AC Flashover Performance of Contaminated Insulators in Hot Water Vapor Washing

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AC Flashover Performance of Contaminated Insulators in Hot Water Vapor Washing

更新时间：2025-07-09

- AC Flashover Performance of Contaminated Insulators in Hot Water Vapor Washing
- Vol. 43, Issue 12, Pages: 96-100(2009)
- 作者机构：
  
  西安交通大学电力设备电气绝缘国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM84
- Online First：10 December 2009，
  
  Published：2009
- 稿件说明：
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AC Flashover Performance of Contaminated Insulators in Hot Water Vapor Washing[J]. 2009, 43(12): 96-100.
DOI：

AC Flashover Performance of Contaminated Insulators in Hot Water Vapor Washing[J]. 2009, 43(12): 96-100. DOI：

摘要

针对带电水蒸气清洗绝缘子污秽进行了试验研究

绘制了3种不同绝缘子随盐密变化的平均闪络电压、闪络电压梯度曲线和不同清洗方式下的闪络电压曲面

并进行了带电水蒸气冲洗污秽绝缘子时闪络电压的拟合计算和影响因素分析.结果表明:在相同盐密下

FXBW4-35型绝缘子时的闪络电压和闪络梯度最高

XP-70型绝缘子次之

FC-70型绝缘子最低; 幂函数可拟合带电水蒸气清洗污秽绝缘子时的闪络电压

但非最优拟合函数; 采用自下而上清洗方式闪络电压最高; 绝缘子污秽盐密低于4×10

-4

g/cm

无过电压出现情况下

带电水蒸气清洗可保证系统安全.

Abstract

The experiments of washing insulator contamination with hot water vapor are conducted to plot the average flashover voltage and flashover gradient curves of three insulators

calculate the flashover voltage

and analyze the influencing factors of flashover voltage. The results show that the flashover voltage and flashover gradient of FXBW4-35 insulators are highest

and those of XP-70 insulators are higher than FC-70 insulators. Power function can fit the flashover voltage of composite insulators washed by hot water vapor but not an optimum fitting function

the flashover voltage of insulators washed from bottom to top gets the highest. No overvoltage occurs to ensure the system security in the washing as the equivalent salt deposit density below 4×10

-4

g/cm

关键词

Keywords

references

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