Effects of Operating Condition on FTIR of Composite Insulator

MO Xiaoxiang; DONG Pingping; GAO Lijuan

doi:10.13296/j.1001-1609.hva.2018.03.012

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Effects of Operating Condition on FTIR of Composite Insulator

更新时间：2025-04-26

- Effects of Operating Condition on FTIR of Composite Insulator
- High VoltageApparatus Vol. 54, Issue 3, Pages: 86-92(2018)
- 作者机构：
  
  1. 广西电网有限责任公司河池供电局
  2. 国网江苏省电力有限公司宿迁供电分公司
  3. 国网河北省电力有限公司衡水供电分公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2018.03.012
  CLC： TM216
- Published：2018
- 稿件说明：
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[1]莫小向,董平平,高丽娟.运行条件对复合绝缘子红外光谱的影响研究[J].高压电器,2018,54(03):86-92.

MO Xiaoxiang, DONG Pingping, GAO Lijuan. Effects of Operating Condition on FTIR of Composite Insulator[J]. High voltageapparatus, 2018, 54(3): 86-92.
[1]莫小向,董平平,高丽娟.运行条件对复合绝缘子红外光谱的影响研究[J].高压电器,2018,54(03):86-92. DOI： 10.13296/j.1001-1609.hva.2018.03.012.

MO Xiaoxiang, DONG Pingping, GAO Lijuan. Effects of Operating Condition on FTIR of Composite Insulator[J]. High voltageapparatus, 2018, 54(3): 86-92. DOI： 10.13296/j.1001-1609.hva.2018.03.012.

摘要

长期挂网运行的复合绝缘子往往不可避免地发生老化

造成绝缘子绝缘性能的下降。为研究复合绝缘子在不同运行条件下的老化状态

文中采用傅里叶变换红外光谱（Fourier transform infrared spectroscopy

FTIR）分析运行于不同环境、不同电压等级具有不同运行年限的多支复合绝缘子

并对复合绝缘子伞裙典型官能团的变化情况进行研究。研究结果表明:重污区绝缘子表面积污程度相对较重

造成复合绝缘子伞裙表面Si-O-Si链和Si-CH

链含量相对较低

其老化程度更严重。同时

通过数理统计的方法研究运行于不同电压等级的绝缘子Si-CH

与Si-O-Si的对应吸收峰面积

结果表明

不同电压等级的复合绝缘子红外光谱吸收峰面积具有分散性

220kV绝缘子红外光谱基团的吸收峰面积明显小110kV的绝缘子

但整体上峰面积呈现随运行年限增大而变小的趋势。

Abstract

To investigate aging state of composite insulators under different operating conditions

Fourier transform infrared spectroscopy is employed to analyze the composite insulators with different service time and working in different environment and voltage grade. And the change of the typical functional groups of composite insulator’s umbrella skirtis also analyzed. The results show that in heavy pollution area the pollution degree of insulator surface is relatively high

leading to lower contents of Si-O-Si and Si-CH

chains on umbrella skirt surface of the composite insulator andhigher aging degree. Furthermore

thematical statistics is adopted to obtain the absorption peak areas of Si-CH

andSi-O-Si chains on the insulators corresponding to different voltage grade. It is shown that the absorption peak areas forthe composite insulators working at different voltage grade are dispersive

and the absorption peak areas for the 220kV insulator is obviously smaller than that for the 110kV insulator. In general

the absorption peak areas get smaller with increasing service time of the composite insulator.

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