The field enhancement factor of sand-blasted electrodes

Iain Wilson McAllister, Svend Vibholm (fratrådt)

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    Abstract

    A sample of six sand-blasted electrodes has been subjected to both mechanical and electrical investigations. When the surfaces of a series of conductors are mechanically treated, the resultant microscopic surface geometries will be similar, but not identical. As a consequence of this spread in the geometric characteristics of the roughened surfaces, the m values associated with nominally identical conductors will also exhibit a scatter. The method, which is based on the detection of discharge onset in a gaseous medium at the surface in question, was used to investigate the scatter in a field enhancement factor m for a particular surface treatment. For the sample studied, the mean electric field enhancement factor was found to be 6.6. The mechanical surface parameters indicated a sand aging effect
    Original languageEnglish
    JournalI E E E International Symposium on Electrical Insulation. Conference Record
    Pages (from-to)307-309
    ISSN0164-2006
    DOIs
    Publication statusPublished - 1992
    Event1992 IEEE International Symposium on Electrical Insulation - Baltimore, MD, United States
    Duration: 7 Jun 199210 Jun 1992
    http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=654

    Conference

    Conference1992 IEEE International Symposium on Electrical Insulation
    Country/TerritoryUnited States
    CityBaltimore, MD
    Period07/06/199210/06/1992
    Internet address

    Bibliographical note

    Copyright 1992 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

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