ANALISA PENGGUNAAN RECLOSER UNTUK PENGAMAN ARUS LEBIH PADA JARINGAN DISTRIBUSI PT. PLN (PERSERO) ULP SENTANI PENYULANG NANGKA

Abstract

1. PLN (Persero) ULP Sentani is a unit that provides electricity services in Jayapura Regency, as a means of distributing electricity from substations to consumers Protection equipment is needed to overcome short-circuit disturbances, such as OCR, GFR and recloser. The purpose of this final project is to determine the magnitude of the short-circuit interference current, as well as to determine the settings of OCR, GFR and recloser relays in the ULP Sentani Jackfruit Feeder. The calculation results obtained are that the largest short-circuit fault current is caused by a 3-phase short-circuit fault at 0% of the feeder length, which is 2.527,8937 A and is used to calculate the TMS of the overcurrent relay. While the smallest short-circuit fault current is caused by a 1-phase short-circuit fault at 100% of the feeder length, which is 246,38981 A and is used to calculate the TMS of the ground fault relay. The results of the calculation of the short-circuit current at a distance of 1.938 kms, namely 2.171,40016 A, were used to calculate the TMS Recloser.