Effect of insulator shape on surface discharges and flashover under polluted conditions

被引:37
作者
Boudissa, R [1 ]
Djafri, S
Haddad, A
Belaicha, R
Bearsch, R
机构
[1] A Mira Univ, Dept Elect Engn, Bejaia, Algeria
[2] Cardiff Univ, Cardiff Sch Engn, Cardiff CF24 0YF, S Glam, Wales
[3] M Mammeri Univ, Dept Elect Engn, Tizi Ouzou, Algeria
[4] Hosch Zittau, Hochspannungstech, Goerlitz Fachgebiet, Zittau Goerlitz, Germany
关键词
polluted insulators; polymeric insulators; porcelain insulators; insulator flashover; discharge modelling;
D O I
10.1109/TDEI.2005.1453447
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Despite the extensive investigations carried out on the pollution performance of outdoor insulators, the flashover characteristic and its interaction with insulator shape is still not very well understood. In this paper, we present findings of experiments which allow quantifying the effects of insulator geometry on the flashover voltage. Two main parameters were considered: the flashover current (maximum magnitude of leakage current just before flashover) and the flashover voltage. Known difficulties related to accurate measurement of these parameters which are due to parallel partial arcs on some insulators, have been quantified using control insulators and simple modelling approaches. Furthermore, the effect of insulator shape on arc length has been quantified using non-uniform pollution techniques.
引用
收藏
页码:429 / 437
页数:9
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