ABB Relion REG650 Quick start guide

Relion® 650 SERIES
Generator protection REG650
Version 1.1 IEC
Commissioning manual

Document ID: 1MRK 502 035-UEN
Issued: November 2019
Revision: A
Product version: 1.1
© Copyright 2011 ABB. All rights reserved

Copyright
This document and parts thereof must not be reproduced or copied without written
permission from ABB, and the contents thereof must not be imparted to a third party, nor
used for any unauthorized purpose.
The software or hardware described in this document is furnished under a license and may be
used or disclosed only in accordance with the terms of such license.
Trademarks
ABB and Relion are registered trademarks of 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 AB
Substation Automation Products
SE-721 59 Västerås
Sweden
Telephone: [phone]
Facsimile: [phone]
http://www.abb.com/substationautomation

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 IED is designed in accordance with the international standards of the
IEC 60255 series.

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 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.

Table of contents
Section 1 Introduction.................................................................................................... 7
1.1 This manual....................................................................................................................................7
1.2 Intended audience........................................................................................................................ 7
1.3 Product documentation..............................................................................................................8
1.3.1 Product documentation set.....................................................................................................8
1.3.2 Document revision history....................................................................................................... 9
1.3.3 Related documents....................................................................................................................9
1.4 Symbols and conventions.........................................................................................................10
1.4.1 Safety indication symbols...................................................................................................... 10
1.4.2 Manual conventions................................................................................................................. 10
Section 2 Safety information....................................................................................... 11
2.1 Symbols on the product.............................................................................................................11
2.2 Warnings....................................................................................................................................... 11
2.3 Caution signs...............................................................................................................................12
2.4 Note signs.................................................................................................................................... 13
Section 3 Available functions.......................................................................................15
3.1 Main protection functions........................................................................................................ 15
3.2 Back-up protection functions.................................................................................................. 15
3.3 Control and monitoring functions.......................................................................................... 16
3.4 Designed to communicate........................................................................................................18
3.5 Basic IED functions.....................................................................................................................19
Section 4 Starting up.....................................................................................................21
4.1 Factory and site acceptance testing.......................................................................................21
4.2 Commissioning checklist.......................................................................................................... 21
4.3 Checking the power supply...................................................................................................... 22
4.4 Energizing the IED...................................................................................................................... 22
4.4.1 Checking the IED operation....................................................................................................22
4.4.2 IED start-up sequence............................................................................................................. 22
4.5 Setting up communication between PCM600 and the IED................................................23
4.6 Writing an application configuration to the IED.................................................................. 26
4.7 Checking CT circuits...................................................................................................................27
4.8 Checking VT circuits...................................................................................................................27
4.9 Checking the RTXP test switch ...............................................................................................28
4.10 Checking binary input and output circuits............................................................................28
4.10.1 Binary input circuits.................................................................................................................28
4.10.2 Binary output circuits..............................................................................................................29
4.11 Checking optical connections..................................................................................................29
Table of contents
Generator protection REG650 1
Commissioning manual
© Copyright 2011 ABB. All rights reserved

Section 5 Establishing connection and verifying the IEC 61850 station
communication............................................................................................. 31
5.1 Setting the station communication........................................................................................31
5.2 Verifying the communication................................................................................................... 31
Section 6 Testing IED operation.................................................................................. 33
6.1 Preparing the IED to verify settings....................................................................................... 33
6.2 Activating test mode................................................................................................................. 34
6.3 Preparing the connection to the test equipment................................................................ 35
6.4 Connecting test equipment to the IED.................................................................................. 35
6.5 Releasing the function to be tested....................................................................................... 36
6.6 Verifying analog primary and secondary measurement.....................................................37
6.7 Testing protection functionality............................................................................................. 38
Section 7 Testing functionality................................................................................... 39
7.1 Testing disturbance report...................................................................................................... 39
7.1.1 Introduction.............................................................................................................................. 39
7.1.2 Disturbance report settings.................................................................................................. 39
7.2 Identifying the function to test in the technical reference manual ................................ 39
7.3 Testing differential protection functions............................................................................. 39
7.3.1 Transformer differential protection T3WPDIF .................................................................. 39
7.3.1.1 Verifying the settings........................................................................................................ 39
7.3.1.2 Completing the test...........................................................................................................40
7.3.2 High impedance differential protection HZPDIF ..............................................................40
7.3.2.1 Verifying the settings.........................................................................................................41
7.3.2.2 Completing the test........................................................................................................... 41
7.3.3 Generator differential protection GENPDIF .......................................................................41
7.3.3.1 Verifying the settings.........................................................................................................41
7.3.3.2 Completing the test........................................................................................................... 42
7.4 Testing impedance protection functions..............................................................................42
7.4.1 Underimpedance protection for generators and transformers ZGPDIS ..................... 42
7.4.1.1 Distance protection zones ZGPDIS................................................................................. 42
7.4.1.2 Phase-to-phase faults........................................................................................................43
7.4.2 Loss of excitation LEXPDIS ................................................................................................... 44
7.4.2.1 Verifying the settings........................................................................................................ 44
7.4.2.2 Completing the test...........................................................................................................45
7.4.3 Out-of-step OOSPPAM............................................................................................................45
7.4.3.1 Verifying the settings........................................................................................................ 45
7.4.4 Load encroachment LEPDIS ..................................................................................................48
7.4.4.1 Measuring the operate limit of set values.....................................................................49
7.4.4.2 Completing the test...........................................................................................................49
7.5 Testing current protection functions.................................................................................... 49
7.5.1 Four step phase overcurrent protection OC4PTOC......................................................... 49
7.5.1.1 Verifying the settings........................................................................................................ 49
7.5.1.2 Completing the test...........................................................................................................50
7.5.2 Four step residual overcurrent protection EF4PTOC ......................................................50
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Commissioning manual
© Copyright 2011 ABB. All rights reserved

7.5.2.1 Four step directional residual overcurrent protection .............................................. 50
7.5.2.2 Four step non-directional residual overcurrent protection....................................... 51
7.5.2.3 Completing the test........................................................................................................... 51
7.5.3 Sensitive directional residual overcurrent and power protection SDEPSDE ...............51
7.5.3.1 Measuring the operate and time limit for set values...................................................51
7.5.3.2 Completing the test........................................................................................................... 55
7.5.4 Thermal overload protection, two time constants TRPTTR ........................................... 55
7.5.4.1 Checking operate and reset values.................................................................................55
7.5.4.2 Completing the test...........................................................................................................56
7.5.5 Breaker failure protection CCRBRF...................................................................................... 56
7.5.5.1 Checking the phase current operate value, IP> ............................................................56
7.5.5.2 Checking the residual (earth fault) current operate value IN> set below IP> .........57
7.5.5.3 Checking the re-trip and back-up times.........................................................................57
7.5.5.4 Verifying the re-trip mode.................................................................................................57
7.5.5.5 Verifying the back-up trip mode......................................................................................58
7.5.5.6 Verifying the case RetripMode = Contact ......................................................................58
7.5.5.7 Verifying the function mode Current&Contact ............................................................ 59
7.5.5.8 Completing the test...........................................................................................................59
7.5.6 Pole discordance protection CCRPLD................................................................................. 60
7.5.6.1 Verifying the settings........................................................................................................60
7.5.6.2 Completing the test...........................................................................................................60
7.5.7 Directional underpower protection GUPPDUP ................................................................. 60
7.5.7.1 Verifying the settings........................................................................................................60
7.5.7.2 Completing the test........................................................................................................... 62
7.5.8 Directional overpower protection GOPPDOP ....................................................................62
7.5.8.1 Verifying the settings........................................................................................................ 62
7.5.8.2 Completing the test........................................................................................................... 63
7.5.9 Accidental energizing protection for synchronous generator AEGGAPC.....................63
7.5.9.1 Verifying the settings........................................................................................................ 63
7.5.10 Negative-sequence time overcurrent protection for machines NS2PTOC ..................63
7.5.10.1 Verifying settings by secondary injection..................................................................... 63
7.5.11 Voltage-restrained time overcurrent protection VR2PVOC ........................................... 65
7.5.11.1 Verifying the settings........................................................................................................ 65
7.5.11.2 Completing the test...........................................................................................................66
7.6 Testing voltage protection functions.................................................................................... 66
7.6.1 Two step undervoltage protection UV2PTUV ................................................................... 66
7.6.1.1 Verifying the setting.......................................................................................................... 66
7.6.1.2 Completing the test...........................................................................................................66
7.6.2 Two step overvoltage protection OV2PTOV ...................................................................... 67
7.6.2.1 Verifying the settings........................................................................................................ 67
7.6.2.2 Completing the test........................................................................................................... 67
7.6.3 Two step residual overvoltage protection ROV2PTOV ....................................................67
7.6.3.1 Verifying the settings........................................................................................................ 67
7.6.3.2 Completing the test........................................................................................................... 67
7.6.4 Overexcitation protection OEXPVPH .................................................................................. 68
7.6.4.1 Verifying the settings........................................................................................................ 68
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Generator protection REG650 3
Commissioning manual
© Copyright 2011 ABB. All rights reserved

7.6.4.2 Completing the test...........................................................................................................68
7.6.5 100% Stator earth fault protection, 3rd harmonic based STEFPHIZ ........................... 68
7.6.5.1 Testing..................................................................................................................................69
7.6.5.2 Verifying settings............................................................................................................... 70
7.6.5.3 Completing the test........................................................................................................... 70
7.6.6 Rotor earth fault protection 64R.......................................................................................... 70
7.7 Testing frequency protection functions................................................................................ 71
7.7.1 Underfrequency protection SAPTUF ....................................................................................71
7.7.1.1 Verifying the settings.........................................................................................................71
7.7.1.2 Completing the test........................................................................................................... 72
7.7.2 Overfrequency protection SAPTOF ......................................................................................72
7.7.2.1 Verifying the settings.........................................................................................................72
7.7.2.2 Completing the test........................................................................................................... 73
7.7.3 Rate-of-change frequency protection SAPFRC ................................................................. 73
7.7.3.1 Verifying the settings.........................................................................................................73
7.7.3.2 Completing the test........................................................................................................... 73
7.8 Testing secondary system supervision functions............................................................... 74
7.8.1 Fuse failure supervision SDDRFUF....................................................................................... 74
7.8.1.1 Checking that the binary inputs and outputs operate as expected ....................... 74
7.8.1.2 Measuring the operate value for the negative sequence function ..........................74
7.8.1.3 Measuring the operate value for the zero-sequence function ................................. 75
7.8.1.4 Checking the operation of the du/dt and di/dt based function ............................. 75
7.8.1.5 Completing the test........................................................................................................... 76
7.9 Testing control functions......................................................................................................... 76
7.9.1 Synchrocheck, energizing check, and synchronizing SESRSYN...................................... 76
7.9.1.1 Testing the synchronizing function................................................................................ 77
7.9.1.2 Testing the synchrocheck check......................................................................................78
7.9.1.3 Testing the energizing check...........................................................................................80
7.9.1.4 Testing the voltage selection........................................................................................... 81
7.9.1.5 Completing the test........................................................................................................... 81
7.10 Testing logic functions..............................................................................................................81
7.10.1 Tripping logic SMPPTRC .........................................................................................................81
7.10.1.1 Three phase operating mode........................................................................................... 81
7.10.1.2 Circuit breaker lockout...................................................................................................... 82
7.10.1.3 Completing the test........................................................................................................... 82
7.11 Testing monitoring functions..................................................................................................82
7.11.1 Event counter CNTGGIO......................................................................................................... 82
7.12 Testing metering functions..................................................................................................... 83
7.12.1 Pulse counter PCGGIO.............................................................................................................83
7.13 Exit test mode.............................................................................................................................83
Section 8 Commissioning and maintenance of the fault clearing system............ 85
8.1 Commissioning and maintenance of the fault clearing system.......................................85
8.1.1 Installation and commissioning............................................................................................85
8.1.2 Commissioning tests.............................................................................................................. 86
8.1.3 Periodic maintenance tests................................................................................................... 86
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Commissioning manual
© Copyright 2011 ABB. All rights reserved

8.1.3.1 Visual inspection.................................................................................................................87
8.1.3.2 Maintenance tests.............................................................................................................. 87
Section 9 Troubleshooting .......................................................................................... 91
9.1 Fault tracing.................................................................................................................................91
9.1.1 Identifying hardware errors................................................................................................... 91
9.1.2 Identifying runtime errors...................................................................................................... 91
9.1.3 Identifying communication errors........................................................................................ 91
9.1.3.1 Checking the communication link operation................................................................ 91
9.1.3.2 Checking the time synchronization................................................................................ 92
9.1.4 Running the display test......................................................................................................... 92
9.2 Indication messages..................................................................................................................92
9.2.1 Internal faults............................................................................................................................92
9.2.2 Warnings.................................................................................................................................... 93
9.2.3 Additional indications............................................................................................................. 93
9.3 Correction procedures.............................................................................................................. 94
9.3.1 Changing and setting the password................................................................................... 94
9.3.2 Identifying IED application problems.................................................................................. 94
9.3.2.1 Inspecting the wiring.........................................................................................................94
Section 10 Glossary.........................................................................................................99
Table of contents
Generator protection REG650 5
Commissioning manual
© Copyright 2011 ABB. All rights reserved

6

Section 1 Introduction
1.1 This manual
GUID-AB423A30-13C2-46AF-B7FE-A73BB425EB5F v11
The commissioning manual contains instructions on how to commission the IED. The manual
can also be used by system engineers and maintenance personnel for assistance during the
testing phase. The manual provides procedures for checking of external circuitry and
energizing the IED, parameter setting and configuration as well as verifying settings by
secondary injection. The manual describes the process of testing an IED in a substation which
is not in service. The chapters are organized in chronological order in which the IED should be
commissioned.
1.2 Intended audience
GUID-C9B8127F-5748-4BEA-9E4F-CC762FE28A3A v6
This manual addresses the personnel responsible for commissioning, maintenance and taking
the IED in and out of normal service.
The commissioning personnel must have a basic knowledge of handling electronic equipment.
The commissioning and maintenance personnel must be well experienced in using protection
equipment, test equipment, protection functions and the configured functional logics in the
IED.
1MRK 502 035-UEN A Section 1
Introduction
Generator protection REG650 7
Commissioning manual
© Copyright 2011 ABB. All rights reserved

1.3 Product documentation
1.3.1 Product documentation set GUID-3AA69EA6-F1D8-47C6-A8E6-562F29C67172 v9
Planning & purchase
Engineering
Installing
Commissioning
Operation
Maintenance
Decommissioning deinstalling & disposal
Application manual
Operation manual
Installation manual
Service manual
Engineering manual
Commissioning manual
Communication protocol
manual
Technical manual
Planning & purchase
Engineering
Installing
Commissioning
Operation
Maintenance
Decommissioning deinstalling & disposal
Planning & purchase
Engineering
Installing
Commissioning
Operation
Maintenance
Decommissioning deinstalling & disposal
Application manualApplication manual
Operation manualOperation manual
Installation manualInstallation manual
Service manualService manual
Engineering manualEngineering manual
Commissioning manualCommissioning manual
Communication protocol
manual
Communication protocol
manual
Technical manualTechnical manual
en07000220.vsd
IEC07000220 V1 EN-US
Figure 1: The intended use of manuals in different lifecycles
The engineering manual contains instructions on how to engineer the IEDs using the different
tools in PCM600. The manual provides instructions on how to set up a PCM600 project and
insert IEDs to the project structure. The manual also recommends a sequence for engineering
of protection and control functions, LHMI functions as well as communication engineering for
IEC 60870-5-103, IEC 61850 and DNP3.
The installation manual contains instructions on how to install the IED. The manual provides
procedures for mechanical and electrical installation. The chapters are organized in
chronological order in which the IED should be installed.
The commissioning manual contains instructions on how to commission the IED. The manual
can also be used by system engineers and maintenance personnel for assistance during the
testing phase. The manual provides procedures for checking of external circuitry and
energizing the IED, parameter setting and configuration as well as verifying settings by
secondary injection. The manual describes the process of testing an IED in a substation which
is not in service. The chapters are organized in chronological order in which the IED should be
commissioned.
The operation manual contains instructions on how to operate the IED once it has been
commissioned. The manual provides instructions for monitoring, controlling and setting the
IED. The manual also describes how to identify disturbances and how to view calculated and
measured power grid data to determine the cause of a fault.
Section 1 1MRK 502 035-UEN A
Introduction
8Generator protection REG650
Commissioning manual
© Copyright 2011 ABB. All rights reserved

The service manual contains instructions on how to service and maintain the IED. The manual
also provides procedures for de-energizing, de-commissioning and disposal of the IED.
The application manual contains application descriptions and setting guidelines sorted per
function. The manual can be used to find out when and for what purpose a typical protection
function can be used. The manual can also be used when calculating settings.
The technical manual contains application and functionality descriptions and lists function
blocks, logic diagrams, input and output signals, setting parameters and technical data sorted
per function. The manual can be used as a technical reference during the engineering phase,
installation and commissioning phase, and during normal service.
The communication protocol manual describes a communication protocol supported by the
IED. The manual concentrates on vendor-specific implementations.
The point list manual describes the outlook and properties of the data points specific to the
IED. The manual should be used in conjunction with the corresponding communication
protocol manual.
The service manual is not available yet.
1.3.2 Document revision history GUID-52A4699C-F83B-48F8-BF4E-D853043AB731 v1.1.1
Document revision/date Product series version History
-/February 2011 1.1 First release
A/November 2019 1.1 Maintenance release - Updated safety
information and bug corrections
1.3.3 Related documents GUID-DEA16B32-29D9-40B2-BC9F-12F3AEA90245 v3
Documents related to REG650 Identity number
Application manual 1MRK 502 033-UEN
Technical manual 1MRK 502 034-UEN
Commissioning manual 1MRK 502 035-UEN
Product Guide 1MRK 502 036-BEN
Type test certificate 1MRK 502 036-TEN
Rotor Earth Fault Protection with Injection Unit RXTTE4 and REG670 1MRG001910
650 series manuals Identity number
Communication protocol manual, DNP3 1MRK 511 241-UEN
Communication protocol manual, IEC 61850 1MRK 511 242-UEN
Communication protocol manual, IEC 60870-5-103 1MRK 511 243-UEN
Point list manual, DNP3 1MRK 511 244-UEN
Engineering manual 1MRK 511 245-UEN
Operation manual 1MRK 500 093-UEN
Installation manual 1MRK 514 014-UEN
1MRK 502 035-UEN A Section 1
Introduction
Generator protection REG650 9
Commissioning manual
© Copyright 2011 ABB. All rights reserved

1.4 Symbols and conventions
1.4.1 Safety indication symbols GUID-2945B229-DAB0-4F15-8A0E-B9CF0C2C7B15 v6
The electrical warning icon indicates the presence of a hazard which could
result in electrical shock.
The warning icon indicates the presence of a hazard which could result in
personal injury.
The caution icon indicates important information or warning related to the
concept discussed in the text. It might indicate the presence of a hazard which
could result in corruption of software or damage to equipment or property.
The information icon alerts the reader of important facts and conditions.
The tip icon indicates advice on, for example, how to design your project or
how to use a certain function.
Although warning hazards are related to personal injury, it is necessary to understand that
under certain operational conditions, operation of damaged equipment may result in
degraded process performance leading to personal injury or death. Therefore, comply fully
with all warning and caution notices.
1.4.2 Manual conventions AMU0600456 v8
Conventions used in IED manuals. A particular convention may not be used in this manual.
• 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, for example:
To navigate between the options, use and .
• HMI menu paths are presented in bold, for example:
Select Main menu/Settings.
• LHMI messages are shown in Courier font, for example:
To save the changes in non-volatile memory, select Yes and press .
• Parameter names are shown in italics, for example:
The function can be enabled and disabled with the Operation setting.
• The ^ character in front of an input or output signal name in the function block symbol
given for a function, indicates that the user can set an own signal name in PCM600.
• The * character after an input or output signal name in the function block symbol given for
a function, indicates that the signal must be connected to another function block in the
application configuration to achieve a valid application configuration.
Section 1 1MRK 502 035-UEN A
Introduction
10 Generator protection REG650
Commissioning manual
© Copyright 2011 ABB. All rights reserved

Section 2 Safety information
2.1 Symbols on the product
GUID-E48F2EC3-6AB8-4ECF-A77E-F16CE45CA5FD v4
All warnings must be observed.
Read the entire manual before doing installation or any maintenance work on
the product.
Class 1 Laser product. Take adequate measures to protect your eyes and do not
view directly with optical instruments.
2.2 Warnings
IP1504-1 v2
Observe the warnings during all types of work related to the product.
GUID-C9B6638A-57E7-4E05-9A33-A60E359C54AF v1
Only electrically skilled persons with the proper authorization and knowledge of
any safety hazards are allowed to carry out the electrical installation.
M2366-2 v2
National and local electrical safety regulations must always be followed.
Working in a high voltage environment requires serious approach to avoid
human injuries and damage to equipment.
M2362-2 v1
Do not touch circuitry during operation. Potentially lethal voltages and currents
are present.
M2364-2 v1
Always use suitable isolated test pins when measuring signals in open circuitry.
Potentially lethal voltages and currents are present.
M2370-2 v1
Never connect or disconnect a wire and/or a connector to or from a IED during
normal operation. Hazardous voltages and currents are present that may be
lethal. Operation may be disrupted and IED and measuring circuitry may be
damaged.
1MRK 502 035-UEN A Section 2
Safety information
Generator protection REG650 11
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© Copyright 2011 ABB. All rights reserved

GUID-BEDD698E-356C-4CF9-9DAE-64DB3CEADEAD v1
Dangerous voltages can occur on the connectors, even though the auxiliary
voltage has been disconnected.
M2369-2 v3
Always connect the IED to protective earth, regardless of the operating
conditions. This also applies to special occasions such as bench testing,
demonstrations and off-site configuration. This is class 1 equipment that shall
be earthed.
M2372-2 v1
Never remove any screw from a powered IED or from a IED connected to
powered circuitry. Potentially lethal voltages and currents are present.
SEMOD168311-3 v1
Take adequate measures to protect the eyes. Never look into the laser beam.
GUID-11CCF92B-E9E7-409C-84D0-DFDEA1DCBE85 v2
2.3 Caution signs
IP1503-1 v1
GUID-5D1412B8-8F9D-4D39-B6D1-60FB35797FD0 v2
Whenever changes are made in the IED, measures should be taken to avoid
inadvertent tripping.
GUID-F2A7BD77-80FB-48F0-AAE5-BE73DE520CC2 v1
The IED contains components which are sensitive to electrostatic discharge.
ESD precautions shall always be observed prior to touching components.
M2695-2 v2
Always transport PCBs (modules) using certified conductive bags.
M2696-2 v1
Do not connect live wires to the IED. Internal circuitry may be damaged
M2697-2 v2
Always use a conductive wrist strap connected to protective earth when
replacing modules. Electrostatic discharge (ESD) may damage the module and
IED circuitry.
M2698-2 v2
Take care to avoid electrical shock during installation and commissioning.
Section 2 1MRK 502 035-UEN A
Safety information
12 Generator protection REG650
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© Copyright 2011 ABB. All rights reserved

M2693-2 v1
Changing the active setting group will inevitably change the IEDs operation. Be
careful and check regulations before making the change.
2.4 Note signs
IP1497-1 v1.1.1
M19-2 v3.1.1
Observe the maximum allowed continuous current for the different current
transformer inputs of the IED. See technical data.
1MRK 502 035-UEN A Section 2
Safety information
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© Copyright 2011 ABB. All rights reserved

14