Synchronous Motors When a synchronous motor is on no load, the torque angle is about ________ 0° electrical 30° electrical 45° electrical 90° electrical 0° electrical 30° electrical 45° electrical 90° electrical ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor runs at only one speed because it ______ Is a doubly fed machine Has no losses Has a damper winding None of the listed here Is a doubly fed machine Has no losses Has a damper winding None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Damper winding in a synchronous motor________ Serves to start the 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 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If the field circuit of an unloaded salientpole synchronous motor gets suddenly open-circuited, then it runs at a very high speed it continues to run at the same speed the motor stops it runs at a slower speed it runs at a very high speed it continues to run at the same speed the motor stops it runs at a slower speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An over excited synchronous motor behaves as _____ A resistor None of the listed here A capacitor An inductor A resistor None of the listed here A capacitor An inductor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous capacitor is An over excited synchronous motor running without mechanical load An over excited synchronous motor driving mechanical load An ordinary static capacitor bank None of the listed here An over excited synchronous motor running without mechanical load An over excited synchronous motor driving mechanical load An ordinary static capacitor bank None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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