Synchronous Motors A synchronous motor runs at speed ranging from ______ 1800 to 3600 rpm None of the listed here 3600 to 6000 rpm 150 to 1800 rpm 1800 to 3600 rpm None of the listed here 3600 to 6000 rpm 150 to 1800 rpm ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An under excited synchronous motor behaves as_______ A capacitor A resistor An inductor None of the listed here A capacitor A resistor An inductor None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor of synchronous motor is excited with direct current when the motor _____ None of the listed here Approches synchronous speed Approches half synchronous speed Is at standstill None of the listed here Approches synchronous speed Approches half synchronous speed Is at standstill 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 induction motor torque in damper winding induction motor torque in field winding eddy current and hysteresis torque in pole faces All of the listed here induction motor torque in damper winding induction motor torque in field winding eddy current and hysteresis torque in pole faces All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An over excited synchronous motor is used for Low torque loads Variable speed loads Power factor corrections Fluctuating loads Low torque loads Variable speed loads Power factor corrections Fluctuating loads ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors By which of the following methods the constant speed of a synchronous motor can be changed to new fixed value ? By changing the applied voltage By changing the supply frequency By interchanging any two phases By changing the load By changing the applied voltage By changing the supply frequency By interchanging any two phases By changing the load ANSWER DOWNLOAD EXAMIANS APP
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