Power Factor Analyze Using Capacitor Bank

Gan, Chun Hsiang (2005) Power Factor Analyze Using Capacitor Bank. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The usage of electricity has increased dramatically parallel with the development of our country as an industrial country. The largest electric user is the industrial sector. In this context, the power factor of the users plays a major role in determining the efficient usage of electricity. When the power factor value is low, the current required from the generator is high. Therefore, Tenaga Nasional Berhad (TNB) must generate a large amount of electricity to meet the demand of users. In this case, the power system will be inefficient because there will be more losses of power and voltage drop at utilities, cable and transformers. Because of this, 1NB has set a regulation that minimum power factor for low and medium voltages users is 0.85 and a high voltage user is 0.90. If the user fails to comply they will have to pay a power factor penalty along with their monthly bill. Therefore, power factor correction to the value required by 1NB is important to reduce both energy and economic waste. One alternative way to perform power factor corrections is to use capacitor bank. This project is conducted in order to analyze the energy and economic savings if capacitor bank is used for power factor correction. The analysis was done on a small TNB power system of industrial area on Nilai, Negeri Sembilan with the line voltage at 1lKv.

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