Synchronous Motors A 50 Hz synchronous motor runs at 200 rpm. The number of salient poles on the rotor are______ 16 36 30 None of the listed here 16 36 30 None 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 less than the supply voltage None of these equal to the supply voltage more than the supply voltage less than the supply voltage None of these equal to the supply voltage more than the supply voltage ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If the field of a synchronous motor is underexcited, the power factor will be unity leading zero lagging unity leading zero lagging ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with large air gap has all of the listed here a higher synchronizing power which makes the machine less sensitive to load variations a higher value of stability limit a small value of inherent regulation all of the listed here a higher synchronizing power which makes the machine less sensitive to load variations a higher value of stability limit a small value of inherent regulation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor is generally ______ times its full-load torque. 5 to 10 0.5 6 to 9 1.25 to 3.5 5 to 10 0.5 6 to 9 1.25 to 3.5 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The back emf in the stator of a synchronous motor depends on Flux density None of the listed here Rotor speed Rotor excitation Flux density None of the listed here Rotor speed Rotor excitation ANSWER DOWNLOAD EXAMIANS APP
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