Analysis of Operating Performance of Composite Insulators in ±800 kV and ±500 kV DC Tension Strings

LI Xiaochen; YUAN Chao; ZHANG Fuchun; ZHAO Huazhong; YAN Caisheng; XIE Congzhen

doi:10.13296/j.1001-1609.hva.2015.08.004

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Analysis of Operating Performance of Composite Insulators in ±800 kV and ±500 kV DC Tension Strings

更新时间：2025-04-26

- Analysis of Operating Performance of Composite Insulators in ±800 kV and ±500 kV DC Tension Strings
- High VoltageApparatus Vol. 51, Issue 8, Pages: 24-28(2015)
- 作者机构：
  
  1. 中国南方电网超高压输电公司广州局
  2. 华南理工大学电力学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.08.004
  CLC： TM216
- Published：2015
- 稿件说明：
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[1]黎晓辰,袁超,张富春,赵华忠,颜才升,谢从珍.超、特高压直流耐张串复合绝缘子运行性能研究[J].高压电器,2015,51(08):24-28.

LI Xiaochen, YUAN Chao, ZHANG Fuchun, et al. Analysis of Operating Performance of Composite Insulators in ±800 kV and ±500 kV DC Tension Strings[J]. High voltageapparatus, 2015, 51(8): 24-28.
[1]黎晓辰,袁超,张富春,赵华忠,颜才升,谢从珍.超、特高压直流耐张串复合绝缘子运行性能研究[J].高压电器,2015,51(08):24-28. DOI： 10.13296/j.1001-1609.hva.2015.08.004.

LI Xiaochen, YUAN Chao, ZHANG Fuchun, et al. Analysis of Operating Performance of Composite Insulators in ±800 kV and ±500 kV DC Tension Strings[J]. High voltageapparatus, 2015, 51(8): 24-28. DOI： 10.13296/j.1001-1609.hva.2015.08.004.

摘要

复合绝缘子由于其优异的耐污闪性能和良好的技术经济性而越来越多地应用在特高压直流输电线路中。为分析超、特高压直流耐张串复合绝缘子的运行性能

从而为实验室评价现场运行耐张串复合绝缘子的特性和状态提供指导

对8支超、特高压直流线路耐张串复合绝缘子进行了研究

主要包括憎水性测试、水煮及陡波试验、工频电压试验、密封性能试验、机械破坏性试验等。研究结果表明

在超、特高压直流线路已经挂网运行的耐张串复合绝缘子的憎水性能、电气性能和机械性能仍均良好;复合绝缘子可以应用于耐张串上。同时

对今后耐张串复合绝缘子的设计及运行提出建议。

Abstract

Composite insulator has good application prospects in ultra high voltage（UHV）DC transmission lines due to its excellent anti-pollution characteristic and high tech-economic efficiency. To analyze the performance characteristic of tension string consisted of ±800 k V and ±500 k V DC composite insulators

which could provide reference for evaluating the performance and the status of composite insulators in service

4 pieces of ±800 k V DC composite insulators and 4 pieces of ±500 k V DC composite insulators are selected to be tested. The detection items included pollution measurement

hydrophobicity test

water boiled test and steep front impulse test

power frequency withstand voltage test

seal performance test

mechanical destructive test

et al. The results show that in UHV DC lines has been running for years of tension string composite insulators hydrophobicity

electric performance and mechanical performance are still good;Composite insulator can be used in the tension string. Suggestion for the design and operation of tension string of composite insulator in the future are proposed.

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