Synchronous Motors Damper winding in a synchronous motor________ Serves to start the motor Increases hunting of the motor Improve pf of the motor Reduces windage losses Serves to start the motor Increases hunting of the motor Improve pf of the motor Reduces windage losses ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The operating speed of a synchronous motor can be changed to new fixed value by using brakes changing the supply voltage changing the load changing frequency using brakes changing the supply voltage changing the load changing frequency ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The back e.m.f. of a synchronous motor depends on speed load angle load All of these speed load angle load All of these ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor which loss varies with load ? Bearing friction loss Copper loss Windage loss Core loss Bearing friction loss Copper loss Windage loss Core loss ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can be made self starting by providing Damper winding on stator as well as rotor poles Damper winding on stator Damper winding on rotor poles None of the listed here Damper winding on stator as well as rotor poles Damper winding on stator Damper winding on rotor poles None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The size of a synchronous motor decreases with the increase in Speed Flux density All of the listed here Horse power rating Speed Flux density All of the listed here Horse power rating ANSWER DOWNLOAD EXAMIANS APP
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