Discharge Onset Voltage Prediction for a Gas-Insulated System Via the Figure-of-Merit Concept

George C Crichton, Svend Vibholm

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    Abstract

    The accuracy of discharge onset prediction via thefigur figure-of-merit concept for a strongly electronegative gas is examined. A coaxial system is employed, for which the inner electrode possesses a surface roughness of Ra=35 ¿m. With SF6 as the insulating medium a reference discharge-onset characteristic is obtained for gas pressures up to 0.8 MPa. From a knowledge of this onset characteristic, the direct calculation of discharge onset voltages in other strongly electronegative gases is undertaken by utilizing thefigur figure-of-merit concept. For gas pressures in the range O.02
    Original languageEnglish
    JournalIEEE Transactions on Electrical Insulation
    VolumeEI-22
    Issue number6
    Pages (from-to)819-823
    ISSN0018-9367
    DOIs
    Publication statusPublished - 1987

    Bibliographical note

    Copyright: 1987 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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