Synchronous Motors Hunting in a synchronous motor cannot be due to variable frequency variable supply voltage windage friction variable load variable frequency variable supply voltage windage friction variable load 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 The direction of rotation of a synchronous motor can be reversed by reversing, Polarity of rotor poles Current to field winding Supply phase sequence None of the listed here Polarity of rotor poles Current to field winding Supply phase sequence None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a practical synchronous motor will occur when the torque angle is about _____ 0° 75° 30° 45° 0° 75° 30° 45° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When load on a synchronous motor is increased, its armature current is increased provided, it is ______ Over-excited Under-excited Normally excited All of these Over-excited Under-excited Normally excited All of these ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The mechanical power developed by a synchronous motor is independent of _________. Torque angle Field excitation Speed Applied stator voltage Torque angle Field excitation Speed Applied stator voltage ANSWER DOWNLOAD EXAMIANS APP
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