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 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 induction motor torque in damper winding ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a synchronous motor is on no load, the torque angle is about ________ 90° electrical 30° electrical 0° electrical 45° electrical 90° electrical 30° electrical 0° electrical 45° electrical ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the rotor copper loss are met by ______ Motor input Dc source Armature input Supply lines Motor input Dc source Armature input Supply lines ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Power factor of a synchronous motor is unity when The armature current is zero The armature current is maximum None of the listed here The armature current is minimum The armature current is zero The armature current is maximum None of the listed here The armature current is minimum ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An over excited synchronous motor is used for Fluctuating loads Power factor corrections Low torque loads Variable speed loads Fluctuating loads Power factor corrections Low torque loads Variable speed loads ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor develops maximum power when load angle is 120° 45° 60° 90° 120° 45° 60° 90° ANSWER DOWNLOAD EXAMIANS APP
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