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Relion650 series

Generator protection REG650Application Manual

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Document ID: 1MRK 502 042-UENIssued: June 2012

Revision: -Product version: 1.2

Copyright 2012 ABB. All rights reserved

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CopyrightThis document and parts thereof must not be reproduced or copied without written

permission from ABB, and the contents thereof must not be imparted to a thirdparty, nor used for any unauthorized purpose.

The software and hardware described in this document is furnished under a licenseand may be used or disclosed only in accordance with the terms of such license.

TrademarksABB and Relion are registered trademarks of the ABB Group. All other brand or

product names mentioned in this document may be trademarks or registeredtrademarks of their respective holders.

WarrantyPlease inquire about the terms of warranty from your nearest ABB representative.

ABB AB

Substation Automation Products

SE-721 59 Vsters

Sweden

Telephone: +46 (0) 21 32 50 00

Facsimile: +46 (0) 21 14 69 18

http://www.abb.com/substationautomation
http://http//WWW.ABB.COM/SUBSTATIONAUTOMATION

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DisclaimerThe data, examples and diagrams in this manual are included solely for the concept

or product description and are not to be deemed as a statement of guaranteedproperties. All persons responsible for applying the equipment addressed in thismanual must satisfy themselves that each intended application is suitable andacceptable, including that any applicable safety or other operational requirementsare complied with. In particular, any risks in applications where a system failure and/or product failure would create a risk for harm to property or persons (including butnot limited to personal injuries or death) shall be the sole responsibility of the

person or entity applying the equipment, and those so responsible are herebyrequested to ensure that all measures are taken to exclude or mitigate such risks.

This document has been carefully checked by ABB but deviations cannot becompletely ruled out. In case any errors are detected, the reader is kindly requestedto notify the manufacturer. Other than under explicit contractual commitments, inno event shall ABB be responsible or liable for any loss or damage resulting fromthe use of this manual or the application of the equipment.

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ConformityThis product complies with the directive of the Council of the European

Communities on the approximation of the laws of the Member States relating toelectromagnetic compatibility (EMC Directive 2004/108/EC) and concerningelectrical equipment for use within specified voltage limits (Low-voltage directive2006/95/EC). This conformity is the result of tests conducted by ABB inaccordance with the product standards EN 50263 and EN 60255-26 for the EMCdirective, and with the product standards EN 60255-1 and EN 60255-27 for the lowvoltage directive. The product is designed in accordance with the internationalstandards of the IEC 60255 series.

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Table of contentsSection 1 Introduction.....................................................................15

This manual......................................................................................15

Intended audience............................................................................1 5

Product documentation.................................................................. ...16

Product documentation set..........................................................16

Document revision history...........................................................17

Related documents......................................................................17

Symbols and conventions.................................................................18

Symbols.......................................................................................18

Document conventions................................................................19

Section 2 Application......................................................................21REG650 application..........................................................................21

Available functions............................................................................24

Main protection functions.............................................................24

Back-up protection functions.......................................................24

Control and monitoring functions.................................................25

Communication............................................................................28

Basic IED functions.....................................................................29

REG650 application examples.........................................................30Adaptation to different applications.............................................30

Single generator connected via a unit transformer to a

High Voltage (HV) system......................................................31

Single generator, including the auxiliary transformer,

connected via an unit transformer to a High Voltage

(HV) system............................................................................32

Generating unit, including both generator and unit

transformer, connected to a solidly earthed High

Voltage (HV) system..............................................................33

Generating unit, including both generator and unit

transformer, connected to a high impedance earthed

High Voltage (HV) system......................................................34

Functionality table..................................................................35

Single generator/transformer unit, connected to a solidly

earthed High Voltage (HV) system, with redundant

protection................................................................................38

Single generator/transformer unit, connected to a high

impedance earthed High Voltage (HV) system, with

redundant protection..............................................................39

Two generators having one three-winding unit


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Voltage (HV) system, with redundant protection with unit

differential protection including the generators.......................40

Two generators having one three-winding unit


Voltage (HV) system, with redundant protection with unit

transformer differential protection...........................................41

Functionality table..................................................................42

Section 3 REG650 setting examples..............................................45Calculating general settings for analogue TRM inputs 4I 1I 5U... ... .47

Calculating general settings for analogue AIM inputs 6I 4U.............48

Preprocessing blocks SMAI..............................................................49

Calculating settings for global base values for setting function

GBASVAL.........................................................................................50

Calculating settings for generator differential protectionGENPDIF .........................................................................................51

Calculating settings for underimpedance protection for

generators and transformers ZGCPDIS ..........................................53

Calculating settings for zone 1....................................................53



Calculating settings for the Load encroachment function............55

Calculating settings for out-of-step protection OOSPPAM ..............56

Calculating settings for loss of excitation LEXPDIS ........................61

Negative-sequence time overcurrent protection for machinesNS2PTOC ........................................................................................65

Calculating settings for four step phase overcurrent protection

3-phase output OC4PTOC ..............................................................65

Calculating settings for generator phase overcurrent

protection.....................................................................................65

Calculating settings for step 1................................................65


Calculating settings for auxiliary transformer phase

overcurrent protection..................................................................66



100% Stator earth fault protection, 3rd harmonic based

STEFPHIZ .......................................................................................68

Stator earth fault protection (neutral point voltage)..........................70

Section 4 Analog inputs..................................................................71Introduction.......................................................................................71

Setting guidelines.............................................................................71

Setting of the phase reference channel.......................................71

Setting of current channels..........................................................72

Example 1..............................................................................72

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Example 2..............................................................................73

Examples on how to connect, configure and set CT

inputs for most commonly used CT connections....................74

Example on how to connect a star connected three-phase CT set to the IED.........................................................75

Example how to connect single-phase CT to the IED............77

Setting of voltage channels.........................................................79

Example.................................................................................79

Examples how to connect, configure and set VT inputs

for most commonly used VT connections..............................79

Examples onhow to connect a three phase-to-earth

connected VT to the IED........................................................80

Example how to connect the open delta VT to the IED

for low impedance earthed or solidly earthed power

systems..................................................................................81

Example on how to connect a neutral point VT to the

IED.........................................................................................83

Section 5 Local human-machine interface.....................................87Local HMI.........................................................................................87

Display.........................................................................................87

LEDs............................................................................................89

Keypad........................................................................................89

Local HMI functionality................................................................90

Protection and alarm indication..............................................90Parameter management ........................................................92

Front communication..............................................................92

Single-line diagram.................................................................93

Section 6 Differential protection.....................................................95Transformer differential protection T2WPDIF and T3WPDIF ..........95

Identification................................................................................95

Application...................................................................................95

Setting guidelines........................................................................96

Inrush restraint methods.........................................................96

Overexcitation restraint method.............................................96

Cross-blocking between phases............................................97

Restrained and unrestrained differential protection................97

Elimination of zero sequence currents...................................98

Internal/External fault discriminator........................................99

Differential current alarm......................................................101

Switch onto fault feature.......................................................101

Setting example.........................................................................101

CT Connections....................................................................101

1Ph High impedance differential protection HZPDIF .....................103

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Identification..............................................................................103

Application.................................................................................103

The basics of the high impedance principle.........................104

Connection examples for high impedance differentialprotection...................................................................................110

Connections for 1Ph restricted earth fault and high

impedance differential protection.........................................110

Setting guidelines......................................................................111

Configuration........................................................................111

Settings of protection function..............................................111

Restricted earth fault protection REFPDIF...........................112

Alarm level operation............................................................114

Generator differential protection GENPDIF ...................................115

Identification..............................................................................115

Application.................................................................................116


General settings...................................................................117

Percentage restrained differential operation........................118

Negative sequence internal/external fault discriminator

feature..................................................................................120

Other additional options.......................................................121

Open CT detection...............................................................122

Section 7 Impedance protection...................................................125Underimpedance protection for generators and transformers

ZGCPDIS .......................................................................................125

Identification..............................................................................125

Application.................................................................................125


Loss of excitation LEXPDIS............................................................127

Identification..............................................................................127

Application.................................................................................127


Out-of-step protection OOSPPAM .................................................136

Identification..............................................................................136

Application.................................................................................136


Load enchroachment LEPDIS........................................................142

Identification..............................................................................142

Application.................................................................................142


Resistivereach with load encroachment characteristic........142

Section 8 Current protection.........................................................145

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Four step phase overcurrent protection 3-phase output

OC4PTOC .....................................................................................145

Identification..............................................................................145

Application.................................................................................145Setting guidelines......................................................................146

Settings for steps 1 to 4 .......................................................147

2nd harmonic restrain...........................................................149

Four step residual overcurrent protection, zero, negative

sequence direction EF4PTOC .......................................................155

Identification..............................................................................155

Application.................................................................................155


Settings for steps 1 and 4 ....................................................157

Common settings for all steps..............................................159

2nd harmonic restrain...........................................................160

Sensitive directional residual overcurrent and power protection

SDEPSDE .....................................................................................161

Identification.............................................................................. 161

Application.................................................................................161


Thermal overload protection, two time constants TRPTTR ...........169

Identification..............................................................................169

Application.................................................................................169

Setting guideline........................................................................170

Breaker failure protection 3-phase activation and output

CCRBRF ........................................................................................172

Identification..............................................................................17 3

Application.................................................................................173


Pole discordance protection CCRPLD ..........................................176

Identification..............................................................................176

Application.................................................................................176


Directional over-/under-power protection GOPPDOP/

GUPPDUP......................................................................................178

Application.................................................................................178

Directional overpower protection GOPPDOP ...........................180

Identification.........................................................................180

Setting guidelines.................................................................180

Directional underpower protection GUPPDUP..........................184

Identification.........................................................................184

Setting guidelines.................................................................184

Accidental energizing protection for synchronous generator

AEGGAPC......................................................................................187

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Identification..............................................................................187

Application.................................................................................187


Negative-sequence time overcurrent protection for machinesNS2PTOC ......................................................................................188

Identification..............................................................................188

Application.................................................................................189

Features...............................................................................189

Generator continuous unbalance current capability.............190


Operate time characteristic..................................................192

Start sensitivity.....................................................................193

Alarm function......................................................................193

Voltage-restrained time overcurrent protection VR2PVOC............194Identification..............................................................................194

Application.................................................................................194

Base quantities.....................................................................194

Application possibilities........................................................195

Under-voltage seal-in...........................................................195


Voltage restrained overcurrent protection for generator

and step-up transformer.......................................................196

Overcurrent protection with undervoltage seal-in.................196

Section 9 Voltage protection........................................................199Two step undervoltage protection UV2PTUV ................................199

Identification..............................................................................199

Application.................................................................................199


Equipment protection, such as for motors and

generators............................................................................200

Disconnected equipment detection......................................200

Power supply quality ...........................................................200

Voltage instability mitigation.................................................200

Backup protection for power system faults...........................200

Settings for Two step undervoltage protection.....................201

Two step overvoltage protection OV2PTOV ..................................202

Identification..............................................................................202

Application.................................................................................202


Two step residual overvoltage protection ROV2PTOV .................205

Identification..............................................................................205

Application.................................................................................205


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Equipment protection, such as for motors, generators,

reactors and transformers....................................................206

Stator earth-fault protection based on residual voltage

measurement.......................................................................206

Power supply quality............................................................210

High impedance earthed systems........................................210

Direct earthed system..........................................................211

Settings for Two step residual overvoltage protection..........212

Overexcitation protection OEXPVPH ............................................213

Identification..............................................................................213

Application.................................................................................214


Recommendations for input and output signals...................215

Settings................................................................................215

100% Statorearth fault protection, 3rd harmonic based

STEFPHIZ......................................................................................216

Identification..............................................................................216

Application.................................................................................216


Rotor earth fault protection.............................................................222

Section 10 Frequency protection....................................................223Underfrequencyprotection SAPTUF .............................................223

Identification..............................................................................223

Application.................................................................................223


Overfrequency protection SAPTOF ...............................................224

Identification..............................................................................224

Application.................................................................................224


Rate-of-change frequency protection SAPFRC .............................225

Identification..............................................................................226

Application.................................................................................226


Section 11 Secondarysystem supervision.....................................229Fuse failure supervision SDDRFUF...............................................229

Identification..............................................................................229

Application.................................................................................229


General.................................................................................230

Setting of common parameters............................................230

Negative sequence based....................................................231

Zero sequence based...........................................................232

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Delta U and delta I ...............................................................232

Dead line detection...............................................................233

Breaker close/trip circuit monitoring TCSSCBR.............................233

Identification..............................................................................233Application.................................................................................233

Section 12 Control..........................................................................239Synchrocheck, energizing check, and synchronizing

SESRSYN......................................................................................239

Identification..............................................................................239

Application.................................................................................239

Synchronizing.......................................................................239

Synchrocheck.......................................................................240

Energizing check..................................................................242

Voltage selection..................................................................243

External fuse failure..............................................................244

Application examples.................................................................245

Singlecircuit breaker with single busbar..............................245

Single circuit breaker with double busbar, external

voltage selection...................................................................245

Single circuit breaker with double busbar, internal

voltage selection...................................................................246

Double circuit breaker..........................................................247

1 1/2 circuit breaker..............................................................248


Apparatus control ..........................................................................255

Identification..............................................................................255

Application.................................................................................255

Interaction between modules.....................................................258


Bay control (QCBAY)...........................................................260

Logic rotating switch for function selection and LHMI

presentation SLGGIO.....................................................................2 60

Identification..............................................................................260

Application.................................................................................260


Selector mini switch VSGGIO.........................................................261

Identification..............................................................................261

Application.................................................................................261


IEC61850 generic communication I/O functions DPGGIO.............262

Identification..............................................................................262

Application.................................................................................262


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Single point generic control 8 signals SPC8GGIO.........................263

Identification..............................................................................263

Application.................................................................................263

Setting guidelines......................................................................263Automation bits AUTOBITS............................................................264

Identification..............................................................................264

Application.................................................................................264


Section 13 Logic.............................................................................265Tripping logic common 3-phase output SMPPTRC .......................265

Identification..............................................................................265

Application.................................................................................265

Three-phase tripping ...........................................................265

Lock-out................................................................................266

Blocking of the function block...............................................266


Trip matrix logic TMAGGIO............................................................267

Identification..............................................................................267

Application.................................................................................267


Configurable logic blocks................................................................268

Identification..............................................................................268

Application.................................................................................269Configuration........................................................................269

Fixed signals FXDSIGN..................................................................270

Identification..............................................................................270

Application.................................................................................270

Boolean 16 to integer conversion B16I...........................................271

Identification..............................................................................271

Application.................................................................................271


Boolean 16 to integer conversion with logic node

representation B16IFCVI................................................................272

Identification..............................................................................272

Application.................................................................................272


Integer to boolean 16 conversion IB16A........................................272

Identification..............................................................................272

Application.................................................................................273


Integer to boolean 16 conversion with logic node

representation IB16FCVB...............................................................273

Identification..............................................................................273

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Application.................................................................................273

Settings......................................................................................273

Section 14 Monitoring.....................................................................275IEC61850 generic communication I/O functions SPGGIO.............275

Identification..............................................................................275

Application.................................................................................275


IEC61850 generic communication I/O functions 16 inputs

SP16GGIO.....................................................................................275

Identification..............................................................................275

Application.................................................................................275


IEC61850 generic communication I/O functions MVGGIO.............276

Identification..............................................................................276

Application.................................................................................276


Measurements................................................................................277

Identification..............................................................................277

Application.................................................................................277


Setting examples.......................................................................281

Measurement function application for a 400 kV OHL...........282

Measurement function application for a generator...............284

Event counter CNTGGIO................................................................286

Identification..............................................................................286

Application.................................................................................286


Disturbance report .........................................................................287

Identification..............................................................................287

Application.................................................................................287


Binary input signals..............................................................291

Analog input signals.............................................................291

Sub-function parameters......................................................292

Consideration.......................................................................292

Measured value expander block MVEXP.......................................293

Identification..............................................................................293

Application.................................................................................293


Station battery supervision SPVNZBAT.........................................294

Identification..............................................................................294

Application.................................................................................294

Insulation gas monitoring function SSIMG.....................................295

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Identification..............................................................................295

Application.................................................................................295

Insulation liquid monitoring function SSIML....................................295


Circuit breaker condition monitoring SSCBR..................................295

Identification..............................................................................295

Application.................................................................................296

Section 15 Metering.......................................................................299Pulse counter PCGGIO..................................................................299

Identification..............................................................................299

Application.................................................................................299


Energy calculation and demand handling EPTMMTR....................300

Identification..............................................................................300

Application.................................................................................300


Section 16 Station communication.................................................303IEC61850-8-1 communication protocol .........................................303

Identification..............................................................................303

Application.................................................................................303

Horizontal communication via GOOSE................................305


DNP3 protocol................................................................................307

IEC 60870-5-103 communication protocol.....................................308

Section 17 Basic IED functions......................................................309Self supervision with internal event list ..........................................309

Identification..............................................................................309

Application.................................................................................309

Time synchronization......................................................................310

Identification..............................................................................310

Application.................................................................................310Setting guidelines......................................................................311

Parameter setting group handling..................................................313

Identification..............................................................................313

Application.................................................................................313


Test mode functionality TESTMODE..............................................314

Identification..............................................................................314

Application.................................................................................314


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Change lock CHNGLCK.................................................................315

Identification..............................................................................315

Application.................................................................................315

Setting guidelines......................................................................316IED identifiers TERMINALID..........................................................316

Identification..............................................................................316

Application.................................................................................316

Customer specific settings...................................................316

Product information PRODINF.......................................................316

Identification..............................................................................316

Application.................................................................................317

Factory defined settings.......................................................317

Primary system values PRIMVAL...................................................318


Signal matrix for analog inputs SMAI.............................................318

Identification..............................................................................318

Application.................................................................................318


Summation block 3 phase 3PHSUM..............................................321

Identification..............................................................................321

Application.................................................................................321


Global base values GBASVAL.......................................................322Identification..............................................................................322

Application.................................................................................322


Authority check ATHCHCK.............................................................323

Identification..............................................................................323

Application.................................................................................323

Authorization handling in the IED.........................................323

Authority status ATHSTAT.............................................................324

Identification..............................................................................324

Application.................................................................................324Denial of service.............................................................................325

Identification..............................................................................325

Application.................................................................................325


Section 18 Requirements...............................................................327Current transformer requirements..................................................327

Current transformer classification..............................................327

Conditions..................................................................................328

Fault current..............................................................................329

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Secondary wire resistance and additional load.........................329

General current transformer requirements................................329

Rated equivalent secondary e.m.f. requirements......................330

Transformer differential protection.......................................3301 Ph high impedance differential protection.........................331

Breaker failure protection.....................................................332

Non-directional instantaneous and definitive time, phase

and residual overcurrent protection......................................332

Non-directional inverse time delayed phase and residual

overcurrent protection..........................................................333

Directional phase and residual overcurrent protection.........334

Current transformer requirements for CTs according to

other standards..........................................................................335

Current transformers according to IEC 60044-1,

class P, PR...........................................................................335

Current transformers according to IEC 60044-1, class

PX, IEC 60044-6, class TPS

(and old British Standard, class X).......................................335

Current transformers according to ANSI/IEEE.....................335

Voltage transformer requirements..................................................336

SNTP server requirements.............................................................337

SNTP server requirements........................................................337

Section 19 Glossary.......................................................................339

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Section 1 Introduction

1.1 This manualThe application manual contains application descriptions and setting guidelinessorted per function. The manual can be used to find out when and for what purposea typical protection function can be used. The manual can also be used whencalculating settings.

1.2 Intended audienceThis manual addresses the protection and control engineer responsible for

planning, pre-engineering and engineering.

The protection and control engineer must be experienced in electrical powerengineering and have knowledge of related technology, such as protection schemesand communication principles.

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1.3 Product documentation1.3.1 Product documentation set

Planning&purchase

Engineering

Installing

Commissioning

Operation

Maintenance

Decommissioning

deinstalling&disposal

Application manual

Operation manual

Installation manual

Service manual

Engineering manual

Commissioning manual

Communication protocolmanual

Technical manual

Planning&purchase

Engineering

Installing

Commissioning

Operation

Maintenance

Decommissioning


Planning&purchase

Engineering

Installing

Commissioning

Operation

Maintenance

Decommissioning


Application manualApplication manual

Operation manualOperation manual

Installation manualInstallation manual

Service manualService manual

Engineering manualEngineering manual

Commissioning manualCommissioning manual

Communication protocolmanualCommunication protocolmanual

Technical manualTechnical manual

en07000220.vsd

IEC07000220 V1 EN

Figure 1: The intended use of manuals in different lifecycles

The engineering manual contains instructions on how to engineer the IEDs usingthe different tools in PCM600. The manual provides instructions on how to set up aPCM600 project and insert IEDs to the project structure. The manual alsorecommends a sequence for engineering of protection and control functions, LHMI

functions as well as communication engineering for IEC 60870-5-103, IEC 61850and DNP3.

The installation manual contains instructions on how to install the IED. Themanual provides procedures for mechanical and electrical installation. The chaptersare organized in chronological order in which the IED should be installed.

The commissioning manual contains instructions on how to commission the IED.The manual can also be used by system engineers and maintenance personnel forassistance during the testing phase. The manual provides procedures for checkingof external circuitry and energizing the IED, parameter setting and configuration as

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well as verifying settings by secondary injection. The manual describes the processof testing an IED in a substation which is not in service. The chapters are organizedin chronological order in which the IED should be commissioned.

The operation manual contains instructions on how to operate the IED once it hasbeen commissioned. The manual provides instructions for monitoring, controllingand setting the IED. The manual also describes how to identify disturbances andhow to view calculated and measured power grid data to determine the cause of afault.

The service manual contains instructions on how to service and maintain the IED.The manual also provides procedures for de-energizing, de-commissioning anddisposal of the IED.

The application manual contains application descriptions and setting guidelinessorted per function. The manual can be used to find out when and for what purposea typical protection function can be used. The manual can also be used whencalculating settings.

The technical manual contains application and functionality descriptions and listsfunction blocks, logic diagrams, input and output signals, setting parameters andtechnical data sorted per function. The manual can be used as a technical referenceduring the engineering phase, installation and commissioning phase, and duringnormal service.

The communication protocol manual describes a communication protocolsupported by the IED. The manual concentrates on vendor-specific implementations.

The point list manual describes the outlook and properties of the data pointsspecific to the IED. The manual should be used in conjunction with thecorresponding communication protocol manual.

1.3.2 Document revision historyDocument revision/date History-/June 2012 First release

1.3.3 Related documentsDocuments related to REG650 Identity numberApplication manual 1MRK 502 042-UEN

Technical manual 1MRK 502 043-UEN

Commissioning manual 1MRK 502 044-UEN

Product Guide 1MRK 502 045-BEN

Type test certificate 1MRK 502 045-TEN

Rotor Earth Fault Protection with Injection Unit RXTTE4 and REG670 1MRG001910

Application notes for Circuit Breaker Control 1MRG006806


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650 series manuals Identity numberCommunication protocol manual, DNP3 1MRK 511 257-UEN

Communication protocol manual, IEC 6185081 1MRK 511 258-UEN

Communication protocol manual, IEC 60870-5-103 1MRK 511 259-UEN

Cyber Security deployment guidelines 1MRK 511 268-UEN

Point list manual, DNP3 1MRK 511 260-UEN

Engineering manual 1MRK 511 261-UEN

Operation manual 1MRK 500 095-UEN

Installation manual 1MRK 514 015-UEN

1.4 Symbols and conventions1.4.1 Symbols

The electrical warning icon indicates the presence of a hazardwhich could result in electrical shock.

The warning icon indicates the presence of a hazard which couldresult in personal injury.

The caution icon indicates important information or warning relatedto the concept discussed in the text. It might indicate the presenceof a hazard which could result in corruption of software or damageto equipment or property.

The information icon alerts the reader of important facts andconditions.

The tip icon indicates advice on, for example, how to design yourproject or how to use a certain function.

Although warning hazards are related to personal injury, it is necessary tounderstand that under certain operational conditions, operation of damagedequipment may result in degraded process performance leading to personal injuryor death. Therefore, comply fully with all warning and caution notices.

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1.4.2 Document conventionsA particular convention may not be used in this manual.

Abbreviations and acronyms in this manual are spelled out in the glossary. Theglossary also contains definitions of important terms.

Push button navigation in the LHMI menu structure is presented by using thepush button icons.To navigate between the options, use and .

HMI menu paths are presented in bold.Select Main menu/Settings.

LHMI messages are shown in Courier font.To save the changes in non-volatile memory, select Yesand press .

Parameter names are shown in italics.The function can be enabled and disabled with the Operationsetting.

The ^ character in front of an input or output signal name in the function blocksymbol given for a function, indicates that the user can set an own signal namein PCM600.

The * character after an input or output signal name in the function blocksymbol given for a function, indicates that the signal must be connected toanother function block in the application configuration to achieve a validapplication configuration.


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Section 2 Application

2.1 REG650 applicationREG650 is used for the protection and monitoring of generating plants. The IED isespecially suitable for applications in distributed control systems with highdemands on reliability. It is intended mainly for small and medium size generationstations.

REG670 may be used when more extensive protection systems are required or in

combination with REG650 to provide redundant schemes.

A wide range of protection functions is available to achieve full and reliableprotection for different types of generating plants, for example hydro power plantsand thermal power plants. This enables adaptation to the protection requirements ofmost generating plants.

Protection functions are available for detecting and clearing internal faults, such asgenerator stator short circuits and earth faults, generator rotor earth faults, unittransformer short circuits and earth faults and faults in the external power system,fed from the generating plant.

Two packages have been defined for the following applications:

Generator protection IED including generator differential protection (B01) Generator-transformer unit protection IED including transformer differential

protection (B05)

In many generating plants, the protection system can be designed with acombination of the two packages, that is, two IEDs of either same type or differenttypes, will give redundant protection for a generating unit (generator and unittransformer) depending on the requirements for the plant design.

The packages are configured and ready for use. Analogue inputs and binary input/output circuits are pre-defined.

The pre-configured IED can be changed and adapted with the graphicalconfiguration tool.

1MRK 502 042-UEN - Section 2Application

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A, B, C or D

~

59N UN>

STEF PHIZ

59THD U3d/N

REG650-B01

TR PTTR

49 Ith

LEX PDIS

40

OEX PVPH

24 U/f>

UV2 PTUV

27 3U

OC4 PTOC

51 3I>

GEN PDIF

87G 3Id/I

SA PTUF

81U f/U

OC4 PTOC

51 3I>

CC RPLD

52PD PD

CC RBRF

50BF 3I> BF

YY

Generator CB

AuxiliaryTransformer

UnitTransformer

29MVA121/11kV

YNd5

ExcitationTransformer

HV CB

ROV2 PTOV

59N 3Uo>

TR PTTR

49 Ith

OOSPPAM

78 Ucos

SESRSYN

25 SC

1)

2)

3)

3) Input for independent directional (sensitive) EF function. It can be used for different purposes.

(e.g. as rotor EF with RXTTE4 or stator EF for generators operating in parallel)

FieldCB

HZ PDIF

87N IdN

2)Input for independent non-directional EF function. It can be used for different purposes (e.g. as stator EF protection or turn-to-turn protection for generators with split winding or even HV sideEF protection). Alternatively it can be used for High-Impedance REF protection.

ROV2 PTOV

59N 3Uo>

CV MMXN

Meter.

GUP PDOP

32

GOP PDUP

37 P

EF4 PTOC

67N

SDEPSDE

67N

Rotor EF protection 64R

GUP PDOP

32Q

SA PFRC

81R df/dt

390kVA11/0.37kV

Dyn11

50/5

1600/5

1600/5

10/1

1.6MVA11/0.4kV

EF4 PTOC

51N IN>

11 0.11 0.11/ /

33 3kV

11 0.11 0.11/ /

33 3kV

11 / 0.113

kV

200/1

100/52500/5

1000

29MVA11kV

150rpm

RXTTE4

D

C B

A

H J, G or H

200/5

G

Y200/1

J

C MSQI

Meter.

IEC10000299-2-en.vsd

Q

P

IN> IN>

UV2 PTUV

27 3U

T3DPDIF

87T 3Id/I

SA PTUF

81U f/ U

OC4 PTOC

51 3I>

CC RPLD

52PD PD

CC RBRF

50BF 3I> BF

YY

Generator CB

HV CB

ROV2 PTOV

59N 3Uo>

TR PTTR

49 Ith

OOSPPAM

78 Ucos

SESRSYN

25 SC

Note:

2)Input for independent non-directional EF function. It can be used for different purposes (e.g. as stator EF protection or turn-to-turn protection for gene rators with split winding or even HV

side EF protection). Alternatively it can be used for High-Impedance REF protection.

1)Inputs for independent directional (sensitive) E F function. It can be used for different purposes

(e.g. as rotor EF with RXTTE4 or stator EF for generators running in parallel)

1)

2)

FieldCB

TR PTTR

49 Ith

OC4 PTOC

51 3I>

HZ PDIF

87N IdN

EF4 PTOC

51N IN>

GT01

ROV2 PTOV

59N 3Uo>

59N UN>

YY

CV MMXN

Meter.

GOP PDUP

37 P

EF4 PTOC

67N

SDEPSDE

67N

Rotor EF protection 64R

CV MMXN

Meter.

GOP PDOP

32Q

SA PFRC

81R df/dt

3)

3)Alternatively step-up transformer HV side open delta VT can be connected here

Generator CB

Auxiliary

Transformer

Unit

Transformer

29MVA

121/11kVYNd5

ExcitationTransformer

390kVA

11/0.37kV

Dyn11

50/5

1600/5

29MVA

11kV

150rpm

200/1

100/5

1.6MVA

11/0.4kV

11 0.11 0.11/ /

33 3kV

110 0.11 0.11/ /

33 3kV

11/ 0.11

3kV

2500/5

1000

RXTTE4

C

B

E

A

D

A or B

D or E

200/5

G

1600/5

10/1H J, G or H

Y200/1

J

SDD RFUF

60FL

C MSQI

Meter.


IN> IN>

Q

P

On On On On

Two step residual overvoltage ProtectionROV2PTOV , U0>, instance 1

OnGen Term

OnGen Term

OnGen Neutr point

OnGen Neutr point

Two step residual overvoltage ProtectionROV2PTOV , U0>, instance 2

OnT sec side

OnT sec side

OnT sec side

OnT HV neutr point

Overexcitation protection OEXPVPH On On On On

100% Stator earth fault protection, 3rd harmonicbased STEFPHIZ / 95 % fundamental based

On On Applicationdependent

Applicationdependent

Underfrequency protection SAPTUF , instance 1 On On On On

Underfrequency protection SAPTUF, instance 2 Off Off Off Off



Overfrequency protection SAPTOF, instance 1 On On On On

Overfrequency protection SAPTOF, instance 2 Off Off Off Off



Table continues on next page

Section 2 1MRK 502 042-UEN -Application

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Function Application 1 Application 2 Application 3 Application 4Rate-of-change frequency protection SAPFRC,instance 1





Rate-of-change frequency protection SAPFRC ,

instance 2

Off Off Off Off

Synchrocheck, energizing check, and synchronizingSESRSYN





1) The generator should have reverse power protection. If the generator consumes low reverse power at motor operation (< 1 % of SN),

low forward power protection should be used. In other cases, reverse power protection should be used.2) Voltage-restrained time overcurrent protection add (VR2PVOC) can be used instead of the underimpedance protection.


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2.3.1.6 Single generator/transformer unit, connected to a solidly earthedHigh Voltage (HV) system, with redundant protection

REG650 (B01)

3

3

3

3

1

1

3

1

1

3

Aux

Rotor

DC

Rotor EF

injection

IinjUinj

REG650 (B05)


IEC10000128 V1 EN

Figure 8: Single generator/transformer unit, connected to a solidly earthed

High Voltage (HV) system, with redundant protection

REG650 (B01) is used as the main protection for the generator and REG650 (B05)is used as the main protection for the unit transformer and as back-up protection forthe generator. The combination of the protections also gives redundant protectionfor the auxiliary system transformer.


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Table 6: Data for the generator application exam pleParameter ValueGenerator rated voltage (UN,Gen) 1 20 kV

Transformer high voltage side rated voltage (UN,THV)

11 220 kV

Generator rated power (SN) 1 150 MVA

Short circuit power level infeed at HV-side 500 10000 MVA

2.3.1.7 Single generator/transformer unit, connected to a high impedanceearthed High Voltage (HV) system, with redundant protection

REG650 (B01)

3

3

3

3

1

1

3

1

3

Aux

Rotor

DC

Rotor EF

injection

IinjUinj

REG650 (B05)

1


IEC10000129 V1 EN

Figure 9: Single generator/transformer unit, connected to a high impedance

earthed High Voltage (HV) system, with redundant protection


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Transformer high voltage side rated voltage (UN,

THV)

11 220 kV

Generator rated power (SN) 1 150 MV


2.3.1.8 Two generators having one three-winding unit transformer,connected to a solidly earthed High Voltage (HV) system, withredundant protection with unit differential protection including thegeneratorsREG650 (B05)

3

3

3

1

1

3

1

3

3

3

1

1

1

3

1

3

Rotor

DC

Rotor EF

injection

IinjUinj

REG650 (B01)

Aux

Rotor

DC

Rotor EF

injection

IinjUinj

REG650 (B01)

3

Aux


IEC10000130 V1 EN

Figure 10: Two generators having one three-winding unit transformer,

connected to a solidly earthed High Voltage (HV) system, with

redundant protection with unit differential protection including the

generators


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THV)

11 220 kV



2.3.1.9 Two generators having one three-winding unit transformer,connected to a solidly earthed High Voltage (HV) system, withredundant protection with unit transformer differential protectionREG650 (B05)

3

3

3

1

1

3

1

3

3

3

1

1

1

3

1

3

Rotor

DC

Rotor EF

injection

IinjUinj

REG650 (B01)

Aux

Rotor

DC

Rotor EF

injection

IinjUinj

REG650 (B01)

3

Aux


IEC10000131 V1 EN

Figure 11: Two generators having one three-winding unit transformer,

connected to a solidly earthed High Voltage (HV) system, with

redundant protection with unit transformer differential protection

REG650 (B01) is used as the main protection for the generator and REG650 (B05)is used as the main protection for the unit transformer and as back-up protection for


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the generator. The combination of the protections also gives redundant protectionfor the auxiliary system transformer.



THV)

11 220 kV



2.3.1.10 Functionality tableThe proposal for functionality choice for the different application cases are shownin table 10.

The recommendations have the following meaning:

On: It is recommended to have the function activated in the application. Off: It is recommended to have the function deactivated in the application. Application dependent: The decision to have the function activated or not is

dependent on the specific conditions in each case.

Application 5 8 in table10are according to application examples

given in previous sections.

Tab le 10: Recommended funct ions in the d if fe rent app li ca tion examp lesFunction Application 5 Application 6 Application 7 Application 8Generator differential protection GENPDIF (B01) On On On On

Transformer differential protection T3WPDIF (B05) On On On On

1Ph High impedance differential protection HZPDIF Applicationdependent




Underimpedance protection for generators andtransformers ZGCPDIS (B01)

On On On On

Underimpedance protection for generators andtransformers ZGCPDIS (B05)

Off Off Off Off

Load encroachment LEPDIS Applicationdependent




Out-of-step protection OOSPPAM (B01) On On On On

Out-of-step protection OOSPPAM (B05) Off Off Off Off

Loss of excitation (underexcitation) protectionLEXPDIS (A01)

On On On On

Loss of excitation (underexcitation) protectionLEXPDIS (B05)

Off Off Off Off



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Function Application 5 Application 6 Application 7 Application 8Four step phase overcurrent protection OC4PTOC ,instance 1 (B01)

OnAux T

OnAux T

OnAux T

OnAux T

Four step phase overcurrent protection OC4PTOC ,

instance 1 (B05)

On On On On

Four step phase overcurrent protection OC4PTOC ,instance 2

Off Off Off Off

Four step residual overcurrent protection EF4PTOC ,instance 1 (B01)

Off Off Off Off

Four step residual overcurrent protection EF4PTOC ,instance 1 (B05)

OnT HV

OnT HV

OnT HV

OnT HV

Four step residual overcurrent protection EF4PTOC ,instance 2

Off Off Off Off

Sensitive directional residual overcurrent and powerprotection SDEPSDE (B01)

OnRotor EF

OnRotor EF

OnRotor EF

OnRotor EF

Sensitive directional residual overcurrent and power

protection SDEPSDE (B05)

Off Off Off Off

Thermal overload protection TRPTTR , instance 1 On On On On

Thermal overload protection TRPTTR , instance 2 Off Off Off Off

Breaker failure protection CCRBRF (B01) On On On On

Breaker failure protection CCRBRF (B05) OnHV CB

OnHV CB

OnHV CB

OnHV CB

Pole discordance protection CCRPLD Applicationdependent




Directional under-power protection GUPPDUP (lowforward power protection), (B01)

1) 1) 1) 1)

Directional underpower protection GUPPDUP (Low

forward power protection), (B05)

Off Off Off Off

Directional overpower protection GOPPDOP ,instance 1 (reverse power protection), (B01)

1) 1) 1) 1)

Directional overpower protection GOPPDOP ,instance 1 (reverse power protection), (B05)

Off Off Off Off

Directional overpower protection GOPPDOP ,instance 2

Off Off Off Off

Accidental energizing protection for synchronousgenerator AEGGAPC (B01)

On On On On

Accidental energizing protection for synchronousgenerator AEGGAPC (B05)

Off Off Off Off

Negative-sequence time overcurrent protection formachines NS2PTOC On On On On

Voltage-restrained time overcurrent protectionVR2PVOC (B01)

2) 2) 2) 2)

Voltage-restrained time overcurrent protectionVR2PVOC (B05)

Off Off Off Off

Two step undervoltage protection UV2PTUV , U< On On On On

Two step overvoltage protection OV2PTOV , U> On On On On

Two step residual overvoltage protectionROV2PTOV , U0>, instance 1 (B01)

OnGen Neutr point

OnGen Neutr point

OnGen Neutr point

OnGen Neutr point



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Function Application 5 Application 6 Application 7 Application 8Two step residual overvoltage protectionROV2PTOV , U0>, instance 1 (B05)

OnT sec side

OnT sec side

OnT sec side

OnT sec side

Two step Residual Overvoltage Protection

ROV2PTOV , U0>, instance 2 (B01)

On

Gen Term

On

Gen Term

On

Gen Term

On

Gen Term

Two step residual overvoltage protectionROV2PTOV , U0>, instance 2 (B05)

Off OnT HV neutr point

OnT sec side 2

OnT sec side 2

Overexcitation protection OEXPVPH On On On On

100% Stator earth fault protection, 3rd harmonicbased STEFPHIZ / 95 % fundamental based (B01)

On On On On

100% Stator earth fault protection, 3rd harmonicbased STEFPHIZ / 95 % fundamental based (B05)

Off Off Off Off

Underfrequency protection SAPTUF , instance 1 On On On On

Underfrequency protection SAPTUF , instance 2 Off Off Off Off



Overfrequency protection SAPTOF, instance 1 On On On On




Rate-of-change frequency protection SAPFRC,instance 1





Rate-of-change frequency protection SAPFRC,instance 2

Off Off Off Off

Synchrocheck, energizing check, and synchronizingSESRSYN(B01)





Synchrocheck, energizing check, and synchronizingSESRSYN (B05)

Off Off Off Off

1) The generator should have reverse power protection. If the generator consumes low reverse power at motor operation (< 1 % of SN),

low forward power protection should be used. In other cases, reverse power protection should be used.2) Voltage-restrained time overcurrent protection add (VR2PVOC) can be used instead of the underimpedance protection.


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Section 3 REG650 setting examples

The application example has a generation unit protected by one REG650 B01(Main 1) and one REG650 B05 (Main 2) as shown in figure 12.

REG650 (B01)

3

3

3

3

1

1

3

1

1

3

Aux

Rotor

DC

Rotor EF

injection

IinjUinj

REG650 (B05)

145 kV


IEC10000155 V1 EN

Figure 12: Power plant protection application

The following data is assumed:

Table 11: Data for the unit transformerItem DataTransformer rated power SN 25 MVA

Transformer high voltage side rated voltage UN1 145 kV

Transformer low voltage side rated voltage UN2 10.5 kV

Transformer vector group YNd11


1MRK 502 042-UEN - Section 3REG650 setting examples

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Item DataTransformer short circuit voltage ek 12 %

Maximum allowed continuous overload 1.30 * SN

Phase CT ratio at 145 kV level 150/1 A

CT at 145 kV earth point 150/1 A

Phase CT ratio at 10 kV level 1500/1 A

10 kV VT ratio 11 0 11 0 11kv

33 3

. ./ /

High Positive sequence source impedance at theHV side

10 ohm (about 2100 MVA) with a phase angle 85

High Zero sequence source impedance at theHV side

j20 ohm

Table 12: Data for the generatorItem DataGenerator rated power SN 25 MVA

Generator rated voltage UN 10.5 kV kV

Rate power factor cosn 0.90

xd 1.0 per unit (pu)

xd 0.4 pu

xd 0.25 pu

Phase CT ratio at generator terminal side 1500/1 APhase CT ratio at generator neutral point side 1500/1 A

Generator neutral point VT ratio 110.11 kV

3/

Generator 10 kV terminal VT ratio 11 0 11 0 11kV

33 3

. ./ /

Table 13: Data for the auxiliary transform erItem DataTransformer rated power SN 1.0 MVA

Transformer high voltage side rated voltage UN1 10.5 kV

Transformer low voltage side rated voltage UN2 0.4 kV

Transformer vector group Dyn5

Transformer short circuit voltage ek 4 %

Phase CT ratio at 10.5 kV level 100/1 A

Section 3 1MRK 502 042-UEN -REG650 setting examples

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Only settings that need adjustment due to the specific applicationare described in setting examples. It is recommended to keep thedefault values for all settings that are not described. Refer toTechnical manual for setting tables for each protection and controlfunction.

Refer to setting guideline section in Application manual forguidelines on how to set functions that are not presented in settingexamples.

Use parameter setting tool in PCM600 to set the IED according tocalculations for the particular application.

3.1 Calculating general settings for analogue TRMinputs 4I 1I 5UThe transformer module (TRM) has the capability of 4 current inputs (tapped to 1or 5 A), 1 current input (tapped to 0.1 or 0.5 A) and 5 voltage inputs.

The generator neutral point phase CTs (three-phase current transformer group) areconnected to inputs 1 3 (L1, L2 and L3).

The generator neutral point CT can be connected to input 4 (not used here).

The rotor earth fault current measurement is connected to input 5.

The generator terminal side phase VT is connected to inputs 6 - 8 (L1, L2 and L3).

The generator neutral point VT is connected to input 9.

The rotor earth fault voltage measurement is connected to input 10.

1. Set the current transformer inputs.1.1. Set CTStarPoint1to To Object.

The CT secondary is earthed towards the transformer.1.2. Set CTSec1to 1 A.

(The rated secondary current of the CT)1.3. Set CTPrim1to 1500 A.

(The rated primary current of the CT)1.4. Set the same values for current inputs 2 and 3.1.5. Set CTStarPoint4to.1.6. Set CTSec4to.

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1.7. Set CTPrim4to.1.8. Set CTStarPoint5to To Object.1.9. Set CTSec5to 1 A.1.10. Set CTPrim5to 1000 A.

2. Set the voltage transformer inputs.

2.1. Set VTSec6to 110 V.(The rated secondary voltage of the VT, given as phase-to-phase voltage)

2.2. Set VTPrim6to 11 kV.(The rated secondary voltage of the VT, given as phase-to-phase voltage)

2.3. Set the same values for current inputs 7 and 8.2.4. Set VTSec9to 110 V.

(The rated secondary voltage of the VT)2.5. Set VTPrim9to 6.35 kV.

This gives equivalent of ratio

110.11 kV

3/

EQUATION2379 V1 EN

2.6. Set VTSec10to 120 V.2.7. Set VTPrim10to 120 kV.

3.2 Calculating general settings for analogue AIMinputs 6I 4UThe analogue input module (AIM) has the capability of 6 current inputs (tapped to1 or 5 A) and 4 voltage inputs.

The generator terminal side phase CTs (three-phase current transformer group) areconnected to inputs 1 3 (L1, L2 and L3).

The auxiliary transformer 10 kV phase CTs (three-phase current transformergroup) are connected to inputs 4 6 (L1, L2 and L3).

The transformer 10 kV phase VT is connected to inputs 7 - 9 (L1, L2 and L3).

The generator terminal side open delta VT is connected to input 10.

1. Set the current transformer inputs.

1.1. Set CTStarPoint1to To Object.The CT secondary is earthed towards the transformer.

1.2. Set CTSec1to 1 A.(The rated secondary current of the CT)

1.3. Set CTPrim1to 1500 A.

Section 3 1MRK 502 042-UEN -REG650 setting examples

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(The rated primary current of the CT)1.4. Set the same values for current inputs 2 and 3.1.5. Set CTStarPoint4to To Object.

The CT secondary is earthed towards the bus transformer.1.6. Set CTSec4to 1 A.

(The rated secondary current of the CT)1.7. Set CTPrim4to 100 A.

(The rated primary current of the CT)1.8. Set the same values for current inputs 5 and 6.

2. Set the voltage transformer inputs.

2.1. Set VTSec7to 110 V(The rated secondary voltage of the VT, given as phase-to-phase voltage)

2.2. Set VTPrim7to 11 kV.(The rated secondary voltage of the VT, given as phase-to-phase voltage)

2.3. Set the same values for current inputs 8 and 9.3. Set VTSec10to 110 V.

(The rated secondary voltage of the VT multiplied by 3)4. Set VTPrim10to 19.05 kV.

This gives equivalent of ratio

11 0 11kv

33

./

EQUATION2355 V1 EN

3.3 Preprocessing blocks SMAIMany of the protection functions must be enabled to operate also during generatorrun-up, i.e. in circumstances where the