输电线路放电声发射现象的试验

WANG Chengjiang; DAI Di; YANG Yi

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输电线路放电声发射现象的试验

更新时间：2025-08-13

- 输电线路放电声发射现象的试验
- Automation of Electric Power Systems Vol. 31, Issue 19, Pages: 80-84(2007)
- 作者机构：
  
  1. 三峡大学电气信息学院,湖北省,宜昌市,443002
  2. 万州供电局,重庆市,404000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2007
- 稿件说明：
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WANG Chengjiang, DAI Di, YANG Yi. [J]. Automation of electric power systems, 2007, 31(19): 80-84.
DOI：

WANG Chengjiang, DAI Di, YANG Yi. [J]. Automation of electric power systems, 2007, 31(19): 80-84. DOI：

摘要

试验研究了输电线路放电电脉冲、放电伴随声发射波及二者间的关系，在大量试验的基础上，总结了绝缘子的内部放电、绝缘子表面污秽放电、线路的尖端电晕、接触不良放电以及近区的雷电等不同形式放电伴随声发射波的特征。结果发现，利用放电电信号和声信号之间的相位差，可以实现输电线路放电源的声发射定位，利用不同形式放电声发射波的外形、周期性和对称性的差别，可以有效地识别放电的形式并进行故障诊断。

Abstract

During the discharging process of the power transmission system， the electric impulses， the acoustic emission（AE） waves and the relation between them are studied by experiment in laboratory. Based on a large number of experiments the common characteristics of the AE wave of the interior discharge from the insulator， contaminant discharge from the insulator， corona from the transmission line， discharge from bad contact and thunderbolt are summarized， respectively. It is found that the discharge source can be located by means of the phase-shifting between the electric impulse and the acoustic emission wave of the same discharge. The type of discharge can also be identified through the difference in periodicity， the shape and the symmetry of the AE wave of discharge from the power transmission system.

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