Turn Insulation Performance of Neutral Reactor Under 1000 kV UHV Alternating Current

LI Yuquan; KOU Xiaoshi; ZHENG Hanbo; WANG Wei; SHAO Yingbiao; MA Lun; LI Xiaogang; GUO Lei; XIE Wei

doi:10.13296/j.1001-1609.hva.2017.08.007

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Turn Insulation Performance of Neutral Reactor Under 1000 kV UHV Alternating Current

更新时间：2025-04-26

- Turn Insulation Performance of Neutral Reactor Under 1000 kV UHV Alternating Current
- High VoltageApparatus Vol. 53, Issue 8, Pages: 38-42(2017)
- 作者机构：
  
  国网河南省电力公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.08.007
  CLC： TM47
- Published：2017
- 稿件说明：
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[1]李予全,寇晓适,郑含博,王伟,邵颖彪,马伦,李晓纲,郭磊,谢伟.1000 kV特高压中性点电抗器匝间绝缘性能研究[J].高压电器,2017,53(08):38-42.

LI Yuquan, KOU Xiaoshi, ZHENG Hanbo, et al. Turn Insulation Performance of Neutral Reactor Under 1000 kV UHV Alternating Current[J]. High voltageapparatus, 2017, 53(8): 38-42.
[1]李予全,寇晓适,郑含博,王伟,邵颖彪,马伦,李晓纲,郭磊,谢伟.1000 kV特高压中性点电抗器匝间绝缘性能研究[J].高压电器,2017,53(08):38-42. DOI： 10.13296/j.1001-1609.hva.2017.08.007.

LI Yuquan, KOU Xiaoshi, ZHENG Hanbo, et al. Turn Insulation Performance of Neutral Reactor Under 1000 kV UHV Alternating Current[J]. High voltageapparatus, 2017, 53(8): 38-42. DOI： 10.13296/j.1001-1609.hva.2017.08.007.

摘要

文中主要研究了1000 kV特高压交流输电工程中使用的中性点电抗器的绝缘特性。首先

通过工频过电压分析和特高压工程系统调试期间实测数据

仿真分析了中性点电抗器在冲击电压下的电位分布;接着提出了用于考核中性点电抗器匝间绝缘性能的现场耐压试验方法

并对中性点电抗器在试验中动热稳定性进行了计算及校核

理论论证了现场耐压试验的可行性和适用性;最后文中用于考核特高压中性点电抗器绝缘性能的试验方法在现场得到验证。文中提出的应用于特高压中性点电抗器的现场匝间绝缘考核的试验方案可以作为今后交接试验的参考。

Abstract

To understand the insulation property of neutral reactor in 1000 kV UHV AC transmission project

the power frequency overvoltage was analyzed and the debugging data of the project were use to simulate the potential distribution of the neutral reactor under impulse voltage.Then

an on-site withstand voltage test method of turn insulation of neutral reactor was proposed

the dynamic stability and thermal stability of the neutral reactor in test process were calculated and checked

and the feasibility and applicability of the on-site withstand voltage test of turn insulation were proved theoretically.In addition

the proposed test method was verified in practical application.This test method is expected to be applied to hand over test of neutral reactor.

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