Re: How to Calculate the PF Factor of a mcahine Home › Electrical Engineering Forum › General Discussion › How to Calculate the PF Factor of a mcahine › Re: How to Calculate the PF Factor of a mcahine 2011/04/19 at 7:12 pm #11980 TRIPURARIParticipant p=v*i*cos@ where p=power v=voltage i=current cos@=power factor