雷によるUHV送電線2回線事故の事例解析
雷によるUHV送電線2回線事故の事例解析
カテゴリ: 論文誌(論文単位)
グループ名: 【B】電力・エネルギー部門
発行日: 2013/08/01
タイトル(英語): Case Study on Double-Circuit Lightning Fault of UHV Transmission Line
著者名: 成田 知巳(東京電力(株)),太田 浩(東京電力(株)),財満 英一(東京電力(株)),石井 勝(東京大学生産技術研究所)
著者名(英語): Tomomi Narita (Tokyo Electric Power Company), Hiroshi Ota (Tokyo Electric Power Company), Eiichi Zaima (Tokyo Electric Power Company), Masaru Ishii (Institute of Industrial Science, University of Tokyo)
キーワード: UHV,送電線,雷サージ,架空地線,EMTP UHV,transmission line,lightning surge,overhead ground wire,EMTP
要約(英語): The Tokyo Electric Power Company, Inc (TEPCO) plans UHV power network system in Japan in order to meet the steadily increasing demand for electricity. Four-hundred kilometer UHV-designed double-circuit transmission lines have already been constructed and are now operated at 500kV. Double-circuit flashovers on the UHV minami-iwaki transmission line occurred the first time with successful re-closing of the circuit in 2006. In this paper, we report on the melted OPGW500mm2, lightning location system (JDLN), oscillograph, and the phenomenon analyzed by using EMTP. The results are as follows: (1) Double-circuit flashovers on the UHV minami-iwaki transmission line occurred for the first time. The overhead ground wire (OPGW500mm2) was melted by lightning. (2) According to the oscillograph, the fault was occurred at the phase of 270 degrees. (3) Lightning peak current was about +265kA by using JLDN. The melted component wires of OPGW500mm2 were caused by the lightning, and the amount of melted wires was estimated at 3 wires in 1L, 4 wires in 2L. (4) From the result of EMTP analysis, the lightning peak current was +265kA, and the rise time was 2.5μs~3.5μs. It shows that EMTP result doesn't contradict the lightning current estimated by JLDN.
本誌: 電気学会論文誌B(電力・エネルギー部門誌) Vol.133 No.8 (2013)
本誌掲載ページ: 685-689 p
原稿種別: 論文/日本語
電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/133/8/133_685/_article/-char/ja/
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