An over-excited synchronous motor takes__________?

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 maximum speed variation in a 3-phase synchronous motor is____________?

A. 10 per cent B. 6 per cent C. 4 per cent D. 2. per cent E. zero...

In a synchronous motor, the magnitude of stator back e.m.f. & depends on_______________?

A. d.c. excitation only B. speed of the motor C. load on the motor D. both the speed and rotor flux...

An over excited synchronous motor is used for____________?

A. fluctuating loads B. variable speed loads C. low torque loads D. power factor corrections...

A synchronous motor is running with normal excitation. When the load is increased, the armature current drawn by it increases because

A. speed of the motor is reduced B. power factor is decreased C. Eb (back e.m.f.) becomes less than V (applied voltage) D. Er (net resultant voltage) in armature is increased E. none of the above...