REL 501 * 1 - ABB Group · -local acceleration and 10ss-of-load logic-disturbance recorder with a...

REL 501 * 1.2

Line distance protection terminal1MRKISO6 0O1-BEN

ABB Network Partner

(SE950207)

Features .The basic version of RE 501 includes:

-five distance protection ones for multiphasefaults with individual se ing of the directional-ity and reach in both re ctive and resistivedirection

-separate and independ nt impedance mea-suring elements for the eneral Fault Criteria(GFC) with advanced c aracteristics

-time delayed overcurre t back-up protection

-switch-onto-fault protec jon facilities

-three-phase tripping-presentation of the me ured mean values of

a line current, voltage, ctive power, reactivepower and frequency to ether with the actualstatuses of all input and internai binary signals

-extensive configuration ossibilities by use ofbuilt in logical gates, ti rs and user config-urable connections be een different func-tions, binary inputs and inary outputs

.Simultaneous measurement of the differentphase-phase loop impedances within thenumerical measuring elements that are individ-ual for each type of fault and each distancezone, ensures fast and reliable fault detection

.The typical operating time of the impedancemeasuring function is 32 ms

.The multiprocessor-based design guaranteeshigh availability together with excellent possibili-ties of extensive combination of differentoptional functions

.Numerical filtering and measuring techniqueensures a correct performance during differenttransients

.Versatile local man machine communication(MMC) from the relay front panel, together withthe two optionally built-in serial ports, bringsREL 501 close to the user, whether he belocated in a substation, controi centre, or office

.Extensive self supervision with fault diagnosticspresented on an MM I unit

~November 199Changed since ctober 1997Data subject lo ange wilhout nolice

ABB Network Partner 1 MR~ 506 001-BEN I

REL 501 * 1.2

Line distance protection terminal

-directional or non-directional h-fault over-current protection

-sensitive earth-fault protectio for isolated orhigh impedance earthed netw rks

-4-step earth fault overcurrent rotection

-time delayed under and overv Itage protection

-accurate fault locator based o weil proven

measuring algorithms-detailed disturbance reporting or the last ten

disturbances with up to 150 ti e-taggedevents for each reported distu ance.

-on-line controi functions

-simulation logic

.The following functions are available optionally,independent of each other:

-up to two I/O printed circuit boards, each witheight binary inputs and twelve output relaycontacts

-local acceleration and 10ss-of-load logic

-disturbance recorder with a recording time ofat least 10 s

-fuse failure supervision function

-three-phase autoreclosing-synchrocheck and energizing check function

-supervision of the protected power line

Application

Fig. Operating characteristic 1 the distance

protection function

The REL 501 line protection terminal representsthe basic unit of the distribution and sub-trans-mission line protection terminals that form a partof the PYRAMID system. The PYRAMID systemincludes a complete range of the complex objectterminals, a functional station monitoring, and astation controi system. The blocks in PYRAMIDare available as stand-alone protection units, oras building blocks in a complete Station Monitor-ing System (SMS), Station Controi System (SCS)and/or Relay Testing System (RTS).

Basic functionsThe basic protection function in REL 501 is aphase-to-phase and three-phase distance pro-tection with individual measuring elements for thedifferent types of faults that belong to the variousimpedance zones. The terminal includes basi-cally five impedance measuring zones with pro-

grammable directionality.The independent measuring elements provide ageneral fault criteria (GFC). For their operationthey use other combinations of measuring quanti-ties than the zone measuring elements. Thus,REL 501 fulfils all the requirements for two differ-ent measuring criteria in a single relay point.

The operating characteristic of the GFC measur-ing elements is advanced, as presented in Fig. 1.The settings of the reactive reaches in forwardand reverse direction are independent of oneanother. The same independence exists betweenthe reach in resistive direction for covering thefaults with the higher fault resistance and thereach limitation for a safety lo ad impedance area.The parameters of the safety load impedancearea are settable in a wide range as weil.

The quadrilateral characteristic o each imped-anGe zone with an individual an independentsetting of the reach in reactive and resistivedirection ensures an optimized ap lication for allline lengths on single lines as w II as on lineswithin the complex network confi urations. Thequadrilateral characteristic ensur a maximumresistive coverage for all faults a d a maximumlimitation of load influence.

The time delayed overcurrent pr ection servesas a back-up protection to the im edance mea-suring functions. It can be active ntinuously oronly in cases of broken fuses n the circuitsbetween the voltage instrument tra sformers anda protection terminal. REL 501 ovides three-

phase tripping.

A built-in switch-onto-fault tun jon providesinstantaneous three-phase trippin for the wholeline section if a circuit breaker acci entally closeson to a fault. The function operate in a conven-tionai way (by means of an extern I binary signalfrom a CB controi switch), or by a tivation of the

optionallogic.

-

REL 501 * 1.2


Four independent groups of setting parametersare available within the REL 501. The user canch ange an active group as weil as differentparameters within any of them locally by the aidof the user-friendly man machine communicationunit, or by means of a personal computer (PG). Itis also possible to change an active setting groupby activating one of the four programmable

binary inputs.

Gonnections between different functional inputsand outputs, binary inputs and binary outputs areuser configurable. The user can configure allbuilt-in functions according to his needs. A highnumber of different logical gates and timers withindividual settable time delays extends addition-ally the total flexibility of terminals.

The MMI serves as an information unit, present-ing in a Iogicalorder the starting and tripping sig-nals that have appeared during each of the lastten recorded disturbances.

Furthermore, each of the two local MMG possibil-ities takes over the functionality of the measuringinstruments such as the A-meter, V-meter, VAr-meter, W-meter and Hz-meter. Directional testsduring commissioning become a routine by usingthe REL 501 and its man machine communica-tion possibilities.

Optional functionsLocal acceleration logicREL 501 has a built-in, user-programmable logicthat enables accelerated operation of the dis-tance protection together with the autoreclosingfunction. The so called "loss-of-load" function isalso included.

Fuse failure su~ervision function and GT -suDervi-sion functionThe GT -supervision function is based on compar-ison between the zero sequence current calcu-lated from the phase currents and a referencecurrent. The reference current is taken from thezero sequence current from another core. Thiscore can either be of measuring transformer typeor a relay transformer type. The GT -supervisionfunction provides an alarm signal as an output.

The operation of the built-in fuse failure supervi-sion function is based on the detection of a zero-sequence voltage without the presence of a zero-sequence current. The selection of operation,based on the presence of a negative sequencevoltage without the negative sequence current ismade possible by the settings.

Automatic switch-onto-fault logicAs an option, REL 501 has a built-in logic thatdetermines the dead line conditions necessaryfor the operation of the switch-onto-fault function.This logic can replace the auxiliary contact of thecircuit breaker controi switch and the correspond-

ing wiring.

-~~--

-f t v rc r tiComplementary earth-f ult overcurrent non-directional or directional rotection functions areavailable optionally.

80th versions have selec able time delay charac-teristics, four of them cur nt-dependent, and oneindependent. The curre -dependent time char-acteristics also include t e possibility of settingthe minimum operating c rrent and time.

The operation is stabiliz d against second har-monics. This allows sett gs for high sensitivitywithout unwanted trippin due to residual inrushcurrents in the transform .

In isolated or high imped nce earth ed networkstwo types of sensitive e rth-fault protection areavailable as a compleme t to the distance pro-tection function. 80th of t em have conventionaimeasuring elements, inst lied in additional hard-ware units. All the corres onding logical signalsare incorporated inta the nternal REL 501 logic.The available optional me suring units are:

-RXPF 4, operating on t e Icos<p measuringprinciple

-RXPG 4, operating on ischer)

measuring principle.4- te a h f ult ove o c'oIn addition an optional 4- tep earth fault protec-tio n is available. The 4-ste earth fault protectionis intended for solidly e rthed systems wherethere is a need for selec vity both for low andhigh zero sequence curren s.The 4-step earth fault prat ction have three stepswith definite time function nd one step with com-bined definite and inverse me function.

;

The 4-step earth fault pro tian measures zerosequence current (310) an zero sequence volt-age (3UO). The directional function has an char-acteristic angle of 65 d grees i.e. maximumsensitivity is achieved wh n the zero sequencecurrent follows the polariz d voltage (-3UO) by65 degrees. All four step can be made direc-tional or non-directional.

In order to avoid influenc s on the directionalmeasurement by harmoni in the voltage the 4-step earth fault protection is equipped with anharmonic filter. The invers -time function step isalways blocked if the seco d harmonic exceedsthe set value (20 or 32% f the zero sequencecurrent). The definite time functions can be setindividually with or witho t second harmonic

blocking.

EventrecorderUp to 150 time-tagged eve ts for each of the lastten recorded disturbances are available to theuser. Time synchronization s possible by meansof the minute pulses wired to a separate binaryinput as weil as via the opti nally built-in commu-nication ports for remote co munication.

mRk 506 0O1-BEN'1

ABB Network Partner REL 501 * 1.2


Disturbance recorderThe disturbance recording function is an impor-tant part of a station monitoring system, whichenables the evaluation of different events withinthe power system.

The optional disturbance recorder with a highperformance is one of the building blocks withinthe REL 501. It can memorize up to 10 ana-logue and 48 binary signals (input binary signalsor internai signals) that are available within theterminal. The minimum total recording time is 10seconds.

Any of the recorded analogue and binary signalsis programmable to start arecording. Further-more, analogue signals are programmable tooverfunctions and underfunctions, and binary sig-nals can start recording with a transition from alogical O to a logical 1 and vice versa.

The time base is synchronized with an internaiclock and via the synchronizing facilities furtheron to the system. Pre-fault time, post-fault timeand limit time are settable in wide ranges.

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

The collection of disturbance records is possiblelocally by means of a PC used for local manmachine communication, as weil as remotelywithin the SMS. The disturbance evaluating PC-based program type REVAL, operating in MSWindows, is also available.

AutoreclosingAs an option, three-phase multi-shot autoreclos-ing is available.The reclosing function can be set to perform 1, 2,3 or 4 three-phase reclosing shots. The firstautoreclosure open time can be set as a high-speed or delayed autoreclosing.

S~nchronism and energizing check functionThe built-in synchronism check function has allthe characteristic operating parameters settablein wide ranges. The energizing check functionmakes possible energizing of dead line as weil asenergizing of dead busbar or energizing in bothdirections.

S~stem su~ervision functionsDifferent functions that supervise the protectedpower line as weil as the vicinity of the REL 501are available as an option within the system'ssupervision functions.

Their functionality is based on a measurement ofthe line current (overload protection) and the dif-ference in the phase currents (broken conductorprotection). A loss-of-voltage function with its trip-ping logic is useful in the systems with a built-inautomatic restoration function.

Under/Overvoltage ~rotectionOptional voltage measuring functions are avail-able in the REL 511 terminals. Operating valuesof the overvoltage and undervoltage measuringelements are settable in wide ranges, indepen-dent one of another. Each of them has built in

and independent time delayed lement with wide

setting range.

Fault locatorAn optional fault locator is an sentiaI comple-ment to the distance protectio , since it mea-sures distance to the fault with g eat accuracy.

The option provides a fault loca on together withthe information on the actual .mary and sec-ondary phasors of the voltages nd currents in arelay point. The pre-fault and fa It values of cur-rents and voltages in a relay point, recordedtogether with their phase relatio for the last tenrecorded disturbances, are also vailable.

A calculation algorithm compens tes the effect ofthe load currents and the app rent fault resis-tance.

On-line controi functionsOptionally built-in function block makes possibleon line remote controi of up to te binary signals.On this way the on line contr I of the circuitbreakers as weil as different bui in functions ispossible remotely via the SCS an SMS.

Simulation logicThe optional simulation logic m kas possible tothe user to program an appea ance and timesequence of different internai log caj signals andon this way test the operation of ifferent built-indisturbance reporting functions, event handlingwith in the SMS and SCS and ex rcise the signalflow within the substation.

Optional input/output facilitiesThe basic version of REL 501 omprises fourbinary inputs and five output reta contacts. Oneof them is anormally closed cont ct used for thesignalization of a continuous elf-supervisionfunction.

One or two additionai printed circ it boards, eachof them comprising eight binary in uts and twelveoutput relay contacts, are availabl as an option.All the binary inputs are freely pr grammable toany of the built-in functions so a to assure the

greatest possible flexibility.

All the output relays are freely pr grammable toany of the internallogical signals.

Optional remote serial commun cationOptionally, the corresponding so are and onaor two serial communication port are availablewith the REL 501. They are install d independentof each other on the back plane f the terminal.Remote communication with RE 501 uses theoptical fibres to eliminate the in luence of theelectromagnetic interferences. Th s enables theREL 501 to be a part of the SMS nd/or the SCSat the same time.

The software program SMS-BASE .SM/REL 501,installed in a personal compute, enables therelay engineer to establish com unication withthe REL 501 (either direct co unication orcommunication through a telep ne network) ,read information from the relay o a PC screen,and store it in PC files.

ABB Network Partner 1MRK 506 001-BEN

REL 501 "1.2Line distance protection terminal

The operator in the controi room and/or controicentre has similar possibilities when one commu-nication port is connected to the SCS. Communi-cation within the SCS enables timesynchronization of the REL 501 with other equip-ment in the substation. Similar functionality isalso possible when it is connected to the SMS

only.

The remote collection of disturbance records ispossible within the stati n monitoring system(SMS) by using the SMS- ASE and RECOM. Anevaluation of the disturb ce records is feasibleby means of the REVA evaluating PC-based

program.

Design The following hardware units are available

optionally:

-one or two input/output nits, each of themconsisting of eight bina inputs and twelverelay output contacts.

-one or two serial interfa e units of typeSPA ZC 21, intended fo remote communica-tion purposes.

-sensitive earth-fault pro ection for isolated orhigh impedance earth e networks.

Basic versionThe measuring technique used in the REL 501protection terminal is bas d on pure numericalmethods. The measuring gnal processors oper-ate with numerical signals derived from the ana-logue-to-digital converter ( ee Fig. 2).

The self-supervision fun on operates continu-ously and includes:

-normal microprocessor atchdog function

-checking of digitized m uring signals

-checksum verification o PROM contents

-checksum verification of all types of signalcommunication

-Read-write-read-write c cling of the memorycells and internai regist s

---

The REL 501 line protection terminal is suppliedin a closed case of common ABB look, which is9,5" wide and 6U (10") high. A motherboard ismounted under the front cover of the terminal. Allother units are of plug-in type and thus easilyremovable. Screw connection terminals,mounted on the back plane of the terminal, servefor the electrical connections to the external cir-cuits. Optional optical connectors of type SPA-ZC 21 that serve for remote communication pur-poses within the SCS and SMS are located onthe back plane too.

The basic configuration of REL 501 consists ofthe following units:

-Transformer unit with five voltage and five cur-rent input transformers

-NO conversion unit for ten analogue signals,operating with a sampling frequency of2000 Hz

-Multiprocessor-based central processing unitthat performs all the REL 501 measuring func-tions

-Power supply unit, which comprises a regu-lated dc/dc converter that provides stabilizedauxiliary voltage to all static circuits. Fourbinary input circuits together with the five out-put relays are installed in the same unit.

-Man machine interface unit is installed on thefront plane of REL 501 and serves as a localcommunication facility between the user andthe equipment

ABB Network Partner 1MR~ 506 0O1-BEN I

REL 501 * 1.2


lI

I

L REL 501 basic block diagram

Fig.2

Transformer unitTotally ten analogue input quantities are pro-cessed in a transformer unit:

-three currents as phase currents of a pro-tected line

-residual current (310) of a protected line

(optional earth-fault overcurrent protection)

-three-phase-to-earth voltages of a protectedline

-open delta voltage of a protected line (for anoptional directional earth-fault protection func-tian, when used)

-one phase current and one ph ase voltage forrecording purposes when the optional distur-banGe recorder included.

NO conversion unitAnti-aliasing low pass analogue filters filter theanalogue signals before they enter the multi-plexer and an analogue-to-digital converter. Aseparate signal processor in an NO conversionunit performs digital low-pass filtering. The totalbandwidth of the filtered signals will then be suit-able for protection purposes.

The information is then converted from paralIei toserial mode and transmitted to the measuring unit

(central processing unit).

Measuring unit (central ~rocessing unit)REL 501 is based on a multiprocessor designwith a 32 bit microcontroller and a number of dig-ital signal processors (OSP).

Encoded serial information from the NO con-verter unit is decoded and chang d back to theparalIei information in the measu ing unit. Bandpass numerical filtering of the cor sponding cur-rent and voltage signals is perfor d as weil.

Two OSPs perform abasic impe ance measur-ing function. They calculate the mpedance asseen for the different fault loops n the basis ofthe complex values of the meas red voltages,currents, and changes in the curre ts. The result-ing impedance is compared with the reactanceand resistance limits determined b the relay set-tings for each fault loop and each distance zoneseparately for each millisecond.

The GFC measurement is perfor ed in a sepa-rate OSP.

The resistive reach is settable f r the differentdistance zones, independent of ea h other.

To maintain a definite directional measurementfor the faults close to the relay poi t, a loop volt-age signal is used in conjunction with a phaselocke d positive sequence memory oltage.

A 32 bit microcontroller directs t e informationflow with the different signal pro essors, input!output units and also performs orne differentlogical functions, built inta the REL 01 line termi-nal. It also controls the following t ree communi-cation ports:

-to the man machine communic on unit andconnected PC, if any, for local n machinecommunication

-to the station monitoring system SMS (option)

1MRK 506 001-BEN

REL 501 * 1.2


-disturbance records ar available for collectionby a personal compute and correspondingsoftware.

OptionsThe REL 501 line prote tion terminal is easilyadaptable to the require ents for the protectionof any distribution power Ii e, thanks to its modu-lar design and multi-proc ssor-based configura-tion. This way, the additi al hardware modulesand/or additional softwar functions (describedunder the item "Applicatio "), can be added to thebasic version.

InRut/OutRut unitsOne or two input/output u its, each of them con-sisting of eight binary inpu and twelve-relay out-put contacts are available o the user of REL 501.

Binary inputs are freely rogrammable as theinput logical signals to a y of the built-in func-tions, including the distu ance recording andevent recording facilities. his enables the exten-sive monitoring and eval ation of operation forthe tenninal itself as weil that of all associatedexternal circuits.

More than 300 internai si nals are available forsignalling purposes and a of them is freely pro-grammable to operate an of the additional out-put relays. By the use o built-in configurationfacilities, the user can pe nn its own engineer-ing of all built in functions.

e o eri I mm n'One or two serial int ace units of type8PA ZC 21, intended for r mote communicationpurposes, make it possible or the REL 501 termi-nal to be included at the arne time both in the8C8 and 8M8 or in only e of them. The unitsare optional and they are located on the backplane of REL 501.

Plastic optical fibres up to e single length of 30meters, and glass fibres up to the single length of500 meters can be used as a communicationmedia.

.i rA sensitive earth-fault prote tio n is a natural com-plement to the distance pro ection in isolated andhigh impedance earth ed n tworks. As an option,an external unit of type R PF 4 or RXPG 4 areavailable for these purpos s. They both occupyfour seats in the COMBIF EX mechanical sys-tem.

-~

-to the substation controi system SCS (option)

Power SUI2I2I~ unitThe power supply unit comprises aregulated dc/dc converter that provides a stabilized auxiliaryvoltage to all static circuits within the REL 501 asweil as to all output relays. Four binary input cir-cuits together with the five output relays areinstalled in the same unit.

Man machine interface (MMI) unitThe MMI unit has a common ABB look and isinstalled on the front plane of REL 501. It is usedfor local communication with the personnel onsite. The following most important functions areunified in the MMI unit:

-settings: Four groups of setting parametersare settable or readable only by menu-struc-tured, self-explanatory MMI software. Differentparameters are changeable within the differentsetting groups. The selection of an active set-ting group is also possible.

-information handling: The most importantinformation on the last ten disturbances,including the time of disturbance, its duration,together with the starting and tripping signals,is stored in REL 501 and available to the userat any time via the MMI unit. Information aboutthe actualline current, voltage, active andreactive power together with frequency is alsoavailable. The same is valid for the statuses ofall important internallogical signals.

-fault tracing: The faulty part of a REL 501 asdetected by the built-in continuous self super-vision will be presented by the correspondingcode on the MMI unit.

-simplified testing of different functions and wir-ing during commissioning or any other testingactivities, not only within REL 501, but also inthe external circuits, is feasible by using thepossibility of setting any of the most importantREL 501 internallogical signals at the logicalvalue 1, O or at the actuallogical value. Com-plete signalling, tripping and logical circuitswithin the line bay can be tested this way. Theuse of optional testing logic makes these activ-ities even more comfortable.

The use of a personal computer simplifies to agreat extent the communication with REL 501and gives the user addition al functionality which,due to the lack of space, is not available in theMMI unit itself:

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

(option)

ABB Network Partner 1MR~ 506 0O1-BEN I

REL 501 * 1.2


Technical dataTable 1: Energizing quantities, rated values and limits

Rated value i ~omlnal ra~e I

Burden

Frequency

-= 1 or 5 A:

:0,2-4) x Ir conto(0,2-100) x Ir for 1 s*)< 0,25 VA at Ir

:1:5%

Auxiliary dc voltage EL

power consumptionbasic terminaleach I/O-boardeach output relay

_: 14W

~1W~O.1 W

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

Ur = (48/60) V

Ur= (110/125) VUr = (220/250) V

:I: 20o/a

:1:20%

:1:20%1:1:20%

power consumptionUr = (24/30)VUr = (48/60)V

Ur= (110/125)VUr = (220/250)V

Imax. 0,05 W/inputmax. 0,1 W/inputmax. 0,2 W/inputmax. 0,4 W/input

I-so c to +sso C

I max. 12%

1(10-90)%

I Ambient temperature

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

Table 2: Influencing factors, Permissible influence

Table 3: Electromagnetic compatibility tests


REL501 *1.2Line distance protection terminal

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

Type test values

2,0 kV ac, 1 min

1~'~~:'1~~~~:'O,5JI;~~~ ~~va~~~ v~~d:

Table 5: Mechanical tests

I Type test values

!Glass I

,Glass I

I Glass I

Referenc standards

IIEG 255-2 -1IIEG

255-2 -2

lEG 255-2 -3

Test

Vibration

Shock and bump

Seismic

Table 6: Contact data (reference standard: IEC 255)

I

Function or quantity

I

Fast sign I relays

250 Vac,

800Vdc

Max system voltage

Trlp and Signal relays,250

V ac, dc

11000 V rmsTest voltage across open contact,1 min

Current carrying capacitycontinuous1 s

8A110A

8A10 A

Making capacity at inductive load withUR>10 ms

0,2 s1,0 s

Breaking capacity for ac, cos <p>O,4

30A10A

1250 V/8,O A

148 V/1 A1110 V/O,4 A220 V/O,2 A250 V/O,15 A

Breaking capacity for dcwith UR<40 ms

I Maximum capacitive load

0.4 AO,4A

250 V/8.0 A

48 V/1 A1110 V/0.4A220 V/0,2 A250 V/O,15

110 nF

Table 7: Additional General Data

Weight approx.

Dimensionswidth

heightdepth

Storage temperature

8,5 kg

223,7 mm

267 mm245 mm

-40. C to +700 C

Table 8: Mean values

Nominal range

(0,95-1,05) x fr

(0,1-1,5) xUr

(0,2-4) x Ir

at Icos <pI ~ 0,9at Icos <pI $ 0,8

Function

Frequency

Voltage

Current

Active powerReactive power

I Test

Dielectric test

Impulse voltage test

Insulation resistance

ABB Network Partner 1MR~ 506 001-BEN I

REL 501 * 1.2


Table 9: Event recording


REL 501 * 1.2


Table 13: Distance protection: Accuracy data at reference conditions

Table 14: Autamatic switch anta fault functian

Table 15: System supervision functions

*) Voltage check function and corresponding setting is common for the following functions:

-automatic switch-onto-fault logic-loss of voltage function

-undervoltage protection

Table 16: Fuse failure supervision function

Table 17: CT supervision

Functlon Settlng range

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

Table 18: Fault locator

Functlon

Distance to fault locatorreach for Jr =1 A in

resistive directionreactive direction

min measuring cyclephase selection

1MRK 506 001-BEN

ABB Network Partner REL 501 * 1.2


~

Table 21: Autoreclosing .Three-phase

ABB Network Partner 1MR' 506 001-BEN1

REL 501 * 1.2


Table 22: Synchro-check anal energizing check function


REL 501 * 1.2


ABB Network Partner 1MRIt 506 0O1-BEN1

REL 501 * 1.2


Table 26: Sensitive earth-fault protection (I cos<p principle)

I

Operating current

ABB Network Partner 11MRK 506 001-BENraga 17

REL 501 * 1.2


Table 27: Sensitive earth-fault protection (Transient principle)

Functlon

Rated voltage

Rated frequency fr

Auxiliary dc voltage

Transient current

I

Value11 wv--@~~=

48 or 110 V

Setting ra~ge

(3-15) mA, 00 Hz10-50 mA 200 Hz

Translent voltage

Neutral point voltage

Reset ratio

Operate times

directional detectionstart operation

Powerconsumptioncurrent circuitvoltage circuitauxiliary dc voltage

>90%

1

<2ms

130 ms

0,03 mVA at I = Imln

0,5 VA at 110 V, 50 Hz<5W

ABB Network Partner REL 501 * 1.2 1MR 506 0O1-BEN


Ordering

The basic version of REL 501 is a phase-to-phase and three phase line distance protection tertinai with flve impedance measuring lones and separate general fault criteria. Independent time ove current

protection is included as weil.

Ordering Number: 1 MAK 000 490-AA Quantity: [::1:=::J

Basic data:

Frequency, fr

Ac voltage, Ur

Dc voltage, EL

50/60 Hz

100/110/115/120 V

48/60/110/125/220/250 V

o 1Ao 24/30 V

OSAD 48/60 V

Basic data to specify:

Aated current, Ir

Interface dc voltage, AL 1 o 110/125 V I O 220/250 V

Options:

Binary in/out extension modules, 8 inputs and 12 output relays.Totally 2 I/O modules can be selected.

Quantity (specify interface dc voltage RL2 below) 1 O 2 O

Interface dc voltage, RL2:

024/30 V O 48/60 V1MRK 000 173-GA 1MRK 000 173-AB

Local acceleration logic

Automatic switch-onto-fault logic

Synchrocheck and energizing check function

Fuse failure supervision (Zero + Negative sequence quantities)

Autoreclosing three-phase

Earth-fault overcurrent protection (only one alternative out of fivecan be selected):

Non-directional

Directional or non-directional

4-step earth fault overcurrent protection

Sensitive earth-fault protection mounted in RHGS6 box withwindow door:

Sensitive, directional element, transient (RXPF 4)

Frequency fr O 50 Hz O 60 Hz

DC voltage, EL O 48 V O 110/125 V O 220 V

D 110/125 V1MRK 000 173-88

D 220/250 V1 MRK 000 173-CB

D 1MRK 000 2 1-AA

I D 1MRK 000 2 2-AA

D 1MRK 000 2 5-AAI D 1MRK 000 2 3-AB

I D 1MRK 000 2 4-AA

D 1MAK 000 2i -AA D 1 MAK 000 21 -AA

D 1 MAK 000 2 -AA

D 1 MAK 000 44~-AA

D 250lV

D 1 MRK 000 44~-BA

D 1 MAK 000 22 i -AA D 1 MAK 000 21 -AA

D 1MAK 000 26 -AA

D 1 MAK 000 21 -AA

D 1MAK 000 21! _AA D 1 MAK 001 37 -AA

D 1 MAK 000 22 -AA

D 1MAK 000 22 -AA

D 1 MAK 000 22 -AA

Sensitive, directional element, transient (RXPG 4)

Frequency fr 50 Hz

DC voltage, EL O 48 V O 110 V

Current scale O 3-15mA O 10-50 mA

Under/Overvoltage protection

System supervision functions

Fault locator with GFC 3PH

Event recorder

Disturbance recorder (only one alternative can be selected):

Disturbance recorder

Disturbance recorder with extended memory

On-line controi function (10 signals)

Simulation logic

Remote communication (SMS/SCS)


REL 501 * 1.2


Bus connection unit for remote communication, typs SPA-ZC21 (one for each port If US1d):Transmitter Receiver Quantity:

10101010

20202020

Plastic

Plastic

Glass

Glass

Plastic

Glass

Plastic

Glass

1M ~ K 000 194-AA

1M K 000 194-BA

1M K 000 194-CA

1 M K 000 194-DA

D 1MR~ 000 371-CACOMBITEST test switch module RTXP 24 mounted withthe terminal in RHGS6 case with window door

O Internai earthing O External earthing

On/Off switch for the dc-supply D RK7$S 017-AA

D 1MR 000 020-BR

D 1MR 000 020-DA

D 1MR 000 020-Y

D 1MK 980001-2

D 1MR 000 020-B8

D 1MK 980001-2

D

Mounting details with IP40 degree of protection from the front:

19" rack

Wall mounting

Flush mounting

additional for IP54 (protection terminal only)

Semi-flush mounting

additional for IP54 (protection terminal only)

No mounting details

Quantity: I IQuantity: I I

Quantity: I I

~MRK 506 001-UEN

MKC 950 001-1

S 881 007-AA

j MAK 000 314-AB MAK 000 077-0B

MAK 000 078-M

MAK 000 876-KA

MAK 000 876-AA

Ouantlty: I IOuantlty: I I

Accessories:User's Guide for REL 501 * 1.2

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

SMS-BASE, version 2.0, Basic program for SMS and PC front

connectionSM/REL 501 SMS Program module for REL 501 * 1.2

RECOM Disturbance collection program, version 1.3

REVAL Disturbance evaluation program, english version

CAP 531 -Graphical configuration toolCAP/REL 501, CAP program module for REL 501 * 1.21)

1) SMS-BASE and SM/REL 501 is required

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

End user:Country:

kVVoltage level:Station name:

ABB Network Partner REL 501 * 1.2 1MR 506 001-BEN


Sample specification Protection terminal intended for the protection ofoverhead lines and cables in distribution and sub-transmission networks. Phase-to-phase andthree-phase distance protection function is amain protection function, and directional or non-directional earth-fault overcurrent protection is anoptional complement for solidly earthed net-works. Sensitive earth-fault protection, operatingon an Icos<p or transient (Wischer) principle, mustalso be available. The design should be micro-processor-based, with at least one microproces-sar for each basic protection function.

A distance protection function should contain fiveindependent impedance measuring zones withquadrilateral characteristics and independent set-tings of reach in reactive and resistive direction.The directionality of all zones, independent ofone another, must be programmable.

Separate measuring elements should providegeneral fault criteria, independent of the zonemeasuring elements. Their operating characteris-tics should be advanced, including asettablesafety road impedance area.

The maximum operating time of distance protec-tian Zone 1, specified for a SIR <10 and faultswithin 50% of a set reach, must not exceed45 ms and must be given in the isochronical dia-grams. The characteristic of distance zone 1 inreactive direction must be compensated for aload current. The memory voltage for the properdirectional discrimination at close-in three-phasefaults should be bas ed on a positive sequence

voltage.It must be possible to select between the direc-tional and non-directional version when choosingthe earth-fault overcurrent protection function forsolidly earthed networks. The operation shouldbe based on a measurement of the zero-sequence quantities on a protected line. The time

References1MRK 514 003-BEN

1MRK 506 001-UEN

1MRK 506 001-REN

1 MRK 509 029-BEIN

1 MRK 509 012-BEN

34 SPACOM 22EN1A

1MRK 511 014-BEN

1MRK 511 034-BEN

Series RE 500Mechanical design and mounting accessoriesUser's Guide REL 501 * 1.2

Reference List REL 501

RXPF

RXPG

SPA-ZC 21

SMS 010

CAP 531

delay should be selectable betw en independenttime characteristics and all stan ardised depen-dent ones. A scheme acceleratio logic for coop-eration with the built in three pha e autoreclosingfunction should be available as II.

A line protection terminal should rovide the userlocally with complete information on the last tendisturbances, and remotely wit at least 150time-tagged events per disturb nce. A distur-bance recorder with a minimum 10 seconds ofrecording time for at I east O disturbances,should provide the user with tim -tagged distur-bance records. At least 10 an logue and 48binary signals must be recorded ith a samplingrate that guarantees the presen ation of a fifthharmonic component of any rec rded analogue

signal.

Local man machine communica ian should bebased on a user-friendly, menu tructured pro-gram, and performed by the use o a permanentlyinstalled man machine interface it, type testedtogether with a line protection ter inal.

Remote communication with the line protectionterminal should be possible fra two differentlocations, independent of one ana her.

Remote communication should b possible via alocal fibre optical network and a s andard CCITTtelephone network. Correspondin computer pro-grams must be available. The re ote setting ofthe different setting parameters ithin at leastfour groups of setting parameters ust be possi-ble.The monitoring and controlling o all input andoutput logical signals as weil as t 'pping signalsmust be possible both locally and emotely. Con-tinuous self supervision function ith self diag-nostic possibilities must be incl ed in a lineprotection terminal.

REL 501 * 1 - ABB Group · -local acceleration and 10ss-of-load logic-disturbance recorder with a...

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