絶縁油中アークによる密閉容器内部の圧力上昇―気泡挙動と圧力上昇の関係―

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: 2016/02/01

タイトル(英語): Pressure Rises due to Arc under Insulating Oil in Closed Vessel―Relationship between Bubble Behavior and Pressure Rises―

著者名: 田所　兼（（一財）電力中央研究所），神足　将司（（一財）電力中央研究所），大高　聡也（（一財）電力中央研究所），岩田　幹正（（一財）電力中央研究所），天川　正士（（一財）電力中央研究所）

著者名(英語): Tomo Tadokoro (Central Research Institute of Electric Power Industry (CRIEPI)), Masashi Kotari (Central Research Institute of Electric Power Industry (CRIEPI)), Toshiya Ohtaka (Central Research Institute of Electric Power Industry (CRIEPI)), Mikimasa Iwata (Central Research Institute of Electric Power Industry (CRIEPI)), Tadashi Amakawa (Central Research Institute of Electric Power Industry (CRIEPI))

キーワード: 電力機器，アーク，絶縁油，圧力上昇，気泡，短絡故障　　power equipment，arc，insulation oil，pressure rise，bubble，short-circuit fault

要約(英語): When a fault arc occurs in oil-filled electric power equipment such as transformers in transmission and distribution systems, it generates a flammable gas and a dynamic pressure rise that may trigger an explosion. The purpose of this fundamental study is to investigate the effects of the arc under electrical insulation oil on pressure rises in a closed vessel containing air and oil. In particular, this paper is intended to investigate the relationship between the pressure rises and the generated bubble behavior by the arc. The pressure rises in both air and oil are measured under experimental conditions involving an arc current ranging from 2.3 to 8.9kA, an arc duration of 10 or 100 milliseconds. Experimental results show that the behavior of a bubble affects the pressure rises in the air and the oil as low-frequency pressure oscillation comparatively.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.136 No.2 （2016）

本誌掲載ページ: 175-183 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/136/2/136_175/_article/-char/ja/