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

Yu Chen, Takahiro Imai, Yoshimichi Ohki, Toshikatsu Tanaka

研究成果: Conference contribution

7 引用 (Scopus)

抜粋

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.

元の言語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
出版物ステータス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
China
Harbin
期間09/7/1909/7/23

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Materials Chemistry

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  • これを引用

    Chen, Y., Imai, T., Ohki, Y., & Tanaka, T. (2009). Tree initiation time evaluation of epoxy/silica composites by partial discharge detection. : 2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2009 (pp. 404-407). [5252405] (Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials). https://doi.org/10.1109/ICPADM.2009.5252405