Siemens 7SC80 User manual

SIPROTEC Compact
Feeder Protection and
Recloser Controller 7SC80
V4.41
Manual
E50417-G1140-C486-A8
Preface
Open Source Software
Table of Contents
Introduction 1
Functions 2
Mounting and Commissioning 3
Technical Data 4
Ordering Information and Accessories A
Terminal Assignments B
Connection Examples C
Current Transformer Requirements D
Default Settings and Protocol-dependent
Functions E
Functions, Settings, Information F
Literature
Glossary
Index

i
i
NOTE
For your own safety, observe the warnings and safety instructions contained in this document, if available.
Disclaimer of Liability
before being published. It is revised at regular intervals,
and any modifications and amendments are included in the
subsequent issues. The content of this document has been
compiled for information purposes only. Although Siemens
AG has made best efforts to keep the document as precise
and up-to-date as possible, Siemens AG shall not assume
any liability for defects and damage which result through
use of the information contained herein.
This content does not form part of a contract or of business
relations; nor does it change these. All obligations of
Siemens AG are stated in the relevant contractual agree-
ments.
Siemens AG reserves the right to revise this document from
time to time.
Document Version Release 4.11.00
Release date: 07.2017
Copyright
Copyright © Siemens AG 2017. 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.
Registered Trademarks
SIPROTEC, SINAUT, SICAM and DIGSI are registered trade-
marks of Siemens AG. Any unauthorized use is illegal. All
other designations in this document can be trademarks
whose use by third parties for their own purposes can
infringe the rights of the owner.

Preface
Purpose of this Manual
This manual describes the functions, operation, installation, and commissioning of devices 7SC80. In partic-
ular, one will find:
•Information regarding the configuration of the scope of the device and a description of the device func-
tions and settings → Chapter 2;
•Instructions for Installation and Commissioning → Chapter 3;
•Compilation of the Technical Data → Chapter 4;
•As well as a compilation of the most significant data for advanced users → Appendix A.
General information with regard to design, configuration, and operation of SIPROTEC 4 devices are set out in
the SIPROTEC 4 System Description /1/ SIPROTEC 4 System Description.
Target Audience
Protection-system engineers, commissioning engineers, persons entrusted with the setting, testing and main-
tenance of selective protection, automation and control equipment, and operating personnel in electrical
installations and power plants.
Applicability of this Manual
This manual applies to: SIPROTEC 4 Feeder Protection and Recloser Controller 7SC80; Firmware-Version V4.41.
Indication of 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 Council Directive 2004/108/EC) and concerning electrical equipment for use within
specified voltage limits (Low-voltage Directive 2006/95 EC).
This conformity is proved by tests conducted by Siemens AG in accordance with the Council
Directive in agreement with the generic standards EN 61000-6-2 and EN 61000-6-4 for EMC
directive, and with the standard EN 60255-27 for the low-voltage directive.
The device has been designed and produced for industrial use.
The product conforms with the international standards of the series IEC 60255 and the
German standard VDE 0435.
Additional Standards IEEE Std C37.90 (see Chapter 4 "Technical Data")
This product is UL-certified according to the Technical Data.
file E194016
[ul-schutz-7sx80-100310, 1, --_--]
SIPROTEC Compact, 7SC80, Manual 3
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Support
Our Customer Support Center provides a 24-hour service.
Phone: [phone]
Fax: [phone]
E-Mail: [email protected]
Training Courses
Inquiries regarding individual training courses should be addressed to our Training Center:
Siemens AG
Siemens Power Academy TD
Humboldtstraße 59
90459 Nürnberg
Germany
Phone: [phone]
Fax: [phone]
E-Mail: [email protected]
Internet: www.siemens.com/poweracademy
Safety Information
This manual does not constitute a complete index of all required safety measures for operation of the equip-
ment (module, device), as special operational conditions may require additional measures. However, it
comprises important information that should be noted for purposes of personal safety as well as avoiding
material damage. Information that is highlighted by means of a warning triangle and according to the degree
of danger, is illustrated as follows.
!
DANGER
Danger indicates that death, severe personal injury or substantial material damage will result if proper
precautions are not taken.
²
!
WARNING
indicates that death, severe personal injury or substantial property damage may result if proper precautions
are not taken.
²
!
CAUTION
indicates that minor personal injury or property damage may result if proper precautions are not taken. This
particularly applies to damage to or within the device itself and consequential damage thereof.
²
Preface
4 SIPROTEC Compact, 7SC80, Manual
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i
i
NOTE
indicates information on the device, handling of the device, or the respective part of the instruction manual
which is important to be noted.
!
WARNING
Qualified Personnel
Commissioning and operation of the equipment (module, device) as set out in this manual may only be
carried out by qualified personnel. Qualified personnel in terms of the technical safety information as set
out in this manual are persons who are authorized to commission, activate, to ground and to designate
devices, systems and electrical circuits in accordance with the safety standards.
Use as prescribed
The operational equipment (device, module) may only be used for such applications as set out in the cata-
logue and the technical description, and only in combination with third-party equipment recommended or
approved by Siemens.
The successful and safe operation of the device is dependent on proper handling, storage, installation,
operation, and maintenance.
When operating an electrical equipment, certain parts of the device are inevitably subject to dangerous
voltage. Severe personal injury or property damage may result if the device is not handled properly.
Before any connections are made, the device must be grounded to the ground terminal.
All circuit components connected to the voltage supply may be subject to dangerous voltage.
Dangerous voltage may be present in the device even after the power supply voltage has been removed
(capacitors can still be charged).
Operational equipment with open circuited current transformer circuits may not be operated.
The limit values as specified in this manual or in the operating instructions may not be exceeded. This
aspect must also be observed during testing and commissioning.
²
Typographic and Symbol Conventions
The following text formats are used when literal information from the device or to the device appear in the
text flow:
Parameter Names
Designators of configuration or function parameters which may appear word-for-word in the display of the
device or on the screen of a personal computer (with operation software DIGSI), are marked in bold letters in
monospace type style. The same applies to titles of menus.
1234A
Parameter addresses have the same character style as parameter names. Parameter addresses contain the
suffix A in the overview tables if the parameter can only be set in DIGSI via the option Display additional
settings.
Parameter Options
Possible settings of text parameters, which may appear word-for-word in the display of the device or on the
screen of a personal computer (with operation software DIGSI), are additionally written in italics. The same
applies to the options of the menus.
Indications
Designators for information, which may be output by the relay or required from other devices or from the
switch gear, are marked in a monospace type style in quotation marks.
Deviations may be permitted in drawings and tables when the type of designator can be obviously derived
from the illustration.
The following symbols are used in drawings:
Preface
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Device-internal logical input signal
Device-internal logical output signal
Internal input signal of an analog quantity
External binary input signal with number (binary input,
input indication)
External binary output signal with number
(example of a value indication)
External binary output signal with number (device indication) used as
input signal
Example of a parameter switch designated FUNCTION with address
1234 and the possible settings ON and OFF
Besides these, graphical symbols are used in accordance with IEC 60617-12 and IEC 60617-13 or similar.
Some of the most frequently used are listed below:
Analog input variable
AND-gate operation of input values
OR-gate operation of input values
Exclusive OR gate (antivalence): output is active, if only one of the
inputs is active
Coincidence gate: output is active, if both inputs are active or inactive
at the same time
Dynamic inputs (edge-triggered) above with positive, below with
negative edge
Formation of one analog output signal from a number of analog input
signals
Limit stage with setting address and parameter designator (name)
Timer (pickup delay T, example adjustable) with setting address and
parameter designator (name)
Timer (dropout delay T, example non-adjustable)
Dynamic triggered pulse timer T (monoflop)
Static memory (SR flipflop) with setting input (S), resetting input (R),
output (Q) and inverted output (Q), setting input dominant
Preface
6 SIPROTEC Compact, 7SC80, Manual
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Static memory (RS-flipflop) with setting input (S), resetting input (R),
output (Q) and inverted output (Q), resetting input dominant
Preface
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8 SIPROTEC Compact, 7SC80, Manual
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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
since 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.
SIPROTEC Compact, 7SC80, Manual 9
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10 SIPROTEC Compact, 7SC80, Manual
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Table of Contents
Preface..........................................................................................................................................................3
Open Source Software..................................................................................................................................9
1 Introduction................................................................................................................................................21
1.1 Overall Operation..............................................................................................................22
1.2 Application Scope............................................................................................................. 25
1.3 Characteristics.................................................................................................................. 27
2 Functions.................................................................................................................................................... 33
2.1 General.............................................................................................................................34
2.1.1 Functional Scope......................................................................................................... 34
2.1.1.1 Description............................................................................................................ 34
2.1.1.2 Setting Notes......................................................................................................... 34
2.1.1.3 Settings................................................................................................................. 36
2.1.2 Device, General Settings.............................................................................................. 39
2.1.2.1 General Device Functions....................................................................................... 39
2.1.2.2 Setting Notes......................................................................................................... 41
2.1.2.3 Settings................................................................................................................. 46
2.1.2.4 Information List..................................................................................................... 47
2.1.3 Power System Data 1...................................................................................................48
2.1.3.1 Description............................................................................................................ 48
2.1.3.2 Setting Notes......................................................................................................... 49
2.1.3.3 Settings................................................................................................................. 57
2.1.3.4 Information List..................................................................................................... 61
2.1.4 Oscillographic Fault Records........................................................................................ 61
2.1.4.1 Description............................................................................................................ 62
2.1.4.2 Setting Notes......................................................................................................... 62
2.1.4.3 Settings................................................................................................................. 63
2.1.4.4 Information List..................................................................................................... 63
2.1.5 Settings Groups........................................................................................................... 63
2.1.5.1 Description............................................................................................................ 63
2.1.5.2 Setting Notes......................................................................................................... 63
2.1.5.3 Settings................................................................................................................. 64
2.1.5.4 Information List..................................................................................................... 64
2.1.6 Power System Data 2...................................................................................................65
2.1.6.1 Description............................................................................................................ 65
2.1.6.2 Setting Notes......................................................................................................... 65
2.1.6.3 Settings................................................................................................................. 68
2.1.6.4 Information List..................................................................................................... 69
2.1.7 EN100-Module............................................................................................................ 69
2.1.7.1 Description............................................................................................................ 69
2.1.7.2 Information List..................................................................................................... 70
2.2 Overcurrent Protection 50, 51, 50N, 51N.......................................................................... 71
2.2.1 General ...................................................................................................................... 71
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2.2.2 Definite Time, High-set Elements 50-3, 50-2, 50N-3, 50N-2..........................................71
2.2.3 Definite Time Overcurrent Elements 50-1, 50N-1......................................................... 72
2.2.4 Inverse Time Overcurrent Elements 51, 51N ................................................................74
2.2.5 Inverse Time Overcurrent Elements 51-1, 51-2, 51-3, 51-4 and 51N-1, 51N-2,
51N-3, 51N-4.............................................................................................................. 78
2.2.6 Inverse Time Overcurrent Protection 51V (Voltage-Controlled/Voltage-Restraint).......... 81
2.2.7 Special Variant Function 50-1, 50N-1 for Service Interlocking....................................... 84
2.2.8 Dynamic Cold Load Pickup Function.............................................................................85
2.2.9 Inrush Restraint .......................................................................................................... 85
2.2.10 Pickup Logic and Tripping Logic................................................................................... 85
2.2.11 Two-phase Overcurrent Protection (Only Non-Directional) ...........................................87
2.2.12 Setting Notes...............................................................................................................87
2.2.13 Settings.......................................................................................................................96
2.2.14 Information List.........................................................................................................107
2.3 Directional Overcurrent Protection 67, 67N..................................................................... 111
2.3.1 General..................................................................................................................... 111
2.3.2 Directional Definite Time High-Current Elements 67-2, 67-3, 67N-2 and 67N-3...........112
2.3.3 Definite Time, Directional Time Overcurrent Elements 67-1, 67N-1.............................113
2.3.4 Inverse Time, Directional Time Overcurrent Elements 67-TOC, 67N-TOC..................... 115
2.3.5 Inverse Time, Directional Time Overcurrent Elements 67-TOC-1, 67-TOC-2, 67-
TOC-3, 67-TOC-4 and 67N-TOC-1, 67N-TOC-2, 67N-TOC-3, 67N-TOC-4.......................117
2.3.6 Interaction with Voltage Monitoring ..........................................................................121
2.3.7 Dynamic Cold Load Pickup Function...........................................................................121
2.3.8 Inrush Restraint......................................................................................................... 121
2.3.9 Determination of Direction........................................................................................ 121
2.3.10 Setting Notes.............................................................................................................125
2.3.11 Settings.....................................................................................................................134
2.3.12 Information List.........................................................................................................147
2.4 Dynamic Cold Load Pickup...............................................................................................151
2.4.1 Description................................................................................................................151
2.4.2 Setting Notes.............................................................................................................153
2.4.3 Settings.....................................................................................................................157
2.4.4 Information List.........................................................................................................165
2.5 Single-Phase Overcurrent Protection................................................................................166
2.5.1 Description................................................................................................................166
2.5.2 High-Impedance Ground Fault Unit Protection........................................................... 167
2.5.3 Tank Leakage Protection............................................................................................169
2.5.4 Setting Notes.............................................................................................................170
2.5.5 Settings.....................................................................................................................175
2.5.6 Information List.........................................................................................................186
2.6 Voltage Protection 27, 59................................................................................................187
2.6.1 Measurement Principle.............................................................................................. 187
2.6.2 Overvoltage Protection 59......................................................................................... 189
2.6.3 Undervoltage Protection 27....................................................................................... 189
2.6.4 Displacement Voltage Protection............................................................................... 192
2.6.5 Setting Notes.............................................................................................................194
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2.6.6 Settings.....................................................................................................................198
2.6.7 Information List.........................................................................................................199
2.7 47 Negative Phase Sequence Overvoltage....................................................................... 202
2.7.1 Description................................................................................................................202
2.7.2 Setting Notes.............................................................................................................202
2.7.3 Settings.....................................................................................................................203
2.7.4 Information List.........................................................................................................203
2.8 27/59 Under/Over Voltage for Vx.....................................................................................204
2.8.1 Description................................................................................................................204
2.8.2 Setting Notes.............................................................................................................205
2.8.3 Settings.....................................................................................................................206
2.8.4 Information List.........................................................................................................207
2.9 Negative Sequence Protection 46....................................................................................208
2.9.1 Definite Time characteristic .......................................................................................208
2.9.2 Inverse Time characteristic 46-TOC............................................................................ 208
2.9.3 Setting Notes.............................................................................................................211
2.9.4 Settings.....................................................................................................................213
2.9.5 Information List.........................................................................................................214
2.10 Frequency Protection 81 O/U...........................................................................................215
2.10.1 Description................................................................................................................215
2.10.2 Setting Notes.............................................................................................................216
2.10.3 Settings.....................................................................................................................217
2.10.4 Information List.........................................................................................................218
2.11 Thermal Overload Protection 49...................................................................................... 219
2.11.1 Monitoring of the thermal condition, for example at transformers..............................219
2.11.2 Setting Notes.............................................................................................................221
2.11.3 Settings.....................................................................................................................223
2.11.4 Information List.........................................................................................................224
2.12 Monitoring Functions......................................................................................................225
2.12.1 Measurement Supervision......................................................................................... 225
2.12.1.1 General................................................................................................................225
2.12.1.2 Hardware Monitoring .......................................................................................... 225
2.12.1.3 Software Monitoring ........................................................................................... 227
2.12.1.4 Monitoring of the Transformer Circuits................................................................. 227
2.12.1.5 Broken Conductor Detection.................................................................................229
2.12.1.6 Inrush-Current Detection .....................................................................................231
2.12.1.7 Current and Voltage Transformer Monitoring........................................................234
2.12.1.8 Setting Notes....................................................................................................... 236
2.12.1.9 Settings............................................................................................................... 240
2.12.1.10 Information List................................................................................................... 241
2.12.2 Trip Circuit Supervision 74TC..................................................................................... 242
2.12.2.1 Description.......................................................................................................... 243
2.12.2.2 Setting Notes....................................................................................................... 245
2.12.2.3 Settings............................................................................................................... 246
2.12.2.4 Information List................................................................................................... 246
2.12.3 Malfunction Responses of the Monitoring Functions.................................................. 246
2.12.3.1 Description.......................................................................................................... 246
2.13 Ground Fault Protection 64, 67N(s), 50N(s), 51N(s).........................................................248
2.13.1 Ground Fault Detection for cos-φ–/sin-φ Measurement (Standard Method)................ 248
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2.13.2 Ground Fault Detection for V0/I0-φ Measurement...................................................... 254
2.13.3 Ground Fault Location............................................................................................... 258
2.13.4 Setting Notes.............................................................................................................259
2.13.5 Settings.....................................................................................................................265
2.13.6 Information List.........................................................................................................267
2.14 Automatic Reclosing System 79.......................................................................................269
2.14.1 Program Execution.................................................................................................... 269
2.14.2 Blocking.................................................................................................................... 273
2.14.3 Status Recognition and Monitoring of the Circuit Breaker........................................... 274
2.14.4 Controlling Protection Elements.................................................................................275
2.14.5 Zone Sequencing / Fuse Saving Scheme..................................................................... 277
2.14.6 Setting Notes.............................................................................................................278
2.14.7 Settings.....................................................................................................................283
2.14.8 Information List.........................................................................................................302
2.15 Sectionalizer Function.....................................................................................................304
2.15.1 Functional Description...............................................................................................304
2.15.2 Setting Notes.............................................................................................................306
2.15.3 Settings.....................................................................................................................307
2.15.4 Information List.........................................................................................................308
2.16 Triple Single Mode.......................................................................................................... 309
2.16.1 Overview...................................................................................................................309
2.16.2 Setting Notes.............................................................................................................309
2.16.3 Settings.....................................................................................................................311
2.16.4 Information List.........................................................................................................311
2.17 Fault Locator...................................................................................................................314
2.17.1 Description................................................................................................................314
2.17.2 Setting Notes.............................................................................................................315
2.17.3 Settings.....................................................................................................................316
2.17.4 Information List.........................................................................................................316
2.18 Breaker Failure Protection 50BF.......................................................................................317
2.18.1 Description................................................................................................................317
2.18.2 Setting Notes.............................................................................................................320
2.18.3 Settings.....................................................................................................................321
2.18.4 Information List.........................................................................................................322
2.19 Flexible Protection Functions...........................................................................................323
2.19.1 Description................................................................................................................323
2.19.2 Setting Notes.............................................................................................................329
2.19.3 Settings.....................................................................................................................333
2.19.4 Information List.........................................................................................................335
2.20 Synchrocheck................................................................................................................. 337
2.20.1 General..................................................................................................................... 337
2.20.2 Functional Sequence................................................................................................. 338
2.20.3 De-energized Switching.............................................................................................340
2.20.4 Direct Command / Blocking........................................................................................340
2.20.5 Interaction with Control, Automatic Reclosing and External Control............................341
2.20.6 Setting Notes.............................................................................................................342
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2.20.7 Settings.....................................................................................................................345
2.20.8 Information List.........................................................................................................346
2.21 Capacitor Control............................................................................................................ 348
2.21.1 Modes of Operation...................................................................................................348
2.21.2 Setting Notes.............................................................................................................348
2.21.3 Settings.....................................................................................................................350
2.21.4 Information List.........................................................................................................350
2.22 Tap Changer................................................................................................................... 351
2.22.1 General..................................................................................................................... 351
2.22.2 Setting Notes.............................................................................................................351
2.22.3 Settings.....................................................................................................................353
2.22.4 Information List.........................................................................................................354
2.23 Recloser Capacitor Test....................................................................................................355
2.23.1 General..................................................................................................................... 355
2.23.2 Setting Notes.............................................................................................................357
2.23.3 Settings.....................................................................................................................357
2.23.4 Information List.........................................................................................................357
2.24 Phase Rotation................................................................................................................ 358
2.24.1 Description................................................................................................................358
2.24.2 Setting Notes.............................................................................................................358
2.25 Function Logic................................................................................................................ 359
2.25.1 Pickup Logic of the Entire Device................................................................................359
2.25.2 Tripping Logic of the Entire Device.............................................................................359
2.26 Auxiliary Functions..........................................................................................................361
2.26.1 Message Processing...................................................................................................361
2.26.1.1 LEDs and Binary Outputs (Output Relays)..............................................................361
2.26.1.2 Information via Display Panel or PC.......................................................................361
2.26.1.3 Information to a Substation Control Center...........................................................362
2.26.2 Statistics....................................................................................................................363
2.26.2.1 Description.......................................................................................................... 363
2.26.2.2 Circuit Breaker Maintenance.................................................................................363
2.26.2.3 Setting Notes....................................................................................................... 369
2.26.2.4 Information List................................................................................................... 371
2.26.3 Measurement............................................................................................................372
2.26.3.1 Display of Measured Values.................................................................................. 372
2.26.3.2 Transmitting Measured Values............................................................................. 373
2.26.3.3 Information List................................................................................................... 374
2.26.4 Average Measurements............................................................................................. 376
2.26.4.1 Description.......................................................................................................... 376
2.26.4.2 Setting Notes....................................................................................................... 376
2.26.4.3 Settings............................................................................................................... 376
2.26.4.4 Information List................................................................................................... 376
2.26.5 Min/Max Measurement Setup.................................................................................... 377
2.26.5.1 Description.......................................................................................................... 377
2.26.5.2 Setting Notes....................................................................................................... 377
2.26.5.3 Settings............................................................................................................... 377
2.26.5.4 Information List................................................................................................... 377
2.26.6 Set Points for Statistic................................................................................................ 379
2.26.6.1 Description.......................................................................................................... 379
2.26.6.2 Setting Notes....................................................................................................... 380
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2.26.6.3 Information List................................................................................................... 380
2.26.7 Energy Metering........................................................................................................380
2.26.7.1 Description.......................................................................................................... 380
2.26.7.2 Setting Notes....................................................................................................... 380
2.26.7.3 Settings............................................................................................................... 380
2.26.7.4 Information List................................................................................................... 380
2.26.8 Commissioning Aids.................................................................................................. 381
2.26.8.1 Description.......................................................................................................... 381
2.27 Breaker Control...............................................................................................................383
2.27.1 Control Device...........................................................................................................383
2.27.1.1 Description.......................................................................................................... 383
2.27.1.2 Information List................................................................................................... 384
2.27.2 Types of Commands.................................................................................................. 384
2.27.2.1 Description.......................................................................................................... 384
2.27.3 Command Sequence..................................................................................................384
2.27.3.1 Description.......................................................................................................... 385
2.27.4 Interlocking............................................................................................................... 385
2.27.4.1 Description.......................................................................................................... 385
2.27.5 Command Logging.................................................................................................... 394
2.27.5.1 Description.......................................................................................................... 394
2.28 Notes on Device Operation..............................................................................................395
2.28.1 Web Monitor............................................................................................................. 395
2.28.2 Operation Panel of the Device....................................................................................402
2.29 Recloser Setting Summary...............................................................................................403
2.29.1 Description................................................................................................................403
2.29.2 Setting Notes.............................................................................................................403
2.30 Additional Applications with 6 Voltage Inputs..................................................................425
2.30.1 General..................................................................................................................... 425
2.30.1.1 Description.......................................................................................................... 425
2.30.1.2 Setting Notes....................................................................................................... 425
2.30.1.3 Settings............................................................................................................... 425
2.30.2 Voltage Protection 27, 59 of Side 2............................................................................ 427
2.30.2.1 Overview Voltage Protection of Side 2.................................................................. 427
2.30.2.2 Measurement Principle.........................................................................................427
2.30.2.3 Overvoltage Protection 59 of Side 2......................................................................428
2.30.2.4 Undervoltage Protection 27 of Side 2................................................................... 429
2.30.2.5 Setting Notes....................................................................................................... 432
2.30.2.6 Settings............................................................................................................... 436
2.30.2.7 Information List................................................................................................... 437
2.30.3 Frequency Protection 81 O/U of Side 2....................................................................... 438
2.30.3.1 Description.......................................................................................................... 438
2.30.3.2 Setting Notes....................................................................................................... 440
2.30.3.3 Settings............................................................................................................... 441
2.30.3.4 Information List................................................................................................... 442
2.30.4 Voltage-Transformer Supervision of Side 2.................................................................442
2.30.4.1 Description.......................................................................................................... 442
2.30.4.2 Setting Notes....................................................................................................... 445
2.30.4.3 Settings............................................................................................................... 446
2.30.4.4 Information List................................................................................................... 446
3 Mounting and Commissioning................................................................................................................. 449
3.1 Mounting and Connections............................................................................................. 450
3.1.1 Configuration Information......................................................................................... 450
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3.1.2 Hardware Modifications.............................................................................................453
3.1.2.1 Disassembly.........................................................................................................453
3.1.2.2 Current Terminal Connections.............................................................................. 459
3.1.2.3 Process Terminal Connections.............................................................................. 460
3.1.2.4 Interface Modules................................................................................................ 460
3.1.2.5 Reassembly..........................................................................................................461
3.1.3 Installation................................................................................................................ 461
3.1.3.1 General................................................................................................................461
3.1.3.2 HMI (Human-Machine Interface) Optional............................................................ 463
3.2 Checking Connections.....................................................................................................471
3.2.1 Checking the Data Connections of the Interfaces........................................................471
3.2.2 Checking the System Connections............................................................................. 475
3.3 Commissioning............................................................................................................... 477
3.3.1 Test Mode and Transmission Block.............................................................................478
3.3.2 Testing the System Interface (at Port F)......................................................................478
3.3.3 Communication Module Configuration...................................................................... 480
3.3.4 Checking the Status of Binary Inputs and Outputs...................................................... 483
3.3.5 Tests for Breaker Failure Protection............................................................................ 485
3.3.6 Testing User-Defined Functions..................................................................................487
3.3.7 Current, Voltage, and Phase Rotation Testing............................................................. 487
3.3.8 Test for High Impedance Protection........................................................................... 488
3.3.9 Testing the Reverse Interlocking Scheme....................................................................488
3.3.10 Direction Check with Load Current.............................................................................489
3.3.11 Polarity Check for Voltage Input Vx............................................................................ 490
3.3.12 Ground Fault Check................................................................................................... 491
3.3.13 Polarity Check for Current Input ΙN..............................................................................492
3.3.14 Switching Test for Configured Equipment.................................................................. 495
3.3.15 Creating A Test Fault Record...................................................................................... 495
3.3.16 Password Security .....................................................................................................496
3.4 Final Preparation of the Device........................................................................................498
4 Technical Data.......................................................................................................................................... 499
4.1 General Device Data........................................................................................................500
4.1.1 Analog Inputs............................................................................................................500
4.1.2 Auxiliary Voltage....................................................................................................... 501
4.1.3 Binary Inputs and Outputs......................................................................................... 502
4.1.4 Communication Interfaces.........................................................................................503
4.1.5 Electrical Tests...........................................................................................................504
4.1.6 Mechanical Tests....................................................................................................... 506
4.1.7 Climatic Stress Tests.................................................................................................. 506
4.1.8 Service Conditions..................................................................................................... 507
4.1.9 Constructive Design...................................................................................................507
4.1.10 UL certification conditions......................................................................................... 508
4.2 Definite-Time Overcurrent Protection 50, 50N................................................................. 509
4.3 Inverse-Time Overcurrent Protection............................................................................... 511
4.4 Directional Overcurrent Protection 67, 67N..................................................................... 527
4.5 Inrush Restraint...............................................................................................................529
4.6 Dynamic Cold Load Pickup...............................................................................................530
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4.7 Single-Phase Overcurrent Protection................................................................................531
4.8 Voltage Protection 27, 59................................................................................................532
4.9 Negative Phase Sequence Overvoltage Protection............................................................534
4.10 Voltage Protection for Vx.................................................................................................535
4.11 Negative Sequence Protection 46-1, 46-2 (Definite Time Characteristic)...........................536
4.12 Negative Sequence Protection 46-TOC (Inverse Time Characteristic)................................ 537
4.13 Frequency Protection 81................................................................................................. 543
4.14 Thermal Overload Protection...........................................................................................544
4.15 Ground Fault Detection (Sensitive/Insensitive).................................................................546
4.16 Automatic Reclosing Function ........................................................................................ 553
4.17 Sectionalizer................................................................................................................... 554
4.18 Fault Locator...................................................................................................................556
4.19 Breaker Failure Protection 50BF.......................................................................................557
4.20 Flexible Protection Functions...........................................................................................558
4.21 Synchronization Function................................................................................................561
4.22 User-defined Functions (CFC).......................................................................................... 563
4.23 Additional Functions....................................................................................................... 572
4.24 Switching Device Control................................................................................................ 576
4.25 Additional Applications with 6 Voltage Inputs..................................................................577
4.25.1 Voltage Protection 27, 59 of Side 2............................................................................ 577
4.25.2 Frequency Protection 81 of Side 2..............................................................................578
4.26 Dimensions.....................................................................................................................580
4.26.1 Feeder Protection and Recloser Controller 7SC80....................................................... 580
4.26.2 HMI...........................................................................................................................581
4.26.3 Varistor..................................................................................................................... 581
A Ordering Information and Accessories.....................................................................................................583
A.1 Ordering Information 7SC802 ........................................................................................ 584
A.2 Ordering Information 7SC803 ........................................................................................ 587
A.3 Accessories..................................................................................................................... 590
B Terminal Assignments..............................................................................................................................591
B.1 7SC80 — Housing for cabinet flush mounting and cabinet surface mounting .................. 592
C Connection Examples............................................................................................................................... 599
C.1 Connection Examples for Current and Voltage Transformers............................................600
D Current Transformer Requirements......................................................................................................... 605
D.1 Accuracy limiting factors................................................................................................. 606
D.2 Class conversion............................................................................................................. 607
E Default Settings and Protocol-dependent Functions............................................................................... 609
E.1 LEDs............................................................................................................................... 610
E.2 Binary Input.................................................................................................................... 611
E.3 Binary Output................................................................................................................. 612
E.4 Function Keys................................................................................................................. 613
E.5 Default Display................................................................................................................614
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E.6 Protocol-dependent Functions.........................................................................................616
F Functions, Settings, Information..............................................................................................................617
F.1 Functional Scope............................................................................................................ 618
F.2 Settings.......................................................................................................................... 621
F.3 Information List.............................................................................................................. 694
F.4 Group Alarms..................................................................................................................759
F.5 Measured Values.............................................................................................................761
Literature.................................................................................................................................................. 767
Glossary.................................................................................................................................................... 769
Index.........................................................................................................................................................779
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20 SIPROTEC Compact, 7SC80, Manual
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