APFC provides compensation for reactive power based on the variations in load conditions to maintain the target power factor. In APFC switching the capacitor is significant as it helps to retain the power factor, the switching is controlled by a Power Factor Controller device that uses the CT feedback to determine the kvar required at any instant. The Power Factor Controller also provides information on the network characteristics such as Active, reactive power, Voltage, power factor for the user to understand. The system generally comprises of Power Capacitors, Controller, firing circuits.The switching system for this depends on the type of compensation.

APFC provides compensation for reactive power based on the variations in load conditions to maintain the target power factor. In APFC switching the capacitor is significant as it helps to retain the power factor, the switching is controlled by a Power Factor Controller device that uses the CT feedback to determine the kvar required at any instant. The Power Factor Controller also provides information on the network characteristics such as Active, reactive power, Voltage, power factor for the user to understand. The system generally comprises of Power Capacitors, Controller, firing circuits.The switching system for this depends on the type of compensation.