Synchronous Motors When pull-out torque occurs in a synchronous motor, the poles of the rotor are _______ 45° (electrical) behind stator poles None of the listed here Coincident with statorbpoles Mid way between N and S poles of stator 45° (electrical) behind stator poles None of the listed here Coincident with statorbpoles Mid way between N and S poles of stator ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors For the same active power consumed, the stator current of a synchronous motor is ______ that of a 3 phase induction motor. Less than More than None of the listed here The same as Less than More than None of the listed here The same as ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The back emf in the stator of a synchronous motor depends on None of the listed here Rotor speed Rotor excitation Flux density None of the listed here Rotor speed Rotor excitation Flux density ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a synchronous motor is pulled out of synchronism, the stator current ________ Is decreased too much Remains unchanged Is increased too much Become zero Is decreased too much Remains unchanged Is increased too much Become zero ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor develop maximum power when load angle is 60° 90° 45° 120° 60° 90° 45° 120° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Hunting in a synchronous motor cannot be due to windage friction variable frequency variable load variable supply voltage windage friction variable frequency variable load variable supply voltage ANSWER DOWNLOAD EXAMIANS APP
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