. When a Schrage motor runs exactly at synchronous speed, then

Question - . When a Schrage motor runs exactly at synchronous speed, then

Options:

A . it behaves, in a sense, like a synchronous motor with compensating winding functioning as dc exciter

B . the speed of the motor field relative to that of the regulating winding becomes zero

C . secondary voltage E2 comes into phase with primary back emf. El.

D . voltage injected from compensating winding into secondary becomes equal and opposite to the secondary induced voltage.

Answer: Option A

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