PFAE油中の誘電体板隙間を進展する沿面放電の特性

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: 2011/10/01

タイトル(英語): Properties of Creeping Discharge in Narrow Gap between Dielectric Plates in PFAE Oil

著者名: 碓氷　拓郎（金沢工業大学電気電子工学科），花岡　良一（金沢工業大学電気電子工学科），高田　新三（金沢工業大学電気電子工学科），金丸　保典（金沢工業大学電気電子工学科），小出　英延（(株) 日本AEパワーシステムズ），仲神　芳武（工学院大学工学部機械工学科）

著者名(英語): Takuro Usui (Department of Electrical and Electronic Engineering, Kanazawa Institute of Technology), Ryoichi Hanaoka (Department of Electrical and Electronic Engineering, Kanazawa Institute of Technology), Shinzo Takata (Department of Electrical and Electronic Engineering, Kanazawa Institute of Technology), Yasunori Kanamaru (Department of Electrical and Electronic Engineering, Kanazawa Institute of Technology), Hidenobu Koide (Japan AE Power Systems Corporation), Yoshitake Nakagami (Department of Mechanical Engineering, Kogakuin University)

キーワード: PFAE油，鉱油，誘電体板隙間，沿面放電，雷インパルス電圧，フラッシオーバ　　PFAE oil，mineral oil，narrow gap between dielectric plates，creeping discharge，lightning impulse voltage，flashover

要約(英語): Using the lightning impulse voltages of ±1.2/50 μs and ±1.2/1000 μs with ±140 kVpeak in maximum, the behaviors of creeping streamers progressed in a narrow gap between two solid dielectric plates immersed in palm fatty acid ester (PFAE) oil were investigated. The discharge shapes and the streamer lengths were observed using a still camera equipped with a night viewer and the progression steps of the streamer were observed using a high-speed image converter camera. The effects of two interfaces between solid dielectrics, the back side electrode (BSE) and the wave tail of impulse voltages were examined on the growth of positive and negative streamers, the flashover voltage and the streamer velocity. The streamer length is extended by the presence of the BSE and a long wave tail of impulse voltage. This results in the reduction of the flashover voltage. It is worthy of notice that the negative streamer progressed in a narrow gap grows longer than the positive streamer under identical applied voltage. This polarity effect on the streamer length is the inverse from that in an oil/pressboard interface without a narrow gap. The streamers in both polarities also slow down its velocity because of a narrow gap with two solid interfaces. These results on the creeping discharge have been compared with those in commercial mineral oil.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.131 No.10 （2011） 特集：液体中の放電と基礎現象および液体応用技術

本誌掲載ページ: 817-823 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/131/10/131_10_817/_article/-char/ja/