Behaviour of modified insulator surface material under electric stress
Fleszynski, J (Institute of Electrotechnics and Electrotechnology Technical University of Wroclaw, Wroclaw, Poland) ; Tyman, A (Institute of Electrotechnics and Electrotechnology Technical University of Wroclaw, Wroclaw, Poland)
Abstract: Performance of electrical insulators is strongly dependent on their surface properties. In practice manufactures and utilities are using different means to improve them. New materials the insulators or coatings have been used in electric power systems. Also new technologies are tested to modifL insulators glaze, mainly plasma processes. During these processes some changes in the constitution of glaze has to be done and then a new hydrophobic layer is created. Some electrical and physical properties of modified (silicon rubber and fluorourethane coatings, plasma technology) and non-modified real insulators glaze have been presented. These investigations have shown that plasma processes are able to improve the surface properties of the glaze. Since the electrohydrodynamic behaviour of water droplets on the outdoor electrical insulation surface is very important, observations have been done by using a high-speed photo camera.
Keyword(s): insulator ; glaze ; hydrophobicity ; flashover ; water drops
Note: Nordic Insulation Symposium, Bergen, June 10- 12, 1996, pp. 115-121.
Fulltext : http://zet10.ipee.pwr.wroc.pl/record/282/files/
Cited by: try citation search for ENY-ARTICLE-2008-227
Record created 2008-12-17, last modified 2008-12-17
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