Synchronous Motors While running, a synchronous motor is compelled to run at synchronous speed because of _______ Magnetic locking between stator and rotor poles Induced emf in rotor field winding by stator flux Damper winding in its pole faces Compulsion due to lenz's law Magnetic locking between stator and rotor poles Induced emf in rotor field winding by stator flux Damper winding in its pole faces Compulsion due to lenz's law ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Hunting in a synchronous motor cannot be due to variable frequency variable supply voltage variable load windage friction variable frequency variable supply voltage variable load windage friction ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The power factor of a synchronous motor is better than that of induction motor because synchronous motor runs at synchronous speed stator supply is relieved of responsibility of producing magnetic field mechanical load on the motor can be adjusted synchronous motor has large air gap synchronous motor runs at synchronous speed stator supply is relieved of responsibility of producing magnetic field mechanical load on the motor can be adjusted synchronous motor has large air gap ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous capacitor is an over excited motor running at ________ No load Half full load None of the listed here Full load No load Half full load None of the listed here Full load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The magnitude of field flux in a 3-phase synchronous motor Varies with power factor Varies with the load Remains constant at all loads Varies with speed Varies with power factor Varies with the load Remains constant at all loads Varies with speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors For the same active power consumed, the stator current of a synchronous motor is ______ that of a 3 phase induction motor. More than Less than None of the listed here The same as More than Less than None of the listed here The same as ANSWER DOWNLOAD EXAMIANS APP
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