REL 561 * 1€¦ · REL 561 is a line protection terminal for HV and EHV transmission systems and a part of the PYRAMID system. The different parts of the PYRAMID system are available

-REL 561 * 1.2Line differential protec:tion terminal

1MRK 506 006-BENPan" 1

ABB Network Partner

(SE 95 02 12)

Features .Numerical filtering and measuring techniquesensuring correct performance during transientcondition

.Versatile man machine communication from thefront of the protection and two optional built-inserial ports

.Extensive self supervision with fault diagnostics

.Event reports from the last ten disturbanceswith up to 150 time tagged events for each dis-turbance

.The following optional functions are available:

-Three zone distance protection function withcommunication logic

-Non-directional earth fault current protection

-Directional earth fault current protection withcommunication logic

-Accurate fault locator

-Three or single pole autoreclosing

-Synchrocheck-Breaker failure protection

-Disturbance recorder with up to 10 analogueand 48 binary signals

.Phase segregated line differential protection

.Current differential measurement evaluatingboth magnitude and phase angle

.Master/master design

.Settable through current stabilization

.Current transformer saturation detector increas-ing the degree of stabilization

.Operation time typically 28 ms

.Single pole tripping.CT Supervision function

.Digital communication

.Continuous compensation of transmissiondelay, enabling use of route switched communi-cation network

.MUX-ed 56/64 kbiVs channels complying toCCITT and EIA standards can be used

.Built in communication for dedicated opto fibresup to 30 km

.Additional communication options for dedicatedopto fibres up to 120 km

.Short range modem for optical communicationto multiplexer up to 5 km.

.Built in modem for communication over 1wistedpair cable up to 4 km.

.Galvanic interface for connection to mul1iplexer.

.Direct intertrip function within the digital (:ommu-nication channel

.Communication channel supervision

November 1997Changed since October 1997Dala subjecI lo change without nolice

1MRK 506 006-BENPage 2

NaTE! The line differential function in protectiorl ofversion 1.1 and 1.2 are not compatible! The com-munication protocol differs!

REL 561 is a line protection terminal for HV andEHV transmission systems and a part of thePYRAMID system. The different parts of thePYRAMID system are available as stand aloneunits or as building blocks in a complete StationMonitoring System (SMS), Station Controi Sys-tem (SCS) and/or Relay Testing System (RTS).

Current differential protections require a comp~lri-son of the currents entering and leaving a pro-tected zone. A dependable communicationfacility is needed to allow information exchan!;Jebetween the relays at the line terminals.

Pilot wire schemes have been the most COIn-monly used differential protection of transmissionlines and feeders. To minimize the number ofmetallic circuits, summation principles were usedto produce a single-phase relaying signal fromthree-phase line currents. This however causeddifferent sensitivity for different fault types. Theprinciple is not suitable for single pole applic3.-tions and does not perform adequately for certaintypes of fault. Failure of operation for some inter-nal faults and maloperations for some extern alfaults can occur.

When dedicated pilot circuits are not availablt3,communication channels have to be used in pri-vately owned communication networks or rente,dfrom telecommunication companies. However,with the extensive use of electronic repeating andmultiplexing equipment in modern telecommuni-cation systems, direct signalling of power fre-quency signals is becoming less feasible. Thereis a need therefore for a new generation of cur-rent differential relays suitable for Ionger lineapplication and designed to follow the trends inthe telecommunication industry towards digitalcommunication.

The digital current differential relay, typ eREL 561, offers ph ase selective true differentialprotection for transmission and sub-transmissiol1lines. The relay is an all digital, multi- micropro-cessor based design for use with modern digit~llcommunication systems, also multiplexed amjroute switch. Since data can easily be mixed amjcarried within a digital message, all three phase

--current signals are transmitted over the samecommunication channel. Currents are comparedon a per phase basis, obviating the problem ofcurrent summation approach and providingphase selection information for single pole trip-ping.

Basic functionThe basic function in the REL 561 is a current dif-ferential protection of master/master type evaIu-ating each ph ase current separately at both ends,utilizing both the current amplitude and phaseangle (segregated vector comparison).

All currents are Fourier filtered in order to extractthe sine and cosine components. The six compo-nents, two per phase, are included in a messagethat is transmitted every 5 ms to the remote ter-minaiover a synchronous 56/64 kbitls data chan-nej. Also included in the message are informationfor supervision, CT saturation detection, synchro-nization of terminals, direct transfer trip etc.

The differential measurement is stabilized phaseby phase with the current scalar sum, see Fig.1.The degree of stabilization is settable.

To minimize the requirements on the currenttransformer all currents are individually super-vised by CT -saturation detectors. In cage of CT-saturation the degree of stabilization is increasedin the affected phase, see Fig.1.

The communication delay is continuously mea-sured and automatically compensated for in thedifferential measurement. This function enablesthe REL 561 to use communication network withautomatic route switching (public digital networksusually have this function).

The communication telegram is checked forerrors and at detection of erroneous informationthe telegram is excluded from the evaluation. Fortripping two or three out of four accepted tele-grams are required. This provides the neededsecurity against false tripping due to transmissiondisturbances.

The communication can be either dedicated optofibres or 56/64 kbitls multiplexed communicationlinks. With dedicated opto fibres of single-modetype, communication distances up to 120 km canbe covered.

ABB Network Partner 1 MAK 506 006-BENPage 3

REL 561 * 1.2

Line differential protection terminal

Idill

IMinop

IMinSat

Fig. 1 Stabilization characteristic

The connection to multiplexer can eithe r be gal-vanic «100 m distance) and with connectionaccording to CCITT or EIA standard or via a shortfibre optic link to an optical-to-electrical c;onverterwith connection according to CCITT standardG.703, codirectional, 64 kbitJs. A direct intertrip istransmitted between the terminals in the commontelegram. This intertrip is activated throu~Jh a sep-arate input and has a separate output.

The differential protection is designed for single

pole tripping.

A built in CT -supervision function provides bothan alarm signal arid block signal. The block sig-nal is intended for blocking of the line di1'ferentialfunction. The CT -supervision function is t,ased oncomparison between the zero sequencE' currentcalculated from the phase currents and a refer-ence current. The reference current is ta.,en fromthe zero sequence current from anoth9r core.This core can either be of measuring trarlsformertype or a relay type.

A high set instantaneous phase overcurrent func-tion is included. This function also trip:, singlepole. Moreover, a time delayed ph ase overcur-rent function is included. This function trips three

pole.Four independent groups of setting par;~metersare available within the REL 561. The user canchange an active group as weil as any parameterwithin them locally with the aid of the manmachine communication unit or by means of apersonal computer (PC). Change of active settinggroup is possible also by the activation of binary

inputs.Further more, each of the two local MMI possibili-ties can lake the functionality of measuring instru-ments like A-meter, V-meter, VAr-meter, V\I-meterand Hz-meter. Actual values of all binalY input

x

1 PHSELI Z2

R-

!::=::=::=:--t-=::::::::.:..

signals and internai logical signals are availabletoo. All binary inputs and outputs can be set to 1orO.

I

Optionat functionA full scheme three zone distance protectionfunction is available as back-up for the communi-cation channel and clearing of fault on the remotebusbar. The setling of reactive, resistive reach,ground return compensation and direction areindependent for each zone. The first zone is loadcompensated to minimize the overreach. Thezone 1 can also be time delayed.

Phase selector is available for single pole trip-

ping.

-ABB Network Partner 1 MRK 50G OOG..BEN

Page 4

REL 561 * 1.2

Line differential protection terminal

-The distance protection function is equipped withcommunication logic for blocking and permisE:ivescheme. The later scheme is equipped with faultcurrent reversallogic and weak end in-feed func-tion. The communication scheme uses anotherchannel then the differential protection function.

The zone1 and the communication aided trippingcan either be continuously in operation or acti-vated when the differential protection is lost clueto communication channel failure.

Fuse failure blocking is available as weil aspower swing blocking function.

Non-directional and directional ground fault cur-rent protection functions are available to dett~cthigh resistive ground faults with maximum sensi-

tivity.

Independent and dependent time delay with nor-mal, very, extremelyand logarithmic inverse tirnecharacteristic can be set. All functions can bemade directional. The trip can be second har-monic restrained to enable very low settings wilh-out risking unwanted tripping at transformer

energization.

The directional function is polarized with zerosequence voltage. The polarizing voltage is bandpass filtered to enable polarization at voltages aslow as 1 % also when a capacitive voltage trans-former is used.

The directional function iE. equipped with comm'u-nication logic for blocking and permissivescheme, the latter with current reversal and weakin-feed logic. The communication channel can tIededicated or common with the distance protel::-tion function.

The operation is stabalized against second har-monics. This allows settings for high sensitivil:ywithout unwanted tripping due to residual inrushcurrents in the transformer.

In the autoreclosing option, the single and/orthree-phase reclosing carl be selected from eight

programs.The three phase reclosing can be set to perforrnone to four reclosing shots. The first autoreclo-sure open time can be set as a high speed or

delayed autoreclosing.

The single phase autoreclosing can be set to per-form one or two reclosing shots dependent 011fault type.

For all types the reclaim time and duration of tht3closing pulse are settable.

The reclosing function can be equipped with syn-chrocheck function.

S~stem suRervision functions andstub RrotectionDifferent supervision functions that supervise aprotected power line, as weil as the near vicini~,are available as an option.

Their functionality is based on a measurement ofthe line current (overload protection) and differ.

-- -ence in the phase currents (broken conductorprotection). A loss-of-voltage function with its trip-ping logic is useful in systems with a built-in auto-matic restoration function.

The overload protection will ch ange to a stub pro-tection by energizing the corresponding binaryinput in REL 561. It can thus be effectively used

in switchyards with 11/2 circuit breaker configura-

tion when VTs are installed on the line side of thecircuit breakers.

On-line controi functionsOptionally built-in function block makes on-lineremote controi possible of up to ten binary sig-nals. In this way controi of isolators, circuit break-ers as weil as different built-in functions ispossible remotely via the SCS and SMS.

Programmable testing logicThe optional programmable testing logic makespossible for the user to program an appearanceand time sequence of different internai logicalsignals and in this way test the operation of differ-ent built-in logical functions.

Breaker failure ~rotectionOptional breaker failure protection is availablemeasuring the current through the line circuitbreaker. The current measuring principle is stabi-lized against the dc-transient that can causeunwanted operation at saturated current trans-formers.

The operating values of the three current mea-suring elements are settable within a wide range.The time measurement is individual for eachphase. Two independent timers are available, T1for a repeated tripping of the Clown" circuit breakerand T2 for the busbar trip.

Any of the REL 561 internai tripping functions canstart the breaker failure protection. The breakerfailure function can also be started phase byph ase externally.

Fault locatorA fault locator option provides the fault locationtogether with the information on the actual pri-mary and secondary phasors of the voltages andcurrents. The pre-fault and fault values of cur-rents and voltages are recorded together withtheir phase relations for the last three distur-bances.

The fault locator algorithm compensates theeffect of the load currents and apparent faultresistance.

Event recorderAn event recording function is available present-ing in a Iogicalorder, starting and tripping signalsthat have appeared during each of the last tenrecorded disturbances. Up to 150 time taggedevents for each of the last ten recorded distur-bances are stored. Time synchronization is possi-ble by means of external minute pulsesconnected to an binary input as weil as throughthe optionally built in communication ports forremote communication.

ABB Network Partner REL 561 * 1.2

Line differential protection terminal

REL 561 is using optical fibres to eliminate influ-ence of the electromagnetic interferences. Thisremote communication makes the REL 561 apart of a SMS and/or SCS system. The SMS andSCS systems enable the operator in a controicentre as weil as a relay engineer in the office toread information from the terminal and also tochange an active setting group as weil as differ-ent values of the setting parameters within the

setting groups.

The software program SMS-BASE with SM/REL 561 ,installed in a personal computer enables therelay engineer to communicate with the REL 561(through a telephone network), read informationfrom the relay on a PC screen and store it on PCfiles. Complete information on the last ten distur-bances is available as weil as 150 time taggedevents.

The operator in a controi room and/or controicentre has similar possibilities, when one com-munication port is connected to the SPA-buswithin the SCS system.

Collection of the disturbance record files is possi-ble remotely within the substation monitoring sys-tem (SMS) by using SMS-BASE. Evaluation ofthe disturbance records is possible by means ofthe REVAL PC based evaluator program.

Oisturbance recorderOptional disturbance recorder with high perfor-mances is one of the building blocks within theREL 561. It can memorize up to 10 analogue and48 binary signals (binary input signals Dr internaisignals) that are available within the terminal.Maximum recording time is 10 seconcls. Any ofthe recorded analogue and binary signals can beprogrammed to start a recording. All analogueand digital signals are programmable to start therecording at high or low values.

The time is provided by an internai CIOC,K that canbe externally synchronized. Pre-fault time, postfault time and limit time are settable in wide

ranges.

The disturbance recorder option can be selectedas a disturbance recorder with extended memory.

Collection of disturbance records is possiblelocally by means of a PC used for the IDcal manmachine communication as weil as remotelywithin the SMS. A disturbance evaluator, PCbased, program type REVAL that operates underMS Windows, is also available.

ORtionai remote serial communicationOne or two serial communication ports areoptionally available with the REL 561. They areinstalled independently on the back of theREL 561. The remote communication with a

Design The REL 561 line protection terminal is providedin a closed case having a common ABB look thatis 336 mm wide arid 6U (267 mm) high. J\ motherboard is mounted behind the front plate c,f the ter-minal. All modules are of a plug-in tl'pe andremovable. Screw connection terminals aremounted at the rear of the terminal for connec-tians to external circuits. Optional optical connec-torg of type SPA-ZC21 for communication withinSCS and SMS are located at the rear.

Optical or electrical connection for the differentialprotection function is located at the rear.

The basic configuration of a REL 561 consists ofthe following units:

-Transformer module with five voltage and fivecurrent inputs.

-NO converter module for 10 analogue signalssampied 2000 times/s.

o Central processing module performing all theREL 561 measuring functions.

-Power supply module with a regulated DC/DCconverter that supplying all static circuits. Thesupply unit also ,contains binary input Bind out-

put.-Man machine interface module, installed on

the front of the REL 561, serves as a localcommunication facility between the USE~r andthe equipment.

-The following hardware modules are availableoptionally to the basic version of REL E;61 :

-Up to three additional input/output modules.

-One or two serial communication interfacemodules of type SPA-ZC21 for connection ofREL 561 terminal to SCS and SMS system.

Basic versionThe measuring technique used in REL 561 pro-tection terminal is based on numerical methods.The measuring digital signal processors operatewith numerical signals derived from the analogueto digital converter.

The self supervision function operates continu-ously and includes:

-normal microprocessor watch-dog function

-checking of digitized measuring signals

-checksum verification of PROM contents

-checksum verification on all signal communi-cations

-Read-Write-Read-Write cycling of the memorycells and internai registers

Totally ten analogue input quantities are pro-cessed in the transformer module:

-the three phase currents

-residual current (310> in the protected line

-residual current (310> in the paralIeiline for

compensation of the fault locator measure-ment

-the three phase voltages

-open delta voltage in the protected line forpolarization of directional earth fault protection

-one phase voltage for synchrocheck reference

1 MRK 506 006-BENPage 6

-.

The analogue signals are low pass filtered beforethey are converted from analogue to numericalvalues. The numerical values are then tral'lS-ferred inta serial form and fed to the measuringprocessors by the aid of a separate digital siglnalprocessor.

The measurement in REL 561 is performed b~, anumber of digital signa~ processors (DSP) per-forming different measuring functions. The DSPsare connected to a serial data bus from the arla-logue to digital converter. Thus REL 561 is ofmultiprocessor design where the calculation 'forthe measurement is divided inta different DSPsfor different functions.

The optional functions are basically performed inoptional DSPs.

The results from the DSPs are coordinated in a32-bit micro processor thai also controls theCAN-bus communication with the binary I/Omodules.

The optical or galvanic port for the differentialprotection digital communication is performed ina separate communication module. Differentmodules are used for optical and galvanic corn-munication.

The power supply module has aregulated D(:;/DC converter thai provides stabilized auxiliaryvoltage to all static circuits within the REL 561.

The MMI module has a common ABB look and isinstalled on the front of REL 561. The MMI mocj-ule is used for the local communication with thepersonnel on site. The most important MMI func~-tians are:

-settings: Four groups of setting parametersare settable and readable in a self explanator(structured menu. Different parameters areseparately changeable within the different set-ting groups. Selection of an active settinggroup is also possible

-information handling: The most importantinformation on the last ten disturbancesincluding the time of disturbance, its durationtogether with starting and tripping signals arestored in REL 561 and available any timethrough the MMI unit. Information about theactualline current, voltage, active and reactiVE!power together with frequency is also avail-able

-the same is valid for the status of all importantinternallogical signals as weil as input andoutput signals. If the optional fault locator isincluded in the REL 561 , the information onthe distance to fault together with the phasorsof the prefault and fault currents and voltagesare available for the last ten disturbances asweil

-fault tracing: Faulty part in the REL 561 andthe differential protection communication,detected by the built-in continuous self super-vision, will be presentecl by Godes on the MMI

-testing: Test of functions and wiring duringcommissioning, and other types of testing, ispossible by setting any of the input and outputlogical signals to the logical value 1 or o. Com-plete signalling, tripping and logical circuitswithin the line bay can be tested in this way.

A PC can be connected through an optical con-nector on the front of the built-in MMI module. Bythis a disturbance free local communication withthe personal computer is achieved. The use of apersonal computer simplifies the communicationwith the AEL 561 and adds functionality, that dueto the lack of space is not available on the built-inMMI module:

-up to 150 time tagg ed events are available foreach of the last ten recorded disturbances

-disturbance records are available for collectionby a personal computer and a correspondingsoftware.

OptionsThe differential protection optical module in AEL561 can without any additional units communi-cate over dedicated fibres up to 30 km. Whengreater distances have to be covered the optionalFaX 20 system from ABB Netcom Ltd. is avail-able.The FaX 20 is used as a repeater for Ionger dis-tances than 30 km. The optical unit in AEL 561 isoptically connected to a FaX 20 unit that sendsthe signals on the dedicated fibres. With this con-figuration it is possible to cover distances up to120 km with single mode fibres.

The FaX 20 unit can als o operate as a multi-plexer in which cage a number of 64 kbit/s datachannels and a AS232 channel can be transmit-ted in paralIei with the differential communication.

The differential protection can directly galvani-cally (max. distance 100 m) be connected to amultiplexer. The build in interface can support theCCITT standard v.35/36 co-directional or contra-directional and X.21 64 kbit/s and EIA AS-5301422 co-directional or contra-directional 56 kbit/s.

The CCITT G.703 can be connected over anexternal converter V.35 contra-directional toG.703 that can be delivered on request.

When the distance between the differential pro-tection and the multiplexer is to great for a directgalvanic connection a short range optical modem21-15X is used. The distance can be up to 5 kmand the optical/galvanic converter 21-15X candirectly support the CCITT standard v.35/36 co-directional or contra-directional as weil as X.21and G.703.

The differential protection can with built inmodem communicate galvanically over twistedpair cable (max. distance 4 km).

Additional binary input/output unit can be added.All binary inputs are freely programmable to anyof the built-in functions including the event anddisturbance recording. Also the internally gener-

ABB Network Partner 1 MRK 506 DD6-BENPage 7

REL 561 * 1.2

Line differential protection terminal

ated binary signals in REL 561 are freely pro-grammable to the event and disturbance

recording function

Dedicated link, fibre optical connection

OptK:a1filres ~~::RELSxx --to the

other end

åher (~users l~

Multiplexed link, fibre optical connection

~ lolheI other end

totherusers

Multiplexed link, galvanic connection

Dedicated link, shol1 range galvanic modem

~~

~[ V.36 (V.35)X.21G.703

SMS and SCS communicationOne or two serial interface modules of type SPA-ZC21 for remote communication enables theREL 561 terminal to be a part in an SCS and/orSMS system. These modules are optional andlocated at the rear of REL 561.

Two opticalloops can be built up, one independ-ent of another, each of them with different com-petencies regarding monitoring and setling thefunctions in REL 561 terminal. Plastic fibres canbe used up to a length of 30 meters. Glass fibrescan be used up a length of 500 meters.

An opticalloop can be used for remote communi-cation within the substation controi system SCS200. The loop is normally closed within the bayand/or connected to a bay computer. Thisenables communication with the REL 561through the station bus from the operator's workplace and also from a controi centre.

The second optical communication loop can be,for example, built up on station level. It caninclude different numerical relays of the PYRA-MID range with remote communication possibili-ties. The optical loop is closed by an opto/electrical converter with a RS 232-C connectoron its output. Connection to a personal computercan then be performed directly (if the computer islocated in the substation) or by a telephonemodem through a telephone network with CCITTcharacteristics. Instead of the opticalloop, a starconnection can be used. In this case a portexpander is necessary as a gateway from the dif-ferent protection terminals to the PC (telephonemodem).

Remote communication with REL 561 enablesoperation in the same way as when operating itlocally by means of the local MMI. The followingadditional functions or limitations are present withthe remote communication facilities:

-up to 150 time tagg ed events for each of thelast ten disturbances stored in the REL 561memory with 1 ms resolution can be pre-sented locally or remotely within the SMS sys-tem.

-the REL 561 internai clock can be synchro-nized with a station clock and other equipmentin the station either through the SCS opticalcommunication loop or through the input forminute pulses.

-selection of access levels to monitoring andsetling possibilities within the REL 561 is on lypossible through the local MMI.

Multiplexed link, short range fibre optical connection

Fig.2 Communication alternative

J\BB Network Partner 1 MAK 506 006..BENPage B

REL 561 * 1.2

Line differential protection terminal

T,echnical data

Table 1: Energizing quantities, rated values an,:! limits

Rated value-l

ir = 1 or 5 P.

(0,2-4) x Ir I~ont.

.Nominal range1

(0,2-30) x Ir(0,2-15) x Ir for line differential!

function

Quantity--Current

Operative range

Burden

Ac voltage Ph-Ph

Operative range

1(80-120) % of U1

Burden

Frequency

(O,2-100) x Ir for 1 s I~~~;

t I r

IUr= 100/110/11S/120V1 ,S x Ur corlt.2,S x Ur for 1 s

1< 0,2 VA at Ur

If r = SO/60 HzI.

Ur = (48/60) V

Ur= (110/12S) VI Ur = (220/25-0) V

Auxiliary dc voltage EL

power consumptionbasic terminaleach I/O-boardComm boardeach output relay

<14W-~1W~2WI~O.1

W

Binary input circuitsdc voltage AL Ur = (24/30) V

Ur = (48/60) V

IUr= (110/12!5) VUr = (220/250) V

power consumptionUr = (24/30)VUr = (48/60)VUr = (110/125)VUr = (220/250)V

max. 0,05 Wlinput\ max, 0,1 W/input

max. 0,2 W/input

max. 0,4 W/inputI

Ambient temperature 120°C

'max. 2 %

,(10-90) %

I-so c to +sso C

max. 12 %I

(~O-90) %

Ripple in dc auxiliary voltage

Relative humidity

*) max. 350 A for 1 s when COMBIFLEX test switch included together with the product

Table 2: Influencing factors, Permissible influencl~

~

:1:20%

~20%1:1:20%

:t: 20 o/c.:t: 20 o/G

:t: 20 %:t: 20 %

Table 3: Electromagnetic compatibility tests

L' --IT~pet~~'2,5 kV

2,51<V

I

Reference standardsI

IEC 255-22-1, Glass IIIlEG 255-22-1, Glass III

Test--1 MHz burst disturbance

For short range galvanic modemFor galvanic interface *)

-differential mode-common mode

11 kIl

10,5 kV

~

I Glass II

Glass II

IIEG 255-22-2, Glass IIIlEG 255-22-2, Glass III

-Electrostatic discharge

For short range galvanic modemFor galvanic interface O)

Fast transient disturbance 14 kV IIEC 255-22-4, Class IVFor short range galvanic modem A kV IEC 255-22-4, Class IVFor galvanic interface oJ kV Class II, level2

L Radiated electromagnetic field distur- 10 "'m, (25:1000) MHz -IEC 255-22-3, Class IIIbance Draft IEEE/ANSI C37.90.2

*) Applicable for the differential communication modul e and FOX6Plus only, for the following standards:-V.36N11 Co-directional according to C':ITT-V.36N11 Contra-directional according to CCITT-X21/X27 according to CCITT-RS530/RS422 Co-directional accordin~1 to EIA-RS 530/RS422 Contra-directional according to EIA-G.703 according to CCITT

II

Table 4: Insulatiorl tests (reference standard: IEC 255-5)

Test TypE! test values

Dielectric test 2,0 kV ac, 1 minFor short range galvanic modem 2,5 kV ac, 1 minFor galvanic interface *J 1,0 kV ac, 1 min

Impulse voltage te.stFor short range galvanic modem 5 kV, 1,2/50 ILS, 0,5 JFor galvanic interface *J 1 kV, 1,2/50 ILS, 0,5 J

For other circuits 5 kV, 1,2/50 ILS, 0,5 J-

Insulation resistance >100 MQ at 500 V dc"-*j Applicable for the differential communlcation moduie and FOX6Plus only, see comments under table 3.

Table 5: Mechanical tests

J\BB Network Partner 1 MRK 50G OOG..BENPage 10

REL 561 * 1.2

Line differential protection terminal

Table 6: Contact data (rE!ference standard: IEC :~55)

~u~ction or ~antityMax system voltage

!Trlp

and Signal relays

250 V ac, dc

1000 V rlnS

l Fast signal relaysI

250 V ac, dc

800VdcTest voltage across open contact,1 min--~

Current carrying capacitycontinuous1 s

8A10 A

8A

10 A

Making capacity at inductive loadwith UR>10 ms

0,2 s1,0 s

--Breaking capacity for aG, 1:08 <p>O,4

30A10 A

~

1250 V/S,O A14SV/1A -

110 V/0,4 A220 V/0,2 A1250 V/O, 15 J~

Breaking capacity for dcwith UR<40 ms

k.,.m"m ~apacitive lo;;d

0,4 A

O,4A

1250 V/B,O AI~~_V!~._A.

-110 V/O,4 A220 V/O,2 A\250V/O,15

A

110nF

Table 7: Additional General Data

Weight approx.

Dimensionswldth

helghtdepth

Storage temperature

111

kg

336 mm267 mm

1245 mm

1-400 C to + 7(fC

Table 8: Mean values

Function

Frequency

Voltage

Current

Active powerReactive power

Nominal range

(0,95-1,05) x fr

(O,1-1,5)xUr

(0,2-4) x Ir

at Icos <pI ~ 0,9at Icos Ipl S 0,8

Table 9: Event recording

r-Function

Time tagging resolutionEvent buffering capacity

Max. number of events/disturbance reportMax. number of disturbance reports

Time tagging error with synl:hronisation once/1sTime tagging error with synchronisation once/10sTime tagging error with synchronisation once/60s

(minute pulse synchronisation)Time tagging error without synchronisation

Table 10: Remote serial communicationt~ junction i -

Protocol-

~====~

Value

1300,

1200, 2400, 4800 or 9600 bit/sCommunication söpeed

I Connectors and optical fibres

~

Table 11: Disturbance recorder

Function 5etting range0-48

0-102kHz

(5-250) Hz

Number of binary signals

Number of analogue signals

Sampling rate

Recording bandwidth

(0.5000) % of Irin steps of 1 %

I (O -200) % of Ir in steps of 1 %---

(O -200) % of Ur/va in steps of 1 % at 100 V seG

~

I ~~~~~~~~~~~~~~~~~-Undercurrent triggering

Overvoltage triggering

Undervoltage triggering

Pre-fault time

Post fault time

Limit time

Number of recorde!d disturbances

-

(O -110) % of UrI -.13 in steps of 1 %

1(50 -300) ms in steps of 10 ms

1(100 -3000) ms in steps of 100 ms,

(500 -4000) ms In steps of 100 ms,

Max 10 dlsturbances

ValueFunction

Voltage channels

dynamic rangeresolution

1(0,01-2.0) x Ur'-.J3at 100 V sec0,1 % of Ur'-I3

Current channels

dynamic rangewithout dc offsetwith full dc offset

resolution

[ <0,01-110) x Ir(0,01-60) x Ir0,5 % of Ir

Total recording time with 10 analogue and 4;3 binarysignals} recorded

typical15 smaximum 40 s with extended memory

I

Built-in calendar I for 30 years with leap years

*) The amount of harmonics can affect the maximum storage time

Table 13: Phase selection

Ivalue l

I(0,1 -150) il in steps of 0,01 il(,0,1 -1200) il in steps of 0,01 il

(0,1 -150) .o. in steps of 0,01 .o.(0,1 -150).0. in steps of 0,01 .o.

Functlon

Impedance setting range at Ir = 1 A

reactive reachpositive seq. reactance X1zero seq. reactance Xc

resistive reachfor phase-phase faultsfor phase-earth-faults.

*) Voltage check function and correspondin!J setting is common for the following functions:-weak end infeed trip and echo-automatic switch-onto-fault logic-loss of voltage with in the power system supervision function

-undervoltage protection

--=====~=1

I

Setting ral1ge

1(20-300) % of Ir in steps of 1 %I (0-60) s in steps of 1 s

Table 17: System supervision functlons and stub protection

FunctionStub protection I> "")

Power system supervisionoverload I> "I

time delaybroken conductor

min. ph ase current Ibomin. unsymmetrytime delay

loss of voltage function I

time delay

1

10 % of Ir20 % of mal<. phase current(O-50) s in s1ep of 1 s(20-80) % of Ur/-.J3 in steps of 1 %Is

*) Voltage check function and corresponding setting is common for the following functions:-weak end infeed trip and echo-automatic switch-onto-fault logic-loss of voltage function

-undervoltage protection

") Current check function and corresponding settirlg is common for the following functions:-stub protection-overload I >

Table 18: Fuse failure su~lervision function

~I

Setting ran~le.

Zero sequence quantities:

operating voltage 3Uooperating current 310

(10 -50)% 01! Url-.J3 in steps of 1%,(10-50)% 01: Irin steps of 1 %

Table 19: CT supervision

Functlon Settlng range__- I

Operating current I> (5 -100)% of Ir in steps of 1% I

,..,..,Galvanic interface---Interface typa

Connector type

Table 21: Communlcatlon for differential protectlon

Connection

V.36N11 Co-directional Accordlng to CCITTV.36N11 Contra-directional According to CCITTX.~!1/X27 According to CCITTRS;530/RS422 Co-directional According to EIARS530/RS422 Contra-directional According to EIAG.7O3 According to CCITT

D-sub 15 or 25 pins (G.703 screw)

Short range galvanic modem

RangeLine interfaceConnectorIsolation

ma): 4 kmBalanced symmetrical three-state current loop

S-pin divisible connector with screew connectionGalvanic isolation through optocouplers and isolating DC/DC-com/erter

.-'I I

~

Optical interfaceTerminal dedicated fibreTerminal- FOX 6 PLUS (G.703)

Type of fibre

Optical connector Type, FC e.g. Diamond HFC-13

Wave lengthOptical transmitter

injected powerOptical receiver

sensitivityTransmission distance

1

1300 nmLED-16c1BmPIN c11ode-40 d!Bm

max 20 km

Transmission distanceOptical fibreOptical connectors

Optical budget

Table 22: Fault loci~tor

ABB Network Partner1 MRK 506 006.oBENPage 16

REL 561 * 1.2

Line differential protection terminal

ABB Network Partner1 MRK 50G OOG-BENPage 17

REL 561 * 1.2

Line differential protection terminal

~~

Table 27: Non-directional earth-fault overcurrent protectlon

Function Se1.1ing range

Basic current for inverse time delay

310 (5-300) % of Ir in steps of 1%

(0-6,0) s in steps of 0,01 s

1:1:

0.5 %:1: 10 ms

--~

~-::--=-i

-,~---"

lEG 255-3 class 7,5 :t 60 ms

lEG 255-3 class 7,5:t 60 ms-I

r -

1\ = (0,05-1,1) in steps of 0,01 lEG 255-3 class 5:!: 60 ms

'"

= (0,05-1,1) in steps of 0,01

Extremely inverse characteristic-

Logarithmic characteristic/t = 5, 8-1, 35 x In3TO

J( = (0,05-1,1) in steps of 0,01-

1

:t5%Oftat I = (1,3-29) x 310

(0,05-6,0) s in steps of 0,01 stMin for dependent characteristic--Min. operate current for dependentcharacteristic IMirl

Operating time

Resetting time

1(100-400) % of 310 in steps of 1 % 1--

3

Valule

Table 29: Breaker failur.~ protection

I

F .unctlon-I

Settlng range~1MöO)%

of Ir in steps of 1 %Operating current(one measuring element per phase)

Retrip time delay t1

I(O-15o)msins~epsof1

ms

Back-up lrip lime delar 12 (50-400) mi) in steps of 1 ms

ValueE~~~max 10 ms

Trip operate time

Operate time for current detection

ABB Network Partner 1 MRK 506 0O6-BENPage 19

REL 561 * 1.2

Line differential protection term inal

OrderingThe basic version of REL 561 is a phase segregated line distance protection terminal for single phase tripping.System supervision functions, event recorder, independent time overcurrent and high set instantaneous over-

current protection ,are also included in the basic version.

Quantity: I I1 MAK 000 496-AAOrdering Number:

Basic data:

Frequency, frAc voltage, Ur

Dc voltage, EL

50/60 Hz

100/110/115/120 V

48/60/11 0/125/220/~!50 V

Basic data to specify:

Aated current, Ir D 1A D 5A

Interface dc voltage, AL 1 D 24/30 V D 48/60 V D 110/125 V D 220/250 V

Communication modul e alternatives:(One and on ly one altemative has to be sele(~ted. Optical fibre or electrical wire is not included.)

V.35/36 co-(jirectional galvanic interface D 1 MRK 000 185-AA

V.35/36 contra-directional galvanic inlerface D 1MAK 000 185-BA

X.21 galvanic interface D 1 MRK 000 185-CA

RS 530/422 co-directional galvanic interface D 1 MRK 000 185-DA

AS 530/422 contra-directional galvanic interface D 1MAK 000 185-EA

Fibre optical modem D 1MAK 000 195-AA

Short range galvanic modem D 1 MRK 001 370-AA

Short range libre optical modem D 1 MRK 001 370-BA

Options:Binary I/O extension modules, each with binalY 8 inputs and 12 signalling output relays.

Totally 3 I/O modules can be selected.Quantity (specify interface dc voltage RL2 below) 1 O 2 O 3 O

Interface dc voltage, RL2:D 24/30 V O 48/60 V O 110/125 V O 220/250 V1MRK 000 173-GA 1MRK 000 173-AB 1MRK 000 173-BB 1MRK 000 173-CB

Distance back-up function with phase selection and communication logic+ current Rev. + WEI O 1 MRK 000 271-AA

Fuse failure supervision (zero sequence) O 1MRK 000 273-AB

Power swing blocking O 1MRK 000 274-AA

Autorecloser, single- i3.nd/or three-phase O 1 MRK 000 276-AA

Synchrocheck O 1 MRK 000 283-AA

Breaker failure protection O 1 MRK 000 277-AA

Earth-fault overcurrerlt protection (only one altt3rnative can be selected):

Non-directionalDirectional comparison or non-directional

Fault locatorDisturbance recorder (only ona alternative can be selected):

Disturbance r,ecorder

Disturbance recorder with extended mt3mory

On-line controi function (10 signals)

Simulation logic

Remote communication (SMS/SCS)

o 1 MAK 000 278-AA

O 1MAK 000 279-AA

O 1 MAK 000 280-AA

D 1MRK 000 281-AA

D 1MRK 001 378-AA

D 1MRK 000 272-AA

D 1MRK 000 275-AA

D 1MRK 000 282-AA

-

1 MRK 506 006-BENPage 20

ABB Network Partner REL 561 * 1.2

Line differential protection terminal

Bus connection unit for remote communication, type SPA-ZC21 (one for each port if used)

Transmitter Receiver Quantity:

Plastic

Plastic

Glass

Glass

10101010

20202020

Plastic

Glass

Plastic

Glass

1 MAK 000 194-AA

1 MAK 000 194-BA

1MAK 000 194-CA

1 MAK 000 194-DA

COMBITEST test switch module RTXP 24 mounted withthe terminal in RHGS6 case with window door

D Internai earthing D Externa! earthing

On/Off switch for the dc-supply

D 1MRK 000 371-CA

D RK795 017-AA

D 1 MAK 000 020-BA

D 1 MAK 000 020-DA

D 1MAK 000 020-Y

D 1MKC 980 001-2

D 1 MAK 000 020-B8

D 1 MKC 980 001-2

D

Mounting details with IP40 degree of protection from the front:

19" rack

Wall mounting

Flush mountingadditional for IP54 (protection terminal only)

Semi-flush mountingaddition al for IP54 (protection terminal only)

No mounting details

1MRK 506 006-UEN

1MKC 950 001-1Quantity: [=:JQuantity: I I

Ouantity: [=:J 1 MAK 001 295-AA

1MAK 001 295-CA

1 MAK 001 295-DA

AS 881 007-AA

Quantity: I IQuantity: I I

Quantity: ~

Quantity: ~Quantity: [~Quantity: ~Quantity: ~Quantity: I J

1MRK 000 314-08

1MRK 000077-08

1MRK 000 078-AA

1MRK 000 876-KA

1 MRK 000 876-EA

Accessories:User's Guide for REL 561 * 1.2

Front connection cable for PC (Opto/9-pol D-sub)

Fibre optic repeater and multiplexer (FOX 20)available from ABB Netcom

Fibre optic and G 703 converter (FOX 6 PLUS)

V36 to G 703 converter *)

Optical/electric converter for short range optical modern

(dc-supply 48-110 V)

V.35N.36

X.21/G.703SMS-BASE, version 2.0, Basic program for SMS and PC front

connectionSM/REL 561 SMS program module for REL 561 * 1.2

RECOM Disturbance collectio,n program, version 1.3

REVAL Disturbance evaluation program, english version

CAP 531 -Graphical configuration toolCAP/REL 561, CAP program module for REL 561 * 1.21)

1) SMS-BASE and SM/REL 561 is required

For our reference and statistics we would be pleased if we are provided with the following application data:

End user:Country:

kVVoltage level:Station name:

ABB New/ork Partner 1 MRK 506 0O6-BENPage 21

REL 561 * 1.2

Line different:ial protection terminal

References Series RE 500Mechanical desi!~n and mounting acce:,soriesUser's Guide REL 561 * 1.2

Reference List REL 561

SPA-lC 21

SMS 010

CAP 531

1MRK 514 003-BEN

1 MRK 506 006-UEN

1 MRK 506 006-REN

34 SPACOM 22 EN1 A

1MRK511014-BEN

1MRK 511 034-BEN