Synchronous Motors The pull out torque of a practical synchronous motor will occur when the torque angle is about _____ 0° 75° 30° 45° 0° 75° 30° 45° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If one phase of a 3 phase synchronous motor is short circuited, motor Will overheat in spots Will fail to pull into step Will not come upto speed Will refused ro start Will overheat in spots Will fail to pull into step Will not come upto speed Will refused ro start ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The minimum armature current of the synchronous motor corresponds to operation at 0.707 power factor leading unity power factor zero power factor leading 0.707 power factor lagging 0.707 power factor leading unity power factor zero power factor leading 0.707 power factor lagging 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 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 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If a synchronous motor is operating at a supply frequency of 50 cycles/second, then, rotor revolves at ______ 50 cycles/second 25 cycles/ second 100 cycles/second None of the listed here 50 cycles/second 25 cycles/ second 100 cycles/second None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the forced vibrations will be maximum when driving A centrifugal pump A reciprocating air compressor Any of the listed here A centrifugal blower A centrifugal pump A reciprocating air compressor Any of the listed here A centrifugal blower ANSWER DOWNLOAD EXAMIANS APP
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