Synchronous Motors Hunting in a synchronous motor cannot be due to variable supply voltage windage friction variable frequency variable load variable supply voltage windage friction variable frequency variable load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the magnitude of stator back emf depends on _____ Both the speed and rotor flux Dc excitation only Speed of the rotor Load on the motor Both the speed and rotor flux Dc excitation only Speed of the rotor Load on the motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor delivers reactive power when ______ Over excited Normally excited Under excited None of the listed here Over excited Normally excited Under excited None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If the field of a synchronous motor is underexcited, the power factor will be leading lagging zero unity leading lagging zero unity ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If a synchronous motor is operating at a supply frequency of 50 cycles/second, then, rotor revolves at ______ 50 cycles/second 25 cycles/ second None of the listed here 100 cycles/second 50 cycles/second 25 cycles/ second None of the listed here 100 cycles/second 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
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