REF630

Relion 630 series

Feeder Protection and ControlREF630Application Manual

Document ID: 1MRS756510Issued: 2014-11-28

Revision: EProduct version: 1.3

Copyright 2014 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 the 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.

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 product has been designed to be connected and communicate data andinformation via a network interface which should be connected to a securenetwork. It is the sole responsibility of the person or entity responsible for networkadministration to ensure a secure connection to the network and to take thenecessary measures (such as, but not limited to, installation of firewalls, applicationof authentication measures, encryption of data, installation of anti virus programs,etc.) to protect the product and the network, its system and interface included,against any kind of security breaches, unauthorized access, interference, intrusion,leakage and/or theft of data or information. ABB is not liable for any such damagesand/or losses.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 product is designed in accordance with the internationalstandards of the IEC 60255 series.

Table of contents

Section 1 Introduction.......................................................................5This manual........................................................................................5Intended audience..............................................................................5Product documentation.......................................................................6

Product documentation set............................................................6Document revision history.............................................................6Related documentation..................................................................7

Symbols and conventions...................................................................7Symbols.........................................................................................7Document conventions..................................................................8Functions, codes and symbols......................................................8

Section 2 REF630 overview...........................................................13Overview...........................................................................................13

Product version history................................................................13PCM600 and IED connectivity package version..........................13

Operation functionality......................................................................14Product variants...........................................................................14Optional functions........................................................................14

Physical hardware............................................................................15Local HMI.........................................................................................16

Display.........................................................................................16LEDs............................................................................................19Keypad........................................................................................19

Web HMI...........................................................................................19Authorization.....................................................................................21Communication.................................................................................21

Section 3 REF630 variants.............................................................23Presentation of preconfigurations.....................................................23

Preconfigurations.........................................................................24Preconfiguration A for open/closed ring feeder................................27

Application...................................................................................27Functions.....................................................................................28Input/output signal interfaces.......................................................29Preprocessing blocks and fixed signals ......................................30Control functions..........................................................................31

Bay control QCCBAY.............................................................31Apparatus control SCILO, GNRLCSWI, DAXCBR,DAXSWI.................................................................................31

Table of contents

REF630 1Application Manual

Autoreclosing DARREC.........................................................33Protection functions.....................................................................35

Three-phase current inrush detection INRPHAR...................35Non-directional overcurrent protection PHxPTOC.................35Directional overcurrent protection DPHxPDOC......................36Negative-sequence overcurrent protection NSPTOC............37Phase discontinuity protection PDNSPTOC...........................38Non-directional earth-fault protection EFxPTOC....................38Intermittent earth-fault protection INTRPTEF.........................38Directional earth-fault protection DEFxPDEF.........................39Thermal overload protection T1PTTR....................................40Circuit-breaker failure protection CCBRBRF..........................40Tripping logic TRPPTRC........................................................40Combined operate and start alarm signal..............................41Other output and alarm signals..............................................42

Supervision functions..................................................................42Trip circuit supervision TCSSCBR.........................................42Fuse failure and current circuit supervision SEQRFUF,CCRDIF..................................................................................42Circuit-breaker condition monitoring SSCBR.........................42

Measurement and analog recording functions............................43Binary recording and LED configuration......................................45

Preconfiguration B for radial overhead/mixed line feeder.................47Application...................................................................................47Functions.....................................................................................48Input/output signal interfaces.......................................................49Preprocessing blocks and fixed signals ......................................50Control functions..........................................................................51

Bay control QCCBAY.............................................................51Apparatus control SCILO, GNRLCSWI, DAXCBR,DAXSWI.................................................................................51Autoreclosing DARREC.........................................................53

Protection functions.....................................................................55Three-phase current inrush detection INRPHAR...................55Non-directional overcurrent protection PHxPTOC.................55Negative-sequence overcurrent protection NSPTOC............56Phase discontinuity protection PDNSPTOC...........................57Non-directional earth-fault protection EFxPTOC....................57Directional earth-fault protection DEFxPDEF ........................58Thermal overload protection T1PTTR....................................58Circuit-breaker failure protection CCBRBRF..........................59Tripping logic TRPPTRC........................................................60Combined operate and start alarm signal..............................60Other output and alarm signals..............................................61

Table of contents

2 REF630Application Manual



Preconfiguration C for ring/meshed feeder.......................................66Application...................................................................................66Functions.....................................................................................68Input/output signal interfaces.......................................................69Preprocessing blocks and fixed signals ......................................70Control functions..........................................................................71

Bay control QCCBAY.............................................................71Apparatus control SCILO, GNRLCSWI, DAXCBR,DAXSWI.................................................................................71Autoreclosing DARREC.........................................................73

Protection functions.....................................................................75Three-phase current inrush detection INRPHAR...................75Non-directional overcurrent protection PHxPTOC.................75Negative-sequence overcurrent protection NSPTOC............76Phase discontinuity protection PDNSPTOC...........................77Non-directional earth-fault protection EFxPTOC....................77Directional earth-fault protection DEFxPDEF.........................78Three-phase overvoltage protection PHPTOV.......................79Three-phase undervoltage protection PHPTUV.....................80Three-phase residual overvoltage protectionROVPTOV..............................................................................81Distance protection DSTPDIS................................................81Automatic switch onto fault logic CVRSOF............................82Local acceleration logic DSTPLAL.........................................82Scheme communication logic for distance protectionDSOCPSCH...........................................................................83Current reversal and weak-end infeed logic for distanceprotection CRWPSCH............................................................84Scheme communication logic for residual overcurrentprotection RESCPSCH...........................................................85Current reversal and scheme communication logic forresidual overcurrent RCRWPSCH.........................................86Thermal overload protection T1PTTR....................................87Circuit-breaker failure protection CCBRBRF..........................88Tripping logic TRPPTRC........................................................88Combined operate and start alarm signal..............................89Other output and alarm signals..............................................90

Table of contents




Preconfiguration D for bus sectionalizer ..........................................96Application...................................................................................96Functions.....................................................................................97Input/output signal interfaces.......................................................98Preprocessing blocks and fixed signals ......................................99Control functions..........................................................................99

Bay control QCCBAY.............................................................99Apparatus control.................................................................100

Protection functions...................................................................101Three-phase current inrush detection INRPHAR.................101Non-directional overcurrent protection PHxPTOC...............101Negative-sequence overcurrent protection NSPTOC..........101Non-directional earth-fault protection EFxPTOC..................102Circuit-breaker failure protection CCBRBRF........................103Tripping logic TRPPTRC......................................................103Combined operate and start alarm signal............................104Other output and alarm signals............................................104

Supervision functions................................................................105Trip circuit supervision TCSSCBR.......................................105Circuit-breaker condition monitoring SSCBR.......................105

Measurement and analog recording functions..........................106Binary recording and LED configurations..................................107

Section 4 Requirements for measurement transformers..............111Current transformers......................................................................111

Current transformer requirements for non-directionalovercurrent protection................................................................111

Current transformer accuracy class and accuracy limitfactor....................................................................................111Non-directional overcurrent protection.................................112Example for non-directional overcurrent protection..............113

Section 5 Glossary.......................................................................115

Table of contents


Section 1 Introduction

1.1 This manualThe application manual contains descriptions of preconfigurations. The manual canbe used as a reference for configuring control, protection, measurement, recordingand LED functions. The manual can also be used when creating configurationsaccording to specific application requirements.

1.2 Intended audienceThis 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 protection schemesand principles.

1MRS756510 E Section 1Introduction


1.3 Product documentation1.3.1 Product documentation set

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Quick start guideQuick installation guideBrochureProduct guideOperation manualInstallation manualEngineering manualTechnical manualApplication manualCommunication protocol manualPoint list manualCommissioning manual

GUID-C8721A2B-EEB9-4880-A812-849E1A42B02C V1 EN

Figure 1: The intended use of documents during the product life cycle

Product series- and product-specific manuals can be downloadedfrom the ABB Website http://www.abb.com/relion.

1.3.2 Document revision historyDocument revision/date Product version HistoryA/2009-09-15 1.0 First releaseB/2011-02-23 1.1 Content updated to correspond to the

product versionC/201105-18 1.1 Content updatedD/2012-08-29 1.2 Content updated to correspond to the

product versionE/2014-11-28 1.3 Content updated to correspond to the

product version

Section 1 1MRS756510 EIntroduction


Download the latest documents from the ABB Websitehttp://www.abb.com/substationautomation.

1.3.3 Related documentationName of the document Document IDDNP3 Communication Protocol Manual 1MRS756789IEC 61850 Communication Protocol Manual 1MRS756793IEC 60870-5-103 Communication Protocol Manual 1MRS757203Installation Manual 1MRS755958Operation Manual 1MRS756509Technical Manual 1MRS756508Engineering Manual 1MRS756800Commissioning Manual 1MRS756801

1.4 Symbols and conventions1.4.1 Symbols

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

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

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

The information icon alerts the reader of important facts andconditions.

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



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

1.4.2 Document conventionsA particular convention may not be used in this manual. Abbreviations and acronyms are spelled out in the glossary. The glossary also

contains definitions of important terms. Push button navigation in the LHMI menu structure is presented by using the

push button icons.To navigate between the options, use and .

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

WHMI menu names are presented in bold.Click Information in the WHMI menu structure.

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

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

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

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

1.4.3 Functions, codes and symbolsTable 1: Functions included in the IEDDescription IEC 61850 IEC 60617 ANSIProtectionThree-phase non-directionalovercurrent protection, low stage

PHLPTOC 3I> 51P-1

Three-phase non-directionalovercurrent protection, high stage

PHHPTOC 3I>> 51P-2

Three-phase non-directionalovercurrent protection, instantaneousstage

PHIPTOC 3I>>> 50P/51P

Three-phase directional overcurrentprotection, low stage

DPHLPDOC 3I> -> 67-1

Three-phase directional overcurrentprotection, high stage

DPHHPDOC 3I>> -> 67-2

Table continues on next page



Description IEC 61850 IEC 60617 ANSIDistance protection DSTPDIS Z< 21, 21P, 21NAutomatic switch-onto-fault logic CVRSOF SOTF SOTFFault locator SCEFRFLO FLOC 21FLAutoreclosing DARREC O -> I 79Non-directional earth-fault protection,low stage

EFLPTOC I0> 51N-1

Non-directional earth-fault protection,high stage

EFHPTOC I0>> 51N-2

Non-directional earth-fault protection,instantaneous stage

EFIPTOC I0>>> 50N/51N

Directional earth-fault protection, lowstage

DEFLPDEF I0> -> 67N-1

Directional earth-fault protection, highstage

DEFHPDEF I0>> -> 67N-2

Harmonics based earth-fault protection HAEFPTOC Io>HA 51NHATransient/intermittent earth-faultprotection

INTRPTEF I0> -> IEF 67NIEF

Admittance-based earth-fault protection EFPADM Yo>-> 21YNMulti-frequency admittance-basedearth-fault protection

MFADPSDE I0> ->Y 67YN

Wattmetric earth-fault protection WPWDE Po>-> 32NPhase discontinuity protection PDNSPTOC I2/I1> 46PDNegative-sequence overcurrentprotection

NSPTOC I2> 46

Three-phase thermal overloadprotection for feeder

T1PTTR 3Ith>F 49F

Three-phase current inrush detection INRPHAR 3I2f> 68Three-phase overvoltage protection PHPTOV 3U> 59Three-phase undervoltage protection PHPTUV 3U< 27Positive-sequence overvoltageprotection

PSPTOV U1> 47O+

Positive-sequence undervoltageprotection

PSPTUV U1< 47U+

Negative-sequence overvoltageprotection

NSPTOV U2> 47O-

Residual overvoltage protection ROVPTOV U0> 59GDirectional reactive powerundervoltage protection

DQPTUV Q>-->,3U< 32Q,27

Reverse power/directional overpowerprotection

DOPPDPR P> 32R/32O

Frequency gradient protection DAPFRC df/dt> 81ROverfrequency protection DAPTOF f> 81OUnderfrequency protection DAPTUF f< 81ULoad shedding LSHDPFRQ UFLS/R 81LSHCircuit breaker failure protection CCBRBRF 3I>/I0>BF 51BF/51NBF




Description IEC 61850 IEC 60617 ANSITripping logic TRPPTRC I -> O 94Multipurpose analog protection MAPGAPC MAP MAPProtection-related functionsLocal acceleration logic DSTPLAL LAL LALCommunication logic for residualovercurrent

RESCPSCH CLN 85N

Scheme communication logic DSOCPSCH CL 85Current reversal and WEI logic CRWPSCH CLCRW 85CRWCurrent reversal and WEI logic forresidual overcurrent

RCRWPSCH CLCRWN 85NCRW

ControlBay control QCCBAY CBAY CBAYInterlocking interface SCILO 3 3Circuit breaker/disconnector control GNRLCSWI I O CB/DC I O CB/DCCircuit breaker DAXCBR I O CB I O CBDisconnector DAXSWI I O DC I O DCLocal/remote switch interface LOCREM R/L R/LSynchrocheck SYNCRSYN SYNC 25Generic process I/OSingle point control (8 signals) SPC8GGIO - -Double point indication DPGGIO - -Single point indication SPGGIO - -Generic measured value MVGGIO - -Logic Rotating Switch for functionselection and LHMI presentation

SLGGIO - -

Selector mini switch VSGGIO - -Pulse counter for energy metering PCGGIO - -Event counter CNTGGIO - -Supervision and monitoringRuntime counter for machines anddevices

MDSOPT OPTS OPTM

Circuit breaker condition monitoring SSCBR CBCM CBCMFuse failure supervision SEQRFUF FUSEF 60Current circuit supervision CCRDIF MCS 3I MCS 3ITrip-circuit supervision TCSSCBR TCS TCMStation battery supervision SPVNZBAT U UEnergy monitoring EPDMMTR E EMeasured value limit supervision MVEXP - -Power qualityVoltage variation PHQVVR PQMU PQMVVoltage unbalance VSQVUB PQMUBU PQMUBV




Description IEC 61850 IEC 60617 ANSICurrent harmonics CMHAI PQM3I PQM3IVoltage harmonics (phase-to-phase) VPPMHAI PQM3Upp PQM3VppVoltage harmonics (phase-to-earth) VPHMHAI PQM3Upe PQM3VpgMeasurementThree-phase current measurement CMMXU 3I 3IThree-phase voltage measurement(phase-to-earth)

VPHMMXU 3Upe 3Upe

Three-phase voltage measurement(phase-to-phase)

VPPMMXU 3Upp 3Upp

Residual current measurement RESCMMXU I0 I0Residual voltage measurement RESVMMXU U0 U0Power monitoring with P, Q, S, powerfactor, frequency

PWRMMXU PQf PQf

Sequence current measurement CSMSQI I1, I2 I1, I2Sequence voltage measurement VSMSQI U1, U2 V1, V2Analog channels 1-10 (samples) A1RADR ACH1 ACH1Analog channels 11-20 (samples) A2RADR ACH2 ACH2Analog channels 21-30 (calc. val.) A3RADR ACH3 ACH3Analog channels 31-40 (calc. val.) A4RADR ACH4 ACH4Binary channels 1-16 B1RBDR BCH1 BCH1Binary channels 17 -32 B2RBDR BCH2 BCH2Binary channels 33 -48 B3RBDR BCH3 BCH3Binary channels 49 -64 B4RBDR BCH4 BCH4Station communication (GOOSE)Binary receive GOOSEBINRCV - -Double point receive GOOSEDPRCV - -Interlock receive GOOSEINTLKRC

V- -

Integer receive GOOSEINTRCV - -Measured value receive GOOSEMVRCV - -Single point receive GOOSESPRCV - -



Section 2 REF630 overview

2.1 OverviewREF630 is a comprehensive feeder management IED for protection, control,measuring and supervision of utility and industrial distribution substations.REF630 is a member of ABBs Relion product family and a part of its 630 seriescharacterized by functional scalability and flexible configurability. REF630 alsofeatures necessary control functions constituting an ideal solution for feeder baycontrol.The supported communication protocols including IEC 61850 offer seamlessconnectivity to industrial automation systems.

2.1.1 Product version historyProduct version Product history1.0 First release1.1 Support for IEC 60870-5-103 communication protocol

Analog GOOSE RTD module Additional arithmetic and logic function support Admittance-based earth-fault protection Wattmetric earth-fault protection Power quality functions

1.2 Reverse power/directional overpower protection1.3 Harmonics based EF detection

Reactive power undervoltage protection Multi-frequency admittance protection Operation time counter Comparison functions AND and OR gates with 20 inputs

2.1.2 PCM600 and IED connectivity package version Protection and Control IED Manager PCM600 Ver. 2.5 or later ABB REF630 Connectivity Package Ver. 1.3 or later

Application Configuration Parameter Setting Signal Matrix Signal Monitoring Disturbance Handling Event Viewer

1MRS756510 E Section 2REF630 overview


Graphical Display Editor Hardware Configuration IED Users IED Compare Communication Management Configuration Migration

Download connectivity packages from the ABB Websitehttp://www.abb.com/substationautomation or directly with theUpdate Manager in PCM600.

2.2 Operation functionality2.2.1 Product variants

The IED capabilities can be adjusted by selecting a product variant. The IEDcapabilities can be extended by adding HW and/or SW options to the basic variant.For example, the physical communication connector can be either an electrical oroptical Ethernet connector.The number of binary inputs and outputs depends on the amount of the optionalBIO modules selected. For a 4U IED, it is possible to take 2 additional BIOmodules at the maximum, and for a 6U IED, it is possible to take 4 additional BIOmodules at the maximum. Basic variant: 14 binary inputs and 9 binary outputs With one optional BIO module: 23 binary inputs and 18 binary outputs With two optional BIO modules: 32 binary inputs and 27 binary outputs With three optional BIO modules: 41 binary inputs and 36 binary outputs With four optional BIO modules: 50 binary inputs and 45 binary outputs

2.2.2 Optional functionsSome of the available functions are optional, that is, they are included in thedelivered product only when defined by the order code. Distance protection Fault locator Synchrocheck Phase sequence voltage functions

Positive-sequence overvoltage protection Positive-sequence undervoltage protection Negative-sequence overvoltage protection

Power quality functions

Section 2 1MRS756510 EREF630 overview


Voltage harmonics Current harmonics Voltage sags and swells Voltage unbalance

2.3 Physical hardwareThe mechanical design of the IED is based on a robust mechanical rack. The HWdesign is based on the possibility to adapt the HW module configuration todifferent customer applications.Table 2: IED contentsContent optionsLHMICommunication andCPU module

1 electrical Ethernet connector for the detached LHMI module (theconnector must not be used for any other purpose)1 Ethernet connector for communication (selectable electrical or opticalconnector)IRIG-B (external time synchronization) connector1 fibre-optic connector pair for serial communication (selectable plastic orglass fibre)14 binary control inputs

Auxiliary power/binaryoutput module

48-125 V DC or 100-240 V AC/110-250 V DCInput contacts for the supervision of the auxiliary supply battery level3 normally open power output contacts with TCS3 normally open power output contacts1 change-over signalling contact3 additional signalling contacts1 dedicated internal fault output contact

Analog input module 3 or 4 current inputs (1/5 A)4 or 5 voltage inputs (100/110/115/120 V)Max. 1 accurate current input for sensitive earth-fault protection (0.1/0.5 A)

Binary input andoutput module

3 normally open power output contacts1 change-over signalling contact5 additional signalling contacts9 binary control inputs

RTD input and mAoutput module 8 RTD-inputs (sensor/R/V/mA) 4 outputs (mA)

All external wiring, that is CT and VT connectors, BI/O connectors, power supplyconnector and communication connections, can be disconnected from the IED



modules with wiring, for example, in service situations. The CT connectors have abuild-in mechanism which automatically short-circuits CT secondaries when theconnector is disconnected from the IED.

2.4 Local HMIThe LHMI is used for setting, monitoring and controlling the IED. The LHMIcomprises the display, buttons, LED indicators and communication port.

A071260 V3 EN

Figure 2: Example of the LHMI

2.4.1 DisplayThe LHMI includes a graphical monochrome display with a resolution of 320 x240 pixels. The character size can vary. The amount of characters and rows fittingthe view depends on the character size and the view that is shown.The display view is divided into four basic areas.



A071258 V2 EN

Figure 3: Display layout1 Path2 Content3 Status4 Scroll bar (appears when needed)

The function button panel shows on request what actions are possible with thefunction buttons. Each function button has a LED indication that can be used as afeedback signal for the function button control action. The LED is connected to therequired signal with PCM600.



GUID-6828CE38-2B88-4BB5-8F29-27D2AC27CC18 V1 EN

Figure 4: Function button panelThe alarm LED panel shows on request the alarm text labels for the alarm LEDs.

GUID-3CBCBC36-EFCE-43A0-9D62-8D88AD6B6287 V1 EN

Figure 5: Alarm LED panelThe function button and alarm LED panels are not visible at the same time. Eachpanel is shown by pressing one of the function buttons or the Multipage button.Pressing the ESC button clears the panel from the display. Both the panels havedynamic width that depends on the label string length that the panel contains.



2.4.2 LEDsThe LHMI includes three protection status LEDs above the display: Ready, Startand Trip.There are 15 programmable alarm LEDs on the front of the LHMI. Each LED canindicate three states with the colors: green, yellow and red. The alarm texts relatedto each three-color LED are divided into three pages. Altogether, the 15 physicalthree-color LEDs can indicate 45 different alarms. The LEDs can be configuredwith PCM600 and the operation mode can be selected with the LHMI, WHMI orPCM600.

2.4.3 KeypadThe LHMI keypad contains push-buttons which are used to navigate in differentviews or menus. With the push-buttons you can control objects in the single-linediagram, for example, circuit breakers or disconnectors The push-buttons are alsoused to acknowledge alarms, reset indications, provide help and switch betweenlocal and remote control mode.The keypad also contains programmable push-buttons that can be configured eitheras menu shortcut or control buttons.

GUID-FE571EAC-D3AF-4E26-8C01-197F21AA96CA V1 EN

Figure 6: LHMI keypad with object control, navigation and command push-buttons and RJ-45 communication port

2.5 Web HMIThe WHMI enables the user to access the IED via a web browser. The supportedWeb browser versions are Internet Explorer 8.0, 9.0 and 10.0.



WHMI is disabled by default. To enable the WHMI, select Mainmenu/Configuration/HMI/Web HMI/Operation via the LHMI.

WHMI offers several functions. Alarm indications and event lists System supervision Parameter settings Measurement display Disturbance records Phasor diagram

Viewing phasor diagram with WHMI requires downloading a SVGViewer plugin.

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

A071242 V3 EN

Figure 7: Example view of the WHMIThe WHMI can be accessed locally and remotely. Locally by connecting the user's computer to the IED via the front

communication port. Remotely over LAN/WAN.



2.6 AuthorizationAt delivery, logging on to the IED is not required to be able to use the LHMI. TheIED user has full access to the IED as a SuperUser until users and passwords arecreated with PCM600 and written into the IED.The available user categories are predefined for LHMI and WHMI, each withdifferent rights.

Table 3: Available user categoriesUser category User rightsSystemOperator Control from LHMI, no bypassProtectionEngineer All settingsDesignEngineer Application configurationUserAdministrator User and password administration

All changes in user management settings cause the IED to reboot.

2.7 CommunicationThe IED supports communication protocols IEC 61850-8-1, IEC 60870-5-103 andDNP3 over TCP/IP.All operational information and controls are available through these protocols.However, some communication functionality, for example, horizontalcommunication (GOOSE) between the IEDs, is only enabled by the IEC 61850-8-1communication protocol.Disturbance files are accessed using the IEC 61850 or IEC 60870-5-103 protocols.Disturbance files are also available to any Ethernet based application in thestandard COMTRADE format. The IED can send binary signals to other IEDs (socalled horizontal communication) using the IEC 61850-8-1 GOOSE (GenericObject Oriented Substation Event) profile. Binary GOOSE messaging can, forexample, be employed for protection and interlocking-based protection schemes.The IED meets the GOOSE performance requirements for tripping applications indistribution substations, as defined by the IEC 61850 standard. Further, the IEDsupports the sending and receiving of analog values using GOOSE messaging.



Analog GOOSE messaging enables fast transfer of analog measurement valuesover the station bus, thus facilitating for example sharing of RTD input values,such as surrounding temperature values, to other IED applications. Analog GOOSEmessages can also be used in load shedding applications. The IED interoperateswith other IEC 61850 compliant IEDs, tools and systems and simultaneouslyreports events to five different clients on the IEC 61850 station bus. For a systemusing DNP3 over TCP/IP, events can be sent to four different masters. For systemsusing IEC 60870-5-103 IED can be connected to one master in a station bus with star-topology.All communication connectors, except for the front port connector, are placed onintegrated communication modules. The IED is connected to Ethernet-basedcommunication systems via the RJ-45 connector (10/100BASE-TX) or the fibre-optic multimode LC connector (100BASE-FX).IEC 60870-5-103 is available from optical serial port where it is possible to useserial glass fibre (ST connector) or serial plastic fibre (snap-in connector).The IED supports the following time synchronization methods with a timestampingresolution of 1 ms.Ethernet communication based SNTP (simple network time protocol) DNP3

With special time synchronization wiring IRIG-B

IEC 60870-5-103 serial communication has a time-stamping resolution of 10 ms.



Section 3 REF630 variants

3.1 Presentation of preconfigurationsThe 630 series IEDs are offered with optional factory-made preconfigurations forvarious applications. The preconfigurations contribute to faster commissioning andless engineering of the IED. The preconfigurations include default functionalitytypically needed for a specific application. Each preconfiguration is adaptableusing the Protection and Control IED Manager PCM600. By adapting thepreconfiguration the IED can be configured to suit the particular application.The adaptation of the preconfiguration may include adding or removing ofprotection, control and other functions according to the specific application,changing of the default parameter settings, configuration of the default alarms andevent recorder settings including the texts shown in the HMI, configuration of theLEDs and function buttons, and adaptation of the default single-line diagram.In addition, the adaptation of the preconfiguration always includes communicationengineering to configure the communication according to the functionality of theIED. The communication engineering is done using the communicationconfiguration function of PCM600.If none of the offered preconfigurations fulfill the needs of the intended area ofapplication, 630 series IEDs can also be ordered without any preconfiguration. Inthis case the IED needs to be configured from the ground up.The 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 logicsforming 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 which each constitute onefunctional entity. The external connections are also divided into sections. Only therelevant connections for a particular functional entity are presented in each section.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, an instance number, from one onwards.

1MRS756510 E Section 3REF630 variants


3.1.1 PreconfigurationsTable 4: REF630 preconfiguration ordering optionsDescription PreconfigurationPreconfiguration A for open/closed ring feeder A Preconfiguration B for radial overhead/mixed line feeder B Preconfiguration C for ring/meshed feeder C Preconfiguration D for bus sectionalizer D Number of instances available n

Table 5: Functions used in preconfigurationsDescription A B C D nProtectionThree-phase non-directional overcurrent protection, low stage 1 1 1 1 1Three-phase non-directional overcurrent protection, high stage 2 2 2 2 2Three-phase non-directional overcurrent protection, instantaneousstage 1 1 1 1 1Three-phase directional overcurrent protection, low stage 2 - - - 2Three-phase directional overcurrent protection, high stage 1 - - - 1Distance protection - - 1 - 1Automatic switch-onto-fault logic - - 1 - 2Fault locator - - - - 1Autoreclosing 1 1 1 - 2Non-directional earth-fault protection, low stage - 1 - 1 1Non-directional earth-fault protection, high stage 1 1 1 1 1Non-directional earth-fault protection, instantaneous stage - 1 - 1 1Directional earth-fault protection, low stage 2 1 3 - 3Directional earth-fault protection, high stage 1 - 1 - 1Harmonics based earth-fault protection - - - - 1Transient/intermittent earth-fault protection 1 - - - 1Admittance-based earth-fault protection - - - - 3Multi-frequency admittance-based earth-fault protection - - - - 1Wattmetric earth-fault protection - - - - 3Phase discontinuity protection 1 1 1 - 1Negative-sequence overcurrent protection 2 2 2 2 2Three-phase thermal overload protection for feeder 1 1 1 - 1Three-phase current inrush detection 1 1 1 1 1Three-phase overvoltage protection - - 3 - 3Three-phase undervoltage protection - - 3 - 3Positive-sequence overvoltage protection - - - - 2


Section 3 1MRS756510 EREF630 variants


Description A B C D nPositive-sequence undervoltage protection - - - - 2Negative-sequence overvoltage protection - - - - 2Residual overvoltage protection - - 3 - 3Directional reactive power undervoltage protection - - - - 2Reverse power/directional overpower protection - - - - 3Frequency gradient protection - - - - 5Overfrequency protection - - - - 5Underfrequency protection - - - - 5Load shedding - - - - 6Circuit breaker failure protection 1 1 1 1 2Tripping logic 1 1 1 1 2Multipurpose analog protection - - - - 16Protection-related functionsLocal acceleration logic - - 1 - 1Communication logic for residual overcurrent - - 1 - 1Scheme communication logic - - 1 - 1Current reversal and WEI logic - - 1 - 1Current reversal and WEI logic for residual overcurrent - - 1 - 1ControlBay control 1 1 1 1 1Interlocking interface 4 4 4 1 10Circuit breaker/disconnector control 4 4 4 1 10Circuit breaker 1 1 1 1 2Disconnector 3 3 3 - 8Local/remote switch interface - - - - 1Synchrocheck - - - - 1Generic process I/OSingle point control (8 signals) - - - - 5Double point indication - - - - 15Single point indication - - - - 64Generic measured value - - - - 15Logic Rotating Switch for function selection and LHMI presentation - - - - 10Selector mini switch - - - - 10Pulse counter for energy metering - - - - 4Event counter - - - - 1Supervision and monitoringRuntime counter for machines and devices - - - - 1Circuit breaker condition monitoring 1 1 1 1 2Fuse failure supervision 1 1 1 - 2




Description A B C D nCurrent circuit supervision 1 1 1 - 2Trip-circuit supervision 3 3 3 3 3Station battery supervision - - - - 1Energy monitoring - - - - 1Measured value limit supervision - - - - 40Power qualityVoltage variation - - - - 1Voltage unbalance - - - - 1Current harmonics - - - - 1Voltage harmonics (phase-to-phase) - - - - 1Voltage harmonics (phase-to-earth) - - - - 1MeasurementThree-phase current measurement 1 1 1 1 1Three-phase voltage measurement (phase-to-earth) 1 1 1 1 2Three-phase voltage measurement (phase-to-phase) - - - - 2Residual current measurement 1 1 1 1 1Residual voltage measurement 1 1 1 - 1Power monitoring with P, Q, S, power factor, frequency 1 1 1 1 1Sequence current measurement 1 1 1 1 1Sequence voltage measurement 1 1 1 1 1Disturbance recorder functionAnalog channels 1-10 (samples) 1 1 1 1 1Analog channels 11-20 (samples) - - - - 1Analog channels 21-30 (calc. val.) - - - - 1Analog channels 31-40 (calc. val.) - - - - 1Binary channels 1-16 1 1 1 1 1Binary channels 17-32 1 1 1 1 1Binary channels 33-48 1 1 1 1 1Binary channels 49-64 1 - 1 - 1Station communication (GOOSE)Binary receive - - - - 10Double point receive - - - - 32Interlock receive - - - - 59Integer receive - - - - 32Measured value receive - - - - 60Single point receive - - - - 64n = total number of available function instances regardless of the preconfiguration selected1, 2, ... = number of included instances



3.2 Preconfiguration A for open/closed ring feeder3.2.1 Application

The functionality of the IED is designed to be used for selective short-circuit,overcurrent and earth-fault protection of radial outgoing feeders on double busbarsystems with one circuit breaker. The configuration can be used in isolated neutralnetworks, resistant-earthed networks and compensated networks.The objects controlled by the IED are the circuit breaker and the disconnector. Theearth switch is considered to be operated manually. The open, close and undefinedstates of the circuit breaker, disconnectors and the earth switch are indicated on theLHMI.Required interlocking is configured in the IED.The preconfiguration includes: Control functions Current protection functions Supervision functions Disturbance recorders LEDs' configuration Measurement functions



3.2.2 Functions

CONDITION MONITORING AND SUPERVISION

1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 01 0 1 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 0

ORAND

CONTROL AND INDICATION 1) MEASUREMENT

PRE- CONFIGURATION

PROTECTION LOCAL HMI *)

REF630

REMARKS

Optionalfunction

Function(s) not enabled by default in preconguration, can be enabled afterwards

No. of instances enabled by default

2

No. of instances not enabled by default in preconguration, can be enabled afterwards

1

COMMUNICATION

Protocols: IEC 61850-8-1 IEC 60870-5-103 DNP3

Interfaces: Ethernet: TX (RJ45), FX (LC) Serial: Serial glass ber (ST), Serial plastic ber (snap-in connector)

ALSO AVAILABLE

- 5 prog. push buttons on LHMI- Disturbance and fault recorders- IED self-supervision - Local/Remote push button on LHMI- Sequence event recorder- User management- WebHMI

A

- I, U, Io, Uo, P, Q, E, pf, f- Symmetrical components- Limit value supervision

Analog interface types B

Current transformer 51)

Voltage transformer 41) One of available current transformer

inputs is sensitive (0.1 / 0.5 A)

*) Fixed or detached LHMI is available.

Object Ctrl 2)

CB 2

DC8

ES1) Check availability of binary inputs/outputs

from technical documentation2) Control and indication function for

primary object

3I>/Io>BF51BF/51NBF

Io>67N-1

df/dt>81R

IO94

11

TCSTCM

UU

OI79

11SYNC

25Io>HA51NHA

Z51N-1

Io>>>50N/51N

Io>>51N-2

Io>67N-2

Io>IEF67NIEF

Po>32N

1 13I>>

51P-2

3I>>>50P/51P

3I>67-1

3I>>67-2

3I>51P-1

I2/I1>46PD

I2>46

3Ith>F49F

3I2f>68

3U>59

U1>47O+

U147O-

Uo>59G

P>32R/32O

f>81O

f21YN

3U, 3UY67YN

3I

Io

UL1

UL2

UL3

UL1UL2UL3

Uo

Uo

3

FEEDER PROTECTION AND CONTROL IEDPreconguration A for open/closed ring feeder

OPTSOPTM

GUID-973EE09F-BEFA-40C3-AAEE-FB97B84EAA52 V1 EN

Figure 8: Functionality overview for preconfiguration A



3.2.3 Input/output signal interfacesTable 6: Interface of binary inputsHardware moduleinstance

Hardware channel Description

COM BI1 Circuit breaker closedCOM BI2 Circuit breaker openCOM BI3 Disconnector 1 closedCOM BI4 Disconnector 1 openCOM BI5 Earth switch closedCOM BI6 Earth switch openCOM BI7 Disconnector 2 closedCOM BI8 Disconnector 2 openCOM BI9 Circuit breaker truck closedCOM BI10 Circuit breaker truck openCOM BI11 External start of circuit breaker failure protectionCOM BI12 Pressure low from circuit breakerCOM BI13 Spring charged from circuit breakerCOM BI14 MCB for fuse failure supervisionBIO_3 BI1 Relay characteristics angle (RCA) controlBIO_3 BI2...BI9 Not connected

The outputs of the IED are categorized as power outputs (POx) and signal outputs(SOx). The power outputs can be used for closing and tripping of circuit breakersand disconnector control. The signal outputs are not heavy-duty outputs. They areused for alarm or signaling purposes.Table 7: Interface of binary outputsHardware moduleinstance


PSM BO1_PO Master trip 1 (circuit breaker open)PSM BO2_PO Master close (circuit breaker closed)PSM BO3_PO Master trip 2 (circuit breaker open)PSM BO4_PO Disconnector 1 openPSM BO5_PO Disconnector 1 closedPSM BO6_PO Not connectedPSM BO7_SO OC/DOC operate alarmPSM BO8_SO EF/DEF operate alarmPSM BO9_SO Common startBIO_3 BO1_PO Disconnector 2 openBIO_3 BO2_PO Disconnector 2 closedBIO_3 BO3_PO Backup trip




Hardware moduleinstance


BIO_3 BO4_SO Upstream OC/DOC blockBIO_3 BO5_SO Common operateBIO_3 BO6_SO Not connectedBIO_3 BO7_SO Circuit breaker monitoring alarmBIO_3 BO8_SO Supervision circuit alarmBIO_3 BO9_SO Not connected

The IED measures the analog signals needed for protection and measuringfunctions via galvanically isolated matching transformers. The matchingtransformer input channels 14 are intended for current measuring and channels7...10 for voltage measuring.Table 8: Interface of analog inputsHardware moduleinstance


AIM_2 CH1 Phase current IL1AIM_2 CH2 Phase current IL2AIM_2 CH3 Phase current IL3AIM_2 CH4 Neutral current I0AIM_2 CH5 Not connectedAIM_2 CH6 Not availableAIM_2 CH7 Phase voltage UL1AIM_2 CH8 Phase voltage UL2AIM_2 CH9 Phase voltage UL3AIM_2 CH10 Neutral voltage U0

3.2.4 Preprocessing blocks and fixed signalsThe analog current and voltage signals coming to the IED are processed bypreprocessing blocks. There are two types of preprocessing blocks based on 20samples per cycle and 80 samples per cycle. All function blocks functioning at 5ms task time need 80 samples per cycle whereas all the rest need 20 samples per cycle.A fixed signal block providing a logical TRUE and a logical FALSE output hasbeen used. Outputs are connected internally to other functional blocks when needed.

Even if the AnalogInputType setting of a SMAI block is set toCurrent, the MinValFreqMeas setting is still visible. This meansthat the minimum level for current amplitude is based on UBase. Asan example, if UBase is 20 kV, the minimum amplitude for currentis 20000 10% = 2000 A.



3.2.5 Control functions3.2.5.1 Bay control QCCBAY

Bay control is used to handle the selection of the operator place per bay. It providesblocking functions that can be distributed to different apparatuses within the bay.Bay control sends information about the permitted source to operate (PSTO) andblocking conditions to other functions within the bay, for example switch controlfunctions.

3.2.5.2 Apparatus control SCILO, GNRLCSWI, DAXCBR, DAXSWIApparatus control initializes and supervises proper selection and switches onprimary apparatus. Each apparatus requires interlocking function, switch controlfunction and apparatus functions.Circuit-breaker control functionThe circuit breaker is controlled by a combination of switch interlocking (SCILO),switch controller (GNRLCSWI) and circuit breaker controller (DAXCBR) functions.The position information of the circuit breaker and the truck are connected toDAXCBR. The interlocking logics for the circuit breaker have been programmedto open at any time, provided that the gas pressure inside the circuit breaker isabove the lockout limit. Closing of the circuit breaker is always prevented if thegas pressure inside the circuit breaker is below the lockout limit or the truck isopen or spring charge time is above the set limit. In case the earth switch is closed,check that both disconnectors are open while closing the circuit breaker.SCILO function checks for the interlocking conditions and provides closing andopening enable signals. The enable signal is used by GNRLCSWI function blockwhich checks for operator place selector before providing the final open or closesignal to DAXCBR function.The open, closed and undefined states of the circuit breaker are indicated on theLHMI.Disconnector 1, disconnector 2 and earth switch control functionDisconnector 1, disconnector 2, and earth switch are controlled by a combinationof SCILO, GNRLCSWI and DAXSWI functions. Each apparatus requires one setof these functions.The position information of the disconnectors and the earth switch are connected torespective DAXSWI functions via binary inputs. The interlocking logics for thedisconnector have been programmed so that it can be opened or closed only if otherthree apparatuses, that is circuit breaker, earth switch and one of the disconnectors,are open. Interlocking for the earth switch depends on the circuit-breaker condition.If the circuit breaker is open, it is possible to open or close the earth switch at any



time. If the circuit breaker is in closed, it is required that the other twodisconnectors are open.SCILO function checks for these conditions and provides closing and openingenable signals. The enable signal is used by GNRLCSWI function blocks whichcheck for operator place selector before providing the final open or close signal toDAXCBR function.The open, closed and undefined states of the disconnector 1, disconnector 2 andearth switch are indicated on the LHMI.

The interlocking condition for the disconnector can be different incase a bus sectionalizer is available in the system.



GUID-3FEC4A93-BFE0-4386-8091-0D83339E19EE V1 EN

Figure 9: Apparatus control

3.2.5.3 Autoreclosing DARRECMajority of medium voltage overhead line faults are transient and automaticallycleared by momentarily de-energizing the line, whereas the rest of the faults, 15 to20 percent, are cleared by longer interruptions. The de-energization of the faultplace for a wanted period of time is implemented by autoreclosing relays orfunctions. Automatic reclosing is capable of clearing most of the faults. At apermanent fault, autoreclosing is followed by the final tripping. A permanent faulthas to be located and cleared before the fault location can be re-energized.



The function block provides five programmable autoreclose shots for creatingautoreclosings of wanted type and duration, such as one high-speed and onedelayed autoreclosing. The function consists of six individual initiation linesINIT_1... INIT 6 from which lines INIT_1...3 are used in the preconfiguration. It ispossible to create an individual autoreclosing sequence for each input.In this preconfiguration the autoreclosing function is initiated (lines INIT_1..3)from the operation of protection functions. The autoreclosing function allows alsoinitiation from the start of the protection function, then opening the circuit breaker(OPEN CB) and performing a fast final trip.The autoreclosing function can be inhibited with the INHIBIT_RECL input.Operate signals of negative sequence overcurrent, phase discontinuity, intermittentearth fault and circuit-breaker gas pressure lock are connected to INHIBIT_RECLinput. Spring charged input available from the circuit breaker at binary inputCOM_101 BI13 is used to check the ready status of circuit breaker beforeautoreclosing. Inhibit autoreclose signal from the thermal overload protection isconnected to BLK_THERM input.The outputs describing closing command (reclose) to a circuit breaker,unsuccessful autoreclosing and autoreclosing locked-out (CLOSE CB,UNSUC_AR, and LOCKED) are connected to binary recorders. Whereasautoreclosing ready, autoreclosing in progress and autoreclosing locked-out(READY, INPRO and LOCKED) outputs are connected to LED indication on theLHMI.Status indicating that circuit breaker in open state is connected to the CB_POSinputs. With this connection the setting is CB closed Pos status = FALSE.CLOSE CB output is used for closing the circuit breaker. Before any autoreclosingsignal is activated the function block checks for the circuit breaker ready status.

If an industrial feeder employs cables it may not be advisable to useautoreclosing, as cable faults are not transient but permanent.



GUID-C341207A-5B43-415A-93E3-30FFBC16B9C7 V1 EN

Figure 10: Autoreclosing

3.2.6 Protection functions3.2.6.1 Three-phase current inrush detection INRPHAR

The configuration includes a three-phase current inrush detection function. Thefunction can be used for increasing, typically double, the set start value of thedirectional overcurrent (DOC) as well as non-directional overcurrent stage (OC)during inrush condition. This is done by the ENA_MULT input and the Start valuemult setting in the corresponding function blocks. The default multiplier setting is1.0.

3.2.6.2 Non-directional overcurrent protection PHxPTOCThe three-phase non-directional overcurrent functions are used for non-directionalone-phase, two-phase and three-phase overcurrent and short-circuit protection withdefinite time or various inverse definite minimum time (IDMT) characteristic. Theoperation of a stage is based on three measuring principles: DFT, RMS or peak-to-peak values.



The configuration includes four variants of non-directional overcurrent functions:high 1, high 2, low and instantaneous. The set of three phase currents, I3P, isconnected to the inputs. The inrush function can increase the start value of eachovercurrent function.A common operate and start signal from all the four non-directional overcurrentfunctions are connected to an OR-gate to form a combined non-directionalovercurrent operate and start signal which is used to provide a LED indication onthe LHMI. Also separate start and operate from all the four OC functions areconnected to the disturbance recorder.

GUID-35BF2B0F-6AD8-4062-93CE-BDA860891522 V1 EN

Figure 11: Non-directional overcurrent and negative-sequence overcurrentprotection

3.2.6.3 Directional overcurrent protection DPHxPDOCThe three-phase directional overcurrent functions are used for directional one-phase, two-phase and three-phase overcurrent and short-circuit protection withdefinite time or various inverse definite minimum time (IDMT) characteristic. Theoperation of a stage is based on three measuring principles: DFT, RMS or peak-to-peak values.The configuration includes three variants of directional overcurrent functions: high,low 1 and low 2. The polarizing quantity can be phase-to-phase voltage, phase-to-



ground voltage, positive-sequence voltage or negative-sequence voltage. The set ofthree phase currents and voltages, I3P and U3P, is connected to the inputs. Theinrush function can increase the start value of each overcurrent function.A common operate and start signal from all the three overcurrent functions areconnected to an OR-gate to form a combined directional overcurrent operate andstart signal which is used to provide a LED indication on the LHMI. Also separatestart and operate signals from all the three DOC functions are connected to adisturbance recorder.

GUID-80FF66BF-1F0E-4EDA-9CEC-F218D38B3963 V1 EN

Figure 12: Directional overcurrent, phase discontinuity and thermal overloadprotection

3.2.6.4 Negative-sequence overcurrent protection NSPTOCTwo instances of negative-sequence overcurrent detection are provided, forprotection against single-phasing, unbalanced load or asymmetrical feeder voltage.The set of three phase currents, I3P, is connected to the inputs.



A common operate and start signal from both NSPTOC functions are connected toan OR-gate to form a combined negative-sequence overcurrent operate and startsignal which is used to provide a LED indication on the LHMI. Also separate startand operate signals from the NSPTOC function is connected to the disturbancerecorder.

3.2.6.5 Phase discontinuity protection PDNSPTOCThe phase discontinuity protection functions are used for protection against brokenphase conductors in distribution networks. Definite-time (DT) characteristic isalways used. Operation of the stage is based on ratio of 2nd harmonic andfundamental frequency of phase currents.The set of three phase currents, I3P, is connected to the inputs. Operate and startsignals are used to trigger the disturbance recorder and to provide a LED indicationon the LHMI.

3.2.6.6 Non-directional earth-fault protection EFxPTOCThe non-directional earth-fault protection functions are used for protection underearth-fault conditions with definite-time (DT) or with inverse definite minimumtime (IDMT) characteristic when appropriate.The operation of the stage is based on three measuring principles: DFT, RMS or peak-to-peak values. The configuration includes high-stage non-directional currentfunctions. The set of three phase currents, I3P, is connected to the inputs.The start and operate signals from the high-stage non-directional current function isconnected to the disturbance recorder.

3.2.6.7 Intermittent earth-fault protection INTRPTEFIntermittent earth-fault function is a dedicated earth-fault protection function inintermittent and transient earth faults occurring in distribution networks. Definitetime (DT) characteristic is always used. In the configuration, the intermittentfunction is used in parallel with directional earth-fault protection. Directional earth-fault function is blocked by an intermittent earth-fault function to preventerroneous trips when the function is set to operate with Intermittent EF" mode.The start and operate signals from INTRPTEF is connected to the disturbancerecorder. Also a common operate and start signal from the high-stage earth-faultprotection and intermittent earth-fault functions are connected to an OR-gate toform a combined non-directional earth-fault operate and start signal which is usedto provide a LED indication on the LHMI.



3.2.6.8 Directional earth-fault protection DEFxPDEFThe directional earth-fault protection functions are used for directional earth-faultprotection with definite-time (DT) or with inverse definite minimum time (IDMT)characteristic when appropriate.The set of three phase currents, I3P, is connected to the inputs. The operation of thestage is based on three measuring principles: DFT, RMS or peak-to-peak values.The configuration includes three variants of directional earth-fault protectionfunction: high, low 1 and low 2. The set of three phase currents and voltages, I3Pand U3P, are connected to the inputs. The directional earth-fault protections areblocked by an intermittent earth-fault function.The IED's characteristics angle control can be done by binary input BIO_3 BI1. Acommon operate and start signal from all three directional earth-faults areconnected to an OR-gate to form a combined directional earth-fault operate andstart signal which are further used to trigger the disturbance recorder and to providea LED indication on the LHMI.

GUID-B2D2869A-F1F7-48A5-9A77-812B8C63F500 V1 EN

Figure 13: Earth-fault protection



3.2.6.9 Thermal overload protection T1PTTRThe three-phase thermal overload protection function is used for thermal protectionof the three-phase power cables and overhead lines. It has adjustable temperaturelimits for tripping, alarm and reclose inhibit. The thermal model applied uses onetime constant and the true RMS current measuring principle.The operate signal from the thermal overload protection is further used to triggerthe disturbance recorder. Both the operate and alarm signals provide a LEDindication on the LHMI.

3.2.6.10 Circuit-breaker failure protection CCBRBRFThe function is activated by the common operate command from the protectionfunctions. The breaker failure function issues a backup trip command to adjacentcircuit breakers in case the main circuit breaker fails to trip for the protectedcomponent. The backup trip is connected at binary output BIO_3 PO3.A failure of a circuit breaker is detected by measuring the current or by detectingthe remaining trip signal. Function also provides retrip. Retrip is used along withthe main trip, and is activated before the backup trip signal is generated in case themain breaker fails to open. Retrip is used to increase the operational reliability ofthe circuit breaker.

3.2.6.11 Tripping logic TRPPTRCTripping logic has been configured to provide tripping signal of required duration.The tripping circuit opens the circuit breaker on Receipt of operate signal from the protection function or Retrip signal from the circuit-breaker failure protection.

Two master tripping signals are available at binary output PSM PO1 and PSM PO3.



GUID-9C15DB69-98E5-49EB-836A-CF0B247D2DF4 V1 EN

Figure 14: Tripping logic and breaker failure protection

3.2.6.12 Combined operate and start alarm signalThe operate outputs of all protection functions are combined in an OR-gate to get acommon Operate output. This common operate signal is connected to a trippinglogic. It is also available as an alarm binary output, BIO_3_SO2, with a settableminimum alarm delay of 80 ms. Also, a common Start output is derived from thestart outputs of protection functions combined in an OR-gate. The output isavailable as an alarm binary output PSM SO3 with a settable minimum alarm delayof 80 ms.



3.2.6.13 Other output and alarm signals Combined directional and non-directional overcurrent (OC/DOC) operate

signal available at binary output PSM SO1 Combined directional and non-directional earth-fault (EF/DEF) operate signal

available at binary output PSM SO2 Combined alarm signal from circuit-breaker monitoring function available at

binary output BIO_3 SO4 Combined alarm signal from various supervision functions available at binary

output BIO_3 SO5 Upstream directional and non-directional overcurrent (OC/DOC) blocking

signal available at binary output BIO_3 SO1

3.2.7 Supervision functions3.2.7.1 Trip circuit supervision TCSSCBR

Two instances of trip circuit supervision function are used for supervising Mastertrip 1 and Master trip 2. Function continuously supervises trip circuit and an alarmis issued in case of a failure of a trip circuit. The function does not perform thesupervision itself but it is used as an aid for configuration.Function gives an indication via a LED on the LHMI on detection of any of the tripcircuit failure. To prevent unwanted alarms, the function is blocked when thecircuit breaker is open, one of the protection function operate signals is active.An instance of trip circuit supervision is used to check the proper functioning ofclosing circuit of the circuit breaker. This function is blocked when the circuitbreaker is in closed position to prevent unwanted alarms.

3.2.7.2 Fuse failure and current circuit supervision SEQRFUF, CCRDIFThe fuse failure and current circuit supervision functions give an alarm in case of afailure in the secondary circuits between the voltage transformer or currenttransformer and the IED respectively. The set of three phase currents and voltages,I3P and U3P, are connected to the inputs.An alarm is available on failure of the secondary circuits. Alarms are recorded by adisturbance recorder.

3.2.7.3 Circuit-breaker condition monitoring SSCBRThe circuit-breaker condition monitoring function checks for the health of thecircuit breaker. The circuit breaker status is connected to the function via binaryinputs. Function requires also pressure lockout input and spring charged inputconnected via binary input COM_101.BI12 and COM_101.BI13 respectively.Various alarm outputs from the function are combined in an OR-gate to create a



master circuit-breaker monitoring alarm, which is available at binary output BIO_3SO4.All of the alarms are separately connected to the binary recorder and a combinedalarm is available as an indication via a LED on the LHMI.

GUID-F364F9E6-D33D-4ADD-82DA-5CFFE1960055 V2 EN

Figure 15: Circuit-breaker condition monitoring and trip-circuit, fuse failure andcurrent measuring circuit supervision

3.2.8 Measurement and analog recording functionsThe measured quantities in this configuration are: Sequence current Sequence voltage Residual voltage Residual current Energy Phase current Phase voltage Line voltage Power with frequency



The measured quantities can be viewed in the measurement menu on the LHMI.All analog input channels are connected to the analog disturbance recorder. Whenany of these analog values violate the upper or lower threshold limits, the recorderunit is triggered which in turn will record all the signals connected to the recorder.Table 9: Signals connected to the analog recorderChannel ID DescriptionChannel 1 Phase A currentChannel 2 Phase B currentChannel 3 Phase C currentChannel 4 Neutral currentChannel 5 Phase A voltageChannel 6 Phase B voltageChannel 7 Phase C voltageChannel 8 Neutral voltage

Data connected to analog channels contain 20 samples per cycle.

GUID-AC75BF4F-D96B-4B06-B990-4FD23C4CE452 V1 EN

Figure 16: Measurement and analog recording functions



3.2.9 Binary recording and LED configurationAll of the start and operate outputs from the respective protection functions,various alarms from supervision functions, and important signals from control andprotective functions are connected to a binary recorder. In case of a fault, thebinary recorder is triggered which in turn will record all the signals connected tothe recorder.Table 10: Signals connected to the binary recorderChannel ID DescriptionChannel 1 Block by inrush protectionChannel 2 Start of directional overcurrent high stageChannel 3 Operate of directional overcurrent high stageChannel 4 Start of directional overcurrent low stage 1Channel 5 Operate of directional overcurrent low stage 1Channel 6 Start of directional overcurrent low stage 2Channel 7 Operate of directional overcurrent low stage 2Channel 8 Start of overcurrent high stage 1Channel 9 Operate of overcurrent high stage 1Channel 10 Start of overcurrent high stage 2Channel 11 Operate of overcurrent high stage 2Channel 12 Start of instantaneous overcurrent stageChannel 13 Operate of instantaneous overcurrent stageChannel 14 Start of overcurrent low stageChannel 15 Operate of overcurrent low stageChannel 16 Operate of thermal overloadChannel 17 Start of negative-sequence overcurrent stage 1Channel 18 Operate of negative-sequence overcurrent stage 1Channel 19 Start of negative-sequence overcurrent stage 2Channel 20 Operate of negative-sequence overcurrent stage 2Channel 21 Start of directional earth fault high stageChannel 22 Operate of directional earth fault high stageChannel 23 Start of directional earth fault low stage 1Channel 24 Operate of directional earth fault low stage 1Channel 25 Start of directional earth fault low stage 2Channel 26 Operate of directional earth fault low stage 2Channel 27 Start of earth-fault high stageChannel 28 Operate of earth-fault high stageChannel 29 Start of intermittent earth faultChannel 30 Operate of intermittent earth faultChannel 31 Start of phase-discontinuity protection




Channel ID DescriptionChannel 32 Operate of phase-discontinuity protectionChannel 33 Circuit breaker closedChannel 34 Circuit breaker is openChannel 35 Unsuccessful autoreclosingChannel 36 Autoreclosing function locked outChannel 37 Reclose by autoreclosingChannel 38 Backup trip from circuit-breaker failure protectionChannel 39 Retrip from circuit-breaker failure protectionChannel 40 Trip circuit alarm 1 (supervising master trip 1)Channel 41 Trip circuit alarm 2 (supervising master trip 2)Channel 42 Trip circuit alarm 3 (supervising closing circuit)Channel 43 Current circuit supervision alarmChannel 44 Fuse failureChannel 45 Closing time of circuit breaker exceeded the limitChannel 46 Opening time of circuit breaker exceeded the limitChannel 47 Spring charge time of circuit breaker exceeded the limitChannel 48 Number of circuit breaker operation exceeded the set limitChannel 49 Pressure in circuit breaker below lockout limitChannel 50 Circuit breaker maintenance alarm: number of operations exceeds the set limitChannel 51 Circuit breaker maintenance alarm: accumulated energy exceeds the set limitChannel 52 Circuit breaker not operated since long

The LEDs are configured for alarm indications.Table 11: LEDs configured on LHMI alarm page 1LED No LED color DescriptionLED 1 Yellow Combine start from DOCLED 1 Red Combine operate from DOCLED 2 Yellow Combine start from OCLED 2 Red Combine operate from OCLED 3 Yellow Combine start from NSOCLED 3 Red Combine operate from NSOCLED 4 Yellow Combine start from EFLED 4 Red Combine operate from EFLED 5 Yellow Combine start from DEFLED 5 Red Combine operate from DEFLED 6 Yellow Start from phase discontinuityLED 6 Red Operate from phase discontinuityLED 7 Yellow Operate from thermal overload




LED No LED color DescriptionLED 7 Red Alarm from thermal overloadLED 8 Green Autoreclosing readyLED 8 Yellow Autoreclosing in progressLED 8 Red Autoreclosing function locked outLED 9 Red Combine trip circuit supervision alarmLED 10 Red Backup trip from circuit-breaker

protection functionLED 11 Red Retrip from circuit-breaker protection

functionLED 12 Red Alarm from circuit-breaker monitoring

functionLED 13 Red Fuse failure supervisionLED 14 Red Current circuit supervision alarm

3.3 Preconfiguration B for radial overhead/mixed linefeeder

3.3.1 ApplicationThe functionality of the IED is designed to be used for selective short-circuit,overcurrent and earth-fault protection of impedance grounded population feederson double busbar systems with one circuit breaker.The objects controlled by the IED are the circuit breaker and the disconnector. Theearth switch is considered to be operated manually. The open, close and undefinedstates of the circuit breaker, disconnectors and the earth switch are indicated on theLHMI.Required interlocking is configured in the IED.The preconfiguration includes: Control functions Current protection functions Supervision functions Disturbance recorders LEDs' configuration Measurement functions



3.3.2 Functions

Io>Y67YN

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FEEDER PROTECTION AND CONTROL IEDPreconguration B for radial overhead/mixed line feeder

UFLS/R81LSH

6

OPTSOPTM

GUID-041037E1-4C3F-4F83-BFFB-995BA916B55B V1 EN

Figure 17: Functionality overview for preconfiguration B



3.3.3 Input/output signal interfacesTable 12: Interface of binary inputsHardware moduleinstance


COM BI1 Circuit breaker closedCOM BI2 Circuit breaker openCOM BI3 Disconnector 1 closedCOM BI4 Disconnector 1 openCOM BI5 Earth switch closedCOM BI6 Earth switch openCOM BI7 Disconnector 2 closedCOM BI8 Disconnector 2 openCOM BI9 Circuit breaker truck closedCOM BI10 Circuit breaker truck openCOM BI11 External start of circuit-breaker failure protectionCOM BI12 Pressure low from circuit breakerCOM BI13 Spring charged from circuit breakerCOM BI14 MCB for fuse failure supervision

The outputs of the IED are categorized as power outputs (POx) and signal outputs(SOx). The power outputs can be used for closing and tripping of circuit breakersand disconnector control. The signal outputs are not heavy-duty outputs. They areused for alarm or signaling purposes.Table 13: Interface of binary outputsHardware moduleinstance


PSM BO1_PO Master trip 1 (circuit breaker open)PSM BO2_PO Master close (circuit breaker closed)PSM BO3_PO Master trip 2 (circuit breaker open)PSM BO4_PO Disconnector 1 openPSM BO5_PO Disconnector 1 closedPSM BO6_PO Not connectedPSM BO7_SO OC operate alarmPSM BO8_SO EF/DEF operate alarmPSM BO9_SO Common startBIO_3 BO1_PO Disconnector 2 openBIO_3 BO2_PO Disconnector 2 closedBIO_3 BO3_PO Backup tripBIO_3 BO4_SO Upstream OC blockBIO_3 BO5_SO Common operate




Hardware moduleinstance


BIO_3 BO6_SO Not connectedBIO_3 BO7_SO Circuit-breaker monitoring alarmBIO_3 BO8_SO Supervision circuit alarmBIO_3 BO9_SO Not connected

The IED measures the analog signals needed for protection and measuringfunctions via galvanically isolated matching transformers. The matchingtransformer input channels 14 are intended for current measuring and channels7...10 for voltage measuring.Table 14: Interface of analog inputsHardware moduleinstance


AIM_2 CH1 Phase current IL1AIM_2 CH2 Phase current IL2AIM_2 CH3 Phase current IL3AIM_2 CH4 Neutral current I0AIM_2 CH5 Current I0 from CBCTAIM_2 CH6 Not availableAIM_2 CH7 Phase voltage UL1AIM_2 CH8 Phase voltage UL2AIM_2 CH9 Phase voltage UL3AIM_2 CH10 Neutral voltage U0

3.3.4 Preprocessing blocks and fixed signalsThe analog current and voltage signals coming to the IED are processed bypreprocessing blocks. There are two types of preprocessing blocks based on 20samples per cycle and 80 samples per cycle. All function blocks functioning at 5ms task time need 80 samples per cycle whereas all the rest need 20 samples per cycle.A fixed signal block providing a logical TRUE and a logical FALSE output hasbeen used. Outputs are connected internally to other functional blocks when needed.

Even if the AnalogInputType setting of a SMAI block is set toCurrent, the MinValFreqMeas setting is still visible. This meansthat the minimum level for current amplitude is based on UBase. Asan example, if UBase is 20 kV, the minimum amplitude for currentis 20000 10% = 2000 A.



3.3.5 Control functions3.3.5.1 Bay control QCCBAY

Bay control is used to handle the selection of the operator place per bay. It providesblocking functions that can be distributed to different apparatuses within the bay.Bay control sends information about the permitted source to operate (PSTO) andblocking conditions to other functions within the bay, for example switch controlfunctions.

3.3.5.2 Apparatus control SCILO, GNRLCSWI, DAXCBR, DAXSWIApparatus control initializes and supervises proper selection and switches onprimary apparatus. Each apparatus requires interlocking function, switch controlfunction and apparatus functions.Circuit-breaker control functionThe circuit breaker is controlled by a combination of switch interlocking (SCILO),switch controller (GNRLCSWI) and circuit breaker controller (DAXCBR) functions.The position information of the circuit breaker and the truck are connected toDAXCBR. The interlocking logics for the circuit breaker have been programmedto open at any time, provided that the gas pressure inside the circuit breaker isabove the lockout limit. Closing of the circuit breaker is always prevented if thegas pressure inside the circuit breaker is below the lockout limit or the truck isopen or spring charge time is above the set limit. In case the earth switch is closed,check that both disconnectors are open while closing the circuit breaker.SCILO function checks for the interlocking conditions and provides closing andopening enable signals. The enable signal is used by GNRLCSWI function blockwhich checks for operator place selector before providing the final open or closesignal to DAXCBR function.The open, closed and undefined states of the circuit breaker are indicated on theLHMI.Disconnector 1, disconnector 2 and earth switch control functionDisconnector 1, disconnector 2, and earth switch are controlled by a combinationof SCILO, GNRLCSWI and DAXSWI functions. Each apparatus requires one setof these functions.The position information of the disconnectors and the earth switch are connected torespective DAXSWI functions via binary inputs. The interlocking logics for thedisconnector have been programmed so that it can be opened or closed only if otherthree apparatuses, that is circuit breaker, earth switch and one of the disconnectors,are open. Interlocking for the earth switch depends on the circuit-breaker condition.If the circuit breaker is open, it is possible to open or close the earth switch at any



time. If the circuit breaker is in closed, it is required that the other twodisconnectors are open.SCILO function checks for these conditions and provides closing and openingenable signals. The enable signal is used by GNRLCSWI function blocks whichcheck for operator place selector before providing the final open or close signal toDAXCBR function.The open, closed and undefined states of the disconnector 1, disconnector 2 andearth switch are indicated on the LHMI.

The interlocking condition for the disconnector can be different incase a bus sectionalizer is available in the system.



GUID-3FEC4A93-BFE0-4386-8091-0D83339E19EE V1 EN

Figure 18: Apparatus control

3.3.5.3 Autoreclosing DARRECMajority of medium voltage overhead line faults are transient and automaticallycleared by momentarily de-energizing the line, whereas the rest of the faults, 15 to20 percent, are cleared by longer interruptions. The de-energization of the faultplace for a wanted period of time is implemented by autoreclosing relays orfunctions. Automatic reclosing is capable of clearing most of the faults. At apermanent fault, autoreclosing is followed by the final tripping. A permanent faulthas to be located and cleared before the fault location can be re-energized.



The function block provides five programmable autoreclose shots for creatingautoreclosings of wanted type and duration, such as one high-speed and onedelayed autoreclosing. The function consists of six individual initiation linesINIT_1... INIT 6 from which lines INIT_1...3 are used in the preconfiguration. It ispossible to create an individual autoreclosing sequence for each input.In this preconfiguration the autoreclosing function is initiated (lines INIT_1..3)from the operation of protection functions. The autoreclosing function allows alsoinitiation from the start of the protection function, then opening the circuit breaker(OPEN CB) and performing a fast final trip.The autoreclosing function can be inhibited with the INHIBIT_RECL input.Operate signals of negative sequence overcurrent, phase discontinuity, intermittentearth fault and circuit-breaker gas pressure lock are connected to INHIBIT_RECLinput. Spring charged input available from the circuit breaker at binary inputCOM_101 BI13 is used to check the ready status of circuit breaker beforeautoreclosing. Inhibit autoreclose signal from the thermal overload protection isconnected to BLK_THERM input.The outputs describing closing command (reclose) to a circuit breaker,unsuccessful autoreclosing and autoreclosing locked-out (CLOSE CB,UNSUC_AR, and LOCKED) are connected to binary recorders. Whereasautoreclosing ready, autoreclosing in progress and autoreclosing locked-out(READY, INPRO and LOCKED) o

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