Synchronous Motors An under excited synchronous motor behaves as_______ None of the listed here A capacitor An inductor A resistor None of the listed here A capacitor An inductor A resistor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Hunting in a synchronous motor can not be due to Variable frequency Windage friction Variable load Variable supply frequency Variable frequency Windage friction Variable load Variable supply frequency ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The angle between the rotor poles and stator poles, in a synchronous motor, is known as Power factor angle Torque angle Synchronising angle Angle of retardation Power factor angle Torque angle Synchronising angle Angle of retardation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The size of a synchronous motor is determined by its _____ kVAR rating kW rating kVA rating None of the listed here kVAR rating kW rating kVA rating None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors For power factor correction, synchronous motors operate at no-load and greatly over-excited fields no-load and under-excited fields normal load with minimum excitation normal load with zero excitation no-load and greatly over-excited fields no-load and under-excited fields normal load with minimum excitation normal load with zero excitation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors As the load is applied to a synchronous motor, the motor takes more armature current because The rotor by shifting its phase backward causes motor to take more current The increased load has to take more current The back e.m.f. decreases causing an increase in motor current The rotor strengthens the rotating field causing more motor current The rotor by shifting its phase backward causes motor to take more current The increased load has to take more current The back e.m.f. decreases causing an increase in motor current The rotor strengthens the rotating field causing more motor current ANSWER DOWNLOAD EXAMIANS APP
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