Answer / r

for transmission lines - impedance , reactance and
diffrential,over current relays are used
transformer- buchoz relay,diffrential relay,over current
etc are used
for finding internal faults - diffrential relays are used

Answer / rasi

NO#1 IS CORRECT.BUT ALSO,OVER CURRENT&EARTH FAULT
PROTECTION ARE USING ALL RELAYS(TRAFO,FEEDER,ETC).AND REF
PROTECTION USING IN TRANSFORMER

Answer / ravi vaya

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