Discrepancies of PD patterns from a fixed metal object on oil-paper insulation

Dongsheng Guo, Donald M. Hepburn, Alan Nesbitt, Chengke Zhou, Xiaohong Zhou

    Research output: Contribution to conferencePaper

    Abstract

    Partial discharge (PD) has long been thought to be one of the most important indications of the condition of high power plant, not only as quality assurance by manufacturers but also by plant operators during the service. Both types of measurement take place as a short period of activity during which, higher than working stress is applied. In the test regimes, the widely used f- q-n pattern of discharge activity, when compared with existing PD characteristic databases from different defect forms, is crucial to determining the fault type and severity and in diagnosing the condition of the insulation system. The availability and validity such a database is essential and there have been unremitting efforts in both research and industrial applications.

    Original languageEnglish
    Publication statusPublished - 1 Aug 2006

    Keywords

    • electrical engineering
    • particle discharge

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