Research on anti-interference methods of switchgear ultrasonic PD detection

SUN Zhenhua; FENG Jinlong; OUYANG Li; ZOU Xuewei

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Research on anti-interference methods of switchgear ultrasonic PD detection

更新时间：2025-11-18

- Research on anti-interference methods of switchgear ultrasonic PD detection
- Vol. 36, Issue 2, Pages: 46-49(2016)
- 作者机构：
  
  国网湖南省电力公司衡阳供电分公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM591
- Published：2016
- 稿件说明：
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[1]孙振华,冯金茏,欧阳力,邹学伟.开关柜超声波局放检测抗干扰方法研究[J].湖南电力,2016,36(02):46-49.

SUN Zhenhua, FENG Jinlong, OUYANG Li, et al. Research on anti-interference methods of switchgear ultrasonic PD detection[J]. 2016, 36(2): 46-49.
[1]孙振华,冯金茏,欧阳力,邹学伟.开关柜超声波局放检测抗干扰方法研究[J].湖南电力,2016,36(02):46-49. DOI：

SUN Zhenhua, FENG Jinlong, OUYANG Li, et al. Research on anti-interference methods of switchgear ultrasonic PD detection[J]. 2016, 36(2): 46-49. DOI：

摘要

对存在局部放电的开关柜的超声波信号以及其他非局放的异常信号进行频谱分析

建立典型频谱库

从而找到用以区分干扰信号和局放信号的特征规律

提出一种开关柜超声波局放检测的抗干扰分析方法

为开关柜的缺陷定性以及停电诊断检修提供支持。

Abstract

In this article

an spectrum analysis is proposed and typical spectrum libraries are built by collecting the ultrasonic signals in the switchgears of partial discharge（ PD） and abnormal signals. Then the characteristics rules of distinguishing partial discharge signals from interfering signals are found. Also

the anti-interference analysis method is put forward which provides a support for the switchgear’s power failure diagnosis maintenance.

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