Synchronous Motors When load on a synchronous motor is increased, its armature current is increased provided, it is ______ Under-excited Normally excited Over-excited All of these Under-excited Normally excited Over-excited All of these ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The minimum armature current of the synchronous motor corresponds to operation at 0.707 power factor lagging zero power factor leading unity power factor 0.707 power factor leading 0.707 power factor lagging zero power factor leading unity power factor 0.707 power factor leading ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can be used as a synchronous capacitor when it is Under excited Under loaded Over excited Over loaded Under excited Under loaded Over excited Over loaded ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The efficiency of a properly designed synchronous motor will usually fall in range 75 to 80% 85 to 95% 99 to 99.5% 60 to 70% 75 to 80% 85 to 95% 99 to 99.5% 60 to 70% ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor will ______ as the field excitation is increased. Decrease Increase Remain unchanged None of the listed here Decrease Increase Remain unchanged None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed of a synchronous motor Increases as the load increases Decreases as the load decreases Always remains constant None of the listed here Increases as the load increases Decreases as the load decreases Always remains constant None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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