空孔を有する固体絶縁物に覆われた導体を起点とする気中放電に関する基礎的検討

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: 2011/06/01

タイトル(英語): Basic Study of Aerial Flashover Characteristics Generated from Pore of Insulating Solid

著者名: 村上　義信（豊橋技術科学大学），木谷　宏己（豊橋技術科学大学），白井　城太郎（豊橋技術科学大学），長尾　雅行（豊橋技術科学大学），内藤　則一（シンフォニアテクノロジー（株）），羽田野　量久（シンフォニアテクノロジー（株）），河村　博年（シンフォニアテクノロジー（株））

著者名(英語): Yoshinobu Murakami (Toyohashi University of Technology), Hiroki Kitani (Toyohashi University of Technology), Jotaro Shirai (Toyohashi University of Technology), Masayuki Nagao (Toyohashi University of Technology), Norikazu Naito (Sinfonia Technology Corporation, Ltd.), Kazuhisa Hatano (Sinfonia Technology Corporation, Ltd.), Hirotoshi Kawamura (Sinfonia Technology Corporation, Ltd.)

キーワード: 回転機，フローティングポテンシャル，沿面放電，気中放電　　rotation machine，floating potential，surface flashover，aerial flashover

要約(英語): This paper deals with the study on the possibility of an aerial flashover between a coil conductor and a casing in rotating machines under an application of lower voltage compared with Paschen's voltage even when enough insulation distance is secured. The time lag to aerial flashover originated from surface flashover was measured. To understand the aerial flashover influenced by the parameters of voltage application circuit, the aerial flashover distance was measured using cable which had a simulated pore to confirm the above consideration. A surface flashover characteristic was also measured using a photomultiplier tube (PMT). It became clear that the aerial flashover occurred at about a few milliseconds after the surface flashover generation. After showing the peak, the aerial flashover distance decreased with increasing time constant. The surface flashover time estimated by PMT output exhibited the different values with the change of a capacitance when the time constant is larger. On the other hand, the average surface flashover current was almost the same in spite of the change of a capacitance. Form these results, it was considered that the aerial flashover distance was influenced by time constant of circuit.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.131 No.6 （2011） 特集：電気電子絶縁材料システムシンポジウム

本誌掲載ページ: 452-459 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/131/6/131_6_452/_article/-char/ja/