Synchronous Motors As the load is applied to a synchronous motor, the motor takes more armature current because The rotor strengthens the rotating field causing more motor current The increased load has to take more current The back e.m.f. decreases causing an increase in motor current The rotor by shifting its phase backward causes motor to take more current The rotor strengthens the rotating field causing more motor current The increased load has to take more current The back e.m.f. decreases causing an increase in motor current The rotor by shifting its phase backward causes motor to take more current ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous capacitor is an over excited motor running at ________ Half full load None of the listed here Full load No load Half full load None of the listed here Full load No load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Hunting in a synchronous motor cannot be due to variable frequency variable load variable supply voltage windage friction variable frequency variable load variable supply voltage windage friction ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If the field of a synchronous motor is underexcited, the power factor will be zero lagging unity leading zero lagging unity leading ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed of a synchronous motor Increases as the load increases Always remains constant None of the listed here Decreases as the load decreases Increases as the load increases Always remains constant None of the listed here Decreases as the load decreases ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An over excited synchronous motor behaves as _____ A capacitor A resistor None of the listed here An inductor A capacitor A resistor None of the listed here An inductor ANSWER DOWNLOAD EXAMIANS APP
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