配電線雷撃時における配電自動化機器への雷電流分流様相

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: 2019/05/01

タイトル(英語): Lightning Current Distribution in Automation System Equipment for Distribution Line due to Direct Lightning Stroke

著者名: 石本　和之（（一財）電力中央研究所 電力技術研究所），原　慎吾（九州電力（株）送配電カンパニー 配電本部），浅川　聡（（一財）電力中央研究所 電力技術研究所），新井　伸隆（（一財）電力中央研究所 電力技術研究所），森　亮太（（一財）電力中央研究所 電力技術研究所）

著者名(英語): Kazuyuki Ishimoto (Electric Power Emgineering Research Laboratory, CRIEPI), Shingo Hara (Kyusyu Electric Power Co., Inc.), Akira Asakawa (Electric Power Emgineering Research Laboratory, CRIEPI), Nobutaka Arai (Electric Power Emgineering Research Laboratory, CRIEPI), Ryota Mori (Electric Power Emgineering Research Laboratory, CRIEPI)

キーワード: 配電線，配電自動化システム，耐雷設計，雷電流分布，接地方式　　distribution lines，distribution automation system，lightning protection design，lightning current distribution，grounding system

要約(英語): In Japan, in order to improve supply reliability and power quality, distribution automation system has been widely introduced. However, automation equipment such as automation switch and its controller consists of many low-voltage devices, and therefore, vulnerability against lightning surge is a concern. From the survey results of lightning damaged automation equipment, it has shown that the main lightning damage factor is the energy of the lightning current passing through the automation equipment. In this paper, we experimentally examined lightning current distribution inside the automation equipment by direct lightning strike test using an actual-scale test distribution line. We found from experiment results that the lightning current distribution depends on the grounding system of automation equipment. To reduce the lightning current passing through the automation equipment, it is important to connect grounding conductors of the automation equipment, the surge arresters and the pole-mounted transformers at the single point.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.139 No.5 （2019） 特集：雷・熱プラズマ・アーク技術の最新動向

本誌掲載ページ: 372-379 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/139/5/139_372/_article/-char/ja/