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

Related Mcqs:

The synchronous motor is not inherently self-starting because_______________?

A. the force required to accelerate the rotor to the synchronous speed in an instant is absent B. the starting device to accelerate the rotor to near synchronous speed is absent C. a rotating magnetic field does not have enough poles D. the rotating magnetic field is produced by only 50 Hz frequency currents...

Which of the following motors is non-self starting ?

A. D.C. series motor B. synchronous motor C. Squirrel cage induction motor D. Wound round induction motor...

The armature current of the synchronous motor has higher values for_____________?

A. high excitation only B. low excitation only C. both A. and (b) D. none of the above...

The working of a synchronous motor is similar to_____________?

A. gear train arrangement B. transmission of mechanical power by shaft C. distribution transformer D. turbine E. none of the above...

When the voltage applied to a synchronous motor is increased, which of the following will reduce?

A. Stator flux B. Pull in torque C. Both A. and (b) D. None of the above...