縦磁界中真空大電流アークによる接点表面温度の解析

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: 2014/11/01

タイトル(英語): Temperature Analysis on Contact Surface after High-Current Diffuse Vacuum Arc

著者名: 月間　満（三菱電機（株）先端技術総合研究所），安部　淳一（三菱電機（株）先端技術総合研究所），古賀　博美（三菱電機（株）受配電システム事業所）

著者名(英語): Mitsuru Tsukima (Advanced R&D Center, Mitsubishi Electric Corp), Junichi Abe (Advanced R&D Center, Mitsubishi Electric Corp), Hiromi Koga (Power Distribution Systems Center, Mitsubishi Electric Corp)

キーワード: 真空バルブ，縦磁界，真空アーク，温度計算　　vacuum interrupter，AMF，vacuum arcs，temperature simulation

要約(英語): Temperature on a contact surface after a high-current vacuum arc influences on the interruption ability of a vacuum interrupter (VI). This paper shows relation between the interruption ability of the VI with AMF electrodes and the contact temperature after the high-current arc. First, 2D axis-symmetric temperature calculation model was constructed, taking into account with a two-region arc input and melting and evaporating losses. To validate these calculation results, we performed contact surface temperature measurements after high current vacuum arc, using a two-color pyrometer and high-speed flaming video. Assuming 50% of the total arc energy was consumed in the anode region, the calculation gives fairy good result. Next, for several types of AMF electrodes, their temperature variations during and after the high-current arcs were calculated and compared each other. Then these AMF electrodes were built into the prototype vacuum interrupters, and investigated under short-circuit interruption tests. As the result, the interruption ability was found to be related with peak temperature on the contact surface at current zero.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.134 No.11 （2014）

本誌掲載ページ: 930-935 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/134/11/134_930/_article/-char/ja/