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 All of the listed here induction motor torque in field winding eddy current and hysteresis torque in pole faces induction motor torque in damper winding All of the listed here induction motor torque in field winding eddy current and hysteresis torque in pole faces ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can operate at Lagging power factor only Unity power factor only Lagging, leading and unity power factors Leading power factor Lagging power factor only Unity power factor only Lagging, leading and unity power factors Leading power factor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When the synchronous motor is pulled out of synchronism, the stator current _______ Is decreased too much Becomes zero Remains unchanged Is increased too much Is decreased too much Becomes zero Remains unchanged Is increased too much ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The ratio of starting torque to running torque in a synchronous motor is One Two Zero Infinity One Two Zero Infinity ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Hunting in a synchronous motor cannot be due to variable supply voltage windage friction variable load variable frequency variable supply voltage windage friction variable load variable frequency ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor delivers reactive power when ______ Under excited Over excited None of the listed here Normally excited Under excited Over excited None of the listed here Normally excited ANSWER DOWNLOAD EXAMIANS APP
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