Calculation and Analysis on Surface Electric Field Intensity of Bundled Conductors for UHVAC Transmission Lines

YANG Tao; ZHAO Kejiang; LIU Yugen; TIAN Jinhu

doi:10.13296/j.1001-1609.hva.2015.12.002

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Calculation and Analysis on Surface Electric Field Intensity of Bundled Conductors for UHVAC Transmission Lines

更新时间：2025-04-26

- Calculation and Analysis on Surface Electric Field Intensity of Bundled Conductors for UHVAC Transmission Lines
- High VoltageApparatus Vol. 51, Issue 12, Pages: 6-13(2015)
- 作者机构：
  
  1. 国网重庆市电力公司
  2. 国网重庆市电力公司检修分公司
  3. 重庆大学输配电装备及系统安全与新技术国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.12.002
  CLC： TM751
- Published：2015
- 稿件说明：
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[1]杨滔,赵克江,刘渝根,田金虎.特高压交流输电线路分裂导线表面电场计算分析[J].高压电器,2015,51(12):6-13.

YANG Tao, ZHAO Kejiang, LIU Yugen, et al. Calculation and Analysis on Surface Electric Field Intensity of Bundled Conductors for UHVAC Transmission Lines[J]. High voltageapparatus, 2015, 51(12): 6-13.
[1]杨滔,赵克江,刘渝根,田金虎.特高压交流输电线路分裂导线表面电场计算分析[J].高压电器,2015,51(12):6-13. DOI： 10.13296/j.1001-1609.hva.2015.12.002.

YANG Tao, ZHAO Kejiang, LIU Yugen, et al. Calculation and Analysis on Surface Electric Field Intensity of Bundled Conductors for UHVAC Transmission Lines[J]. High voltageapparatus, 2015, 51(12): 6-13. DOI： 10.13296/j.1001-1609.hva.2015.12.002.

摘要

为研究特高压交流输电线路分裂导线表面电场强度

笔者基于偶极子法

计算了4种典型塔型特高压交流输电线路分裂导线表面电场强度

进而分析讨论了导线对地平均高度、导线布置方式、分裂间距、相间距、分裂数、子导线截面、相序、架设屏蔽线等因素对分裂导线表面电场强度影响的规律和特点。结果表明:分裂导线各子导线由于空间位置不同使得其表面最大电场也不同;分裂导线分裂数、截面对导线表面最大电场的影响最大

导线对地平均高度、分裂间距、相间距离及布置方式对其表面最大电场强度的影响相对较小;双回线路相序排列方式对上、下相分裂导线表面电场强度影响较大

对中相导线表面电场影响相对较小;架设屏蔽线会增大分裂导线表面电场强度。

Abstract

According to the actual situation of the UHVAC transmission lines

the surface electric field intensity on the bundled conductors is calculated based on the dipole method. Then

the effects of the factors

such as the average height of lines to ground

layout

bundled distance

distance among phases

number of bundles

cross-section area of a conductor

phase sequence

and shielding lines

on the surface electric field intensity of bundled conductors are analyzed and discussed. The results show that: 1 The surface electric field intensity of the bundled conductors is different; 2 The number of bundles and cross-section area of a conductor impose significant effects on the surface electric field intensity

while other factors

such as the average height of lines to ground

layout

bundled distance

and distance among phases

impose relatively smaller effects on the surface electric field intensity; 3 The phase sequence has significant effect on the surface electric field intensity of the top and bottom phases of transmission lines

and has smaller effect on the middle phase; and 4 The shielding lines can enhance the surface electric field intensity of bundled conductors.

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