SF6ガス中アーク発生時の密閉容器内部の圧力上昇およびエネルギー収支

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: 2015/03/01

タイトル(英語): Pressure Rise due to SF6 Arcing and Energy Balance 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（（一財）電力中央研究所　電力技術研究所）

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 Research Lab., Central Research Institute of Electric Power Industry (CRIEPI))

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

要約(英語): From an environmental viewpoint, when carrying out internal arc tests on SF6-insulated power equipment, it is necessary to prevent SF6 from being released into the atmosphere or to replace SF6 with air in accordance with IEC standards. However, the pressure rise and the thermal of the hot gas exhausted during arcing when testing in air are still considerably different from those for testing in SF6. Thus, it is necessary to propose a specific procedure to replace SF6 with air and to select appropriate parameters for the tests. Therefore, it is desirable to clarify the equivalent conditions causing these phenomena both experimentally and analytically. In this paper, we describe the effect of the charged gas pressure in a closed container on the pressure rise due to air and SF6 arcing and the ratio of the arc energy to the energy contributing to the internal pressure rise (kp) from an experimental viewpoint. Additionally, to research the energy balance resulting from SF6 arcing in the container, the energy balance is discussed on the basis of chemical reactions, radiation, and the melting and vaporization of the electrodes. It is found that the maximum pressure rise increases for both gases upon increasing the gas pressure from 0.1MPa to 0.4MPa. Subsequently, good agreement with the energy balance was obtained under reasonable assumptions by taking account of the energy components related to the chemical reactions, radiation, and the melting and vaporization of the electrodes. The ratio of the radiation energy loss to the total consumption energy increased upon increasing the charged gas pressure.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.135 No.3 （2015）

本誌掲載ページ: 181-190 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/135/3/135_181/_article/-char/ja/