Experimental Study on Directional Coupler Sensor in On-site Partial Discharge Measurement of 110kV XLPE Cable

GONG Dai; SUN Jing; KONG Dewu; ZHAO Ziyu

doi:10.13296/j.1001-1609.hva.2014.11.009

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Experimental Study on Directional Coupler Sensor in On-site Partial Discharge Measurement of 110kV XLPE Cable

更新时间：2025-04-26

- Experimental Study on Directional Coupler Sensor in On-site Partial Discharge Measurement of 110kV XLPE Cable
- High VoltageApparatus Vol. 50, Issue 11, Pages: 51-56(2014)
- 作者机构：
  
  1. 上海交通大学电子信息与电气工程学院
  2. 2. 上海慧东电气有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2014.11.009
  CLC： TM855
- Published：2014
- 稿件说明：
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[1]宫黛,孙静,孔德武,赵子玉.110kV XLPE电缆局部放电在线监测的方向耦合器技术实验研究[J].高压电器,2014,50(11):51-56.

GONG Dai, SUN Jing, KONG Dewu, et al. Experimental Study on Directional Coupler Sensor in On-site Partial Discharge Measurement of 110kV XLPE Cable[J]. High voltageapparatus, 2014, 50(11): 51-56.
[1]宫黛,孙静,孔德武,赵子玉.110kV XLPE电缆局部放电在线监测的方向耦合器技术实验研究[J].高压电器,2014,50(11):51-56. DOI： 10.13296/j.1001-1609.hva.2014.11.009.

GONG Dai, SUN Jing, KONG Dewu, et al. Experimental Study on Directional Coupler Sensor in On-site Partial Discharge Measurement of 110kV XLPE Cable[J]. High voltageapparatus, 2014, 50(11): 51-56. DOI： 10.13296/j.1001-1609.hva.2014.11.009.

摘要

随着电力电缆广泛应用于城市电网

开展电缆的局部放电监测研究对电力系统安全稳定运行具有越来越重要的意义。笔者所研究的电缆局部放电监测方法——方向耦合器法是一种局部放电定位技术。笔者在工频下对方向偶合器工作原理进行了试验验证

并设计制作了方向耦合器

然后模拟产生局部放电高频电流脉冲

于110 kV XLPE电缆上进行试验

验证了方向偶合器测量局部放电脉冲方向的可行性。

Abstract

With wide application of power cables in urban power grid

it is necessary to study partial discharge measurement of the power cables for safe and stable operation of the power system. In this paper

a directional coupler sensor（DCS）

which is a kind of partial discharge location technology

is proposed for the partial discharge measurement of the power cable. The working principle of DCS is verified by an experiment in power frequency condition. Then high-frequency current pulse of partial discharge is simulated for a test of XLPE cable

the result verifies the feasibility of DCS for measuring partial discharge pulse direction.

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