Synchronous Motors Mostly, synchronous motors are of Induction type machines Alternator type machines Salient pole type machines Smooth cylindrical type machines Induction type machines Alternator type machines Salient pole type machines Smooth cylindrical type machines ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When pull-out torque occurs in a synchronous motor, the poles of the rotor are _______ Mid way between N and S poles of stator None of the listed here Coincident with statorbpoles 45° (electrical) behind stator poles Mid way between N and S poles of stator None of the listed here Coincident with statorbpoles 45° (electrical) behind stator poles ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor working at leading power factor can be used as Voltage booster Phase advancer Noise generator Mechanical synchronizer Voltage booster Phase advancer Noise generator Mechanical synchronizer ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In order to to reverse the direction of a synchronous motor, _______ None of the listed here Interchange any two stator lines Reduce dc field excitation to zero Change supply frequency None of the listed here Interchange any two stator lines Reduce dc field excitation to zero Change supply frequency ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Hunting in a synchronous motor can not be due to Variable frequency Variable supply frequency Windage friction Variable load Variable frequency Variable supply frequency Windage friction Variable load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Damper winding in a synchronous motor________ Serves to start the motor Increases hunting of the motor Reduces windage losses Improve pf of the motor Serves to start the motor Increases hunting of the motor Reduces windage losses Improve pf of the motor ANSWER DOWNLOAD EXAMIANS APP
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