電流積分電荷法による直流不平等電界下のエポキシ樹脂の電気トリー検出
電流積分電荷法による直流不平等電界下のエポキシ樹脂の電気トリー検出
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: 2020/09/01
タイトル(英語): Detection of Electrical Tree in Epoxy Resin under Non-uniform DC Electric Field Measured by Current Integrated Charge Method
著者名: 藤井 雅之(大島商船高等専門学校),松下 幸樹(大島商船高等専門学校),福間 眞澄(松江工業高等専門学校),光本 真一(豊田工業高等専門学校)
著者名(英語): Masayuki Fujii (National Institute of Technology, Oshima College), Koki Matsushita (National Institute of Technology, Oshima College), Masumi Fukuma (National Institute of Technology, Matsue College), Shinichi Mitsumoto (National Institute of Technology, Toyota College)
キーワード: 電流積分電荷法,不平等電界,エポキシ樹脂,電気トリー,空間電荷 current integrated charge method,non-uniform electric field,epoxy resin,electrical tree,space charge
要約(英語): Epoxy resin not only has excellent insulation properties, but also has properties such as heat resistance, water resistance and so on. For these reasons, epoxy resin is used in various applications. It is necessary to pay attention to the deterioration of partial discharge and electrical tree, when the epoxy resin is used as an insulating material for DC high-voltage equipment, because they are exposed to a high DC electric field. In addition, it is known that the insulation performance of the epoxy resin is significantly reduced, when a foreign matter or air void is mixed in them, because non-uniform electric field will be generated. The electrical tree generated by non-uniform electric field increases the risk of dielectric breakdown and reduces the reliability of equipment. Therefore, it is necessary to accurately diagnose the deterioration of the epoxy resin and to clarify the risk before dielectric breakdown. It is expected that the accurate degradation diagnosis for DC high-voltage equipment will be possible by using the current integrated charge method. The equipment can be operated safely by clarifying the correlation between the integrated charge and the electrical tree. In this study, the electrical tree in epoxy resin was diagnosed by the current integrated charge method under non-uniform DC electric field. As a result, several information on the electrical tree was obtained before dielectric breakdown.
本誌: 電気学会論文誌A(基礎・材料・共通部門誌) Vol.140 No.9 (2020) 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: 432-438 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/140/9/140_432/_article/-char/ja/
受取状況を読み込めませんでした
