Tree initiation time evaluation of epoxy/silica composites by partial discharge detection

Yu Chen*, Takahiro Imai, Yoshimichi Ohki, Toshikatsu Tanaka

*この研究の対応する著者

研究成果: Conference contribution

8 被引用数 (Scopus)

抄録

Tree initiation time was evaluated by a pulse detection system developed by the authors to detect a small PD (partial discharge) signal that might take place at first just after a tree was formed. Six kinds of material were prepared for evaluation, i.e. base epoxy resin, microcomposite, two kinds of nanocomposites, and two kinds of nano-micro-mixed-composites. Lengths of trees detected were around 100 μm in our experiments. As a result, it was clarified that tree initiation time is prolonged by nano filler inclusion, but shortened by micro filler filling, and furthermore that nano fillers would help once-shortened time increase for micro filled epoxy specimens. PD erosion was evaluated for the same materials. It was confirmed that a good correlation exists between tree initiation time and PD resistance that is inverse to PD erosion. This correlation indicates that tree formation includes a PD erosion process. Detection of trees smaller than 100 um is required to clarify how a tree takes place at first.

本文言語English
ホスト出版物のタイトル2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2009
ページ404-407
ページ数4
DOI
出版ステータスPublished - 2009 11 16
イベント2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2009 - Harbin, China
継続期間: 2009 7 192009 7 23

出版物シリーズ

名前Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials

Other

Other2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2009
国/地域China
CityHarbin
Period09/7/1909/7/23

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 材料化学

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