純水の負極性雷インパルス絶縁破壊電圧特性

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: 2018/08/01

タイトル(英語): Characteristics of Negative Lightning Impulse Breakdown Voltage in Pure Water

著者名: 高村　紀充（福岡大学），荒岡　信隆（福岡大学），蒲原　聖也（福岡大学），日野　雄太（福岡大学），別府　拓哉（福岡大学），花井　正広（福岡大学）

著者名(英語): Norimitsu Takamura (Fukuoka University), Nobutaka Araoka (Fukuoka University), Seiya Kamohara (Fukuoka University), Yuta Hino (Fukuoka University), Takuya Beppu (Fukuoka University), Masahiro Hanai (Fukuoka University)

キーワード: 純水，負極性雷インパルス電圧，絶縁破壊，試験方法，極性効果，圧力_x000D_　　pure water，negative lightning impulse voltage，breakdown，test method，polar effect，pressure

要約(英語): We investigated the fundamental insulation characteristics of pure water using a negative lightning impulse voltage. The breakdown characteristics of pure water were similar between the up-and-down test and the progressive stress test. The breakdown strength of pure water was equal to or greater than the minimum breakdown strength required for insulating oil. The polar effect was confirmed in the breakdown characteristics of pure water due to the difference in electrode composition. In addition, the average breakdown voltage of pressurized pure water was approximately 1.3 times higher than that of non-pressurized pure water. The standard deviation of pressurized pure water was approximately 30% lower than that of non-pressurized pure water. These results were similar to those of insulating oils, which suggests that the breakdown of pure water was considered to be caused by the bubble theory.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.138 No.8 （2018）

本誌掲載ページ: 441-448 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/138/8/138_441/_article/-char/ja/