In industries we have different types of loads viz. resistive, inductive & capacitive. These loads have different characteristics while in operation and affect the electical system there by causing huge electrical energy loss to consumer as well as nation. Out of these loads inductive load is the most prominent in causing major energy losses if not checked and corrected timely.
In inductive loads the voltage & current are never in phase with each other. Sometime volage is lagging behind and some its current that lags behind the volatge. When the current lags behind the voltage by certain angle, power factor comes into the pictutre or in otherwords power factor is the ratio of real power (kW) to apparent power (kVA). In an electric power system, a load with a low power factor draws more current than a load with a high power factor for the same amount of useful power transferred. The higher currents increase the energy lost in the distribution system, and require larger wires and other equipment. Because of the costs of larger equipment and wasted energy, electrical utilities will usually charge a higher cost to industrial or commercial customers where there is a low power factor. So the consumer has to check at his/her end that the power factor of their plant or electrical system must not go down. This checking is done manually by installing power factor meters and recoding the data on daily basis. If there is any low value of power factor then immediate remedial actions are taken to bring it back to certail good level or near to 1. But manual checking is very tiresome and not worth for big power consumers as a low power factor or few minutes can cause they a huge penality by SEBs.

So now Automatic Power Factor Controllers are beingg used to controll the power factor in auto mode. These automatic power factor controllers are installed near the system panel and conneted with electrical system/machine of which power factor is to be monitored and corrected. These power factor controller check the system and switch On or OFF the capacitor bank(s) to maintain a preset value of the power factor for the electrical system.

Softbitonline being in the design & development of microproccessor based elctronic devices has come us with an intelligent automatic power factor controller for the industry. This is a state of the are solid state device with 12 relay contacts to give commands to capacitor banks to maintain the preset value of power factor.

	Connection Diagram - Automatic Power Factor Controller
	Features of Intelligent Automatic Power Factor Controller: