SF6ガス中楔ギャップのインパルス部分放電開始特性に及ぼすエポキシ複合材へのナノフィラー添加の影響

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: 2021/06/01

タイトル(英語): Effect of Nanofiller Addition to Epoxy Composites on Impulse Partial Discharge Characteristics at Wedge Gap in SF6 Gas

著者名: 井上　好之（九州工業大学），大角　浩太郎（九州工業大学），小迫　雅裕（九州工業大学），匹田　政幸（九州工業大学），増井　秀好（富士電機（株）技術開発本部 先端技術研究所），満留　博（富士電機（株）技術開発本部 先端技術研究所），柳瀬　博雅（富士電機（株）技術開発本部 先端技術研究所），岡本　健次（富士電機（株）技術開発本部 先端技術研究所）

著者名(英語): Yoshiyuki Inoue (Kyushu Institute of Technology), Kotaro Ozuno (Kyushu Institute of Technology), Masahiro Kozako (Kyushu Institute of Technology), Masayuki Hikita (Kyushu Institute of Technology), Hidetaka Masui (Fundamental Technology Research Center Adv

キーワード: ナノ・マイクロコンポジット，インパルス部分放電，SF6ガス，ガス絶縁開閉装置，絶縁スペーサ　　nano-micro composites，impulse partial discharge，SF6 gas，gas insulated switchgear，insulating spacer

要約(英語): Increasing the surface flashover voltage of the internal insulation spacer is important to reduce the size of gas insulated switchgear (GIS). The authors are developing a new nanocomposite insulating material that contributes to the miniaturization of GIS spacers. In this paper, we investigated the effect of various nanofillers added to epoxy composites on the impulse partial discharge inception voltage (PDIV) characteristics in the wedge gap of SF6 gas. As a new insulating material, we have created a nano-micro composite (NMC) in which 1 vol% of nano-scale silica, titania, and strontium titanate particles are mixed in micro-composite (MC) added with μ size silica. The NMC was sandwiched between a rod and plate electrode, and positive discharge voltage was applied to the rod electrode in SF6 at 0.5 MPa to measure partial discharge inception voltage PDIV. As a result, the impulse PDIV of any type of NMC was increased by about 4% over the impulse PDIV of MC. It was shown that the PDIV values estimated by volume time theory were in good agreement with the measured values. It is concluded that this increase in PDIV with the addition of the nanofillers is brought by deep electron traps formed by the nanofillers.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.141 No.6 （2021） 特集：電気電子工学関連分野における教育フロンティア

本誌掲載ページ: 391-397 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/141/6/141_391/_article/-char/ja/