A synchronous machine with low value of short-circuit ratio has___________?

Related Mcqs:

A three-phase synchronous motor will have_____________?

A. no slip-rings B. one slip-ring C. two slip-rings D. three slip-rings...

The maximum value of torque that a synchronous motor can develop without losing its synchronism, is known as_____________?

A. slip torque B. pull-out torque C. breaking torque D. synchronising torque...

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...

Under which of the following conditions hunting of synchronous motor is likely to occur?

A. Periodic variation of load B. Over-excitation C. Over-loading for long periods D. Small and constant load...

By which of the following methods the constant speed of a synchronous motor can be changed to new fixed value ?

A. By changing the supply frequency B. By interchanging any two phases C. By changing the applied voltage D. By changing the load...