Synchronous Motors The ratio of starting torque to running torque in a synchronous motor is Zero Two One Infinity Zero Two One Infinity 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 An important advantage of a synchronous motor over wound round induction motor is that its speed is independent of supply frequency its speed may be controlled more easily its power factor may be varied at will None of these its speed is independent of supply frequency its speed may be controlled more easily its power factor may be varied at will None of these ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If one phase of a 3 phase synchronous motor is short circuited, motor Will not come upto speed Will fail to pull into step Will refused ro start Will overheat in spots Will not come upto speed Will fail to pull into step Will refused ro start Will overheat in spots ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed regulation of a synchronous motor is always 0.5% 1% Zero Positive 0.5% 1% Zero Positive ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In case one phase of a three-phase synchronous motor is short-circuited the motor will run at 2/3 of synchronous speed not start take less than the rated load run with excessive vibrations run at 2/3 of synchronous speed not start take less than the rated load run with excessive vibrations ANSWER DOWNLOAD EXAMIANS APP
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