Study of Replacing Capacitors in the Electric Power Network of Indopintan Sukses Mandiri Semarang

Abstract

This paper presents a study of the relocation of capacitors to the point of loading of the electrical network that has poor performance such as low voltage profiles and high power losses. This study takes the case of the electricity network of Indopintan Sukses Mandiri Semarang. The purpose of this study is to obtain an electrical system scenario that can reduce power losses that have an impact on the cost of electricity bills. There are two stages that need to be done, namely the load flow analysis process on the electricity network, followed by the fuzzy inference process to determine the optimal location of the capacitor. The results of the study indicate an increase in the average voltage profile of each main distribution panel from 0.982 pu to 0.987 pu as well as a decrease in total real power losses and total blind power by 3 KW and 7 KVAR. This reduction in power losses can save electricity bill costs of Rp. 29,295,367.2 per year.