交流電圧印加条件の違いが真空中アルミナ絶縁筒内面の帯電分布に与える影響

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: 2017/02/01

タイトル(英語): Formation of Charge Distribution Inside Alumina Cylinder under the Various Conditions of AC Voltage Application in Vacuum

著者名: 福田　英昭（（株）明電舎），石川　啓太（（株）明電舎），山村　健太（（株）明電舎），佐野　陽（（株）明電舎），山納　康（埼玉大学大学院理工学研究科），山本　修（応用科学研究所）

著者名(英語): Hideaki Fukuda (MEIDENSHA CORPORATION), Keita Ishikawa (MEIDENSHA CORPORATION), Kenta Yamamura (MEIDENSHA CORPORATION), Akira Sano (MEIDENSHA CORPORATION), Yasushi Yamano (Saitama University), Osamu Yamamoto (Research Institute for Applied Sciences)

キーワード: 真空，アルミナセラミックス，沿面放電，帯電分布，シールド，交流電圧　　vacuum，alumina ceramics，surface flashover，charge distribution，shield，AC voltage

要約(英語): In order to improve the electrical insulation performance of Vacuum Interrupter (VI), it is important to control a surface flashover which occurs via charging on the insulator. In this paper we prepared a model sample of vacuum interrupter with shield rings which mitigates the high electric field around triple junctions. The charge distributions on the inner surface of cylindrical insulator were investigated after applying AC voltage under the various conditions. The charge distributions were measured over whole area of the inner insulator's surface by an electrostatic probe. As a result, we found that surface electrical charges were formed on some local parts of insulator surface between the areas of the shield rings after the initial stage of several cycles of AC voltage application. After AC voltage application during some seconds, the surface charges tend to expand all over the insulator surface. Additionally, depending on times of AC voltage application test, the formation of surface charges becomes more difficult. It was considered as the conditioning effect on the surface electrical charges.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.137 No.2 （2017） 特集：2015 Korea-Japan Joint Symposium on Electrical Discharge and High Voltage Engineering並びに放電研究の最新動向

本誌掲載ページ: 107-112 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/ieejfms/137/2/137_107/_article/-char/ja/