By Christopher T. Burke, P.E., Lead Electrical Engineer
Send your question to our team of experts.

Q: I’m confused by the term 'power factor.' Do you have a simple explanation for a guy who’s really not very technical?

Power factor correction can provide benefits to any facility that makes use of electric motors through reduced power consumption and wear on both motors and power grids.

A: Well, for those of you who are a little technical, power factor is the ratio of real power to apparent power -- or, in other words, pF = Real Power/Apparent Power.

Real power is that which performs work for you, and apparent power is the product of the voltage and the total current -- or V x I.

Power factor correction can benefit any facility that uses electric motors through reduced power consumption and wear on both motors and power grids.

Volumes have been written for those of you who need to know precisely what the ‘power factor’ is in a very technical way. For the rest of you -- including you, P.T. -- I provide the following explanation.

Years ago, when we were little, some of us had HO scale race cars that we did our best to demolish by sending them around the track faster than the little pin could hold them. Maybe your kids have them now. When they crashed -- especially when there was a spectacular "crash and burn" -- we were left with the job of reassembling all the parts that could be found.

Inside their tiny little motors were two magnets, which we discovered were...Read More>>>