Study on Secondary Arc Current of Four-circuit on the Same Tower Lines of AC 1 000 kV and 500 kV/220 kV

TONG Tao; GU Danzhen; CUI Yong; ZHAO Dandan; HUANG Hua

doi:10.13296/j.1001-1609.hva.2017.11.031

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Study on Secondary Arc Current of Four-circuit on the Same Tower Lines of AC 1 000 kV and 500 kV/220 kV

更新时间：2025-04-26

- Study on Secondary Arc Current of Four-circuit on the Same Tower Lines of AC 1 000 kV and 500 kV/220 kV
- High VoltageApparatus Vol. 53, Issue 11, Pages: 191-196(2017)
- 作者机构：
  
  1. 上海电力学院电气工程学院
  2. 国网上海市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.2017.11.031
  CLC： TM75
- Published：2017
- 稿件说明：
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[1]童涛,顾丹珍,崔勇,赵丹丹,黄华.交流1000kV与500kV/220kV同塔四回线路的潜供电流问题研究[J].高压电器,2017,53(11):191-196.

TONG Tao, GU Danzhen, CUI Yong, et al. Study on Secondary Arc Current of Four-circuit on the Same Tower Lines of AC 1 000 kV and 500 kV/220 kV[J]. High voltageapparatus, 2017, 53(11): 191-196.
[1]童涛,顾丹珍,崔勇,赵丹丹,黄华.交流1000kV与500kV/220kV同塔四回线路的潜供电流问题研究[J].高压电器,2017,53(11):191-196. DOI： 10.13296/j.1001-1609.hva.2017.11.031.

TONG Tao, GU Danzhen, CUI Yong, et al. Study on Secondary Arc Current of Four-circuit on the Same Tower Lines of AC 1 000 kV and 500 kV/220 kV[J]. High voltageapparatus, 2017, 53(11): 191-196. DOI： 10.13296/j.1001-1609.hva.2017.11.031.

摘要

同塔四回线路回路多、间距小

线路间电磁耦合作用更强

使得潜供电流问题更加突出。针对这一问题

分析了同塔四回线路潜供电流产生机理

采用电磁暂态仿真软件ATP-EMTP建立了交流双回1 000 kV和500 kV/220 kV线路同塔四回线路的模型并计算得到多种运行方式下各电压等级线路的潜供电流与恢复电压。结果表明

500 kV/220 kV线路对1 000 kV线路潜供电流及恢复电压影响较小

但1 000 kV线路对500 kV/220 kV线路影响较大。在此基础上提出各电压等级线路的单相重合闸的推荐时间。可作为交流特高压跨电压等级同塔四回线路工程设计和建设运行的技术参考。

Abstract

For four-circuit transmission lines with mixed voltages on the same tower

the electromagnetic interaction between lines is stronger and makes the problem of the secondary arc current complicated.To solve it

the mechanism of the secondary arc current has been discussed

a hybrid tower model that consist of double-circuit1 000 kV lines and double-circuit 500 kV or 220 kV lines has been built in the electromagnetic transient program ATP-EMTP and the secondary arc current and recovery voltage of different voltage lines under different operation modes has been calculated.The results indicate that 500 kV or 220 kV lines have little influence on 1 000 kV lines while the 1 000 kV lines affect the 500 kV or 220 kV lines a lot.Furthermore

this study presents the recomm-ended single-phase reclosing time of different voltages and it can be reference for the design and construction.

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