Influence of bulk dielectric polarization and void geometry upon PD transients

Iain Wilson McAllister, George C Crichton

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    The induced charge arising from a partial discharge consists of a component associated with the actual space charge in the void, and one related to changes in the polarization of the bulk dielectric. These changes are brought about by the field produced by the space charge. The influence of the void geometry upon the polarization component of the induced charge is examined for a heterogeneous bulk dielectric system. It is demonstrated that the relative magnitude of this component may either increase or decrease, depending on the ratio of the dielectric permittivities and within which dielectric the void is located. The magnitude of this effect is also dependent upon the prolateness/oblateness of the void geometry and on the orientation of the void.
    Original languageEnglish
    Title of host publication1999 Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, IEEE Publication 99CH36319
    Place of PublicationNew York
    Publication date1999
    ISBN (Print)0-7803-5414-1
    Publication statusPublished - 1999
    EventConference on Electrical Insulation and Dielectric Phenomena 1999 - Austin, TX, United States
    Duration: 17 Oct 199920 Oct 1999


    ConferenceConference on Electrical Insulation and Dielectric Phenomena 1999
    Country/TerritoryUnited States
    CityAustin, TX
    Internet address

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