高圧配電用避雷器の接地抵抗値が需要家に侵入する雷サージ発生様相に与える影響

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: 2014/05/01

タイトル(英語): Effect of Grounding Resistance Connected to Surge Arresters in Power Distribution Lines on Lightning Surge Behavior Observed in Customer's Equipment

著者名: 日高　哲也（（一財）電力中央研究所電力技術研究所），塩田　勝史（中国電力（株）），石本　和之（（一財）電力中央研究所電力技術研究所），浅川　聡（（一財）電力中央研究所電力技術研究所）

著者名(英語): Tetsuya Hidaka （Electric Power Engineering Research Lab., CRIEPI）, Katsushi Shiota （Chugoku Electric Power Co., Inc.）, Kazuyuki Ishimoto （Electric Power Engineering Research Lab., CRIEPI）, Akira Asakawa （Electric Power Engineering Research Lab., CRIEPI）

キーワード: 雷，配電線，避雷器，架空地線，接地抵抗，変圧器　　lightning，distribution line，surge arrester，overhead ground wire，grounding resistance，pole transformer

要約(英語): In Japan, electric power companies have been spending a large amount of money on the construction cost and maintenance cost of low grounding resistances connected to surge arresters (Arrs) that is basically maintained below 30Ω. In a recent study, it has been clarified that the rate of protection against direct lightning hits on distribution lines with an overhead ground wire (GW) hardly decreases, even if the grounding resistance of Arrs is high. However the installation of Arrs on a pole where a pole transformer (Tr) is mounted has not been considered, and in the case of a high grounding resistance, the lightning surge behavior observed in customer's equipment has not yet been clarified. To examine the grounding resistance of Arrs, it is necessary to understand such behavior in the case in which the grounding resistance of Arrs is varied.In this paper, we clarified the relationship between the grounding resistance connected to Arrs and lightning surge behavior in customer's equipment. The result shows that the grounding resistance of Arrs installed on a pole with a Tr can be increased to some extent without decreasing the lightning protection level of the customer's equipment by the installation of a GW and the shortening of the interval between concrete poles with Arrs. A reduction in the cost of grounding construction can be expected.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.134 No.5 （2014）

本誌掲載ページ: 456-463 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/134/5/134_456/_article/-char/ja/