)NSTALLATION INSTRUCTIONS
3*
6
# ' #
#HECKING THE CONNECTIONS
7ARNING
3OME OF THE FOLLOWING TEST STEPS ARE CAR
RIED OUT IN PRESENCE OF HAZARDOUS VOLT
AGES 4HEY SHALL BE PERFORMED BY QUALIFIED
PERSONNEL ONLY WHICH IS THOROUGHLY FAMILIAR
WITH ALL SAFETY REGULATIONS AND PRECAUTION
ARY MEASURES AND PAY DUE ATTENTION TO
THEM
.ON OBSERVANCE CAN RESULT IN SEVERE PER
SONAL INJURY
"EFORE INITIAL ENERGIZATION WITH SUPPLY VOLTAGE THE
RELAY SHALL BE SITUATED IN THE OPERATING AREA FOR AT
LEAST TWO HOURS IN ORDER TO ENSURE TEMPERATURE
EQUALIZATION AND TO AVOID HUMIDITY INFLUENCES AND
CONDENSATION
3WITCH OFF THE CIRCUIT BREAKERS FOR THE DC SUPPLY
AND THE VOLTAGE TRANSFORMER CIRCUITS
#HECK THE CONTINUITY OF ALL THE CURRENT AND VOLTAGE
TRANSFORMER CIRCUITS AGAINST THE PLANT AND CONNEC
TION DIAGRAMS
C
!RE THE CURRENT TRANSFORMERS CORRECTLY
EARTHED
C
!RE THE POLARITIES OF THE CURRENT TRANSFORMER
CONNECTIONS CONSISTENT
C
)S THE PHASE RELATIONSHIP OF THE CURRENT TRANS
FORMERS CORRECT
C
!RE THE VOLTAGE TRANSFORMERS CORRECTLY EARTHED
C
!RE THE POLARITIES OF THE VOLTAGE TRANSFORMER CIR
CUITS CORRECT
C
)S THE PHASE RELATIONSHIP OF THE VOLTAGE TRANS
FORMERS CORRECT
C
)S THE POLARITY OF THE EARTH CURRENT TRANSFORM
ERS CORRECT
)F TEST SWITCHES HAVE BEEN FITTED IN THE SECONDARY
CIRCUITS CHECK THEIR FUNCTION PARTICULARLY THAT IN
THE TEST POSITION THE CURRENT TRANSFORMER SEC
ONDARY CIRCUITS ARE AUTOMATICALLY SHORT CIRCUITED
%NSURE THAT THE MINIATURE SLIDE SWITCH ON THE FRONT
PLATE IS IN THE /&&
e
w
POSITION REFER &IGURE
&IT A DC AMMETER IN THE AUXILIARY POWER CIRCUIT
RANGE APPROX ! TO !
#LOSE THE BATTERY SUPPLY CIRCUIT BREAKER CHECK
POLARITY AND MAGNITUDE OF VOLTAGE AT THE TERMINALS
OF THE UNIT OR AT THE CONNECTOR MODULE
4HE MEASURED CURRENT CONSUMPTION SHOULD COR
RESPOND TO APPROXIMATELY 7 4RANSIENT MOVE
MENT OF THE AMMETER POINTER ONLY INDICATES THE
CHARGING CURRENT OF THE STORAGE CAPACITORS
0UT THE MINIATURE SLIDE SWITCH OF THE FRONT PLATE IN
THE /. POSITION
4HE UNIT STARTS UP AND ON
COMPLETION OF THE RUN UP PERIOD THE GREEN ,%$
ON THE FRONT COMES ON THE RED ,%$ GETS OFF AFTER AT
MOST SEC
/PEN THE CIRCUIT BREAKER FOR THE DC POWER SUPPLY
2EMOVE DC AMMETER RECONNECT THE AUXILIARY
VOLTAGE LEADS
#LOSE THE VOLTAGE TRANSFORMER MCB SECONDARY
CIRCUIT
#HECK THE DIRECTION OF PHASE ROTATION AT THE RELAY
TERMINALS CLOCKWISE
/PEN THE MCBS FOR VOLTAGE TRANSFORMER SECOND
ARY CIRCUITS AND DC POWER SUPPLY
#HECK THROUGH THE TRIPPING CIRCUITS TO THE CIRCUIT
BREAKER
#HECK THROUGH THE CONTROL WIRING TO AND FROM OTH
ER DEVICES AND TO THE SWITCHING DEVICES OF THE
SWITCHGEAR
#HECK THE SIGNAL CIRCUITS
2ECLOSE THE PROTECTIVE MCBS
www
. ElectricalPartManuals
. com