Abstract
Distribution network is a part of an electric power system that has more intensity of failure than other parts of the power system. This is due to the close distribution network at the load which results in more factors that can be the cause of the failure. The more interference, the worse the reliability index. One effort to improve the feeder reliability index is by connecting Distributed Generation (DG) to feeders. In this study the effect of DG on the reliability index of Malangbong Chocolate (MLBC) feeders will be observed. MLBC is a power secondary substation in the district of Garut in West Java province, Indonesia. The method used in this study is to simulate the reliability of MLBC feeders before and after connecting with DG using the ETAP Power System 16.0 software. The results of the two simulations are then compared to see the effect of DG on the system reliability index. The results show that the SAIFI values before and after using DG connected to bus 4 and bus 5, are 3.8865 and 1.1802 per customer respectively. Whereas the value of SAIDI are 4.3079 and 1.1079 hours per customer in one year respectively. So it can be concluded, the use of DG on feeders can improve the reliability index of the system.
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