间插布置方式对交流绝缘子串覆冰特性影响

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Abstract Using the type of iced insulators connected with alternately large and small diameter sheds (CALSDS) can improve icing flashover voltage. The electric field model of ice-covered insulator string is put forward and validated by experiment tests in this paper, furthermore, the influence of the diameter of insulators with large sheds and the type of CALSDS on the electric field strength distribution is discussed. The research results show that: the potential distribution of icing insulator string with CALSDS may change greatly, whereas is lower than that with normal collocation; the effect of preventing icing is obvious using the type of CALSDS with “3+1” and “4+1” and the diameter of insulators with large sheds which is larger 100～150mm than that of normal insulator; the icing flashover voltage can be improved about fifteen to twenty percent using reasonable the type of CALSDS according to the experimental results.

Key words： Icing AC insulator string connected with alternately large and small diameter sheds (CALSDS) electric field model electric field distribution

Received: 03 September 2008 Published: 07 March 2014

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TM852

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	Zhang Zhijin
	Jiang Xingliang
	Hu Jianlin
	Sun Caixin

Cite this article:

Zhang Zhijin,Jiang Xingliang,Hu Jianlin等. Influence of the Type of Insulators Connected With Alternately Large and Small Diameter Sheds on AC Icing Flashover Performance[J]. Transactions of China Electrotechnical Society, 2011, 26(1): 170-176.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2011/V26/I1/170

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