Characteristics of Discharge Inception across Barrier in the Oil/Pressboard Composite Insulation System

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カテゴリ: 論文誌(論文単位)グループ名: 【A】基礎・材料・共通部門発行日: 2016/02/01タイトル(英語): Characteristics of Discharge Inception across Barrier in the Oil/Pressboard Composite Insulation System著者名: Shigeyoshi Y oshida (Kyushu Institute of Technology), Masahiro Kozako (Kyushu Institute of Technology), Masayuki Hikita (Kyushu Institute of Technology), Takahiro Umemoto (Mitsubishi Electric Corporation), Soichiro Kainaga (Mitsubishi Electric Corporation)著者名(英語): Shigeyoshi Yoshida (Kyushu Institute of Technology), Masahiro Kozako (Kyushu Institute of Technology), Masayuki Hikita (Kyushu Institute of Technology), Takahiro Umemoto (Mitsubishi Electric Corporation), Soichiro Kainaga (Mitsubishi Electric Corporation), Takahiko Ishikura (Mitsubishi Electric Corporation), Hirotaka Muto (Mitsubishi Electric Corporation), Takao Tsurimoto (Mitsubishi Electric Corporation)キーワード: power transformer，insulating oil，pressboard，creepage discharge要約(英語): This paper deals with discharge characteristics in the oil/pressboard composite insulation system under application of lightning impulse voltage. Large oil gaps in power transformer are often subdivided by insulating barriers into small ones. We observed partial discharge at an oil gap across the barrier without puncturing it in a test sample and also evaluated the voltage required for the phenomenon. As a result, we conclude that the discharge occurred in the oil gap due to the electric field enhancement along with discharge propagation.本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.136 No.2 （2016） 特集：2014 International Symposium on Electrical Insulating Materials本誌掲載ページ: 105-106 p原稿種別: 研究開発レター／英語電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/136/2/136_105/_article/-char/ja/ Show more