Simulation of Online Monitoring of Power Cable Insulation Using Grounding Current Method

DUAN Jiang-dong1; CHEN Tian-xiang1; ZHANG Bao-hui1; YANG Xiao-xian1

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Simulation of Online Monitoring of Power Cable Insulation Using Grounding Current Method

更新时间：2025-04-26

- Simulation of Online Monitoring of Power Cable Insulation Using Grounding Current Method
- High VoltageApparatus Issue 1, Pages: 29-31+35(2005)
- 作者机构：
  
  1.   西安交通大学电气工程学院
  2.   西安交通大学电气工程学院陕西西安710049广西大学电气工程学院
  3.   广西南宁530004
  4.   陕西西安710049甘肃电力公司
  5.   甘肃兰州730050
  6.   陕西西安710049
  7.   陕西西安710049宁夏电力公司
  8.   宁夏银川750001
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM855
- Published：2005
- 稿件说明：
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[1]段建东,陈天翔,张保会,杨晓宪.用接地线电流法进行电力电缆绝缘在线监测的仿真计算[J].高压电器,2005(01):29-31+35.

DUAN Jiang-dong1, CHEN Tian-xiang1, ZHANG Bao-hui1, et al. Simulation of Online Monitoring of Power Cable Insulation Using Grounding Current Method[J]. High voltageapparatus, 2005, (1): 29-31+35.
[1]段建东,陈天翔,张保会,杨晓宪.用接地线电流法进行电力电缆绝缘在线监测的仿真计算[J].高压电器,2005(01):29-31+35. DOI：

DUAN Jiang-dong1, CHEN Tian-xiang1, ZHANG Bao-hui1, et al. Simulation of Online Monitoring of Power Cable Insulation Using Grounding Current Method[J]. High voltageapparatus, 2005, (1): 29-31+35. DOI：

摘要

为单相电力电缆接地电容电流、三相电力电缆接地不平衡电流建立了电缆的分布参数仿真模型

计算了电力电缆在运行条件下其接地电容电流、接地不平衡电流对电缆绝缘缺陷状况反映的有效性与灵敏性。仿真结果表明

在线监测得到的接地电容电流或接地不平衡电流与绝缘缺陷有很高的正相关性

并且灵敏性较高

其灵敏性与电缆负载、缺陷位置等有关

三相电力电缆接地不平衡电流反映缺陷的灵敏度要明显高于接地电容电流。开发的基于ATP的仿真模型及相应的Matlab分析软件可以作为一种良好的学习型软件

用以指导现场在线监测测量结果的分析及故障部位的确定。

Abstract

This paper sets up simulation models with distributed parameters for power cable to calculate grounding capacitive current in single-phase power cable and grounding imbalance current in three-phase power cable

and analyses the effectiveness and sensitivity of the grounding current to the insulation defect. The simulation results show that the cable insulation defect is positively correlative with both the grounding capacitive current and the grounding imbalance current

moreover

the latter is more sensitive. The sensitivity is relative to the load and the defect location. The simulation models and software based on ATP and Matlab

as a nice learning tool

are also useful to analyze the measurement results on site and guide to determine the location of cable fault.

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