Synchronous Motors For power factor correction, synchronous motors operate at no-load and under-excited fields no-load and greatly over-excited fields normal load with minimum excitation normal load with zero excitation no-load and under-excited fields no-load and greatly over-excited fields normal load with minimum excitation normal load with zero excitation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor copper losses, in a synchronous motor, are met by armature input c. source supply lines motor input armature input c. source supply lines motor input ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor develop maximum power when load angle is 60° 90° 120° 45° 60° 90° 120° 45° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Small synchronous motors are started by _______ None of the listed here Pony motor Variable frequency source Damper winding None of the listed here Pony motor Variable frequency source Damper winding ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor with large air gap has A higher synchronizing power which makes the machine less sensitive to load variations A higher value of stability limit A small value of inherent regulation All of the listed here A higher synchronizing power which makes the machine less sensitive to load variations A higher value of stability limit A small value of inherent regulation All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The mechanical power developed by a synchronous motor is ______ stator voltage. Invesely proportional to Independent of Directly proportional to square of Directly proportional to Invesely proportional to Independent of Directly proportional to square of Directly proportional to ANSWER DOWNLOAD EXAMIANS APP
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