Siemens 7SD502 User manual
)NSTRUCTION -ANUAL
.UMERICAL ,INE $IFFERENTIAL 0ROTECTION WITH 0ILOT 7IRES
3$ 6
/RDER .O # ' #
&IGURE )LLUSTRATION OF THE NUMERICAL LINE DIFFERENTIAL PROTECTION RELAY 3$ IN FLUSH MOUNTING CASE
D3IEMENS !'
#ONFORMITY3$ 6
# ' #
#ONFORMITY
4HIS PRODUCT IS IN CONFORMITY WITH THE DIRECTIVE OF THE #OUNCIL OF THE %UROPEAN #OMMUNITIES ON THE APPROXIMA
TION OF THE LAWS OF THE -EMBER 3TATES RELATING TO ELECTROMAGNETIC COMPATIBILITY %-# #OUNCIL $IRECTIVE
%%# AND CONCERNING ELECTRICAL EQUIPMENT FOR APPLICATION WITHIN SPECIFIED VOLTAGE LIMITS ,OW VOLTAGE
DIRECTIVE %%#
#ONFORMITY IS PROVED BY TESTS THAT HAD BEEN PERFORMED ACCORDING TO ARTICLE OF THE #OUNCIL $IRECTIVE IN ACCOR
DANCE WITH THE GENERIC STANDARDS %. AND %. FOR %-# DIRECTIVE AND THE STANDARDS %.
FOR LOW VOLTAGE DIRECTIVE BY 3IEMENS !'
4HE DEVICE IS DESIGNED AND MANUFACTURED FOR APPLICATION IN INDUSTRIAL ENVIRONMENT
4HE DEVICE IS DESIGNED IN ACCORDANCE WITH THE INTERNATIONAL STANDARDS OF )%# AND THE 'ERMAN STAN
DARDS $). PART CORRESPONDING TO 6$% PART
3$ #ONTENTS
6
# ' #
#ONTENTS
)NTRODUCTION
!PPLICATION
&EATURES
)MPLEMENTED FUNCTIONS
/PERATION WITH OTHER DIFFERENTIAL RELAYS
$ESIGN
!RRANGEMENTS
$IMENSIONS
/RDERING DATA
4ECHNICAL $ATA
'ENERAL DATA
)NPUTSOUTPUTS
%LECTRICAL TESTS
-ECHANICAL STRESS TESTS
#LIMATIC STRESS TESTS
3ERVICE CONDITIONS
$ESIGN
,INE DIFFERENTIAL PROTECTION
%XTERNAL LOCAL AND TRANSFER TRIP
/VERCURRENT TIME PROTECTION
4HERMAL OVERLOAD PROTECTION
!NCILLARY FUNCTIONS
-ETHOD OF OPERATION
/PERATION OF COMPLETE UNIT
#URRENT TRANSFORMER CONNECTIONS AND FAULT CURRENT SENSITIVITY
3TANDARD CONNECTION , , %
#ONNECTION FOR DECREASED EARTH CURRENT SENSITIVITY , , ,
#ONNECTION FOR INCREASED EARTH CURRENT SENSITIVITY
5NEQUAL CT RATED CURRENTS
4WOPHASE CONNECTION
-ULTISYSTEM PROTECTION
,INE DIFFERENTIAL PROTECTION
0RINCIPLE OF MEASUREMENT
3TABILIZED DIFFERENTIAL PROTECTION
-EASURED VALUE FORMATION FOR DIFFERENTIAL PROTECTION USING TWO PILOT WIRES
-EASURED VALUE PROCESSING
!DDON STABILIZATION DURING CURRENT TRANSFORMER SATURATION
#ONTENTS3$ 6
# ' #
,OCAL CURRENT THRESHOLD
0ICKUP AND TRIP DELAY
)NTERTRIPPING OPTIONAL
0ILOT WIRE MONITORING OPTIONAL
5SE ON THREETERMINAL LINES
0ILOT WIRE RESISTANCE AND CAPACITANCE
%XTERNAL LOCAL AND TRANSFER TRIP
%XTERNAL LOCAL TRIP
4RANSFER TRIP OPTIONAL
"ACKUP OVERCURRENT TIME PROTECTION
4HERMAL OVERLOAD PROTECTION
#IRCUIT BREAKER TRIP TEST
!NCILLARY FUNCTIONS
0ROCESSING OF ANNUNCIATIONS
)NDICATORS AND BINARY OUTPUTS SIGNAL RELAYS
)NFORMATION ON THE DISPLAY PANEL OR TO A PERSONAL COMPUTER
)NFORMATION TO A CENTRAL UNIT OPTIONAL
$ATA STORAGE AND TRANSMISSION FOR FAULT RECORDING
/PERATING MEASUREMENTS AND CONVERSION
-ONITORING FUNCTIONS
(ARDWARE MONITORING
3OFTWARE MONITORING
)NSTALLATION INSTRUCTIONS
5NPACKING AND REPACKING
0REPARATIONS
-OUNTING AND CONNECTIONS
-ODEL 3$JJ"JJJ FOR PANEL SURFACE MOUNTING
-ODEL 3$JJ#JJJ FOR PANEL FLUSH MOUNTING OR 3$J J%JJJ FOR CUBICLE INSTALLATION
#HECKING THE RATED DATA
#ONTROL DC VOLTAGE OF BINARY INPUTS
#HECKING THE TRANSMISSION LINK TO ,3!
#ONNECTIONS
3TANDARD CONNECTIONS , , %
#ONNECTION FOR DECREASED EARTH CURRENT SENSITIVITY , , ,
#ONNECTION FOR INCREASED EARTH CURRENT SENSITIVITY
5NEQUAL PRIMARY CT RATED CURRENTS
4WOPHASE CONNECTION
-ULTISYSTEM PROTECTION
0RIMARY CAPACITANCES
#URRENT TRANSFORMER REQUIREMENTS
0ILOT WIRE REQUIREMENTS
#HECKING THE CONNECTIONS
#ONFIGURATION OF OPERATION AND MEMORY FUNCTIONS
/PERATIONAL PRECONDITIONS AND GENERAL
3ETTINGS FOR INTEGRATED OPERATION ADDRESS BLOCK
#ONFIGURATION OF THE SERIAL INTERFACES ADDRESS BLOCK
3ETTINGS FOR FAULT RECORDING ADDRESS BLOCK
#ONFIGURATION OF THE PROTECTIVE FUNCTIONS
)NTRODUCTION
0ROGRAMMING THE SCOPE OF FUNCTIONS ADDRESS BLOCK
3ETTING THE DEVICE CONFIGURATION ADDRESS BLOCK
3$ #ONTENTS
6
# ' #
-ARSHALLING OF BINARY INPUTS BINARY OUTPUTS AND ,%$ INDICATORS
)NTRODUCTION
-ARSHALLING OF THE BINARY INPUTS ADDRESS BLOCK
-ARSHALLING OF THE SIGNAL OUTPUT RELAYS ADDRESS BLOCK
-ARSHALLING OF THE ,%$ INDICATORS ADDRESS BLOCK
-ARSHALLING OF THE COMMAND TRIP RELAYS ADDRESS BLOCK
/PERATING INSTRUCTIONS
3AFETY PRECAUTIONS
$IALOG WITH THE RELAY
-EMBRANE KEYBOARD AND DISPLAY PANEL
/PERATION WITH A PERSONAL COMPUTER
/PERATIONAL PRECONDITIONS
2EPRESENTATION OF THE RELAY FRONT VIEW
3ETTING THE FUNCTIONAL PARAMETERS
)NTRODUCTION
0ARAMETERIZING PROCEDURE
3ELECTABLE PARAMETER SETS
3ETTING OF DATE AND TIME
)NITIAL DISPLAYS ADDRESS BLOCKS AND
0OWER SYSTEM DATA ADDRESS BLOCK
3ETTINGS FOR THE LINE DIFFERENTIAL PROTECTION ADDRESS BLOCK
3ETTINGS FOR PILOT WIRE MONITORING ADDRESS BLOCK
3ETTINGS FOR THE EXTERNAL LOCAL TRIP FACILITY ADDRESS BLOCK
3ETTINGS FOR THE TRANSFER TRIP FACILITY ADDRESS BLOCK
3ETTINGS FOR THE REACTION ON RECEPTION OF A REMOTE TRIP SIGNAL ADDRESS BLOCK
3ETTINGS FOR BACKUP OVERCURRENT TIME PROTECTION ADDRESS BLOCK
3ETTINGS FOR THERMAL OVERLOAD PROTECTION ADDRESS BLOCK
3ETTINGS FOR MEASURED VALUE MONITORING ADDRESS BLOCK
!NNUNCIATIONS
)NTRODUCTION
/PERATIONAL ANNUNCIATIONS ADDRESS BLOCK
&AULT ANNUNCIATIONS ADDRESS BLOCK TO
#IRCUIT BREAKER OPERATION STATISTICS ADDRESS BLOCK
2EADOUT OF OPERATIONAL MEASURED VALUES ADDRESS BLOCKS AND
/PERATIONAL CONTROL FACILITIES
!DJUSTING AND SYNCHRONIZING THE REAL TIME CLOCK ADDRESS BLOCK
%RASING STORED ANNUNCIATIONS AND COUNTERS ADDRESS BLOCK
)NFORMATION TO ,3! DURING TEST OPERATION ADDRESS BLOCK
3ELECTION OF PARAMETER SETS ADDRESS BLOCK
2EADOUT OF SETTINGS OF A PARAMETER SET
#HANGEOVER OF THE ACTIVE PARAMETER SET FROM THE OPERATING PANEL
#HANGEOVER OF THE ACTIVE PARAMETER SET VIA BINARY INPUTS
4ESTING AND COMMISSIONING
'ENERAL
4ESTING THE DIFFERENTIAL PROTECTION
4ESTING THE BACKUP OVERCURRENT TIME PROTECTION
4ESTING THE HIGHSET OVERCURRENT STAGE )
4ESTING THE DEFINITE TIME OVERCURRENT STAGE )
4ESTING THE INVERSE TIME OVERCURRENT STAGE )
P
4ESTING THE THERMAL OVERLOAD PROTECTION FUNCTION
#ONTENTS3$ 6
# ' #
#OMMISSIONING USING PRIMARY TESTS
-EASURING AND SETTING OF THE PILOT WIRE CAPACITANCE
-EASURING AND SETTING OF THE PILOT WIRE RESISTANCE
#HECKING OF THE CURRENT TRANSFORMER CONNECTIONS AT ONE LINE END
#HECKING OF THE CURRENT TRANSFORMER AND PILOT WIRE CONNECTIONS AT BOTH LINE ENDS
#HECKING OF THE CURRENT TRANSFORMER AND PILOT WIRE CONNECTIONS AT THREETERMINAL LINES
0ILOT WIRE MONITORING IF FITTED
#HECKING DIRECT LOCAL AND TRANSFER TRIP FACILITY
4RIPPING TEST INCLUDING CIRCUIT BREAKER ADDRESS BLOCK
3WITCHING TESTS AND STARTING A TEST FAULT RECORD ADDRESS BLOCK
0UTTING THE RELAY INTO OPERATION
-AINTENANCE AND FAULT TRACING
2OUTINE CHECKS
2EPLACING THE CLOCK MODULE
&AULT TRACING
2EPLACING THE MINIFUSE
2EPAIRS
3TORAGE
!PPENDIX
! 'ENERAL DIAGRAMS
" #ONNECTION DIAGRAMS
# 4ABLES
./4%
4HIS INSTRUCTION MANUAL DOES NOT PURPORT TO COVER ALL
DETAILS IN EQUIPMENT NOR TO PROVIDE FOR EVERY POSSI
BLE CONTINGENCY TO BE MET IN CONNECTION WITH INSTAL
LATION OPERATION OR MAINTENANCE
3HOULD FURTHER INFORMATION BE DESIRED OR SHOULD PAR
TICULAR PROBLEMS ARISE WHICH ARE NOT COVERED SUFFI
CIENTLY FOR THE PURCHASER S PURPOSE THE MATTER
SHOULD BE REFERRED TO THE LOCAL 3IEMENS SALES OFFICE
4HE CONTENTS OF THIS INSTRUCTION MANUAL SHALL NOT BE
COME PART NOR MODIFY ANY PRIOR OR EXISTING AGREE
MENT COMMITMENT OR RELATIONSHIP 4HE SALES CON
TRACT CONTAINS THE ENTIRE OBLIGATIONS OF 3IEMENS 4HE
WARRANTY CONTAINED IN THE CONTRACT BETWEEN THE PAR
TIES IS THE SOLE WARRANTY OF 3IEMENS !NY STATEMENTS
CONTAINED HEREIN DO NOT CREATE NEW WARRANTIES NOR
MODIFY THE EXISTING WARRANTY
)NTRODUCTION3$ 6
# ' #
)NTRODUCTION
!PPLICATION
4HE NUMERICAL LINE DIFFERENTIAL PROTECTION IS A FAST AND
SELECTIVE SHORTCIRCUIT PROTECTION FOR CABLES AND OVER
HEAD LINES INDEPENDENT OF THE TREATMENT OF THE NET
WORK NEUTRAL
)T IS PARTICULARLY SUITED TO SHORT LINES WHERE FOR EX
AMPLE ZONE OF THE DISTANCE PROTECTION CANNOT BE
SET SUFFICIENTLY SHORT )T CAN BE USED WITH LINES DOWN
TO ANY LENGTH /NE SET OF CURRENT TRANSFORMERS IS RE
QUIRED AT EACH END OF THE LINE 6OLTAGE TRANSFORMERS
ARE NOT REQUIRED
!N ESSENTIAL ADVANTAGE OF THE DIFFERENTIAL PROTECTION
SYSTEM IS ITS ABILITY TO INITIATE THE IMMEDIATE DISCON
NECTION OF ANY SHORTCIRCUIT AT ANY LOCATION IN THE PRO
TECTED ZONE 4HE CURRENT TRANSFORMERS AT EACH END
SEPARATE THE PROTECTED ZONE FROM THE REST OF THE NET
WORK 4HIS PRECISE ZONE CUTOFF IS THE REASON FOR THE
ABSOLUTE SELECTIVITY OF THE DIFFERENTIAL PROTECTION PRIN
CIPLE 4HIS ELIMINATES THE NEED TO DELAY THE TRIP SIGNAL
WHICH IS NECESSARY WITH TIMEGRADED PROTECTION
4HE LINE DIFFERENTIAL PROTECTION SYSTEM REQUIRES THE
INSTALLATION OF ONE 3$ UNIT AT EACH END OF THE
PROTECTED LINE 4HE TWO RELAYS MUST BE INTERCON
NECTED BY TWO PILOT WIRES 4HESE PILOT WIRES MAY
HAVE A MAXIMUM LOOP RESISTANCE OF APPROXIMATELY
/HMS 4HEY MUST BE ADEQUATELY INSULATED
FROM ONE ANOTHER AND TO EARTH REFER TO 3ECTION
3$ IS PARTICULARLY DESIGNED TO OPERATE
WITH EXISTENT PILOT WIRE PAIRS )N CASE A BRANDNEW
COMPARISON LINK IS TO BE INSTALLED THE USE OF CURRENT
COMPARISON PROTECTION 3$ OR 3$ WITH OPTI
CAL FIBRE LINK IS ADVANTAGEOUS FOR TWOTERMINAL LINES
3INCE ANY FAULT ON THE TWO PILOT WIRES WILL CAUSE FAIL
URE OF THE PROTECTIVE DEVICES IT IS RECOMMENDED THAT
THE PILOT WIRE MONITORING SYSTEM BE INSTALLED )F A PILOT
WIRE FAULT IS DETECTED THE DIFFERENTIAL PROTECTION SYS
TEM MAY BE BLOCKED SELECTABLE AND AN ALARM IS IS
SUED
3INCE THE COMPARISON PROTECTION DOES NOT DISCON
NECT FAULTS OUTSIDE THE PROTECTED ZONE AN ADDITIONAL
TIMEGRADED PROTECTION MUST BE INSTALLED AT AT LEAST
ONE END OF THE LINE TO SERVE AS SUPERIMPOSED BACK
UP PROTECTION &OR THIS PURPOSE THE INCORPORATED
OVERCURRENT TIME PROTECTION MAY BE USED WHICH CAN
OPERATE OPTIONALLY AS DEFINITE TIME OR INVERSE TIME
PROTECTION
)N CASES WHERE A POWER TRANSFORMER IS DIRECTLY CON
NECTED IE WITHOUT A CIRCUITBREAKER TO A CABLE OR TO
AN OVERHEAD LINE CURRENT TRANSFORMERS SHOULD BE IN
STALLED AT THE CONNECTION POINT AND THE 3$ RELAY
SHOULD ONLY BE USED AS LINE PROTECTION "Y USE OF THE
INTEGRATED SECOND HARMONIC RESTRAINT FEATURE FROM
FIRMWARE VERSION 6 OR LATER 3$ IS IN PRINCI
PLE SUITABLE FOR THE INCLUSION OF A TRANSFORMER IN THE
PROTECTED ZONE BUT BECAUSE OF THE HIGH PARASITIC
CURRENTS ESPECIALLY ON CABLES THE ADVANTAGE OF HIGH
SENSITIVITY CANNOT BE EXPLOITED AS WITH A TRANSFORMER
DIFFERENTIAL PROTECTION EG 54 WHICH PROVIDES
ADDITIONALLY AN INTEGRATED MATCHING OF THE TRANS
FORMER VECTOR GROUP
! THERMAL OVERLOAD PROTECTION IS INTEGRATED FOR USE
ON CABLES
4HROUGHOUT A FAULT IN THE NETWORK THE MAGNITUDES OF
THE INSTANTANEOUS VALUES ARE STORED FOR A PERIOD OF
MAX SECONDS AT (Z AND ARE AVAILABLE FOR SUB
SEQUENT FAULT ANALYSIS &AULT INCEPTION IS TAGGED WITH
THE REAL TIME PROVIDED THE INTERNAL REAL TIME CLOCK IS
AVAILABLE
#ONTINUOUS PLAUSIBILITY MONITORING OF THE INTERNAL
MEASURED VALUE PROCESSING CIRCUITS AND MONITORING
OF THE AUXILIARY VOLTAGES TO ENSURE THAT THEY REMAIN
WITHIN TOLERANCE ARE OBVIOUSLY INHERENT FEATURES
3ERIAL INTERFACES ALLOW COMPREHENSIVE COMMUNICA
TION WITH OTHER DIGITAL CONTROL AND STORAGE DEVICES
OPTIONAL &OR DATA TRANSMISSION A STANDARDIZED
PROTOCOL IN ACCORDANCE WITH )%# AND
6$%7:6%) IS USED AS WELL AS ACCORDING $).
SELECTABLE 4HE DEVICE CAN THEREFORE BE INCORPO
RATED IN ,OCALIZED 3UBSTATION !UTOMATION NETWORKS
,3!
)NTRODUCTION3$ 6
# ' #
3$
3TATION
3$
3TATION
0ILOT WIRE
PAIR
&IGURE ,INE DIFFERENTIAL PROTECTION FOR USE WITH PILOT WIRES 3$ SCHEME
&EATURES
0ROCESSOR SYSTEM WITH POWERFUL BIT MICRO
PROCESSOR
#OMPLETE DIGITAL MEASURED VALUE PROCESSING AND
CONTROL FROM DATA ACQUISITION AND DIGITIZING OF THE
MEASURED VALUES UP TO THE TRIP DECISIONS FOR THE
CIRCUIT BREAKERS
#OMPLETE GALVANIC AND RELIABLE SEPARATION OF THE
INTERNAL PROCESSING CIRCUITS FROM THE MEASURE
MENT CONTROL AND SUPPLY CIRCUITS OF THE SYSTEM
WITH SCREENED ANALOG INPUT TRANSDUCERS BINARY
INPUT AND OUTPUT MODULES AND $# CONVERTER
3EPARATE MEASURING UNIT AT EACH LINE END
-ODERATE CURRENT TRANSFORMER REQUIREMENTS
#OMPREHENSIVE SUPPLEMENTARY FUNCTIONS REFER
TO 3ECTION
#ONTINUOUS CALCULATION OF OPERATIONAL MEASURED
VALUES AND INDICATION ON THE FRONT DISPLAY
3IMPLE SETTING AND OPERATION USING THE INTEGRATED
OPERATION PANEL OR A CONNECTED PERSONAL COMPUT
ER WITH MENUGUIDED SOFTWARE
3TORAGE OF FAULT DATA STORAGE OF INSTANTANEOUS
VALUES DURING A FAULT FOR FAULT RECORDING
$ATA EXCHANGE WITH OPPOSITE STATION VIA A SYM
METRICAL PILOT WIRE PAIR ALLOWS TO UTILIZE EXISTING PI
LOT WIRES
#OMMUNICATION WITH CENTRAL CONTROL AND STORAGE
DEVICES VIA SERIAL INTERFACES IS POSSIBLE WITH OPTI
CAL FIBRE CONNECTION OPTIONAL
#ONTINUOUS MONITORING OF THE MEASURED VALUES
AND THE HARDWARE AND SOFTWARE OF THE RELAY
3IMPLE INSTALLATION AND COMMISSIONING INTE
GRATED COMMISSIONING AIDS
,OW MAINTENANCE REQUIREMENTS
)NTRODUCTION3$ 6
# ' #
)MPLEMENTED FUNCTIONS
4HE NUMERICAL LINE DIFFERENTIAL PROTECTION RELAY
3$ CONTAINS THE FOLLOWING FUNCTIONS
$IFFERENTIAL PROTECTION
PROTECTION FOR ALL KINDS OF SHORTCIRCUITS IN SYSTEMS
WITH EARTHED OR NONEARTHED STARPOINT
CURRENT RESTRAINT COMPENSATES FOR CT TRANSFORMA
TION ERRORS UNDER THROUGHFAULT CONDITIONS
ADDITIONAL DYNAMIC STABILIZATION AGAINST DIFFERENT
CURRENT TRANSFORMER SATURATION
SECOND HARMONIC STABILIZATION FOR INCLUSION OF A
POWER TRANSFORMER IN THE PROTECTED ZONE
ONE END TRIPPING FOR FAULT FED FROM ONE END ONLY
OPTIONALLY TRIPPING OF THE NONFEEDING END POS
SIBLE
DATA EXCHANGE WITH OPPOSITE STATION VIA A PAIR OF
SYMMETRICAL PILOT WIRES
PILOT WIRE RESISTANCE IS ADJUSTED BY INTERNAL CALCU
LATION
COMPENSATION OF THE PILOT WIRE CAPACITANCE BY IN
TERNAL CALCULATION WITHOUT EXTERNAL COMPONENTS
OPTIONAL CONTINUOUS PILOT WIRE SUPERVISION WITH
PULSE CODED VOICE FREQUENCY SIGNAL
/VERCURRENT TIME PROTECTION
OPERATES AS DEFINITE TIME OR INVERSE TIME OVERCUR
RENT PROTECTION WITH SELECTABLE CHARACTERISTICS
SEPARATE HIGH CURRENT STAGE WITH DEFINITE TIME
CHARACTERISTIC OR INSTANTANEOUS TRIP
$IRECT LOCAL AND TRANSFER TRIP
TRIPPING OF THE LOCAL CIRCUIT BREAKER FROM AN EXTER
NAL SOURCE WITH ADJUSTABLE DELAY AND RESET TIME
TRIPPING OF THE REMOTE END CIRCUIT BREAKER BY AN
EXTERNAL SIGNAL EG BREAKER FAILURE PROTECTION
MODELS WITH PILOT WIRE MONITOR
4HERMAL OVERLOAD PROTECTION
PROVIDES THERMAL REPLICA OF THE CURRENT HEAT
LOSSES
TRUE RMS MEASUREMENT OF SYMMETRICAL CURRENTS
ADJUSTABLE WARNING STAGES
4HE STANDARD FUNCTIONS ALSO INCLUDE
CONTINUOUS SELFMONITORING RIGHT FROM THE $# CIR
CUITS THROUGH THE CURRENT INPUTS TO THE TRIPPING RE
LAYS THUS ACHIEVING MAXIMUM AVAILABILITY AND A
MORE CORRECTIVE THAN PREVENTIVE MAINTENANCE
STRATEGY
MEASUREMENT AND TEST ROUTINES UNDER NORMAL
LOAD CONDITIONS MEASUREMENT OF LOAD CURRENT
ANNUNCIATION STORAGE FOR THE LAST THREE NETWORK
FAULTS WITH REAL TIME CLOCK
DATA STORAGE AND TRANSMISSION FOR FAULT RECORDS
GIVING
RAPID FAULT ANALYSIS
DETAILED FAULT RECORDS
COUNTING OF TRIPPING COMMANDS AS WELL AS RECORD
ING OF FAULT DATA AND ACCUMULATIVE ADDITION OF THE
INTERRUPTED FAULT CURRENTS
COMMISSIONING AIDS SUCH AS CONNECTION CHECK
MEASUREMENT OF THE PILOT WIRE RESISTANCE AND CA
PACITANCE AND CIRCUIT BREAKER LIVE TEST
/PERATION WITH OTHER DIFFERENTIAL RELAYS
4HE NUMERICAL LINE DIFFERENTIAL PROTECTION RELAY
3$ IS NOT SUITABLE FOR USE WITH OTHER TYPES OF DIF
FERENTIAL RELAYS 4HE INTERNAL ADJUSTMENT OF THE INFLU
ENCE OF THE PILOT WIRE RESISTANCE AND THE OPTIONAL
PILOT WIRE SUPERVISION USING A PULSE CODE MODULATED
VOICE FREQUENCY CANNOT OPERATE WITH DIFFERENT TYPES
OF DIFFERENTIAL RELAYS WITH TWO PILOT WIRES 3HOULD IT BE
COME NECESSARY TO DIVIDE A LINE WHICH IS PROTECTED
BY ELECTROMECHANICAL OR ANALOGSTATICAL RELAYS INTO
TWO SECTIONS IT IS ADVISABLE TO INSTALL 3$ AT BOTH
ENDS OF ONE OF THE LINE SECTIONS AND TO USE THE EXIST
ING RELAY PAIR FOR THE OTHER LINE SECTION OF COURSE
BOTH SECTIONS CAN BE PROTECTED WITH 3$ PROTEC
TION SYSTEMS
$ESIGN3$ 6
# ' #
$ESIGN
!RRANGEMENTS
!LL PROTECTION FUNCTIONS INCLUDING DCDC CONVERTER
ARE ACCOMMODATED ON TWO PLUGIN MODULES OF
$OUBLE %UROPA &ORMAT 4HESE MODULES ARE INSTALLED
IN A HOUSING 80 4WO DIFFERENT TYPES OF HOUSINGS
CAN BE DELIVERED
3$J J"JJJ IN HOUSING 80 FOR
PANEL SURFACE MOUNTING
4HE HOUSING HAS FULL SHEETMETAL COVERS AS WELL
AS A REMOVABLE FRONT COVER WITH TRANSPARENT PLAS
TIC WINDOW
'UIDE RAILS ARE BUILT IN FOR THE SUPPORT OF PLUGIN
MODULES /N THE TOP AND BOTTOM PLATES OF THE
HOUSING CONTACT AREAS WHICH ARE ELECTRICALLY CON
NECTED TO THE HOUSING ARE INSTALLED TO MATE WITH
THE EARTHING SPRINGS OF THE MODULE #ONNECTION TO
EARTH IS MADE BEFORE THE PLUGS MAKE CONTACT
%ARTHING SCREWS HAVE BEEN PROVIDED ON THE LEFT
HAND SIDE OF THE HOUSING !DDITIONALLY TERMINAL
IS CONNECTED TO THE CASE
!LL EXTERNAL SIGNALS ARE CONNECTED TO SCREWED
TERMINALS WHICH ARE ARRANGED OVER CUTOUTS ON THE
TOP AND BOTTOM COVERS 4HE TERMINALS ARE NUM
BERED CONSECUTIVELY FROM LEFT TO RIGHT AT THE BOT
TOM AND TOP
4HE HEAVY DUTY CURRENT PLUG CONNECTORS PROVIDE
AUTOMATIC SHORTING OF THE CT CIRCUITS WHENEVER
THE MODULES ARE WITHDRAWN 4HIS DOES NOT RELEASE
FROM THE CARE TO BE TAKEN WHEN CT SECONDARY CIR
CUITS ARE CONCERNED 7ITH DIFFERENTIAL PROTECTION
RELAYS TRIP MAY OCCUR DUE TO UNEQUAL CONTACTING
WHEN MODULES ARE WITHDRAWN OR INSERTED
&OR THE OPTIONAL INTERFACE TO A CENTRAL CONTROL AND
STORAGE UNIT AN ADDITIONAL COUPLING FACILITY HAS
BEEN PROVIDED &OR OPTICAL FIBRE CONNECTION MOD
EL 3$JJJJJJ J# TWO & 3-! CONNEC
TORS HAVE BEEN PROVIDED
4HE DEGREE OF PROTECTION FOR THE HOUSING IS )0
FOR THE TERMINALS )0 &OR DIMENSIONS PLEASE RE
FER TO &IGURE
3$J J#JJJ IN HOUSING 80 FOR
PANEL FLUSH MOUNTING OR 3$JJ%JJJ FOR
CUBICLE INSTALLATION
4HE HOUSING HAS FULL SHEETMETAL COVERS AS WELL AS
A REMOVABLE FRONT COVER WITH TRANSPARENT PLASTIC
WINDOW FOR PANEL MOUNTING
'UIDE RAILS ARE BUILT IN FOR THE SUPPORT OF PLUGIN
MODULES /N THE TOP AND BOTTOM PLATES OF THE
HOUSING CONTACT AREAS WHICH ARE ELECTRICALLY CON
NECTED TO THE HOUSING ARE INSTALLED TO MATE WITH
THE EARTHING SPRINGS OF THE MODULE #ONNECTION TO
EARTH IS MADE BEFORE THE PLUGS MAKE CONTACT
%ARTHING SCREWS HAVE BEEN PROVIDED ON THE REAR
WALL OF THE HOUSING
!LL EXTERNAL SIGNALS ARE CONNECTED TO CONNECTOR
MODULES WHICH ARE MOUNTED ON THE REAR COVER
OVER CUTOUTS &OR EACH ELECTRICAL CONNECTION ONE
SCREWED TERMINAL AND ONE PARALLEL SNAPIN TERMI
NAL ARE PROVIDED &OR FIELD WIRING THE USE OF THE
SCREWED TERMINALS IS RECOMMENDED SNAPIN CON
NECTION REQUIRES SPECIAL TOOLS
4HE HEAVY DUTY CURRENT PLUG CONNECTORS PROVIDE
AUTOMATIC SHORTING OF THE CT CIRCUITS WHENEVER
THE MODULES ARE WITHDRAWN 4HIS DOES NOT RELEASE
FROM THE CARE TO BE TAKEN WHEN CT SECONDARY CIR
CUITS ARE CONCERNED 7ITH DIFFERENTIAL PROTECTION
RELAYS TRIP MAY OCCUR DUE TO UNEQUAL CONTACTING
WHEN MODULES ARE WITHDRAWN OR INSERTED
4HE OPTIONAL INTERFACE TO A CENTRAL CONTROL AND
STORAGE UNIT 3$JJJJJJ J" IS LED TO A
MODULE WITH & 3-! CONNECTORS FOR OPTICAL FIBRE
CONNECTION
4HE PLUG MODULES ARE LABELLED ACCORDING TO THEIR
MOUNTING POSITION BY MEANS OF A GRID SYSTEM EG
! 4HE INDIVIDUAL CONNECTIONS WITHIN A MODULE
ARE NUMBERED CONSECUTIVELY FROM LEFT TO RIGHT
WHEN VIEWED FROM THE REAR EG ! REFER TO
&IGURE
$EGREE OF PROTECTION FOR THE HOUSING IS )0 )0
FOR CUBICLE INSTALLATION FOR THE TERMINALS )0 &OR
DIMENSIONS PLEASE REFER TO &IGURE
$ESIGN3$ 6
# ' #
"!
!"
#$
$#
!
HORIZONTAL POSITION
VERTICAL POSITION
CONSECUTIVE CONNECTION NUMBER
(EAVY CURRENT CONNECTOR
EG !
6OLTAGE CONNECTOR
EG "
"!
&IGURE #ONNECTION PLUGS REAR VIEW HOUSING FOR FLUSH MOUNTING EXAMPLE
$ESIGN3$ 6
# ' #
$IMENSIONS
&IGURES AND SHOW THE DIMENSIONS OF THE VARIOUS TYPES OF HOUSINGS AVAILABLE
3$ (OUSING FOR PANEL SURFACE MOUNTING 80
)NTERFACE FOR OPTICAL
FIBRE BELOW 2ESET AND PAG
ING BUTTONS
-AX TERMINALS FOR CROSSSECTION MAX MM
/PTICAL FIBRE CONNECTORS
INTEGRATED & 3-! CONNECTOR
WITH CERAMIC POST
EG FOR GLASS FIBRE
UM
%ARTHING TERMINAL
$IMENSIONS IN MM
&IGURE $IMENSIONS FOR HOUSING 80 FOR PANEL SURFACE MOUNTING
$ESIGN3$ 6
# ' #
3$ (OUSING FOR PANEL FLUSH MOUNTING OR CUBICLE INSTALLATION 80
-OUNTING PLATE
#ONNECTOR MODULES
2ESET AND PAGING
BUTTONS
0ANEL CUTOUT
OR-
$IMENSIONS IN MM
(EAVY CURRENT CONNECTORS
3CREWED TERMINAL FOR MAX MM
4WIN SPRING CRIMP CONNECTOR IN PARALLEL FOR
MAX MM
&URTHER CONNECTORS
3CREWED TERMINAL FOR MAX MM
4WIN SPRING CRIMP CONNECTOR IN PARALLEL FOR
MAX MM
/PTICAL FIBRE CONNECTORS
INTEGRATED & 3-! CONNECTOR
WITH CERAMIC POST
EG FOR GLASS FIBRE
m
M
&%
$# !
&IGURE $IMENSIONS FOR HOUSING 80 FOR PANEL FLUSH MOUNTING OR CUBICLE INSTALLATION
$ESIGN3$ 6
# ' #
/RDERING DATA
!UXILIARY VOLTAGE
6 DC
6 DC
6 DC
2ATED CURRENT RATED FREQUENCY
! (Z
! (Z
!
.UMERICAL ,INE $IFFERENTIAL 0ROTECTION
WITH 0ILOT 7IRES 3$
#ONSTRUCTION
IN HOUSING 80 FOR PANEL SURFACE MOUNTING "
IN HOUSING 80 FOR PANEL FLUSH MOUNTING #
IN HOUSING 80 FOR CUBICLE INSTALLATION WITHOUT GLASS FRONT %
3ERIAL INTERFACE FOR COUPLING TO A CONTROL CENTRE
WITHOUT SERIAL INTERFACE !
WITH SERIAL INTERFACE FOR OPTICAL FIBRE CONNECTION #
0ILOT WIRE SUPERVISION TELEPROTECTION INPUTSOUTPUTS
WITH PILOT WIRE SUPERVISION INTERTRIPPING AND REMOTE TRIP
BINARY INPUTS SIGNAL RELAYS TRIP RELAYS
!1
4ECHNICAL DATA3$ 6
# ' #
4ECHNICAL DATA
'ENERAL DATA
)NPUTSOUTPUTS
-EASURING CIRCUITS
2ATED CURRENT )
.
!OR!
2ATED FREQUENCY F
.
(Z (Z SETTABLE
0OWER CONSUMPTION IN CURRENT PATH BASED ON STAN
DARD CT CONNECTION , , % &IGURE RE
FERRED TO THROUGH FLOWING RATED CURRENT
SINGLEPHASE APPROX 6!
THREEPHASE SYMMETRICAL APPROX 6!
SINGLEPHASE APPROX 6!
THREEPHASE SYMMETRICAL APPROX 6!
IN PHASE
, , ,
)
.
!
)
.
!
/VERLOAD CAPABILITY IN CURRENT PATH FOR EACH INPUT WINDING AS WELL AS FOR THE OUTPUT SUMMATION CURRENT
THERMAL RMS })
.
FOR S
})
.
FOR S
})
.
CONTINUOUS
DYNAMIC PULSE CURRENT })
.
ONE HALF CYCLE
!UXILIARY VOLTAGE
0OWER SUPPLY VIA INTEGRATED DCDC CONVERTER
2ATED AUXILIARY VOLTAGE 5
(
6DC 6DC 6DC
TO 6DC TO 6DC TO 6DC0ERMISSIBLE VARIATIONS
3UPERIMPOSED AC VOLTAGE AT RATED VOLTAGE
PEAKTOPEAK AT LIMITS OF ADMISSIBLE VOLTAGE
0OWER CONSUMPTION QUIESCENT APPROX 7
ENERGIZED APPROX 7
"RIDGING TIME DURING FAILURESHORTCIRCUIT
OF AUXILIARY VOLTAGE MS AT 5
RATED
6DC
4ECHNICAL DATA3$ 6
# ' #
(EAVY DUTY COMMAND CONTACTS
#OMMAND TRIP RELAYS NUMBER OR DEPENDING ON MODEL
#ONTACTS PER RELAYS ./
3WITCHING CAPACITY -!+% 76!
"2%!+ 76!
3WITCHING VOLTAGE 6
0ERMISSIBLE CURRENT ! CONTINUOUS
! FOR S
3IGNAL CONTACTS
3IGNALALARM RELAYS
#ONTACT PER RELAYS #/
3WITCHING CAPACITY -!+%"2%!+ 76!
3WITCHING VOLTAGE 6
0ERMISSIBLE CURRENT !
"INARY INPUTS NUMBER OR DEPENDING ON MODEL
/PERATING VOLTAGE TO 6DC
#URRENT CONSUMPTION APPROX M! INDEPENDENT OF OPERATING VOLTAGE
3ERIAL INTERFACES
/PERATOR TERMINAL INTERFACE NONISOLATED
#ONNECTION AT THE FRONT POLE SUBMINIATURE CONNECTOR
ACC )3/ FOR CONNECTION OF A PERSONAL COMPUTER
4RANSMISSION SPEED AS DELIVERED "AUD
MIN "AUD MAX "AUD
&LOATING INTERFACE FOR DATA TRANSFER
TO A CONTROL CENTRE OPTIONAL VIA OPTICAL FIBRE
3TANDARDS 0ROTOCOL ACC )%# AND 6$%7:6%)
OR ACC $). SELECTABLE
4RANSMISSION SPEED AS DELIVERED "AUD
MIN "AUD MAX "AUD
4RANSMISSION SECURITY (AMMING DISTANCED
#ONNECTION OPTICAL FIBRE INTEGRATED & 3-! CONNECTOR FOR DIRECT OPTICAL FIBRE
CONNECTION WITH CERAMIC POST
EG GLASS FIBRE ¿M
FOR FLUSH MOUNTED HOUSING AT THE REAR
FOR SURFACE MOUNTED HOUSING ON THE BOTTOM COVER
/PTICAL WAVE LENGTH NM
0ERMISSIBLE LINE ATTENUATION MAX D"
4RANSMISSION DISTANCE MAX KM
.ORMAL SIGNAL POSITION RECONNECTABLE FACTORY SETTING LIGHT OFF
4ECHNICAL DATA3$ 6
# ' #
%LECTRICAL TESTS
)NSULATION TESTS
3TANDARDS )%#
(IGH VOLTAGE TEST ROUTINE TEST K6 RMS (Z
EXCEPT DC VOLTAGE SUPPLY INPUT
(IGH VOLTAGE TEST ROUTINE TEST K6 DC
ONLY DC VOLTAGE SUPPLY INPUT
)MPULSE VOLTAGE TEST TYPE TEST K6 PEAK ¿S * POSITIVE
ALL CIRCUITS CLASS ))) AND NEGATIVE SHOTS AT INTERVALS OF S
%-# TESTS IMMUNITY TYPE TESTS
3TANDARDS )%# )%# PRODUCT STANDARDS
%. GENERIC STANDARD
6$% PART
(IGH FREQUENCY K6 PEAK -(Z Ç ¿S SHOTSS
)%# CLASS ))) DURATION S
%LECTROSTATIC DISCHARGE K6 K6 CONTACT DISCHARGE K6 AIR DISCHARGE
)%# CLASS ))) BOTH POLARITIES P& 2
I
¬
AND )%# CLASS )))
2ADIO FREQUENCY ELECTROMAGNETIC FIELD 6M -(Z TO -(Z
NON MODULATED )%# REPORT CLASS
2ADIOFREQUENCY ELECTROMAGNETIC FIELD 6M -(Z TO -(Z !- K(Z
AMPLITUDE MODULATED )%# CLASS
2ADIOFREQUENCY ELECTROMAGNETIC FIELD PULSE 6M -(Z REPETITION FREQUENCY (Z
MODULATED )%# %.6 CLASS DUTY CYCLE
&AST TRANSIENTS
)%# AND )%# CLASS K6 NS K(Z BURST LENGTH MS
REPETITION RATE MS BOTH POLARITIES 2
I
¬
DURATION MIN
#ONDUCTED DISTURBANCES INDUCED BY
RADIOFREQUENCY FIELDS AMPLITUDE MODULATED 6 K(Z TO -(Z !- K(Z
)%# CLASS )))
0OWER FREQUENCY MAGNETIC FIELD
)%# CLASS )6 !M CONTINUOUS !M FOR S (Z
)%# M4 (Z
%-# TESTS EMISSION TYPE TESTS
3TANDARD %. JGENERIC STANDARD
#ONDUCTED INTERFERENCE VOLTAGE AUX VOLTAGE K(Z TO -(Z
#)302 %. CLASS "
)NTERFERENCE FIELD STRENGTH -(Z TO -(Z
#)302 %. CLASS !
4ECHNICAL DATA3$ 6
# ' #
-ECHANICAL STRESS TESTS
6IBRATION AND SHOCK DURING OPERATION
3TANDARDS )%#
AND )%#
6IBRATION SINUSOIDAL
)%# CLASS (Z TO (Z MM AMPLITUDE
)%# (Z TO (Z G ACCELERATION
SWEEP RATE OCTAVEMIN
CYCLES IN ORTHOGONAL AXES
3HOCK HALF SINE
)%# CLASS ACCELERATION G DURATION MS SHOCKS IN
EACH DIRECTION OF ORTHOGONAL AXES
3EISMIC VIBRATION SINUSOIDAL
)%# CLASS (Z TO (Z MM AMPLITUDE HOR AXIS
)%# (Z TO (Z MM AMPLITUDE VERT AXIS
(Z TO (Z G ACCELERATION HOR AXIS
(Z TO (Z G ACCELERATION VERT AXIS
SWEEP RATE OCTAVEMIN
CYCLE IN ORTHOGONAL AXES
6IBRATION AND SHOCK DURING TRANSPORT
3TANDARDS )%#
AND )%#
6IBRATION SINUSOIDAL
)%# CLASS (Z TO (Z MM AMPLITUDE
)%# (Z TO (Z G ACCELERATION
SWEEP RATE OCTAVEMIN
CYCLES IN ORTHOGONAL AXES
3HOCK HALF SINE
)%# CLASS ACCELERATION G DURATION MS SHOCKS IN
)%# EACH DIRECTION OF ORTHOGONAL AXES
#ONTINUOUS SHOCK HALF SINE
)%# CLASS ACCELERATION G DURATION MS SHOCKS
)%# EACH DIRECTION OF ORTHOGONAL AXES
#LIMATIC STRESS TESTS
0ERMISSIBLE AMBIENT TEMPERATURE
DURING SERVICE #TO #
DURING STORAGE #TO #
DURING TRANSPORT #TO #
3TORAGE AND TRANSPORT WITH STANDARD WORKS PACKAGING
4ECHNICAL DATA3$ 6
# ' #
0ERMISSIBLE HUMIDITY MEAN VALUE PER YEAR RELATIVE HUMIDITY
ON DAYS PER YEAR RELATIVE HUMIDITY
#ONDENSATION NOT PERMISSIBLE
7E RECOMMEND THAT ALL UNITS ARE INSTALLED SUCH THAT THEY ARE NOT SUBJECTED TO DIRECT SUNLIGHT NOR TO LARGE TEM
PERATURE FLUCTUATIONS WHICH MAY GIVE RISE TO CONDENSATION
3ERVICE CONDITIONS
4HE RELAY IS DESIGNED FOR USE IN INDUSTRIAL ENVIRON
MENT FOR INSTALLATION IN STANDARD RELAY ROOMS AND
COMPARTMENTS SO THAT WITH PROPER INSTALLATION ELEC
TROMAGNETIC COMPATIBILITY %-# IS ENSURED 4HE
FOLLOWING SHOULD ALSO BE HEEDED
!LL CONTACTORS AND RELAYS WHICH OPERATE IN THE
SAME CUBICLE OR ON THE SAME RELAY PANEL AS THE
DIGITAL PROTECTION EQUIPMENT SHOULD AS A RULE BE
FITTED WITH SUITABLE SPIKE QUENCHING ELEMENTS
!LL EXTERNAL CONNECTION LEADS IN SUBSTATIONS FROM
K6 UPWARDS SHOULD BE SCREENED WITH A
SCREEN CAPABLE OF CARRYING POWER CURRENTS AND
EARTHED AT BOTH SIDES .O SPECIAL MEASURES ARE
NORMALLY NECESSARY FOR SUBSTATIONS OF LOWER VOLT
AGES
)T IS NOT PERMISSIBLE TO WITHDRAW OR INSERT INDIVIDU
AL MODULES UNDER VOLTAGE )N THE WITHDRAWN CONDI
TION SOME COMPONENTS ARE ELECTROSTATICALLY EN
DANGERED DURING HANDLING THE STANDARDS FOR
ELECTROSTATICALLY ENDANGERED COMPONENTS MUST
BE OBSERVED 4HE MODULES ARE NOT ENDANGERED
WHEN PLUGGED IN
7!2.).' 4HE RELAY IS NOT DESIGNED FOR USE IN RESI
DENTIAL COMMERCIAL OR LIGHTINDUSTRIAL ENVIRONMENT
AS DEFINED IN %.
$ESIGN
(OUSING 80 REFER TO 3ECTION
$IMENSIONS REFER TO 3ECTION
7EIGHT
IN HOUSING FOR SURFACE MOUNTING APPROX KG
IN HOUSING FOR FLUSH MOUNTING APPROX KG
$EGREE OF PROTECTION ACC TO %.
(OUSING )0
4ERMINALS )0
)0 FOR CUBICLE INSTALLATION THE DEGREE OF PROTECTION REQUIRED FOR THE POINT OF INSTALLATION MUST BE ENSURED BY THE CUBICLE
4ECHNICAL DATA3$ 6
# ' #
,INE DIFFERENTIAL PROTECTION
3ETTING RANGESSTEPS
#URRENT THRESHOLD )
RELEASE BY LOCAL CURRENT
))
. LINE
TO STEPS
$IFFERENTIAL CURRENT ))
. LINE
TO STEPS
4RIP DELAY TIME 4 S TO S STEPS S
0ICKUP CHARACTERISTICS REFER TO &IGURE
3ECOND HARMONIC RESTRAINT )
F.
)
F.
TO
$ROPOFF RATIO APPROX TIMES PICKUP )
STAB
!LL CURRENT VALUES ARE BASED ON SYMMETRICAL CURRENT AND STANDARD CT CONNECTION ACCORDING TO &IGURE
4IMES
0ICKUP TIME WITH DOUBLEENDED INFEED
WITH X SETTING VALUE APPROX MS TO MS
$ROPOFF TIME APPROX MS
ADDITIONAL DROPOFF DELAY TIME S TO S STEPS S
4OLERANCES WITH PRESET PARAMETERS UNDER REFERENCE CONDITIONS
LOCAL PICKUP LIMIT OF THEORETICAL VALUE BUT MIN |)
.
DIFFERENTIAL CURRENT OF THEORETICAL VALUE BUT MIN |)
.
)NFLUENCE VARIABLES
PILOT WIRE RESISTANCE APPROX PER ¬LOOP RESISTANCE
AUXILIARY VOLTAGE IN RANGE
5
(
5
(.
TEMPERATURE IN RANGE
^#
AMB
^# +
FREQUENCY IN RANGE
FF
.
0ILOT WIRES
QUANTITY
PREFERABLY SYMMETRICAL TELEPHONE PAIRS
WITH ¬KM LOOP RESISTANCE AND
N&KM CAPACITANCE
ASYMMETRY CORECORE AT (Z MAX
MAX LOOP RESISTANCE ¬
PERMISSIBLE INDUCED LONGITUDINAL VOLTAGE
DIRECT CONNECTION OF THE PILOT WIRES K6 BUT MAX OF THE TEST VOLTAGE OF
THE PILOT CORES
CONNECTION VIA BARRIER TRANSFORMERS K6 BUT MAX OF THE TEST VOLTAGE OF
THE PILOT CORES
AND MAX OF THE TEST VOLTAGE OF
THE BARRIER TRANSFORMERS
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