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김현홍(H.H. Kim),추성호(S.H. Choo),채명석(M.S. Chae),박종배(J.B. Park),신중린(J.R. Shin) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.11
This paper presents a new one-terminal numerical algorithm for fault location estimation and for faults recognition. The proposed algorithm are derived for the case of most frequent single-phase line to ground fault in the time domain. The arc voltage wave shape is modeled numerically on the basis of a great number of arc voltage records obtained by transient recorder. From the calculated arc voltage amplitude it can make a decision whether the fault is permanent of transient. In this paper the algorithm uses a very short data window and enables fast fault detection and classification for real-time transmission line protection. To test the validity of the proposed algorithm the Electro-Magnetic Transient Program(EMTP/ATP) is used.