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Published Article / ENY-ARTICLE-2008-224

Changes on Insulator Surface under the Influence of Strong Electric Field in Vacuum

Mazurek, B (Wroclaw University of Technology, Poland) ; Tyman, A (Wroclaw University of Technology, Poland)


Abstract: The measurements of flash-over voltages on solid insulation, placed in vacuum have shown the initial flash-over occur at voltages considerably lower than this obtained after multiple flash-over. It can be proved that the initial flash-over voltage increase is mainly connected with gas desorption from the insulator electrodes surfaces. As the surface is being cleaned of gas particles the insulator sparking voltage is increasing, hence the energy of particles bombarding the insulator surface is also increasing.

Keyword(s): vacuum insulation ; flashover voltage
Note: VIIth International Symposium on Discharges and Electrical Insulation in Vacuum, Novosibirsk, USSR, August 1976, pp. 265-269.

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Record created 2008-12-15, last modified 2008-12-15

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