Key Technologies Research for the Installation and Field Test of ±800 kV Wall Bushing

PAN Guo-hong1; ZHU Hua-yan2

doi:10.13296/j.1001-1609.hva.2013.02.005

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Key Technologies Research for the Installation and Field Test of ±800 kV Wall Bushing

更新时间：2025-04-26

- Key Technologies Research for the Installation and Field Test of ±800 kV Wall Bushing
- High VoltageApparatus Vol. 49, Issue 2, Pages: 98-102(2013)
- 作者机构：
  
  1. 中国南方电网超高压输电公司
  2. 黔西南民族职业技术学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2013.02.005
  CLC： F426.61
- Published：2013
- 稿件说明：
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[1]潘国洪,朱华艳.±800kV直流穿墙套管安装和现场试验关键技术研究[J].高压电器,2013,49(02):98-102.

PAN Guo-hong1, ZHU Hua-yan2. Key Technologies Research for the Installation and Field Test of ±800 kV Wall Bushing[J]. High voltageapparatus, 2013, 49(2): 98-102.
[1]潘国洪,朱华艳.±800kV直流穿墙套管安装和现场试验关键技术研究[J].高压电器,2013,49(02):98-102. DOI： 10.13296/j.1001-1609.hva.2013.02.005.

PAN Guo-hong1, ZHU Hua-yan2. Key Technologies Research for the Installation and Field Test of ±800 kV Wall Bushing[J]. High voltageapparatus, 2013, 49(2): 98-102. DOI： 10.13296/j.1001-1609.hva.2013.02.005.

摘要

±800kV直流穿墙套管是特高压直流输电的关键设备之一

±800kV云南—广东特高压直流输电工程中的特高压直流穿墙套管在世界范围内属于首次研发和使用。介绍了±800kV直流穿墙套管的结构及其主要技术参数

给出了套管及其空心复合绝缘子的技术要求

重点阐述了套管的安装及现场试验

对直流耐压试验过程中出现的贯穿性闪络放电问题进行了阐述并从套管的外绝缘裕度、环境条件以及均压环的配置等方面分析了原因

介绍了其在新工程中外绝缘裕度的改进措施

为特高压直流穿墙套管的设计、制造提供依据。

Abstract

The ±800 kV DC bushing is one of the most important equipment for the ±800 kV DC Transmission Project.The ±800 kV DC bushing used in the Yunnan-Guangdong Line ±800 kV DC Transmission Project is the first ±800 kV DC bushing in the world.This paper describes the dimension and inlet configuration of 800 kV bushing

the technical demands for the bushing and composite insulator are presented.The key technologies for field installation and test are given

and the flashover appeared in the DC withstander test and the insulation margin

environment;grading ring are discussed for this problem

and the improvement measure of insulation margin in the new project is also given

which is very helpful for the design and manufacture of ±800 kV DC bushing.

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