In a biased differential relay the bias is defined as a ratio of

1.	In a biased differential relay the bias is defined as a ratio of
A.	Number of turns of restraining and operating coil
B.	Operating coil current and restraining coil current
C.	Fault current and operating coil current
D.	Fault current and restraining coil current
Answer» C. Fault current and operating coil current

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