Synchronous Motors Damper winding in a synchronous motor________ Improve pf of the motor Increases hunting of the motor Reduces windage losses Serves to start the motor Improve pf of the motor Increases hunting of the motor Reduces windage losses Serves to start the motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can develop synchronous torque when under loaded while over-excited below or above synchronous speed only at synchronous speed when under loaded while over-excited below or above synchronous speed only at synchronous speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The minimum armature current of the synchronous motor corresponds to operation at 0.707 power factor leading 0.707 power factor lagging unity power factor zero power factor leading 0.707 power factor leading 0.707 power factor lagging unity power factor zero power factor leading ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An over excited synchronous motor is used for Power factor corrections Variable speed loads Fluctuating loads Low torque loads Power factor corrections Variable speed loads Fluctuating loads Low torque loads ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor working at leading power factor can be used as Noise generator Voltage booster Phase advancer Mechanical synchronizer Noise generator Voltage booster Phase advancer Mechanical synchronizer ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a synchronous motor is on no load, the torque angle is about ________ 90° electrical 45° electrical 30° electrical 0° electrical 90° electrical 45° electrical 30° electrical 0° electrical ANSWER DOWNLOAD EXAMIANS APP
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