Synchronous Motors A synchronous motor is cheaper than 3-phase induction motor for _____ Low speed, high output High speed, low output High speed, high output None of the listed here Low speed, high output High speed, low output High speed, high output None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An over excited synchronous motor is used for Fluctuating loads Power factor corrections Variable speed loads Low torque loads Fluctuating loads Power factor corrections Variable speed loads Low torque loads ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When the synchronous motor is pulled out of synchronism, the stator current _______ Is increased too much Becomes zero Is decreased too much Remains unchanged Is increased too much Becomes zero Is decreased too much Remains unchanged 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 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 induction motor torque in damper winding ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The power factor correction capability of a loaded synchronous motor _____ with the increases in mechanical load. Remains unchanged Decreases Increases None of the listed here Remains unchanged Decreases Increases None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In case one phase of a three-phase synchronous motor is short-circuited the motor will run with excessive vibrations take less than the rated load not start run at 2/3 of synchronous speed run with excessive vibrations take less than the rated load not start run at 2/3 of synchronous speed ANSWER DOWNLOAD EXAMIANS APP
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