A synchronous motor connected to infinite bus-bars has at constant full load, 100% excitation and unity power factor. On changing the excitation only, the armature current will have_____________?

A. leading power factor with under-excitation

B. lagging power factor with over-excitation

C. no change of power factor

D. leading power factor with over-excitation
Be the first to comment if anything wrong with this mcq
Your comment successfully submitted!
It will automatically posted after review and approval by our staff member.