The duration of sudden snort-circuit test on a synchronous motor is usually about_____________?

Related Mcqs:

A synchronous motor will always stop when:______________?

A. supply voltage fluctuates B. load in motor varies C. excitation winding gets disconnected D. supply voltage frequency changes...

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...

In which of the following motors the stator and rotor magnetic field rotate at the same speed?

A. Universal motor B. Synchronous motor C. Induction motor D. Reluctance motor...

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...

In a synchronous motor, the damping winding is generally used to______________?

A. reduce noise level B. reduce the eddy currents C. provide starting torque only D. prevent hunting and provide the starting torque E. none of the above...