In a synchronous motor, the breakdown torque is__________?

Related Mcqs:

The standard full-load power factor ratings for synchronous motors are___________?

A. zero or 0.8 leading B. unity or 0.8 lagging C. unity or 0.8 leading D. unity or zero...

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...

A synchronous motor can be started by________?

A. pony motor B. D.C. compound motor C. providing damper winding D. any of the above...

A synchronous machine with large air gap has______________?

A. a higher value of stability limit B. a small value of inherent regulation C. a higher synchronizing power which makes the machine less sensitive to load variations D. all of the above...

The maximum torque which a synchronous motor will develop at rest for any angular position of the rotor, at rated stator supply voltage and frequency, is known as__________?

A. locked-rotor torque B. synchronous torque C. pull up torque D. reluctance torque...