Synchronous Motors An important advantage of a synchronous motor over wound round induction motor is that its speed is independent of supply frequency None of these its speed may be controlled more easily its power factor may be varied at will its speed is independent of supply frequency None of these its speed may be controlled more easily its power factor may be varied at will ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When the synchronous motor runs at synchronous speed, the voltage induced in the damper winding is _____ minimum Maximum Zero None of the listed here minimum Maximum Zero None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous motor always run at The synchronous speed More than synchronous speed None of the listed here Less than synchronous speed The synchronous speed More than synchronous speed None of the listed here Less than synchronous speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with low value short circuit ratio has Good voltage regulation Lower stability limit High stability limit Good speed regulation Good voltage regulation Lower stability limit High stability limit Good speed regulation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor is generally ______ times its full-load torque. 0.5 6 to 9 5 to 10 1.25 to 3.5 0.5 6 to 9 5 to 10 1.25 to 3.5 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When pull-out torque occurs in a synchronous motor, the poles of the rotor are _______ Coincident with statorbpoles Mid way between N and S poles of stator None of the listed here 45° (electrical) behind stator poles Coincident with statorbpoles Mid way between N and S poles of stator None of the listed here 45° (electrical) behind stator poles ANSWER DOWNLOAD EXAMIANS APP
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