To limit the operating temperature an electrical machine should have proper____________?

Related Mcqs:

A synchronous motor working at leading power factor can be used as____________?

A. voltage booster B. phase advancer C. noise generator D. mechanical synchronizer...

The armature current of the synchronous motor

A. has large values for low excitation i niy B. has large values for high excitation only C. has large values for low and high excitation D. any of the above...

A synchronous motor running with normal excitation adjusts to load increases essentially by increase in______________?

A. back e.m.f. B. armature current C. power factor D. torque angle...

If load (or torque) angle of a 4-pole synchronous motor is 6° electrical, its value in mechanical degrees is__________?

A. 2 B. 3 C. 4 D. 6...

Which of the following methods is used to start a synchronous motor?

A. Damper winding B. Star-delta starter C. Damper winding in conjunction with star-delta starter D. Resistance starter in the armature circuit...