6. A REVIEW ON A MINIMIZING PENALTY IN INDUSTRY BY APFC UNIT

- In the industrial division, number of motoring loads is running continuously. These motoring loads generate inductive load. Power consumption is increasing day by day at a very high. So This inductive reactive power causes a reduction in the power factor. The electricity provider has set limits; if the power factor falls below these limits, the industrial consumers will be penali sed. Power capacitors are used to compensate inductive reactance and overcome it. With great accuracy, the APFC device calculates the delay in arrival of the current signal relative to the voltage signal to read t he power factor from line voltage and internal timer. These values are cal ibrated as phase angle and corresponding power facto r. Then the calculation for the requirement of compensation takes place in the motherboard and accordingly different capacitor banks are switched on Keyword s-Power factor.