@thesis{thesis, author={Arifadha Martin and Widyastuti Christine}, title ={KAJIAN KOORDINASI RELAY PROTEKSI DALAM UPAYA OPTIMALISASI PENGGUNAAN RECLOSER PADA PENYULANG TENOR PT.PLN (PERSERO) ULP DEPOK KOTA}, year={2021}, url={http://156.67.221.169/3878/}, abstract={Tenor feeder is one of the feeders that is useful for distributing electricity to consumers. To ensure the reliability of the electric power distribution system, a good and optimal protection coordination system is needed. The method used in determining the recloser coordination with overcurrent relays and ground fault relays is to adjust the current and time on the incoming, outgoing and recloser sides. Based on the results of the review of the protection coordination on the tenor feeder, the overcurrent relay and the ground fault relay were adjusted to obtain a recloser TMS OCR value of 0.199 with a working time of 0.299 seconds, an outgoing TMS OCR of 0.354 with a working time of 0.599 seconds and an incoming TMS OCR of 0.206 with a working time of 1.206 seconds. and the value of TMS GFR recloser is 0.110 with a working time of 0.297 seconds, outgoing TMS GFR 0.213 with a working time of 0.598 seconds and an incoming GFR TMS of 0.308 with a working time of 0.898 seconds. So when a disturbance occurs in front of the recloser, the recloser will work first, and if the recloser fails to work, the outgoing and incoming PMT will work sequentially} }