Synchronous Motors A synchronous motor can operate at Lagging, leading and unity power factors Unity power factor only Lagging power factor only Leading power factor Lagging, leading and unity power factors Unity power factor only Lagging power factor only Leading power factor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the magnitude of stator back emf depends on _____ Dc excitation only Speed of the rotor Load on the motor Both the speed and rotor flux Dc excitation only Speed of the rotor Load on the motor Both the speed and rotor flux ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A 50 Hz synchronous motor runs at 200 rpm. The number of salient poles on the rotor are______ 16 None of the listed here 30 36 16 None of the listed here 30 36 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous capacitor is An over excited synchronous motor running without mechanical load An over excited synchronous motor driving mechanical load An ordinary static capacitor bank None of the listed here An over excited synchronous motor running without mechanical load An over excited synchronous motor driving mechanical load An ordinary static capacitor bank None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The standard full-load power factor ratings for synchronous motors are unity or zero unity or 0.8 lagging zero or 0.8 leading unity or 0.8 leading unity or zero unity or 0.8 lagging zero or 0.8 leading unity or 0.8 leading ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Hunting in a synchronous motor can not be due to Variable load Variable frequency Variable supply frequency Windage friction Variable load Variable frequency Variable supply frequency Windage friction ANSWER DOWNLOAD EXAMIANS APP
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