Research on Corona Inception Characteristics of 750 kV Transmission Line Conductors at Different Altitudes

L Fang-cheng; GENG Qing-zhong; ZHU Lei; LIU Yun-peng; ZHU Jun

doi:10.13296/j.1001-1609.hva.2013.09.003

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Research on Corona Inception Characteristics of 750 kV Transmission Line Conductors at Different Altitudes

更新时间：2025-04-26

- Research on Corona Inception Characteristics of 750 kV Transmission Line Conductors at Different Altitudes
- High VoltageApparatus Vol. 49, Issue 9, Pages: 1-6(2013)
- 作者机构：
  
  华北电力大学河北省输变电设备安全防御重点试验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2013.09.003
  CLC： TM755
- Published：2013
- 稿件说明：
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[1]律方成,耿庆忠,朱雷,刘云鹏,朱军.不同海拔下750kV输电线路导线起始电晕特性研究[J].高压电器,2013,49(09):1-6.

L Fang-cheng, GENG Qing-zhong, ZHU Lei, et al. Research on Corona Inception Characteristics of 750 kV Transmission Line Conductors at Different Altitudes[J]. High voltageapparatus, 2013, 49(9): 1-6.
[1]律方成,耿庆忠,朱雷,刘云鹏,朱军.不同海拔下750kV输电线路导线起始电晕特性研究[J].高压电器,2013,49(09):1-6. DOI： 10.13296/j.1001-1609.hva.2013.09.003.

L Fang-cheng, GENG Qing-zhong, ZHU Lei, et al. Research on Corona Inception Characteristics of 750 kV Transmission Line Conductors at Different Altitudes[J]. High voltageapparatus, 2013, 49(9): 1-6. DOI： 10.13296/j.1001-1609.hva.2013.09.003.

摘要

为了深入研究海拔0

000 m范围海拔对交流输电线路导线起始电晕特性的影响

基于可移动式电晕笼

在武汉、西宁、海北进行了交流6×LGJ-400/50导线的电晕特性试验

用紫外成像仪记录导线电晕放电后产生的光子数。利用"切线法"求取导线的电晕起始电压。通过武汉、西宁和海北3个海拔点导线在晴朗天气下的电晕起始电压测量结果

发现导线起晕电压随海拔升高而显著下降。海拔每升高1 000 m

导线起晕电压降低8.12%。且它们不适合用GB/T 2317.2—2000或GB/T 775.2—2003中校正金具和绝缘子公式进行海拔校正

得到了适合于6×LGJ-400/50导线的指数和线性海拔校正公式

误差

可为工程建设提供参考。

Abstract

In order to in-depth study the effect of attitude for corona inception characteristics of AC transmission lines conductors in the altitudes area ranging from 0 to 3 000 meters

based on a mobile corona cage

conducted a series of tests about the corona characteristics of AC 6×LGJ-400/50 conductors based on the mobile corona cage at Wuhan

Xining and Haibei respectively.The numbers of photons were detected after conductor corona discharge by the ultraviolet detection apparatus.According to the apparent change of photons number

corona inception voltages were acquired by the tangent method.Corona inception voltage is reduced about 8.12% if altitude rises 1 000 m.And it is found that the correction formulas of hardware and insulators in GB/T 2317.2—2000 and GB/T 775.2—2003 are not appropriate for altitude correction.Finally

the exponential and linear correction formulas suitable for 6×LGJ-400/50 conductors are introduced.The maximum error is less than 5%.It can provide a reference for the construction.

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