Synchronous Motors A 50 Hz synchronous motor runs at 200 rpm. The number of salient poles on the rotor are______ 36 30 16 None of the listed here 36 30 16 None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the rotor copper loss are met by ______ Armature input Motor input Supply lines Dc source Armature input Motor input Supply lines Dc source ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The back e.m.f. of a synchronous motor depends on All of these speed load load angle All of these speed load load angle ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors While running, a synchronous motor is compelled to run at synchronous speed because of _______ Magnetic locking between stator and rotor poles Compulsion due to lenz's law Induced emf in rotor field winding by stator flux Damper winding in its pole faces Magnetic locking between stator and rotor poles Compulsion due to lenz's law Induced emf in rotor field winding by stator flux Damper winding in its pole faces ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed of a synchronous motor Increases as the load increases None of the listed here Decreases as the load decreases Always remains constant Increases as the load increases None of the listed here Decreases as the load decreases Always remains constant ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a synchronous motor is on no load, the torque angle is about ________ 45° electrical 0° electrical 30° electrical 90° electrical 45° electrical 0° electrical 30° electrical 90° electrical ANSWER DOWNLOAD EXAMIANS APP
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