Here's how it works
The KVAR PFC Unit increases power factor, by reducing the
amount of reactive power (kVAR) that the load draws from the utility company. KVAR
PFC Units store the reactive power (kVAR) needed for the creation
of the EMF within the inductive load. As the motor operates, this reactive
power is "pulled" and "pushed" to and from the KVAR
PFC Unit by the motor. The amount of reactive power purchased from
the utility company by power factor optimization has been greatly reduced,
or eliminated.