What will be the power factor of arc? All Questions › Category: Switchgear And Protection › What will be the power factor of arc? 0 Vote Up Vote Down Chetan Shidling Staff asked 4 years ago I need short information. 1 Answers 0 Vote Up Vote Down Chetan Shidling Staff answered 4 years ago The arc current in the circuit breaker will be in phase with the arc voltage.