why we use CVT (capacitive voltage transformer)in switch yard?
Answer Posted / vishal ingle
CAPACITIVE VOLTAGE TRANSFORMER IN THE EHV YARD IS USED FOR
MAIN PROTECION, METERING AND AS WELL AS FOR COMMUNICATION &
CARRIER AIDID TRIPPING ALSO.
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A TRANSFORMER 440/400V,DELTA/STAR CONNECTED.THE NEUTRAL CONNECTED WITH GROUND CABLE THAT IS DIRECTLY CONNECTED TO THE PANEL,FROM PANEL IT IS CONNECTED EARTH PIT.IS IT RIGHT? IF IT IS RIGHT LEAKAGE CURRENT AFFECTED.SECONDATY IS PROTECTED WITH EARTH LEAKAGE RELAY.
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