Synchronous Motors Most of the synchronous motors are _______ power factor metors. 0.8 leading 0.5 leading Unity 0.8 lagging 0.8 leading 0.5 leading Unity 0.8 lagging ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor will always stop when Supply voltage fluctuates Load in motor varies Excitation winding gets disconnected Supply voltage frequency changes Supply voltage fluctuates Load in motor varies Excitation winding gets disconnected Supply voltage frequency changes ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor of synchronous motor is excited with direct current when the motor _____ Approches synchronous speed Is at standstill None of the listed here Approches half synchronous speed Approches synchronous speed Is at standstill None of the listed here Approches half synchronous speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the magnitude of stator back emf depends on _____ Dc excitation only Load on the motor Both the speed and rotor flux Speed of the rotor Dc excitation only Load on the motor Both the speed and rotor flux Speed of the rotor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor of a synchronous motor is Nonsalient pole type Salient pole type None of the listed here Identical to that of a dc motor Nonsalient pole type Salient pole type None of the listed here Identical to that of a dc motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When the synchronous motor runs at synchronous speed, the voltage induced in the damper winding is _____ minimum Zero Maximum None of the listed here minimum Zero Maximum None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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