MY QUATION IS ABT THE MAIN POWER TRANSFORMER IN STEEL
PLANT , I WISH TO KNOW THAT WHY TRANSFORMER PROTECTION NOT
TRIP AS CABLES ON THE SECONDAY SIDE IS WATER COOLED.
TRANFORMER DETAIL
NORMAL KVA--150 KVA
PRIMARY VOLTAGE --34.5 KV
SEC.NO-LOAD VOLTAGE---1.290-908-690V ( WITH PRIMARY DELTA
CONNECTED)
CONNECTION--D/d (EXTERNAL CLOSED)
CONSTANT RATEING FROM--1.290-908V
CONSTANT CURRENT FROM--908-690
VECTOR GROUP--D III
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Answer Posted / k.prakashchandra
As pure water is a bad conductor of electricity
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