湿潤状態における架空絶縁電線表面の負極性沿面放電現象

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: 2014/05/01

タイトル(英語): Negative Creeping Discharge along Aerial Insulated Wire under Wet Condition

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（金沢工業大学），宮城　克徳（金沢工業大学）

著者名(英語): Toshiyuki Nishi （Toyama National College of Technology）, Ryoichi Hanaoka （Kanazawa Institute of Technology）, Fri Murdiya （Kanazawa Institute of Technology）, 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，波頭長，湿潤状態　　aerial insulated wire，negative creeping discharge，inductive lightning surge，duration of wave front，wet condition

要約(英語): The aerial insulated wires are supported by post insulators and binding wires on the reinforced concrete pole. When a lightning flash strikes near by the wires, the overvoltage due to the indirect lightning surge induces to the conductive wire core. The creeping discharge can develop along the wire surface from the free end of the binding wire through post insulator and reinforced concrete pole compound when a flashover occurred at the post insulator and it also leads to damages on the wire such as melting or snapping. It could be occurred under both rainy and thunderstorm condition. In this case, it indicates that the wire surface is stressed by lightning impulse under wet condition. Consequently, it is an important subject to prevent the wire damages and to clarify the characteristics of creeping discharge along the wire surface under dry and wet condition. In the previous studies, we had observed the characteristics of creeping discharge along the wire surface under dry condition. In this study, we examined creeping discharges under both the impulse voltages with various durations of wave front and wet condition on the wire surface. Then, these voltages were applied to the conductive wire core as the inductive lightning surge. The length and phenomena of negative creeping discharge developing along the wire surface were measured using a still camera with an image intensifier. We report the developing characteristics of negative creeping discharge along the wire surface under wet condition.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.134 No.5 （2014）

本誌掲載ページ: 419-426 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/134/5/134_419/_article/-char/ja/