Synchronous Motors The power factor of a synchronous motor is better than that of induction motor because synchronous motor has large air gap stator supply is relieved of responsibility of producing magnetic field mechanical load on the motor can be adjusted synchronous motor runs at synchronous speed synchronous motor has large air gap stator supply is relieved of responsibility of producing magnetic field mechanical load on the motor can be adjusted synchronous motor runs at synchronous speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can develop synchronous torque only at synchronous speed when under loaded below or above synchronous speed while over-excited only at synchronous speed when under loaded below or above synchronous speed while over-excited ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Hunting in a synchronous motor can not be due to Variable frequency Windage friction Variable supply frequency Variable load Variable frequency Windage friction Variable supply frequency Variable load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Damper winding in a synchronous motor________ Increases hunting of the motor Serves to start the motor Reduces windage losses Improve pf of the motor Increases hunting of the motor Serves to start the motor Reduces windage losses Improve pf of the motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A three phase synchronous motor will have No slip rings Three slip rings Two slip rings One slip rings No slip rings Three slip rings Two slip rings One slip rings ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The direction of rotation of a synchronous motor can be reversed by reversing, Current to field winding None of the listed here Polarity of rotor poles Supply phase sequence Current to field winding None of the listed here Polarity of rotor poles Supply phase sequence ANSWER DOWNLOAD EXAMIANS APP
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