Synchronous Motors A synchronous motor develop maximum power when load angle is 120° 90° 60° 45° 120° 90° 60° 45° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the maximum power developed depends on all of the following except direction of rotation supply voltage rotor excitation maximum value of coupling angle direction of rotation supply voltage rotor excitation maximum value of coupling angle ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a synchronous motor is pulled out of synchronism, the stator current ________ Become zero Is increased too much Is decreased too much Remains unchanged Become zero Is increased too much Is decreased too much Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An over excited synchronous motor is used for Variable speed loads Power factor corrections Fluctuating loads Low torque loads Variable speed loads Power factor corrections Fluctuating loads Low torque loads ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the magnitude of stator back emf depends on _____ Both the speed and rotor flux Speed of the rotor Dc excitation only Load on the motor Both the speed and rotor flux Speed of the rotor Dc excitation only Load on the motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor of synchronous motor is excited with direct current when the motor _____ Approches half synchronous speed None of the listed here Is at standstill Approches synchronous speed Approches half synchronous speed None of the listed here Is at standstill Approches synchronous speed ANSWER DOWNLOAD EXAMIANS APP
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