OFケーブル油浸紙積層絶縁系での部分放電特性推移に及ぼす電界・油圧・絶縁構成の影響

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: 2020/04/01

タイトル(英語): Effects of AC Electrical Stress, Oil Pressure and Insulation Construction on Time Transition of Partial Discharge Characteristics on Oil-impregnated Paper Insulation System for Oil-filled Cables

著者名: 牧野　裕太（（一財）電力中央研究所），岩下　雄宇（九州電力（株）電力輸送技術センター），栗原　隆史（（一財）電力中央研究所），髙橋　俊裕（（一財）電力中央研究所），岡本　達希（関東学院大学）

著者名(英語): Yuta Makino (Central Research Institute of Electric Power Industry), Yuu Iwashita (Transmission & System Operation Engineering Center, Kyushu Electric Power Co. Inc.), Takashi Kurihara (Central Research Institute of Electric Power Industry), Toshihiro Takahashi (Central Research Institute of Electric Power Industry), Tatsuki Okamoto (Kanto Gakuin University)

キーワード: OFケーブル，部分放電，油浸紙絶縁系，油隙の重なり　　oil-filled cable，partial discharge，oil-impregnated paper insulation system，superposed oil gaps

要約(英語): We investigated effects of AC electrical stress, the oil pressure and the insulation construction on the partial discharge (PD) characteristics of an oil-impregnated paper insulation system for oil-filled (OF) cables. The oil-impregnated paper insulation system with an oil gap was composed of oil-impregnated papers with a hole and papers without any hole. They were sandwiched between parallel plane electrodes. We observed PD signal under the conditions of the AC electrical stress from 8 to 13kV/mm and the oil pressure from 0.00 to 0.25MPaG, and the insulation thickness from about 1 to 2mm or the oil gap thickness from 0.125 to 0.625mm. As a result, it is firstly revealed that the AC electrical stress, the oil pressure and the oil gap thickness affect the continuity of PD occurrence. Then, the maximum PD charge magnitude and the PD repetition rate increased with the oil gap thickness. The lead time from PD ignition to the breakdown was not much influenced by the insulation thickness.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.140 No.4 （2020） 特集：最近の電線・ケーブル技術

本誌掲載ページ: 261-270 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/140/4/140_261/_article/-char/ja/