so as required capacitors are connected / disconnected to the network. APFC Controllers close loop fast response multi method switching [MMS] algorithm helps system to have close & precise control on power factor. Setups having large electrical loads which are severely inductive in nature, such as motors, large machines, air conditioners, drivers etc. result in a severely lagging power factor. This means loss and wastage of energy and heavy penalties by electricity boards. In case of fixed loads this can be taken care by manual switching of capacitors.

However in case of rapidly varying and scattered loads it becomes difficult to maintain a high power factor by manually switching on/off the capacitors in proportion to variation of load within an installation. This drawback is overcome by using an APFC panel (Automatic Power Factor Correction Panel) which not only maintains a high power factor but also eliminates the need for constant manual intervention.