What is the power factor of an alternator at no load? March 3, 2018 by DWQA Questions › Category: Alternator & Synchronous Motor › What is the power factor of an alternator at no load? 0 Vote Up Vote Down admin Staff asked 6 years ago 1 Answers 0 Vote Up Vote Down admin Staff answered 6 years ago Answer: At no load Synchronous Impedance of the alternator is responsible for creating angle difference. So it should be zero lagging like inductor.