Effect of Environment Factors on AC Flashover Performance of 3 Units of Polluted Insulator Strings under Natural Fog Condition

被引:15
作者
Dong, Bingbing [1 ]
Jiang, Xingliang [1 ]
Zhang, Zhijin [1 ]
Hu, Jianlin [1 ]
Hu, Qin [1 ]
Shu, Lichun [1 ]
机构
[1] Chongqing Univ, State Key Lab Power Transmiss Equipment & Syst Se, Coll Elect Engn, Chongqing 400044, Peoples R China
关键词
Natural test station; fog; pollution; insulator; wind velocity; AC flashover performance; DC FLASHOVER; HIGH-ALTITUDE; VOLTAGE; CONTAMINANTS;
D O I
10.1109/TDEI.2014.004214
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
The electrical characteristics of contaminated insulators wetted by natural fog are rarely reported at home and abroad. Based on natural fog observations for 4 years at Xuefeng Mountain testing station, the AC flashover performance of three units of polluted insulator strings wetted by natural fog was studied. The results show that there are some differences on the flashover voltage stress between results of field test and Baker et al. The AC flashover process of the polluted insulators mainly includes wetness of the contamination, formation of dry bands, burning and elongation of partial arc and flashover. Moreover, the wind velocity has influence the flashover performance of insulator strings.
引用
收藏
页码:1926 / 1932
页数:7
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