配電用ギャップ付酸化亜鉛形避雷器の放電遅れ現象に関する研究

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: 2018/09/01

タイトル(英語): Study on Discharge Time Lag Phenomenon for a Surge Arrester with a Spark Gap

著者名: 迫田　達也（宮崎大学），堀江　響（宮崎大学），武居　周（宮崎大学），久保　克隆（東芝エネルギーシステムズ（株）），水谷　学（東芝エネルギーシステムズ（株）），深野　孝人（東芝エネルギーシステムズ（株））

著者名(英語): Tatsuya Sakoda (University of Miyazaki), Hibiki Horie (University of Miyazaki), Amane Takei (University of Miyazaki), Katsutaka Kubo (TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION), Manabu Mizutani (TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION), Takato

キーワード: 放電ギャップ，放電遅れ，V-t特性，スペーサ　　spark gap，discharge time lag，V-t characteristics，spacer

要約(英語): Surge arrester with a spark gap has been installed for protecting electric power apparatus from lightning surge in Japanese distribution system. A high - stable discharge characteristic is desirable by shorting the discharge time lag for the spark gap. The top and the bottom face of a ceramic spacer for sustaining the spark gap in a surge arrester contact with electrodes, of which the electric field becomes high. In this study, we performed V-t tests by applying the impulse voltage of 20-42 kV with 1.2/50 μs and measured the number of electrons per unit time against some spark gaps which differed in relative dielectric constant of a ceramic spacer. The higher relative dielectric constant contributed on raising electric field and forming corona discharge at the bottom face of the ceramic spacer, which increased the number of electrons and shortened the discharge time lag.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.138 No.9 （2018）

本誌掲載ページ: 457-462 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/138/9/138_457/_article/-char/ja/