Synchronous Motors In a synchronous motor, the rotor copper loss are met by ______ Motor input Supply lines Dc source Armature input Motor input Supply lines Dc source Armature input ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor which loss varies with load ? Copper loss Core loss Windage loss Bearing friction loss Copper loss Core loss Windage loss Bearing friction loss ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The duration of sudden short circuit test on synchronous motor is usually about One second One hour One minute None of the listed here One second One hour One minute None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A 50 Hz synchronous motor runs at 200 rpm. The number of salient poles on the rotor are______ 30 16 36 None of the listed here 30 16 36 None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When pull-out torque occurs in a synchronous motor, the poles of the rotor are _______ Coincident with statorbpoles None of the listed here Mid way between N and S poles of stator 45° (electrical) behind stator poles Coincident with statorbpoles None of the listed here Mid way between N and S poles of stator 45° (electrical) behind stator poles ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The magnitude of field flux in a 3-phase synchronous motor Varies with speed Remains constant at all loads Varies with power factor Varies with the load Varies with speed Remains constant at all loads Varies with power factor Varies with the load ANSWER DOWNLOAD EXAMIANS APP
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