@thesis{thesis, author={FATORAHMAN M LUTFI and Hajar Ibnu}, title ={SISTEM PROTEKSI OVER CURRENT RELAY PADA JARINGAN TRANSMISI ANTARA GI CIBINONG 150 Kv DAN GI SEMEN BARU 150 kV}, year={2018}, url={http://156.67.221.169/1904/}, abstract={The protection system is a very important component in the electric power distribution system. With its good reliability, the distribution of electricity will be better, one of which can minimize system disruption quickly, precisely and accurately. One important component in the protection system is the protection relay. Over current relays (OCR) are relays that are used to detect fault currents coming through current transformers (CT) and the fault current will make the relay pass (PMT OPEN) with the specified setting and setting time, so the equipment is awake from the current interference. This research was conducted to determine the system of over current (OCR) relay work on the medium voltage air line transmission network (SUTT). The over current test aims to determine the reliability of the relay installed at each substation based on inverse standard characteristics} }