Power Factor Correction

What is Power Factor Correction and how does it work?

Power Factor Correction (PFC) is the difference between the actual power needed to perform work and the electrical energy needed so the work can be performed. We call power that does the work “Real Power” and the rest reactive power. The difference between real and reactive power is known as power factor.

We can reduce apparent power in electricity by added devices to compensate for poor power factor (see examples on main Power Factor page). If we test and discover how much reactive power is present, we can furnish a properly sized unit to reduce the reactive power from the power company. This reduces the power companies’ losses and reduces the power bill.