Installation and Commisioning Manual REC670

Innovation from ABB

Installation and commissioning manualBay control IEDREC 670 ANSI

Document ID: 1MRK511189-UUSIssued: December 2007

Revision: AIED product version: 1.1

Copyright 2007 ABB. All rights reserved

COPYRIGHTWE RESERVE ALL RIGHTS TO THIS DOCUMENT, EVEN IN THE EVENTTHAT A PATENT IS ISSUED AND A DIFFERENT COMMERCIALPROPRIETARY RIGHT IS REGISTERED. IMPROPER USE, IN PARTICULARREPRODUCTION AND DISSEMINATION TO THIRD PARTIES, IS NOTPERMITTED.THIS DOCUMENT HAS BEEN CAREFULLY CHECKED. HOWEVER, INCASE ANY ERRORS ARE DETECTED, THE READER IS KINDLYREQUESTED TO NOTIFY THE MANUFACTURER AT THE ADDRESSBELOW.THE DATA CONTAINED IN THIS MANUAL IS INTENDED SOLELY FORTHE CONCEPT OR PRODUCT DESCRIPTION AND IS NOT TO BE DEEMEDTO BE A STATEMENT OF GUARANTEED PROPERTIES. IN THE INTERESTOF OUR CUSTOMERS, WE CONSTANTLY SEEK TO ENSURE THAT OURPRODUCTS ARE DEVELOPED TO THE LATEST TECHNOLOGICALSTANDARDS. AS A RESULT, IT IS POSSIBLE THAT THERE MAY BE SOMEDIFFERENCES BETWEEN THE HW/SW PRODUCT AND THISINFORMATION PRODUCT.Manufacturer:

ABB ABSubstation Automation ProductsSE-721 59 VstersSwedenTelephone: +46 (0) 21 34 20 00Facsimile: +46 (0) 21 14 69 18www.abb.com/substationautomation

Table of contents

Section 1 Introduction..........................................................................11Introduction to the installation and commissioning manual....................11

About the complete set of manuals for an IED..................................11About the installation and commissioning manual.............................12Intended audience.............................................................................13Related documents............................................................................13Revision notes...................................................................................14

Section 2 Safety information...............................................................15Warning signs.........................................................................................15Caution signs..........................................................................................16Note signs...............................................................................................17

Section 3 Overview.............................................................................19Commissioning and installation overview...............................................19

Section 4 Unpacking and checking the IED........................................21Taking delivery, unpacking and checking...............................................21

Section 5 Installing the IED.................................................................23Overview.................................................................................................23Dimensions.............................................................................................23

Case without rear cover.....................................................................23Case with rear cover..........................................................................24Flush mounting dimensions...............................................................26Side-by-side flush mounting dimensions...........................................27Wall mounting dimensions.................................................................28

Mounting methods and details................................................................29Mounting the IED...............................................................................29Flush mounting..................................................................................30

Overview.......................................................................................30Mounting procedure for flush mounting........................................31

19 panel rack mounting....................................................................32Overview.......................................................................................32Mounting procedure for 19 panel rack mounting.........................33

Wall mounting....................................................................................34Overview.......................................................................................34

Table of contents

REC 670 ANSI Installation and commissioning manual1MRK511189-UUS rev. A 1

Mounting procedure for wall mounting.........................................34How to reach the rear side of the IED..........................................35

Side-by-side 19 rack mounting.........................................................36Overview.......................................................................................36Mounting procedure for side-by-side rack mounting....................37IED 670 mounted with a RHGS6 case.........................................38

Side-by-side flush mounting..............................................................38Overview.......................................................................................38Mounting procedure for side-by-side flush mounting....................39

Making the electrical connection.............................................................40IED connectors..................................................................................40

Overview.......................................................................................40Front side connectors...................................................................42Rear side connectors....................................................................42Connection diagrams....................................................................47Connection examples...................................................................53

Connecting to protectiveground.........................................................56Connecting the power supply module...............................................57Configuration for analog CT inputs....................................................57Connecting to CT and VT circuits......................................................58Connecting the binary input and output signals.................................59Making the screen connection...........................................................60

Optical connections................................................................................61Connecting station communication interfaces (OEM and SLM)........61Connecting remote communication interfaces (LDCM).....................62

Galvanic X.21 line data communication (X.21-LDCM)...........................63Connecting Galvanic X.21 line data communication module (X.21 LDCM)..........................................................................................63

Installing the serial communication cable for RS485..............................65RS485 serial communication module................................................65Installing the serial communication cable for RS485 SPA/IEC..........69Data on RS485 serial communication module cable.........................70

Installing the GPS antenna.....................................................................71Installing the GPS antenna................................................................71

Antenna installation......................................................................71Electrical installation.....................................................................72

Section 6 Checking the external optical and electricalconnections.........................................................................75Overview.................................................................................................75

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2 Installation and commissioning manual1MRK511189-UUS rev. A REC 670 ANSI

Checking the VT circuits.........................................................................75Check of CT circuits................................................................................76Checking the power supply.....................................................................77Checking the binary I/O circuits..............................................................77

Binary input circuits............................................................................77Binary output circuits.........................................................................77

Checking the optical connections...........................................................77Section 7 Energizing the IED..............................................................79

Overview.................................................................................................79Energizing the IED..................................................................................79Checking the self supervision signals.....................................................82

Reconfiguring the IED.......................................................................82Setting the IED time...........................................................................82Checking the self supervision function..............................................83

Determine the cause of an internal failure....................................83Self supervision HMI data..................................................................83

Section 8 Set up PCM 600 communication link per IED.....................85Set up PCM 600 communication link per IED.........................................85

Section 9 Establishing connection and verifying the SPA/IEC-communication ...................................................................91Entering settings.....................................................................................91

Entering SPA settings........................................................................91Entering IEC settings.........................................................................92

Verifying the communication...................................................................92Verifying SPA communication...........................................................92Verifying IEC communication............................................................93

Fibre optic loop.......................................................................................93Optical budget calculation for serial communication with SPA/IEC .......95

Section 10 Establishing connection and verifying the LONcommunication ...................................................................97Communication via the rear ports ..........................................................97

LON communication..........................................................................97The LON Protocol..............................................................................99Hardware and software modules.......................................................99

Optical budget calculation for serial communication with LON ............101Section 11 Configuring the IED and changing settings.......................103

Overview...............................................................................................103

Table of contents


Entering settings through the local HMI................................................104Analog input data..................................................................................104

Configuration for analog CT inputs..................................................104Downloading settings and configuration from a PC..............................105

Downloading the configuration and setting files..............................105Section 12 Verifying settings by secondary injection .........................107

Overview...............................................................................................107Preparing for test..................................................................................108

Overview..........................................................................................108Preparing the connection to the test equipment..............................109Putting the IED into test mode.........................................................110Connecting test equipment to the IED.............................................110Verifying the connections and the analog inputs.............................111Releasing the function(s) to be tested.............................................112Disturbance report...........................................................................113

Introduction.................................................................................113Disturbance report settings.........................................................113Disturbance recorder (DR).........................................................113Event recorder (ER)....................................................................114

Identifying the function to test in the technical referencemanual ............................................................................................114Exit test mode..................................................................................114

Basic IED functions...............................................................................114Parameter setting groups (ACGR)..................................................114

Verifying the settings..................................................................115Completing the test.....................................................................115

Differential protection............................................................................115High impedance differential protection (PDIF, 87)...........................115


Current protection.................................................................................116Instantaneous phase overcurrent protection (PIOC, 50) ................116

Measuring the operate limit of set values...................................117Completing the test.....................................................................117

Four step phase overcurrent protection (PTOC, 51/67)..................117Verifying the settings..................................................................117Completing the test.....................................................................119

Instantaneous residual overcurrent protection (PIOC, 50N) ...........119Measuring the operate limit of set values...................................119

Table of contents


Completing the test.....................................................................119Four step residual overcurrent protection (PTOC, 51N/67N)..........120

Four step directional overcurrent protection...............................120Four step non-directional overcurrent protection........................120Completing the test.....................................................................121

Sensitive directional residual overcurrent and power protection(PSDE, 67N)....................................................................................121

Measuring the operate and time limit for set values...................122Completing the test.....................................................................127

Thermal overload protection, one time constant (PTTR, 26)...........127Measuring the operate and time limit of set values....................127Completing the test.....................................................................128

Thermal overload protection, two time constants (PTTR, 49) ........128Checking operate and reset values............................................128Completing the test.....................................................................129

Breaker failure protection (RBRF, 50BF).........................................129Checking the phase current operate value, Pickup_PH.............130Checking the residual (GF) current operate valuePickup_N set below Pickup_PH.............................................131Checking the re-trip and back-up times......................................131Verifying the re-trip mode...........................................................131Verifying the back-up trip mode..................................................132Verifying instantaneous back-up trip at CB faultycondition ....................................................................................133Verifying the case FunctionMode = Contact...............................134Verifying the function mode Curr&Cont Check........................134Completing the test.....................................................................135

Stub protection (PTOC, 50STB)......................................................135Measuring the operate limit of set values...................................136Completing the test.....................................................................136

Polediscrepancy protection (RPLD, 52PD)....................................136Verifying the settings..................................................................137Completing the test.....................................................................138

Directional underpower protection (PDUP) ....................................138Verifying the settings..................................................................138Completing the test.....................................................................139

Directional overpower protection (PDOP) ......................................140Verifying the settings..................................................................140Completing the test.....................................................................141

Broken conductor check (BRC).......................................................141

Table of contents


Measuring the operate and time limit of set values....................141Completing the test.....................................................................142

Voltage protection.................................................................................142Two step undervoltage protection (PTUV, 27)................................142


Two step overvoltage protection (PTOV, 59)..................................143Verifying the settings..................................................................143Completing the test.....................................................................144

Two step residual overvoltage protection (PTOV, 59N)..................144Verifying the settings..................................................................144Completing the test.....................................................................144

Voltage differential protection (PTOV, 60).......................................144Check of undervoltage levels.....................................................145Check of voltage differential trip and alarm levels......................147Check of trip and trip reset timers...............................................148Final adjustment of compensation for VT ratio differences .......148Completing the test.....................................................................149

Loss of voltage check (LOV)...........................................................149Measuring the operate limit of set values...................................149Completing the test.....................................................................150

Frequency protection............................................................................150Underfrequency protection (PTUF, 81)...........................................150


Overfrequency protection (PTOF, 81).............................................151Verifying the settings..................................................................151Completing the test.....................................................................152

Rate-of-change frequency protection (PFRC, 81)...........................152Verifying the settings..................................................................152Completing the test.....................................................................153

Multipurpose protection........................................................................153General current and voltage protection (GAPC)..............................153

Built-in overcurrent feature (non-directional)..............................154Overcurrent feature with current restraint...................................154Overcurrent feature with voltage restraint..................................155Overcurrent feature with directionality........................................155Over/Undervoltage feature.........................................................156Completing the test.....................................................................156

Secondary system supervision.............................................................156

Table of contents


Current circuit supervision (RDIF)...................................................156Verifying the settings..................................................................157Completing the test.....................................................................157

Fuse failure supervision (RFUF)......................................................157Checking that the binary inputs and outputs operate asexpected ....................................................................................157Measuring the operate value for the negative sequencefunction ......................................................................................158Measuring the operate value for the zero sequencefunction ......................................................................................159Checking the operation of the duv/dt and di/dt basedfunction ......................................................................................159Completing the test.....................................................................160

Control..................................................................................................160Synchronism-check and energizing check (RSYN, 25)...................160

Testing the synchronizing function.............................................162Testing the synchronism check..................................................164Testing the energizing check......................................................167Testing the voltage selection......................................................168Completing the test.....................................................................169

Autorecloser (RREC, 79).................................................................170Preparation of the verification ....................................................172Switching the auto-reclosing function Enabled andDisabled .....................................................................................173Verifying the auto-reclosing function .........................................173Checking the reclosing conditions .............................................174Completing the test.....................................................................176

Apparatus control (APC)..................................................................176Interlocking......................................................................................176Voltage control (VCTR)...................................................................177

Secondary test............................................................................178Check the activation of the Voltage Control Operation...............179Check normal voltage regulation function..................................180Check the setting of UVBlock.....................................................180Check the setting of parameter UVmin and UVmax...................181Overcurrent blocking..................................................................181Single transformer......................................................................181Parallel voltage regulation..........................................................183Completing the test.....................................................................187

Scheme communication.......................................................................187

Table of contents


Scheme communication logic for distance protection (PSCH,85) ...................................................................................................187

Testing permissive underreach..................................................187Testing permissive overreach.....................................................188Testing blocking scheme............................................................188Checking of unblocking logic......................................................189Completing the test.....................................................................189

Current reversal and weak end infeed logic for distanceprotection (PSCH, 85) ....................................................................189

Current reversal logic.................................................................189Weak end infeed logic................................................................190Completing the test.....................................................................191

Local acceleration logic (PLAL).......................................................191Verifying the settings..................................................................191Completing the test.....................................................................192

Scheme communication logic for residual overcurrent protection(PSCH, 85) .....................................................................................192

Testing the directional comparison logic function.......................192Completing the test.....................................................................194

Current reversal and weak end infeed logic for residualovercurrent protection (PSCH, 85) .................................................194

Testing the current reversal logic...............................................194Testing the weak-end-infeed logic..............................................194Completing the test.....................................................................196

Logic.....................................................................................................196Tripping logic (PTRC, 94)................................................................196

Three phase operating mode.....................................................1961ph/3ph operating mode.............................................................1971ph/2ph/3ph operating mode......................................................197Circuit breaker lockout................................................................198Completing the test.....................................................................199

Monitoring.............................................................................................199Event counter (GGIO)......................................................................199Event function (EV)..........................................................................199Fault locator (RFLO)........................................................................200

Measuring the operate limit........................................................200Completing the test.....................................................................201

Metering................................................................................................202Pulse counter logic (GGIO).............................................................202

Station communication.........................................................................202

Table of contents


Multiple command and trasmit (CM, MT).........................................202Single command (CD).....................................................................202

Remote communication........................................................................202Binary signal transfer to remote end................................................202

Section 13 Primary injection testing....................................................205Primary injection testing........................................................................205

Voltage control (VCTR)...................................................................205Load drop compensation function, LDC.....................................205Testing the LDC function............................................................206Voltage control of Parallel Transformers....................................208Minimum Circulating Current (MCC) method.............................208Master Follower (MF) method....................................................210Completing the test.....................................................................212

Section 14 Commissioning and maintenance of the fault clearingsystem...............................................................................213Installation and commissioning.............................................................213Commissioning tests.............................................................................214Periodic maintenance tests...................................................................214

Visual inspection..............................................................................215Maintenance tests...........................................................................215

Preparation.................................................................................216Recording...................................................................................216Secondary injection....................................................................216Alarm test...................................................................................216Self supervision check................................................................217Trip circuit check.........................................................................217Measurement of service currents...............................................217Restoring....................................................................................218

Section 15 Fault tracing and repair.....................................................219Fault tracing..........................................................................................219

Information on the local HMI............................................................219Using front-connected PC or SMS..................................................221

Repair instruction..................................................................................222Repair support......................................................................................223Maintenance.........................................................................................224

Section 16 Glossary............................................................................225Glossary................................................................................................225

Table of contents


Section 1 Introduction

About this chapterThis chapter introduces the user to the manual.

1.1 Introduction to the installation and commissioningmanual

1.1.1 About the complete set of manuals for an IEDThe users manual (UM) is a complete set of five different manuals:

en06000097.vsd

Applicationmanual

Technicalreference

manual

Installation andcommissioning

manual

Operatorsmanual

Engineeringguide

The Application Manual (AM) contains application descriptions, setting guidelines andsetting parameters sorted per function. The application manual should be used to find outwhen and for what purpose a typical protection function could be used. The manual shouldalso be used when calculating settings.The Technical Reference Manual (TRM) contains application and functionalitydescriptions and it lists function blocks, logic diagrams, input and output signals, settingparameters and technical data sorted per function. The technical reference manual shouldbe used as a technical reference during the engineering phase, installation andcommissioning phase, and during normal service.The Installation and Commissioning Manual (ICM) contains instructions on how toinstall and commission the protection IED. The manual can also be used as a referenceduring periodic testing. The manual covers procedures for mechanical and electricalinstallation, energizing and checking of external circuitry, setting and configuration aswell as verifying settings and performing directional tests. The chapters are organized in

Section 1Introduction


the chronological order (indicated by chapter/section numbers) in which the protectionIED should be installed and commissioned.The Operators Manual (OM) contains instructions on how to operate the protectionIED during normal service once it has been commissioned. The operators manual canbe used to find out how to handle disturbances or how to view calculated and measurednetwork data in order to determine the cause of a fault.The IED 670 Engineering guide (EG) contains instructions on how to engineer the IED670 products. The manual guides to use the different tool components for IED 670engineering. It also guides how to handle the tool component available to read disturbancefiles from the IEDs on the basis of the IEC 61850 definitions. The third part is anintroduction about the diagnostic tool components available for IED 670 products andthe PCM 600 tool.The IEC 61850 Station Engineering guide contains descriptions of IEC 61850 stationengineering and process signal routing. The manual presents the PCM 600 and CCT toolused for station engineering. It describes the IEC 61850 attribute editor and how to setup projects and communication.

1.1.2 About the installation and commissioning manualThe installation and commissioning manual contains the following chapters: The chapter Safety information presents warning and note signs, that the user

should pay attention to. The chapter Overview is a summary of the major tasks faced when installing and

commissioning an IED. The chapter Unpacking and checking the IED explains how to take delivery of

the IED. The chapter Installing the IED explains how to install the IED. The chapter Checking the external optical and electrical connections explains

how to check that the IED is properly connected to the protection system. The chapter Energizing the IED explains how to start the IED. The chapter Establishing connection and verifying the SPA/IEC-communication

contains explains how to enter SPA/IEC settings and verifying the SPA/IECcommunication.

The chapter Establishing connection and verifying the LON communicationcontains a reference to another document.

The chapter Configuring the IED and changing settings explains how to downloadsettings and configure the terminal.

The chapter Verifying settings by secondary injection contains instructions on howto verify that each included function operates correctly according to the set values.



The chapter Commissioning and maintenance of the fault clearing systemdiscusses maintenance tests and other periodic maintenance measures.

The chapter Fault tracing and repair explains how to troubleshoot. The chapter Glossary is a list of terms, acronyms and abbreviations used in ABB

technical documentation.

1.1.3 Intended audienceGeneralThe installation and commissioning manual addresses the personnel responsible for theinstallation, commissioning, maintenance and taking the protection in and out of normalservice.RequirementsThe installation and commissioning personnel must have a basic knowledge in handlingelectronic equipment. The commissioning and maintenance personnel must be wellexperienced in using protection equipment, test equipment, protection functions and theconfigured functional logics in the protection.

1.1.4 Related documentsDocuments related to REC 670 Identity numberOperators manual 1MRK 511 188-UUSInstallation and commissioning manual 1MRK 511 189-UUSTechnical refernce manual 1MRK 511 187-UUSApplication manual 1MRK 511 190-UUSBuyers guide 1MRK 511 192-BUSConnection diagram, Single breaker 1MRK 002 801-FAConnection diagram, Double breaker 1MRK 002 801-MAConnection diagram, breaker-and-a-half CB 1MRK 002 801-NAConfiguration diagram A, Single breaker arr. with single or double busbar 1MRK 004 500-90Configuration diagram B, Double breaker arrangements 1MRK 004 500-91Configuration diagram C, breaker-and-a-half breaker arr. for a full bay 1MRK 004 500-92

Connection and Installation components 1MRK 013 003-BENTest system, COMBITEST 1MRK 512 001-BENAccessories for IED 670 1MRK 514 012-BENGetting started guide IED 670 1MRK 500 080-UUS

Table continued on next page



SPA and LON signal list for IED 670, ver. 1.1 1MRK 500 083-WENIEC 61850 Data objects list for IED 670, ver. 1.1 1MRK 500 084-WENGeneric IEC 61850 IED Connectivity package 1KHA001027-UENProtection and Control IED Manager PCM 600 Installation sheet 1MRS755552Engineering guide IED 670 products 1MRK 511 179-UEN

Latest versions of the described documentation can be found on www.abb.com/substationautomation

1.1.5 Revision notesRevision DescriptionA No functionality added. Minor changes made in content due to problem reports.



Section 2 Safety information

About this chapterThis chapter contains safety information. Warning signs are presented which urge theuser to be careful during certain operations in order to avoid injuries to humans or damageto equipment.

2.1 Warning signs

Strictly follow the company and country safety regulations. Working ina high voltage environment requires serious approach to avoid humaninjuries and damage to equipment.

Do not touch circuitry during operation. Potentially lethal voltages andcurrents are present.

Always avoid touching the circuitry when covers are removed. Theproduct contains electronic circuits which can be damaged if exposed tostatic electricity (ESD). Lethal high voltage circuits are also exposedwhen covers are removed.

Always use suitable isolated test pins when measuring signals in opencircuitry. Potentially lethal voltages and currents are present.

Never connect or disconnect a wire and/or a connector to or from a IEDduring normal operation. Hazardous voltages and currents are present thatmay be lethal. Operation may be disrupted and IED and measuringcircuitry may be damaged.

Section 2Safety information


Always connect the IED to protective earth, regardless of the operatingconditions. This also applies to special occasions such as bench testing,demonstrations and off-site configuration. Operating the IED withoutproper earthing may damage both IED and measuring circuitry and maycause injuries in case of an accident.

Never disconnect the secondary connection of current transformer circuitwithout short-circuiting the transformers secondary winding. Operatinga current transformer with the secondary winding open will cause amassive potential build-up that may damage the transformer and maycause injuries to humans.

Never remove any screw from a powered IED or from a IED connectedto powered circuitry. Potentially lethal voltages and currents are present.

Take adequate measures to protect the eyes. Never look into the laserbeam.

2.2 Caution signs

Always transport PCBs (modules) using certified conductive bags.Always handle modules using a conductive wrist strap connected toprotective ground and on a suitable antistatic surface. Electrostaticdischarge (ESD) may cause damage to the module since electroniccircuits are sensitive to this phenomena.

Do not connect live wires to the IED. Internal circuitry may be damaged

Always use a conductive wrist strap connected to protective ground whenreplacing modules. Electrostatic discharge (ESD) may damage themodule and IED circuitry.



Take care to avoid electrical shock if accessing wiring and connectionIEDs when installing and commissioning.

Changing the active setting group will inevitably change the IEDsoperation. Be careful and check regulations before making the change.

2.3 Note signs

The protection assembly is designed for a maximum continuous currentof four times rated value.



Section 3 Overview

About this chapterThis chapter outlines the installation and commissioning of the IED.

3.1 Commissioning and installation overviewThe settings for each function must be calculated before the commissioning task can start.A configuration, done in the configuration and programming tool, must also be availableif the IED does not have a factory configuration downloaded.The IED is unpacked and visually checked. It is preferably mounted in a cubicle or on awall. The connection to the protection system has to be checked in order to verify thatthe installation is successful.

Section 3Overview


Section 4 Unpacking and checking the IED

About this chapterThis chapter describes the delivery and the unpacking of the IED

4.1 Taking delivery, unpacking and checkingProcedure

1. Remove the transport casing.2. Visually inspect the IED.3. Check that all items are included in accordance with the delivery documents.

Once the IED has been started make sure that the software functions ordered havebeen included in the delivery.

4. Check for transport damages.If transport damage is discovered appropriate action must be taken against the latestcarrier and the nearest ABB office or representative should be informed. ABBshould be notified immediately if there are any discrepancies in relation to thedelivery documents.

5. StorageIf the IED is to be stored before installation, this must be done in the originaltransport casing in a dry and dust free place. Observe the environmentalrequirements stated in the technical data.

Section 4Unpacking and checking the IED


Section 5 Installing the IED

About this chapterThis chapter describes how to install the IED.

5.1 OverviewThe mechanical and electrical environmental conditions at the installation site must bewithin the limits described in the IED technical data. Dusty, damp places, placessusceptible to rapid temperature variations, powerful vibrations and shocks, surgevoltages of high amplitude and fast rise time, strong induced magnetic fields or similarextreme conditions should be avoided.Sufficient space must be available in front of and at the rear of the IED to allow accessfor maintenance and future modifications. Flush mounted IEDs should be mounted sothat IED modules can be added and replaced without excessive dismantling.

5.2 Dimensions5.2.1 Case without rear cover

Section 5Installing the IED


xx04000448.vsd

CB

D

E

A

Figure 1: Case without rear cover xx04000464.vsd

JG

F

K

H

Figure 2: Case without rear coverwith 19 rack mounting kit

Case size(inches)

A B C D E F G H J K

6U, 1/2 x 19 10.47 8.81 7.92 9.96 8.10 7.50 8.02 - 7.39 -6U, 3/4 x 19 10.47 13.23 7.92 9.96 12.52 7.50 12.44 - 7.39 -6U, 1/1 x 19 10.47 17.65 7.92 9.96 16.94 7.50 16.86 18.31 7.39 19.00The H and K dimensions are defined by the 19 rack mounting kit

5.2.2 Case with rear cover



xx05000501.vsd

B

D

E

A

C

Figure 3: Case with rear cover.

xx05000502.vsd

JG

F

K

H

Figure 4: Case with rear cover and19 rack mounting kit.

xx05000503.vsd

Figure 5: Rear cover case withdetails.

Case size (mm) A B C D E F G H J K6U, 1/2 x 19 265.9 223.7 242.1 255.8 205.7 190.5 203.7 - 228.6 -6U, 3/4 x 19 265.9 336.0 242.1 255.8 318.0 190.5 316.0 - 228.6 -6U, 1/1 x 19 265.9 448.3 242.1 255.8 430.3 190.5 428.3 465.1 228.6 482.6The H and K dimensions are defined by the 19 rack mounting kit.



Case size(inches)

A B C D E F G H J K

6U, 1/2 x 19 10.47 8.81 9.53 10.07 8.10 7.50 8.02 - 9.00 -6U, 3/4 x 19 10.47 13.23 9.53 10.07 12.52 7.50 12.4 - 9.00 -6U, 1/1 x 19 10.47 17.65 9.53 10.07 16.86 7.50 16.86 18.31 9.00 19.00The H and K dimensions are defined by the 19 rack mounting kit.

5.2.3 Flush mounting dimensions

CA

B

ED

xx04000465.vsd

Figure 6: Flush mounting

Case sizeTolerance

Cut-out dimensions (inches)A+/0.04

B+/0.04

C D

6U, 1/2 x 19 8.27 10.01 0.160.39 0.496U, 3/4 x 19 12.69 10.01 0.160.39 0.496U, 1/1 x 19 17.11 10.01 0.160.39 0.49E = 188.6 mm without rear protection cover, 229.6 mm with rear protection cover



5.2.4 Side-by-side flush mounting dimensions

xx06000182.vsd

Figure 7: A 1/2 x 19 size IED 670 side-by-side with RHGS6.

xx05000505.vsd

B

A

C

GD

E

F

Figure 8: Panel-cut out dimensions for side-by-side flush mounting



Case size(inches)Tolerance

A0.04

B0.04

C0.04

D0.04

E0.04

F0.04

G0.04

6U, 1/2 x19

8.42 10.21 9.46 7.50 1.35 0.52 0.25 diam

6U, 3/4 x19

12.85 10.21 13.89 7.50 1.35 0.52 0.25 diam

6U, 1/1 x19

17.27 10.21 18.31 7.50 1.35 0.52 0.25 diam

5.2.5 Wall mounting dimensions

en04000471.vsd

E

A

B

CD

Figure 9: Wall mounting



Case size (inches) A B C D E6U, 1/2 x 19 10.50 10.52 10.74 15.36 9.576U, 3/4 x 19 15.92 14.94 10.74 15.36 9.576U, 1/1 x 19 20.31 19.33 10.74 15.36 9.57

5.3 Mounting methods and details5.3.1 Mounting the IED

Most of the IED 670s can be rack, flush or wall mounted with the use of different mountingkits, see figure10. An additional box of type RHGS can be mounted to one side of a 1/2or 3/4 IED.The different mounting kits contain all parts needed including screws and assemblyinstructions. The following mounting kits are available: Flush mounting kit 19 Panel (rack) mounting kit Wall mounting kit Side-by-side mounting kit

The same mounting kit is used for side-by-side rack mounting and side-by-side flushmounting.

The mounting kits must be ordered separately when ordering an IED.They are available as options on the ordering sheet in Accessories forIED 670, see section 0.

Generally, all the screws included in delivered mounting kits are of Torx type and ascrewdriver of the same type is needed (Tx10, Tx15, Tx20 and Tx25).

If other type of screws are to be used, be sure to use the dimensions ofthe screws that are given in this guide.



A B C D

Figure 10: Different mounting methods for IED 670 DescriptionA Flush mountingB 19 Panel rack mountingC Wall mountingD Side-by-side rack or flush mounting

5.3.2 Flush mounting5.3.2.1 Overview

All IED sizes, 1/2 x 19, 3/4 x 19 and 1/1 x 19 and RHGS6 6U 1/4 x 19, cases, canbe flush mounted. Only a single case can be mounted in each cut-out on the cubicle panel,for class IP54 protection.The flush mounting kit are utilized for IEDs of sizes: 1/2 x 19, 3/4 x 19 and 1/1 x 19and are also suitable for mounting of RHGS6, 6U 1/4 x 19 cases.

Flush mounting cannot be used for side-by-side mounted IEDs when IP54class must be fulfilled. Only IP20 class can be obtained when mountingtwo cases side-by-side in one (1) cut-out.

To obtain IP54 class protection, an additional factory mounted sealingmust be ordered when ordering the IED.



5.3.2.2 Mounting procedure for flush mounting

1

35

xx06000246.vsd

4

26

7

Figure 11: Flush mounting details.

PosNo Description Quantity Type1 Sealing strip, used to

obtain IP54 class. Thesealing strip is factorymounted between thecase and front plate.

- -

2 Fastener 4 -3 Groove - -4 Screw, self tapping 4 0.11x1.76 inches5 Joining point of sealing

strip (rear view)- -

6 Panel - -7 Screw 4 M5x25

Procedure

1. Cut an opening in the panel.



See section "Flush mounting dimensions" regarding dimensions.2. Carefully press the sealing strip around the IEDs collar. Cut the end of the sealing

strip a trifle longer to make the joining point (5) tight.The sealing strip is delivered with the mounting kit. The strip is long enough for thelargest available IED.

3. Insert the IED into the opening (cut-out) in the panel.4. Attach the fasteners to the IED.

Insert the panel end of the fastener in the gap between the IED and the panel. Insertthe rear end of the fastener into the groove. Insert from the rear side and lightlytighten the screw (4)Repeat this with the remaining fasteners.

5. Fix the IED by tightening all four (7) screws against the panel.

5.3.3 19 panel rack mounting5.3.3.1 Overview

All IED sizes can be mounted in a standard 19 cubicle rack by using the for each sizesuited mounting kit which consists of two mounting angles and fastening screws for theangles. The mounting angles are reversible which enables mounting of IED size 1/2 x19 or 3/4 x 19 either to the left or right side of the cubicle.

Please note that the separately ordered rack mounting kit for side-by-sidemounted IEDs, or IEDs together with RHGS cases, is to be selected sothat the total size equals 19.

When mounting the mounting angles, be sure to use screws that followsthe recommended dimensions. Using screws with other dimensions thanthe original may damage the PCBs inside the IED.



5.3.3.2 Mounting procedure for 19 panel rack mounting

xx04000452.vsd

1a

2

1b

Figure 12: 19 panel rack mounting details

PosNo Description Quantity Type1a, 1b Mounting angels, which can be mounted, either to the left

or right side of the case.2 -

2 Screw 8 M4x6

Procedure

1. Carefully fasten the mounting angles (1a, 1b) to the sides of the IED.Use the screws (2) supplied in the mounting kit.

2. Place the IED assembly in the 19 panel.3. Fasten the mounting angles with appropriate screws.



5.3.4 Wall mounting5.3.4.1 Overview

All case sizes, 1/2 x 19, 3/4 x 19 and 1/1 x 19, can be wall mounted. It is also possibleto mount the IED on a panel or in a cubicle.

When mounting the side plates, be sure to use screws that follows therecommended dimensions. Using screws with other dimensions than theoriginal may damage the PCBs inside the IED.

If fiber cables are bent too much, the signal can be weakened. Wallmounting is therefore not recommended for communication modules withfiber connection; Serial SPA/IEC 60870-5-103 and LON communicationmodule (SLM), Optical Ethernet module (OEM) and Line datacommunication module (LDCM).

5.3.4.2 Mounting procedure for wall mounting

xx04000453.vsd

1

2

34

5

6

Figure 13: Wall mounting details.



PosNo Description Quantity Type1 Bushing 4 -2 Screw 8 M4x103 Screw 4 M6x12 or corresponding4 Mounting bar 2 -5 Screw 6 M5x86 Side plate 2 -

Procedure

1. Mount the mounting bars onto the wall (4).See section "Wall mounting dimensions" for mounting dimensions.Depending on the wall different preparations may be needed like drilling andinserting plastic or expander plugs (concrete/plasterboard walls) or threading (metalsheet wall).

2. Make all electrical connections to the IED terminal.It is much easier to do this without the unit in place.

3. Mount the side plates to the IED.4. Mount the IED to the mounting bars.

5.3.4.3 How to reach the rear side of the IEDThe IED can be equipped with a rear protection cover which is recommended to use withthis type of mounting. See figure 14.To reach the rear side of the IED, a free space of 3.2 inches is required on the unhingedside.



3.2"

View from above

1

ANSI_en06000135.vsd

3

2(80 mm)

Figure 14: How to reach the connectors on the rear side of the IED.

PosNo Description Type1 Screw M4x102 Screw M5x83 Rear protection cover -

Procedure

1. Remove the inner screws (1), upper and lower on one side.2. Remove all three fixing screws (2), on the opposite side, from wall support.3. The IED can now be swung out for access to the connectors, after removing any

rear protection.

5.3.5 Side-by-side 19 rack mounting5.3.5.1 Overview

IED case sizes, 1/2 x 19 or 3/4 x 19 and RHGS cases, can be mounted side-by-side upto a maximum size of 19. For side-by-side rack mounting, the side-by-side mounting kittogether with the 19 rack panel mounting kit must be used. The mounting kit has to beordered separately.



When mounting the plates and the angles on the IED, be sure to use screwsthat follows the recommended dimensions. Using screws with otherdimensions than the original may damage the PCBs inside the IED.

5.3.5.2 Mounting procedure for side-by-side rack mounting

xx04000456.vsd

3

4

12

Figure 15: Side-by-side rack mounting details.

PosNo Description Quantity Type1 Mounting plate 2 -2, 3 Screw 16 M4x64 Mounting angle 2 -

Procedure

1. Place the two IEDs next to each other on a flat surface.2. Fasten a side-by-side mounting plate (1).

Use four of the delivered screws (2, 3).3. Carefully turn the two IEDs up-side down.4. Fasten the second side-by-side mounting plate.

Use the remaining four screws.5. Carefully fasten the mounting angles (4) to the sides of the IED.

Use the screws available in the mounting kit.6. Place the IED assembly in the rack.7. Fasten the mounting angles with appropriate screws.



5.3.5.3 IED 670 mounted with a RHGS6 caseAn 1/2 x 19 or 3/4 x 19 size IED can be mounted with a RHGS (6 or 12 depending onIED size) case. The RHGS case can be used for mounting a test switch of type RTXP 24.It also has enough space for a terminal base of RX 2 type for mounting of, for example,a DC-switch or two trip relays.

xx06000180.vsd

8 88

7

5

6

3

4

2

7

5

6

7

5

6

3

4

2

3

4

2

1

1

1

2

1 1

1

8

7

5

6

3

4

2

2

2

1

Figure 16: IED 670 (1/2 x 19) mounted with a RHGS6 case containing a test switchmodule equipped with only a test switch and a RX2 terminal base.

5.3.6 Side-by-side flush mounting5.3.6.1 Overview

It is not recommended to flush mount side by side mounted cases if IP54 is required. Ifyour application demands side-by-side flush mounting, the side-by-side mounting detailskit and the 19 panel rack mounting kit must be used. The mounting kit has to be orderedseparately. The maximum size of the panel cut out is 19.

With side-by-side flush mounting installation, only IP class 20 isobtained. To reach IP class 54, it is recommended to mount the IEDsseparately. For cut out dimensions of separately mounted IEDs, seesection "Flush mounting".



When mounting the plates and the angles on the IED, be sure to use screwsthat follows the recommended dimensions. Using screws with otherdimensions than the original may damage the PCBs inside the IED.

Please contact factory for special add on plates for mounting FT switcheson the side (for 1/2 19" case) or bottom of the relay.

5.3.6.2 Mounting procedure for side-by-side flush mounting

xx06000181.vsd

1 2

3

4

Figure 17: Side-by-side flush mounting details (RHGS6 side-by-side with 1/2 x 19IED).

PosNo Description Quantity Type1 Mounting plate 2 -2, 3 Screw 16 M4x64 Mounting angle 2 -

Procedure



1. Make a panel cut-out.For panel cut out dimension, see section "Side-by-side flush mountingdimensions".

2. Carefully press the sealing strip around the IED collar. Cut the end of the sealingstrip little longer to make the joining point tight.Repeat the same procedure with the second case.The sealing strip is delivered with the mounting kit. The strip is long enough for thelargest available IED.

3. Place the two IEDs next to each other on a flat surface.4. Fasten a side-by-side mounting plate (1).

Use four of the delivered screws (2, 3).5. Carefully turn the two IEDs up-side down.6. Fasten the second side-by-side mounting plate.

Use the remaining four screws.7. Carefully fasten the mounting angles (4) to the sides of the IED.

Use the fixing screws available in the mounting kit.8. Insert the IED into the cut-out.9. Fasten the mounting angles with appropriate screws.

5.4 Making the electrical connection5.4.1 IED connectors5.4.1.1 Overview

The quantity and designation of connectors depend upon the type and size of the IED.The rear cover plates are prepared with space for the maximum of HW options for eachcase size and the cut-outs that are not in use are covered with a plate from factory.

Table 1: Basic modules, always includedModule DescriptionCombined backplane module (CBM) A backplane PCB that carries all internal signals

between modules in an IED. Only the TRM is notconnected directly to this board.

Universal backplane module (UBM) A backplane PCB that forms part of the IED backplanewith connectors for TRM, ADM etc.

Power supply module (PSM) Including a regulated DC/DC converter that suppliesauxiliary voltage to all static circuits. An internal fail alarm output is available.

Table continued on next page



Module DescriptionNumerical module (NUM) Module for overall application control. All information is

processed or passed through this module, such asconfiguration, settings and communication.

Local Human machine interface (LHMI) The module consists of LED:s, an LCD, a push buttonkeyboard and an ethernet connector used to connect aPC to the IED.

Transformer input module (TRM) Transformer module that galvanically separates theinternal circuits from the VT and CT circuits. It has 12analog inputs.

Analog digital conversion module (ADM) Slot mounted PCB with A/D conversion.

Table 2: Application specific modulesModule DescriptionBinary input module (BIM) Module with 16 optically isolated binary inputsBinary output module (BOM) Module with 24 single outputs or 12 double-pole

command outputs including supervision functionBinary I/O module (IOM) Module with 8 optically isolated binary inputs, 10 outputs

and 2 fast signalling outputs.Line data communication modules (LDCM) (shortrange, medium range, long range, X21)

Modules used for digital communication to remoteterminal.

Serial SPA/LON/IEC 60870-5-103communication modules (SLM)

Used for SPA/LON/IEC 608705103 communication

Optical ethernet module (OEM) PMC board for IEC 61850 based communication.mA input module (MIM) Analog input module with 6 independent, galvanically

separated channels.GPS time synchronization module (GSM) Used to provide the IED with GPS time synchronization.Static output module (SOM) Module with 6 fast static outputs and 6 change over

output relays.IRIG-B Time synchronization module Module with 2 inputs. One is used for handling both

pulse-width modulated signals and amplitude modulatedsignals and one is used for optical input type ST for PPStime synchronization.



5.4.1.2 Front side connectors

Figure 18: IED front side connectorPosNo Description1 IED serial communication port with RJ45 connector2 Ethernet cable with RJ45 connectors

The cable between PC and the IED serial communication port shall be acrossed-over Ethernet cable with RJ45 connectors. If the connection aremade via a hub or switch, a standard Ethernet cable can be used.

5.4.1.3 Rear side connectors



Table 3: Designations for 1/2 x 19 casing with 1 TRM slot

Module Rear Positions PSM X11 BIM, BOM, SOM or IOM X31 and X32 etc. to X51 and

X52

BIM, BOM, SOM, IOM orGSM

X51, X52

SLM X301:A, B, C, D IRIG-B 1) X302 OEM X311:A, B, C, D RS485 or LDCM 2) 3) X312 LDCM 2) X313 TRM X401 1) IRIG-B installation, when included in seat P30:2

2) LDCM installation sequence: P31:2 or P31:33) RS485 installation, when included in seat P31:2Note!1 One LDCM can be included depending of availability ofIRIG-B respective RS485 modules.




Module Rear Positions PSM X11 BIM, BOM, SOM, IOM or

MIMX31 and X32 etc. toX101 and X102

BIM, BOM, SOM, IOM,MIM or GSM

X101, X102

SLM X301:A, B, C, D IRIG-B or LDCM 1) 2) X302 LDCM 2) X303 OEM X311:A, B, C, D RS485 or LDCM 2) 3) X312 LDCM 2) X313 TRM X401 1) IRIG-B installation, when included in seat P30:2

2) LDCM installation sequence: P31:2, P31:3, P30:2and P30:33) RS482 installation, when included in seat P31:2Note!2-4 LDCM can be included depending of availabilityof IRIG-B respective RS485 modules.




Module Rear Positions PSM X11 BIM, BOM, SOM, IOM or

MIMX31 and X32 etc. to X71 andX72

BIM, BOM, SOM, IOM,MIM or GSM

X71, X72

SLM X301:A, B, C, D IRIG-B or LDCM 1,2) X302 LDCM 2) X303 OEM X311:A, B, C, D RS485 or LDCM 2) 3) X312 LDCM 2) X313 LDCM 2) X322 LDCM 2) X323 TRM 1 X401 TRM 2 X411 1) IRIG-B installation, when included in seat P30:2

2) LDCM installation sequence: P31:2, P31:3, P32:2, P32:3,P30:2 and P30:33) RS485 installation, when included in seat P31:2Note!2-4 LDCM can be included depending of availability of IRIG-B respective RS485 modules.




Module Rear Positions PSM X11 BIM, BOM, SOM,

IOM or MIMX31 and X32 etc. to X161 andX162

BIM, BOM, SOM,IOM, MIM or GSM

X161, X162

SLM X301:A, B, C, D IRIG-B or LDCM

1,2)X302

LDCM 2) X303 OEM X311:A, B, C, D RS485 or LDCM 2)

3)X312

LDCM 2) X313 TRM X401 1) IRIG-B installation, when included in seat P30:2

2) LDCM installation sequence: P31:2, P31:3, P30:2and P30:33) RS485 installation, when included in seat P31:2Note!2-4 LDCM can be included depending of availabilityof IRIG-B respective RS485 modules.



Table 7: Designations for 1/1 x 19 casing with 2 TRM slots

Module Rear Positions PSM X11 BIM, BOM, SOM,

IOM or MIMX31 and X32 etc. to X131 andX132

BIM, BOM, SOM,IOM, MIM or GSM

X131, X132

SLM X301:A, B, C, D IRIG-B or LDCM

1,2)X302

LDCM 2) X303 OEM X311:A, B, C, D RS485 or LDCM 2)

3)X312

LDCM 2) X313 LDCM 2) X322 LDCM 2) X323 TRM 1 X401 TRM 2 X411 1) IRIG-B installation, when included in seat P30:2

2) LDCM installation sequence: P31:2, P31:3, P32:2,P32:3, P30:2 and P30:33) RS485 installation, when included in seat P31:2Note!2-4 LDCM can be included depending of availabilityof IRIG-B respective RS485 modules.

5.4.1.4 Connection diagrams



Figure 19: Transformerinputmodule(TRM)

CT/VT-input designation according to figure 19 Current/voltage

configuration(50/60 Hz)

AI01

AI02

AI03

AI04

AI05

AI06

AI07 AI08 AI09 AI10 AI11 AI12

12I (1A) 1A 1A 1A 1A 1A 1A 1A 1A 1A 1A 1A 1A 12I (5A) 5A 5A 5A 5A 5A 5A 5A 5A 5A 5A 5A 5A 9I (1A) and 3V 1A 1A 1A 1A 1A 1A 1A 1A 1A 110-22

0V110-220V

110-220V

9I (5A) and 3V 5A 5A 5A 5A 5A 5A 5A 5A 5A 110-220V

110-220V

110-220V

5I (1A) and 4I (5A)and 3V

1A 1A 1A 1A 1A 5A 5A 5A 5A 110-220V

110-220V

110-220V

7I (1A) and 5V 1A 1A 1A 1A 1A 1A 1A 110-220V

110-220V

110-220V

110-220V

110-220V

7I (5A) and 5V 5A 5A 5A 5A 5A 5A 5A 110-220V

110-220V

110-220V

110-220V

110-220V

6I (1A) and 6V 1A 1A 1A 1A 1A 1A 110-220V

110-220V

110-220V

110-220V

110-220V

110-220V

6I (5A) and 6V 5A 5A 5A 5A 5A 5A 110-220V

110-220V

110-220V

110-220V

110-220V

110-220V

6I (1A) 1A 1A 1A 1A 1A 1A - - - - - - 6I (5A) 5A 5A 5A 5A 5A 5A - - - - - -



Figure 20: Binary input module (BIM).Input contacts named XAcorresponds to rear positionX31, X41, etc. and inputcontacts named XB to rearposition X32, X42, etc.

Figure 21: mA input module (MIM)



Figure 22: Communication interfaces (OEM, LDCM, SLM and HMI)Note to figure 221) Rear communication port SPA/IEC 61850-5-103, ST-connector for glass alt. HFBR Snap-in connector for plastic as ordered2) Rear communication port LON, ST connector for glass alt. HFBR Snap-in connector for plastic as ordered3) Rear communication port RS485, terminal block4) Time synchronization port IRIG-B, BNC-connector5) Time synchronization port PPS or Optical IRIG-B, ST-connector6) Rear communication prot IEC 61850, ST-connector7) Rear communication port C37.94, ST-connector8) Front communication port Ethernet, RJ45 connector9) Rear communication port 15-pole female micro D-sub, 1.27 mm (0.050") pitch10) Rear communication port, terminal block



Figure 23: Power supply module (PSM)

Figure 24: GPS time synchronization module (GSM)

Figure 25: Binary output module (BOM). Output contacts named XA corresponds to rear position X31, X41,etc. and output contacts named XB to rear position X32, X42, etc.



Figure 26: Static output module (SOM)



Figure 27: Binary in/out module (IOM). Input contacts named XA corresponds to rear position X31, X41, etc. andoutput contacts named XB to rear position X32, X42, etc.

5.4.1.5 Connection examplesWARNING! USE EXTREME CAUTION! Dangerously high voltagesmight be present on this equipment, especially on the plate with resistors.Do any maintenance ONLY if the primary object protected with thisequipment is de-energized. If required by national low/standard enclosethe plate with resistors with a protective cover or in a separate box!

Connections for three-phase high impedance differential protectionGenerator, reactor or busbar differential protection is a typical application for three-phasehigh impedance differential protection. Typical CT connections for three-phase highimpedance differential protection scheme with 670 series are shown in figure CTconnections for High Impedance Differential Protection



L1(A)

L2(B)

L3(C)

Protected Object

CT 1200/1Star/Wye

Connected

L1(A)

L2(B)

L3(C)

CT 1200/1Star/Wye

Connected

789

101112

123456

AI01 (I)

AI02 (I)

AI03 (I)

AI04 (I)

AI05 (I)

AI06 (I)

78

6

9

IED 670

X1

R4 R5 R6

12

12

12

11 12 13 14

U U U R11

342

13R2

2 4

13R3

2 4

1 2 3 4 5 6 7

L1 (A)L2 (B)L3 (C)N

3-Ph Plate with Metrosils and Resistors

23

5

4

10

X X

L1 (A)L2 (B)L3 (C)N

1

Figure 28: CT connections for High Impedance Differential Protection

Number 1 shows the scheme earthing point. Note that it is of outmost importance toinsure that only one earthing point exist in such scheme.

Number 2 shows the three-phase plate with setting resistors and metrosils. Number 3 shows the necessary connection for three-phase metrosil set. Shown

connections are applicable for both types of three-phase plate. Number 4 shows the position of optional test switch for secondary injection into the

high impedance differential relay. Number 5 shows the necessary connection for setting resistors. Shown connections

are applicable for both types of three-phase plate. Number 6 shows that the factory made star point on a three-phase setting resistor set

shall be removed for installations with 670 series. This star point is required forRADHA schemes only!

Number 7 shows how to connect three individual phase currents for high impedancescheme to three CT inputs in IED 670.

Number 8 shows a TRM module where these current inputs are located. Note thatthe CT ratio for high impedance differential protection application must be set asone! Thus for main CTs with 1A secondary rating the following setting values shallbe entered: CTprim=1A and CTsec=1A; while for main CTs with 5A secondary



rating the following setting values shall be entered: CTprim=5A and CTsec=5A. Theparameter CTStarPoint shall be always left to the default value ToObject.

Number 9 shows three connections made in Signal Matrix Tool (i.e. SMT) whichconnect these three current inputs to first three input channels of the preprocessingfunction block (10). For high impedance differential protection preprocessingfunction block in 3ms task shall be used.

Number 10 shows the preprocessing block which has a task to digitally filter theconnected analogue inputs. Preprocessing block outputs AI1, AI2 and AI3 shall beconnected to three instances of high impedance differential protection functionblocks (e.g. HZD1, HZD2 and HZD3 function blocks in the configuration tool).

Connections for three-phase high impedance differential protectionRestricted earth fault (REF) protection is a typical application for one-phase highimpedance differential protection. Typical CT connections for high impedance basedREF protection scheme with 670 series are shown in figure CT connections for RestrictedEarth Fault Protection

L1(A)

L2(B)

L3(C)

Protected Object

CT 1500/5Star/Wye

Connected

789

101112

123456

AI01 (I)

AI02 (I)

AI03 (I)

AI04 (I)

AI05 (I)

AI06 (I)

6

7

8

IED 670

X1

R11

2

4 5

U R21

342

1 2 3

N

1-Ph Plate with Metrosil and Resistor

23

5

4

9

N

L1(A)

L2(B)

L3(C)

CT 15

00/5

1

en07000194.vsd

Figure 29: CT connections for Restricted Earth Fault Protection



Number 1 shows the scheme earthing point. Note that it is of outmost importance toinsure that only one earthing point exist in such scheme.

Number 2 shows the one-phase plate with setting resistor and metrosil. Number 3 shows the necessary connection for the metrosil. Shown connections are

applicable for both types of one-phase plate. Number 4 shows the position ofoptional test switch for secondary injection into the high impedance differential relay.

Number 4 shows the position of optional test switch for secondary injection into thehigh impedance differential relay.

Number 5 shows the necessary connection for setting resistor. Shown connectionsare applicable for both types of one-phase plate.

Number 6 shows how to connect the REF high impedance scheme to one CT inputin IED 670.

Number 7 shows a TRM module where this current input is located. Note that theCT ratio for high impedance differential protection application must be set as one!Thus for main CTs with 1A secondary rating the following setting values shall beentered: CTprim=1A and CTsec=1A; while for main CTs with 5A secondary ratingthe following setting values shall be entered: CTprim=5A and CTsec=5A. Theparameter CTStarPoint shall be always left to the default value ToObject.

Number 8 shows a connection made in Signal Matrix Tool (i.e. SMT) which connectsthis current input to first input channel of the preprocessing function block (10). Forhigh impedance differential protection preprocessing function block in 3ms task shallbe used.

Number 9 shows the preprocessing block which has a task to digitally filter theconnected analogue inputs. Preprocessing block output AI1 shall be connected toone instances of high impedance differential protection function block (e.g. HZD1function block in the configuration tool).

5.4.2 Connecting to protectivegroundConnect the grounding screw (pos 1 in figure 30) on the rear of the IED unit to the closestpossible earthing point in the cubicle. Electrical codes and standards require thatprotective ground cables are green/yellow conductors with a cross section area of at least2.5 mm2 (AWG14). There are several protective grounding screws on an IED. The Powersupply module (PSM), Transformer input modules (TRM) and the enclosure are allseparately grounded, see figure 30 below.The cubicle must be properly connected to the station earthinggrounding system. Use aconductor with a core cross section area of at least 4 mm2 (AWG 12).



1en05000509.vsd

3

2

Figure 30: Rear view of IED with one TRM showing grounding points.PosNo Description1 Main protective ground to chassis23 Grounding screw to Transformer input module (TRM). (There is one ground connection per TRM)

Use the main protective ground screw (1) for connection to the stationsgrounding system. Grounding screws for PSM module (2) and TRMmodule (3) must be fully tightened to secure protective ground connectionof these modules.

5.4.3 Connecting the power supply moduleThe wiring from the cubicle terminal block to the IED terminals (see figure 23 for PSMconnection diagram) must be made in accordance with the established guidelines for thistype of equipment. The wires from binary inputs and outputs and the auxiliary supplymust be routed separated from the current transformer cables between the terminal blocksof the cubicle and the IEDs connections. The connections are made on connector X11.For location of connector X11, refer to section "Rear side connectors".

5.4.4 Configuration for analog CT inputsThe secondary rated current of the CT (i.e. 1A or 5A) determines the choice of TRM inthe IED. Two TRMs are available, One is dimensioned for an input current of 5A and the



other for an input of 1A. If the CT rated secondary current does not match the TRM inputcurrent rating adjustments can be made in settings depending on the tolerance of the TRM.

5.4.5 Connecting to CT and VT circuitsCTs and VTs are connected to the 24pole connector of the Transformer input module(TRM) on the rear side of the IED. Connection diagram for TRM is shown in figure 19.

Use a solid conductor with a cross section area between 2.5-6 mm2 (AWG14-10) or astranded conductor with a cross section area between 2.5-4 mm2 (AWG14-12).If the IED is equipped with a test-switch of type RTXP 24 COMBIFLEX wires with 20A sockets must be used to connect the CT and VT circuits.Connectors X401 and X402 (for location see section "Rear side connectors") for currentand voltage transformer circuits are so called feed-through terminal blocks and aredesigned for conductors with cross sectional area up to 4 mm2 (AWG 12). The screwsused to fasten the conductors should be tightened with a torque of 1Nm.

Figure 31: Examples of ringlugterminals

Figure 32: Exaples of standardcompression connectionterminals



5.4.6 Connecting the binary input and output signalsAuxiliary power and signals are connected using voltage connectors. Signal wires areconnected to a female connector, see figure 33, which is then plugged into thecorresponding male connector, see figure 34, located at the rear of the IED. For locationof BIM, BOM, IOM and SOM refer to section "Rear side connectors". Connectiondiagrams for BIM, BOM, IOM and SOM are shown in figure 20, figure 25, figure26 andfigure 27.If the IED is equipped with a test-switch of type RTXP 24 COMBIFLEX wires with 20A sockets, 1.5mm (AWG16) conductor area must be used to connect the auxiliary power.Procedure

1. Connect signals to the female connectorAll wiring to the female connector should be done before it is plugged into the malepart and screwed to the case. The conductors can be of rigid type (solid, stranded)or of flexible type.The female connectors accept conductors with a cross section area of 0.2-2.5mm2 (AWG 24-14). If two conductors are used in the same terminal, the maximumpermissible cross section area is 0.2-1 mm2 (AWG 24-18 each).If two conductors, each with area 1.5 mm2 (AWG 16) need to be connected to thesame terminal, a ferrule must be used, see figure 35. This ferrule, is applied withthe by Phoenix recommended crimping tool, see figure "". No soldering is needed.Wires with a smaller gauge can be inserted directly into the female connectorreceptacle and the fastening screw shall be tightened with a torque of 0.4 Nm (Thistorque applies to all binary connectors).

2. Plug the connector to the corresponding back-side mounted male connector3. Lock the connector by fastening the lock screws

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Figure 33: A female connector



Figure 34: Board with male connectors

12

1

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Figure 35: Cable connectorsPosNo Description1 Is ferrule,2 A bridge connector, is used to jump terminal points in a connector.

5.4.7 Making the screen connectionWhen using screened cables always make sure screens are grounded and connectedaccording to applicable engineering methods. This may include checking for appropriategrounding points near the IED, for instance, in the cubicle and/or near the source ofmeasuring. Ensure that ground connections are made with short (max. 10 cm) conductorsof an adequate cross section, at least 6 mm2 (AWG10) for single screen connections.



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Rx

TxSc

Lc

Tx

RxSc

LcCc

IED ExternalEquipment

1

3

22

Figure 36: Communication cable installation.PosNo Description1 Outer shield2 Protective ground screw3 Inner shield

Inner shielding of the cable shall be grounded at the external equipmentend only. At the Relay terminal end, the inner shield must be isolated fromprotective ground.

5.5 Optical connections5.5.1 Connecting station communication interfaces (OEM and SLM)

The IED can, if ordered accordingly, be equipped with an optical ethernet module (OEM,see figure 22), needed for IEC 61850 communication and a serial communication module(SLM, see figure 22) for LON, SPA and IEC 608705103 communication. In such casesoptical ports are provided on the rear side of the case for connection of the optical fibers.For location of OEM and SLM, refer to section "Rear side connectors". Optical ports X311: A, B (Tx, Rx) and X311: C, D (Tx, Rx) on the OEM module are

used for IEC 61850 communication. Connectors are of ST type. When the optical



ethernet module is used, the protection plate for the galvanic connection must not beremoved.

Optical port X301: A, B (Tx, Rx) on the SLM module is used for SPA or IEC60870-5-103 communication. Connectors are of ST type (glass) or HFBR Snap in(plastic).

Optical port X301: C, D (Tx, Rx) on the SLM module is used for LONcommunication. Connectors are of ST type (glass) or HFBR Snap in (plastic).

Connectors are generally color coded; connect blue or dark grey cable connectors to blueor dark grey (receive) back-side connectors. Connect black or grey cable connectors toblack or grey (transmit) back-side connectors.

The fiber optical cables are very sensitive to handling. Do not bend toosharply. The minimum curvature radius is 15 cm for the plastic fibercables and 25 cm for the glass fiber cables. If cable straps are used to fixthe cables, apply with loose fit.Always hold the connector, never the cable, when connecting ordisconnecting optical fibers. Do not twist, pull or bend the fiber. Invisibledamage may increase fiber attenuation thus making communicationimpossible.

Please, strictly follow the instructions from the manufacturer for each typeof optical cables/connectors.

5.5.2 Connecting remote communication interfaces (LDCM)The Line Data Communication Module (LDCM, see figure 22) is the hardware used forthe transfer of binary and analog signal data between IEDs in different protection schemeson the IEEE/ANSI C37.94 protocol. The optical ports on the rear side of the IED areX302, X303, X312 and X313. For location of LDCM module, refer to section "Rear sideconnectors".



5.6 Galvanic X.21 line data communication (X.21-LDCM)

5.6.1 Connecting Galvanic X.21 line data communication module (X.21 LDCM)The Galvanic X.21 line data communication module (X.21 LDCM, see figure 22) is thehardware used for the transfer of binary and analog signal data between IEDs in differentprotection schemes via telecommunication equipment, for example leased telephonelines. For location of X-21 LDCM module, refer to section "Rear side connectors".The galvanic X.21 line data communication module uses a ABB specific PC*MIP TypeII format.

C

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Figure 37: Overview of the X.21 LDCM module



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Figure 38: The X.21 LDCM module external connectors

1. Ground selection connector for IO, screw terminals, 2-pole2. Ground pin3. X.21: Micro D-sub 15 pole female connector according to the V11 (X.27) balanced

version

Soft groundTo avoid ground loops when the grounds are connected, a soft ground connection for theIO-ground can be used. This is handled in the ground selection connector.Three different kinds of grounding principles can be set:1. No ground - leave the connector without any connection2. Direct ground - connect the ground pin directly to earth3. Soft ground - connect the two pins to each other

X.21 connectorTable 8: Pinout for the X.21 communication connector

Pin number Signal1 Shield (ground)2 TXD A3 Control A4 RXD A6 Signal t