A salient pole synchronous motor is running at no load. Its field current is switched off. The motor will
A. Come to stop.
B. Continue to run at synchronous speed.
C. Continue to run at a speed slightly more than the synchronous speed.
D. Continue to run at a speed slightly less than the synchronous speed.
Answer:B
A salient pole synchronous motor is running at no load. Its field current is switched off. The motor will
A. Come to stop. B. Continue to run at synchronous speed. C. Continue to run at a speed slightly more than the synchronous speed. D. Continue to run at a speed slightly less than the synchronous speed.