When the excitation of an unloaded salient pole synchronous motor suddenly gets disconnected
A. the motor stops
B. it runs as a reluctance motor at the same speed
C. it runs as a reluctance motor at a lower speed
D. none of the above
Answer:B
When the excitation of an unloaded salient pole synchronous motor suddenly gets disconnected
A. the motor stops B. it runs as a reluctance motor at the same speed C. it runs as a reluctance motor at a lower speed D. none of the above
Explanation: Total power in salient pole synchronous motor is equal to the sum of air gap power and reluctance power.