Q.

In a synchronous motor, the synchronizing power come into action when 

  • ARotor speed either exceeds or falls below the synchronous speed
  • BRotor speed is equal to synchronous speeds
  • CRotor speed falls below the synchronous speed 
  • DRotor speed exceeds the synchronous speed
Correct Answer : (A)

Rotor speed either exceeds or falls below the synchronous speed

Hints :

In a synchronous motor, the synchronizing power come into action when Rotor speed either exceeds or falls below the synchronous speed.

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