不同试验方法下覆冰绝缘子直流闪络特性的比较(英文)

被引：4

作者：

胡建林 ^{[1
]}

罗明武 ^{[2
]}

蒋兴良 ^{[1
]}

孙才新 ^{[1
]}

张志劲 ^{[1
]}

舒立春 ^{[1
]}

机构：

[1] State Key Laboratory of Power Transmission Equipment &System Security and New Technology,College of Electrical Engineering,Chongqing University

[2] Hubei Suizhou Electric Power Supply Company

来源：

高电压技术 | 2012年 / 38卷 / 08期

关键词：

D O I：

暂无

中图分类号：

TM216 [绝缘子和套管];

学科分类号：

080806 [电工材料与电介质];

摘要：

In this paper,the DC flashover characteristics of iced insulator strings were explored in the multi-functional artificial climate chamber by four methods,namely,the average flashover voltage method,the minimum flashover voltage method(U-curve method),the maximum withstand method and the 50% withstand method.Typical DC porcelain insulator strings and composite insulators were used as specimens.The results indicate that the average flashover voltage and the minimum flashover voltage obtained by the average flashover voltage method and the minimum flashover voltage method,respectively,obey a normal distribution.The 50% flashover voltage could be gained by the two methods with a minimal test number of nine and were about 8.0%～9.8% and 3.8%～5.9% respectively higher than that gained by the 50% withstand method.This justified the feasibility of employing the Ucurve method and the average flashover voltage method to study the flashover characteristics of iced insulators and their affecting factors.

引用

页码：2051 / 2058

页数：8

共 8 条

[1]

高压直流输电线路的覆冰闪络特性 [J].