Synchronous Motors The duration of sudden short-circuit test on a synchronous motor is usually about one hour one minute None of these one second one hour one minute None of these one second ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The percentage slip in case of a synchronous motor is zero 0.01 0.005 1 zero 0.01 0.005 1 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The maximum speed variation in a 3 phase synchronous motor is Zero 2 percent 10 percent 4 percent Zero 2 percent 10 percent 4 percent ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors For power factor correction, synchronous motors operate at normal load with minimum excitation normal load with zero excitation no-load and under-excited fields no-load and greatly over-excited fields normal load with minimum excitation normal load with zero excitation no-load and under-excited fields no-load and greatly over-excited fields ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The power factor of a synchronous motor is better than that of induction motor because mechanical load on the motor can be adjusted synchronous motor has large air gap synchronous motor runs at synchronous speed stator supply is relieved of responsibility of producing magnetic field mechanical load on the motor can be adjusted synchronous motor has large air gap synchronous motor runs at synchronous speed stator supply is relieved of responsibility of producing magnetic field ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed regulation of a synchronous motor is always Positive 1% 0.5% Zero Positive 1% 0.5% Zero ANSWER DOWNLOAD EXAMIANS APP
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