不平等電界下の空間電荷分布の変化とエポキシ樹脂の絶縁劣化

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: 2017/11/01

タイトル(英語): Relationship between Deterioration of Epoxy Resin and Change of Space Charge Distribution under Non-uniform Electric Field

著者名: 藤井　雅之（大島商船高等専門学校），山田　真宜（リコージャパン（株）），福間　眞澄（松江工業高等専門学校），村上　義信（豊橋技術科学大学），長尾　雅行（豊橋技術科学大学）

著者名(英語): Masayuki Fujii (National Institute of Technology, Oshima College), Masanori Yamada (RICOH JAPAN Corp.), Masumi Fukuma (National Institute of Technology, Matsue College), Yoshinobu Murakami (Toyohashi University of Technology), Masayuki Nagao (Toyohashi University of Technology)

キーワード: 不平等電界，空間電荷，エポキシ樹脂，劣化診断，電気トリー　　non-uniform electric field，space charge，epoxy resin，deterioration diagnosis，electrical tree

要約(英語): Reliability in the insulating materials is necessary in order to supply stable power. However, the non-uniform electric field is caused by foreign matters or voids in the insulating material. The deterioration of insulating material is accelerated due to the non-uniform electric field and it finally leads to a dielectric breakdown. It is likely that the space charge distribution is related to the deterioration of the insulating material. The pulsed electro-acoustic (PEA) method can make it possible to detect the space charge distribution and to get the valuable information for the deterioration diagnosis. In this study, a line-plate electrodes system was used to bring non-uniform electric field and the epoxy resin was inserted as the insulating material between the line electrode and the plate electrode. The changes of space charge distribution were observed under non-uniform electric field before the dielectric breakdown. As a result, this study indicates that the charge is injected from the line electrode and the space charge distribution changes due to the deterioration of the epoxy resin.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.137 No.11 （2017） 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: 608-613 p

原稿種別: 特集／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/137/11/137_608/_article/-char/ja/