voltage protection and control reu615 application manual · this product complies with the...

Relion® 615 series

Voltage Protection and ControlREU615Application Manual

Document ID: 1MRS757054Issued: 2010-09-24

Revision: CProduct version: 3.0

© Copyright 2010 ABB. All rights reserved

CopyrightThis document and parts thereof must not be reproduced or copied without writtenpermission from ABB, and the contents thereof must not be imparted to a thirdparty, nor used for any unauthorized purpose.

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

TrademarksABB and Relion are registered trademarks of ABB Group. All other brand orproduct names mentioned in this document may be trademarks or registeredtrademarks of their respective holders.

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

ABB Oy

Distribution Automation

P.O. Box 699

FI-65101 Vaasa, Finland

Telephone: +358 10 2211

Facsimile: +358 10 22 41094

http://www.abb.com/substationautomation

HTTP://WWW.ABB.COM/SUBSTATIONAUTOMATION

DisclaimerThe data, examples and diagrams in this manual are included solely for the conceptor product description and are not to be deemed as a statement of guaranteedproperties. All persons responsible for applying the equipment addressed in thismanual must satisfy themselves that each intended application is suitable andacceptable, including that any applicable safety or other operational requirementsare complied with. In particular, any risks in applications where a system failure and/or product failure would create a risk for harm to property or persons (including butnot limited to personal injuries or death) shall be the sole responsibility of theperson or entity applying the equipment, and those so responsible are herebyrequested to ensure that all measures are taken to exclude or mitigate such risks.

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

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

Table of contents

Section 1 Introduction.......................................................................3This manual........................................................................................3Intended audience..............................................................................3Product documentation.......................................................................4

Product documentation set............................................................4Document revision history.............................................................5Related documentation..................................................................6

Symbols and conventions...................................................................6Safety indication symbols..............................................................6Manual conventions.......................................................................7Functions, codes and symbols......................................................7

Section 2 REU615 overview...........................................................11Overview...........................................................................................11

Product version history................................................................11PCM600 and IED connectivity package version..........................11

Operation functionality......................................................................12Optional functions........................................................................12

Physical hardware............................................................................12Local HMI.........................................................................................14

Display.........................................................................................14LEDs............................................................................................15Keypad........................................................................................15

Web HMI...........................................................................................16Authorization.....................................................................................17Communication.................................................................................18

Section 3 REU615 standard configurations...................................21Standard configurations....................................................................21Connection diagrams........................................................................24Presentation of standard configurations...........................................27Standard configuration A..................................................................28

Applications.................................................................................28Functions.....................................................................................29

Default I/O connections..........................................................30Default disturbance recorder settings.....................................31

Functional diagrams....................................................................32Functional diagrams for protection.........................................32Functional diagram for disturbance recorder..........................38Functional diagrams for control and interlocking....................40

Table of contents

REU615 1Application Manual

Standard configuration B..................................................................43Applications.................................................................................43Functions.....................................................................................44

Default I/O connections..........................................................45Default disturbance recorder settings.....................................47

Functional diagrams....................................................................47Functional diagrams for protection.........................................48Functional diagrams for disturbance recorder andsupervision functions..............................................................51Functional diagrams for control and interlocking ...................53

Section 4 Requirements for measurement transformers................59Current transformers........................................................................59

Current transformer requirements for non-directionalovercurrent protection..................................................................59

Current transformer accuracy class and accuracy limitfactor......................................................................................59Non-directional overcurrent protection...................................60Example for non-directional overcurrent protection................61

Section 5 IED physical connections...............................................63Inputs................................................................................................63

Energizing inputs.........................................................................63Phase currents.......................................................................63Residual current.....................................................................63Phase voltages.......................................................................63Residual voltage.....................................................................64

RTD/mA inputs............................................................................64Auxiliary supply voltage input......................................................65Binary inputs................................................................................65

Outputs.............................................................................................67Outputs for tripping and controlling..............................................67Outputs for signalling...................................................................67IRF...............................................................................................68

Section 6 Glossary.........................................................................69

Table of contents

2 REU615Application Manual

Section 1 Introduction

1.1 This manual

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

1.2 Intended audience

This manual addresses the protection and control engineer responsible forplanning, pre-engineering and engineering.

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

1MRS757054 C Section 1Introduction


1.3 Product documentation

1.3.1 Product documentation set

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Application manual

Operation manual

Installation manual

Service manual

Engineering manual

Commissioning manual

Communication protocolmanual

Technical manual

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Application manualApplication manual

Operation manualOperation manual

Installation manualInstallation manual

Service manualService manual

Engineering manualEngineering manual

Commissioning manualCommissioning manual

Communication protocolmanualCommunication protocolmanual

Technical manualTechnical manual

en07000220.vsd

IEC07000220 V1 EN

Figure 1: The intended use of manuals in different lifecycles

The engineering manual contains instructions on how to engineer the IEDs usingthe different tools in PCM600. The manual provides instructions on how to set up aPCM600 project and insert IEDs to the project structure. The manual alsorecommends a sequence for engineering of protection and control functions, LHMIfunctions as well as communication engineering for IEC 61850 and othersupported protocols.

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

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

Section 1 1MRS757054 CIntroduction


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

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

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

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

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

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

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

Some of the manuals are not available yet.

1.3.2 Document revision historyDocument revision/date Product version HistoryA/2010-06-11 3.0 First release

B/2010-06-29 3.0 Terminology corrected

C/2010-09-24 3.0 Content corrected

Download the latest documents from the ABB web site http://www.abb.com/substationautomation.





1.3.3 Related documentationName of the document Document IDModbus Communication Protocol Manual 1MRS756468

DNP3 Communication Protocol Manual 1MRS756709

IEC 60870-5-103 Communication Protocol Manual 1MRS756710

IEC 61850 Engineering Guide 1MRS756475

Engineering Manual 1MRS757121

Installation Manual 1MRS756375

Operation Manual 1MRS756708

Technical Manual 1MRS756887

1.4 Symbols and conventions

1.4.1 Safety indication symbols

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

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

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

The information icon alerts the reader to important facts andconditions.

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

Although warning hazards are related to personal injury, it should be understoodthat operation of damaged equipment could, under certain operational conditions,result in degraded process performance leading to personal injury or death.Therefore, comply fully with all warning and caution notices.



1.4.2 Manual conventionsConventions used in IED manuals. A particular convention may not be used in thismanual.

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

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

• HMI menu paths are presented in bold, for example:Select Main menu/Settings.

• LHMI messages are shown in Courier font, for example:To save the changes in non-volatile memory, select Yes and press .

• Parameter names are shown in italics, for example:The function can be enabled and disabled with the Operation setting.

• Parameter values are indicated with quotation marks, for example:The corresponding parameter values are "On" and "Off".

• IED input/output messages and monitored data names are shown in Courierfont, for example:When the function starts, the START output is set to TRUE.

1.4.3 Functions, codes and symbolsTable 1: REU615 Functions, codes and symbols

Function IEC 61850 IEC 60617 IEC-ANSIProtection

Three-phase non-directionalovercurrent protection, low stage,instance 1

PHLPTOC1 3I> (1) 51P-1 (1)

Three-phase non-directionalovercurrent protection, high stage,instance 1

PHHPTOC1 3I>> (1) 51P-2 (1)

Three-phase non-directionalovercurrent protection,instantaneous stage, instance 1

PHIPTOC1 3I>>> (1) 50P/51P (1)

Residual overvoltage protection,instance 1 ROVPTOV1 Uo> (1) 59G (1)



Three-phase undervoltageprotection, instance 1 PHPTUV1 3U< (1) 27 (1)



Table continues on next page



Function IEC 61850 IEC 60617 IEC-ANSIThree-phase overvoltageprotection, instance 1 PHPTOV1 3U> (1) 59 (1)

Three-phase overvoltageprotection, instance 2 PHPTOV2 3U> (2) 59 (2)

Three-phase overvoltageprotection, instance 3 PHPTOV3 3U> (3) 59 (3)

Positive-sequence undervoltageprotection, instance 1 PSPTUV1 U1< (1) 47U+ (1)

Positive-sequence undervoltageprotection, instance 2 PSPTUV2 U1< (2) 47U+ (2)

Negative-sequence overvoltageprotection, instance 1 NSPTOV1 U2> (1) 47O- (1)

Negative-sequence overvoltageprotection, instance 2 NSPTOV2 U2> (2) 47O- (2)

Frequency protection, instance 1 FRPFRQ1 f>/f<,df/dt (1) 81 (1)






Three-phase thermal overloadprotection for power transformers,two time constants

T2PTTR1 3Ith>T 49T

Master trip, instance 1 TRPPTRC1 Master Trip (1) 94/86 (1)


Arc protection, instance 1 ARCSARC1 ARC (1) 50L/50NL (1)



Multi-purpose protection, instance11) MAPGAPC1 MAP (1) MAP (1)



Load shedding and restoration,instance 1 LSHDPFRQ1 UFLS/R (1) 81LSH (1)





Control

Circuit-breaker control CBXCBR1 I <-> O CB I <-> O CB




Function IEC 61850 IEC 60617 IEC-ANSIDisconnector position indication,instance 1 DCSXSWI1 I <-> O DC (1) I <-> O DC (1)

Disconnector position indication,instance 2 DCSXSWI2 I <-> O DC (2) I <-> O DC (2)

Disconnector position indication,instance 3 DCSXSWI3 I <-> O DC (3) I <-> O DC (3)

Earthing switch indication ESSXSWI1 I <-> O ES I <-> O ES

Tap changer position indication TPOSSLTC1 TPOSM 84M

Tap changer control with voltageregulator OLATCC1 COLTC 90V

Synchronism and energizing check SECRSYN1 SYNC 25

Condition monitoring

Trip circuit supervision, instance 1 TCSSCBR1 TCS (1) TCM (1)


Current circuit supervision CCRDIF1 MCS 3I MCS 3I

Fuse failure supervision SEQRFUF1 FUSEF 60

Measurement

Disturbance recorder RDRE1 - -

Three-phase currentmeasurement, instance 1 CMMXU1 3I 3I

Sequence current measurement CSMSQI1 I1, I2, I0 I1, I2, I0

Three-phase voltage measurement VMMXU1 3U 3U

Residual voltage measurement RESVMMXU1 Uo Vn

Sequence voltage measurement VSMSQI1 U1, U2, U0 U1, U2, U0

Three-phase power and energymeasurement, including powerfactor

PEMMXU1 P, E P, E

RTD/mA measurement XRGGIO130 X130 (RTD) X130 (RTD)

Frequency measurement FMMXU1 f f

1) Multi-purpose protection is used for, for example, RTD/mA based protection.



Section 2 REU615 overview

2.1 Overview

The voltage protection and control IED, REU615 is available in two standardconfigurations, denoted A and B. Configuration A is preadapted for voltage andfrequency-based protection schemes in utility and industrial power systems anddistribution systems including networks with distributed power generation. The Bconfiguration is designed for automatic voltage regulation of power transformersequipped with an on-load tap-changer. Both configurations also feature additionalCB control, measuring and supervising functions. REU615 is a member of ABB’sRelion® product family and part of its 615 protection and control product series.The 615 series IEDs are characterized by their compactness and withdrawable–unitdesign.

Re-engineered from the ground up, the 615 series has been designed to unleash thefull potential of the IEC 61850 standard for communication and interoperabilitybetween substation automation devices. Once the standard configuration IED hasbeen given the application-specific settings, it can directly be put into service.

The 615 series IEDs support a range of communication protocols including IEC61850 with GOOSE messaging, IEC 60870-5-103, Modbus® and DNP3.

2.1.1 Product version historyProduct version Product history3.0 Product released

2.1.2 PCM600 and IED connectivity package version• Protection and Control IED Manager PCM600 Ver. 2.3 or later• REU615 Connectivity Package Ver. 3.0 or later

• Parameter Setting• Firmware Update• Disturbance Handling• Signal Monitoring• Lifecycle Traceability• Signal Matrix• Communication Management• IED Configuration Migration• Configuration Wizard• Label Printing

1MRS757054 C Section 2REU615 overview


• IED User Management• Application Configuration• Graphical Display Editor

Download connectivity packages from the ABB web site http://www.abb.com/substationautomation

2.2 Operation functionality

2.2.1 Optional functions• Arc protection (configuration A only)• Modbus TCP/IP or RTU/ASCII• IEC 60870-5-103• DNP3 TCP/IP or serial• RTD/mA measurements and multi-purpose protection (configuration B only)

2.3 Physical hardware

The IED consists of two main parts: plug-in unit and case. The content depends onthe ordered functionality.

Table 2: Plug-in unit and case

Main Slot ID Content optionsPlug-inunit

- HMI Small (4 lines, 16 characters)Large (8 lines, 16 characters)

X100 Auxiliary power/BOmodule

48-250V DC/100-240 V AC; or 24-60 V DC2 normally-open PO contacts1 change-over SO contacts1 normally open SO contact2 double-pole PO contacts with TCS1 dedicated internal fault output contact

X110 BIO module 8 binary inputs4 signal output contacts

X120 AI/BI module Only with configuration B:3 phase current inputs (1/5 A)1 residual current input (1/5 A)3 phase voltage inputs (60-210 V)


Section 2 1MRS757054 CREU615 overview




Main Slot ID Content optionsCase X130 AI/BI module Only with configuration A:

3 phase voltage inputs (60-210 V)1 residual voltage input (60-210 V)1 reference voltage input for SECRSYN1 (60-210 V)4 binary inputs

Optional RTD/mA module Optional for configuration B:2 generic mA inputs6 RTD sensor inputs

Optional BIO module Optional for configuration B:6 binary inputs3 signal output contacts

X000 Optional communicationmodule

See technical manual for details about differenttype of communication modules.

Rated values of the current and voltage inputs are basic setting parameters of theIED. The binary input thresholds are selectable within the range 18…176 V DC byadjusting the binary input setting parameters.

The rated input levels are selected in the IED software for phase current andground current. The binary input thresholds 18...176 V DC are selected byadjusting the IED's parameter settings.

The optional BIO module can be added in the IED to all standardconfigurations.

The connection diagrams of different hardware modules are presented in this manual.

See the installation manual for more information about the case andthe plug-in unit.

Table 3: Number of physical connections in standard configurations

Conf. Analog channels Binary channels CT VT RTD/mA BI BO

A - 5 - 12 10

B 4 3- 8 (14)1) 10 (13)1)

6/22) 8 10

1) With optional BIO module2) With optional RTD/mA module



2.4 Local HMI

REF615

Overcurrent

Dir. earth-fault

Voltage protection

Phase unbalance

Thermal overload

Breaker failure

Disturb. rec. Triggered

CB condition monitoring

Supervision

Arc detected

Autoreclose shot in progr.

A070704 V3 EN

Figure 2: Example of 615 series LHMI

The LHMI of the IED contains the following elements:

• Display• Buttons• LED indicators• Communication port

The LHMI is used for setting, monitoring and controlling.

2.4.1 DisplayThe LHMI includes a graphical display that supports two character sizes. Thecharacter size depends on the selected language. The amount of characters androws fitting the view depends on the character size.



Table 4: Characters and rows on the view

Character size Rows in view Characters on rowSmall, mono-spaced (6x12pixels)

5 rows10 rows with large screen

20

Large, variable width (13x14pixels)

4 rows8 rows with large screen

min 8

The display view is divided into four basic areas.

1 2

3 4

A070705 V2 EN

Figure 3: Display layout

1 Header

2 Icon

3 Content

4 Scroll bar (displayed when needed)

2.4.2 LEDsThe LHMI includes three protection indicators above the display: Ready, Start andTrip.

There are also 11 matrix programmable LEDs on front of the LHMI. The LEDscan be configured with PCM600 and the operation mode can be selected with theLHMI, WHMI or PCM600.

2.4.3 KeypadThe LHMI keypad contains push-buttons which are used to navigate in differentviews or menus. With the push-buttons you can give open or close commands toone object in the primary circuit, for example, a circuit breaker, a contactor or adisconnector. The push-buttons are also used to acknowledge alarms, resetindications, provide help and switch between local and remote control mode.



A071176 V1 EN

Figure 4: LHMI keypad with object control, navigation and command push-buttons and RJ-45 communication port

2.5 Web HMI

The WHMI enables the user to access the IED via a web browser. The supportedweb browser version is Internet Explorer 7.0 or later.

WHMI is disabled by default.

WHMI offers several functions.

• Programmable LEDs and event lists• System supervision• Parameter settings• Measurement display• Disturbance records• Phasor diagram• Single-line diagram

The menu tree structure on the WHMI is almost identical to the one on the LHMI.



A070754 V3 EN

Figure 5: Example view of the WHMI

The WHMI can be accessed locally and remotely.

• Locally by connecting your laptop to the IED via the front communication port.• Remotely over LAN/WAN.

2.6 Authorization

The user categories have been predefined for the LHMI and the WHMI, each withdifferent rights and default passwords.

The default passwords can be changed with Administrator user rights.

User authorization is disabled by default but WHMI always usesauthorization.



Table 5: Predefined user categories

Username User rightsVIEWER Read only access

OPERATOR • Selecting remote or local state with (only locally)• Changing setting groups• Controlling• Clearing indications

ENGINEER • Changing settings• Clearing event list• Clearing disturbance records• Changing system settings such as IP address, serial baud rate

or disturbance recorder settings• Setting the IED to test mode• Selecting language

ADMINISTRATOR • All listed above• Changing password• Factory default activation

For user authorization for PCM600, see PCM600 documentation.

2.7 Communication

The IED supports a range of communication protocols including IEC 61850, IEC60870-5-103, Modbus® and DNP3. Operational information and controls areavailable through these protocols. However, some communication functionality,for example, horizontal communication between the IEDs, is only enabled by theIEC 61850 communication protocol.

The IEC 61850 communication implementation supports all monitoring andcontrol functions. Additionally, parameter settings, disturbance recordings andfault records can be accessed using the IEC 61850 protocol. Disturbance recordingsare available to any Ethernet-based application in the standard COMTRADE fileformat. The IED can send and receive binary signals from other IEDs (so calledhorizontal communication) using the IEC61850-8-1 GOOSE profile, where thehighest performance class with a total transmission time of 3 ms is supported.Further, the IED supports sending and receiving of analog values using GOOSEmessaging. The IED meets the GOOSE performance requirements for trippingapplications in distribution substations, as defined by the IEC 61850 standard. TheIED can simultaneously report events to five different clients on the station bus.

The IED can support five simultaneous clients. If PCM600 reserves one clientconnection, only four client connections are left, for example, for IEC 61850 andModbus.



All communication connectors, except for the front port connector, are placed onintegrated optional communication modules. The IED can be connected to Ethernet-based communication systems via the RJ-45 connector (100Base-TX) or the fibre-optic LC connector (100Base-FX).

Managed Ethernet switchwith RSTP support

Managed Ethernet switchwith RSTP support

RED615 REF615 RET615 REU615 REM615

Client BClient A

Network

Network

GUID-AB81C355-EF5D-4658-8AE0-01DC076E519C V1 EN

Figure 6: Self-healing Ethernet ring solution

The Ethernet ring solution supports the connection of up to thirty615 series IEDs. If more than 30 IEDs are to be connected, it isrecommended that the network is split into several rings with nomore than 30 IEDs per ring.



Section 3 REU615 standard configurations

3.1 Standard configurations

REU615 is available in two standard configurations. The standard signalconfiguration can be altered by means of the graphical signal matrix or the optionalgraphical application functionality of the Protection and Control IED ManagerPCM600. Further, the application configuration functionality of PCM600 supportsthe creation of multi-layer logic functions using various logical elements, includingtimers and flip-flops. By combining protection functions with logic functionblocks, the IED configuration can be adapted to user-specific applicationrequirements.

Table 6: Standard configurations

Description Std.conf.Voltage and frequency based protection and measurement functions, synchrocheckand load shedding A

Automatic voltage regulator B

Table 7: Supported functions

Functionality A BProtection1)

Three-phase non-directional overcurrent protection, low stage, instance 1 - ●

Three-phase non-directional overcurrent protection, high stage, instance 1 - ●

Three-phase non-directional overcurrent protection, instantaneous stage, instance 1 - ●

Residual overvoltage protection, instance 1 ●2) -



Three-phase undervoltage protection, instance 1 ● ●



Three-phase overvoltage protection, instance 1 ● ●



Positive-sequence undervoltage protection, instance 1 ● -

Positive-sequence undervoltage protection, instance 2 ● -

Negative-sequence overvoltage protection, instance 1 ● -

Negative-sequence overvoltage protection, instance 2 ● -


1MRS757054 C Section 3REU615 standard configurations


Functionality A BFrequency protection, instance 1 ● -

Frequency protection, instance 2 ● -





Three-phase thermal overload protection for power transformers, two time constants - ●

Master trip, instance 1 ● ●

Master trip, instance 2 ● ●

Arc protection, instance 1 o3) -



Multi-purpose protection, instance 14) - o



Load shedding and restoration, instance 1 ● -





Control

Circuit-breaker control ● ●

Disconnector position indication, instance 1 ● ●



Earthing switch indication ● ●

Tap changer position indication - ●

Tap changer control with voltage regulator - ●

Synchronism and energizing check ● -

Condition Monitoring

Trip circuit supervision, instance 1 ● ●

Trip circuit supervision, instance 2 ● ●

Current circuit supervision - ●

Fuse failure supervision - ●

Measurement

Disturbance recorder ● ●

Three-phase current measurement, instance 1 - ●

Sequence current measurement - ●

Three-phase voltage measurement ● ●


Section 3 1MRS757054 CREU615 standard configurations


Functionality A BResidual voltage measurement ● -

Sequence voltage measurement ● ●

Three-phase power and energy measurement, including power factor - ●

RTD/mA measurement - o

Frequency measurement ● -

● = included, o = optional at the time of order

1) Note that all directional protection functions can also be used in non-directional mode.2) Uo selectable by parameter, Uo measured as default.3) Light only.4) Multi-purpose protection is used for, for example, RTD/mA based protection.



3.2 Connection diagrams

GUID-E8E4A6F1-57F5-4E53-AACF-FA95E7D92D83 V1 EN

Figure 7: Connection diagram for the A configuration



GUID-46B7ECD1-0F3F-4DCA-8144-8A485D02061A V1 EN

Figure 8: Connection diagram for the A configuration (voltage protection withphase-to-earth voltage measurement)



GUID-64ADD3D1-99D0-458B-8E28-5023277CFD6C V1 EN

Figure 9: Connection diagram for the B configuration



GUID-AE8916E5-D21C-4C90-B38A-C93EDE80FF2E V1 EN

Figure 10: Connection diagram for the B configuration (on load tap changercontrol with phase-to-earth voltage measurement)

3.3 Presentation of standard configurations

Functional diagramsThe functional diagrams describe the IED's functionality from the protection,measuring, condition monitoring, disturbance recording, control and interlockingperspective. Diagrams show the default functionality with simple symbol logics



forming principle diagrams. The external connections to primary devices are alsoshown, stating the default connections to measuring transformers. The positivemeasuring direction of directional protection functions is towards the outgoing feeder.

The functional diagrams are divided into sections with each section constitutingone functional entity. The external connections are also divided into sections. Onlythe relevant connections for a particular functional entity are presented in eachsection.

Protection function blocks are part of the functional diagram. They are identifiedbased on their IEC 61850 name but the IEC based symbol and the ANSI functionnumber are also included. Some function blocks, such as PHHPTOC, are usedseveral times in the configuration. To separate the blocks from each other, the IEC61850 name, IEC symbol and ANSI function number are appended with a runningnumber, that is an instance number, from one upwards. If the block has no suffixafter the IEC or ANSI symbol, the function block has been used, that is,instantiated, only once. The IED’s internal functionality and the externalconnections are separated with a dashed line presenting the IED’s physical casing.

Signal Matrix and Application ConfigurationWith Signal Matrix and Application Configuration in PCM600, it is possible tomodify the standard configuration according to the actual needs. The IED isdelivered from the factory with default connections described in the functionaldiagrams for binary inputs, binary outputs, function-to-function connections andalarm LEDs. The Signal Matrix is used for GOOSE signal input engineering andfor making cross-references between the physical I/O signals and the functionblocks. The Signal Matrix tool cannot be used for adding or removing functionblocks, for example, GOOSE receive function blocks. The ApplicationConfiguration tool is used for these kind of operations. If a function block isremoved with Application Configuration, the function related data disappears fromthe menus as well as from the 61850 data model, with the exception of some basicfunction blocks, which are mandatory and thus cannot be removed from the IEDconfiguration by removing them from the Application Configuration.

3.4 Standard configuration A

3.4.1 Applications

The standard configuration is intended for voltage protection and synchronismcheck in medium voltage networks. The standard configuration handles faultconditions originating from abnormal voltages in the power system. Also thesynchronism and energizing check can be handled for two galvanicallyinterconnected networks.

The IED with a standard configuration is delivered from the factory with defaultsettings and parameters. The end-user flexibility for incoming, outgoing and



internal signal designation within the IED enables this configuration to be furtheradapted to different primary circuit layouts and the related functionality needs bymodifying the internal functionality using PCM600.

3.4.2 FunctionsTable 8: Functions included in the standard configuration A

Functionality IEC 61850 IEC 60617 IEC-ANSIProtection

Residual overvoltage protection,instance 1

ROVPTOV1 Uo> (1) 59G (1)





Three-phase undervoltageprotection, instance 1

PHPTUV1 3U< (1) 27 (1)


PHPTUV2 3U< (2) 27 (2)


PHPTUV3 3U< (3) 27 (3)

Three-phase overvoltageprotection, instance 1

PHPTOV1 3U> (1) 59 (1)


PHPTOV2 3U> (2) 59 (2)


PHPTOV3 3U> (3) 59 (3)

Positive-sequence undervoltageprotection, instance 1

PSPTUV1 U1< (1) 47U+ (1)

Positive-sequence undervoltageprotection, instance 2

PSPTUV2 U1< (2) 47U+ (2)

Negative-sequence overvoltageprotection, instance 1

NSPTOV1 U2> (1) 47O- (1)

Negative-sequence overvoltageprotection, instance 2

NSPTOV2 U2> (2) 47O- (2)















Functionality IEC 61850 IEC 60617 IEC-ANSILoad shedding and restoration,instance 1

LSHDPFRQ1 UFLS/R (1) 81LSH (1)

Load shedding and restoration,instance 2








Control


Disconnector position indication,instance 1

DCSXSWI1 I <-> O DC (1) I <-> O DC (1)






Synchronism and energizing check SECRSYN1 SYNC 25




Measurement



Residual voltage measurement RESVMMXU1 Uo Vn


Frequency measurement FMMXU1 f f

3.4.2.1 Default I/O connections

Table 9: Default connections for binary inputs

Binary input Default usage Connector pinsX110-BI1 Setting group change X110-1,2

X110-BI2 Manual restore group 1 X110-3,4

X110-BI3 Manual restore group 2 X110-5,6

X110-BI4 X110-7,6

X110-BI5 Voltage transformer truck in indication X110-8,9

X110-BI6 Voltage transformer truck out indication X110-10,9

X110-BI7 Earth switch closed indication X110-11,12

X110-BI8 Earth switch open indication X110-13,12




Binary input Default usage Connector pinsX130-BI1 Blown primary fuse indication X130-1,2

X130-BI2 Line voltage transformer MCB open X130-2,3

X130-BI3 Bus voltage transformer MCB open X130-4,5

X130-BI4 Lockout reset X130-5,6

Table 10: Default connections for binary outputs

Binary output Default usage Connector pinsX100-PO1 X100-6,7

X100-PO2 In synchronism for close X100-8,9

X100-SO1 General start indication X100-10,11,(12)

X100-SO2 General operate indication X100-13,14

X100-PO3 Open circuit breaker/trip coil 1 X100-15-19

X100-PO4 Open circuit breaker/trip coil 2 X100-20-24

X110-SO1 Load shedding group 1 X110-14,15,16

X110-SO2 Load shedding group 2 X110-17,18,19

X110-SO3 Load restore group 1 X110-20,21,22

X110-SO4 Load restore group 2 X110-23,24

Table 11: Default connections for LEDs

LED Default usage1 Overvoltage protection operated

2 Undervoltage protection operated

3 Residual voltage protection operated

4 Sequence voltage protection operated

5 Frequency protection operated

6 Load shedding operated

7 Disturbance recorder triggered

8 Systems synchronized

9 Voltage transformer secondary MCB open

10 Arc fault detected

11 Primary voltage transformer fuse blown

3.4.2.2 Default disturbance recorder settings



Table 12: Default analog channel selection and text settings

Channel Selection and text1 Uo

2 U1

3 U2

4 U3

5 U1B

6 -

7 -

8 -

9 -

10 -

11 -

12 -

Additionally, all the digital inputs that are connected by default are also enabledwith the setting. Default triggering settings are selected depending on theconnected input signal type. Typically all protection START signals are selected totrigger the disturbance recorded by default.

3.4.3 Functional diagrams

The functional diagrams describe the default input, output, alarm LED and function-to-function connections. The default connections can be viewed and changed withPCM600 according to the application requirements, if necessary.

The analog channels, measurements from voltage transformers, have fixedconnections towards the different function blocks inside the IED’s standardconfiguration. Exceptions from this rule are the eight analog channels available forthe disturbance recorder function. These channels are freely selectable and a part ofthe disturbance recorder’s parameter settings.

The analog channels are assigned to different functions. The common signalmarked with 3U represents the three phase voltages. The signal marked with Uorepresents the measured residual voltage via open-delta connected voltagetransformers.

3.4.3.1 Functional diagrams for protection

The functional diagrams describe the IED’s protection functionality in detail andpicture the factory set default connections.



GUID-4071AE4F-377A-4D4A-A506-B5A55C840C74 V1 EN

Figure 11: Overvoltage protection

Three overvoltage protection stages (PHxPTOV) protect against abnormal phasevoltage conditions in the power system. The operation of voltage functions isconnected to alarm LED 1.

Depending on the selected operation mode, the active setting group can be changedeither with a parameter or via binary input.

All operate signals are connected to the Master Trip and also to the alarm LEDs.LED 1 indicates operation of overvoltage and LED 2 operation of undervoltageprotection functions. LED 3 indicates operation of residual overvoltage and LED 4voltage unbalance protection. LED 5 indicates operation of frequency protection.



GUID-BBD0D81F-5F94-4E97-8CF5-560F9EA9562F V1 EN

Figure 12: Undervoltage protection

Three undervoltage protection stages (PHxPTUV) protect against abnormal phasevoltage conditions in the power system. The operation of voltage functions isconnected to alarm LED 2. An external supervision device detects failures inprimary high voltage fuses and the activation is connected to binary inputX130:BI1. Activating the binary input to avoid faulty undervoltage tripping blocksthe undervoltage protection functions.

GUID-6A4FADFD-F55D-433D-894F-370CF538F902 V1 EN

Figure 13: Residual overvoltage protection



The residual overvoltage protection (ROVPTOV) provides earth-fault protectionby detecting abnormal level of residual voltage. It can be used, for example, as anonselective backup protection for the selective directional earth-faultfunctionality. The operation signal is connected to alarm LED 3.

GUID-98C7A5F0-B1A7-4008-92D2-FBACE327C843 V1 EN

Figure 14: Positive and negative sequence voltage protection

Four unbalance voltage protection functions are offered: two stages of negative-sequence overvoltage protection (NSPTOV1) and two stages positive-sequenceundervoltage protection (PSPTUV1) functions. NSPTOV1 and PSPTUV1 areblocked in case a blown primary fuse is detected.



GUID-0F39CC9C-7388-47F5-89F3-666E4D0D42CB V1 EN

Figure 15: Frequency protection

The selectable underfrequency or overfrequency protection (FRPFRQ) preventsdamage to network components under unwanted frequency conditions.



The function contains a selectable rate of change of the frequency (gradient)protection to detect an increase or decrease in the fast power system frequency atan early stage. This can be used as an early indication of a disturbance in thesystem. The operation signal is connected to alarm LED 5.

GUID-3B69C572-5221-4320-850C-DD1DB0933037 V2 EN

Figure 16: Load shedding and restoration

Five load shedding and restoration stages are offered in the standard configuration.The load shedding and restoration function (LSHDPFRQ) is capable of sheddingload based on underfrequency and the rate of change of the frequency. The loadthat is shed during the frequency disturbance can be restored once the frequency isstabilized to the normal level. Also manual restore commands can be given viabinary inputs.



In this standard configuration two restore stages are implemented. Depending oninput and output usage, it is possible to take other stages into use as well. Theoperation signal is connected to the alarm LED 6.

GUID-ACA8588C-03FB-4389-B559-92CB612C6F8A V1 EN

Figure 17: Arc protection

Arc protection (ARCSARC1...3) is included as an optional function.

The arc protection offers individual function blocks for three arc sensors that canbe connected to the IED. The arc protection in this standard configuration detectsan arc flash and supplies the information for the operating arc protection unit,which de-energizes the faulty area by opening the circuit breaker. It is possible touse, for example, fast GOOSE communication to route the detected information tothe circuit breaker.

The alarm LED 10 is used as a common arc detected indication.

3.4.3.2 Functional diagram for disturbance recorder



GUID-95F1202A-A4AD-46C5-B059-B36F02FB2951 V1 EN

Figure 18: Disturbance recorder

All start and operate signals from the protection stages are routed to trigger thedisturbance recorder or alternatively only to be recorded by the disturbancerecorder depending on the parameter settings. Additionally, the ARC protection,synchrocheck and voltage measuring circuit related signals are also connected.



3.4.3.3 Functional diagrams for control and interlocking

GUID-4F3709BF-87AC-4EB7-86AE-0FD490AA925A V1 EN

Figure 19: Synchronism and energizing check

The synchronism and energizing check (SECRSYN) function is offered in thestandard configuration. It is used for interconnecting two separate power systemnetwork parts. The standard configuration is implemented to be used as continuousmode by default. The permission signal for circuit breaker closing is connected toX100:PO2 and it can be used in series in circuit breaker closing circuit. Theinformation that systems are synchronous to be interconnected is connected to LED8.

SECRSYN is blocked if primary voltage transformer fuse is blown (X130:BI1) orif the miniature circuit breaker failure is detected from the line or bus-sidesecondary voltage measuring circuit (X130:BI2 or X130:BI3).



GUID-134FABAF-FD7D-4CDF-A47A-B6E9D988065E V1 EN

Figure 20: Master Trip

The operate signals from the protections are connected to the two trip outputcontacts PO3 (X100:15-19) and PO4 (X100:20-24) via the corresponding MasterTrips TRPPTRC1 and TRPPTRC2.

TRPPTRC1 and 2 provide the lockout/latching function, event generation and thetrip signal duration setting. If the lockout operation mode is selected, one binaryinput can be reassigned to the RST_LKOUT input of the Master Trip to enableexternal reset with a push button.



GUID-1CF419D7-518A-431F-BCAB-02413BE39E22 V1 EN

Figure 21: Disconnector position indication

The voltage transformer truck position indication is done with DCSXSWI1function block. There are three disconnector status blocks (DCSXSWI1…3)available in the IED. The remaining two not described in the functional diagramare available in PCM600 for connection where applicable.

The binary inputs X110:5 and X110:6 are used for connection of voltagetransformer truck position. The inputs are connected to DCSXSWI1.

Table 13: Device positions indicated by binary inputs 5 and 6

Primary device position Input to be energized Input 5 (X110:8-9) Input 6 (X110:10-9)

Busbar disconnector closed x

Busbar disconnector open x

Voltage transformer truck in serviceposition

x

Voltage transformer truck in test position x

The binary inputs X110:7 and X110:8 are used for the position indication of thebusbar-side earth switch.



GUID-02E97DB4-8623-4B39-A38A-589778A9186A V1 EN

Figure 22: Common alarm/indication 1 and 2

The signal outputs from the IED are connected to give dedicated information on:

• Start of any protection function SO1 (X100:10-12)• Operation (trip) of any protection function SO2 (X100: 13-15)

TPGAPC are timers and used for setting the minimum pulse length for the outputs.There are four generic timers (TPGAPC1..4) available in the IED. The remainingones not described in the functional diagram are available in PCM600 forconnection where applicable.

3.5 Standard configuration B

3.5.1 Applications

The standard configuration is intended for automatic voltage regulation of powertransformers equipped with an on-load tap changer. It also features three-stage three-



phase non-directional overcurrent protection, three-phase under and overvoltageprotection. The IED also incorporates a thermal overload protection function,which supervises the thermal stress of the transformer windings to preventpremature aging of the winding's insulation.

The RTD/mA input module is optional in the standard configuration. When usingthe RTD/mA input module it is possible to have the tap changer position indicationas an mA signal, ambient temperature of the power transformer can be used inthermal protection and the multi-purpose protection functions are available. Themulti-purpose protection function enables protection based on analog values fromthe IEDs RTD/mA input module, or from other IEDs using analog horizontalGOOSE messaging.

The IED with a standard configuration is delivered from the factory with defaultsettings and parameters. The end-user flexibility for incoming, outgoing andinternal signal designation within the IED enables this configuration to be furtheradapted to different primary circuit layouts and the related functionality needs bymodifying the internal functionality using PCM600.

3.5.2 FunctionsTable 14: Functions included in the standard configuration B

Functionality IEC 61850 IEC 60617 IEC-ANSIProtection

Three-phase non-directionalovercurrent protection, low stage,instance 1

PHLPTOC1 3I> (1) 51P-1 (1)

Three-phase non-directionalovercurrent protection, high stage,instance 1

PHHPTOC1 3I>> (1) 51P-2 (1)

Three-phase non-directionalovercurrent protection,instantaneous stage, instance 1

PHIPTOC1 3I>>> (1) 50P/51P (1)


PHPTUV1 3U< (1) 27 (1)


PHPTUV2 3U< (2) 27 (2)


PHPTUV3 3U< (3) 27 (3)


PHPTOV1 3U> (1) 59 (1)


PHPTOV2 3U> (2) 59 (2)


PHPTOV3 3U> (3) 59 (3)

Three-phase thermal overloadprotection for power transformers,two time constants

T2PTTR1 3Ith>T 49T





Functionality IEC 61850 IEC 60617 IEC-ANSIMaster trip, instance 2 TRPPTRC2 Master Trip (2) 94/86 (2)

Multi-purpose protection, instance 1 MAPGAPC1 MAP (1) MAP (1)



Control









Tap changer position indication TPOSSLTC1 TPOSM 84M

Tap changer control with voltageregulator

OLATCC1 COLTC 90V




Current circuit supervision CCRDIF1 MCS 3I MCS 3I

Fuse failure supervision SEQRFUF1 FUSEF 60

Measurement


Three-phase current measurement,instance 1

CMMXU1 3I 3I

Sequence current measurement CSMSQI1 I1, I2, I0 I1, I2, I0



Three-phase power and energymeasurement, including powerfactor

PEMMXU1 P, E P, E

RTD/mA measurement XRGGIO130 X130 (RTD) X130 (RTD)

3.5.2.1 Default I/O connections

Table 15: Default connections for binary inputs

Binary input Default usage Connector pinsX110-BI1 Tap changer operates X110-1,2

X110-BI2 Voltage transformer secondary MCB open X110-3,4

X110-BI3 Lower local request X110-5,6

X110-BI4 Raise local request X110-7,6




Binary input Default usage Connector pinsX110-BI5 Activate parallel operation X110-8,9

X110-BI6 Activate automatic mode X110-10,9

X110-BI7 Circuit breaker closed indication X110-11,12

X110-BI8 Circuit breaker open indication X110-13,12

Table 16: Default connections for binary inputs (alternative to the RTD card)

Binary input Default usage Connector pinsX130-BI1 BCD sign bit (tap changer position) X130-1,2

X130-BI2 BCD bit 1 MSB X130-2,3

X130-BI3 BCD bit 2 X130-4,5

X130-BI4 BCD bit 3 X130-5,6

X130-BI5 BCD bit 4 X130-7,8

X130-BI6 BCD bit 5 LSB X130-8,9

Table 17: Default connections for RDT/mA inputs

RTD/mA input Default usage Connector pinsX130-AI1 Tap changer position X130-1,2

X130-AI2 X130-3,4

X130-AI3 Transformer ambient temperature X130-5,6,11c

X130-AI4 X130-7,8,11c

X130-AI5 X130-9,10,11c

X130-AI6 X130-13,14,12c

X130-AI7 X130-15,16,12c

X130-AI8 X130-17,18,12c

Table 18: Default connections for binary outputs

Binary output Default usage Connector pinsX100-PO1 Lower own command X100-6,7

X100-PO2 Raise own command X100-8,9

X100-SO1 General start indication X100-10,11,(12)

X100-SO2 General operate indication X100-13,14

X100-PO3 Master trip X100-15-19

X100-PO4 Close circuit breaker X100-20-24

X110-SO1 Tap changer control alarm X110-14,15,16

X110-SO2 Overcurrent operate alarm X110-17,18,19

X110-SO3 Voltage protection operate alarm X110-20,21,22

X110-SO4 Overload protection operate alarm X110-23,24



Table 19: Default connections for LEDs

LED Default usage1 Overcurrent protection operated

2 Overvoltage protection operated

3 Undervoltage protection operated

4 Thermal overload protection operated

5 Raise own

6 Lower own

7 Disturbance recorder triggered

8 Tap changer control alarm

9 Supervision

10 Tap changer operates

11

3.5.2.2 Default disturbance recorder settings

Table 20: Default analog channel selection and text settings

Channel Selection and text1 IL1

2 IL2

3 IL3

4 Io

5 U1

6 U2

7 U3

8 -

9 -

10 -

11 -

12 -

Additionally, all the digital inputs that are connected by default are also enabledwith the setting. Default triggering settings are selected depending on theconnected input signal type. Typically all protection START signals are selected totrigger the disturbance recorded by default.

3.5.3 Functional diagrams



The functional diagrams describe the default input, output, alarm LED and function-to-function connections. The default connections can be viewed and changed withPCM600 according to the application requirements, if necessary.

The analog channels, measurements from current transformers and voltagetransformers, have fixed connections towards the different function blocks insidethe IED’s standard configuration. Exceptions from this rule are the eight analogchannels available for the disturbance recorder function. These channels are freelyselectable and a part of the disturbance recorder’s parameter settings.

The analog channels are assigned to different functions. The common signalmarked with 3I represents the three phase currents and 3U represents the threephase voltages. The signal marked with Uo represents the measured residualvoltage via open-delta connected voltage transformers. The signal marked with Iorepresents the measured residual current, via a sum connection of second currenttransformer cores of the phase current transformers.

3.5.3.1 Functional diagrams for protection

The functional diagrams describe the IED’s protection functionality in detail andpicture the factory set default connections.

GUID-2125AE49-AD79-460A-AF83-3965D2F06F2F V1 EN

Figure 23: Overcurrent protection



Three overcurrent stages (PHLPTOC1, PHHPTOC1 and PHIPTOC1) are offeredfor overcurrent and short-circuit protection. LED 1 is used for indicating theoperation of overcurrent and short circuit functions. Also the same alarminformation is connected to the binary output SO2 (X110:17-19).

All operate signals are connected to the Master Trip and also to the alarm LEDs.LED 1 indicates operation of overcurrent and LED 2 operation of overvoltageprotection functions. LED 3 indicates operation of undervoltage and LED 4thermal overload protection.

GUID-C07A4101-8768-4365-BB4F-17CF3CF3D075 V1 EN

Figure 24: Thermal overload protection

Three-phase thermal overload protection (T2PTTR1) provides indication onoverload situations. The operate signal of the thermal overload protection isconnected to the Master Trip and also to an alarm LED 4.

If the RTD/mA input module is included in the IED, the ambient temperature ofthe power transformer is connected from the RTD channel to the thermal overloadfunction.



GUID-3EC07F90-DCAB-436A-B36F-965BD8AAB645 V1 EN

Figure 25: Overvoltage protection

Three overvoltage protection stages (PHPTOV1, PHPTOV2 and PHPTOV3) offerprotection against abnormal overvoltage conditions in the power system. LED 2indicates the operation of PHPTOV. The same alarm information is connected tothe binary output SO3 (X110:20-22).



GUID-CA6719A8-E586-4B52-80F2-9504EA0CCA26 V1 EN

Figure 26: Undervoltage protection

Three undervoltage protection stages (PHPTUV1, PHPTUV2 and PHPTUV3)offer protection against abnormal undervoltage conditions in the power system.LED 3 indicates the operation of PHPTUV. The same alarm information isconnected to the binary output SO3 (X110:20-22).

3.5.3.2 Functional diagrams for disturbance recorder and supervisionfunctions



GUID-F538B88A-B5BB-4DB8-8364-06E7CF14239C V1 EN

Figure 27: Disturbance recorder

All start and operate signals from the protection stages are routed to trigger thedisturbance recorder or alternatively only to be recorded by the disturbancerecorder depending on the parameter settings. Additionally, the supervision relatedsignals, tap changer control signals and circuit breaker position indications are alsoconnected.



GUID-E7EAE99F-92BC-4192-B485-EB1677BA407D V1 EN

Figure 28: Trip circuit supervision

Two separate trip circuit supervision functions are included, TCSSCBR1 for PO3(X100:15-19) for Master trip and TCSSCBR2 for PO4 (X100:20-24) for circuitbreaker closing. The trip circuit supervision 1 is blocked by the Master Trip(TRPPTRC1) and the circuit-breaker open position signal. The trip circuitsupervision 2 is blocked by the circuit breaker closed position signal. The tripcircuit supervision alarm indication is connected to LED 9.

The fuse failure supervision SEQRFUF1 detects failures in voltage measurementcircuits. Failures, such as open miniature circuit breaker, are detected and the alarmis connected to supervision alarm LED 9.

Failures in current measuring circuits are detected by CCRDIF. The alarm signal isconnected to the supervision alarm LED 9.

3.5.3.3 Functional diagrams for control and interlocking



GUID-73D10A91-CE58-4368-9C88-39D2268580E6 V1 EN

Figure 29: Master Trip

The operate signals from the protections are connected to the trip output contactPO3 (X100:15-19) via the corresponding Master Trip TRPPTRC1.

TRPPTRC provides the lockout/latching function, event generation and the tripsignal duration setting. If the lockout operation mode is selected, one binary inputcan be reassigned to the RST_LKOUT input of the Master Trip to enable externalreset with a push button.

GUID-E4270342-93C0-4C06-B8F2-297E24A434FE V1 EN

Figure 30: On load tap changer control

The on load tap changer control functionality is provided with the OLATCC1function. Both manual and automatic controlling of the on load tap changer is donevia OLATCC. The external push button controlling of the local tap changer can bewired to binary inputs, BI3 (X110:5-6) for lower request and BI4 (X110:7-6) forraise request. Also it is possible to set the function into parallel mode withactivating the BI5 (X110:8-9) input and to the automatic mode with BI6 (X110:10-9).



The tap changer operating information can be connected to the binary input BI1(X110:1-2).

OLATCC is blocked in automatic mode as a default setting if the LTC_BLOCKinput is active. The activation of the input fuse failure or current circuit failure isdetected.

The output commands are routed to the binary outputs and programmable LEDs.The raise command is connected to PO2 (X100:8-9) and to the alarm LED 5. Thelower command is connected to PO1 (X100:6-7) and to the alarm LED 6.

The common alarm signal of OLATCC1 is connected to SO1 (X110:14-16) and tothe alarm LED 8.

GUID-61FA8F81-6848-4DBE-83B8-0750C33AA255 V1 EN

Figure 31: Circuit breaker control and interlocking

The ENA_CLOSE input, which enables the closing of the circuit breaker, is astatus of the Master Trip in the breaker control function block CBXCBR. The openoperation is always enabled.

If the ENA_CLOSE signal is completely removed from the breakercontrol function block CBXCBR with PCM600, the functionassumes that the breaker close commands are allowed continuously.



GUID-A6A3A186-BAC4-4609-B163-E13A00C528D6 V1 EN

Figure 32: Tap changer position indication

The tap changer position indication (TPOSSLTC1) can be made by using binarycoded information or an mA signal. It depends on the selected IED hardware. Byusing the mA/RTD input module in the X130 slot, the tap changer position can beconnected as an mA signal. If the binary input output card is selected in the X130slot, the position indication can be made with binary coded information.

When the mA/RTD card is used, the ambient temperature of the power transformeris connected from first RTD channel to the thermal overload protection function.



GUID-160A639B-35DA-446D-B176-D606EBE3FDB9 V1 EN

Figure 33: Common alarm/indication 1-5

The signal outputs from the IED are connected to give dedicated information on:

• Start of any protection function SO1 (X100:10-12)• Operation (trip) of any protection function SO2 (X100:13-14)• Operation of overcurrent protection function SO2 (X110:17-19)• Operation of voltage protection function SO3 (X110:20-22)• Operation of thermal overload protection SO4 (X110:23-24)

TPGAPC are timers and used for setting the minimum pulse length for the outputs.There are four generic timers (TPGAPC1..4) available in the IED. The remainingones not described in the functional diagram are available in PCM600 forconnection where applicable.



Section 4 Requirements for measurementtransformers

4.1 Current transformers

4.1.1 Current transformer requirements for non-directionalovercurrent protectionFor reliable and correct operation of the overcurrent protection, the CT has to bechosen carefully. The distortion of the secondary current of a saturated CT mayendanger the operation, selectivity, and co-ordination of protection. However,when the CT is correctly selected, a fast and reliable short circuit protection can beenabled.

The selection of a CT depends not only on the CT specifications but also on thenetwork fault current magnitude, desired protection objectives, and the actual CTburden. The protection settings of the IED should be defined in accordance withthe CT performance as well as other factors.

4.1.1.1 Current transformer accuracy class and accuracy limit factor

The rated accuracy limit factor (Fn) is the ratio of the rated accuracy limit primarycurrent to the rated primary current. For example, a protective current transformerof type 5P10 has the accuracy class 5P and the accuracy limit factor 10. Forprotective current transformers, the accuracy class is designed by the highestpermissible percentage composite error at the rated accuracy limit primary currentprescribed for the accuracy class concerned, followed by the letter "P" (meaningprotection).

Table 21: Limits of errors according to IEC 60044-1 for protective current transformers

Accuracy class Current error atrated primarycurrent (%)

Phase displacement at rated primarycurrent

Composite error atrated accuracy limitprimary current (%)minutes centiradians

5P ±1 ±60 ±1.8 5

10P ±3 - - 10

The accuracy classes 5P and 10P are both suitable for non-directional overcurrentprotection. The 5P class provides a better accuracy. This should be noted also ifthere are accuracy requirements for the metering functions (current metering,power metering, and so on) of the IED.

1MRS757054 C Section 4Requirements for measurement transformers


The CT accuracy primary limit current describes the highest fault currentmagnitude at which the CT fulfils the specified accuracy. Beyond this level, thesecondary current of the CT is distorted and it might have severe effects on theperformance of the protection IED.

In practise, the actual accuracy limit factor (Fa) differs from the rated accuracylimit factor (Fn) and is proportional to the ratio of the rated CT burden and theactual CT burden.

The actual accuracy limit factor is calculated using the formula:

F FS S

S Sa n

in n

in

≈ ×

+

+

A071141 V1 EN

Fn the accuracy limit factor with the nominal external burden Sn

Sin the internal secondary burden of the CT

S the actual external burden

4.1.1.2 Non-directional overcurrent protection

The current transformer selectionNon-directional overcurrent protection does not set high requirements on theaccuracy class or on the actual accuracy limit factor (Fa) of the CTs. It is, however,recommended to select a CT with Fa of at least 20.

The nominal primary current I1n should be chosen in such a way that the thermaland dynamic strength of the current measuring input of the IED is not exceeded.This is always fulfilled when

I1n > Ikmax / 100,

Ikmax is the highest fault current.

The saturation of the CT protects the measuring circuit and the current input of theIED. For that reason, in practice, even a few times smaller nominal primary currentcan be used than given by the formula.

Recommended start current settingsIf Ikmin is the lowest primary current at which the highest set overcurrent stage is tooperate, the start current should be set using the formula:

Current start value < 0.7 x (Ikmin / I1n)

I1n is the nominal primary current of the CT.

Section 4 1MRS757054 CRequirements for measurement transformers


The factor 0.7 takes into account the protection IED inaccuracy, currenttransformer errors, and imperfections of the short circuit calculations.

The adequate performance of the CT should be checked when the setting of thehigh set stage overcurrent protection is defined. The operate time delay caused bythe CT saturation is typically small enough when the overcurrent setting isnoticeably lower than Fa.

When defining the setting values for the low set stages, the saturation of the CTdoes not need to be taken into account and the start current setting is simplyaccording to the formula.

Delay in operation caused by saturation of current transformersThe saturation of CT may cause a delayed IED operation. To ensure the timeselectivity, the delay must be taken into account when setting the operate times ofsuccessive IEDs.

With definite time mode of operation, the saturation of CT may cause a delay thatis as long as the time the constant of the DC component of the fault current, whenthe current is only slightly higher than the starting current. This depends on theaccuracy limit factor of the CT, on the remanence flux of the core of the CT, andon the operate time setting.

With inverse time mode of operation, the delay should always be considered asbeing as long as the time constant of the DC component.

With inverse time mode of operation and when the high-set stages are not used, theAC component of the fault current should not saturate the CT less than 20 times thestarting current. Otherwise, the inverse operation time can be further prolonged.Therefore, the accuracy limit factor Fa should be chosen using the formula:

Fa > 20*Current start value / I1n

The Current start value is the primary pickup current setting of the IED.

4.1.1.3 Example for non-directional overcurrent protection

The following figure describes a typical medium voltage feeder. The protection isimplemented as three-stage definite time non-directional overcurrent protection.

1MRS757054 C Section 4Requirements for measurement transformers


A071142 V1 EN

Figure 34: Example of three-stage overcurrent protection

The maximum three-phase fault current is 41.7 kA and the minimum three-phaseshort circuit current is 22.8 kA. The actual accuracy limit factor of the CT iscalculated to be 59.

The start current setting for low-set stage (3I>) is selected to be about twice thenominal current of the cable. The operate time is selected so that it is selective withthe next IED (not visible in the figure above). The settings for the high-set stageand instantaneous stage are defined also so that grading is ensured with thedownstream protection. In addition, the start current settings have to be defined sothat the IED operates with the minimum fault current and it does not operate withthe maximum load current. The settings for all three stages are as in the figure above.

For the application point of view, the suitable setting for instantaneous stage (I>>>)in this example is 3 500 A (5.83 x I2n). For the CT characteristics point of view, thecriteria given by the current transformer selection formula is fulfilled and also theIED setting is considerably below the Fa. In this application, the CT rated burdencould have been selected much lower than 10 VA for economical reasons.

Section 4 1MRS757054 CRequirements for measurement transformers


Section 5 IED physical connections

5.1 Inputs

5.1.1 Energizing inputs

5.1.1.1 Phase currents

The IED can also be used in single or two-phase applications byleaving one or two energizing inputs unoccupied. However, at leastterminals X120/7-8 must be connected.

Table 22: Phase current inputs included in configuration B

Terminal DescriptionX120-7, 8 IL1

X120-9, 10 IL2

X120-11, 12 IL3

5.1.1.2 Residual current

Table 23: Residual current input included in configuration B

Terminal DescriptionX120–13, 14 Io

5.1.1.3 Phase voltages

Table 24: Phase voltage inputs included in configuration B

Terminal DescriptionX120-1, 2 U1

X120-3, 4 U2

X120-5, 6 U3

1MRS757054 C Section 5IED physical connections


Table 25: Phase voltage inputs included in configuration A

Terminal DescriptionX130-11, 12 U1

X130-13, 14 U2

X130-15, 16 U3

Table 26: Reference voltage input for SECRSYN1 included in configuration A

Terminal DescriptionX130-9, 10 U12B

5.1.1.4 Residual voltage

Table 27: Residual voltage input included in configuration A

Terminal DescriptionX130-17, 18 Uo

5.1.2 RTD/mA inputsRTD/mA inputs are optional for configuration B.

Table 28: RTD/mA inputs

Terminal DescriptionX130-1 mA1 (AI1), +

X130-2 mA1 (AI1), -

X130-3 mA2 (AI2), +

X130-4 mA2 (AI2), -

X130-5 RTD1 (AI3), +

X130-6 RTD1 (AI3), -

X130-7 RTD2 (AI4), +

X130-8 RTD2 (AI4), -

X130-9 RTD3 (AI5), +

X130-10 RTD3 (AI5), -

X130-11 Common1)

X130-12 Common2)

X130-13 RTD4 (AI6), +

X130-14 RTD4 (AI6), -

X130-15 RTD5 (AI7), +


Section 5 1MRS757054 CIED physical connections


Terminal DescriptionX130-16 RTD5 (AI7), -

X130-17 RTD6 (AI8), +

X130-18 RTD6 (AI8), -

1) Common ground for RTD channels 1-3.2) Common ground for RTD channels 4-6.

5.1.3 Auxiliary supply voltage inputThe auxiliary voltage of the IED is connected to terminals X100/1-2. At DCsupply, the positive lead is connected to terminal X100-1. The permitted auxiliaryvoltage range (AC/DC or DC) is marked on the top of the LHMI of the IED.

Table 29: Auxiliary voltage supply

Terminal DescriptionX100-1 + Input

X100-2 - Input

5.1.4 Binary inputsThe binary inputs can be used, for example, to generate a blocking signal, tounlatch output contacts, to trigger the disturbance recorder or for remote control ofIED settings.

Table 30: Binary input terminals X110-1...13

Terminal DescriptionX110-1 BI1, +

X110-2 BI1, -

X110-3 BI2, +

X110-4 BI2, -

X110-5 BI3, +

X110-6 BI3, -

X110-6 BI4, -

X110-7 BI4, +

X110-8 BI5, +

X110-9 BI5, -

X110-9 BI6, -

X110-10 BI6, +

X110-11 BI7, +

X110-12 BI7, -

X110-12 BI8, -

X110-13 BI8, +



Binary inputs of slot X120 are available with configuration B.



X120-2 BI1, -

X120-3 BI2, +

X120-2 BI2, -

X120-4 BI3, +

X120-2 BI3, -

X120-5 BI4, +

X120-6 BI4, -

Binary inputs of slot X130 are optional for configuration B.



X130-2 BI1, -

X130-2 BI2, -

X130-3 BI2, +

X130-4 BI3, +

X130-5 BI3, -

X130-5 BI4, -

X130-6 BI4, +

X130-7 BI5, +

X130-8 BI5, -

X130-8 BI6, -

X130-9 BI6, +

Binary inputs of slot X130 are available with configuration A.



X130-2 BI1, -

X130-3 BI2, +

X130-4 BI2, -

X130-5 BI3, +

X130-6 BI3, -

X130-7 BI4, +

X130-8 BI4, -



5.2 Outputs

5.2.1 Outputs for tripping and controllingOutput contacts PO1, PO2, PO3 and PO4 are heavy-duty trip contacts capable ofcontrolling most circuit breakers. On delivery from the factory, the trip signalsfrom all the protection stages are routed to PO3 and PO4.

Table 34: Output contacts

Terminal DescriptionX100-6 PO1, NO

X100-7 PO1, NO

X100-8 PO2, NO

X100-9 PO2, NO

X100-15 PO3, NO (TCS resistor)

X100-16 PO3, NO

X100-17 PO3, NO

X100-18 PO3 (TCS1 input), NO


X100-20 PO4, NO (TCS resistor)

X100-21 PO4, NO

X100-22 PO4, NO



5.2.2 Outputs for signallingOutput contacts SO1 and SO2 in slot X100 or SO1, SO2, SO3 and SO4 in slotX110 or SO1, SO2 and SO3 in slot X130 (optional) can be used for signalling onstart and tripping of the IED. On delivery from the factory, the start and alarmsignals from all the protection stages are routed to signalling outputs.

Table 35: Output contacts X100-10...14

Terminal DescriptionX100-10 SO1, common

X100-11 SO1, NC

X100-12 SO1, NO

X100-13 SO2, NO

X100-14 SO2, NO





X110-15 SO1, NO

X110-16 SO1, NC

X110-17 SO2, common

X110-18 SO2, NO

X110-19 SO2, NC

X110-20 SO3, common

X110-21 SO3, NO

X110-22 SO3, NC

X110-23 SO4, common

X110-24 SO4, NO

Output contacts of slot X130 are available in the optional BIO module (BIOB02A).

Output contacts of slot X130 are optional for configuration B.



X130-11 SO1, NO

X130-12 SO1, NC

X130-13 SO2, common

X130-14 SO2, NO

X130-15 SO2, NC

X130-16 SO3, common

X130-17 SO3, NO

X130-18 SO3, NC

5.2.3 IRFThe IRF contact functions as an output contact for the self-supervision system ofthe protection IED. Under normal operating conditions, the IED is energized andthe contact is closed (X100/3-5). When a fault is detected by the self-supervisionsystem or the auxiliary voltage is disconnected, the output contact drops off and thecontact closes (X100/3-4).

Table 38: IRF contact

Terminal DescriptionX100-3 IRF, common

X100-4 Closed; IRF, or Uaux disconnected

X100-5 Closed; no IRF, and Uaux connected



Section 6 Glossary

ANSI American National Standards InstituteASCII American Standard Code for Information InterchangeCT Current transformerDNP3 A distributed network protocol originally developed by

Westronic. The DNP3 Users Group has the ownershipof the protocol and assumes responsibility for itsevolution.

EMC Electromagnetic compatibilityGOOSE Generic Object Oriented Substation EventHMI Human-machine interfaceIEC International Electrotechnical CommissionIEC 60870-5-103 Communication standard for protective equipment; A

serial master/slave protocol for point-to-pointcommunication

IEC 61850 International standard for substation communicationand modelling

IED Intelligent electronic deviceIP address A set of four numbers between 0 and 255, separated by

periods. Each server connected to the Internet isassigned a unique IP address that specifies the locationfor the TCP/IP protocol.

LAN Local area networkLC Connector type for glass fibre cableLCD Liquid crystal displayLED Light-emitting diodeLHMI Local human-machine interfaceModbus A serial communication protocol developed by the

Modicon company in 1979. Originally used forcommunication in PLCs and RTU devices.

Modbus TCP/IP Modbus RTU protocol which uses TCP/IP and Ethernetto carry data between devices

PCM600 Protection and Control IED ManagerRJ-45 Galvanic connector typeRTU Remote terminal unit

1MRS757054 C Section 6Glossary


Single-linediagram

Simplified notation for representing a three-phasepower system. Instead of representing each of threephases with a separate line or terminal, only oneconductor is represented.

WAN Wide area networkWHMI Web human-machine interface

Section 6 1MRS757054 CGlossary


Contact us

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ABB LimitedDistribution AutomationManejaVadodara 390013, IndiaPhone +91 265 2604032Fax +91 265 2638922

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www.abb.com/substationautomation

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