open operation is always enabled.
The ITL_BYPASS input can be used, for example, to always enable the closing of
the circuit breaker when the circuit breaker truck is in the test position, despite of
the interlocking conditions being active when the circuit breaker truck is closed in
service position.
The circuit breaker condition monitoring function (SSCBR) supervises the circuit
breaker status based on the binary input information connected and measured
current levels. The function introduces various supervision methods. The
corresponding supervision alarm signals are routed to LED 9.
RET615 71
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Section 3 1YHT530003D05 C
RET615 standard configurations
GUID-91CE1A30-0BFB-4609-B2D3-8D468C38BE1F V1 EN
The signal outputs from the IED are connected to give dedicated information on:
TPGAPC are timers and used for setting the minimum pulse length for the outputs.
There are four generic timers (TPGAPC1..4) available in the IED. The remaining
72 RET615
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1YHT530003D05 C Section 3
RET615 standard configurations
ones not described in the functional diagram are available in PCM600 for
connection where applicable.
GUID-F78772E5-8513-4422-B928-5B6D7C97B828 V2 EN
To increase the sensitivity of the stabilized differential function, the tap position
information from the tap changer is connected to the IED via the tap changer
position indication function TPOSSLTC1. TPOSSLTC1 is connected to the binary
inputs of the X130 BIO card or alternatively to the mA input of the RTD card.
TPOSSLTC1 uses binary-coded methods to generate the integer value of the tap
changer position.
3.6.1 Applications
The IED with a standard configuration is delivered from the factory with default
settings and parameters. The end-user flexibility for incoming, outgoing and
internal signal designation within the IED enables this configuration to be further
adapted to different primary circuit layouts and the related functionality needs by
modifying the internal functionality using PCM600.
RET615 73
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Section 3 1YHT530003D05 C
RET615 standard configurations
3.6.2 Functions
74 RET615
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1YHT530003D05 C Section 3
RET615 standard configurations
RET615 75
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RET615 standard configurations
76 RET615
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1YHT530003D05 C Section 3
RET615 standard configurations
LED Description
7 NPS or thermal overload protection operated
8 Disturbance recorder triggered
9 TCS, fuse failure, measuring circuit fault or circuit breaker supervision
10 Arc protection operate
11 Protection trip from external device
Additionally, all the digital inputs that are connected by default are also enabled
with the setting. Default triggering settings are selected depending on the
connected input signal type. Typically all protection START signals are selected to
trigger the disturbance recorded by default.
The analog channels have fixed connections towards the different function blocks
inside the IED’s standard configuration. Exceptions from this rule are the 12
analog channels available for the disturbance recorder function. These channels are
freely selectable and a part of the disturbance recorder’s parameter settings.
The analog channels are assigned to different functions. The common signal
marked with 3I represents the three phase currents of the high-voltage side of the
RET615 77
Application Manual
Section 3 1YHT530003D05 C
RET615 standard configurations
transformer and 3IB represents the three phase currents of the low-voltage side of
the transformer. The signal marked with Io represents the neutral current measured
between the start point of the transformer and grounding on the high voltage side.
The functional diagrams describe the IED’s protection functionality in detail and
picture the factory set default connections.
GUID-CE6678E5-8383-4CB0-9F75-C1BA8B3662D1 V2 EN
For transformers having an on-line tap changer, the tap position information is
recommended to be used in differential protection, as the ratio difference of tap
changer movements can be corrected in TR2PTDF.
78 RET615
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1YHT530003D05 C Section 3
RET615 standard configurations
All operate signals are connected to the Master Trip 1 and 2 and also to the alarm
LEDs. LED 1 is used for biased low-stage operate indication and LED 2 for
instantaneous high-stage of the differential protection.
GUID-1C4B6EFB-C39F-4D99-832A-F141FFBCBA9F V3 EN
RET615 79
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RET615 standard configurations
Three stages for both high-voltage and low-voltage sides as a total of six
overcurrent stages are offered for overcurrent and short-circuit protection. The high-
voltage side high stage (PHHPTOC1) can be blocked by energizing the binary
input 1 (X110:1-2) or by starting the high stage of the low-voltage side
(PHHPTOC2). Also the low-voltage side instantaneous stage is blocked by
activating the binary input (X110_BI1).
The operate of the overcurrent protection functions is connected to the output SO1
(X110:14-15-16). This output is used for giving a specific alarm of the overcurrent
protection operation.
GUID-405919EB-7FA4-45D9-BCCB-B876E72A6950 V2 EN
Two stages are offered for non-directional earth-fault protection. The earth-fault
protection uses the residual current calculated from the high-voltage side phase
currents.
All operate signals are connected to the Master Trip 1 and also to the alarm LEDs.
LED 5 is used for non-directional earth-fault protection operate indication.
GUID-5CD36CE2-EE91-4A16-A93A-92786B73C331 V2 EN
80 RET615
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1YHT530003D05 C Section 3
RET615 standard configurations
GUID-9DCFCF0A-C00E-4642-AA74-CB18F9A2F755 V2 EN
GUID-AE2AD913-A841-4CF8-BD23-DD79CDC10BB4 V1 EN
RET615 81
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Section 3 1YHT530003D05 C
RET615 standard configurations
overload protection is connected to the Master Trip 2. LED 7 is used for the
thermal overload protection alarm indication, the same as for negative-sequence
overcurrent protection operate indication.
GUID-5BF71150-B75E-405A-91CF-87CDF86639BE V2 EN
The circuit-breaker failure protection (CCBRBRF1) is initiated via the start input
by a number of different protection stages in the IED. CCBRBRF1 offers different
operating modes associated with the circuit-breaker position and the measured
phase and residual currents.
CCBRBRF1 has two operating outputs: TRRET and TRBU. The TRRET operate
output is used for retripping both the high-voltage and low-voltage side circuit
breakers through Master Trip 1 and 2. The TRBU operate output signal is
connected to the output PO2 (X100: 8-9). LED 6 is used for backup (TRBU)
operate indication.
82 RET615
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1YHT530003D05 C Section 3
RET615 standard configurations
GUID-42911654-7FC8-4A91-8E52-89E062039C69 V2 EN
The arc protection offers individual function blocks for three arc sensors that can
be connected to the IED. Each arc protection function block has two different
operation modes, with or without the phase and residual current check. Operate
signals from the arc protection function blocks are connected to the Master Trip
and also to the alarm LED 10 as a common operate indication.
RET615 83
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RET615 standard configurations
GUID-96BB51D1-DB86-49BE-A5FE-25B304403C59 V2 EN
All start and operate signals from the protection stages are routed to trigger the
disturbance recorder or alternatively only to be recorded by the disturbance
recorder depending on the parameter settings. Additionally, the ARC protection
signals and the four binary inputs from X110 are also connected.
84 RET615
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1YHT530003D05 C Section 3
RET615 standard configurations
GUID-F8B12B36-DF24-4907-8288-814A7C34D70E V2 EN
Two separate trip circuit supervision functions are included, TCSSCBR1 for PO3
(X100:15-19) and TCSSCBR2 for PO4 (X100:20-24). Both functions are blocked
by the Master Trip (TRPPTRC1 and TRPPTRC2) and the circuit breaker open
signal. The TCS alarm indication is connected to LED 9.
RET615 85
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RET615 standard configurations
GUID-FCB8739C-C3C7-4994-BAC6-18BA323962F7 V2 EN
The operate signals from the protections are connected to the two trip output
contacts PO3 (X100:15-19) and PO4 (X100:20-24) via the corresponding Master
Trips TRPPTRC1 and TRPPTRC2. Open control commands to the circuit breaker
from local or remote CBXCBR1-exe_op are connected directly to the output PO3
(X100:15-19).
TRPPTRC1 and 2 provide the lockout/latching function, event generation and the
trip signal duration setting. If the lockout operation mode is selected, one binary
input can be reassigned to the RST_LKOUT input of the Master Trip to enable
external reset with a push button.
The external trip indication is connected also to the alarm LED 11.
86 RET615
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1YHT530003D05 C Section 3
RET615 standard configurations
GUID-0D5A94B8-8D06-4710-8B97-31D9C05FAAA4 V2 EN
There are two types of disconnector and earthing switch blocks available.
DCSXSWI1...3 and ESSXSWI1...2 are status only type, and DCXSWI1...2 and
ESXSWI1 are controllable type. By default, the status only blocks are connected in
standard configuration logic. If controllable operation is preferred, the controllable
type of disconnector and earthing switch blocks can be used instead of the status
only type. The connection and configuration of the control blocks can be done
using PCM600.
The binary inputs 5 and 6 of the additional card X110 are used for busbar
disconnector (DCSXSWI1) or circuit-breaker truck position indication.
The circuit breaker closing is enabled when the ENA_CLOSE input is activated.
The input can be activated by the configuration logic, which is a combination of
the disconnector position status and the statuses of the master trip logics and gas
pressure alarm and circuit-breaker spring charging. The OKPOS output from the
DCSXSWI block defines if the disconnector or the breaker truck is definitely either
RET615 87
Application Manual
Section 3 1YHT530003D05 C
RET615 standard configurations
open (in test position) or close (in service position). This, together with non-active
trip signal and non-active gas pressure alarm, activates the close-enable signal to
the circuit-breaker control function block. The open operation is always enabled.
The ITL_BYPASS input can be used, for example, to always enable the closing of
the circuit breaker when the circuit breaker truck is in the test position, despite of
the interlocking conditions being active when the circuit breaker truck is closed in
service position.
The circuit breaker condition monitoring function (SSCBR) supervises the circuit
breaker status based on the binary input information connected and measured
current levels. The function introduces various supervision methods. The
corresponding supervision alarm signals are routed to LED 9.
88 RET615
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1YHT530003D05 C Section 3
RET615 standard configurations
GUID-EF27034F-786A-460C-9350-6A2E02C4A3BC V3 EN
The signal outputs from the IED are connected to give dedicated information on:
TPGAPC are timers and used for setting the minimum pulse length for the outputs.
There are four generic timers (TPGAPC1..4) available in the IED. The remaining
RET615 89
Application Manual
Section 3 1YHT530003D05 C
RET615 standard configurations
ones not described in the functional diagram are available in PCM600 for
connection where applicable.
GUID-F78772E5-8513-4422-B928-5B6D7C97B828 V2 EN
To increase the sensitivity of the stabilized differential function, the tap position
information from the tap changer is connected to the IED via the tap changer
position indication function TPOSSLTC1. TPOSSLTC1 is connected to the binary
inputs of the X130 BIO card or alternatively to the mA input of the RTD card.
TPOSSLTC1 uses binary-coded methods to generate the integer value of the tap
changer position.
3.7.1 Applications
The IED with a standard configuration is delivered from the factory with default
settings and parameters. The end-user flexibility for incoming, outgoing and
internal signal designation within the IED enables this configuration to be further
adapted to different primary circuit layouts and the related functionality needs by
modifying the internal functionality using PCM600.
90 RET615
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1YHT530003D05 C Section 3
RET615 standard configurations
3.7.2 Functions
RET615 91
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92 RET615
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1YHT530003D05 C Section 3
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RET615 93
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LED Description
8 Disturbance recorder triggered
9 TCS, fuse failure, measuring circuit fault or circuit breaker supervision
10 Arc protection operate
11 Protection trip from external device
Additionally, all the digital inputs that are connected by default are also enabled
with the setting. Default triggering settings are selected depending on the
connected input signal type. Typically all protection START signals are selected to
trigger the disturbance recorded by default.
The analog channels have fixed connections towards the different function blocks
inside the IED’s standard configuration. Exceptions from this rule are the 12
analog channels available for the disturbance recorder function. These channels are
freely selectable and a part of the disturbance recorder’s parameter settings.
The analog channels are assigned to different functions. The common signal
marked with 3I represents the three phase currents of the high-voltage side of the
transformer and 3IB represents the three phase currents of the low-voltage side of
94 RET615
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1YHT530003D05 C Section 3
RET615 standard configurations
the transformer. The signal marked with IoB represents the neutral current
measured between the start point of the transformer and grounding on the low
voltage side.
The functional diagrams describe the IED’s protection functionality in detail and
picture the factory set default connections.
GUID-99A6097A-7411-40E3-B6CE-694B1246D4B9 V3 EN
For transformers having an on-line tap changer, the tap position information is
recommended to be used in differential protection, as the ratio difference of tap
changer movements can be corrected in TR2PTDF.
RET615 95
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RET615 standard configurations
All operate signals are connected to the Master Trip 1 and 2 and also to the alarm
LEDs. LED 1 is used for biased low-stage operate indication and LED 2 for
instantaneous high-stage of the differential protection.
GUID-1C4B6EFB-C39F-4D99-832A-F141FFBCBA9F V3 EN
96 RET615
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Three stages for both high-voltage and low-voltage sides as a total of six
overcurrent stages are offered for overcurrent and short-circuit protection. The high-
voltage side high stage (PHHPTOC1) can be blocked by energizing the binary
input 1 (X110:1-2) or by starting the high stage of the low-voltage side
(PHHPTOC2). Also the low-voltage side instantaneous stage is blocked by
activating the binary input (X110_BI1).
The operate of the overcurrent protection functions is connected to the output SO1
(X110:14-15-16). This output is used for giving a specific alarm of the overcurrent
protection operation.
GUID-9EA539DB-B9C7-4C3D-BFF4-810F66403743 V2 EN
Two stages are offered for non-directional earth-fault protection. The earth-fault
protection uses the residual current calculated from the low-voltage side phase
currents.
All operate signals are connected to the Master Trip 2 and also to the alarm LEDs.
LED 5 is used for non-directional earth-fault protection operate indication.
GUID-5CD36CE2-EE91-4A16-A93A-92786B73C331 V2 EN
RET615 97
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GUID-9DCFCF0A-C00E-4642-AA74-CB18F9A2F755 V2 EN
GUID-34FCACA0-E981-42D3-9DCC-A6FD1E8DC214 V1 EN
98 RET615
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GUID-429A2BA1-3C70-43BF-80EB-36503734D972 V1 EN
The circuit-breaker failure protection (CCBRBRF1) is initiated via the start input
by a number of different protection stages in the IED. CCBRBRF1 offers different
operating modes associated with the circuit-breaker position and the measured
phase and residual currents.
CCBRBRF1 has two operating outputs: TRRET and TRBU. The TRRET operate
output is used for retripping both the high-voltage and low-voltage side circuit
breakers through Master Trip 1 and 2. The TRBU operate output signal is
connected to the output PO2 (X100: 8-9). LED 6 is used for backup (TRBU)
operate indication.
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GUID-42911654-7FC8-4A91-8E52-89E062039C69 V2 EN
The arc protection offers individual function blocks for three arc sensors that can
be connected to the IED. Each arc protection function block has two different
operation modes, with or without the phase and residual current check. Operate
signals from the arc protection function blocks are connected to the Master Trip
and also to the alarm LED 10 as a common operate indication.
100 RET615
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GUID-6942C970-C7A6-4B62-8466-2F4E8B7AA040 V1 EN
All start and operate signals from the protection stages are routed to trigger the
disturbance recorder or alternatively only to be recorded by the disturbance
recorder depending on the parameter settings. Additionally, the ARC protection
signals and the four binary inputs from X110 are also connected.
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GUID-F8B12B36-DF24-4907-8288-814A7C34D70E V2 EN
Two separate trip circuit supervision functions are included, TCSSCBR1 for PO3
(X100:15-19) and TCSSCBR2 for PO4 (X100:20-24). Both functions are blocked
by the Master Trip (TRPPTRC1 and TRPPTRC2) and the circuit breaker open
signal. The TCS alarm indication is connected to LED 9.
102 RET615
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GUID-00B5279F-3CCB-44CC-A391-4E398782E7A5 V1 EN
The operate signals from the protections are connected to the two trip output
contacts PO3 (X100:15-19) and PO4 (X100:20-24) via the corresponding Master
Trips TRPPTRC1 and TRPPTRC2. Open control commands to the circuit breaker
from local or remote CBXCBR1-exe_op are connected directly to the output PO3
(X100:15-19).
TRPPTRC1 and 2 provide the lockout/latching function, event generation and the
trip signal duration setting. If the lockout operation mode is selected, one binary
input can be reassigned to the RST_LKOUT input of the Master Trip to enable
external reset with a push button.
The external trip indication is connected also to the alarm LED 11.
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GUID-0D5A94B8-8D06-4710-8B97-31D9C05FAAA4 V2 EN
There are two types of disconnector and earthing switch blocks available.
DCSXSWI1...3 and ESSXSWI1...2 are status only type, and DCXSWI1...2 and
ESXSWI1 are controllable type. By default, the status only blocks are connected in
standard configuration logic. If controllable operation is preferred, the controllable
type of disconnector and earthing switch blocks can be used instead of the status
only type. The connection and configuration of the control blocks can be done
using PCM600.
The binary inputs 5 and 6 of the additional card X110 are used for busbar
disconnector (DCSXSWI1) or circuit-breaker truck position indication.
The circuit breaker closing is enabled when the ENA_CLOSE input is activated.
The input can be activated by the configuration logic, which is a combination of
the disconnector position status and the statuses of the master trip logics and gas
pressure alarm and circuit-breaker spring charging. The OKPOS output from the
DCSXSWI block defines if the disconnector or the breaker truck is definitely either
104 RET615
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open (in test position) or close (in service position). This, together with non-active
trip signal and non-active gas pressure alarm, activates the close-enable signal to
the circuit-breaker control function block. The open operation is always enabled.
The ITL_BYPASS input can be used, for example, to always enable the closing of
the circuit breaker when the circuit breaker truck is in the test position, despite of
the interlocking conditions being active when the circuit breaker truck is closed in
service position.
The circuit breaker condition monitoring function (SSCBR) supervises the circuit
breaker status based on the binary input information connected and measured
current levels. The function introduces various supervision methods. The
corresponding supervision alarm signals are routed to LED 9.
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GUID-861204B1-D644-41A1-9868-E28545574FF8 V1 EN
The signal outputs from the IED are connected to give dedicated information on:
TPGAPC are timers and used for setting the minimum pulse length for the outputs.
There are four generic timers (TPGAPC1..4) available in the IED. The remaining
106 RET615
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ones not described in the functional diagram are available in PCM600 for
connection where applicable.
GUID-F78772E5-8513-4422-B928-5B6D7C97B828 V2 EN
To increase the sensitivity of the stabilized differential function, the tap position
information from the tap changer is connected to the IED via the tap changer
position indication function TPOSSLTC1. TPOSSLTC1 is connected to the binary
inputs of the X130 BIO card or alternatively to the mA input of the RTD card.
TPOSSLTC1 uses binary-coded methods to generate the integer value of the tap
changer position.
3.8.1 Applications
The IED with a standard configuration is delivered from the factory with default
settings and parameters. The end-user flexibility for incoming, outgoing and
internal signal designation within the IED enables this configuration to be further
adapted to different primary circuit layouts and the related functionality needs by
modifying the internal functionality using PCM600.
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3.8.2 Functions
Table 39: Functions included in the standard configuration E
Function IEC 61850 IEC 60617 IEC-ANSI
Protection
Three-phase non-directional overcurrent
PHLPTOC1 3I> (1) 51P-1 (1)
protection, low stage, instance 1
Three-phase non-directional overcurrent
PHLPTOC2 3I> (2) 51P-1 (2)
protection, low stage, instance 2
Three-phase non-directional overcurrent
PHHPTOC1 3I>> (1) 51P-2 (1)
protection, high stage, instance 1
Three-phase non-directional overcurrent
PHHPTOC2 3I>> (2) 51P-2 (2)
protection, high stage, instance 2
Three-phase non-directional overcurrent
PHIPTOC1 3I>>> (1) 50P/51P (1)
protection, instantaneous stage, instance 1
Three-phase non-directional overcurrent
PHIPTOC2 3I>>> (2) 50P/51P (2)
protection, instantaneous stage, instance 2
Non-directional earth-fault protection, low
EFLPTOC1 Io> (1) 51N-1 (1)
stage, instance 1
Non-directional earth-fault protection, high
EFHPTOC1 Io>> (1) 51N-2 (1)
stage, instance 1
Negative-sequence overcurrent protection,
NSPTOC1 I2> (1) 46 (1)
instance 1
Negative-sequence overcurrent protection,
NSPTOC2 I2> (2) 46 (2)
instance 2
Residual overvoltage protection, instance 1 ROVPTOV1 Uo> (1) 59G (1)
Residual overvoltage protection, instance 2 ROVPTOV2 Uo> (2) 59G (2)
Three-phase undervoltage protection, instance
PHPTUV1 3U< (1) 27 (1)
1
Three-phase undervoltage protection, instance
PHPTUV2 3U< (2) 27 (2)
2
Three-phase overvoltage protection, instance 1 PHPTOV1 3U> (1) 59 (1)
Three-phase overvoltage protection, instance 2 PHPTOV2 3U> (2) 59 (2)
Three-phase thermal overload protection for
T2PTTR1 3Ith>T 49T
power transformers, two time constants
Stabilized and instantaneous differential
TR2PTDF1 3dI>T 87T
protection for 2W –transformers
Numerical stabilized low impedance restricted
LREFPNDF1 dIoLo> 87NL
earth-fault protection
Circuit breaker failure protection CCBRBRF1 3I>/Io>BF 51BF/51NBF
Master trip, instance 1 TRPPTRC1 Master Trip (1) 94/86 (1)
Master trip, instance 2 TRPPTRC2 Master Trip (2) 94/86 (2)
Arc protection, instance 1 ARCSARC1 ARC (1) 50L/50NL (1)
Arc protection, instance 2 ARCSARC2 ARC (2) 50L/50NL (2)
Arc protection, instance 3 ARCSARC3 ARC (3) 50L/50NL (3)
Control
Table continues on next page
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RET615 109
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110 RET615
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Additionally, all the digital inputs that are connected by default are also enabled
with the setting. Default triggering settings are selected depending on the
connected input signal type. Typically all protection START signals are selected to
trigger the disturbance recorded by default.
The functional diagrams describe the default input, output, alarm LED and function-
to-function connections. The default connections can be viewed and changed with
PCM600 according to the application requirements, if necessary.
The analog channels have fixed connections towards the different function blocks
inside the IED’s standard configuration. Exceptions from this rule are the 12
analog channels available for the disturbance recorder function. These channels are
freely selectable and a part of the disturbance recorder’s parameter settings.
The analog channels are assigned to different functions. The common signals
marked with 3I and 3U represent the three phase currents and voltages of the high-
voltage side of the transformer respectively, and 3IB represents the three phase
currents of the low-voltage side of the transformer. The signal marked with Io
represents the measured neutral current measured between the start point of the
transformer and grounding on the high voltage side. The signal marked with Uo
represents the measured residual voltage via open-delta connected voltage
transformers on the high voltage side.
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The functional diagrams describe the IED’s protection functionality in detail and
picture the factory set default connections.
GUID-B444DCDF-F010-467A-9B00-07C1E37207B9 V2 EN
112 RET615
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For transformers having an on-line tap changer, the tap position information is
recommended to be used in differential protection, as the ratio difference of tap
changer movements can be corrected in TR2PTDF.
All operate signals are connected to the Master Trip 1 and 2 and also to the alarm
LEDs. LED 1 is used for biased low-stage operate indication and LED 2 for
instantaneous high-stage of the differential protection.
GUID-2AF3E8AD-2FB2-4C2B-9855-52DDE5B57495 V1 EN
Three stages for both high-voltage and low-voltage sides as a total of six
overcurrent stages are offered for overcurrent and short-circuit protection. The high-
voltage side high stage (PHHPTOC1) can be blocked by energizing the binary
input 1 (X110:1-2) or by starting the high stage of the low-voltage side
RET615 113
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The operate of the overcurrent protection functions is connected to the output SO1
(X110:14-15-16). This output is used for giving a specific alarm of the overcurrent
protection operation.
GUID-B50BF279-890D-479D-9E31-F71C6D852AA5 V1 EN
Two stages are offered for non-directional earth-fault protection. The earth-fault
protection measures the neutral current of the low-voltage side.
All operate signals are connected to the Master Trip as well as to the alarm LEDs.
LED 3 is used for non-directional earth-fault protection operate indication.
GUID-9E516077-7D60-44B0-AE40-8A6C17B43B4B V1 EN
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GUID-CEDAF363-53D4-4C49-B570-C78AC13DDF82 V1 EN
GUID-6FC50ECB-7261-420F-9F79-F09F274A823D V2 EN
RET615 115
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GUID-F10B950D-2141-44DC-9107-3983DD3234EA V1 EN
GUID-C53C6AD2-061B-4483-9931-A227EFF66AA8 V2 EN
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GUID-0D218E13-46B7-4299-A30C-793B72E43572 V1 EN
The circuit-breaker failure protection (CCBRBRF1) is initiated via the start input
by a number of different protection stages in the IED. CCBRBRF1 offers different
operating modes associated with the circuit-breaker position and the measured
phase and residual currents.
CCBRBRF1 has two operating outputs: TRRET and TRBU. The TRRET operate
output is used for retripping both the high-voltage and low-voltage side circuit
breakers through Master Trip 1 and 2. The TRBU operate output signal is
connected to the output PO2 (X100: 8-9). LED 6 is used for backup (TRBU)
operate indication.
GUID-3AEB5B1A-9FE5-40E3-A199-F976B4127C87 V1 EN
RET615 117
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The arc protection offers individual function blocks for three arc sensors that can
be connected to the IED. Each arc protection function block has two different
operation modes, with or without the phase and residual current check. Operate
signals from the arc protection function blocks are connected to the Master Trip
and also to the alarm LED 10 as a common operate indication.
GUID-8A18CD3E-F811-4A8A-B01B-BC38004F1891 V1 EN
All start and operate signals from the protection stages are routed to trigger the
disturbance recorder or alternatively only to be recorded by the disturbance
recorder depending on the parameter settings. Additionally, the ARC protection
signals and the four binary inputs from X110 are also connected.
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GUID-2D158BA9-0D4F-4389-8D6A-FE415C4EDD91 V1 EN
Two separate trip circuit supervision functions are included, TCSSCBR1 for PO3
(X100:15-19) and TCSSCBR2 for PO4 (X100:20-24). Both functions are blocked
by the Master Trip (TRPPTRC1 and TRPPTRC2) and the circuit breaker open
signal. The TCS alarm indication is connected to LED 9.
GUID-5495E5E0-2282-4370-A0BA-D8B4649B9E22 V2 EN
RET615 119
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GUID-EC39937B-DB3E-4F77-A4FA-6949E5EF777A V1 EN
The operate signals from the protections are connected to the two trip output
contacts PO3 (X100:15-19) and PO4 (X100:20-24) via the corresponding Master
Trips TRPPTRC1 and TRPPTRC2. Open control commands to the circuit breaker
from local or remote CBXCBR1-exe_op are connected directly to the output PO3
(X100:15-19).
TRPPTRC1 and 2 provide the lockout/latching function, event generation and the
trip signal duration setting. If the lockout operation mode is selected, one binary
input can be reassigned to the RST_LKOUT input of the Master Trip to enable
external reset with a push button.
The external trip indication is connected also to the alarm LED 11.
120 RET615
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GUID-D85EB0CA-9C9F-4847-ABB7-3CA9C740EC80 V2 EN
There are two types of disconnector and earthing switch blocks available.
DCSXSWI1...3 and ESSXSWI1...2 are status only type, and DCXSWI1...2 and
ESXSWI1 are controllable type. By default, the status only blocks are connected in
standard configuration logic. If controllable operation is preferred, the controllable
type of disconnector and earthing switch blocks can be used instead of the status
only type. The connection and configuration of the control blocks can be done
using PCM600.
The binary inputs 5 and 6 of the additional card X110 are used for busbar
disconnector (DCSXSWI1) or circuit-breaker truck position indication.
The circuit breaker closing is enabled when the ENA_CLOSE input is activated.
The input can be activated by the configuration logic, which is a combination of
the disconnector position status and the statuses of the master trip logics and gas
pressure alarm and circuit-breaker spring charging. The OKPOS output from the
DCSXSWI block defines if the disconnector or the breaker truck is definitely either
RET615 121
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open (in test position) or close (in service position). This, together with non-active
trip signal and non-active gas pressure alarm, activates the close-enable signal to
the circuit-breaker control function block. The open operation is always enabled.
The ITL_BYPASS input can be used, for example, to always enable the closing of
the circuit breaker when the circuit breaker truck is in the test position, despite of
the interlocking conditions being active when the circuit breaker truck is closed in
service position.
The circuit breaker condition monitoring function (SSCBR) supervises the circuit
breaker status based on the binary input information connected and measured
current levels. The function introduces various supervision methods. The
corresponding supervision alarm signals are routed to LED 9.
122 RET615
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GUID-3FBEA8E7-F72F-43CD-B4E5-68582DAC6B7E V2 EN
The signal outputs from the IED are connected to give dedicated information on:
RET615 123
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TPGAPC are timers and used for setting the minimum pulse length for the outputs.
There are four generic timers (TPGAPC1..4) available in the IED. The remaining
ones not described in the functional diagram are available in PCM600 for
connection where applicable.
3.9.1 Applications
The IED with a standard configuration is delivered from the factory with default
settings and parameters. The end-user flexibility for incoming, outgoing and
internal signal designation within the IED enables this configuration to be further
adapted to different primary circuit layouts and the related functionality needs by
modifying the internal functionality using PCM600.
3.9.2 Functions
Table 45: Functions included in the standard configuration F
Function IEC 61850 IEC 60617 IEC-ANSI
Protection
Three-phase non-directional overcurrent
PHLPTOC1 3I> (1) 51P-1 (1)
protection, low stage, instance 1
Three-phase non-directional overcurrent
PHLPTOC2 3I> (2) 51P-1 (2)
protection, low stage, instance 2
Three-phase non-directional overcurrent
PHHPTOC1 3I>> (1) 51P-2 (1)
protection, high stage, instance 1
Three-phase non-directional overcurrent
PHHPTOC2 3I>> (2) 51P-2 (2)
protection, high stage, instance 2
Three-phase non-directional overcurrent
PHIPTOC1 3I>>> (1) 50P/51P (1)
protection, instantaneous stage, instance 1
Three-phase non-directional overcurrent
PHIPTOC2 3I>>> (2) 50P/51P (2)
protection, instantaneous stage, instance 2
Table continues on next page
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RET615 125
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126 RET615
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RET615 127
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Additionally, all the digital inputs that are connected by default are also enabled
with the setting. Default triggering settings are selected depending on the
connected input signal type. Typically all protection START signals are selected to
trigger the disturbance recorded by default.
The functional diagrams describe the default input, output, alarm LED and function-
to-function connections. The default connections can be viewed and changed with
PCM600 according to the application requirements, if necessary.
The analog channels have fixed connections towards the different function blocks
inside the IED’s standard configuration. Exceptions from this rule are the 12
analog channels available for the disturbance recorder function. These channels are
freely selectable and a part of the disturbance recorder’s parameter settings.
The analog channels are assigned to different functions. The common signals
marked with 3I and 3U represent the three phase currents and voltages of the high-
voltage side of the transformer respectively, and 3IB represents the three phase
currents of the low-voltage side of the transformer. The signal marked with IoB
represents the neutral current measured between the start point of the transformer
and grounding on the low voltage side. The signal marked with Uo represents the
measured residual voltage via open-delta connected voltage transformers on the
high voltage side.
The functional diagrams describe the IED’s protection functionality in detail and
picture the factory set default connections.
128 RET615
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GUID-049BD680-D526-4585-9682-7A11A034434A V2 EN
For transformers having an on-line tap changer, the tap position information is
recommended to be used in differential protection, as the ratio difference of tap
changer movements can be corrected in TR2PTDF.
RET615 129
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All operate signals are connected to the Master Trip 1 and 2 and also to the alarm
LEDs. LED 1 is used for biased low-stage operate indication and LED 2 for
instantaneous high-stage of the differential protection.
GUID-41BDB2C0-0742-4475-8348-A0B65198AAD7 V2 EN
130 RET615
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Three stages for both high-voltage and low-voltage sides as a total of six
overcurrent stages are offered for overcurrent and short-circuit protection. The high-
voltage side high stage (PHHPTOC1) can be blocked by energizing the binary
input 1 (X110:1-2) or by starting the high stage of the low-voltage side
(PHHPTOC2). Also the low-voltage side instantaneous stage is blocked by
activating the binary input (X110_BI1).
The operate of the overcurrent protection functions is connected to the output SO1
(X110:14-15-16). This output is used for giving a specific alarm of the overcurrent
protection operation.
GUID-D2C7FF7C-75CF-40CA-85A4-D59967FD7E85 V1 EN
Two stages are offered for non-directional earth-fault protection. The earth-fault
protection measures the neutral current of the low-voltage side.
All operate signals are connected to the Master Trip as well as to the alarm LEDs.
LED 3 is used for non-directional earth-fault protection operate indication.
GUID-3EC397CB-3B6C-4F34-88B2-184F75F355AD V1 EN
RET615 131
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GUID-6CADBBD9-E389-48FA-B63E-DCE207E3AC11 V1 EN
GUID-4A274797-A978-427C-A646-19421DB3AC6A V2 EN
132 RET615
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GUID-B1AE475D-8F14-4510-B9EC-D84AA7EC66E6 V1 EN
GUID-6D0DF1EB-1B51-40A1-A973-E53F30969D4A V2 EN
RET615 133
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GUID-704C8BBA-751D-443F-91FF-0508874DA792 V1 EN
The circuit-breaker failure protection (CCBRBRF1) is initiated via the start input
by a number of different protection stages in the IED. CCBRBRF1 offers different
operating modes associated with the circuit-breaker position and the measured
phase and residual currents.
CCBRBRF1 has two operating outputs: TRRET and TRBU. The TRRET operate
output is used for retripping both the high-voltage and low-voltage side circuit
breakers through Master Trip 1 and 2. The TRBU operate output signal is
connected to the output PO2 (X100: 8-9). LED 6 is used for backup (TRBU)
operate indication.
GUID-941081CB-1566-42DA-83EA-06B53C531D88 V1 EN
134 RET615
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The arc protection offers individual function blocks for three arc sensors that can
be connected to the IED. Each arc protection function block has two different
operation modes, with or without the phase and residual current check. Operate
signals from the arc protection function blocks are connected to the Master Trip
and also to the alarm LED 10 as a common operate indication.
GUID-6A46C2D2-1109-4E77-99AE-D47F6BB4B375 V1 EN
All start and operate signals from the protection stages are routed to trigger the
disturbance recorder or alternatively only to be recorded by the disturbance
recorder depending on the parameter settings. Additionally, the ARC protection
signals and the four binary inputs from X110 are also connected.
RET615 135
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GUID-3F90CE14-EF57-48E1-81F0-85F37C06B26B V1 EN
Two separate trip circuit supervision functions are included, TCSSCBR1 for PO3
(X100:15-19) and TCSSCBR2 for PO4 (X100:20-24). Both functions are blocked
by the Master Trip (TRPPTRC1 and TRPPTRC2) and the circuit breaker open
signal. The TCS alarm indication is connected to LED 9.
GUID-9A8E1D37-4EE6-489B-B930-1DE6BB24978B V2 EN
136 RET615
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GUID-A3B7EF01-A345-4D54-8BA0-7E370EE20E2B V1 EN
The operate signals from the protections are connected to the two trip output
contacts PO3 (X100:15-19) and PO4 (X100:20-24) via the corresponding Master
Trips TRPPTRC1 and TRPPTRC2. Open control commands to the circuit breaker
from local or remote CBXCBR1-exe_op are connected directly to the output PO3
(X100:15-19).
TRPPTRC1 and 2 provide the lockout/latching function, event generation and the
trip signal duration setting. If the lockout operation mode is selected, one binary
input can be reassigned to the RST_LKOUT input of the Master Trip to enable
external reset with a push button.
The external trip indication is connected also to the alarm LED 11.
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GUID-D53DC028-0381-4E85-BCCC-08B0E168B6D2 V2 EN
There are two types of disconnector and earthing switch blocks available.
DCSXSWI1...3 and ESSXSWI1...2 are status only type, and DCXSWI1...2 and
ESXSWI1 are controllable type. By default, the status only blocks are connected in
standard configuration logic. If controllable operation is preferred, the controllable
type of disconnector and earthing switch blocks can be used instead of the status
only type. The connection and configuration of the control blocks can be done
using PCM600.
The binary inputs 5 and 6 of the additional card X110 are used for busbar
disconnector (DCSXSWI1) or circuit-breaker truck position indication.
The circuit breaker closing is enabled when the ENA_CLOSE input is activated.
The input can be activated by the configuration logic, which is a combination of
the disconnector position status and the statuses of the master trip logics and gas
pressure alarm and circuit-breaker spring charging. The OKPOS output from the
DCSXSWI block defines if the disconnector or the breaker truck is definitely either
138 RET615
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open (in test position) or close (in service position). This, together with non-active
trip signal and non-active gas pressure alarm, activates the close-enable signal to
the circuit-breaker control function block. The open operation is always enabled.
The ITL_BYPASS input can be used, for example, to always enable the closing of
the circuit breaker when the circuit breaker truck is in the test position, despite of
the interlocking conditions being active when the circuit breaker truck is closed in
service position.
The circuit breaker condition monitoring function (SSCBR) supervises the circuit
breaker status based on the binary input information connected and measured
current levels. The function introduces various supervision methods. The
corresponding supervision alarm signals are routed to LED 9.
RET615 139
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GUID-FA535501-759C-48BA-A909-76336E08EED8 V2 EN
The signal outputs from the IED are connected to give dedicated information on:
140 RET615
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TPGAPC are timers and used for setting the minimum pulse length for the outputs.
There are four generic timers (TPGAPC1..4) available in the IED. The remaining
ones not described in the functional diagram are available in PCM600 for
connection where applicable.
3.10.1 Applications
The IED with a standard configuration is delivered from the factory with default
settings and parameters. The end-user flexibility for incoming, outgoing and
internal signal designation within the IED enables this configuration to be further
adapted to different primary circuit layouts and the related functionality needs by
modifying the internal functionality using PCM600.
3.10.2 Functions
Table 51: Functions included in the standard configuration G
Function IEC 61850 IEC 60617 IEC-ANSI
Protection
Three-phase non-directional overcurrent
PHLPTOC1 3I> (1) 51P-1 (1)
protection, low stage, instance 1
Three-phase non-directional overcurrent
PHLPTOC2 3I> (2) 51P-1 (2)
protection, low stage, instance 2
Three-phase non-directional overcurrent
PHHPTOC1 3I>> (1) 51P-2 (1)
protection, high stage, instance 1
Three-phase non-directional overcurrent
PHHPTOC2 3I>> (2) 51P-2 (2)
protection, high stage, instance 2
Three-phase non-directional overcurrent
PHIPTOC1 3I>>> (1) 50P/51P (1)
protection, instantaneous stage, instance 1
Three-phase non-directional overcurrent
PHIPTOC2 3I>>> (2) 50P/51P (2)
protection, instantaneous stage, instance 2
Non-directional earth-fault protection, low
EFLPTOC1 Io> (1) 51N-1 (1)
stage, instance 1
Table continues on next page
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142 RET615
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RET615 143
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Additionally, all the digital inputs that are connected by default are also enabled
with the setting. Default triggering settings are selected depending on the
144 RET615
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connected input signal type. Typically all protection START signals are selected to
trigger the disturbance recorded by default.
The analog channels have fixed connections towards the different function blocks
inside the IED’s standard configuration. Exceptions from this rule are the 12
analog channels available for the disturbance recorder function. These channels are
freely selectable and a part of the disturbance recorder’s parameter settings.
The analog channels are assigned to different functions. The common signals
marked with 3I and 3U represent the three phase currents and voltages of the high-
voltage side of the transformer respectively, and 3IB represents the three phase
currents of the low-voltage side of the transformer. The signal marked with Io
represents the measured neutral current measured between the start point of the
transformer and grounding on the high voltage side. The signal marked with Uo
represents the measured residual voltage via open-delta connected voltage
transformers on the high voltage side.
The functional diagrams describe the IED’s protection functionality in detail and
picture the factory set default connections.
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GUID-56FA9AE4-C0DC-4E61-9BA2-D01B4DE65687 V2 EN
For transformers having an on-line tap changer, the tap position information is
recommended to be used in differential protection, as the ratio difference of tap
changer movements can be corrected in TR2PTDF.
146 RET615
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All operate signals are connected to the Master Trip 1 and 2 and also to the alarm
LEDs. LED 1 is used for biased low-stage operate indication and LED 2 for
instantaneous high-stage of the differential protection.
GUID-D8FD1F06-95D6-427E-9975-B41130865CFF V2 EN
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Three stages for both high-voltage and low-voltage sides as a total of six
overcurrent stages are offered for overcurrent and short-circuit protection. The high-
voltage side high stage (PHHPTOC1) can be blocked by energizing the binary
input 1 (X110:1-2) or by starting the high stage of the low-voltage side
(PHHPTOC2). Also the low-voltage side instantaneous stage is blocked by
activating the binary input (X110_BI1).
The operate of the overcurrent protection functions is connected to the output SO1
(X110:14-15-16). This output is used for giving a specific alarm of the overcurrent
protection operation.
GUID-B2CBE815-01C2-4856-8BC1-426815374D99 V1 EN
Two stages are offered for non-directional earth-fault protection. The earth-fault
protection measures the neutral current of the low-voltage side.
All operate signals are connected to the Master Trip as well as to the alarm LEDs.
LED 3 is used for non-directional earth-fault protection operate indication.
GUID-E2C14CE9-1974-4C13-8AE2-7A062ADF68A0 V1 EN
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occurring in the protected area, that is, in the area between the phase and neutral
current transformers. An earth fault in this area appears as a differential current
between the residual current of the phase currents and the neutral current of the
conductor between the star-point of the transformer and earth.
GUID-AAA89F5C-737E-460E-8B01-A45F56A945C7 V1 EN
GUID-CA2DCDB9-3DFA-4CAE-BE98-5EA5923BDB0D V2 EN
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GUID-8C4ECD1A-D84A-4B87-BAE8-54A1686E161E V1 EN
GUID-724B9856-A0F8-4711-AD17-B458C4265512 V2 EN
150 RET615
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The circuit-breaker failure protection (CCBRBRF1) is initiated via the start input
by a number of different protection stages in the IED. CCBRBRF1 offers different
operating modes associated with the circuit-breaker position and the measured
phase and residual currents.
CCBRBRF1 has two operating outputs: TRRET and TRBU. The TRRET operate
output is used for retripping both the high-voltage and low-voltage side circuit
breakers through Master Trip 1 and 2. The TRBU operate output signal is
connected to the output PO2 (X100: 8-9). LED 6 is used for backup (TRBU)
operate indication.
GUID-17B182C7-7A27-4F4D-BB00-6980945E453E V1 EN
The arc protection offers individual function blocks for three arc sensors that can
be connected to the IED. Each arc protection function block has two different
operation modes, with or without the phase and residual current check. Operate
signals from the arc protection function blocks are connected to the Master Trip
and also to the alarm LED 10 as a common operate indication.
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3.10.3.2 Functional diagram for disturbance recorder and trip circuit supervision
GUID-D068A0A3-49B4-4D02-95D1-3DF5F46EAB74 V1 EN
All start and operate signals from the protection stages are routed to trigger the
disturbance recorder or alternatively only to be recorded by the disturbance
recorder depending on the parameter settings. Additionally, the ARC protection
signals and the four binary inputs from X110 are also connected.
GUID-696685EC-212D-4526-825C-91DCCF4A7134 V1 EN
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Two separate trip circuit supervision functions are included, TCSSCBR1 for PO3
(X100:15-19) and TCSSCBR2 for PO4 (X100:20-24). Both functions are blocked
by the Master Trip (TRPPTRC1 and TRPPTRC2) and the circuit breaker open
signal. The TCS alarm indication is connected to LED 9.
GUID-0A88DBE8-B765-4A96-8BBB-BD824159B0AF V2 EN
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GUID-1EC3ED90-6920-4B83-B947-B4DFDFC83D59 V1 EN
The operate signals from the protections are connected to the two trip output
contacts PO3 (X100:15-19) and PO4 (X100:20-24) via the corresponding Master
Trips TRPPTRC1 and TRPPTRC2. Open control commands to the circuit breaker
from local or remote CBXCBR1-exe_op are connected directly to the output PO3
(X100:15-19).
TRPPTRC1 and 2 provide the lockout/latching function, event generation and the
trip signal duration setting. If the lockout operation mode is selected, one binary
input can be reassigned to the RST_LKOUT input of the Master Trip to enable
external reset with a push button.
The external trip indication is connected also to the alarm LED 11.
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GUID-42E5CCDE-2D8E-4E27-83C9-65C3707B10AC V2 EN
There are two types of disconnector and earthing switch blocks available.
DCSXSWI1...3 and ESSXSWI1...2 are status only type, and DCXSWI1...2 and
ESXSWI1 are controllable type. By default, the status only blocks are connected in
standard configuration logic. If controllable operation is preferred, the controllable
type of disconnector and earthing switch blocks can be used instead of the status
only type. The connection and configuration of the control blocks can be done
using PCM600.
The binary inputs 5 and 6 of the additional card X110 are used for busbar
disconnector (DCSXSWI1) or circuit-breaker truck position indication.
The circuit breaker closing is enabled when the ENA_CLOSE input is activated.
The input can be activated by the configuration logic, which is a combination of
the disconnector position status and the statuses of the master trip logics and gas
pressure alarm and circuit-breaker spring charging. The OKPOS output from the
DCSXSWI block defines if the disconnector or the breaker truck is definitely either
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open (in test position) or close (in service position). This, together with non-active
trip signal and non-active gas pressure alarm, activates the close-enable signal to
the circuit-breaker control function block. The open operation is always enabled.
The ITL_BYPASS input can be used, for example, to always enable the closing of
the circuit breaker when the circuit breaker truck is in the test position, despite of
the interlocking conditions being active when the circuit breaker truck is closed in
service position.
The circuit breaker condition monitoring function (SSCBR) supervises the circuit
breaker status based on the binary input information connected and measured
current levels. The function introduces various supervision methods. The
corresponding supervision alarm signals are routed to LED 9.
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GUID-8C2D5158-3D5A-4E47-9909-25903815F026 V2 EN
The signal outputs from the IED are connected to give dedicated information on:
RET615 157
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TPGAPC are timers and used for setting the minimum pulse length for the outputs.
There are four generic timers (TPGAPC1..4) available in the IED. The remaining
ones not described in the functional diagram are available in PCM600 for
connection where applicable.
3.11.1 Applications
The IED with a standard configuration is delivered from the factory with default
settings and parameters. The end-user flexibility for incoming, outgoing and
internal signal designation within the IED enables this configuration to be further
adapted to different primary circuit layouts and the related functionality needs by
modifying the internal functionality using PCM600.
3.11.2 Functions
Table 57: Functions included in the standard configuration H
Function IEC 61850 IEC 60617 IEC-ANSI
Protection
Three-phase non-directional overcurrent
PHLPTOC1 3I> (1) 51P-1 (1)
protection, low stage, instance 1
Three-phase non-directional overcurrent
PHLPTOC2 3I> (2) 51P-1 (2)
protection, low stage, instance 2
Three-phase non-directional overcurrent
PHHPTOC1 3I>> (1) 51P-2 (1)
protection, high stage, instance 1
Three-phase non-directional overcurrent
PHHPTOC2 3I>> (2) 51P-2 (2)
protection, high stage, instance 2
Three-phase non-directional overcurrent
PHIPTOC1 3I>>> (1) 50P/51P (1)
protection, instantaneous stage, instance 1
Three-phase non-directional overcurrent
PHIPTOC2 3I>>> (2) 50P/51P (2)
protection, instantaneous stage, instance 2
Table continues on next page
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RET615 159
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160 RET615
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RET615 161
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Additionally, all the digital inputs that are connected by default are also enabled
with the setting. Default triggering settings are selected depending on the
connected input signal type. Typically all protection START signals are selected to
trigger the disturbance recorded by default.
The functional diagrams describe the default input, output, alarm LED and function-
to-function connections. The default connections can be viewed and changed with
PCM600 according to the application requirements, if necessary.
The analog channels have fixed connections towards the different function blocks
inside the IED’s standard configuration. Exceptions from this rule are the 12
analog channels available for the disturbance recorder function. These channels are
freely selectable and a part of the disturbance recorder’s parameter settings.
The analog channels are assigned to different functions. The common signal
marked with 3I represents the three phase currents of the high-voltage side of the
transformer and 3IB represents the three phase currents of the low-voltage side of
the transformer. The signal marked with IoB represents the neutral current
measured between the start point of the transformer and grounding on the low
voltage side. The signal marked with Uo represents the measured residual voltage
via open-delta connected voltage transformers on the high voltage side.
The functional diagrams describe the IED’s protection functionality in detail and
picture the factory set default connections.
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GUID-1603E90A-FED5-4063-9307-8D4F62D42921 V2 EN
For transformers having an on-line tap changer, the tap position information is
recommended to be used in differential protection, as the ratio difference of tap
changer movements can be corrected in TR2PTDF.
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All operate signals are connected to the Master Trip 1 and 2 and also to the alarm
LEDs. LED 1 is used for biased low-stage operate indication and LED 2 for
instantaneous high-stage of the differential protection.
GUID-9FF363C0-C581-47D7-9218-36121D6B5285 V2 EN
164 RET615
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Three stages for both high-voltage and low-voltage sides as a total of six
overcurrent stages are offered for overcurrent and short-circuit protection. The high-
voltage side high stage (PHHPTOC1) can be blocked by energizing the binary
input 1 (X110:1-2) or by starting the high stage of the low-voltage side
(PHHPTOC2). Also the low-voltage side instantaneous stage is blocked by
activating the binary input (X110_BI1).
The operate of the overcurrent protection functions is connected to the output SO1
(X110:14-15-16). This output is used for giving a specific alarm of the overcurrent
protection operation.
GUID-0030A115-1F44-480C-9D60-7DC6DC91D081 V1 EN
Two stages are offered for non-directional earth-fault protection. The earth-fault
protection measures the neutral current of the low-voltage side.
All operate signals are connected to the Master Trip as well as to the alarm LEDs.
LED 3 is used for non-directional earth-fault protection operate indication.
GUID-9D9E76F8-547A-4D73-930F-D2DB10081970 V1 EN
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between the residual current of the phase currents and the neutral current of the
conductor between the star-point of the transformer and earth.
GUID-6EF3B245-3E4E-4D0B-8F72-384C074F85CE V1 EN
GUID-FB2F2B5B-9009-4903-8A73-6225E8DF03DE V2 EN
166 RET615
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GUID-DFAAC066-D9D5-4188-B371-1A2DE2CACF4B V1 EN
GUID-3A11CB90-5E73-488A-8D9B-362487AE218B V2 EN
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GUID-98E5309A-F88B-4BDB-9EFA-DF9D1E2C8A7C V1 EN
The circuit-breaker failure protection (CCBRBRF1) is initiated via the start input
by a number of different protection stages in the IED. CCBRBRF1 offers different
operating modes associated with the circuit-breaker position and the measured
phase and residual currents.
CCBRBRF1 has two operating outputs: TRRET and TRBU. The TRRET operate
output is used for retripping both the high-voltage and low-voltage side circuit
breakers through Master Trip 1 and 2. The TRBU operate output signal is
connected to the output PO2 (X100: 8-9). LED 6 is used for backup (TRBU)
operate indication.
GUID-D3FFC16D-D97F-4EB5-B851-677E2E41CE9E V1 EN
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The arc protection offers individual function blocks for three arc sensors that can
be connected to the IED. Each arc protection function block has two different
operation modes, with or without the phase and residual current check. Operate
signals from the arc protection function blocks are connected to the Master Trip
and also to the alarm LED 10 as a common operate indication.
GUID-A788BFC0-0EBA-4451-AC0B-6D56B37ADEB4 V1 EN
All start and operate signals from the protection stages are routed to trigger the
disturbance recorder or alternatively only to be recorded by the disturbance
recorder depending on the parameter settings. Additionally, the ARC protection
signals and the four binary inputs from X110 are also connected.
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GUID-29073B9E-44C7-4622-AB1E-6ECBBF6FAF0F V1 EN
Two separate trip circuit supervision functions are included, TCSSCBR1 for PO3
(X100:15-19) and TCSSCBR2 for PO4 (X100:20-24). Both functions are blocked
by the Master Trip (TRPPTRC1 and TRPPTRC2) and the circuit breaker open
signal. The TCS alarm indication is connected to LED 9.
GUID-F6B3D3D0-6A64-4852-8533-6491AC0D8DB5 V2 EN
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GUID-B306F9D8-14BC-42A3-9C3D-2190AB0468FB V1 EN
The operate signals from the protections are connected to the two trip output
contacts PO3 (X100:15-19) and PO4 (X100:20-24) via the corresponding Master
Trips TRPPTRC1 and TRPPTRC2. Open control commands to the circuit breaker
from local or remote CBXCBR1-exe_op are connected directly to the output PO3
(X100:15-19).
TRPPTRC1 and 2 provide the lockout/latching function, event generation and the
trip signal duration setting. If the lockout operation mode is selected, one binary
input can be reassigned to the RST_LKOUT input of the Master Trip to enable
external reset with a push button.
The external trip indication is connected also to the alarm LED 11.
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GUID-8335EE7E-3951-434C-8B1D-D19DD3FEF1C6 V2 EN
There are two types of disconnector and earthing switch blocks available.
DCSXSWI1...3 and ESSXSWI1...2 are status only type, and DCXSWI1...2 and
ESXSWI1 are controllable type. By default, the status only blocks are connected in
standard configuration logic. If controllable operation is preferred, the controllable
type of disconnector and earthing switch blocks can be used instead of the status
only type. The connection and configuration of the control blocks can be done
using PCM600.
The binary inputs 5 and 6 of the additional card X110 are used for busbar
disconnector (DCSXSWI1) or circuit-breaker truck position indication.
The circuit breaker closing is enabled when the ENA_CLOSE input is activated.
The input can be activated by the configuration logic, which is a combination of
the disconnector position status and the statuses of the master trip logics and gas
pressure alarm and circuit-breaker spring charging. The OKPOS output from the
DCSXSWI block defines if the disconnector or the breaker truck is definitely either
172 RET615
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open (in test position) or close (in service position). This, together with non-active
trip signal and non-active gas pressure alarm, activates the close-enable signal to
the circuit-breaker control function block. The open operation is always enabled.
The ITL_BYPASS input can be used, for example, to always enable the closing of
the circuit breaker when the circuit breaker truck is in the test position, despite of
the interlocking conditions being active when the circuit breaker truck is closed in
service position.
The circuit breaker condition monitoring function (SSCBR) supervises the circuit
breaker status based on the binary input information connected and measured
current levels. The function introduces various supervision methods. The
corresponding supervision alarm signals are routed to LED 9.
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GUID-81A0A8A4-B3F6-4571-AE68-1B5B24260E95 V2 EN
The signal outputs from the IED are connected to give dedicated information on:
174 RET615
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TPGAPC are timers and used for setting the minimum pulse length for the outputs.
There are four generic timers (TPGAPC1..4) available in the IED. The remaining
ones not described in the functional diagram are available in PCM600 for
connection where applicable.
3.12.1 Applications
The IED with a standard configuration is delivered from the factory with default
settings and parameters. The end-user flexibility for incoming, outgoing and
internal signal designation within the IED enables this configuration to be further
adapted to different primary circuit layouts and the related functionality needs by
modifying the internal functionality using PCM600.
3.12.2 Functions
RET615 175
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176 RET615
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RET615 177
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Additionally, all the digital inputs that are connected by default are also enabled
with the setting. Default triggering settings are selected depending on the
connected input signal type. Typically all protection START signals are selected to
trigger the disturbance recorded by default.
The functional diagrams describe the default input, output, alarm LED and function-
to-function connections. The default connections can be viewed and changed with
PCM600 according to the application requirements, if necessary.
The analog channels have fixed connections towards the different function blocks
inside the IED’s standard configuration. Exceptions from this rule are the 12
analog channels available for the disturbance recorder function. These channels are
freely selectable and a part of the disturbance recorder’s parameter settings.
The analog channels are assigned to different functions as shown in the functional
diagrams. The common signal marked with 3I_A represents the three phase
currents of the high-voltage side of the transformer and 3I_B represents the three
phase currents of the low-voltage side of the transformer. The signal marked with
Io_difA represents the dedicated differential neutral current measured between the
start point of the transformer and grounding on the high-voltage side, and Io_difB
represents the current on the low-voltage side.
The functional diagrams describe the IED’s protection functionality in detail and
picture the factory set default connections.
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GUID-86C475D1-77C5-4483-8B3E-EE1AC79E347D V1 EN
RET615 179
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GUID-F2337257-97CE-491D-9A1D-C8879763324A V1 EN
For transformers having an on-line tap changer, the tap position information is
recommended to be used in differential protection, as the ratio difference of tap
changer movements can be corrected in TR2PTDF.
All operate signals are connected to the Master Trip 1 and 2 and also to the alarm
LEDs. LED 1 is used for biased low-stage operate indication and LED 2 for
instantaneous high-stage of the differential protection.
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RESTRICTED EARTH-FAULT
HREFPDIF(1)
I0 Hi>
87NH
I0_difA I0 START REF_START
(I0_difB)
BLOCK OPERATE REF_OPERATE
LED3
GUID-A4AF8DDC-F04C-4AEE-A2BD-F387065357BF V1 EN
The earth-fault current stage operates exclusively on earth faults occurring in the
protected area, that is, in the area between the phase and neutral current
transformers. An earth fault in this area appears as a differential current between
the residual current of the phase currents and the neutral current of the conductor
between the star-point of the transformer and earth.
GUID-E8BAFEE3-2965-432A-A1C5-1FDDDC54C4FD V1 EN
The circuit-breaker failure protection (CCBRBRF1) is initiated via the start input
by a number of different protection stages in the IED. CCBRBRF1 offers different
operating modes associated with the circuit-breaker position and the measured
phase and residual currents. CCBRBRF1 has two operating outputs: TRRET and
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TRBU. The TRRET operate output is used for retripping both the high-voltage and
low-voltage side circuit breakers through Master Trip 1 and 2. The TRBU operate
output signal is connected to the output PO2 (X100: 8-9). LED 6 is used for backup
(TRBU) operate indication.
GUID-2F782865-C844-474E-ABF6-B6842E8E780D V1 EN
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GUID-CBC72B54-EA6E-495A-B669-286ED9C88ED2 V1 EN
The disturbance recorder has 64 digital inputs out of which 19 are connected as a
default. All start and operate signals from the protection stages are routed to trigger
the disturbance recorder or alternatively only to be recorded by the disturbance
recorder depending on the parameter settings. Additionally, the arc protection
signals and seven binary inputs from X110 are also connected.
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GUID-0DF909DC-BD57-45F9-8542-CDB931202409 V1 EN
Two separate trip circuit supervision functions are included, TCSSCBR1 for PO3
(X100:15-19) and TCSSCBR2 for PO4 (X100:20-24). TCSSCBR1 is blocked
when high-voltage side circuit breaker is not closed and also blocked by Master
trip 1 (TRPPTRC1). TCSSCBR2 is blocked when low-voltage side circuit breaker
is not closed and also blocked by Master trip 2 (TRPPTRC2). The TCS alarm
indication is connected to LED 9.
MVGAPC1
I1 Q1 MVGAPC1 Q1
I2 Q2 MVGAPC1 Q 2
I3 Q3 MVGAPC1 Q 3
I4 Q4 MVGAPC1 Q 4
GUID-167B5ADF-B97A-4A39-A055-334C03B62A32 V1 EN
184 RET615
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The operate signals from the protections are connected to the two trip output
contacts PO3 (X100:15-19) and PO4 (X100:20-24) via the corresponding Master
Trips TRPPTRC1 and TRPPTRC2. Open control commands to the circuit breaker
from local or remote CBXCBR1-exe_op are connected directly to the output PO3
(X100:15-19).
TRPPTRC1 and 2 provide the lockout/latching function, event generation and the
trip signal duration setting. If the lockout operation mode is selected, one binary
input can be reassigned to the RST_LKOUT input of the Master Trip to enable
external reset with a push button.
The external protection trip and alarm signals for non-electrical protection are also
connected to LED 4, LED 5, LED 10 and LED 11.
GUID-6D44365E-82E7-40B8-B098-CB80F7E4B220 V1 EN
There are three disconnector status blocks (DCSXSWI1…3) available in the IED.
They are available in PCM600 for connection where applicable.
The circuit breaker closing is enabled when the ENA_CLOSE input is activated.
The input can be activated by the configuration logic, which is a combination of
the statuses of the master trip logic and circuit-breaker spring charging. The open
operation is always enabled.
The ITL_BYPASS input can be used, for example, to always enable the closing of
the circuit breaker when the circuit breaker truck is in the test position, despite of
the interlocking conditions being active when the circuit breaker truck is closed in
service position.
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The circuit breaker condition monitoring function (SSCBR) supervises the circuit
breaker status based on the binary input information connected and measured
current levels. The function introduces various supervision methods. The
corresponding supervision alarm signals are routed to LED 8.
MVGAPC1 Q1
MVGAPC1 Q 2
MVGAPC1 Q 3
MVGAPC1 Q 4
GUID-0A5EAAE3-FA87-4FCB-814C-7586BC05DC10 V1 EN
The signal outputs from the IED are connected to give dedicated information on:
186 RET615
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TPGAPC are timers and used for setting the minimum pulse length for the outputs.
There are four generic timers (TPGAPC1..4) available in the IED. The remaining
ones not described in the functional diagram are available in PCM600 for
connection where applicable.
GUID-43684E97-B173-4BBB-B7F4-219AA9A2E8B4 V1 EN
To increase the sensitivity of the stabilized differential function, the tap position
information from the tap changer is connected to the IED via the tap changer
position indication function TPOSSLTC1. TPOSSLTC1 is connected to the binary
inputs of the X130 BIO card or alternatively to the mA input of the RTD card.
TPOSSLTC1 uses binary-coded methods to generate the integer value of the tap
changer position.
3.13.1 Applications
The IED with a standard configuration is delivered from the factory with default
settings and parameters. The end-user flexibility for incoming, outgoing and
internal signal designation within the IED enables this configuration to be further
adapted to different primary circuit layouts and the related functionality needs by
modifying the internal functionality using PCM600.
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3.13.2 Functions
Table 68: Functions included in the standard configuration K
Functionality IEC 61850 IEC 60617 IEC-ANSI
Protection
Three-phase non-directional overcurrent PHLPTOC1 3I>(1) 51P-1(1)
protection, low stage (HV side)
Three-phase non-directional overcurrent PHLPTOC2 3I> (2) 51P-1(2)
protection, low stage (LV side)
Three-phase non-directional overcurrent PHHPTOC1 3I>>(1) 51P-2(1)
protection, high stage (HV side)
Three-phase non-directional overcurrent PHHPTOC2 3I>>(2) 51P-2(2)
protection, high stage (LV side)
Three-phase non-directional overcurrent PHIPTOC1 3I>>>(1) 50P/51P(1)
protection, instantaneous stage (HV side)
Three-phase non-directional overcurrent PHIPTOC2 3I>>>(2) 50P/51P(2)
protection, instantaneous stage (LV side)
Non-directional earth-fault protection, low EFLPTOC1 I0>(1) 51N-1(1)
stage (HV side)
Non-directional earth-fault protection, low EFLPTOC2 I0>(2) 51N-1(2)
stage, using calculated Io (LV side)
Non-directional earth-fault protection, high EFHPTOC1 I0>>(1) 51N-2(1)
stage (HV side)
Non-directional earth-fault protection, high EFHPTOC2 I0>>(2) 51N-2(2)
stage, using calculated Io (LV side)
Negative-sequence overcurrent NSPTOC1 I2>(1) 46(1)
protection, instance 1 (HV side)
Negative-sequence overcurrent NSPTOC2 I2>(2) 46(2)
protection, instance 2 (LV side)
Negative-sequence overcurrent NSPTOC3 I2>(3) 46(3)
protection, instance 3 (HV side)
Negative-sequence overcurrent NSPTOC4 I2>(4) 46(4)
protection, instance 4 (LV side)
Three phase over voltage protection, PHPTOV1 3U>(1) 59(1)
instance 1
Three phase over voltage protection, PHPTOV2 3U>(2) 59(2)
instance 2
Three phase under voltage protection, PHPTUV1 3U<(1) 27(1)
instance 1
Three phase under voltage protection, PHPTUV2 3U<(2) 27(2)
instance 2
Residual over voltage protection, instance ROVPTOV1 U0>(1) 59G(1)
1
Residual over voltage protection, instance ROVPTOV2 U0>(2) 59G(2)
2
Low impedance-based restricted earth- LREFPNDF1 dI0Lo> 87NL
fault
Three-phase thermal protection for power T2PTTR1 3Ith>T 49T
transformers, two time constants (HV side)
Table continues on next page
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190 RET615
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Additionally, all the digital inputs that are connected by default are also enabled
with the setting. Default triggering settings are selected depending on the
connected input signal type. Typically all protection START signals are selected to
trigger the disturbance recorded by default.
The functional diagrams describe the default input, output, alarm LED and function-
to-function connections. The default connections can be viewed and changed with
PCM600 according to the application requirements, if necessary.
The analog channels have fixed connections towards the different function blocks
inside the IED’s standard configuration. Exceptions from this rule are the 12
analog channels available for the disturbance recorder function. These channels are
freely selectable and a part of the disturbance recorder’s parameter settings.
The analog channels are assigned to different functions as shown in the functional
diagrams. The common signal marked with 3I_A represents the three phase
currents of the high-voltage side of the transformer and 3I_B represents the three
phase currents of the low-voltage side of the transformer. The signal marked with
Io_A represents the neutral current measured between the start point of the
transformer and grounding on the high-voltage side and Io_B represents the
calculated residual current of low-voltage side.
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The functional diagrams describe the IED’s protection functionality in detail and
picture the factory set default connections.
GUID-C4311413-47DB-4C34-99B2-5E16F18E6DD3 V1 EN
Three stages for both high-voltage and low-voltage sides as a total of six
overcurrent stages are offered for overcurrent and short-circuit protection.
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GUID-45FCFD7A-0916-47D4-9EB1-C3E99963439A V1 EN
Two stages for both high-voltage and low-voltage sides (as a total of four stages)
are offered for earth-fault protection.
The high-voltage side earth-fault protections measure the neutral current of the high-
voltage side, and the low-voltage side earth-fault protections are based on the
calculated residual current.
All operate signals are connected to the Master Trip and to the alarm LEDs. LED 3
is used for non-directional earth-fault protection operate indication.
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RESTRICTED EARTH_FAULT
LREFPNDF(1)
I0 L0>
87NL
3I_A 3I START REF_START
I0_A I0
OPERATE REF_OPERATE
BLOCK
LED1
GUID-D36B26FE-1DE8-4F3C-92EC-73D93D10C021 V1 EN
194 RET615
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GUID-41899556-D0E8-404B-8BFC-B569E30FCEE5 V1 EN
RET615 195
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PHPTOV1
3U> (1)
59(1)
3U START
BLOCK OPERATE
PHPTOV2
3U> (2)
59(2)
3U START
BLOCK OPERATE
PHPTUV1
3U< (1)
OR
27(1)
3U START LED10
(Voltage Protection Operate)
SEQRFUF_FUSEF_U BLOCK OPERATE
PHPTUV2
3U< (2)
27(2)
3U START
SEQRFUF_FUSEF_U BLOCK OPERATE
ROVPTOV1
U0> (1)
OR
59G(1) LED3
U0 START (EF Operate)
BLOCK OPERATE
ROVPTOV2
U0> (2)
59G(2)
U0 START
BLOCK OPERATE
GUID-077F070B-DB7B-4C22-992E-7EEB7AC91E4E V1 EN
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circuit is detected by the fuse failure function and the activation is connected to
undervoltage protection functions to avoid faulty undervoltage tripping.
GUID-AC33B856-5FF6-4C72-A281-0BF53AD0374E V1 EN
GUID-F48180D9-E410-4BED-B729-46D0BD7A7E2B V1 EN
The circuit-breaker failure protection (CCBRBRF1) is initiated via the start input
by a number of different protection stages in the IED. CCBRBRF1 offers different
operating modes associated with the circuit breaker position and the measured
phase and residual currents.
CCBRBRF1 has two operating outputs: TRRET and TRBU. The TRRET operate
output is used for retripping both the high-voltage and low-voltage side circuit
breakers through Master Trip 1 and 2. The TRBU operate output signal is
connected to the output PO2 (X100: 8-9). LED 6 is used for backup (TRBU)
operate indication.
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GUID-2229E3AF-85E6-41A8-A9B6-B29BBD9E36A5 V1 EN
198 RET615
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DISTURBANCE RECORDER
RDRE
PHLPTOC1_START C1 TRIGGERED LED7
PHHPTOC1_START C2
PHIPTOC1_START C3
PHLPTOC2_START C4
PHHPTOC2_START C5
PHIPTOC2_START C6
EFLPTOC1_START C7
EFHPTOC1_START C8
EFLPTOC2_START C9
EFHPTOC2_START C10
NSPTOC1_START C11
NSPTOC3_START C12
PHLPTOC1_OPERATE
PHHPTOC1_OPERATE OR NSPTOC2_START C13
PHIPTOC1_OPERATE NSPTOC4_START C14
REF_START C15
PHLPTOC2_OPERATE T2PTTR1_START C16
PHHPTOC2_OPERATE OR C17
CCBRBRF1_TRRET
PHIPTOC2_OPERATE CCBRBRF1_TRBU C18
C19
EFLPTOC1_OPERATE OR C20
EFHPTOC1_OPERATE
C21
EFLPTOC2_OPERATE OR C22
EFHPTOC2_OPERATE
C23
C24
NSPTOC1_OPERATE REF_OPERATE C25
OR T2PTTR1_ALARM C26
NSPTOC3_OPERATE
T2PTTR1_OPERATE C27
NSPTOC2_OPERATE
OR T2PTTR1_BLK_CLOSE C28
NSPTOC4_OPERATE
C29
ARCSARC1_ARC_FLT_DET
ARCSARC2_ARC_FLT_DET C30
OR X110_BI7(LV CB CLOSED) C31
ARCSARC3_ARC_FLT_DET X110_BI8(LV CB OPEN) C32
ARCSARC1_OPERATE X110_BI3(HV CB CLOSED) C33
ARCSARC2_OPERATE OR ROVPTOV1_START C34
ARCSARC3_OPERATE ROVPTOV2_START C35
PHPTOV1_START C36
PHPTOV2_START C37
PHPTUV1_START C38
PHPTUV2_START C39
ROVPTOV1_OPERATE OR C40
ROVPTOV2_OPERATE
C41
PHPTOV1_OPERATE C42
OR
PHPTOV2_OPERATE SEQRFUF1_FUSEF_3PH C43
PHPTUV1_OPERATE SEQRFUF1_FUSEF_U C44
OR
PHPTUV2_OPERATE MDSOPT_ALARM C45
C46
C47
C48
C49
C50
C51
C52
C53
C54
C55
C56
C57
C58
C59
C60
C61
C62
C63
C64
GUID-5186BB2A-AA2D-47D6-83A5-84C2139D91A7 V1 EN
The disturbance recorder has 64 digital inputs out of which 45 are connected as a
default. All start and operate signals from the protection stages are routed to trigger
the disturbance recorder or alternatively only to be recorded by the disturbance
recorder depending on the parameter settings. Additionally, the arc protection
signals and three binary inputs from X110 are also connected.
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SUPERVISION
TRPPTRC1_TRIP
X110_BI3
(HV CB Closed)
TRPPTRC2_TRIP
X110_BI7
(LV CB Closed)
X110_BI3
(HV CB Closed)
GUID-8B608345-E898-4AA8-BD1C-15E0F18518AA V1 EN
Two separate trip circuit supervision functions are included: TCSSCBR1 for PO3
(X100:15-19) and TCSSCBR2 for PO4 (X100:20-24). TCSSCBR1 is blocked
when high-voltage side circuit breaker is not closed. TCSSCBR1 is also blocked by
Master trip 1 (TRPPTRC1). TCSSCBR2 is blocked when low-voltage side circuit
breaker is not closed. TCSSCBR2 is also blocked by Master trip 2 (TRPPTRC2).
The TCS alarm indication is connected to LED 9.
The fuse failure supervision function SEQRFUF1 is used to block the voltage
measuring functions at failures in the secondary circuits between the voltage
transformer and the IED to avoid unwanted operations that might occur otherwise.
The fuse failure alarm of SEQRFUF1 is also connected to LED 9.
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REF_OPERATE
PHIPTOC1_OPERATE
PHHPTOC1_OPERATE
PHLPTOC1_OPERATE
EFHPTOC1_OPERATE
EFLPTOC1_OPERATE OR
NSPTOC1_OPERATE
TRPPTRC1_TRIP
NSPTOC3_OPERATE
X100
CCBRBRF1_TRRET RST_LKOUT +
With lock-out mode 16
ROVPTOV1_OPERATE Open HV
selection PO3
ROVPTOV2_OPERATE CB/
PHPTOV1_OPERATE 17
Trip coil 1
PHPTOV2_OPERATE 15
19
PHPTUV1_OPERATE TCS1 18
PHPTUV2_OPERATE
REF_OPERATE
PHIPTOC1_OPERATE MASTER TRIP 2(LV SIDE)
PHHPTOC1_OPERATE
PHLPTOC1_OPERATE
EFHPTOC1_OPERATE
EFLPTOC1_OPERATE
PHIPTOC2_OPERATE TRPPTRC2
PHHPTOC2_OPERATE BLOCK TRIP TRPPTRC2_TRIP X100
PHLPTOC2_OPERATE OR OPERATE CL_LKOUT
+
EFHPTOC2_OPERATE RST_LKOUT 20
EFLPTOC2_OPERATE
With lock-out mode
22
selection Open LV
NSPTOC1_OPERATE PO4
CB/
NSPTOC2_OPERATE 21 Trip coil 2
NSPTOC3_OPERATE OR 23
NSPTOC4_OPERATE 24
ARCSAC1_OPERATE TCS2
CBXCBR_EXE_OP
ARCSAC2_OPERATE
ARCSAC3_OPERATE
T2PTTR1_OPERATE
ROVPTOV1_OPERATE
ROVPTOV2_OPERATE
PHPTOV1_OPERATE
PHPTOV2_OPERATE
PHPTUV1_OPERATE
PHPTUV2_OPERATE
GUID-674D65F9-D71D-4C52-861E-891CD5AA7D29 V1 EN
The operate signals from the protections are connected to the two trip output
contacts PO3 (X100:15-19) and PO4 (X100:20-24) via the corresponding Master
Trips TRPPTRC1 and TRPPTRC2. Open control commands to the circuit breaker
from local or remote CBXCBR1-exe_op are connected directly to the output PO4
(X100:20-24).
TRPPTRC1 and 2 provide the lockout/latching function, event generation and the
trip signal duration setting. If the lockout operation mode is selected, one binary
input can be reassigned to the RST_LKOUT input of the Master Trip to enable
external reset with a push button.
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GUID-C3F3BDA2-5149-4A98-B0F9-106D98B7BD4C V1 EN
There are three disconnector status blocks (DCSXSWI1…3) available in the IED.
They are available in PCM600 for connection where applicable.
The circuit breaker closing is enabled when the ENA_CLOSE input is activated.
The input can be activated by the configuration logic, which is a combination of
the statuses of the master trip logic and circuit-breaker spring charging. The open
operation is always enabled.
The ITL_BYPASS input can be used, for example, to always enable the closing of
the circuit breaker when the circuit breaker truck is in the test position, despite of
the interlocking conditions being active when the circuit breaker truck is closed in
service position.
The circuit breaker condition monitoring function (SSCBR) supervises the circuit
breaker status based on the binary input information connected and measured
current levels. The function introduces various supervision methods. The
corresponding supervision alarm signals are routed to LED 8.
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PHIPTOC1_START
PHHPTOC1_START
PHLPTOC1_START
PHIPTOC2_START
PHHPTOC2_START
PHLPTOC2_START
EFHPTOC1_START
EFLPTOC1_START
EFHPTOC2_START
EFLPTOC2_START
NSPTOC1_START
NSPTOC3_START OR
NSPTOC2_START
NSPTOC4_START
REF_START
T2PTTR1_START
ROVPTOV1_START + X100
ROVPTOV2_START
PHPTOV1_START 10
Start
PHPTOV2_START SO1
Indication
PHPTUV1_START 11
PHPTUV2_START TPGAPC1 12
IN1 OUT1
+
PHIPTOC1_OPERATE IN2 OUT2
PHHPTOC1_OPERATE
13 Operate
PHLPTOC1_OPERATE SO2 Indication
PHIPTOC2_OPERATE 14
PHHPTOC2_OPERATE
PHLPTOC2_OPERATE
EFHPTOC1_OPERATE
EFLPTOC1_OPERATE
EFHPTOC2_OPERATE
EFLPTOC2_OPERATE
NSPTOC1_OPERATE OR
NSPTOC3_OPERATE
NSPTOC2_OPERATE
NSPTOC4_OPERATE
REF_OPERATE
T2PTTR1_OPERATE
ARCSARC1_OPERATE
ARCSARC2_OPERATE
ARCSARC3_OPERATE
ROVPTOV1_OPERATE
ROVPTOV2_OPERATE
PHPTOV1_OPERATE
PHPTOV2_OPERATE
PHPTUV1_OPERATE
PHPTUV2_OPERATE X110
+
SO1 14
REF
REF_OPERATE Operate
TPGAPC2 16 Alarm
15
IN1 OUT1
EFHPTOC1_OPERATE +
EFLPTOC1_OPERATE OR SO3 20
EFHPTOC2_OPERATE Earth Fault
EFLPTOC2_OPERATE TPGAPC3 Operate
22 Alarm
IN1 OUT1
21
IN2 OUT2
NSPTOC1_OPERATE
NSPTOC3_OPERATE +
NSPTOC2_OPERATE OR
NSPTOC4_OPERATE SO4 23 Negative
Sequence
24
Overcurrent
Operate Alarm
GUID-8D9B3FA1-4422-486F-80EF-884410E38296 V1 EN
The signal outputs from the IED are connected to give dedicated information on:
TPGAPC are timers and used for setting the minimum pulse length for the outputs.
There are four generic timers (TPGAPC1..4) available in the IED. The remaining
ones not described in the functional diagram are available in PCM600 for
connection where applicable.
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Requirements for measurement transformers
The selection of a CT depends not only on the CT specifications but also on the
network fault current magnitude, desired protection objectives, and the actual CT
burden. The protection settings of the IED should be defined in accordance with
the CT performance as well as other factors.
The rated accuracy limit factor (Fn) is the ratio of the rated accuracy limit primary
current to the rated primary current. For example, a protective current transformer
of type 5P10 has the accuracy class 5P and the accuracy limit factor 10. For
protective current transformers, the accuracy class is designed by the highest
permissible percentage composite error at the rated accuracy limit primary current
prescribed for the accuracy class concerned, followed by the letter "P" (meaning
protection).
Table 73: Limits of errors according to IEC 60044-1 for protective current transformers
Accuracy class Current error at Phase displacement at rated primary Composite error at
rated primary current rated accuracy limit
current (%) minutes centiradians primary current (%)
5P ±1 ±60 ±1.8 5
10P ±3 - - 10
The accuracy classes 5P and 10P are both suitable for non-directional overcurrent
protection. The 5P class provides a better accuracy. This should be noted also if
there are accuracy requirements for the metering functions (current metering,
power metering, and so on) of the IED.
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Requirements for measurement transformers
The CT accuracy primary limit current describes the highest fault current
magnitude at which the CT fulfils the specified accuracy. Beyond this level, the
secondary current of the CT is distorted and it might have severe effects on the
performance of the protection IED.
In practise, the actual accuracy limit factor (Fa) differs from the rated accuracy
limit factor (Fn) and is proportional to the ratio of the rated CT burden and the
actual CT burden.
Sin + Sn
Fa ≈ Fn ×
Sin + S
A071141 V1 EN
The nominal primary current I1n should be chosen in such a way that the thermal
and dynamic strength of the current measuring input of the IED is not exceeded.
This is always fulfilled when
The saturation of the CT protects the measuring circuit and the current input of the
IED. For that reason, in practice, even a few times smaller nominal primary current
can be used than given by the formula.
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The factor 0.7 takes into account the protection IED inaccuracy, current
transformer errors, and imperfections of the short circuit calculations.
The adequate performance of the CT should be checked when the setting of the
high set stage overcurrent protection is defined. The operate time delay caused by
the CT saturation is typically small enough when the overcurrent setting is
noticeably lower than Fa.
When defining the setting values for the low set stages, the saturation of the CT
does not need to be taken into account and the start current setting is simply
according to the formula.
With definite time mode of operation, the saturation of CT may cause a delay that
is as long as the time the constant of the DC component of the fault current, when
the current is only slightly higher than the starting current. This depends on the
accuracy limit factor of the CT, on the remanence flux of the core of the CT, and
on the operate time setting.
With inverse time mode of operation, the delay should always be considered as
being as long as the time constant of the DC component.
With inverse time mode of operation and when the high-set stages are not used, the
AC component of the fault current should not saturate the CT less than 20 times the
starting current. Otherwise, the inverse operation time can be further prolonged.
Therefore, the accuracy limit factor Fa should be chosen using the formula:
The Current start value is the primary pickup current setting of the IED.
The following figure describes a typical medium voltage feeder. The protection is
implemented as three-stage definite time non-directional overcurrent protection.
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A071142 V1 EN
The maximum three-phase fault current is 41.7 kA and the minimum three-phase
short circuit current is 22.8 kA. The actual accuracy limit factor of the CT is
calculated to be 59.
The start current setting for low-set stage (3I>) is selected to be about twice the
nominal current of the cable. The operate time is selected so that it is selective with
the next IED (not visible in the figure above). The settings for the high-set stage
and instantaneous stage are defined also so that grading is ensured with the
downstream protection. In addition, the start current settings have to be defined so
that the IED operates with the minimum fault current and it does not operate with
the maximum load current. The settings for all three stages are as in the figure above.
For the application point of view, the suitable setting for instantaneous stage (I>>>)
in this example is 3 500 A (5.83 x I2n). For the CT characteristics point of view, the
criteria given by the current transformer selection formula is fulfilled and also the
IED setting is considerably below the Fa. In this application, the CT rated burden
could have been selected much lower than 10 VA for economical reasons.
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IED physical connections
5.1 Inputs
RET615 209
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IED physical connections
X130-11 Common1)
X130-12 Common2)
X130-13 RTD4 (AI6), +
X130-14 RTD4 (AI6), -
X130-15 RTD5 (AI7), +
X130-16 RTD5 (AI7), -
X130-17 RTD6 (AI8), +
X130-18 RTD6 (AI8), -
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IED physical connections
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IED physical connections
The IED is provided with connection sockets X13, X14 and X15
only if the optional communication module with light sensor inputs
has been installed. If the arc protection option is selected when
ordering an IED, the light sensor inputs are included in the
communication module.
5.2 Outputs
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IED physical connections
Terminal Description
X110-21 SO3, NO
X110-22 SO3, NC
X110-23 SO4, common
X110-24 SO4, NO
Output contacts of slot X130 are available in the optional BIO module BIOB02A
for configurations A, B, C, D and J.
5.2.3 IRF
The IRF contact functions as an output contact for the self-supervision system of
the protection IED. Under normal operating conditions, the IED is energized and
the contact is closed (X100/3-5). When a fault is detected by the self-supervision
system or the auxiliary voltage is disconnected, the output contact drops off and the
contact closes (X100/3-4).
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Glossary
Section 6 Glossary
RET615 215
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Glossary
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