Test Voltage Optimization and Safety Margin of Insulation Tools for Live Working of UHV AC Transmission Lines

Kai ZHU; Yuqun FANG; Guangkai YU

doi:10.11930/j.issn.1004-9649.202006146

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Test Voltage Optimization and Safety Margin of Insulation Tools for Live Working of UHV AC Transmission Lines

Power System | 更新时间：2025-06-18

- Test Voltage Optimization and Safety Margin of Insulation Tools for Live Working of UHV AC Transmission Lines
- Electric Power Vol. 54, Issue 7, Pages: 132-140(2021)
- 作者机构：
  
  1.国网浙江省电力有限公司金华供电公司，浙江金华　321000
  2.中国电力科学研究院有限公司，湖北武汉　430000
- 作者简介：
- 基金信息：
  
  This work is supported by Science and Technology Project of SGCC (Development of UHV Special Safety Equipment and Research and Application of Key Technologies for Process Control and Testing of Electric Safety Equipment, No.SGSDDKOOKJJS1700077) and Science and Technology Project of State Grid Zhejiang Electric Power Co., Ltd. (Research and Application of Key Technology for Safety Maintenance of High Voltage Transmission Tower with Common Location of Mobile Base Station, No.5211JH18008A)
- DOI：10.11930/j.issn.1004-9649.202006146
  CLC：
- Received：11 June 2020，
  
  Revised：2020-09-28，
  
  Published：05 July 2021
- 稿件说明：
移动端阅览
Kai ZHU, Yuqun FANG, Guangkai YU. Test Voltage Optimization and Safety Margin of Insulation Tools for Live Working of UHV AC Transmission Lines[J]. Electric power, 2021, 54(7): 132-140.
DOI：

Kai ZHU, Yuqun FANG, Guangkai YU. Test Voltage Optimization and Safety Margin of Insulation Tools for Live Working of UHV AC Transmission Lines[J]. Electric power, 2021, 54(7): 132-140. DOI： 10.11930/j.issn.1004-9649.202006146.

摘要

针对1 000 kV特高压交流输电线路带电作业绝缘工器具的试验电压偏严格，造成工器具非正常损坏的问题，深入分析了1 000 kV交流输电线路带电作业工况下的工频及操作过电压水平，同时开展了1 000 kV特高压带电作业绝缘工器具试验的电压选取及其安全裕度研究。综合分析后提出了较为合理的试验电压以及安全裕度范围，并对提出的修订值进行了工频耐压验证试验、绝缘材料电气性能验证试验以及带电作业安全性试验验证等，充分分析并证明了其合理性。

Abstract

In view of the problem that the test voltage of live working insulation tools for 1 000 kV UHV AC transmission lines is too high

causing abnormal damage to the work tools

we made an in-depth analysis of the power frequency and operating overvoltage level for the live working condition of 1 000 kV AC transmission lines. And at the same time

a research was carried out on the voltage selection and safety margin for the 1 000 kV UHV live working insulation tool test. After comprehensive analysis

the reasonable test voltage and safety margin range are put forward

and the proposed revision values are verified by a number of tests including power frequency withstand voltage test

insulation material electrical performance test and live working safety test

which have fully proved the rationality of the proposed revision values.

关键词

Keywords

references

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