The effect of material interfaces on electrical tree growth and breakdown time of epoxy resin

M. Pattouras, S. M. Rowland

    Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

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    Abstract

    This study investigates the effect of an interface on the lifetime of epoxy resin samples and the growth characteristics of electrical trees. Six sample types are presented; all having been prepared in the point-plane configuration using a needle -with a tip radius of 3μm- as the HV electrode. Most were molded in two parts producing an interface perpendicular to the field direction at the centre of the sample. Tests were carried out at 13 kV rms until sample breakdown occurred and sample images were taken at fixed one minute intervals during the test period. Results show that the interface modification affects electrical tree characteristics and improves the time to breakdown of the epoxy resin tested.
    Original languageEnglish
    Title of host publication2014 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)
    PublisherIEEE
    Pages365-368
    Number of pages4
    DOIs
    Publication statusPublished - 2014
    EventConference on Electrical Insulation and Dielectric Phenomena - Des Moines
    Duration: 1 Jan 1824 → …

    Conference

    ConferenceConference on Electrical Insulation and Dielectric Phenomena
    CityDes Moines
    Period1/01/24 → …

    Keywords

    • electrical tree, interface, breakdown, epoxy resin

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