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 zero per cent the torque generated is maximum the motor is said to be fully loaded the excitation is said to be hundred per cent the excitation is said to be zero per cent the torque generated is maximum the motor is said to be fully loaded the excitation is said to be hundred per cent ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor working at leading power factor can be used as Voltage booster Mechanical synchronizer Noise generator Phase advancer Voltage booster Mechanical synchronizer Noise generator Phase advancer ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Leading power factor synchronous motors cost ______ the unity pf motors. None of the listed here Less than More than About the same as None of the listed here Less than More than About the same as ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The size of a synchronous motor decreases with the increase in Flux density Horse power rating Speed All of the listed here Flux density Horse power rating Speed All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The induced e.m.f. in a synchronous motor working on leading power factor will be None of these more than the supply voltage less than the supply voltage equal to the supply voltage None of these more than the supply voltage less than the supply voltage equal to the supply voltage ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The power factor of a synchronous motor is better than that of induction motor because stator supply is relieved of responsibility of producing magnetic field synchronous motor has large air gap mechanical load on the motor can be adjusted synchronous motor runs at synchronous speed stator supply is relieved of responsibility of producing magnetic field synchronous motor has large air gap mechanical load on the motor can be adjusted synchronous motor runs at synchronous speed ANSWER DOWNLOAD EXAMIANS APP
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