光声光谱技术在SF6分解产物中的应用研究

J4 ›› 2015, Vol. 32 ›› Issue (5): 525-530.

光声光谱技术在SF6分解产物中的应用研究

刘添天,苏镇西

国网安徽省电力科学研究院，安徽合肥 230022

收稿日期:2014-10-21 修回日期:2015-03-10 出版日期:2015-09-28 发布日期:2015-09-28
通讯作者: 刘添天（1980—）安徽合肥人，高级工程师，主要从事电力系统电网化学分析研究。 E-mail:13349294416@126.com

Application of Photoacoustic Spectroscopy Technology in Detection of SF6 Decomposition

LIU Tiantiian, SU Zhenxi

Received:2014-10-21 Revised:2015-03-10 Published:2015-09-28 Online:2015-09-28

摘要/Abstract

摘要：

介绍了光声光谱技术的基本原理，采用英国凯尔曼(Kelman)有限公司研发的便携式变压器油中故障气体及微水检测装置Transport-X对SF6分解产物中的CO和SO2进行了检测，由于Kelman公司的检测装置是检测油中故障气体的，装置中没有SO2滤光片，因此根据HITRAN2004数据库重新选取了SO2气体的滤光片，并用新选择的SO2滤光片替换原来Kelman检测装置中的一个滤光片，来实现对SO2气体的检测。对不同浓度的CO和SO2气体进行了标定，结果表明光声信号与待测气体浓度之间具有良好的线性关系，CO和SO2气体的最低检测限分别达到了4.063ppm和9.540ppm。

关键词: 光谱学, SF6分解产物, 光声信号, GIS

Abstract:

The basic principles of photoacoustic spectroscopy were introduced. A portable photoacoustic spectroscopy system Transport-X, which could detect a series of DGA products developed by Kelman Company of Limited Liability, was applied to detect CO and SO2 of SF6 decomposition. The filter of SO2 was selected according to the HITRAN2004 database as a result of the incapable of detecting SO2 of Transport-X. One of the filters of Kelman was replaced by the new selected SO2 filter. Calibration experiments of different concentrations of CO and SO2 were carried out and the results showed that photoacoustic signal and the concentration have a perfect linear relationship and the detection limit for CO and SO2 are 4.063ppm and 9.540ppm.

Key words: spectroscopy, SF6 decomposition, photoacoustic signal, GIS

刘添天苏镇西. 光声光谱技术在SF6分解产物中的应用研究[J]. J4, 2015, 32(5): 525-530.

LIU Tiantiian, SU Zhenxi. Application of Photoacoustic Spectroscopy Technology in Detection of SF6 Decomposition[J]. J4, 2015, 32(5): 525-530.

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