北陸地方の配電線雷故障の季節的および地域的特徴
北陸地方の配電線雷故障の季節的および地域的特徴
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: 2012/01/01
タイトル(英語): Seasonal and Local Characteristics of Lightning Outages of Power Distribution Lines in Hokuriku Area
著者名: 杉本 仁志(北陸電力(株)技術開発研究所),島崎 克彦(北陸電力(株)技術開発研究所)
著者名(英語): Hitoshi Sugimoto (Engineering Research & Development Center, Hokuriku Electric Power Company), Katsuhiko Shimasaki (Engineering Research & Development Center, Hokuriku Electric Power Company)
キーワード: 配電線,雷,雷故障,冬季雷,LLS power distribution line,lightning,lightning outage,winter lightning,LLS
要約(英語): The proportion of the lightning outages in all outages on Japanese 6.6kV distribution lines is high with approximately 20 percent, and then lightning protections are very important for supply reliability of 6.6kV lines. It is effective for the lightning performance to apply countermeasures in order of the area where a large number of the lightning outages occur. Winter lightning occurs in Hokuriku area, therefore it is also important to understand the seasonal characteristics of the lightning outages. In summer 70 percent of the lightning outages on distribution lines in Hokuriku area were due to sparkover, such as power wire breakings and failures of pole-mounted transformers. However, in winter almost half of lightning-damaged equipments were surge arrester failures. The number of the lightning outages per lightning strokes detected by the lightning location system (LLS) in winter was 4.4 times larger than that in summer. The authors have presumed the occurrence of lightning outages from lightning stroke density, 50% value of lightning current and installation rate of lightning protection equipments and overhead ground wire by multiple regression analysis. The presumed results suggest the local difference in the lightning outages.
本誌: 電気学会論文誌B(電力・エネルギー部門誌) Vol.132 No.1 (2012) 特集:平成23年電力・エネルギー部門大会
本誌掲載ページ: 102-108 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/132/1/132_1_102/_article/-char/ja/
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