@thesis{thesis,
		author={Hajar  Ibnu and Rulin  Vella Marta},
		title ={ANALISA SETTING RELE ARUS LEBIH DAN RELE GANGGUAN TANAH PADA TRAFO 150KV/20KV DI GARDU INDUK SOLOK},
		year={2018},
		url={http://156.67.221.169/763/},
		abstract={Electric power is one of the basic needs of the community at this time, so to guarantee the quality of service, reliable electricity is needed. So one of the efforts that can be done is to minimize the disruption that occurs in the electric power system. Thus, a calculation and analysis planning from the calculation of short circuit current is needed to create coordination of Over Current Relay (OCR) protection and Groung Fault Relay (GFR) both on the feeder side, incoming 20 kV and 150 kV side. OCR is an electrical power device that protects against overcurrent interference. GFR is an electric power device that protects against ground phase disturbances. This thesis uses a quantitative method, where data collected in the form of numbers, processing and using formulas and results in the form of numbers. Coordination of OCR and GFR settings for ground and phase - ground disturbances can be seen that the relay working time on the feeder side is faster than the working time on the incoming and 150kV sides. Likewise, the greater the flow of disturbances, the more time the relay's working time and vice versa. The farther the distance of the fault location, the longer the relay work time will be and the relay work time and the 150kV side.}
		}