Synchronous Motors When load on an over-excited or under excited synchronous motor is increased, rate of change of its armature current as compared with that of power factor is less twice more equal less twice more equal ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The power factor correction capability of a loaded synchronous motor _____ with the increases in mechanical load. None of the listed here Increases Decreases Remains unchanged None of the listed here Increases Decreases Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The construction of a synchronous motor ressembles An alternator A series motor An induction motor A rotary converter An alternator A series motor An induction motor A rotary converter ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When pull-out torque occurs in a synchronous motor, the poles of the rotor are _______ None of the listed here Mid way between N and S poles of stator Coincident with statorbpoles 45° (electrical) behind stator poles None of the listed here Mid way between N and S poles of stator Coincident with statorbpoles 45° (electrical) behind stator poles ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Small synchronous motors are started by _______ Damper winding Variable frequency source Pony motor None of the listed here Damper winding Variable frequency source Pony motor None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The operating speed of a synchronous motor can be changed to new fixed value by changing the supply voltage changing the load changing frequency using brakes changing the supply voltage changing the load changing frequency using brakes ANSWER DOWNLOAD EXAMIANS APP
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