caa a22 4500 463206347 CHVBK 20180405153127.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s00202-006-0027-1 doi (NATIONALLICENCE)springer-10.1007/s00202-006-0027-1 Ground-fault Location Algorithm for Ungrounded Radial Distribution Systems [Elektronische Daten] [Soon-Ryul Nam, Sang-Hee Kang, Jin-Man Sohn, Jong-Keun Park] This paper proposes a single phase-to-ground fault location algorithm for ungrounded radial distribution systems. The algorithm uses the voltage equation from the relay location to the fault location, which contains three unknown variables: zero-sequence fault current, fault resistance, and fault distance. The zero-sequence fault current can be determined using the zero-sequence relay current. Inserting the zero-sequence fault current into the voltage equation results in an equation that contains only the fault resistance and fault distance. The fault resistance is removed by extracting the components orthogonal to the zero-sequence fault current from the equation and finally the fault distance is estimated. Simulation results indicate that the algorithm performs well regardless of fault resistance and fault distance. Springer-Verlag, 2006 Single phase-to-ground fault nationallicence Fault distance nationallicence Fault resistance nationallicence Ungrounded radial distribution system nationallicence Voltage equation nationallicence Nam Soon-Ryul Next-Generation Power Technology Center and Department of Electrical Engineering, Myongji University, 449-728, Yongin, South Korea aut Kang Sang-Hee Next-Generation Power Technology Center and Department of Electrical Engineering, Myongji University, 449-728, Yongin, South Korea aut Sohn Jin-Man School of Electrical Engineering, Seoul National University, 151-742, Seoul, South Korea aut Park Jong-Keun School of Electrical Engineering, Seoul National University, 151-742, Seoul, South Korea aut Electrical Engineering Springer-Verlag 89/6(2007-06-01), 503-508 0948-7921 89:6<503 2007 89 202 https://doi.org/10.1007/s00202-006-0027-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00202-006-0027-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nam Soon-Ryul Next-Generation Power Technology Center and Department of Electrical Engineering, Myongji University, 449-728, Yongin, South Korea aut NATIONALLICENCE 700 1- Kang Sang-Hee Next-Generation Power Technology Center and Department of Electrical Engineering, Myongji University, 449-728, Yongin, South Korea aut NATIONALLICENCE 700 1- Sohn Jin-Man School of Electrical Engineering, Seoul National University, 151-742, Seoul, South Korea aut NATIONALLICENCE 700 1- Park Jong-Keun School of Electrical Engineering, Seoul National University, 151-742, Seoul, South Korea aut NATIONALLICENCE 773 0- Electrical Engineering Springer-Verlag 89/6(2007-06-01), 503-508 0948-7921 89:6<503 2007 89 202 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer