Analisis Implementasi Sistem Deteksi Gangguan, Isolasi dan Pemulihan dalam Meningkatkan Keandalan Sistem pada Penyulang PA.03-PA.07 (Studi Kasus: PT. PLN Unit Pelaksana Pengatur Distribusi Sumatera Utara)

Abstract

The development of increasing electricity demand from year to year encourages PT. PLN (Persero) to provide electricity with good quality. The reliability of the electricity supply is also an important factor that can be improved by understanding the quality and reliability of service to consumers. One way to improve system reliability is to implement a fault detection, isolation, and recovery system called FDIR (Fault Detection, Isolation, and Restoration), an automated distribution network system that allows faster operation to restore power supply. This study aims to analyze the effect of FDIR implementation on SAIDI (System Average Interruption Duration Index) and ENS (Energy Not Served) on PA.03 and PA.07 feeders. The results showed that after the implementation of FDIR, there was a significant decrease in SAIDI and ENS values in PA.03 and PA.07 feeders. In the PA.03 feeder, there was a 99% decrease in percentage in SAIDI from 0.260868 minutes/customer to 0.002720 minutes/customer. As for the PA.07 feeder, there was a 99% decrease in percentage in SAIDI from 0.194689 minutes/customer to 0.002763 minutes/customer. The decrease in the percentage of ENS also occurred with a 96% decrease in the PA.03 feeder, from 1504.618736 kWh to 60.87351 kWh. In the PA.07 feeder, there was a 95% percentage decrease from 941.44900 kWh to 47.09189 kWh. These results show that FDIR implementation significantly lowers the value of SAIDI and ENS, indicating an increase in system reliability in the feeder studied.