@thesis{thesis, author={Prakasa Mochamad Bangkit and Sudibyo Uno Bintang}, title ={STUDI PERENCANAAN KOORDINASI RELE ARUS LEBIH DAN RELE GANGGUAN TANAH DISISI MASUKAN DAN KELUARAN PENYULANG ALFA GARDU INDUK BSD I}, year={2018}, url={http://156.67.221.169/949/}, abstract={Medium voltage network is one part of the power distribution system that often experience short circuit interference which causes disruption of power distribution to the consumer. For that we need a protection coordination system that is able to minimize the time and the disturbance that occurs. In this thesis will be reviewed coordination plan of over current relay and ground fault relay on input and output side of Alfa feeder on BSD I Substation. The calculation result from over current relay setting input and output value obtained TMS value = 0,31 and 0, 19, meanwhile the ground fault relay on the input and output side obtained TMS value = 0,22 and 0,1. Coordination of protection of releasing that get show that setting which attached to Substation BSD I in accordance with requirement of protection.} }