ABB RELION REB670 Applications Manual

RELION® 670 SERIES

—

Busbar protection REB670

Version 2.2 ANSI

Application manual

Document ID: 1MRK 505 370-UUS

Issued: October 2017

Revision: A

Product version: 2.2.1

Copyright

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

permission from ABB, and the contents thereof must not be imparted to a third party,

nor used for any unauthorized purpose.

The software and hardware described in this document is furnished under a license and

may be used or disclosed only in accordance with the terms of such license.

This product includes software developed by the OpenSSL Project for use in the

OpenSSL T

oolkit. (http://www.openssl.org/) This product includes cryptographic

software written/developed by: Eric Young ([email protected]) and Tim Hudson

([email protected]).

Trademarks

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

product names mentioned in this document may be trademarks or registered

trademarks of their respective holders.

Warranty

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

Disclaimer

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

product description and are not to be deemed as a statement of guaranteed properties.

All persons responsible for applying the equipment addressed in this manual must

satisfy themselves that each intended application is suitable and acceptable, including

that any applicable safety or other operational requirements are complied with. In

particular, any risks in applications where a system failure and/or product failure would

create a risk for harm to property or persons (including but not limited to personal

injuries or death) shall be the sole responsibility of the person or entity applying the

equipment, and those so responsible are hereby requested to ensure that all measures

are taken to exclude or mitigate such risks.

This document has been carefully checked by ABB but deviations cannot be

completely ruled out. In case any errors are detected, the reader is kindly requested to

notify the manufacturer

. Other than under explicit contractual commitments, in no

event shall ABB be responsible or liable for any loss or damage resulting from the use

of this manual or the application of the equipment.

Conformity

This product complies with the directive of the Council of the European Communities

on the approximation of the laws of the Member States relating to electromagnetic

compatibility (EMC Directive 2004/108/EC) and concerning electrical equipment for

use within specified voltage limits (Low-voltage directive 2006/95/EC). This

conformity is the result of tests conducted by ABB in accordance with the product

standard EN 60255-26 for the EMC directive, and with the product standards EN

60255-1 and EN 60255-27 for the low voltage directive. The product is designed in

accordance with the international standards of the IEC 60255 series and ANSI

C37.90.

Table of contents

Section 1 Introduction

..........................................................................19

This manual............................................................................................ 19

Intended audience.................................................................................. 19

Product documentation...........................................................................20

Product documentation set................................................................20

Document revision history................................................................. 21

Related documents............................................................................22

Document symbols and conventions...................................................... 22

Symbols.............................................................................................22

Document conventions...................................................................... 23

IEC 61850 edition 1 / edition 2 mapping.................................................24

Section 2 Application...........................................................................35

General IED application..........................................................................35

Main protection functions........................................................................39

Back-up protection functions.................................................................. 40

Control and monitoring functions............................................................ 42

Communication.......................................................................................47

Basic IED functions.................................................................................49

Section 3 Configuration....................................................................... 51

Description of configuration REB670......................................................51

Available ACT configurations for pre-configured REB670.................51

Configuration X01..............................................................................51

Configuration X02..............................................................................52

Configuration X03..............................................................................52

Description of 3 ph package A20A.................................................... 52

Description of 3 ph package A31A.................................................... 54

Description of 1 ph package B20A.................................................... 58

Description of 1 ph package B31A.................................................... 62

Section 4 Analog inputs.......................................................................67

Introduction............................................................................................. 67

Setting guidelines................................................................................... 67

Setting of the phase reference channel.............................................67

Example........................................................................................68

Setting of current channels................................................................68

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Busbar protection REB670 2.2 ANSI 1

Application manual

Example 1.....................................................................................69

Example 2.....................................................................................

69

Example 3.....................................................................................70

Examples on how to connect, configure and set CT inputs

for most commonly used CT connections

.................................... 73

Example on how to connect a wye connected three-phase

CT set to the IED.......................................................................... 74

Example how to connect delta connected three-phase CT

set to the IED................................................................................79

Example how to connect single-phase CT to the IED.................. 82

Relationships between setting parameter Base Current, CT

rated primary current and minimum pickup of a protection IED........ 84

Setting of voltage channels............................................................... 84

Example........................................................................................85

Examples how to connect, configure and set VT inputs for

most commonly used VT connections..........................................85

Examples on how to connect a three phase-to-ground

connected VT to the IED.............................................................. 86

Example on how to connect a phase-to-phase connected

VT to the IED................................................................................ 88

Example on how to connect an open delta VT to the IED for

high impedance grounded or ungrounded networks.................... 90

Example how to connect the open delta VT to the IED for

low impedance grounded or solidly grounded power systems..... 93

Section 5 Local HMI............................................................................ 97

Display.................................................................................................... 98

LEDs..................................................................................................... 101

Keypad..................................................................................................102

Local HMI functionality..........................................................................104

Protection and alarm indication....................................................... 104

Parameter management .................................................................105

Front communication....................................................................... 106

Section 6 Differential protection........................................................ 107

Busbar differential protection ............................................................... 107

Identification.................................................................................... 107

Basic applications............................................................................109

General.......................................................................................109

Meshed corner application and T-connection application.......... 109

Busbar protection applications........................................................ 109

General.......................................................................................110

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2 Busbar protection REB670 2.2 ANSI

Application manual

Differential protection..................................................................111

Check zone protection

................................................................114

Switch status monitoring

.............................................................116

CT connection control.................................................................120

CT disconnection for bus interconnector CT cores.................... 122

End fault protection.....................................................................127

Zone interconnection (Load transfer)......................................... 130

Tripping arrangements............................................................... 132

Mechanical lock-out function...................................................... 135

Contact reinforcement with heavy duty relays............................135

Trip circuit supervision................................................................135

Two-zone busbar arrangements......................................................136

General.......................................................................................136

Single busbar arrangements...................................................... 136

Single busbar arrangements with sectionalizer.......................... 137

Single busbar arrangements with bus-section breaker.............. 138

H-type busbar arrangements......................................................139

Double circuit breaker busbar arrangement............................... 141

Breaker-and-a-half busbar arrangements.................................. 143

Double busbar single breaker arrangement............................... 145

Double busbar arrangements with two bus-section breakers

and two bus-coupler breakers.................................................... 151

Combined busbar arrangements................................................ 152

Six-zone busbar arrangements....................................................... 155

General.......................................................................................155

Typical arrangement which can be covered............................... 155

Example engineering procedure.................................................157

Summation principle........................................................................ 163

Introduction.................................................................................163

Auxiliary summation CTs............................................................166

Possible ASCT connections for REB670....................................168

Main CT ratio mismatch correction.............................................169

Primary pick-up levels for summation type differential

protection ...................................................................................169

SLCE 8/ASCT characteristics for end-connection......................172

SLCE 8/ASCT characteristics for series-connection.................. 173

Section 7 Current protection..............................................................175

Directional phase overcurrent protection, four steps

OC4PTOC(51_67)................................................................................ 175

Identification.................................................................................... 175

Table of contents

Busbar protection REB670 2.2 ANSI 3

Application manual

Application....................................................................................... 175

Setting guidelines

............................................................................ 177

Settings for each step.................................................................178

Setting example

..........................................................................182

Four step single phase overcurrent protection PH4SPTOC (51)..........187

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

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

Setting guidelines............................................................................ 188

Settings for each step (x = 1-4).................................................. 189

Second harmonic restrain...........................................................191

Directional residual overcurrent protection, four steps EF4PTOC

(51N/67N)............................................................................................. 197

Identification.................................................................................... 197

Setting guidelines............................................................................ 197

Common settings for all steps.................................................... 198

2nd harmonic restrain.................................................................199

Parallel transformer inrush current logic.....................................200

Switch onto fault logic.................................................................201

Settings for each step (x = 1, 2, 3 and 4)................................... 202

Four step directional negative phase sequence overcurrent

protection NS4PTOC (46I2)..................................................................204

Identification.................................................................................... 204

Application....................................................................................... 204

Setting guidelines............................................................................ 206

Settings for each step ................................................................207

Common settings for all steps.................................................... 210

Thermal overload protection, two time constants TRPTTR (49)...........211

Identification.................................................................................... 211

Application....................................................................................... 211

Setting guideline.............................................................................. 212

Breaker failure protection CCRBRF(50BF)...........................................215

Identification.................................................................................... 215

Application....................................................................................... 215

Setting guidelines............................................................................ 215

Breaker failure protection, single phase version CCSRBRF (50BF).... 219

Identification.................................................................................... 219

Application....................................................................................... 219

Setting guidelines............................................................................ 219

Directional underpower protection GUPPDUP (37)..............................222

Identification.................................................................................... 222

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4 Busbar protection REB670 2.2 ANSI

Application manual

Application....................................................................................... 222

Setting guidelines

............................................................................ 224

Directional overpower protection GOPPDOP

(32)................................228

Identification.................................................................................... 228

Application....................................................................................... 228

Setting guidelines............................................................................ 230

Capacitor bank protection CBPGAPC.................................................. 234

Identification.................................................................................... 234

Application....................................................................................... 235

SCB protection........................................................................... 237

Setting guidelines............................................................................ 239

Restrike detection.......................................................................241

Section 8 Voltage protection............................................................. 243

Two step undervoltage protection UV2PTUV (27)................................243

Identification.................................................................................... 243

Setting guidelines............................................................................ 243

Equipment protection, such as for motors and generators.........243

Disconnected equipment detection............................................ 244

Power supply quality ..................................................................244

Voltage instability mitigation....................................................... 244

Backup protection for power system faults.................................244

Settings for two step undervoltage protection............................ 244

Two step overvoltage protection OV2PTOV (59)................................. 246

Identification.................................................................................... 246

Application....................................................................................... 246

Setting guidelines............................................................................ 247

Equipment protection, such as for motors, generators,

reactors and transformers.......................................................... 248

Equipment protection, capacitors............................................... 248

Power supply quality...................................................................248

High impedance grounded systems........................................... 248

The following settings can be done for the two step

overvoltage protection................................................................ 248

Two step residual overvoltage protection ROV2PTOV (59N)...............250

Identification.................................................................................... 250

Application....................................................................................... 251

Setting guidelines............................................................................ 251

Equipment protection, such as for motors, generators,

reactors and transformersEquipment protection

for transformers.......................................................................... 251

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Busbar protection REB670 2.2 ANSI 5

Application manual

Equipment protection, capacitors............................................... 252

Power supply quality

...................................................................252

High impedance grounded systems

........................................... 252

Direct grounded system..............................................................253

Settings for two step residual overvoltage protection................. 254

Voltage differential protection VDCPTOV (60)..................................... 256

Identification.................................................................................... 256

Application....................................................................................... 256

Setting guidelines............................................................................ 257

Loss of voltage check LOVPTUV (27).................................................. 259

Identification.................................................................................... 259

Application....................................................................................... 259

Setting guidelines............................................................................ 259

Advanced users settings............................................................ 259

Section 9 Frequency protection.........................................................261

Underfrequency protection SAPTUF (81).............................................261

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

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

Setting guidelines............................................................................ 262

Overfrequency protection SAPTOF (81)...............................................262

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

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

Setting guidelines............................................................................ 263

Rate-of-change of frequency protection SAPFRC (81)........................ 264

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

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

Setting guidelines............................................................................ 265

Section 10 Multipurpose protection..................................................... 267

General current and voltage protection CVGAPC................................ 267

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

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

Current and voltage selection for CVGAPC function..................268

Base quantities for CVGAPC function........................................ 271

Application possibilities...............................................................271

Inadvertent generator energization.............................................272

Setting guidelines............................................................................ 273

Directional negative sequence overcurrent protection............... 273

Negative sequence overcurrent protection.................................275

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6 Busbar protection REB670 2.2 ANSI

Application manual

Generator stator overload protection in accordance with IEC

or ANSI standards......................................................................

278

Open phase protection for transformer, lines or generators

and circuit breaker head flashover protection for generators

..... 280

Voltage restrained overcurrent protection for generator and

step-up transformer.................................................................... 281

Loss of excitation protection for a generator.............................. 281

Section 11 Secondary system supervision..........................................285

Fuse failure supervision FUFSPVC...................................................... 285

Identification.................................................................................... 285

Application....................................................................................... 285

Setting guidelines............................................................................ 286

General.......................................................................................286

Setting of common parameters.................................................. 286

Negative sequence based.......................................................... 287

Zero sequence based.................................................................288

Delta V and delta I ..................................................................... 289

Dead line detection.....................................................................289

Fuse failure supervision VDSPVC (60).................................................289

Identification.................................................................................... 290

Application....................................................................................... 290

Setting guidelines............................................................................ 291

Section 12 Control...............................................................................293

Synchronism check, energizing check, and synchronizing

SESRSYN (25)..................................................................................... 293

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

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

Synchronizing............................................................................. 293

Synchronism check.................................................................... 295

Energizing check........................................................................ 297

Voltage selection........................................................................ 298

External fuse failure....................................................................299

Application examples.......................................................................300

Single circuit breaker with single busbar.................................... 301

Single circuit breaker with double busbar, external voltage

selection..................................................................................... 302

Single circuit breaker with double busbar, internal voltage

selection..................................................................................... 303

Double circuit breaker.................................................................304

Table of contents

Busbar protection REB670 2.2 ANSI 7

Application manual

Breaker-and-a-half......................................................................305

Setting guidelines

............................................................................ 308

Autorecloser for 1 phase, 2 phase and/or 3 phase operation

SMBRREC (79)

.................................................................................... 313

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

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

Auto reclosing operation Off and On.......................................... 318

Initiate auto reclosing and conditions for start of a reclosing

cycle........................................................................................... 318

Initiate auto reclosing from circuit breaker open information...... 319

Blocking of the auto recloser...................................................... 319

Control of the auto reclosing dead time for shot 1......................319

Long trip signal........................................................................... 320

Maximum number of reclosing shots..........................................320

ARMode

=

3ph,

(normal setting for a three-phase shot)............ 320

ARMode

=

1/2/3ph

..................................................................... 321

ARMode

=

1/2ph

, 1-phase or 2-phase reclosing in the

first shot...................................................................................... 321

ARMode

= 1ph+1*2ph, 1-phase or 2-phase reclosing in the

first shot...................................................................................... 321

ARMode = 1/2ph + 1*3ph, 1-phase, 2-phase or 3-phase

reclosing in the first shot.............................................................322

ARMode

= 1ph + 1*2/3ph, 1-phase, 2-phase or 3-phase

reclosing in the first shot.............................................................322

External selection of auto reclosing mode..................................323

Auto reclosing reset timer...........................................................323

Pulsing of the circuit breaker closing command and counter..... 323

Transient fault.............................................................................324

Permanent fault and reclosing unsuccessful signal....................324

Lock-out initiation........................................................................324

Evolving fault.............................................................................. 326

Automatic continuation of the auto reclosing sequence............. 326

Thermal overload protection holding the auto recloser back......327

Setting guidelines............................................................................ 327

Configuration.............................................................................. 327

Auto recloser settings................................................................. 336

Apparatus control APC......................................................................... 341

Application....................................................................................... 341

Bay control QCBAY.................................................................... 347

Switch controller SCSWI............................................................ 348

Switches SXCBR/SXSWI........................................................... 348

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8 Busbar protection REB670 2.2 ANSI

Application manual

Proxy for signals from switching device via GOOSE

XLNPROXY................................................................................

349

Reservation function (QCRSV and RESIN)

................................352

Interaction between modules...........................................................354

Setting guidelines............................................................................ 358

Bay control (QCBAY)..................................................................358

Switch controller (SCSWI).......................................................... 358

Switch (SXCBR/SXSWI).............................................................359

Proxy for signals from switching device via GOOSE

XLNPROXY................................................................................ 360

Bay Reserve (QCRSV)...............................................................361

Reservation input (RESIN)......................................................... 361

Interlocking (3)...................................................................................... 361

Configuration guidelines.................................................................. 362

Interlocking for line bay ABC_LINE (3)............................................ 363

Application.................................................................................. 363

Signals from bypass busbar....................................................... 363

Signals from bus-coupler............................................................364

Configuration setting...................................................................368

Interlocking for bus-coupler bay ABC_BC (3)..................................369

Application.................................................................................. 369

Configuration.............................................................................. 369

Signals from all feeders.............................................................. 369

Signals from bus-coupler............................................................372

Configuration setting...................................................................373

Interlocking for transformer bay AB_TRAFO (3)..............................374

Application.................................................................................. 374

Signals from bus-coupler............................................................375

Configuration setting...................................................................376

Interlocking for bus-section breaker A1A2_BS (3)...........................377

Application.................................................................................. 377

Signals from all feeders.............................................................. 377

Configuration setting...................................................................380

Interlocking for bus-section disconnector A1A2_DC (3).................. 381

Application.................................................................................. 381

Signals in single breaker arrangement....................................... 381

Signals in double-breaker arrangement..................................... 384

Signals in breaker and a half arrangement.................................387

Interlocking for busbar grounding switch BB_ES (3)....................... 388

Application.................................................................................. 388

Table of contents

Busbar protection REB670 2.2 ANSI 9

Application manual

Signals in single breaker arrangement....................................... 389

Signals in double-breaker arrangement

.....................................

393

Signals in breaker and a half arrangement.................................394

Interlocking for double CB bay DB (3)............................................. 395

Application.................................................................................. 395

Configuration setting...................................................................395

Interlocking for breaker-and-a-half diameter BH (3)........................ 396

Application.................................................................................. 396

Configuration setting...................................................................397

Logic rotating switch for function selection and LHMI presentation

SLGAPC............................................................................................... 398

Identification.................................................................................... 398

Application....................................................................................... 398

Setting guidelines............................................................................ 399

Selector mini switch VSGAPC.............................................................. 399

Identification.................................................................................... 399

Application....................................................................................... 399

Setting guidelines............................................................................ 400

Generic communication function for Double Point indication

DPGAPC...............................................................................................400

Identification.................................................................................... 401

Application....................................................................................... 401

Setting guidelines............................................................................ 402

Single point generic control 8 signals SPC8GAPC...............................402

Identification.................................................................................... 402

Application....................................................................................... 402

Setting guidelines............................................................................ 402

AutomationBits, command function for DNP3.0 AUTOBITS................ 403

Identification.................................................................................... 403

Application....................................................................................... 403

Setting guidelines............................................................................ 403

Single command, 16 signals SINGLECMD.......................................... 403

Identification.................................................................................... 404

Application....................................................................................... 404

Setting guidelines............................................................................ 405

Section 13 Logic..................................................................................407

Trip matrix logic TMAGAPC..................................................................407

Identification.................................................................................... 407

Application....................................................................................... 407

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10 Busbar protection REB670 2.2 ANSI

Application manual

Setting guidelines............................................................................ 407

Logic for group alarm ALMCALH

..........................................................

408

Identification.................................................................................... 408

Application....................................................................................... 408

Setting guidelines............................................................................ 408

Logic for group alarm WRNCALH.........................................................408

Identification.................................................................................... 408

Application.................................................................................. 408

Setting guidelines....................................................................... 409

Logic for group indication INDCALH.....................................................409

Identification.................................................................................... 409

Application.................................................................................. 409

Setting guidelines....................................................................... 409

Configurable logic blocks......................................................................409

Application....................................................................................... 410

Setting guidelines............................................................................ 410

Configuration.............................................................................. 410

Fixed signal function block FXDSIGN...................................................412

Identification.................................................................................... 412

Application....................................................................................... 412

Boolean 16 to Integer conversion B16I.................................................413

Identification.................................................................................... 413

Application....................................................................................... 413

Boolean to integer conversion with logical node representation, 16

bit BTIGAPC......................................................................................... 414

Identification.................................................................................... 415

Application....................................................................................... 415

Integer to Boolean 16 conversion IB16.................................................416

Identification.................................................................................... 416

Application....................................................................................... 416

Integer to Boolean conversion for six-zone busbar BCTZCONN......... 417

Identification.................................................................................... 417

Application....................................................................................... 418

Integer to Boolean 16 conversion with logic node representation

ITBGAPC.............................................................................................. 419

Identification.................................................................................... 419

Application....................................................................................... 419

Elapsed time integrator with limit transgression and overflow

supervision TEIGAPC...........................................................................420

Identification.................................................................................... 420

Table of contents

Busbar protection REB670 2.2 ANSI 11

Application manual

Application....................................................................................... 421

Setting guidelines

............................................................................ 421

Comparator for integer inputs - INTCOMP

........................................... 421

Identification.................................................................................... 421

Application....................................................................................... 422

Setting guidelines............................................................................ 422

Setting example...............................................................................422

Comparator for real inputs - REALCOMP.............................................423

Identification.................................................................................... 423

Application....................................................................................... 423

Setting guidelines............................................................................ 423

Setting example...............................................................................424

Section 14 Monitoring..........................................................................427

Measurement........................................................................................427

Identification.................................................................................... 427

Application....................................................................................... 428

Zero clamping..................................................................................429

Setting guidelines............................................................................ 430

Setting examples........................................................................ 433

Gas medium supervision SSIMG (63).................................................. 440

Identification.................................................................................... 440

Application....................................................................................... 440

Setting guidelines............................................................................ 441

Liquid medium supervision SSIML (71)................................................ 442

Identification.................................................................................... 442

Application....................................................................................... 442

Setting guidelines............................................................................ 442

Breaker monitoring SSCBR.................................................................. 443

Identification.................................................................................... 443

Application....................................................................................... 443

Setting guidelines............................................................................ 447

Setting procedure on the IED..................................................... 447

Event function EVENT.......................................................................... 448

Identification.................................................................................... 448

Application....................................................................................... 448

Setting guidelines............................................................................ 449

Disturbance report DRPRDRE............................................................. 449

Identification.................................................................................... 450

Application....................................................................................... 450

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12 Busbar protection REB670 2.2 ANSI

Application manual

Setting guidelines............................................................................ 451

Recording times

..........................................................................454

Binary input signals

.................................................................... 454

Analog input signals................................................................... 455

Sub-function parameters............................................................ 456

Consideration............................................................................. 456

Logical signal status report BINSTATREP........................................... 457

Identification.................................................................................... 457

Application....................................................................................... 458

Setting guidelines............................................................................ 458

Limit counter L4UFCNT........................................................................ 458

Identification.................................................................................... 458

Application....................................................................................... 459

Setting guidelines............................................................................ 459

Running hour-meter TEILGAPC........................................................... 459

Identification.................................................................................... 459

Application....................................................................................... 459

Setting guidelines............................................................................ 460

Section 15 Metering............................................................................ 461

Pulse-counter logic PCFCNT................................................................461

Identification.................................................................................... 461

Application....................................................................................... 461

Setting guidelines............................................................................ 461

Function for energy calculation and demand handling ETPMMTR...... 462

Identification.................................................................................... 462

Application....................................................................................... 462

Setting guidelines............................................................................ 463

Section 16 Ethernet-based communication.........................................465

Access point......................................................................................... 465

Application....................................................................................... 465

Setting guidelines............................................................................ 465

Redundant communication................................................................... 467

Identification.................................................................................... 467

Application....................................................................................... 467

Setting guidelines............................................................................ 469

Merging unit.......................................................................................... 470

Application....................................................................................... 470

Setting guidelines............................................................................ 471

Routes.................................................................................................. 471

Table of contents

Busbar protection REB670 2.2 ANSI 13

Application manual

Application....................................................................................... 471

Setting guidelines

............................................................................ 471

Section 17

Station communication...................................................... 473

Communication protocols..................................................................... 473

IEC 61850-8-1 communication protocol............................................... 473

Application IEC 61850-8-1...............................................................473

Setting guidelines............................................................................ 475

Horizontal communication via GOOSE........................................... 475

Sending data.............................................................................. 475

Receiving data............................................................................476

LON communication protocol............................................................... 478

Application....................................................................................... 478

MULTICMDRCV and MULTICMDSND............................................480

Identification............................................................................... 480

Application.................................................................................. 480

Setting guidelines....................................................................... 480

SPA communication protocol................................................................480

Application....................................................................................... 480

Setting guidelines............................................................................ 482

IEC 60870-5-103 communication protocol........................................... 483

Application....................................................................................... 483

Functionality............................................................................... 483

Design........................................................................................ 484

Settings............................................................................................486

Settings for RS485 and optical serial communication................ 486

Settings from PCM600............................................................... 487

Function and information types....................................................... 489

DNP3 Communication protocol............................................................ 490

Application....................................................................................... 490

Section 18 Remote communication.....................................................491

Binary signal transfer............................................................................ 491

Identification.................................................................................... 491

Application....................................................................................... 491

Communication hardware solutions........................................... 492

Application possibility with one-phase REB670..........................493

Setting guidelines............................................................................ 495

Section 19 Security............................................................................. 499

Authority status ATHSTAT....................................................................499

Table of contents

14 Busbar protection REB670 2.2 ANSI

Application manual

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ABB RELION REB670 Applications Manual

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