Functional Analysis of High-voltage Cable Ground Current On-line Monitoring Device Based on Analog Experiment

CAO Junping; JIANG Yukuan; WANG Shaohua; LIU Haojun; REN Guangzhen; WANG Yuli

doi:10.13296/j.1001-1609.hva.2019.12.020

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Functional Analysis of High-voltage Cable Ground Current On-line Monitoring Device Based on Analog Experiment

更新时间：2025-04-26

- Functional Analysis of High-voltage Cable Ground Current On-line Monitoring Device Based on Analog Experiment
- High VoltageApparatus Vol. 55, Issue 12, Pages: 138-144(2019)
- 作者机构：
  
  1. 国网浙江省电力公司电力科学研究院
  2. 国网浙江省电力公司
  3. 中国电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.12.020
  CLC： TM75;TM933.1
- Published：2019
- 稿件说明：
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[1]曹俊平,蒋愉宽,王少华,刘浩军,任广振,王昱力.基于模拟试验的高压电缆接地电流在线监测装置功能校验分析[J].高压电器,2019,55(12):138-144.

CAO Junping, JIANG Yukuan, WANG Shaohua, et al. Functional Analysis of High-voltage Cable Ground Current On-line Monitoring Device Based on Analog Experiment[J]. High voltageapparatus, 2019, 55(12): 138-144.
[1]曹俊平,蒋愉宽,王少华,刘浩军,任广振,王昱力.基于模拟试验的高压电缆接地电流在线监测装置功能校验分析[J].高压电器,2019,55(12):138-144. DOI： 10.13296/j.1001-1609.hva.2019.12.020.

CAO Junping, JIANG Yukuan, WANG Shaohua, et al. Functional Analysis of High-voltage Cable Ground Current On-line Monitoring Device Based on Analog Experiment[J]. High voltageapparatus, 2019, 55(12): 138-144. DOI： 10.13296/j.1001-1609.hva.2019.12.020.

摘要

因接地系统缺陷引发的高压电缆故障时有发生

接地电流在线监测技术是进行接地系统缺陷检测的一种有效手段

但该技术在工程应用中仍面临许多问题

其有效性及精度尚需通过仿真模型进行试验校验。文中利用高压电缆状态仿真试验平台

构建了110 kV电缆模拟试验回路

通过升压和升流系统模拟实际运行工况

对高压电缆接地电流在线监测装置进行了功能校验分析。在不同电缆运行工况下

对在线监测装置传感器的发热、振动和噪声状态进行了实测和分析。当电缆本体和接地缆流经异常电流时

校验了在线监测装置的运行情况。实验结果表明

在线监测装置中采用的不同结构的接地电流传感器的发热、振动和噪声状态存在差别

对电缆系统的影响程度也不一致

针对发现的问题提出了防范措施

确保在线监测装置的安全有效应用。

Abstract

High voltage cable failure occurs frequently due to grounding system defects

ground current on-line monitoring technology is an effective way to detect the grounding system

however its engineering application still faces many problems and needs to be verified by simulation experiment.Based on the high voltage cable simulation platform

this article built a 110 kV cable simulation test circuit.Using boost and up-flow systems to simulate the actual operating conditions

the function verification analysis is carried out on the on-line monitoring device of high-voltage cable grounding current.Under different cable operating conditions

heating

vibration and noise state of the on-line monitoring device sensor was measured and analyzed.With abnormal current flowing through the cable body and ground cable through the on-line monitoring device’s operation state was verified.The results show that the heating

vibration and noise state of sensors with different structures are not the same

and their influence on the cable system is also inconsistent.Preventive methods are provided to guarantee the safety and effectiveness of the application of the on-line monitoring system.

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