特高压变压器油中溶解气体在线监测技术概述  

Overview of on-line Monitoring Technology for Dissolved Gas in UHV Transformer Oil

作　　者：赵振喜 陈诚[2] 王敬一[2] 王朝辉 郭玉福 崔文东 ZHAO Zhen-xi;CHEN Cheng;WANG Jing-yi;WANG Zhao-hui;GUO Yu-fu;CUI Wen-dong(State Grid Jilin Electric Power Company Limited,Changchun 130028,China;Wuhan Nanrui Limited Liability Company of State Grid Electric Power Research Institute,Wuhan 430000,China;Construction Branch Company of State Grid Jilin Electric Power Supply Company Limited,Changchun 130012,China)

机构地区：[1]国网吉林省电力有限公司,吉林长春130028 [2]国网电力科学研究院武汉南瑞有限责任公司,湖北武汉430000 [3]国网吉林省电力有限公司建设分公司,吉林长春130012

出　　处：《电气开关》2022年第4期1-5,共5页Electric Switchgear

基　　金：大型电力变压器局部放电检测手段的提升(B72371220001)。

摘　　要：本文首先概述了变压器油中溶解气体检测的技术原理和在线监测装置的必要性,而后梳理了应用于国网特高压的几种主流的油气分离、气体组分分离以及气体检测技术。油气分离技术主要有真空脱气法、动态顶空脱气法以及膜分离法,组分分离技术主要采用毛细管色谱柱和填充柱,气体检测技术主要采用半导体气敏传感器、热导检测器以及光声光谱检测器。最后具体对比分析了这些技术的优缺点,为变压器油中溶解气体在线监测装置的选型选配提供一定的参考,同时为油中溶解气体在线监测技术的研究方向提供一定的思路。This paper first summarizes the theory of dissolved gas detection in transformer oil and the necessity of on-line monitoring device,and then sorts out several mainstream oil and gas separation technology,gas component separation technology and gas detection technology applied in UHV of the state grid.Oil and gas separation technology mainly include vacuum degassing,dynamic headspace degassing and membrane separation.The separation technology mainly uses capillary column and packed column.Gas detection technology mainly uses semiconductor gas sensor,thermal conductivity detector and photoacoustic detector.Finally,the advantages and disadvantages of these technologies are compared and analyzed in detail,which provides some references for the selection of on-line monitoring device of dissolved gas in transformer oil and some ideas for the research direction of on-line monitoring technology of dissolved gas in oil.

关 键 词：油中溶解气体 在线监测 油气分离技术 气体组分分离技术 气体检测技术 

分 类 号：TM93[电气工程—电力电子与电力传动]