GIS外部に設置するUHF部分放電センサの感度特性の改善

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: 2012/02/01

タイトル(英語): Improvement of Sensitivity Characteristics of UHF Sensor Attached Outside a GIS Tank

著者名: 丸山　志郎（(株) 東芝），星野　俊弘（(株) 東芝），溝尻　智之（愛知工業大学），村瀬　洋（愛知工業大学）

著者名(英語): Shiro Maruyama (Toshiba Corporation), Toshihiro Hoshino (Toshiba Corporation), Tomoyuki Mizojiri (Aichi Institute of Technology), Hiroshi Murase (Aichi Institute of Technology)

キーワード: GIS，絶縁診断，部分放電，UHF，内部ディスク電極，スペーサフランジ　　GIS，insulation diagnostics，partial discharge，UHF，internal disc coupler，spacer flange

要約(英語): This paper deals with the method of partial discharge (PD) detection with the sensor (antenna) put at the outside of the GIS tank. The flange of the spacer is paid attention as a leakage place of the UHF from the PD. Three kinds of antennas are proposed and made for trial purposes. And one commercial antenna is selected for this study. Comparative studies of the four antennas with the internal PD sensor (disk coupler) used worldwide so far are made from the viewpoint of the sensitivity characteristics. The difference between the sensitivity behavior of each antenna and the coupling mechanism with the electromagnetic radiation is discussed based on this result, and the sensitivity improvement plan of the antenna is considered. As a result, it has been concluded that making the feeding point of the antenna stick to the spacer flange contributes sensitivity improvement in a comparatively low bandwidth.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.132 No.2 （2012） 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: 114-121 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/132/2/132_2_114/_article/-char/ja/