)NTRODUCTION3* 6
# ' #
)NTRODUCTION
!PPLICATION
4HE RELAY 3)02/4%# 3* IS USED AS A PROTECTION
CONTROL AND SUPERVISION DEVICE FOR BUS BAR SYSTEMS
ON THE DISTRIBUTION VOLTAGE LEVEL IN PARTICULAR FOR IN
DUSTRIAL APPLICATION 4HE RELAY CONTAINS ALL NECESSARY
FUNCTIONS WHICH ARE NORMALLY REQUIRED FOR PROTEC
TION MONITORING OF THE BREAKER AND DISCONNECTOR PO
SITIONS AND CIRCUIT BREAKER CONTROL FOR A FEEDER OF A
SINGLE OR DOUBLE BUS BAR ON THE DISTRIBUTION VOLTAGE
LEVEL
4HE BASIC FUNCTION IS AN OVERCURRENT TIME PROTECTION
4HIS INVERSE OR DEFINITE TIME OVERCURRENT PROTECTION
WITH STAGES EACH TWO CURRENTTIME STAGES FOR
PHASE AND EARTH CURRENTS IS COMPLEMENTED BY
SUPPLEMENTARY FUNCTIONS LIKE DISTANCE TO FAULT LO
CATION CIRCUIT BREAKER FAILURE PROTECTION UNDERVOL
TAGE AND OVERVOLTAGE PROTECTION UNBALANCED LOAD
PROTECTION AND THERMAL OVERLOAD PROTECTION WITH
START UP TIME MONITOR AND RESTART LOCKOUT FOR USE ON
MOTORS
$EPENDENT ON THE ORDERED VERSION ADDITIONAL FUNC
TIONS ARE AVAILABLE LIKE A DIRECTIONAL OVERCURRENT TIME
PROTECTION A HIGHLY SENSITIVE EARTH FAULT PROTECTION
AND A SINGLE AND MULTI SHOT AUTO RECLOSING FEATURE
FOR OVERHEAD LINES
4HROUGHOUT A FAULT IN THE NETWORK THE INSTANTANEOUS
VALUES ARE STORED FOR A PERIOD OF MAX SECONDS AND
ARE AVAILABLE FOR SUBSEQUENT FAULT ANALYSIS &AULT IN
CEPTION IS TAGGED WITH THE REAL TIME PROVIDED THE IN
TERNAL REAL TIME CLOCK IS AVAILABLE
#ONTINUOUS MONITORING OF THE MEASURED VALUES PER
MITS ANNUNCIATION OF FAULTS IN THE CURRENT TRANSFORMER
CIRCUITS WHICH LEAD TO ASYMMETRY OF THE CURRENTS
#ONTINUOUS PLAUSIBILITY MONITORING OF THE INTERNAL
MEASURED VALUE PROCESSING CIRCUITS AND MONITORING
OF THE AUXILIARY VOLTAGES TO ENSURE THAT THEY REMAIN
WITHIN TOLERANCE ARE OBVIOUSLY INHERENT FEATURES
3ERIAL INTERFACES ALLOW COMPREHENSIVE COMMUNICA
TION WITH OTHER DIGITAL CONTROL AND STORAGE DEVICES
&OR DATA TRANSMISSION A STANDARDIZED PROTOCOL IN AC
CORDANCE WITH )%# AND 6$%7:6%)
IS USED 4HE DEVICE CAN THEREFORE BE INCORPORATED IN
,OCALIZED 3UBSTATION !UTOMATION NETWORKS ,3!
&EATURES
0ROCESSOR SYSTEM WITH POWERFUL BIT MICRO
PROCESSOR
COMPLETE DIGITAL MEASURED VALUE PROCESSING AND
CONTROL FROM DATA ACQUISITION AND DIGITIZING OF THE
MEASURED VALUES UP TO THE TRIP AND CLOSE DECI
SIONS FOR THE CIRCUIT BREAKER
COMPLETE 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 DCDC CONVER
TER
COMPLETE SCOPE OF FUNCTIONS REQUIRED FOR PROTEC
TION AND CONTROL OF A HIGH VOLTAGE FEEDER OF A BUS
BAR
INSENSITIVE AGAINST DC COMPONENTS INRUSH OR
CHARGING AND HIGH FREQUENCY TRANSIENTS IN THE
MEASURED CURRENTS
CIRCUIT BREAKER OPERATION TEST FACILITY BY TEST TRIP
CLOSE CYCLE MODELS WITH AUTO RECLOSURE OR TEST
TRIP OF THE BREAKER
COMPREHENSIVE SUPPLEMENTARY FUNCTIONS
CONTINUOUS CALCULATION OF OPERATIONAL MEASURED
VALUES AND INDICATION ON THE FRONT DISPLAY
SIMPLE SETTING AND OPERATION USING THE INTEGRATED
OPERATION PANEL OR A CONNECTED PERSONAL COMPUT
ER WITH MENU GUIDED SOFTWARE
SWITCH OVER FACILITY FOR USE OF TWO DIFFERENT SETS OF
FUNCTION PARAMETERS
STORAGE OF FAULT DATA STORAGE OF INSTANTANEOUS VAL
UES DURING A FAULT FOR FAULT RECORDING
COMMUNICATION WITH CENTRAL CONTROL AND STORAGE
DEVICES VIA SERIAL INTERFACES IS POSSIBLE VIA OPTION
AL OPTICAL FIBRE CONNECTION
CONTINUOUS MONITORING OF MEASURED VALUES AS
WELL AS HARDWARE AND SOFTWARE OF THE UNIT
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