ZnOマイクロバリスタを注入した絶縁材料の電気特性の解析

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: 2013/11/01

タイトル(英語): Analysis of Electrical Properties of Insulation Material Filled with ZnO Microvaristors

著者名: 小野　結太（秋田大学大学院工学資源学研究科），Mahmudul Kabir（秋田大学大学院工学資源学研究科），鈴木　雅史（秋田大学大学院工学資源学研究科），吉村　昇（秋田大学）

著者名(英語): Yuta Ono (Graduate School of Engineering and Resource Science, Akita University), Mahmudul Kabir (Graduate School of Engineering and Resource Science, Akita University), Masafumi Suzuki (Graduate School of Engineering and Resource Science, Akita University), Noboru Yoshimura (Akita University)

キーワード: ZnOマイクロバリスタ，非線形性，気中ブッシング　　ZnO microvaristor，non-linear properties，air bushing

要約(英語): Recently, the need of using of direct molded (DM) air bushing in cable end terminals and transformers are increasing due to its merits of lighter weight and simpler structure comparing to the porcelain bushing. It uses epoxy resin as the main insulation material around the main conductor. Despite several merits of using epoxy resin, the field concentration around the shield fittings occurs which may cause electricity failure and insulation degradation. For the field controlling, an approach has started to use the Zinc Oxide (ZnO) microvaristors in epoxy resin. However, the measurement of electrical properties of epoxy resin filled with ZnO microvaristors exposed in high voltage (HV) is not easy. So, we have approached with circuit simulation method to understand the electrical properties of ZnO particles while injected in epoxy sheet by LTspice circuit simulator. Epoxy sheets with different volume fraction of ZnO particles were proposed and their equivalent circuits were prepared. The simulation results showed the relationship between their electrical properties with the amount and distribution of ZnO particles in epoxy sheet under HV application.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.133 No.11 （2013） 特集：開閉保護技術

本誌掲載ページ: 882-887 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/133/11/133_882/_article/-char/ja/