Synchronous Motors In a synchronous motor it the back e.m.f. generated in the armature at noload is approximately equal to the applied voltage, then the excitation is said to be hundred per cent the torque generated is maximum the excitation is said to be zero per cent the motor is said to be fully loaded the excitation is said to be hundred per cent the torque generated is maximum the excitation is said to be zero per cent the motor is said to be fully loaded ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor of a synchronous motor is Nonsalient pole type Salient pole type None of the listed here Identical to that of a dc motor Nonsalient pole type Salient pole type None of the listed here Identical to that of a dc motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed of a synchronous motor Always remains constant Increases as the load increases Decreases as the load decreases None of the listed here Always remains constant Increases as the load increases Decreases as the load decreases None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the magnitude of stator back emf depends on _____ Dc excitation only Speed of the rotor Both the speed and rotor flux Load on the motor Dc excitation only Speed of the rotor Both the speed and rotor flux Load on the motor 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 Damper winding in a synchronous motor________ Improve pf of the motor Reduces windage losses Serves to start the motor Increases hunting of the motor Improve pf of the motor Reduces windage losses Serves to start the motor Increases hunting of the motor ANSWER DOWNLOAD EXAMIANS APP
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