The effect of increasing the load on a synchronous motor running with normal excitation is to___________?

Synchronous Motors 22/10/2021

A. decrease both armature current and power factor
B. decrease armature current but increase power factor
C. increase armature current but decrease power factor
D. increase both its armature current and power factor

Related Mcqs:

    For V-curves for a synchronous motor the graph is drawn between:_______________?
    A. armature current and power factor B. terminal voltage and load factor C. power factor and field current D. field current and armature current...
    A synchronous motor develops maximum power when load angle is____________?
    A. 45° B. 60° C. 90° D. 120°...
    In which of the following motors the stator and rotor magnetic field rotate at the same speed?
    A. Universal motor B. Synchronous motor C. Induction motor D. Reluctance motor...
    A synchronous motor can operate at____________?
    A. lagging power factor only B. leading power factor only C. unity power factor only D. lagging, leading and unity power factors...
    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...

Leave a Reply

Your email address will not be published.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