Synchronous Motors The ratio of starting torque to running torque in a synchronous motor is Infinity One Two Zero Infinity One Two Zero ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a practical synchronous motor will occur when the torque angle is about _____ 75° 45° 0° 30° 75° 45° 0° 30° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor which loss varies with load ? Windage loss Bearing friction loss Copper loss Core loss Windage loss Bearing friction loss Copper loss Core loss ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor of synchronous motor is excited with direct current when the motor _____ None of the listed here Is at standstill Approches half synchronous speed Approches synchronous speed None of the listed here Is at standstill Approches half synchronous speed Approches synchronous speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The standard full-load power factor ratings for synchronous motors are unity or zero zero or 0.8 leading unity or 0.8 leading unity or 0.8 lagging unity or zero zero or 0.8 leading unity or 0.8 leading unity or 0.8 lagging ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The duration of sudden short-circuit test on a synchronous motor is usually about one hour None of these one second one minute one hour None of these one second one minute ANSWER DOWNLOAD EXAMIANS APP
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