Study on the Characteristics of Air Decomposition Components Under PD of Air-gap Insulation Defect

ZHUO Ran; GUAN Wei; CHEN Lincong; QIU Yinjun; ZHANG Xiaoxing; HU Xiongxiong

doi:10.13296/j.1001-1609.hva.2017.02.022

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Study on the Characteristics of Air Decomposition Components Under PD of Air-gap Insulation Defect

更新时间：2025-04-26

- Study on the Characteristics of Air Decomposition Components Under PD of Air-gap Insulation Defect
- High VoltageApparatus Vol. 53, Issue 2, Pages: 139-146+153(2017)
- 作者机构：
  
  1. 南方电网科学研究院
  2. 国网国际发展有限公司
  3. 海南电力技术研究院
  4. 重庆大学输配电装备及系统安全与新技术国家重点实验室
  5. 武汉大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.02.022
  CLC： TM855
- Published：2017
- 稿件说明：
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[1]卓然,关伟,陈林聪,裘吟君,张晓星,胡雄雄.气隙缺陷局部放电下空气分解组分特性研究[J].高压电器,2017,53(02):139-146+153.

ZHUO Ran, GUAN Wei, CHEN Lincong, et al. Study on the Characteristics of Air Decomposition Components Under PD of Air-gap Insulation Defect[J]. High voltageapparatus, 2017, 53(2): 139-146+153.
[1]卓然,关伟,陈林聪,裘吟君,张晓星,胡雄雄.气隙缺陷局部放电下空气分解组分特性研究[J].高压电器,2017,53(02):139-146+153. DOI： 10.13296/j.1001-1609.hva.2017.02.022.

ZHUO Ran, GUAN Wei, CHEN Lincong, et al. Study on the Characteristics of Air Decomposition Components Under PD of Air-gap Insulation Defect[J]. High voltageapparatus, 2017, 53(2): 139-146+153. DOI： 10.13296/j.1001-1609.hva.2017.02.022.

摘要

为探索一种新的开关柜局部放电（PD）检测方法——气体分析法

笔者对不同PD强度下空气分解组分特性进行了相应的模拟实验研究。利用构建的气隙绝缘缺陷模型在研制的PD分解实验平台上对空气进行24 h PD分解实验

并研究了气体分解组分、体积分数、产气速率与放电量的关联特性。实验结果表明

因气隙绝缘缺陷产生的PD导致空气分解为CO、NO、NO2、O3等组分

且各组分的体积分数增长特性有明显差异。CO和NO2气体的体积分数随工频周期内平均放电量QP的增加均呈现"线性—饱和"的增长趋势

NO2先于CO出现饱和且饱和度要低于CO。在较低PD强度下CO的产气速率与QP表现近似线性的关联性。

Abstract

In order to explore a new detection method of partial discharge（PD）for switchgear

gas analysis method

the simulation experiments about the characteristics of air decomposition components under different PD intensities are carried out in this paper. The model of air-gap insulation defect is employed to conduct the decomposition experiments caused by PD with duration of 24 h on the decomposition experimental platform

and the correlation characteristics of the gas composition

concentration

gas production rate with discharge quantity are studied. The experimental results show that the air decomposition components are CO

NO2 and O3under PD caused by the air-gap insulation defect

and the concentration of each component varies from each other. The concentration of CO and NO2 increases with the increase of the average discharge quantity QPduring a power frequency period. The growth trend of "linear-saturation"is presented. And the NO2 appeared to saturate before CO do and its degree of saturation is lower than that of CO. The correlation between the gas production rate of CO and the QPis approximately linear under low PD intensities.

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