Synchronous Motors The speed regulation of a synchronous motor is always Zero 1% 0.5% Positive Zero 1% 0.5% Positive ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor which loss varies with load ? Core loss Windage loss Copper loss Bearing friction loss Core loss Windage loss Copper loss Bearing friction loss ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The armature current of a synchronous motor will be minimum for ______ power factor. Unity 0.8 leading None of the listed here 0.8 lagging Unity 0.8 leading None of the listed here 0.8 lagging ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor is generally ______ times its full-load torque. 1.25 to 3.5 5 to 10 0.5 6 to 9 1.25 to 3.5 5 to 10 0.5 6 to 9 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When load on a synchronous motor is increased, its armature current is increased provided, it is ______ All of these Under-excited Normally excited Over-excited All of these Under-excited Normally excited Over-excited ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Power factor of a synchronous motor is unity when The armature current is zero None of the listed here The armature current is maximum The armature current is minimum The armature current is zero None of the listed here The armature current is maximum The armature current is minimum ANSWER DOWNLOAD EXAMIANS APP
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