Synchronous Motors The direction of rotation of a synchronous motor can be reversed by reversing, Polarity of rotor poles None of the listed here Current to field winding Supply phase sequence Polarity of rotor poles None of the listed here Current to field winding Supply phase sequence ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor runs at only one speed because it ______ Has a damper winding Is a doubly fed machine None of the listed here Has no losses Has a damper winding Is a doubly fed machine None of the listed here Has no losses ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The capacity of a synchronous capacitor is generally in the range of kVAR None of the listed here MVAR VAR kVAR None of the listed here MVAR VAR ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Small synchronous motors are started by _______ Variable frequency source Pony motor Damper winding None of the listed here Variable frequency source Pony motor Damper winding None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When load on a synchronous motor is increased, its armature current is increased provided, it is ______ Under-excited Normally excited All of these Over-excited Under-excited Normally excited All of these Over-excited ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor of synchronous motor is excited with direct current when the motor _____ None of the listed here Is at standstill Approches half synchronous speed Approches synchronous speed None of the listed here Is at standstill Approches half synchronous speed Approches synchronous speed ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS