負極性雷インパルス放電による貫通現象に及ぼす絶縁フィルムの表面抵抗率の影響

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: 2020/07/01

タイトル(英語): Influence of Surface Resistivity of Insulation Films on Penetration Phenomenon by Negative Lightning Impulse Discharge

著者名: 水﨑　雅之（福岡大学），荒岡　信隆（福岡大学），高村　紀充（福岡大学），佐々木　佑樹（福岡大学），龍　輝優（熊本大学），松田　樹也（熊本大学），浪平　隆男（熊本大学），花井　正広（福岡大学）

著者名(英語): Masayuki Mizusaki (Fukuoka University), Nobutaka Araoka (Fukuoka University), Norimitsu Takamura (Fukuoka University), Yuki Sasaki (Fukuoka University), Terumasa Ryu (Kumamoto University), Mikiya Matsuda (Kumamoto University), Takao Namihira (Kumamoto University), Masahiro Hanai (Fukuoka University)

キーワード: 風力発電機，負極性雷インパルス放電，絶縁物，貫通，表面抵抗率　　wind power generator，negative lightning impulse discharge，insulator，penetration，surface resistivity

要約(英語): A method is needed to prevent damage of wind power generators from lightning strikes even if lightning strikes the blades. In our experiment, the discharge progressing to the film was hard to penetrate the low surface resistivity polyethylene terephthalate (PET) films with conductive coating on one side, although the discharge always penetrated the uncoated PET film. This result was confirmed when the coated surface of the film was directed to either the high voltage rod electrode side or the ground plate electrode side. It was also confirmed that the progress of negative leader generated from the high voltage rod electrode side was hindered by the film from the photograph with the high speed camera. The time constant was calculated from the product of the surface resistance and the capacitance between the film and the plate electrode. As a result, it was suggested that the propagation of electric potential might be fast because time constant is smaller in the case of the low surface resistivity PET films.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.140 No.7 （2020）

本誌掲載ページ: 611-616 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/140/7/140_611/_article/-char/ja/