Synchronous Motors The magnitude of field flux in a 3-phase synchronous motor Varies with power factor Varies with the load Remains constant at all loads Varies with speed Varies with power factor Varies with the load Remains constant at all loads Varies with speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The percentage slip in case of a synchronous motor is 0.005 1 zero 0.01 0.005 1 zero 0.01 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Mostly, synchronous motors are of Smooth cylindrical type machines Alternator type machines Salient pole type machines Induction type machines Smooth cylindrical type machines Alternator type machines Salient pole type machines Induction type machines ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a 3-phase synchronous motor, the negative phase sequence exists when the motor is None of these supplied with unbalanced voltage under-loaded over-loaded None of these supplied with unbalanced voltage under-loaded over-loaded ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An important advantage of a synchronous motor over wound round induction motor is that None of these its speed is independent of supply frequency its power factor may be varied at will its speed may be controlled more easily None of these its speed is independent of supply frequency its power factor may be varied at will its speed may be controlled more easily ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor is generally ______ times its full-load torque. 5 to 10 1.25 to 3.5 0.5 6 to 9 5 to 10 1.25 to 3.5 0.5 6 to 9 ANSWER DOWNLOAD EXAMIANS APP
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