Synchronous Motors A synchronous motor is cheaper than 3-phase induction motor for _____ High speed, low output High speed, high output None of the listed here Low speed, high output High speed, low output High speed, high output None of the listed here Low speed, high output ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a synchronous motor is on no load, the torque angle is about ________ 30° electrical 90° electrical 0° electrical 45° electrical 30° electrical 90° electrical 0° electrical 45° electrical ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A 50 Hz synchronous motor runs at 200 rpm. The number of salient poles on the rotor are______ 36 None of the listed here 30 16 36 None of the listed here 30 16 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with low value short circuit ratio has Good voltage regulation Good speed regulation High stability limit Lower stability limit Good voltage regulation Good speed regulation High stability limit Lower stability limit ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor will always stop when Supply voltage fluctuates Supply voltage frequency changes Excitation winding gets disconnected Load in motor varies Supply voltage fluctuates Supply voltage frequency changes Excitation winding gets disconnected Load in motor varies ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor of synchronous motor is excited with direct current when the motor _____ None of the listed here Is at standstill Approches half synchronous speed Approches synchronous speed None of the listed here Is at standstill Approches half synchronous speed Approches synchronous speed ANSWER DOWNLOAD EXAMIANS APP
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