@thesis{thesis, author={RIFQIANSYAH MUHAMMAD and Suwarno Suwarno}, title ={SETTING KOORDINASI OCR & GFR DI INCOMING FEEDER, OUTGOING FEEDER DAN GARDU DISTRIBUSI E146 PENYULANG PANTRI GARDU INDUK CIPINANG}, year={2019}, url={http://156.67.221.169/1646/}, abstract={Electric power distribution system will not be separated from a short circuit interference on the network either caused by internal or external factors. Interference that might occur can cause damage to distribution equipment and electrical loads if the interference is not immediately isolated by the protection device. One of the main protections in electric power networks is overcurrent relays. In determining the overcurrent relay settings, between one relay point and another relay must be interconnected so that all protection relays are well coordinated. The electric power distribution system at PT PLN (PERSERO) UP3 Pondok Kopi at pantri feeders occurs with network relocation. For this reason, the re-planning of overcurrent relay coordination in the electric power distribution system at PT PLN (PERSERO) UP3 Pondok Kopi is done. The study was conducted starting with the collection of electrical data needed. Then make a single line diagram plan. Then determine the location of the overcurrent relay and calculate the value of the short circuit current at the closest point. After all data has been collected and used for all overcurrent relay settings, then the relay adjustment calculation is performed and the overcurrent relay coordination curve is described. The calculation results of the relay setting value in the distribution substation are for OCR the primary current value is 300 A, the TMS is 0.11 and the time is 0.3 seconds. For GFR the primary current value is 77.17 A, the TMS is 0.1 and the time is 0.3 seconds. The relay in the Outgoing feeder is for OCR the primary current value is 300 A, the TMS is 0.26 and the time is 0.7 seconds. For GFR the primary current value is 77.1, the TMS is 0.23 and the time is 0.7 seconds. The relay in the Incoming feeder is for OCR the primary current value is 1732 A, the TMS is 0.33 and the time is 1.1. For GFR the primary current value is 95.49 A, the TMS is 0.37 and the time is 1.1 seconds.} }