Synchronous Motors A synchronous motor can be made self starting by providing Damper winding on stator as well as rotor poles None of the listed here Damper winding on rotor poles Damper winding on stator Damper winding on stator as well as rotor poles None of the listed here Damper winding on rotor poles Damper winding on stator ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors While running, a synchronous motor is compelled to run at synchronous speed because of _______ Induced emf in rotor field winding by stator flux Magnetic locking between stator and rotor poles Compulsion due to lenz's law Damper winding in its pole faces Induced emf in rotor field winding by stator flux Magnetic locking between stator and rotor poles Compulsion due to lenz's law Damper winding in its pole faces ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An over excited synchronous motor behaves as _____ A resistor A capacitor An inductor None of the listed here A resistor A capacitor An inductor None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The power factor of a synchronous motor is better than that of induction motor because mechanical load on the motor can be adjusted stator supply is relieved of responsibility of producing magnetic field synchronous motor runs at synchronous speed synchronous motor has large air gap mechanical load on the motor can be adjusted stator supply is relieved of responsibility of producing magnetic field synchronous motor runs at synchronous speed synchronous motor has large air gap ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a synchronous motor is pulled out of synchronism, the stator current ________ Remains unchanged Is increased too much Is decreased too much Become zero Remains unchanged Is increased too much Is decreased too much Become zero ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The minimum armature current of the synchronous motor corresponds to operation at 0.707 power factor leading 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 ANSWER DOWNLOAD EXAMIANS APP
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