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

Yu Chen, Takahiro Imai, Yoshimichi Ohki, Toshikatsu Tanaka

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    7 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Title of host publicationProceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials
    Pages404-407
    Number of pages4
    DOIs
    Publication statusPublished - 2009
    Event2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2009 - Harbin
    Duration: 2009 Jul 192009 Jul 23

    Other

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

    Fingerprint

    Partial discharges
    Silicon Dioxide
    Silica
    silicon dioxide
    composite materials
    evaluation
    Composite materials
    Fillers
    Erosion
    fillers
    erosion
    Epoxy Resins
    Epoxy resins
    Nanocomposites
    epoxy resins
    nanocomposites
    inclusions
    Experiments
    pulses

    Keywords

    • Epoxy/silica composites
    • PD detection
    • PD erosion
    • Tree initiation time
    • Tree shape

    ASJC Scopus subject areas

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

    Cite this

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

    Tree initiation time evaluation of epoxy/silica composites by partial discharge detection. / Chen, Yu; Imai, Takahiro; Ohki, Yoshimichi; Tanaka, Toshikatsu.

    Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials. 2009. p. 404-407 5252405.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Chen, Y, Imai, T, Ohki, Y & Tanaka, T 2009, Tree initiation time evaluation of epoxy/silica composites by partial discharge detection. in Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials., 5252405, pp. 404-407, 2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2009, Harbin, 09/7/19. https://doi.org/10.1109/ICPADM.2009.5252405
    Chen Y, Imai T, Ohki Y, Tanaka T. Tree initiation time evaluation of epoxy/silica composites by partial discharge detection. In Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials. 2009. p. 404-407. 5252405 https://doi.org/10.1109/ICPADM.2009.5252405
    Chen, Yu ; Imai, Takahiro ; Ohki, Yoshimichi ; Tanaka, Toshikatsu. / Tree initiation time evaluation of epoxy/silica composites by partial discharge detection. Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials. 2009. pp. 404-407
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