Study of Partial Discharge Detection Method of XLPE Cable Terminates During AC Withstand Voltage Test and Analysis of Real Fault Diagnosis Cases

CHEN Zhiping; QIU Taihong; LI Guowei; WANG Junbo; HE Shenghong; DONG Di

doi:10.13296/j.1001-1609.hva.2015.02.011

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Study of Partial Discharge Detection Method of XLPE Cable Terminates During AC Withstand Voltage Test and Analysis of Real Fault Diagnosis Cases

更新时间：2025-04-26

- Study of Partial Discharge Detection Method of XLPE Cable Terminates During AC Withstand Voltage Test and Analysis of Real Fault Diagnosis Cases
- High VoltageApparatus Vol. 51, Issue 2, Pages: 73-77+83(2015)
- 作者机构：
  
  1. 华北电力大学电气与电子工程学院
  2. 广东电网有限责任公司佛山供电局
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.02.011
  CLC： TM75
- Published：2015
- 稿件说明：
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[1]陈志平,邱太洪,李国伟,王俊波,何胜红,董镝.XLPE电缆终端耐压局放方法研究及实际故障诊断案例分析[J].高压电器,2015,51(02):73-77+83.

CHEN Zhiping, QIU Taihong, LI Guowei, et al. Study of Partial Discharge Detection Method of XLPE Cable Terminates During AC Withstand Voltage Test and Analysis of Real Fault Diagnosis Cases[J]. High voltageapparatus, 2015, 51(2): 73-77+83.
[1]陈志平,邱太洪,李国伟,王俊波,何胜红,董镝.XLPE电缆终端耐压局放方法研究及实际故障诊断案例分析[J].高压电器,2015,51(02):73-77+83. DOI： 10.13296/j.1001-1609.hva.2015.02.011.

CHEN Zhiping, QIU Taihong, LI Guowei, et al. Study of Partial Discharge Detection Method of XLPE Cable Terminates During AC Withstand Voltage Test and Analysis of Real Fault Diagnosis Cases[J]. High voltageapparatus, 2015, 51(2): 73-77+83. DOI： 10.13296/j.1001-1609.hva.2015.02.011.

摘要

笔者对基于脉冲电流法的高压电缆终端中局部放电测试方法进行了研究

通过对两种试验接线下的等值电路进行了理论分析

得出了判别局放来源的判据

对比发现三相并联加压在提高试验效率的同时将显著提高测试灵敏;并将该方法运用于现场实际

针对佛山某110 kV XLPE电缆终端红外测温中出现异常的情况

应用三相并联加压局放检测方法及判据进行局部放电测试

确定了电缆终端B相内部存在局部放电。最后通过对电缆终端进行解体发现其内部严重受潮

进一步验证了高频脉冲电流三相并联加压局放检测方法及判据在XLPE电缆终端带电测试的有效性及判据的实用性。

Abstract

The testing and detecting method to partial discharge in high voltage cable terminate based on pulse current method is investigated in this paper. Theoretical analysis of the equivalent circuits of two kinds of wirings is made and the criterion how to distinguish the partial discharge source is determined.Through comparison

it is found that three-phase testing would not only increase the testing efficiency but also increase the detection sensitivity. Aiming to the case of the anomalies appeared in the infrared temperature measurement to 110 kV XLPE cable terminates in Foshan

the above three-phase testing is applied

and the partial discharge in phase B is detected. The dissection of the cable terminates shows that it is seriously damped. The validity and practicability of the partial discharge detection method of three-phase voltage withstand test with high frequency pulse current to XPLE terminates are verified.

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