ABB RELION REB670 Instructions for use

Relion® 670 series
Busbar protection REB670 2.1 ANSI
Application manual

Document ID: 1MRK 505 337-UUS
Issued: December 2015
Revision: -
Product version: 2.1
© Copyright 2015 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 and 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.
This product includes software developed by the OpenSSL Project for use in the OpenSSL
Toolkit. (http://www.openssl.org/) This product includes cryptographic software written/
developed by: Eric Young ([email protected]) and Tim Hudson ([email protected]).
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.

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.

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 standard 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 and ANSI C37.90.

Table of contents
Section 1 Introduction..........................................................................17
This manual............................................................................................ 17
Intended audience.................................................................................. 17
Product documentation...........................................................................18
Product documentation set................................................................18
Document revision history................................................................. 19
Related documents............................................................................20
Document symbols and conventions...................................................... 20
Symbols.............................................................................................20
Document conventions...................................................................... 21
IEC61850 edition 1 / edition 2 mapping..................................................22
Section 2 Application...........................................................................31
General IED application..........................................................................31
Main protection functions........................................................................34
Back-up protection functions.................................................................. 35
Control and monitoring functions............................................................ 36
Communication.......................................................................................41
Basic IED functions.................................................................................43
Section 3 Configuration....................................................................... 45
Description of configuration REB670......................................................45
Available ACT configurations for pre-configured REB670.................45
Configuration X01..............................................................................45
Configuration X02..............................................................................45
Configuration X03..............................................................................46
Description of 3 ph package A20A.................................................... 46
Description of 3 ph package A31A.................................................... 48
Description of 1 ph package B20A.................................................... 53
Description of 1 ph package B31A.................................................... 56
Section 4 Analog inputs.......................................................................61
Introduction............................................................................................. 61
Setting guidelines................................................................................... 61
Setting of the phase reference channel.............................................61
Example........................................................................................62
Setting of current channels................................................................62
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Example 1.....................................................................................63
Example 2.....................................................................................63
Example 3.....................................................................................64
Examples on how to connect, configure and set CT inputs for
most commonly used CT connections..........................................67
Example on how to connect a wye connected three-phase CT
set to the IED................................................................................68
Example how to connect delta connected three-phase CT set
to the IED......................................................................................73
Example how to connect single-phase CT to the IED.................. 76
Setting of voltage channels............................................................... 78
Example........................................................................................78
Examples how to connect, configure and set VT inputs for
most commonly used VT connections..........................................78
Examples on how to connect a three phase-to-ground
connected VT to the IED.............................................................. 79
Example on how to connect a phase-to-phase connected VT
to the IED......................................................................................81
Example on how to connect an open delta VT to the IED for
high impedance grounded or ungrounded netwoeks................... 83
Example how to connect the open delta VT to the IED for low
impedance grounded or solidly grounded power systems........... 86
Example on how to connect a neutral point VT to the IED........... 89
Section 5 Local HMI............................................................................ 91
Display.................................................................................................... 92
LEDs....................................................................................................... 95
Keypad....................................................................................................95
Local HMI functionality............................................................................97
Protection and alarm indication......................................................... 97
Parameter management ...................................................................98
Front communication......................................................................... 99
Section 6 Differential protection........................................................ 101
Busbar differential protection ............................................................... 101
Identification.................................................................................... 101
Basic applications............................................................................103
General.......................................................................................103
Meshed corner application and T-connection application.......... 103
Busbar protection applications........................................................ 103
General.......................................................................................103
Distinctive features of busbar protection schemes..................... 104
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Differential protection..................................................................104
Zone selection (CT switching).................................................... 107
Auxiliary contact requirement and evaluation.............................107
Minimum contact requirements.................................................. 108
Auxiliary contact evaluation logic................................................108
Zone selection features.............................................................. 111
CT disconnection for bus section and bus coupler current
transformer cores....................................................................... 113
End fault protection.....................................................................117
Zone interconnection (Load transfer)......................................... 120
Tripping circuit arrangement.......................................................125
Trip arrangement with one-phase version.................................. 126
Centralized trip unit.....................................................................127
Decentralized trip arrangement.................................................. 127
Mechanical lock-out function...................................................... 128
Contact reinforcement with heavy duty relays............................128
Trip circuit supervision for busbar protection..............................129
Different busbar arrangements........................................................129
General.......................................................................................129
Single busbar arrangements...................................................... 129
Single busbar arrangements with sectionalizer.......................... 130
Single busbar arrangements with bus-section breaker.............. 131
H-type busbar arrangements......................................................132
Double circuit breaker busbar arrangement............................... 134
Breaker-and-a-half busbar arrangements.................................. 136
Double busbar single breaker arrangement............................... 138
Double busbar arrangements with two bus-section breakers
and two bus-coupler breakers.................................................... 144
Double busbar-single breaker with transfer bus arrangements..145
Combined busbar arrangements................................................ 147
Summation principle........................................................................ 149
Introduction.................................................................................149
Auxiliary summation CTs............................................................152
Possible ASCT connections for REB670....................................154
Main CT ratio mismatch correction.............................................155
Primary pick-up levels for summation type differential
protection ...................................................................................155
SLCE 8/ASCT characteristics for end-connection......................158
SLCE 8/ASCT characteristics for series-connection.................. 159
Section 7 Current protection..............................................................161
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Four step phase overcurrent protection OC4PTOC(51/67).................. 161
Identification.................................................................................... 161
Application....................................................................................... 161
Setting guidelines............................................................................ 162
Settings for each step.................................................................164
2nd harmonic restrain.................................................................168
Four step single phase overcurrent protection PH4SPTOC (51)..........174
Identification.................................................................................... 174
Application....................................................................................... 174
Setting guidelines............................................................................ 175
Settings for each step (x = 1-4).................................................. 176
Second harmonic restrain...........................................................178
Four step residual overcurrent protection, (Zero sequence or
negative sequence directionality) EF4PTOC (51N/67N)...................... 183
Identification.................................................................................... 183
Setting guidelines............................................................................ 183
Settings for each step (x = 1, 2, 3 and 4)................................... 184
Common settings for all steps.................................................... 186
2nd harmonic restrain.................................................................188
Parallel transformer inrush current logic.....................................188
Switch onto fault logic.................................................................189
Four step directional negative phase sequence overcurrent
protection NS4PTOC (46I2)..................................................................190
Identification.................................................................................... 191
Application....................................................................................... 191
Setting guidelines............................................................................ 193
Settings for each step ................................................................193
Common settings for all steps.................................................... 196
Thermal overload protection, two time constants TRPTTR (49)...........197
Identification.................................................................................... 198
Application....................................................................................... 198
Setting guideline.............................................................................. 199
Breaker failure protection CCRBRF(50BF)...........................................201
Identification.................................................................................... 201
Application....................................................................................... 202
Setting guidelines............................................................................ 202
Breaker failure protection, single phase version CCSRBRF (50BF).... 206
Identification.................................................................................... 206
Application....................................................................................... 206
Setting guidelines............................................................................ 206
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