A synchronous motor is running on a load with normal excitation. Now if the load on the motor is increased

Synchronous Motors 02/09/2021

A. power factor as well as armature current will decrease
B. power factor as well as armature current will increase
C. power factor will increase but armature current will decrease
D. power factor will decrease and armature current will increase

Related Mcqs:

    Which of the following resistances can be measured by conducting insulation resistance test on a synchronous motor ?
    A. Phase to phase winding resistance B. Stator winding to earthed frame C. Rotor winding to earthed shaft D. All of the above...
    In a synchronous motor, the magnitude of stator back e.m.f. Eb depends on___________?
    A. load on the motor B. d.c. excitation only C. both the speed and rotor flux D. none of the above...
    A synchronous motor can be started by________?
    A. pony motor B. D.C. compound motor C. providing damper winding D. any of the above...
    Riunting in a synchronous motor takes place___________?
    A. when supply voltage fluctuates B. when load varies C. when power factor is unity D. motor is under loaded...
    In a synchronous motor, damper windings are provided on____________?
    A. stator frame B. rotor shaft C. pole faces D. none of the above...

Leave a Reply

Your email address will not be published. Required fields are marked *