Characteristics of Partial Discharge on Typical Defects of XLPE Cable Under AC Voltage and Damped AC Voltage

ZHANG Long; HUANG Chenxi; ZHANG Wei; LI Hongjie

doi:10.13296/j.1001-1609.hva.2015.08.007

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Characteristics of Partial Discharge on Typical Defects of XLPE Cable Under AC Voltage and Damped AC Voltage

更新时间：2025-04-26

- Characteristics of Partial Discharge on Typical Defects of XLPE Cable Under AC Voltage and Damped AC Voltage
- High VoltageApparatus Vol. 51, Issue 8, Pages: 43-48+53(2015)
- 作者机构：
  
  西安交通大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.08.007
  CLC： TM855
- Published：2015
- 稿件说明：
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[1]张龙,黄晨曦,张伟,李洪杰.交流和振荡波电压下XLPE电缆典型缺陷局部放电特性研究[J].高压电器,2015,51(08):43-48+53.

ZHANG Long, HUANG Chenxi, ZHANG Wei, et al. Characteristics of Partial Discharge on Typical Defects of XLPE Cable Under AC Voltage and Damped AC Voltage[J]. High voltageapparatus, 2015, 51(8): 43-48+53.
[1]张龙,黄晨曦,张伟,李洪杰.交流和振荡波电压下XLPE电缆典型缺陷局部放电特性研究[J].高压电器,2015,51(08):43-48+53. DOI： 10.13296/j.1001-1609.hva.2015.08.007.

ZHANG Long, HUANG Chenxi, ZHANG Wei, et al. Characteristics of Partial Discharge on Typical Defects of XLPE Cable Under AC Voltage and Damped AC Voltage[J]. High voltageapparatus, 2015, 51(8): 43-48+53. DOI： 10.13296/j.1001-1609.hva.2015.08.007.

摘要

局部放电诊断技术被广泛应用在电力电缆绝缘状态的监测之中。为了深入了解电缆的局部放电特性

文中通过仿真实验设计并制作出内部气隙放电、针板放电、沿面放电、悬浮放电4种典型缺陷模型

在交流和振荡波电压下分别对这4种模型的局部放电进行测量

对比分析不同缺陷的局部放电起始电压、熄灭电压、放电波形、频谱图、局放模式等特征参量。各种缺陷的局部放电统计特征具有较为明显的差异

为进一步研究电力电缆局部放电模式识别和绝缘老化特征提供了参考。

Abstract

Partial discharge（PD）diagnosis techniques have been widely used for monitoring insulation condition of power cables. To investigate the characteristics of partial discharge in power cable

four typical defect models were established based on the simulation results for generating internal air discharge

needle-plate discharge

surface discharge and suspended discharge. The four kinds of PDs were measured under AC voltage and damped AC voltage to comparatively analyze their characteristic parameters

such as the PD inception voltage

the PD extinction voltage

the pulse current waveform

the frequency spectrogram

and the PD pattern. The results indicate that obvious differences exist in the statistical characteristics of the PDs on the four defect models. This study may provide a reference for further research on PD pattern recognition and insulation aging characteristics of power cable.

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