基于增强型等离子检测器的油中溶解气体分析仪器研制  

Development of an oil-dissolved gas analysis instrument using an enhanced plasma detector

作　　者：王一波 吴杨 霍耀佳 李秀广 郝金鹏 韩利 丁五行 WANG Yibo;WU Yang;HUO Yaojia;LI Xiuguang;HAO Jinpeng;HAN Li;DING Wuxing(Electric Power Research Institute,State Grid Ningxia Electric Power Co.,Ltd.,Yinchuan Ningxia 750011,China;T&P Union(Beijing)Co.,Ltd.,Beijing 100096,China)

机构地区：[1]国网宁夏电力有限公司电力科学研究院,宁夏银川750011 [2]泰普联合科技开发(北京)有限公司,北京100096

出　　处：《宁夏电力》2024年第5期76-82,共7页Ningxia Electric Power

基　　金：国网宁夏电力有限公司科技项目(5229DK22000D)。

摘　　要：分析变压器油中溶解气体组分和含量是发现并诊断变压器故障的主要手段。对于超/特高压变压器,同等量级的局部放电产生的气体溶解浓度更低,这对变压器油中溶解气体分析仪器提出了更高要求。研究基于增强型等离子检测器的油中溶解气体分析仪器的研制,以氩气作载气,并对其进行性能验证;试验结果表明,基于增强型等离子检测器的油中溶解气体分析仪器的重复性优于3%,最小检测浓度可达10-8量级。与传统气相色谱仪相比,增强型等离子分析仪可以实现超痕量级(10^(-7)~10^(-8)量级)气体组分的检测,有利于及时发现变压器早期潜伏性故障。Analyzing the components and concentrations of oiled-dissolved gas in transformers is the primary approach to detect and diagnose transformer faults.For ultra-high voltage(UHV)and extra-high voltage(EHV)transformers,partial discharges produce lower concentrations of dissolved gases,demanding higher precision from analysis instruments.This study focuses on developing an oil-dissolved gas analysis instrument utilizing an enhanced plasma detector with argon as the carrier gas and also verifies its performance.Results indicate that the instrument achieves repeatability better than 3%,with a minimum detection concentration reaching the 10-8 level.Compared to traditional gas chromatographs,the enhanced plasma analyzer enables ultra-trace level(10^(-7)~10^(-8))detection of gas components,aiding in the timely identification of early latent transformer faults.

关 键 词：增强型等离子检测器 变压器油中溶解气体 分析仪器 检测 

分 类 号：TM41[电气工程—电器]