Research of the Effect of Electromagnetic Interference on Secondary Equipment in High Voltage Switchgear

ZHANG Yiming; LI Shaohua; JIN Guangyao; YU Tongwei; GUO Yujing; SONG Yakai

doi:10.13296/j.1001-1609.hva.2017.02.030

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Research of the Effect of Electromagnetic Interference on Secondary Equipment in High Voltage Switchgear

更新时间：2025-04-26

- Research of the Effect of Electromagnetic Interference on Secondary Equipment in High Voltage Switchgear
- High VoltageApparatus Vol. 53, Issue 2, Pages: 191-198(2017)
- 作者机构：
  
  1. 平高集团有限公司
  2. 辽宁省电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.02.030
  CLC： TM63;TM595
- Published：2017
- 稿件说明：
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[1]张一茗,李少华,金光耀,于同伟,郭煜敬,宋亚凯.电磁干扰对智能高压开关二次设备的影响研究[J].高压电器,2017,53(02):191-198.

ZHANG Yiming, LI Shaohua, JIN Guangyao, et al. Research of the Effect of Electromagnetic Interference on Secondary Equipment in High Voltage Switchgear[J]. High voltageapparatus, 2017, 53(2): 191-198.
[1]张一茗,李少华,金光耀,于同伟,郭煜敬,宋亚凯.电磁干扰对智能高压开关二次设备的影响研究[J].高压电器,2017,53(02):191-198. DOI： 10.13296/j.1001-1609.hva.2017.02.030.

ZHANG Yiming, LI Shaohua, JIN Guangyao, et al. Research of the Effect of Electromagnetic Interference on Secondary Equipment in High Voltage Switchgear[J]. High voltageapparatus, 2017, 53(2): 191-198. DOI： 10.13296/j.1001-1609.hva.2017.02.030.

摘要

智能一次设备在智能变电站的推广应用

为电力系统引入了大量的二次设备

其工作于一次设备产生的强电磁干扰环境中

易于受到一次设备侧强干扰的影响而发生故障。由隔离开关触头操作引起的暂态地电位升高

其产生的过电压幅值更高

对二次设备可能产生的干扰也更大。文中对252 kV智能GIS隔离开关开合母线充电电流试验中二次设备信号线上产生的电磁干扰进行了测量

并对数据进行了分析

表明:TEV传播至二次设备处会造成比较高度耦合电压

试验中实测超过1 kV

可能造成二次设备的误动或故障;采用浪涌保护器吸收二次设备信号传输线上的电压行波

能够有效降低正负两方向的最大电压幅值

抑制效果超过30%。

Abstract

Popularization and application of smart primary equipment in Smart Substation

introduces plenty of secondary equipments for power system

which operate in strong electromagnetic interference environment produced by primary equipment

and are easily affected by strong interference of primary equipment and failure. Transient ground potential rise（TGPR）caused by operating disconnector

produces higher overvoltage magnitude

and larger interference for secondary equipment. In this paper we measure the electromagnetic interference caused at signal line of secondary equipment during disconnector switching bus charging current of 252 kV intelligent GIS

and the analysis indicates:TEV may cause higher coupling voltage

measured value is over 1 kV in test

may give rise to malfunction or fault of secondary equipment;Adopting surge protective device to absorb voltage traveling wave

can effectively reduce positive and negative maximum voltage amplitude

restrain effect is more than 30%.

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