Synchronous Motors A 50 Hz synchronous motor runs at 200 rpm. The number of salient poles on the rotor are______ 16 None of the listed here 36 30 16 None of the listed here 36 30 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When the synchronous motor runs at synchronous speed, the voltage induced in the damper winding is _____ None of the listed here Zero Maximum minimum None of the listed here Zero Maximum minimum ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An over excited synchronous motor is used for Low torque loads Power factor corrections Fluctuating loads Variable speed loads Low torque loads Power factor corrections Fluctuating loads Variable speed loads ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor is generally ______ times its full-load torque. 5 to 10 6 to 9 1.25 to 3.5 0.5 5 to 10 6 to 9 1.25 to 3.5 0.5 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors While starting a salient pole synchronous motor by induction motor action and connecting field discharge resistance across field, starting and accelerting torque is produced by All of the listed here eddy current and hysteresis torque in pole faces induction motor torque in field winding induction motor torque in damper winding All of the listed here eddy current and hysteresis torque in pole faces induction motor torque in field winding induction motor torque in damper winding ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with low value of short-circuit ratio has high stability limit good voltage regulation lower stability limit good speed regulation high stability limit good voltage regulation lower stability limit good speed regulation ANSWER DOWNLOAD EXAMIANS APP
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