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This paper presents an analysis of the arcing and flashover performance of contaminated dc insulators of various suspension patterns at high altitudes (1970 m). The experiments tested two types of dc insulators, a bell-type insulator and a tri-shed suspension insulator. The experimental results show that dc arcs play an important role in the flashover performance since they levitate more easily from...
This paper presents the results of an investigation on the DC flashover characteristic of contaminated glass insulators at natural high altitudes (1970 m). The arcing behavior on natural contaminated glass insulator surfaces was studied using a high-speed camera. The experimental results show that the DC arcs have a significant influence on the flashover performance of contaminated glass insulator...
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