Synchronous Motors In a synchronous motor, the magnitude of stator back emf depends on _____ Load on the motor Speed of the rotor Dc excitation only Both the speed and rotor flux Load on the motor Speed of the rotor Dc excitation only Both the speed and rotor flux ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Most of the synchronous motors are _______ power factor metors. 0.5 leading Unity 0.8 leading 0.8 lagging 0.5 leading Unity 0.8 leading 0.8 lagging ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor develop maximum power when load angle is 60° 120° 45° 90° 60° 120° 45° 90° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor working at leading power factor can be used as Phase advancer Noise generator Voltage booster Mechanical synchronizer Phase advancer Noise generator Voltage booster Mechanical synchronizer ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous motors are generally used in application requiring _______ Variable speed Infrequent starting Sudden application of heavy loads Frequent stopping Variable speed Infrequent starting Sudden application of heavy loads Frequent stopping ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The construction of a synchronous motor resembles a rotary converter an alternator a series motor an induction motor a rotary converter an alternator a series motor an induction motor ANSWER DOWNLOAD EXAMIANS APP