Application of Ultrasonic Partial Discharge Detection Technology on the Particle Defect Diagnosis of a 500 kV GIS Basin-insulator

SHEN Qiang; YANG Hailong; LIU Hang; WEI Gang; GAO Chao; YANG Junwei

doi:10.13296/j.1001-1609.hva.2017.09.039

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Application of Ultrasonic Partial Discharge Detection Technology on the Particle Defect Diagnosis of a 500 kV GIS Basin-insulator

更新时间：2025-04-26

- Application of Ultrasonic Partial Discharge Detection Technology on the Particle Defect Diagnosis of a 500 kV GIS Basin-insulator
- High VoltageApparatus Vol. 53, Issue 9, Pages: 228-233(2017)
- 作者机构：
  
  国网重庆市电力公司检修分公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.09.039
  CLC： TM855
- Published：2017
- 稿件说明：
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[1]申强,杨海龙,刘航,魏钢,高超,杨俊伟.超声波局部放电检测技术在500 kV GIS盆式绝缘子上颗粒缺陷诊断中的应用[J].高压电器,2017,53(09):228-233.

SHEN Qiang, YANG Hailong, LIU Hang, et al. Application of Ultrasonic Partial Discharge Detection Technology on the Particle Defect Diagnosis of a 500 kV GIS Basin-insulator[J]. High voltageapparatus, 2017, 53(9): 228-233.
[1]申强,杨海龙,刘航,魏钢,高超,杨俊伟.超声波局部放电检测技术在500 kV GIS盆式绝缘子上颗粒缺陷诊断中的应用[J].高压电器,2017,53(09):228-233. DOI： 10.13296/j.1001-1609.hva.2017.09.039.

SHEN Qiang, YANG Hailong, LIU Hang, et al. Application of Ultrasonic Partial Discharge Detection Technology on the Particle Defect Diagnosis of a 500 kV GIS Basin-insulator[J]. High voltageapparatus, 2017, 53(9): 228-233. DOI： 10.13296/j.1001-1609.hva.2017.09.039.

摘要

带电检测技术在输变电设备状态检测中发挥着越来越重要的作用。为更好地开展对电力设备的带电检测

文中重点介绍了超声波检测技术原理及常见的颗粒缺陷典型图谱。通过对某500 kV GIS变电站隔离式盆式绝缘子上颗粒检测与诊断

提供了一套与常见典型图谱有较大差异的检测图谱

总结得出了颗粒缺陷检测流程和超声波、特高频检测信号的规律

给出了危害性评估方法

完善了GIS颗粒缺陷诊断判断标准

为颗粒缺陷（特别是盆式绝缘子等非金属部件上的颗粒）检测诊断提供参考借鉴。

Abstract

Live detection technology plays an increasingly important role in state detection of power transmission and transformation equipment. To better conduct live detection of electrical equipment

this paper introduces the principle of ultrasonic detection technology and the typical atlas of common particle defects. The detection and diagnosis of the particles on the isolated basin-insulator in a 500 kV GIS substation are conducted to obtain an atlas

which is quite different from the typical atlas. According to the obtained atlas

the detection process of particle defects and the features of ultrasonic and UHF signals are concluded. Furthermore

a risk evaluation method is proposed

and the diagnostic criteria of GIS particle defects is improved. This research may provide a reference for detection and diagnosis of particle defects

especially the particle defects on the non-metallic parts

such as basin-insulator.

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