植物与矿物绝缘油热故障产气差异性分析  

Difference analysis of gases produced under thermal faults between vegetable and mineral insulating oils

作　　者：尹惠 韩秋篁 王飞鹏[2] 相晨萌[2] 史常凯 白雪峰 古凌云 YIN Hui;HAN Qiuhuang;WANG Feipeng;XIANG Chenmeng;SHI Changkai;BAI Xuefeng;GU Lingyun(Beijing Key Laboratory of Distribution Transformer Energy-Saving Technology,China Electric Power Research Institute,Beijing 100192,P.R.China;State Key Lab of Power Transmission Equipment&System Security and New Technology,Chongqing University,Chongqing 400044,P.R.China)

机构地区：[1]中国电力科学研究院有限公司配电变压器节能技术北京市重点实验室,北京100192 [2]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,重庆400044

出　　处：《重庆大学学报》2022年第1期79-86,共8页Journal of Chongqing University

基　　金：配电变压器节能技术北京市重点实验室开放基金项目(PDB51201801264)。

摘　　要：为研究不同种类绝缘油在热故障下油中溶解气体差异,对山茶籽绝缘油、FR3绝缘油、25#矿物绝缘油及油纸绝缘体系进行了90~250℃及300~800℃模拟变压器热故障试验,使用色谱法分析了热故障下油中溶解气体,得到相应气体组分、百分含量同热故障温度的对应关系。实验表明,热故障下山茶籽绝缘油的主要溶解气体为H_(2)与C_(2)H_(6),FR3绝缘油为C_(2)H_(6);矿物绝缘油低温(<300℃)热故障下为H_(2)与CH_(4),中、高温(≥300℃)热故障下为CH_(4)与C_(2)H_(4)。植物绝缘油与矿物绝缘油热故障特征气体的差异表明,在变压器故障诊断中应根据绝缘油类型建立适用的油中溶解气体分析方法。To investigate the difference of dissolved gases under thermal faults between vegetable and mineral insulating oils,simulated thermal-fault experiments were conducted for camellia insulating oil,Envirotemp FR3 fluid,25#mineral insulating oil and the paper-oil insulation systems at the temperature of 90-250℃and 300-800℃.The dissolved gases in oils under thermal faults were analyzed using chromatography to obtain the components and percentage contents of the specific gases as well as their relationship with the temperature.The experiment results show that the main dissolved gases under thermal faults of the camellia insulating oil are H_(2) and C_(2)H_(6),and that of the FR3 insulating oil is C_(2)H_(6);for the mineral insulating oil,the main dissolved gases are H_(2) and CH_(4) under thermal faults at lower temperatures(<300℃),while those are CH_(4) and C_(2)H_(4) at medium and higher temperatures(≥300℃).The identification of different types of specific gases under thermal faults between vegetable and mineral insulating oils suggests that suitable methods of DGA(dissolved gas-in-oil analysis)for specific type of insulating oil should be developed in the fault diagnosis of transformers.

关 键 词：植物绝缘油 热故障 溶解气体 油纸绝缘 色谱分析 矿物绝缘油 

分 类 号：TM214[一般工业技术—材料科学与工程]