If_a_transformer_is_provided_with_differentially_connected_relay._To_p – McqOptions

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1.	If_a_transformer_is_provided_with_differentially_connected_relay._To_prevent_the_mal_operation_of_the_relay,_the_relay_restraining_coil_is_biased_with_______________$
A.	3rd harmonic
B.	2nd harmonic
C.	7th harmonic
D.	5th harmonic
Answer» C. 7th harmonic

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