CVケーブル用終端部外部診断技術の開発

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: 2013/07/01

タイトル(英語): Development of External Diagnosis for Terminals in XLPE Cables

著者名: 小浜　隆治（中部電力（株）），森下　幸信（中部電力（株）），長山　忠則（東北電力（株）），佐藤　悦郎（東北電力（株）），鈴木　弘（（株）ジェイ・パワーシステムズ），阿部　和俊（（株）ジェイ・パワーシステムズ）

著者名(英語): Takaharu Kohama (Chubu Electric Power Co., Inc.), Yukinobu Morishita (Chubu Electric Power Co., Inc.), Tadanori Nagayama (Tohoku Electric Power Co., Inc.), Etsuro Sato (Tohoku Electric Power Co., Inc.), Hiroshi Suzuki (J-Power Systems Corp.), Kazutoshi Abe (J-Power Systems Corp.)

キーワード: CVケーブル，終端部，劣化診断，アセチレン，ガス分析　　XLPE cable，terminal，external diagnosis，acetylene，gas analysis

要約(英語): This paper describes on a diagnostic method using gas analysis for terminals in aged 66-77kV XLPE cable lines. It was revealed from fundamental experiments and gas analysis of 45 terminals in actual XLPE cable lines that acetylene was particular gas produced by discharge at interface areas in terminals and the most suitable gas for diagnosis. It was cleared from the results of gas analysis and dismantlement carried out for another 96 terminals that a large amount of brownish-red deposits including black ones were observed at the interface area between XLPE and pre-molded insulations for terminals with high concentrations of acetylene gas, which strongly suggested the generation of partial discharge at that area. It was also found from the correlation between gas-analysis and dismantlement results that concentration of acetylene gas increased rapidly with degree of aging degradation, which showed that acetylene gas analysis was applicable to deterioration diagnosis for aged terminals in actual XLPE cables. In addition, easy and safe on-site gas sampling was established with the installation of a gas cock in metal casing of the terminal.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.133 No.7 （2013）

本誌掲載ページ: 642-649 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/133/7/133_642/_article/-char/ja/