Synchronous Motors The duration of sudden short-circuit test on a synchronous motor is usually about one second one hour None of these one minute one second one hour None of these one minute ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The construction of a synchronous motor ressembles An alternator A series motor A rotary converter An induction motor An alternator A series motor A rotary converter An induction motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Mostly, synchronous motors are of Induction type machines Salient pole type machines Smooth cylindrical type machines Alternator type machines Induction type machines Salient pole type machines Smooth cylindrical type machines Alternator type machines ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Damper winding in a synchronous motor________ Reduces windage losses Serves to start the motor Increases hunting of the motor Improve pf of the motor Reduces windage losses Serves to start the motor Increases hunting of the motor Improve pf of the motor 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 Change supply frequency Reduce dc field excitation to zero None of the listed here Interchange any two stator lines Change supply frequency Reduce dc field excitation to zero ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The armature current of a synchronous motor will be minimum for ______ power factor. 0.8 lagging Unity 0.8 leading None of the listed here 0.8 lagging Unity 0.8 leading None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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