The maximum power developed in a synchronous motor occurs at a coupling angle of____________?

Related Mcqs:

In case one phase of a three-phase synchronous motor is short-circuited the motor will____________?

A. not start B. run at 2/3 of synchronous speed C. run with excessive vibrations D. take less than the rated load...

The mechanical displacement of the rotor with respect to the stator, in polyphase multipolar synchronous motors running at full load, is of the order of_____________?

A. zero degree B. two degrees C. five degrees D. ten degrees...

If one-phase of a 3-phase synchronous motor is short-circuited, motor will ______________?

A. will refuse to start B. will overheat in spots C. will not come upto speed D. will fail to pull into step...

The percentage slip in case of a synchronous motor is____________?

A. 1% B. 100% C. 0.5% D. zero...

Power factor of a synchronous motor is unity when_____________?

A. the armature current is maximum B. the armature current is minimum C. the armature current is zero D. none of the above...