@thesis{thesis, author={Ispranyoto Edy and Oktaviani Ika Nur}, title ={Resetting Ulang Relai Jarak Transmission Line Jatirangon – Miniatur Karena Adanya Overhaul di GIS Miniatur}, year={2018}, url={http://156.67.221.169/1417/}, abstract={Faults on high-voltage overhead transmission line can be caused by short-circuit current 1 phase ground , 3 phase and lightning surge. This fault occurs on GIS Miniatur conductor can be done with jumper baypass from GI Jatirangon transmission line to GIS miniatur transformator 1 for the electrical power transmission to function as intended .Configuration of transmission line GI Jatirangon ? GIS Miniatur has changed, so needed change in setting of the protection system, so protection system can be operate in new configuration. Main protection used in GI Jatirangon transmission line to GIS miniatur transformator 1 is distance relay. Distance relay is one of relay protection can operate based on conductor impedance which is divided into 3 zones protection. Based on calculated, in normal condition, setting value are : Z1 = 0,493 ? with T1 = 0 second, Z2 = 0,75 ? with T2 = 0,4 second, Z3 = 0,814 ? with T3 = 1,6 second. And for condition after jumper baypass, setting value are : Z1 = 8,415 ? with T1 = 0 second, Z2 = disable, Z3 = disable.} }