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Open AccessArticle

DC Flashover Performance of Various Types of Ice-Covered Insulator Strings under Low Air Pressure

1
State Key Laboratory of Power Transmission Equipments & System Security and New Technology, College of Electrical Engineering, Chongqing University, Chongqing 400030, China
2
Hubei Suizhou Electric Power Supply Company, Suizhou 441300, China
*
Author to whom correspondence should be addressed.
Deceased on 25 November 2011.
Energies 2012, 5(5), 1554-1576; https://doi.org/10.3390/en5051554
Received: 9 April 2012 / Revised: 15 May 2012 / Accepted: 15 May 2012 / Published: 21 May 2012
In this study, icing flashover performance tests of typical DC porcelain, glass, and composite insulators are systematically carried out in a multifunction artificial climate chamber. The DC icing flashover voltages of seven typical insulators under various conditions of icing thickness, pollution severity before icing, string length, and atmospheric pressure are obtained. The relationships between icing thickness, salt deposit density as well as atmospheric pressure and the 50% icing flashover voltage are analyzed, and the formulas are obtained by regression method. In addition, the DC icing flashover voltage correction method of typical porcelain, glass, and composite insulator in the coexisting condition of high altitude, contamination, and icing is proposed. View Full-Text
Keywords: ice-covered insulator string; flashover performance; DC; low air pressure; pollution ice-covered insulator string; flashover performance; DC; low air pressure; pollution
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MDPI and ACS Style

Hu, J.; Sun, C.; Jiang, X.; Xiao, D.; Zhang, Z.; Shu, L. DC Flashover Performance of Various Types of Ice-Covered Insulator Strings under Low Air Pressure. Energies 2012, 5, 1554-1576.

AMA Style

Hu J, Sun C, Jiang X, Xiao D, Zhang Z, Shu L. DC Flashover Performance of Various Types of Ice-Covered Insulator Strings under Low Air Pressure. Energies. 2012; 5(5):1554-1576.

Chicago/Turabian Style

Hu, Jianlin; Sun, Caixin; Jiang, Xingliang; Xiao, Daibo; Zhang, Zhijin; Shu, Lichun. 2012. "DC Flashover Performance of Various Types of Ice-Covered Insulator Strings under Low Air Pressure" Energies 5, no. 5: 1554-1576.

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