架空絶縁電線表面の負極性沿面放電に及ぼす電線上水滴の影響

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: 2017/08/01

タイトル(英語): Influence of Waterdrop on Wire Surface on Negative Creeping Discharge along Aerial Insulated Wire

著者名: 西　敏行（富山高等専門学校），花岡　良一（金沢工業大学），Fri Murdiya（Universitas Riau），宮城　克徳（金沢工業大学）

著者名(英語): Toshiyuki Nishi (National Institute of Technology, Toyama College), Ryoichi Hanaoka (Kanazawa Institute of Technology), Fri Murdiya (Universitas Riau), Katsunori Miyagi (Kanazawa Institute of Technology)

キーワード: 架空絶縁電線，負極性沿面放電，誘導雷サージ，正極性コロナ放電，湿潤状態　　aerial insulated wire，negative creeping discharge，inductive lightning surge，positive corona discharge，wet condition

要約(英語): The aerial insulated wire is supported by the insulator and binding wire at the reinforced concrete pole. A compound insulation system consisting of the conductive wire core, wire insulation layer, insulator and binding wire exists on the wire supporting point. When the overvoltage due to the inductive lightning surge invades to the conductive wire core, the creeping discharge can develop along the wire surface from the free end of the binding wire just after a flashover at the post insulator. This creeping discharge may give rise to the accidents such as a melting or snapping of the wire. Generally, it has a lot of rain with the generation of a thundercloud that causes lightning strike, and then the insulated wire surface is the wet condition with waterdrops. In the previous paper, we have reported the characteristics of negative creeping discharge along the wire surface at the wet condition under the inductive lightning surge with the peak value Vm ≦ 80kV for the space restriction of the laboratory. In the experiment, the wire height is 75cm on the ground. Therefore, Vm = 80kV in the experiment is equivalent to Vm = 120kV in the real system. This paper presents the characteristics of negative creeping discharge at Vm ≧ 80kV (Vm ≧ 120kV in the real system) for the wet condition. It is reported that the propagation of negative creeping discharge is influenced greatly by the positive corona discharges occurring from the waterdrops surface under the wet condition.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.137 No.8 （2017）

本誌掲載ページ: 589-595 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/137/8/137_589/_article/-char/ja/