Synchronous Motors In order to to reverse the direction of a synchronous motor, _______ None of the listed here Change supply frequency Reduce dc field excitation to zero Interchange any two stator lines None of the listed here Change supply frequency Reduce dc field excitation to zero Interchange any two stator lines ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The back e.m.f. of a synchronous motor depends on All of these speed load angle load All of these speed load angle load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor delivers reactive power when ______ Normally excited Under excited Over excited None of the listed here Normally excited Under excited Over excited None of the listed here 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. The same as More than Less than None of the listed here The same as More than Less than None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The angle between the rotor poles and stator poles, in a synchronous motor, is known as Angle of retardation Power factor angle Torque angle Synchronising angle Angle of retardation Power factor angle Torque angle Synchronising angle ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor which loss varies with load ? Bearing friction loss Windage loss Core loss Copper loss Bearing friction loss Windage loss Core loss Copper loss ANSWER DOWNLOAD EXAMIANS APP
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