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: 2012/06/01タイトル(英語): Distribution Surge Arrester Failures due to Winter Lightning and Measurement of Energy Absorption Capability of Arresters著者名: Hitoshi Sugimoto (Hokuriku Electric Power Company), Katsuhiko Shimasaki (Hokuriku Electric Power Company), Hiroyuki Kado (Central Research Institute of Electric Power Industry)著者名(英語): Hitoshi Sugimoto (Hokuriku Electric Power Company), Katsuhiko Shimasaki (Hokuriku Electric Power Company), Hiroyuki Kado (Central Research Institute of Electric Power Industry)キーワード: power distribution line，lightning，winter lightning，surge arrester，energy absorption capability，ZnO element要約(英語): Surge arresters and distribution equipments with zinc-oxide elements are used for lightning protection of overhead power distribution lines in Japan. However, these surge arresters are sometimes damaged by direct lightning strokes, especially in winter. Increasing of surge arrester failures in winter is attributed to a very large electric charge of winter lightning than that of summer lightning. For improvement of surge arresters, we have measured the energy absorption capability of surge arresters using a half cycle of alternating current with a frequency of 50Hz for simulating a winter lightning current. The mean values of arrester failure energy increased in proportion to the volume of zinc-oxide element, however the values of arrester failure energy were quite uneven. We also have observed the aspects of damaged zinc-oxide elements, and have investigated the relationship between the arrester failure energy and the failure types of zinc-oxide elements. From these results, we suggest the improvement of the energy absorption capability of distribution surge arresters, especially for the uniform energy absorption capability.本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.132 No.6 （2012） 特集：冬季雷，正極性雷，高建造物への落雷（ISWL）本誌掲載ページ: 554-559 p原稿種別: 論文／英語電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/132/6/132_554/_article/-char/ja/
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