Effect of ACSR on Suppressing Power Frequency Overvoltage of EHV Transmission System

LI Hong-yu1; HUANG Yan-yan2; SHI Wei3

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Effect of ACSR on Suppressing Power Frequency Overvoltage of EHV Transmission System

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- Effect of ACSR on Suppressing Power Frequency Overvoltage of EHV Transmission System
- High VoltageApparatus Issue 3, Pages: 186-188(2004)
- 作者机构：
  
  1.   北京邮电大学
  2.   株洲电力机车研究所
  3.   西安交通大学电气工程学院北京100876
  4.   湖南株洲412001
  5.   陕西西安710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM862
- Published：2004
- 稿件说明：
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[1]李红玉,黄燕艳,施围.良导体地线限制超高压输电系统工频过电压的作用[J].高压电器,2004(03):186-188.

LI Hong-yu1, HUANG Yan-yan2, SHI Wei3. Effect of ACSR on Suppressing Power Frequency Overvoltage of EHV Transmission System[J]. High voltageapparatus, 2004, (3): 186-188.
[1]李红玉,黄燕艳,施围.良导体地线限制超高压输电系统工频过电压的作用[J].高压电器,2004(03):186-188. DOI：

LI Hong-yu1, HUANG Yan-yan2, SHI Wei3. Effect of ACSR on Suppressing Power Frequency Overvoltage of EHV Transmission System[J]. High voltageapparatus, 2004, (3): 186-188. DOI：

摘要

通过比较不同型号良导体地线的波阻抗

分析了零序阻抗对不对称接地工频过电压的影响。计算了各种采用光缆复合架空地线情况下线路的工频过电压。指出利用良导体地线降低工频过电压可以减小线路并联补偿容量

降低安装成本和维护费用。最后分析了良导体地线降低工频过电压的制约因素。

Abstract

The influence of zero-sequence impedance on power-frequency overvoltage of asymmetric eathing fault is researched though comparing surge impedance of different types of ACSR as ground-return wires. The power-frequency overvoltage is calculated in various conditions with OPGW. It is lower for the smaller surge impedance of ACSR consequently

parallel compensation capacity could be decreased to save the cost. The restrictions of using ASCR to limit power-frequency overvoltage are analyzed too.

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