Improvement of Power Factor for Industrial Plant with Automatic Capacitor Bank

Abstract-This paper is intended to uplift the technological standard of industrial plants. The overall power factor of modern industries is very poor because of inductive loads absorbing reactive power. Especially, industrial plant with variable load conditions has large inductive loads and its power factor is very poor. These industries benefit most from automatic capacitor banks. This bank provides improved power factor, increased voltage level on the load and reduced electric utility bills. Besides, automatic capacitor banks may be able to eliminate kVAR energized at light-load periods and undesirable over-voltages. In most cases, the main reason why a customer installs a capacitor bank is to avoid penalization in the electricity bill. This inappropriate installation without enough study gives rise to a great variety of technical problems. Therefore, the fact that capacitor banks are designed for long-term use should be considered.