SF6ガス中アーク発生時の密閉容器内の圧力上昇およびエネルギー収支に及ぼす電極材質の影響

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: 2017/04/01

タイトル(英語): Influence of Material of Electrodes on Pressure Rise and Energy Balance due to SF6 Arc in a Closed Container

著者名: 神足　将司（（一財）電力中央研究所 電力技術研究所），田所　兼（（一財）電力中央研究所 電力技術研究所），田中　慎一（（一財）電力中央研究所 電力技術研究所），岩田　幹正（（一財）電力中央研究所 電力技術研究所），天川　正士（（株）電力テクノシステムズ）

著者名(英語): Masashi Kotari (Electric Power Engineering Research Lab., Central Research Institute of Electric Power Industry (CRIEPI)), Tomo Tadokoro (Electric Power Engineering Research Lab., Central Research Institute of Electric Power Industry (CRIEPI)), Shin-ichi Tanaka (Electric Power Engineering Research Lab., Central Research Institute of Electric Power Industry (CRIEPI)), Mikimasa Iwata (Electric Power Engineering Research Lab., Central Research Institute of Electric Power Industry (CRIEPI)), Tadashi Amakawa (Electric Power Engineering Systems Co., Ltd.)

キーワード: SF6，内部アーク代替試験，密閉容器，電極材質，圧力上昇，エネルギー収支　　sulfur hexafluoride，alternative test of internal arcing，closed container，material of electrodes，pressure rise，energy balance

要約(英語): To develop an alternative test method for internal arc in SF6-insulated power equipment, we have systematically obtained experimental data on SF6 arc to calculate the pressure rise in power equipment. In this study, we carried out experiments on SF6 arc in a closed container. The arcs were ignited between rod electrodes by applying a current with a peak of 10.7kA and a duration of 40ms. The rod electrodes were made of copper, iron, and aluminum. It was found that the maximum pressure rise was highest in the case of the aluminum electrode. Additionally, to determine the energy balance resulting from a SF6 arc in the container, the energy balance was discussed on the basis of input energies and consumption energies. The input energy components are the arc energy and the energies of the decomposition reaction of SF6, the oxidation reaction of metal vapor, and the fluoridation reaction of metal vapor. On the other hand, the consumption energy components are the energy contributing to the internal pressure rise and the energies associated with the melting of electrodes, the vaporization of electrodes, and the radiation emitted from the SF6 arc. It was found that the input energies approximately agreed with the consumption energies. The energy of the fluoridation reaction of the metal vapor was highest in the case of the aluminum electrode, and the energy accounted for about 20% of the total input energy. Also, the radiation energy in the case of the aluminum electrode was comparable with that for the iron electrode, and the energy contributing to the internal pressure rise was highest in the case of the aluminum electrode.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.137 No.4 （2017）

本誌掲載ページ: 319-329 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/137/4/137_319/_article/-char/ja/