Analisis Sistem Pengaman Arus Lebih pada Penyulang Abang Akibat Beroperasinya PLTS pada Saluran Distribusi Tegangan Listrik 20 Kv di Karangasem

Abstract? Feeder Abang is one of the feeders in Bali which is a source of electrical energy coming from the substation Amlapura. The connection of new power generation units to the distribution network can increase the short-circuit current if there a short-circuit on the channel. Simulation of short-circuit is done by ETAP. There are two types of simulation, without operation and after operation of solar power generation. The results analysis of short-circuit current without the operation of solar power, obtained the most short-circuit current at point 1 namely bus B217 is 1026 Ampere. While with the operation of solar powerobtained 1224 Ampere. Without the operation of solar power generation the smallest short-circuit current at point 5, namely the B366 bus for 792 A, while with the operation of solar power generation short-circuit fault currents up to 882 A. The rising of short-circuit current make changes in working time of relays at five pointsdisruption. Without the operation of solar power generation, working time of relays changesfrom 0.123 to 0.131 seconds. While with the operation of solar power generation, working time of relays changes from 0.117 to 0.127 seconds.