Relion 670 series

Line differential protection RED670Technical reference manual

Document ID: 1MRK 505 222-UENIssued: September 2011

Revision: BProduct version: 1.2

Copyright 2011 ABB. All rights reserved

CopyrightThis document and parts thereof must not be reproduced or copied without writtenpermission from ABB, and the contents thereof must not be imparted to a thirdparty, nor used for any unauthorized purpose.The software or 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 ABB Group. All other brand orproduct 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 ABSubstation Automation ProductsSE-721 59 VstersSwedenTelephone: +46 (0) 21 32 50 00Facsimile: +46 (0) 21 14 69 18http://www.abb.com/substationautomation

DisclaimerThe data, examples and diagrams in this manual are included solely for the conceptor 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 theperson 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.

ConformityThis product complies with the directive of the Council of the EuropeanCommunities 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 IED is designed in accordance with the internationalstandards of the IEC 60255 series.

Table of contents

Section 1 Introduction.....................................................................31Introduction to the technical reference manual.................................31

About the complete set of manuals for an IED............................31About the technical reference manual.........................................32This manual.................................................................................33

Introduction.............................................................................33Principle of operation..............................................................33Input and output signals.........................................................36Function block........................................................................36Setting parameters.................................................................36Technical data........................................................................37

Intended audience.......................................................................37Related documents......................................................................37Revision notes.............................................................................38

Section 2 Analog inputs..................................................................39Introduction.......................................................................................39Operation principle...........................................................................39Function block..................................................................................40Setting parameters...........................................................................41

Section 3 Local HMI.......................................................................47Human machine interface ................................................................47Small size HMI..................................................................................49

Small............................................................................................49Design.........................................................................................49

Medium size graphic HMI.................................................................51Medium........................................................................................51Design.........................................................................................51

Keypad.............................................................................................53LED...................................................................................................54

Introduction..................................................................................54Status indication LEDs................................................................54Indication LEDs...........................................................................54

Local HMI related functions..............................................................55Introduction..................................................................................55General setting parameters.........................................................56Status LEDs.................................................................................56

Design....................................................................................56Function block........................................................................56

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Input and output signals.........................................................56Indication LEDs...........................................................................57

Introduction.............................................................................57Design....................................................................................57Function block........................................................................64Input and output signals.........................................................64Setting parameters.................................................................64

Section 4 Basic IED functions........................................................67Authorization.....................................................................................67

Principle of operation...................................................................67Authorization handling in the IED...........................................68

Self supervision with internal event list.............................................69Introduction..................................................................................69Principle of operation...................................................................69

Internal signals.......................................................................71Run-time model......................................................................73

Function block.............................................................................74Output signals..............................................................................74Setting parameters......................................................................74Technical data.............................................................................75

Time synchronization........................................................................75Introduction..................................................................................75Principle of operation...................................................................75

General concepts...................................................................75Real-time clock (RTC) operation............................................78Synchronization alternatives..................................................79Process bus IEC 61850-9-2LE synchronization.....................82

Function block.............................................................................82Output signals..............................................................................82Setting parameters......................................................................83Technical data.............................................................................86

Parameter setting groups.................................................................86Introduction..................................................................................86Principle of operation...................................................................86Function block.............................................................................87Input and output signals..............................................................88Setting parameters......................................................................88

ChangeLock function CHNGLCK.....................................................88Introduction..................................................................................89Principle of operation...................................................................89Function block.............................................................................89Input and output signals..............................................................89Setting parameters......................................................................90

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Test mode functionality TEST..........................................................90Introduction..................................................................................90Principle of operation...................................................................90Function block.............................................................................92Input and output signals..............................................................92Setting parameters......................................................................93

IED identifiers...................................................................................93Introduction..................................................................................93Setting parameters......................................................................93

Product information..........................................................................94Introduction..................................................................................94Setting parameters......................................................................94Factory defined settings..............................................................94

Signal matrix for binary inputs SMBI................................................95Introduction..................................................................................95Principle of operation...................................................................95Function block.............................................................................95Input and output signals..............................................................96

Signal matrix for binary outputs SMBO ...........................................96Introduction..................................................................................96Principle of operation...................................................................97Function block.............................................................................97Input and output signals..............................................................97

Signal matrix for mA inputs SMMI....................................................98Introduction..................................................................................98Principle of operation...................................................................98Function block.............................................................................98Input and output signals..............................................................98

Signal matrix for analog inputs SMAI...............................................99Introduction..................................................................................99Principle of operation...................................................................99Frequency values........................................................................99Function block...........................................................................100Input and output signals............................................................101Setting parameters....................................................................102

Summation block 3 phase 3PHSUM..............................................104Introduction................................................................................104Principle of operation.................................................................104Function block...........................................................................105Input and output signals............................................................105Setting parameters....................................................................105

Authority status ATHSTAT.............................................................106Introduction................................................................................106

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Principle of operation.................................................................106Function block...........................................................................106Output signals............................................................................106Setting parameters....................................................................107

Denial of service DOS....................................................................107Introduction................................................................................107Principle of operation.................................................................107Function blocks..........................................................................107Signals.......................................................................................108Settings......................................................................................108

Section 5 Differential protection...................................................109Line differential protection..............................................................109

Introduction................................................................................109Line differential protection, 3 or 6 CT sets L3CPDIF,L6CPDIF...............................................................................109Line differential protection 3 or 6 CT sets, with in-zonetransformers LT3CPDIF, LT6CPDIF....................................111Analog signal transfer for line differential protection............111

Principle of operation.................................................................112Algorithm and logic...............................................................112Time synchronization...........................................................118Analog signal communication for line differentialprotection..............................................................................120Open CT detection feature...................................................123Binary signal transfer............................................................124Line differential coordination function LDLPDIF ..................125

Function block...........................................................................125Input and output signals............................................................127Setting parameters....................................................................133Technical data...........................................................................143

1Ph High impedance differential protection HZPDIF .....................143Identification..............................................................................143Introduction................................................................................144Principle of operation.................................................................144

Logic diagram.......................................................................144Function block...........................................................................145Input and output signals............................................................145Setting parameters....................................................................145Technical data...........................................................................146

Additional security logic for differential protection STSGGIO ........146Introduction................................................................................146Principle of operation.................................................................147Function block...........................................................................151

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Input and output signals............................................................151Setting parameters....................................................................152Technical data...........................................................................153

Section 6 Impedance protection ..................................................155Distance measuring zones, quadrilateral characteristicZMQPDIS, ZMQAPDIS, ZDRDIR...................................................155

Identification..............................................................................155Introduction................................................................................155Principle of operation.................................................................156

Full scheme measurement...................................................156Impedance characteristic.....................................................157Minimum operating current...................................................161Measuring principles............................................................161Directional impedance element for quadrilateralcharacteristics......................................................................164Simplified logic diagrams......................................................166

Function block...........................................................................169Input and output signals............................................................170Setting parameters....................................................................172Technical data...........................................................................174

Distance measuring zone, quadrilateral characteristic forseries compensated lines ZMCPDIS, ZMCAPDIS, ZDSRDIR.......174

Introduction................................................................................175Principle of operation.................................................................176

Full scheme measurement...................................................176Impedance characteristic.....................................................176Minimum operating current...................................................180Measuring principles............................................................180Directionality for series compensation..................................183Simplified logic diagrams......................................................185

Function block...........................................................................188Input and output signals............................................................189Setting parameters....................................................................191Technical data...........................................................................194

Phase selection, quadrilateral characteristic with fixed angleFDPSPDIS......................................................................................194

Identification..............................................................................194Introduction................................................................................195Principle of operation.................................................................195

Phase-to-earth fault..............................................................197Phase-to-phase fault............................................................199Three-phase faults...............................................................201Load encroachment..............................................................201

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Minimum operate currents....................................................206Simplified logic diagrams......................................................206

Function block...........................................................................211Input and output signals............................................................212Setting parameters....................................................................213Technical data...........................................................................214

Full-scheme distance measuring, Mho characteristicZMHPDIS ......................................................................................214

Introduction................................................................................214Principle of operation.................................................................215

Full scheme measurement...................................................215Impedance characteristic.....................................................216Basic operation characteristics.............................................217Theory of operation..............................................................218Simplified logic diagrams......................................................227

Function block...........................................................................230Input and output signals............................................................231Setting parameters....................................................................232Technical data...........................................................................233

Full-scheme distance protection, quadrilateral for earth faultsZMMPDIS, ZMMAPDIS..................................................................234

Introduction................................................................................234Principle of operation.................................................................235

Full scheme measurement...................................................235Impedance characteristic.....................................................235Minimum operating current...................................................237Measuring principles............................................................238Directional lines....................................................................240Simplified logic diagrams......................................................242

Function block...........................................................................245Input and output signals............................................................245Setting parameters....................................................................246Technical data...........................................................................248

Directional impedance element for mho characteristic andadditional distance protection directional function for earthfaults ZDMRDIR, ZDARDIR...........................................................248

Introduction................................................................................249Principle of operation.................................................................249

Directional impedance element for mho characteristicZDMRDIR.............................................................................249Additional distance protection directional function forearth faults ZDARDIR ..........................................................252

Function block...........................................................................254Input and output signals............................................................254

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Setting parameters....................................................................255Mho impedance supervision logic ZSMGAPC................................256

Introduction................................................................................256Principle of operation.................................................................257

Fault inception detection......................................................257Function block...........................................................................258Input and output signals............................................................258Setting parameters....................................................................259

Faulty phase identification with load encroachmentFMPSPDIS.....................................................................................259

Introduction................................................................................260Principle of operation.................................................................260

The phase selection function................................................260Function block...........................................................................271Input and output signals............................................................272Setting parameters....................................................................272Technical data...........................................................................273

Distance protection zone, quadrilateral characteristic, separatesettings ZMRPDIS, ZMRAPDIS and ZDRDIR................................273

Introduction................................................................................274Principle of operation.................................................................275

Full scheme measurement...................................................275Impedance characteristic.....................................................275Minimum operating current...................................................279Measuring principles............................................................279Directional impedance element for quadrilateralcharacteristics......................................................................282Simplified logic diagrams......................................................284

Function block...........................................................................287Input and output signals............................................................288Setting parameters....................................................................290Technical data...........................................................................292

Phase selection, quadrilateral characteristic with settableangle FRPSPDIS............................................................................292

Introduction................................................................................293Principle of operation.................................................................293

Phase-to-earth fault..............................................................295Phase-to-phase fault............................................................297Three-phase faults...............................................................299Load encroachment..............................................................299Minimum operate currents....................................................304Simplified logic diagrams......................................................305

Function block...........................................................................309Input and output signals............................................................310

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Setting parameters....................................................................311Technical data...........................................................................312

Power swing detection ZMRPSB ...................................................312Introduction................................................................................312Principle of operation.................................................................312

Resistive reach in forward direction.....................................314Resistive reach in reverse direction.....................................314Reactive reach in forward and reverse direction..................315Basic detection logic.............................................................315Operating and inhibit conditions...........................................318

Function block...........................................................................319Input and output signals............................................................319Setting parameters....................................................................320Technical data...........................................................................321

Power swing logic ZMRPSL ..........................................................321Introduction................................................................................321Principle of operation.................................................................321

Communication and tripping logic........................................321Blocking logic.......................................................................322

Function block...........................................................................324Input and output signals............................................................324Setting parameters....................................................................325

Pole slip protection PSPPPAM ......................................................325Introduction................................................................................325Principle of operation.................................................................325Function block...........................................................................329Input and output signals............................................................329Setting parameters....................................................................330Technical data...........................................................................330

Automatic switch onto fault logic, voltage and current basedZCVPSOF ......................................................................................331

Introduction................................................................................331Principle of operation.................................................................331Function block...........................................................................333Input and output signals............................................................333Setting parameters....................................................................333Technical data...........................................................................334

Phase preference logic PPLPHIZ...................................................334Introduction................................................................................334Principle of operation.................................................................334Function block...........................................................................337Input and output signals............................................................337Setting parameters....................................................................338

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Section 7 Current protection.........................................................341Instantaneous phase overcurrent protection PHPIOC ..................341

Introduction................................................................................341Principle of operation.................................................................341Function block...........................................................................342Input and output signals............................................................342Setting parameters....................................................................342Technical data...........................................................................343

Four step phase overcurrent protection OC4PTOC ......................343Introduction................................................................................343Principle of operation.................................................................343Function block...........................................................................348Input and output signals............................................................348Setting parameters....................................................................350Technical data...........................................................................355

Instantaneous residual overcurrent protection EFPIOC ................356Introduction................................................................................356Principle of operation.................................................................356Function block...........................................................................357Input and output signals............................................................357Setting parameters....................................................................357Technical data...........................................................................358

Four step residual overcurrent protection EF4PTOC ....................358Introduction................................................................................358Principle of operation.................................................................359

Operating quantity within the function..................................359Internal polarizing.................................................................360External polarizing for earth-fault function............................362Base quantities within the protection....................................362Internal earth-fault protection structure................................362Four residual overcurrent steps............................................363Directional supervision element with integrateddirectional comparison function............................................364Second harmonic blocking element.....................................366Switch on to fault feature......................................................368

Function block...........................................................................370Input and output signals............................................................371Setting parameters....................................................................372Technical data...........................................................................377

Four step directional negative phase sequence overcurrentprotection NS4PTOC .....................................................................377

Introduction................................................................................378Principle of operation.................................................................378

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Operating quantity within the function..................................378Internal polarizing facility of the function..............................379External polarizing for negative sequence function..............380Base quantities within the function.......................................380Internal negative sequence protection structure..................381Four negative sequence overcurrent stages........................381Directional supervision element with integrateddirectional comparison function............................................382

Function block...........................................................................385Input and output signals............................................................385Setting parameters....................................................................386Technical data...........................................................................391

Sensitive directional residual overcurrent and power protectionSDEPSDE .....................................................................................391

Introduction................................................................................391Principle of operation.................................................................393

Function inputs.....................................................................393Function block...........................................................................399Input and output signals............................................................400Setting parameters....................................................................401Technical data...........................................................................403

Thermal overload protection, one time constant LPTTR ...............404Introduction................................................................................404Principle of operation.................................................................404Function block...........................................................................407Input and output signals............................................................407Setting parameters....................................................................407Technical data...........................................................................408

Breaker failure protection CCRBRF ..............................................408Introduction................................................................................409Principle of operation.................................................................409Function block...........................................................................412Input and output signals............................................................413Setting parameters....................................................................413Technical data...........................................................................414

Stub protection STBPTOC ............................................................415Introduction................................................................................415Principle of operation.................................................................415Function block...........................................................................416Input and output signals............................................................416Setting parameters....................................................................417Technical data...........................................................................417

Pole discordance protection CCRPLD ..........................................417Introduction................................................................................418

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Principle of operation.................................................................418Pole discordance signaling from circuit breaker...................421Unsymmetrical current detection..........................................421

Function block...........................................................................421Input and output signals............................................................422Setting parameters....................................................................422Technical data...........................................................................423

Directional underpower protection GUPPDUP...............................423Introduction................................................................................423Principle of operation.................................................................424

Low pass filtering..................................................................426Calibration of analog inputs..................................................426

Function block...........................................................................427Input and output signals............................................................428Setting parameters....................................................................428Technical data...........................................................................429

Directional overpower protection GOPPDOP ................................430Introduction................................................................................430Principle of operation.................................................................431

Low pass filtering..................................................................433Calibration of analog inputs..................................................433

Function block...........................................................................434Input and output signals............................................................435Setting parameters....................................................................435Technical data...........................................................................437

Broken conductor check BRCPTOC .............................................437Introduction................................................................................437Principle of operation.................................................................437Function block...........................................................................438Input and output signals............................................................439Setting parameters....................................................................439Technical data...........................................................................439

Section 8 Voltage protection........................................................441Two step undervoltage protection UV2PTUV ................................441

Introduction................................................................................441Principle of operation.................................................................441

Measurement principle.........................................................442Time delay............................................................................442Blocking................................................................................447Design..................................................................................448

Function block...........................................................................450Input and output signals............................................................450Setting parameters....................................................................451

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Technical data...........................................................................453Two step overvoltage protection OV2PTOV ..................................454

Introduction................................................................................454Principle of operation.................................................................454

Measurement principle.........................................................455Time delay............................................................................455Blocking................................................................................461Design..................................................................................461

Function block...........................................................................463Input and output signals............................................................463Setting parameters....................................................................464Technical data...........................................................................466

Two step residual overvoltage protection ROV2PTOV .................466Introduction................................................................................466Principle of operation.................................................................467

Measurement principle.........................................................467Time delay............................................................................467Blocking................................................................................472Design..................................................................................472

Function block...........................................................................473Input and output signals............................................................474Setting parameters....................................................................474Technical data...........................................................................476

Overexcitation protection OEXPVPH ............................................476Introduction................................................................................476Principle of operation.................................................................477

Measured voltage.................................................................479Operate time of the overexcitation protection.......................480Cooling.................................................................................484Overexcitation protection function measurands...................484Overexcitation alarm............................................................485Logic diagram.......................................................................485

Function block...........................................................................486Input and output signals............................................................486Setting parameters....................................................................486Technical data...........................................................................488

Voltage differential protection VDCPTOV ......................................488Introduction................................................................................488Principle of operation.................................................................488Function block...........................................................................490Input and output signals............................................................490Setting parameters....................................................................490Technical data...........................................................................491

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Loss of voltage check LOVPTUV ..................................................491Introduction................................................................................491Principle of operation.................................................................492Function block...........................................................................493Input and output signals............................................................494Setting parameters....................................................................494Technical data...........................................................................494

Section 9 Frequency protection....................................................495Underfrequency protection SAPTUF .............................................495

Introduction................................................................................495Principle of operation.................................................................495

Measurement principle.........................................................496Time delay............................................................................496Voltage dependent time delay..............................................496Blocking................................................................................498Design..................................................................................498

Function block...........................................................................499Input and output signals............................................................499Setting parameters....................................................................499Technical data...........................................................................500

Overfrequency protection SAPTOF ...............................................500Introduction................................................................................501Principle of operation.................................................................501

Measurement principle.........................................................501Time delay............................................................................501Blocking................................................................................502Design..................................................................................502

Function block...........................................................................503Input and output signals............................................................503Setting parameters....................................................................503Technical data...........................................................................504

Rate-of-change frequency protection SAPFRC .............................504Introduction................................................................................504Principle of operation.................................................................504

Measurement principle.........................................................505Time delay............................................................................505Blocking................................................................................505Design..................................................................................506

Function block...........................................................................507Input and output signals............................................................507Setting parameters....................................................................507Technical data...........................................................................508

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Section 10 Multipurpose protection................................................509General current and voltage protection CVGAPC..........................509

Introduction................................................................................509Principle of operation.................................................................509

Measured quantities within CVGAPC...................................509Base quantities for CVGAPC function..................................512Built-in overcurrent protection steps.....................................512Built-in undercurrent protection steps...................................517Built-in overvoltage protection steps....................................518Built-in undervoltage protection steps..................................518Logic diagram.......................................................................518

Function block...........................................................................523Input and output signals............................................................524Setting parameters....................................................................525Technical data...........................................................................533

Section 11 Secondary system supervision.....................................535Current circuit supervision CCSRDIF ............................................535

Introduction................................................................................535Principle of operation.................................................................535Function block...........................................................................537Input and output signals............................................................537Setting parameters....................................................................538Technical data...........................................................................538

Fuse failure supervision SDDRFUF...............................................538Introduction................................................................................538Principle of operation.................................................................539

Zero and negative sequence detection................................539Delta current and delta voltage detection.............................543Dead line detection...............................................................545Main logic.............................................................................545

Function block...........................................................................549Input and output signals............................................................549Setting parameters....................................................................549Technical data...........................................................................550

Section 12 Control..........................................................................553Synchrocheck, energizing check, and synchronizingSESRSYN......................................................................................553

Introduction................................................................................553Principle of operation.................................................................554

Basic functionality.................................................................554Logic diagrams.....................................................................554

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Function block...........................................................................563Input and output signals............................................................563Setting parameters....................................................................566Technical data...........................................................................569

Autorecloser SMBRREC ...............................................................569Introduction................................................................................570Principle of operation.................................................................570

Logic Diagrams....................................................................570Auto-reclosing operation Off and On....................................570Auto-reclosing mode selection.............................................570Start auto-reclosing and conditions for start of areclosing cycle......................................................................571Control of the auto-reclosing open time for shot 1...............572Long trip signal.....................................................................572Time sequence diagrams.....................................................579

Function block...........................................................................582Input and output signals............................................................582Setting parameters....................................................................584Technical data...........................................................................586

Apparatus control APC...................................................................586Introduction................................................................................586Principle of operation.................................................................586Error handling............................................................................587Bay control QCBAY...................................................................589

Introduction...........................................................................589Principle of operation............................................................589Function block......................................................................591Input and output signals.......................................................591Setting parameters...............................................................592

Local/Remote switch.................................................................592Introduction...........................................................................592Principle of operation............................................................592Function block......................................................................594Input and output signals.......................................................594Setting parameters...............................................................595

Switch controller SCSWI...........................................................595Introduction...........................................................................596Principle of operation............................................................596Function block......................................................................601Input and output signals.......................................................601Setting parameters...............................................................602

Circuit breaker SXCBR..............................................................602Introduction...........................................................................603

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Principle of operation............................................................603Function block......................................................................607Input and output signals.......................................................607Setting parameters...............................................................608

Circuit switch SXSWI.................................................................608Introduction...........................................................................608Principle of operation............................................................608Function block......................................................................612Input and output signals.......................................................612Setting parameters...............................................................613

Bay reserve QCRSV..................................................................613Introduction...........................................................................614Principle of operation............................................................614Function block......................................................................616Input and output signals.......................................................617Setting parameters...............................................................618

Reservation input RESIN...........................................................618Introduction...........................................................................618Principle of operation............................................................618Function block......................................................................620Input and output signals.......................................................621Setting parameters...............................................................622

Interlocking ....................................................................................622Introduction................................................................................622Principle of operation.................................................................622Logical node for interlocking SCILO .........................................625

Introduction...........................................................................625Logic diagram.......................................................................625Function block......................................................................626Input and output signals.......................................................626

Interlocking for busbar earthing switch BB_ES .........................626Introduction...........................................................................627Function block......................................................................627Logic diagram.......................................................................627Input and output signals.......................................................627

Interlocking for bus-section breaker A1A2_BS..........................628Introduction...........................................................................628Function block......................................................................629Logic diagram.......................................................................630Input and output signals.......................................................631

Interlocking for bus-section disconnector A1A2_DC ................632Introduction...........................................................................633Function block......................................................................633

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Logic diagram.......................................................................634Input and output signals.......................................................634

Interlocking for bus-coupler bay ABC_BC ................................635Introduction...........................................................................635Function block......................................................................636Logic diagram.......................................................................637Input and output signals.......................................................639

Interlocking for 1 1/2 CB BH .....................................................642Introduction...........................................................................642Function blocks....................................................................643Logic diagrams.....................................................................645Input and output signals.......................................................650

Interlocking for double CB bay DB ...........................................654Introduction...........................................................................654Function block......................................................................655Logic diagrams.....................................................................657Input and output signals ......................................................660

Interlocking for line bay ABC_LINE ..........................................663Introduction...........................................................................663Function block......................................................................664Logic diagram.......................................................................665Input and output signals.......................................................670

Interlocking for transformer bay AB_TRAFO ............................672Introduction...........................................................................673Function block......................................................................674Logic diagram.......................................................................675Input and output signals.......................................................676

Position evaluation POS_EVAL.................................................678Introduction...........................................................................678Logic diagram.......................................................................678Function block......................................................................679Input and output signals.......................................................679

Logic rotating switch for function selection and LHMIpresentation SLGGIO.....................................................................679

Introduction................................................................................679Principle of operation.................................................................679

Functionality and behaviour ................................................681Graphical display..................................................................681

Function block...........................................................................683Input and output signals............................................................683Setting parameters....................................................................684

Selector mini switch VSGGIO.........................................................685Introduction................................................................................685

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Principle of operation.................................................................685Function block...........................................................................686Input and output signals............................................................686Setting parameters....................................................................687

Generic double point function block DPGGIO................................687Introduction................................................................................687Principle of operation.................................................................687Function block...........................................................................688Input and output signals............................................................688Settings......................................................................................688

Single point generic control 8 signals SPC8GGIO.........................688Introduction................................................................................688Principle of operation.................................................................689Function block...........................................................................689Input and output signals............................................................689Setting parameters....................................................................690

AutomationBits, command function for DNP3.0 AUTOBITS..........690Introduction................................................................................691Principle of operation.................................................................691Function block...........................................................................692Input and output signals............................................................692Setting parameters....................................................................693

Single command, 16 signals SINGLECMD....................................707Introduction................................................................................707Principle of operation.................................................................707Function block...........................................................................708Input and output signals............................................................708Setting parameters....................................................................709

Section 13 Scheme communication...............................................711Scheme communication logic for distance or overcurrentprotection ZCPSCH .......................................................................711

Introduction................................................................................711Principle of operation.................................................................712

Blocking scheme..................................................................712Permissive underreaching scheme......................................712Permissive overreaching scheme........................................713Unblocking scheme..............................................................713Intertrip scheme....................................................................714Simplified logic diagram.......................................................714

Function block...........................................................................716Input and output signals............................................................716Setting parameters....................................................................717Technical data...........................................................................717

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Phase segregated scheme communication logic for distanceprotection ZC1PPSCH ...................................................................718

Introduction................................................................................718Principle of operation.................................................................718

Blocking scheme..................................................................719Permissive underreach scheme...........................................719Permissive overreach scheme.............................................720Unblocking scheme..............................................................720Intertrip scheme....................................................................720Simplified logic diagram.......................................................721

Function block...........................................................................722Input and output signals............................................................722Setting parameters....................................................................724Technical data...........................................................................724

Current reversal and weak-end infeed logic for distanceprotection ZCRWPSCH .................................................................724

Introduction................................................................................724Principle of operation.................................................................725

Current reversal logic...........................................................725Weak-end infeed logic..........................................................725

Function block...........................................................................727Input and output signals............................................................727Setting parameters....................................................................728Technical data...........................................................................728

Local acceleration logic ZCLCPLAL...............................................728Introduction................................................................................729Principle of operation.................................................................729

Zone extension.....................................................................729Loss-of-Load acceleration....................................................730

Function block...........................................................................730Input and output signals............................................................731Setting parameters....................................................................731

Scheme communication logic for residual overcurrentprotection ECPSCH .......................................................................732

Introduction................................................................................732Principle of operation.................................................................732

Blocking scheme..................................................................733Permissive under/overreaching scheme..............................733Unblocking scheme..............................................................735

Function block...........................................................................736Input and output signals............................................................737Setting parameters....................................................................737Technical data...........................................................................738

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Current reversal and weak-end infeed logic for residualovercurrent protection ECRWPSCH...............................................738

Introduction................................................................................738Principle of operation.................................................................739

Directional comparison logic function...................................739Fault current reversal logic...................................................739Weak-end infeed logic..........................................................740

Function block...........................................................................741Input and output signals............................................................741Setting parameters....................................................................742Technical data...........................................................................742

Current reversal and weak-end infeed logic for phasesegregated communication ZC1WPSCH ......................................743

Introduction................................................................................743Principle of operation.................................................................743

Current reversal logic ..........................................................743Function block...........................................................................745Input and output signals............................................................746Setting parameters....................................................................747Technical data...........................................................................747

Direct transfer trip logic...................................................................747Introduction................................................................................748Low active power and power factor protection LAPPGAPC......749

Introduction...........................................................................749Principle of operation............................................................750Function block......................................................................752Input and output signals.......................................................752Setting parameters...............................................................753Technical data......................................................................753

Compensated over and undervoltage protectionCOUVGAPC..............................................................................754

Introduction...........................................................................754Principle of operation............................................................754Function block......................................................................756Input and output signals.......................................................756Setting parameters...............................................................757Technical data......................................................................758

Sudden change in current variation SCCVPTOC......................758Introduction...........................................................................759Principle of operation............................................................759Function block......................................................................760Input and output signals.......................................................760Setting parameters...............................................................760Technical data......................................................................761

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20Technical reference manual

Carrier receive logic LCCRPTRC..............................................761Introduction...........................................................................761Principle of operation............................................................761Function block......................................................................762Input and output signals.......................................................762Setting parameters...............................................................763Technical data......................................................................763

Negative sequence overvoltage protection LCNSPTOV...........763Introduction...........................................................................763Principle of operation............................................................763Function block......................................................................764Input and output signals.......................................................764Setting parameters...............................................................764Technical data......................................................................765

Zero sequence overvoltage protection LCZSPTOV..................765Introduction...........................................................................765Principle of operation............................................................765Function block......................................................................766Input and output signals.......................................................766Setting parameters...............................................................766Technical data......................................................................767

Negative sequence overcurrent protection LCNSPTOC...........767Introduction...........................................................................767Principle of operation............................................................767Function block......................................................................768Input and output signals.......................................................768Setting parameters...............................................................768Technical data......................................................................769

Zero sequence overcurrent protection LCZSPTOC..................769Introduction...........................................................................769Principle of operation............................................................769Function block......................................................................770Input and output signals.......................................................770Setting parameters...............................................................770Technical data......................................................................771

Three phase overcurrent LCP3PTOC.......................................771Introduction...........................................................................771Principle of operation............................................................771Function block......................................................................772Input and output signals.......................................................772Setting parameters...............................................................773Technical data......................................................................773

Three phase undercurrent LCP3PTUC.....................................773

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21Technical reference manual

Introduction...........................................................................773Principle of operation............................................................774Function block......................................................................774Input and output signals.......................................................774Setting parameters...............................................................775Technical data......................................................................775

Section 14 Logic.............................................................................777Tripping logic SMPPTRC ...............................................................777

Introduction................................................................................777Principle of operation.................................................................777

Logic diagram.......................................................................779Function block...........................................................................782Input and output signals............................................................782Setting parameters....................................................................783Technical data...........................................................................784

Trip matrix logic TMAGGIO............................................................784Introduction................................................................................784Principle of operation.................................................................784Function block...........................................................................786Input and output signals............................................................786Setting parameters....................................................................787

Configurable logic blocks................................................................788Introduction................................................................................788Inverter function block INV........................................................788OR function block OR................................................................789AND function block AND...........................................................790Timer function block TIMER......................................................790Pulse timer function block PULSETIMER..................................791Exclusive OR function block XOR.............................................791Loop delay function block LOOPDELAY...................................792Set-reset with memory function block SRMEMORY.................792Reset-set with memory function block RSMEMORY.................793Controllable gate function block GATE......................................794Settable timer function block TIMERSET..................................795Technical data...........................................................................796

Fixed signal function block FXDSIGN............................................796Principle of operation.................................................................796Function block...........................................................................797Input and output signals............................................................797Setting parameters....................................................................797

Boolean 16 to Integer conversion B16I..........................................798Introduction................................................................................798Principle of operation.................................................................798

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Function block...........................................................................798Input and output signals............................................................798Setting parameters....................................................................799

Boolean 16 to Integer conversion with logic noderepresentation B16IFCVI................................................................799

Introduction................................................................................799Principle of operation.................................................................800Function block...........................................................................800Input and output signals............................................................800Setting parameters....................................................................801

Integer to Boolean 16 conversion IB16..........................................801Introduction................................................................................801Principle of operation.................................................................801Function block...........................................................................802Input and output signals............................................................802Setting parameters....................................................................803

Integer to Boolean 16 conversion with logic noderepresentation IB16FCVB...............................................................803

Introduction................................................................................803Principle of operation.................................................................803Function block...........................................................................804Input and output signals............................................................804Setting parameters....................................................................805

Section 15 Monitoring.....................................................................807Measurements................................................................................807

Introduction................................................................................808Principle of operation.................................................................809

Measurement supervision....................................................809Measurements CVMMXN.....................................................813Phase current measurement CMMXU.................................818Phase-phase and phase-neutral voltage measurementsVMMXU, VNMMXU..............................................................819Voltage and