To prevent maloperation of differentially connected relay while energising a transformer, the relay restraining coil is based with

To prevent maloperation of differentially connected relay while energi

1.	To prevent maloperation of differentially connected relay while energising a transformer, the relay restraining coil is based with
A.	second harmonic current
B.	third harmonic current
C.	fifth harmonic current
D.	seventh harmonic current
Answer» B. third harmonic current

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To prevent maloperation of differentially connected relay while energising a transformer, the relay restraining coil is based with

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