Siemens 7SR51 Application guide

Reyrolle 7SR5
Overcurrent Protection
Device
7SR51
V01.00
Device Manual
C53000-G7040-C014-1
Preface
Open Source Software
Table of Contents
Introduction 1
Basic Structure of the Device Functionality 2
Device Functionality 3
7SR51 Function Templates 4
Protection and Automation Functions 5
Supervision Functions 6
Control Functions 7
Instruments and Meters 8
Functional Tests 9
Technical Data 10
Appendix A

i
i
NOTE
For your own safety, observe the warnings and safety instructions contained in this document, if available.
Disclaimer of Liability
Subject to changes and errors. The information given in
this document only contains general descriptions and/or
performance features which may not always specifically
reflect those described, or which may undergo modifica-
tion in the course of further development of the products.
The requested performance features are binding only when
they are expressly agreed upon in the concluded contract.
Document version: C53000-G7040-C014-1.01.00
Edition: 11.2019
Version of the product described: V01.00
Copyright
Copyright © Siemens 2019. All rights reserved.
The disclosure, duplication, distribution and editing of this
document, or utilization and communication of the content
are not permitted, unless authorized in writing. All rights,
including rights created by patent grant or registration of a
utility model or a design, are reserved.

Preface
Purpose of the Manual
Target Audience
This manual is mainly intended for protection system engineers, commissioning engineers, persons entrusted
with the setting, testing and maintenance of automation, selective protection and control equipment, and
operational crew in electrical installations and power plants.
Scope
This manual applies to the Reyrolle 7SR51 device family.
Further Documentation
[dw_7SR5_furtherdocumentation_devicemanual, 1, en_US]
•Device manuals
Each device manual describes the functions and applications of a specific Reyrolle 7SR51 device. The
printed manual for the device has the same informational structure.
•Hardware manual
The hardware manual describes the hardware building blocks and device combinations of the Reyrolle
7SR51 device family.
•Operating manual
The operating manual describes the basic principles and procedures for operating and installing the
devices of the Reyrolle 7SR51 range.
Reyrolle 7SR5, Overcurrent Protection Device, Device Manual 3
C53000-G7040-C014-1, Edition 11.2019

•Communication protocol manual
The communication protocol manual contains a description of the protocols for communication within
the Reyrolle 7SR51 device family and to higher-level network control centers.
•Product information
The product information includes general information about device installation, technical data, limiting
values for input and output modules, and conditions when preparing for operation. This document is
provided with each Reyrolle 7SR51 device.
•Engineering Guide
The engineering guide describes the essential steps when engineering with Reydisp Manager 2. In addi-
tion, the engineering guide shows you how to load a planned configuration to a Reyrolle 7SR51 device
and update the functionality of the Reyrolle 7SR51 device.
•Virtual Relay
The virtual relay allows a user to view, control and manipulate a virtual 7SR51 device. The virtual relay is
a tool that can facilitate training and understanding of the controls and functions on a Reyrolle 7SR51
device.
•Reyrolle 7SR51 catalog
The Reyrolle 7SR51 catalog describes the system features and the devices of Reyrolle 7SR51.
•Selection guide for Reyrolle and SIPROTEC
The selection guide offers an overview of the device series of the Siemens protection devices, and a
device selection table.
Indication of Conformity
This product is CE-compliant to relevant EU directives.
Additional Support
For questions about the system, contact your Siemens sales partner.
Customer Support Center
Our Customer Support Center provides a 24-hour service.
Siemens AG
Customer Support Center
Humboldtstrasse 59
90459 Nuremberg
Germany
E-mail: [email protected]
Training Courses
Inquiries regarding individual training courses should be addressed to our Training Center:
Siemens AG Phone: [phone]
Siemens Power Academy TD Fax: [phone]
Humboldtstrasse 59 E-mail: [email protected]
90459 Nuremberg Internet: www.siemens.com/poweracademy
Germany
Notes on Safety
This document is not a complete index of all safety measures required for operation of the equipment (module
or device). However, it comprises important information that must be followed for personal safety, as well as
to avoid material damage. Information is highlighted and illustrated as follows according to the degree of
danger:
Preface
4 Reyrolle 7SR5, Overcurrent Protection Device, Device Manual
C53000-G7040-C014-1, Edition 11.2019

!
DANGER
DANGER means that death or severe injury will result if the measures specified are not taken.
²Comply with all instructions, in order to avoid death or severe injuries.
!
WARNING
WARNING means that death or severe injury may result if the measures specified are not taken.
²Comply with all instructions, in order to avoid death or severe injuries.
!
CAUTION
CAUTION means that medium-severe or slight injuries can occur if the specified measures are not taken.
²Comply with all instructions, in order to avoid moderate or minor injuries.
NOTICE
NOTICE means that property damage can result if the measures specified are not taken.
²Comply with all instructions, in order to avoid property damage.
i
i
NOTE
Important information about the product, product handling or a certain section of the documentation
which must be given attention.
Qualified Electrical Engineering Personnel
Only qualified electrical engineering personnel may commission and operate the equipment (module, device)
described in this document. Qualified electrical engineering personnel in the sense of this manual are people
who can demonstrate technical qualifications as electrical technicians. These persons may commission,
isolate, ground and label devices, systems and circuits according to the standards of safety engineering.
Proper Use
The equipment (device, module) may be used only for such applications as set out in the catalogs and the
technical description, and only in combination with third-party equipment recommended and approved by
Siemens.
Problem-free and safe operation of the product depends on the following:
•Proper transport
•Proper storage, setup and installation
•Proper operation and maintenance
When electrical equipment is operated, hazardous voltages are inevitably present in certain parts. If proper
action is not taken, death, severe injury or property damage can result:
•The equipment must be grounded at the grounding terminal before any connections are made.
•All circuit components connected to the power supply may be subject to dangerous voltage.
Preface
Reyrolle 7SR5, Overcurrent Protection Device, Device Manual 5
C53000-G7040-C014-1, Edition 11.2019

•Hazardous voltages may be present in equipment even after the supply voltage has been disconnected
(capacitors can still be charged).
•Operation of equipment with exposed current-transformer circuits is prohibited. Before disconnecting the
equipment, ensure that the current-transformer circuits are short-circuited.
•The limiting values stated in the document must not be exceeded. This must also be considered during
testing and commissioning.
•Terminals are exposed when the device element is removed from the case.
Preface
6 Reyrolle 7SR5, Overcurrent Protection Device, Device Manual
C53000-G7040-C014-1, Edition 11.2019

Open Source Software
The product contains, among other things, Open Source Software developed by third parties. The Open
Source Software used in the product and the license agreements concerning this software can be found in the
Readme_OSS. These Open Source Software files are protected by copyright. Your compliance with those
license conditions will entitle you to use the Open Source Software as foreseen in the relevant license. In the
event of conflicts between Siemens license conditions and the Open Source Software license conditions, the
Open Source Software conditions shall prevail with respect to the Open Source Software portions of the soft-
ware. The Open Source Software is licensed royalty-free. Insofar as the applicable Open Source Software
License Conditions provide for it you can order the source code of the Open Source Software from your
Siemens sales contact – against payment of the shipping and handling charges – for a period of at least 3
years after purchase of the product. We are liable for the product including the Open Source Software
contained in it pursuant to the license conditions applicable to the product. Any liability for the Open Source
Software beyond the program flow intended for the product is explicitly excluded. Furthermore any liability
for defects resulting from modifications to the Open Source Software by you or third parties is excluded. We
do not provide any technical support for the product if it has been modified.
The ReadmeOSS documents for the product can be found here: Siemens.com/Reyrolle
Reyrolle 7SR5, Overcurrent Protection Device, Device Manual 7
C53000-G7040-C014-1, Edition 11.2019

8 Reyrolle 7SR5, Overcurrent Protection Device, Device Manual
C53000-G7040-C014-1, Edition 11.2019

Table of Contents
Preface..........................................................................................................................................................3
Open Source Software..................................................................................................................................7
1 Introduction ............................................................................................................................................... 21
2 Basic Structure of the Device Functionality............................................................................................... 27
2.1 Introduction......................................................................................................................28
2.2 Analogue Inputs................................................................................................................29
2.3 Function Groups and Function Elements........................................................................... 31
2.4 Device Startup.................................................................................................................. 34
2.5 Real Time Clock.................................................................................................................36
3 Device Functionality .................................................................................................................................. 41
3.1 Device Fascia ................................................................................................................... 42
3.1.1 Overview of Functions................................................................................................. 42
3.1.2 Indications and Instruments.........................................................................................44
3.1.3 Reading Indications using Reydisp................................................................................48
3.2 Device Configuration ........................................................................................................49
3.2.1 Overview of Functions................................................................................................. 49
3.2.2 Structure of the Function.............................................................................................49
3.2.3 Logic of the Function...................................................................................................49
3.2.4 Application and Setting Notes......................................................................................49
3.2.5 Settings Menu............................................................................................................. 56
3.2.6 IEC 61850 Functional Information Mapping................................................................. 58
3.3 CT and VT Inputs .............................................................................................................. 60
3.3.1 Overview of Functions................................................................................................. 60
3.3.2 Structure of the Function.............................................................................................60
3.3.3 Application and Setting Notes......................................................................................60
3.3.4 Settings Menu............................................................................................................. 64
3.4 Binary Inputs ....................................................................................................................65
3.4.1 Overview of Functions................................................................................................. 65
3.4.2 Structure of the Function.............................................................................................65
3.4.3 Logic of the Function...................................................................................................66
3.4.4 Application and Setting Notes......................................................................................68
3.4.5 Settings Menu............................................................................................................. 74
3.4.6 IEC 61850 Functional Information Mapping ................................................................ 76
3.5 Binary Outputs ................................................................................................................. 78
3.5.1 Overview of Functions................................................................................................. 78
3.5.2 Structure of the Function.............................................................................................78
Reyrolle 7SR5, Overcurrent Protection Device, Device Manual 9
C53000-G7040-C014-1, Edition 11.2019

3.5.3 Logic of the Function...................................................................................................79
3.5.4 Application and Setting Notes......................................................................................82
3.5.5 Settings Menu............................................................................................................. 85
3.5.6 IEC 61850 Functional Information Mapping ................................................................ 88
3.6 Data Storage .................................................................................................................... 95
3.6.1 Demand Data Log........................................................................................................95
3.6.2 Waveform Storage.....................................................................................................113
3.6.3 Fault Storage.............................................................................................................115
3.6.4 Energy Storage.......................................................................................................... 118
3.6.5 Event Log.................................................................................................................. 120
3.6.6 Fault Locator............................................................................................................. 121
3.7 Data Communications .................................................................................................... 124
3.7.1 Overview of Functions............................................................................................... 124
3.7.2 Structure of the Function...........................................................................................124
3.7.3 Application and Setting Notes....................................................................................125
3.7.4 Settings Menu........................................................................................................... 126
3.8 Quick Logic .................................................................................................................... 130
3.8.1 Overview of Functions............................................................................................... 130
3.8.2 Structure of the Function...........................................................................................130
3.8.3 Logic of the Function.................................................................................................131
3.8.4 Application and Setting Notes....................................................................................131
3.8.5 Settings Menu........................................................................................................... 133
3.8.6 IEC 61850 Functional Information Mapping .............................................................. 133
4 7SR51 Function Templates ...................................................................................................................... 135
4.1 Introduction....................................................................................................................136
4.2 Function Groups and Function Elements......................................................................... 137
4.3 Function Configuration .................................................................................................. 139
4.3.1 Overview of the Function.......................................................................................... 139
4.3.2 Structure of the Function...........................................................................................139
4.3.3 Logic of the Function.................................................................................................139
4.3.4 Application and Setting Notes....................................................................................139
4.3.5 Settings Menu........................................................................................................... 139
4.3.6 Information List......................................................................................................... 141
5 Protection and Automation Functions .....................................................................................................143
5.1 21LB Load Blinder .......................................................................................................... 144
5.1.1 Overview of Function................................................................................................ 144
5.1.2 Structure of the Function...........................................................................................144
5.1.3 Logic of the Function.................................................................................................144
5.1.4 Application and Setting Notes....................................................................................145
5.1.5 Settings Menu........................................................................................................... 148
5.1.6 Information List......................................................................................................... 149
5.2 27 Undervoltage Protection – 3-Phase ............................................................................ 150
5.2.1 Overview of Function................................................................................................ 150
5.2.2 Structure of the Function...........................................................................................150
5.2.3 Logic of the Function.................................................................................................151
Table of Contents
10 Reyrolle 7SR5, Overcurrent Protection Device, Device Manual
C53000-G7040-C014-1, Edition 11.2019

5.2.4 Application and Setting Notes....................................................................................151
5.2.5 Settings Menu........................................................................................................... 154
5.2.6 IEC 61850 Functional Information Mapping .............................................................. 155
5.2.7 Information List......................................................................................................... 156
5.3 27Vx Undervoltage Protection – Vx ................................................................................ 157
5.3.1 Overview of Function................................................................................................ 157
5.3.2 Structure of the Function...........................................................................................157
5.3.3 Logic of the Function.................................................................................................158
5.3.4 Application and Setting Notes....................................................................................158
5.3.5 Settings Menu........................................................................................................... 160
5.3.6 IEC 61850 Functional Information Mapping .............................................................. 161
5.3.7 Information List......................................................................................................... 162
5.4 32 Power Protection .......................................................................................................163
5.4.1 Overview of Function................................................................................................ 163
5.4.2 Structure of the Function...........................................................................................163
5.4.3 Logic of the Function.................................................................................................164
5.4.4 Application and Setting Notes....................................................................................164
5.4.5 Settings Menu........................................................................................................... 166
5.4.6 IEC 61850 Functional Information Mapping .............................................................. 166
5.4.7 Information List......................................................................................................... 172
5.5 37 Undercurrent Protection – Phase ............................................................................... 173
5.5.1 Overview of Functions............................................................................................... 173
5.5.2 Structure of the Function...........................................................................................173
5.5.3 Logic of the Function.................................................................................................174
5.5.4 Application and Setting Notes....................................................................................174
5.5.5 Settings Menu........................................................................................................... 175
5.5.6 IEC 61850 Functional Information Mapping .............................................................. 176
5.5.7 Information List......................................................................................................... 177
5.6 37G Undercurrent Earth Fault – Measured.......................................................................179
5.6.1 Overview of Functions............................................................................................... 179
5.6.2 Structure of the Function...........................................................................................179
5.6.3 Logic of the Function.................................................................................................179
5.6.4 Application and Setting Notes....................................................................................179
5.6.5 Settings Menu........................................................................................................... 180
5.6.6 IEC 61850 Functional Information Mapping .............................................................. 180
5.6.7 Information List......................................................................................................... 181
5.7 46 Negative-Sequence Overcurrent Protection.................................................................182
5.7.1 Overview of Functions............................................................................................... 182
5.7.2 Structure of the Function...........................................................................................182
5.7.3 Logic of the Function.................................................................................................183
5.7.4 Application and Setting Notes....................................................................................183
5.7.5 Settings Menu........................................................................................................... 186
5.7.6 IEC 61850 Functional Information Mapping .............................................................. 187
5.7.7 Information List......................................................................................................... 189
5.8 46BC Broken Conductor Detection...................................................................................190
5.8.1 Overview of Functions............................................................................................... 190
Table of Contents
Reyrolle 7SR5, Overcurrent Protection Device, Device Manual 11
C53000-G7040-C014-1, Edition 11.2019

5.8.2 Structure of the Function...........................................................................................190
5.8.3 Logic of the Function.................................................................................................191
5.8.4 Application and Setting Notes....................................................................................191
5.8.5 Settings Menu........................................................................................................... 192
5.8.6 IEC 61850 Functional Information Mapping .............................................................. 193
5.8.7 Information List......................................................................................................... 194
5.9 47 Sequence Overvoltage Protection............................................................................... 195
5.9.1 Overview of Function................................................................................................ 195
5.9.2 Structure of the Function...........................................................................................195
5.9.3 Logic of the Function.................................................................................................196
5.9.4 Application and Setting Notes....................................................................................196
5.9.5 Settings Menu........................................................................................................... 198
5.9.6 IEC 61850 Functional Information Mapping .............................................................. 199
5.9.7 Information List......................................................................................................... 200
5.10 49 Thermal Overload Protection...................................................................................... 201
5.10.1 Overview of Function................................................................................................ 201
5.10.2 Structure of the Function...........................................................................................201
5.10.3 Logic of the Function.................................................................................................202
5.10.4 Application and Setting Notes....................................................................................202
5.10.5 Settings Menu........................................................................................................... 203
5.10.6 IEC 61850 Functional Information Mapping .............................................................. 204
5.10.7 Information List......................................................................................................... 205
5.11 50 Instantaneous Overcurrent – Phase............................................................................ 206
5.11.1 Overview of Functions............................................................................................... 206
5.11.2 Structure of the Function...........................................................................................206
5.11.3 Logic of the Function.................................................................................................207
5.11.4 Application and Setting Notes....................................................................................208
5.11.5 Settings Menu........................................................................................................... 211
5.11.6 IEC 61850 Functional Information Mapping .............................................................. 212
5.11.7 Information List......................................................................................................... 215
5.12 50AFD Arc Flash Detection.............................................................................................. 216
5.12.1 Overview of Functions............................................................................................... 216
5.12.2 Structure of the Function...........................................................................................216
5.12.3 Logic of the Function.................................................................................................217
5.12.4 Application and Setting Notes....................................................................................218
5.12.5 Settings Menu........................................................................................................... 218
5.12.6 IEC 61850 Functional Information Mapping .............................................................. 219
5.12.7 Information List......................................................................................................... 220
5.13 50G Instantaneous Earth Fault – Measured......................................................................221
5.13.1 Overview of Functions............................................................................................... 221
5.13.2 Structure of the Function...........................................................................................221
5.13.3 Logic of the Function.................................................................................................222
5.13.4 Application and Setting Notes....................................................................................223
5.13.5 Settings Menu........................................................................................................... 225
5.13.6 IEC 61850 Functional Information Mapping .............................................................. 226
5.13.7 Information List......................................................................................................... 227
Table of Contents
12 Reyrolle 7SR5, Overcurrent Protection Device, Device Manual
C53000-G7040-C014-1, Edition 11.2019

5.14 50GS Instantaneous Sensitive Earth Fault – Measured..................................................... 228
5.14.1 Overview of Function................................................................................................ 228
5.14.2 Structure of the Function...........................................................................................228
5.14.3 Logic of the Function.................................................................................................229
5.14.4 Application and Setting Notes....................................................................................230
5.14.5 Settings Menu........................................................................................................... 231
5.14.6 IEC 61850 Functional Information Mapping .............................................................. 232
5.14.7 Information List......................................................................................................... 233
5.15 50N Instantaneous Earth Fault – Calculated.....................................................................234
5.15.1 Overview of Functions............................................................................................... 234
5.15.2 Structure of the Function...........................................................................................234
5.15.3 Logic of the Function.................................................................................................235
5.15.4 Application and Setting Notes....................................................................................236
5.15.5 Settings Menu........................................................................................................... 238
5.15.6 IEC 61850 Functional Information Mapping .............................................................. 238
5.15.7 Information List......................................................................................................... 240
5.16 50SOTF Switch onto Fault............................................................................................... 241
5.16.1 Overview of Functions............................................................................................... 241
5.16.2 Structure of the Function...........................................................................................241
5.16.3 Logic of the Function.................................................................................................242
5.16.4 Application and Setting Notes....................................................................................243
5.16.5 Settings Menu........................................................................................................... 244
5.16.6 IEC 61850 Functional Information Mapping .............................................................. 244
5.16.7 Information List......................................................................................................... 249
5.17 51 Time-Delayed Overcurrent – Phase............................................................................. 250
5.17.1 Overview of Function................................................................................................ 250
5.17.2 Structure of the Function...........................................................................................250
5.17.3 Logic of the Function.................................................................................................252
5.17.4 Application and Setting Notes....................................................................................253
5.17.5 Settings Menu........................................................................................................... 262
5.17.6 IEC 61850 Functional Information Mapping .............................................................. 264
5.17.7 Information List......................................................................................................... 267
5.18 51G Time-Delayed Earth Fault – Measured...................................................................... 268
5.18.1 Overview of Functions............................................................................................... 268
5.18.2 Structure of the Function...........................................................................................268
5.18.3 Logic of the Function.................................................................................................269
5.18.4 Application and Setting Notes....................................................................................270
5.18.5 Settings Menu........................................................................................................... 274
5.18.6 IEC 61850 Functional Information Mapping .............................................................. 275
5.18.7 Information List......................................................................................................... 276
5.19 51GS Time-Delayed Sensitive Earth Fault – Measured...................................................... 277
5.19.1 Overview of Function................................................................................................ 277
5.19.2 Structure of the Function...........................................................................................277
5.19.3 Logic of the Function.................................................................................................278
5.19.4 Application and Setting Notes....................................................................................279
5.19.5 Settings Menu........................................................................................................... 282
Table of Contents
Reyrolle 7SR5, Overcurrent Protection Device, Device Manual 13
C53000-G7040-C014-1, Edition 11.2019

5.19.6 IEC 61850 Functional Information Mapping .............................................................. 283
5.19.7 Information List......................................................................................................... 285
5.20 51N Time-Delayed Earth Fault – Calculated..................................................................... 286
5.20.1 Overview of Function................................................................................................ 286
5.20.2 Structure of the Function...........................................................................................286
5.20.3 Logic of the Function.................................................................................................287
5.20.4 Application and Setting Notes....................................................................................288
5.20.5 Settings Menu........................................................................................................... 291
5.20.6 IEC 61850 Functional Information Mapping .............................................................. 292
5.20.7 Information List......................................................................................................... 294
5.21 55 Power Factor..............................................................................................................295
5.21.1 Overview of Functions............................................................................................... 295
5.21.2 Structure of the Function...........................................................................................295
5.21.3 Logic of the Function.................................................................................................296
5.21.4 Application and Setting Notes....................................................................................296
5.21.5 Settings Menu........................................................................................................... 299
5.21.6 IEC 61850 Functional Information Mapping .............................................................. 299
5.21.7 Information List......................................................................................................... 305
5.22 59 Overvoltage Protection – 3 Phase............................................................................... 306
5.22.1 Overview of Functions............................................................................................... 306
5.22.2 Structure of the Function...........................................................................................306
5.22.3 Logic of the Function.................................................................................................307
5.22.4 Application and Setting Notes....................................................................................307
5.22.5 Settings Menu........................................................................................................... 309
5.22.6 IEC 61850 Functional Information Mapping .............................................................. 310
5.22.7 Information List......................................................................................................... 312
5.23 59N Neutral Voltage Displacement.................................................................................. 313
5.23.1 Overview of Functions............................................................................................... 313
5.23.2 Structure of the Function...........................................................................................313
5.23.3 Logic of the Function.................................................................................................314
5.23.4 Application and Setting Notes....................................................................................315
5.23.5 Settings Menu........................................................................................................... 316
5.23.6 IEC 61850 Functional Information Mapping .............................................................. 317
5.23.7 Information List......................................................................................................... 319
5.24 59Vx Overvoltage Protection – Vx................................................................................... 320
5.24.1 Overview of Function................................................................................................ 320
5.24.2 Structure of the Function...........................................................................................320
5.24.3 Logic of the Function.................................................................................................321
5.24.4 Application and Setting Notes....................................................................................321
5.24.5 Settings Menu........................................................................................................... 322
5.24.6 IEC 61850 Functional Information Mapping .............................................................. 322
5.24.7 Information List......................................................................................................... 323
5.25 67 Directional Overcurrent/Earth Fault.............................................................................324
5.25.1 Overview of Functions............................................................................................... 324
5.25.2 Structure of the Function...........................................................................................324
5.25.3 Logic of the Function.................................................................................................325
Table of Contents
14 Reyrolle 7SR5, Overcurrent Protection Device, Device Manual
C53000-G7040-C014-1, Edition 11.2019

5.25.4 Application and Setting Notes....................................................................................326
5.25.5 Settings Menu........................................................................................................... 335
5.25.6 Information List......................................................................................................... 336
5.26 78VS Voltage Vector Shift................................................................................................337
5.26.1 Overview of Functions............................................................................................... 337
5.26.2 Structure of the Function...........................................................................................337
5.26.3 Logic of the Function.................................................................................................338
5.26.4 Application and Setting Notes....................................................................................338
5.26.5 Settings Menu........................................................................................................... 340
5.26.6 IEC 61850 Functional Information Mapping .............................................................. 340
5.26.7 Information List......................................................................................................... 341
5.27 81 Frequency Protection – "f>" or "f<"..............................................................................342
5.27.1 Overview of Functions............................................................................................... 342
5.27.2 Structure of the Function...........................................................................................342
5.27.3 Logic of the Function.................................................................................................343
5.27.4 Application and Setting Notes....................................................................................343
5.27.5 Settings Menu........................................................................................................... 346
5.27.6 IEC 61850 Functional Information Mapping .............................................................. 346
5.27.7 Information List......................................................................................................... 348
5.28 81R Frequency Protection – "df/dt".................................................................................. 350
5.28.1 Overview of Functions............................................................................................... 350
5.28.2 Structure of the Function...........................................................................................350
5.28.3 Logic of the Function.................................................................................................351
5.28.4 Application and Setting Notes....................................................................................351
5.28.5 Settings Menu........................................................................................................... 353
5.28.6 IEC 61850 Functional Information Mapping .............................................................. 353
5.28.7 Information List......................................................................................................... 354
5.29 87GH Restricted Earth-Fault Protection – High-Impedance............................................... 355
5.29.1 Overview of Functions............................................................................................... 355
5.29.2 Structure of the Function...........................................................................................355
5.29.3 Logic of the Function.................................................................................................355
5.29.4 Application and Setting Notes....................................................................................356
5.29.5 Settings Menu........................................................................................................... 363
5.29.6 IEC 61850 Functional Information Mapping .............................................................. 363
5.29.7 Information List......................................................................................................... 364
6 Supervision Functions ............................................................................................................................. 367
6.1 50BF Circuit-Breaker Failure Protection – 3 Pole............................................................... 368
6.1.1 Overview of Functions............................................................................................... 368
6.1.2 Structure of the Function...........................................................................................368
6.1.3 Logic of the Function.................................................................................................369
6.1.4 Application and Setting Notes....................................................................................369
6.1.5 Settings Menu........................................................................................................... 371
6.1.6 IEC 61850 Functional Information Mapping .............................................................. 371
6.1.7 Information List......................................................................................................... 372
6.2 60CTS CT Supervision......................................................................................................374
6.2.1 Overview of Functions............................................................................................... 374
Table of Contents
Reyrolle 7SR5, Overcurrent Protection Device, Device Manual 15
C53000-G7040-C014-1, Edition 11.2019

6.2.2 Structure of the Function...........................................................................................374
6.2.3 Logic of the Function.................................................................................................375
6.2.4 Application and Setting Notes....................................................................................376
6.2.5 Settings Menu........................................................................................................... 377
6.2.6 Information List......................................................................................................... 378
6.3 60VTS VT Supervision......................................................................................................379
6.3.1 Overview of Functions............................................................................................... 379
6.3.2 Structure of the Function...........................................................................................379
6.3.3 Logic of the Function.................................................................................................380
6.3.4 Application and Setting Notes....................................................................................380
6.3.5 Settings Menu........................................................................................................... 382
6.3.6 Information List......................................................................................................... 382
6.4 74CC Close-Circuit Supervision........................................................................................ 383
6.4.1 Overview of Functions............................................................................................... 383
6.4.2 Structure of the Function...........................................................................................383
6.4.3 Logic of the Function.................................................................................................384
6.4.4 Application and Setting Notes....................................................................................384
6.4.5 Settings Menu........................................................................................................... 386
6.4.6 Information List......................................................................................................... 387
6.5 74TC Trip-Circuit Supervision...........................................................................................388
6.5.1 Overview of Functions............................................................................................... 388
6.5.2 Structure of the Function...........................................................................................388
6.5.3 Logic of the Function.................................................................................................389
6.5.4 Application and Setting Notes....................................................................................389
6.5.5 Settings Menu........................................................................................................... 391
6.5.6 Information List......................................................................................................... 392
6.6 81HB2 Inrush Current Detection......................................................................................393
6.6.1 Overview of Functions............................................................................................... 393
6.6.2 Structure of the Function...........................................................................................393
6.6.3 Logic of the Function.................................................................................................393
6.6.4 Application and Setting Notes....................................................................................393
6.6.5 Settings Menu........................................................................................................... 395
6.6.6 IEC 61850 Functional Information Mapping .............................................................. 395
6.6.7 Information List......................................................................................................... 396
7 Control Functions..................................................................................................................................... 397
7.1 Device Control Functions.................................................................................................398
7.1.1 Overview of Functions............................................................................................... 398
7.1.2 Structure of the Function...........................................................................................398
7.1.3 IEC 61850 Functional Information Mapping............................................................... 401
7.2 52 Circuit-Breaker Control............................................................................................... 409
7.2.1 Overview of Function................................................................................................ 409
7.2.2 Structure of the Function...........................................................................................409
7.2.3 Logic of the Function.................................................................................................410
7.2.4 Application and Setting Notes....................................................................................411
7.2.5 Settings Menu........................................................................................................... 415
7.2.6 IEC 61850 Functional Information Mapping .............................................................. 416
Table of Contents
16 Reyrolle 7SR5, Overcurrent Protection Device, Device Manual
C53000-G7040-C014-1, Edition 11.2019

7.2.7 Information List......................................................................................................... 419
7.3 79 Automatic Reclosing...................................................................................................421
7.3.1 Overview of Functions............................................................................................... 421
7.3.2 Structure of the Function...........................................................................................421
7.3.3 Logic of the Function.................................................................................................424
7.3.4 Application and Setting Notes....................................................................................426
7.3.5 Settings Menu........................................................................................................... 433
7.3.6 IEC 61850 Functional Information Mapping .............................................................. 437
7.3.7 Information List......................................................................................................... 439
8 Instruments and Meters........................................................................................................................... 441
8.1 Introduction....................................................................................................................442
8.2 Instruments.................................................................................................................... 443
8.3 Notes..............................................................................................................................450
9 Functional Tests........................................................................................................................................451
9.1 General Notes................................................................................................................. 452
9.2 Hardware Measurement Tests......................................................................................... 454
9.3 Functional Test for the Phase-Rotation Direction..............................................................456
9.4 Direction Test of the Phase Quantities (Current and Voltage Connection) ........................ 457
9.5 Direction Test of the Earth Quantities for Directional Earth-Fault Functions...................... 458
9.6 Circuit‑Breaker Test......................................................................................................... 461
9.7 Primary and Secondary Tests of the Circuit‑Breaker Failure Protection.............................. 462
9.8 Restricted Earth Fault Protection......................................................................................463
9.9 Protection Functional Tests............................................................................................. 464
9.9.1 21LB Load Blinder......................................................................................................464
9.9.2 27 Undervoltage Protection – 3 Phase........................................................................465
9.9.3 27Vx Undervoltage Protection – Vx............................................................................466
9.9.4 32 Power Protection.................................................................................................. 467
9.9.5 37 Undercurrent Protection – Phase...........................................................................468
9.9.6 37G Undercurrent Earth Fault – Measured................................................................. 469
9.9.7 46 Negative Sequence Overcurrent Protection........................................................... 470
9.9.8 46BC Broken Conductor Detection............................................................................. 471
9.9.9 47 Sequence Overvoltage Protection......................................................................... 472
9.9.10 49 Thermal Overload Protection.................................................................................473
9.9.11 50/51 Phase Overcurrent........................................................................................... 474
9.9.12 50AFD Arc Flash Detection.........................................................................................476
9.9.13 50G/51G Measured Earth Fault.................................................................................. 476
9.9.14 50GS/51GS Sensitive Earth Fault................................................................................ 479
9.9.15 50N/51N Calculated Earth Fault................................................................................. 482
9.9.16 50SOTF Switch Onto Fault......................................................................................... 485
9.9.17 51CL Cold Load Overcurrent – Phase..........................................................................485
9.9.18 51V Voltage Dependent Overcurrent – Phase............................................................. 487
9.9.19 55 Power Factor........................................................................................................ 488
9.9.20 59 Overvoltage Protection – 3 Phase..........................................................................489
9.9.21 59N Neutral Voltage Displacement............................................................................ 489
9.9.22 59Vx Overvoltage Protection – Vx.............................................................................. 490
Table of Contents
Reyrolle 7SR5, Overcurrent Protection Device, Device Manual 17
C53000-G7040-C014-1, Edition 11.2019

9.9.23 67 Directional Overcurrent – Phase............................................................................ 491
9.9.24 67G/67GS/67N Directional Earth Fault........................................................................493
9.9.25 78VS Voltage Vector Shift.......................................................................................... 494
9.9.26 81 Frequency Protection – "f>" or "f<"........................................................................ 494
9.9.27 81R Frequency Protection – "df/dt".............................................................................495
9.9.28 87GH Restricted Earth Fault Protection – High-Impedance..........................................496
9.10 Supervision Functions .................................................................................................... 497
9.10.1 50BF Circuit-Breaker Failure Protection – 3 Pole......................................................... 497
9.10.2 60CTS CT Supervision................................................................................................ 497
9.10.3 60VTS VT Supervision................................................................................................ 498
9.10.4 74CC/74TC Close/Trip Circuit Supervision................................................................... 499
9.10.5 81HB2 Inrush Current Detection................................................................................ 499
9.11 Control and Logic Functions............................................................................................ 500
9.11.1 79 Automatic Reclosing............................................................................................. 500
9.11.2 Quick Logic................................................................................................................500
10 Technical Data.......................................................................................................................................... 501
10.1 General Device Data........................................................................................................503
10.1.1 Instrumentation........................................................................................................ 503
10.2 21LB Load Blinder .......................................................................................................... 504
10.2.1 3 Phase Load Blinder (21LB‑3P)..................................................................................504
10.2.2 Single Phase Load Blinder (21LB‑1P)...........................................................................504
10.3 27 Undervoltage Protection – 3-Phase ............................................................................ 506
10.3.1 Common Settings......................................................................................................506
10.3.2 Undervoltage Protection............................................................................................ 506
10.4 27Vx Undervoltage Protection – Vx ................................................................................ 507
10.4.1 Common Settings......................................................................................................507
10.4.2 Undervoltage Protection............................................................................................ 507
10.5 32 Power Protection .......................................................................................................508
10.6 37 Undercurrent Protection – Phase ............................................................................... 509
10.6.1 Common Settings......................................................................................................509
10.6.2 Undercurrent Protection............................................................................................ 509
10.7 37G Undercurrent Earth Fault – Measured.......................................................................510
10.8 46 Negative-Sequence Overcurrent Protection.................................................................511
10.8.1 Definite Time Element (46DT)....................................................................................511
10.8.2 Inverse Time Element (46IT)...................................................................................... 511
10.9 46BC Broken Conductor Detection...................................................................................513
10.9.1 Common Settings......................................................................................................513
10.9.2 Broken Conductor Detection...................................................................................... 513
10.10 47 Sequence Overvoltage Protection............................................................................... 514
10.10.1 Common Settings......................................................................................................514
10.10.2 Overvoltage Protection.............................................................................................. 514
10.11 49 Thermal Overload Protection...................................................................................... 516
10.12 50 Instantaneous Overcurrent – Phase............................................................................ 519
10.13 50AFD Arc Flash Detection.............................................................................................. 520
10.13.1 50GAFD Earth Arc Flash Detection............................................................................. 520
Table of Contents
18 Reyrolle 7SR5, Overcurrent Protection Device, Device Manual
C53000-G7040-C014-1, Edition 11.2019

10.14 50BF Circuit-Breaker Failure Protection – 3 Pole............................................................... 522
10.14.1 50BF Circuit‑Breaker Failure Protection – 3 Pole......................................................... 522
10.14.2 50BF‑I4 Circuit‑Breaker Failure Protection – 3 Pole......................................................523
10.15 50G Instantaneous Earth Fault – Measured......................................................................525
10.16 50GS Instantaneous Sensitive Earth Fault – Measured..................................................... 526
10.17 50N Instantaneous Earth Fault – Calculated.....................................................................527
10.18 51 Time-Delayed Overcurrent – Phase............................................................................. 528
10.19 51G Time-Delayed Earth Fault – Measured...................................................................... 530
10.20 51GS Time-Delayed Sensitive Earth Fault – Measured...................................................... 532
10.21 51N Time-Delayed Earth Fault – Calculated..................................................................... 534
10.22 55 Power Factor..............................................................................................................536
10.22.1 Common Settings......................................................................................................536
10.22.2 Power Factor............................................................................................................. 536
10.23 59 Overvoltage Protection – 3 Phase............................................................................... 537
10.24 59N Neutral Voltage Displacement.................................................................................. 538
10.24.1 Common Settings......................................................................................................538
10.24.2 Definite Time Element (59NDT)................................................................................. 538
10.24.3 Inverse Time Element (59NIT)....................................................................................538
10.25 59Vx Overvoltage Protection – Vx................................................................................... 540
10.26 60CTS‑I CT Supervision – Current Reference.................................................................... 541
10.27 60CTS‑V CT Supervision – Voltage Reference................................................................... 542
10.28 60VTS VT Supervision......................................................................................................543
10.29 67 Directional Overcurrent – Phase................................................................................. 544
10.30 67G Directional Earth Fault – Measured...........................................................................545
10.31 67GS Directional Sensitive Earth Fault – Measured.......................................................... 546
10.32 67N Directional Earth Fault – Calculated..........................................................................547
10.33 78VS Voltage Vector Shift................................................................................................548
10.34 81 Frequency Protection – "f>" or "f<"..............................................................................549
10.35 81HB2 Inrush Current Detection......................................................................................550
10.36 81R Frequency Protection – "df/dt".................................................................................. 551
10.37 87GH Restricted Earth-Fault Protection – High-Impedance............................................... 552
A Appendix.................................................................................................................................................. 553
A.1 Ordering Information...................................................................................................... 554
A.2 Current Transformer Connections....................................................................................555
A.3 Voltage Transformer Connections....................................................................................556
Table of Contents
Reyrolle 7SR5, Overcurrent Protection Device, Device Manual 19
C53000-G7040-C014-1, Edition 11.2019

20 Reyrolle 7SR5, Overcurrent Protection Device, Device Manual
C53000-G7040-C014-1, Edition 11.2019