@thesis{thesis,
		author={Budiman  Masgunarto and Ledyowati  Ledyowati},
		title ={PERANCANGAN INSTALASI PROTEKSI DIFERENSIAL TRAFO BAY 150/20 kV GI DURI KOSAMBI},
		year={2017},
		url={http://156.67.221.169/962/},
		abstract={The design of a differential protection installation on the transformer bay is necessary to secure the transformer which is the main equipment in a GI of short circuit interference that occurs within the transformer security zone. Differential relay works by comparing the incoming and outgoing currents and these relays work instantly. In this thesis will be discussed design of this differential protection installation includes design of differential protection system where there are electrical equipment that must be selected to be safe meet the requirements of K3. So the installation is safe from possible threats. Electrical equipment selection should take into account the requirements set forth in PUIL. The selection of electrical appliances set in the PUIL includes factors in terms of good, functioning, standard, must be capable of running short circuit at least one second, according to the loading, its use must be appropriate, and the environment of installation is installed. In the design of the installation of differential protection should be reliable, selective, fast operating and sensitive. In the installation of differential protection electrical appliances should only be installed and maintained by employees who have electrical expertise certificates, because the installation is located in the locked electrical workspace and should only be entered at least two people.}
		}