油色谱在线监测装置常见故障分析  

Analysis of Common Faults of Oil Chromatographic On-line Monitoring Device

作　　者：张正东 宋博 甘强 ZHANG Zhengdong;SONG Bo;GAN Qiang(EHV Voltage Branch,State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 211100,China)

机构地区：[1]国网江苏省电力有限公司超高压分公司,江苏南京211100

出　　处：《电工技术》2022年第23期188-190,共3页Electric Engineering

摘　　要：油色谱在线监测装置通过对变压器油中溶解气体的实时检测,实现对变压器早期潜伏性故障的准确评估,其效果已在电网系统内得到充分肯定。但是在应用过程中,在线监测装置本身故障情况也越发频繁。首先简述了目前市面上主流的油色谱在线监测装置测试原理,分析常见的故障类型,并结合几起油色谱在线监测装置现场缺陷案例,阐述装置目前存在的一些问题。最后从保障变压器稳定运行的角度对在线监测装置提出运行维护建议。The on-line oil chromatographic monitoring device can accurately evaluate the early latent faults of transformers through real-time detection of dissolved gases in transformer oil,and its beneficial effect has been fully recognized in the power grid system.However,in the process of application,the failure of the online monitoring device itself is becoming more and more frequent.First of all,the test principle of the mainstream oil chromatography online monitoring device on the market is briefly introduced,and the common types of faults are analyzed.Then,combined with several cases of on-site defects in the oil chromatography online monitoring device,some of the current problems of the device are explained.Finally,from the perspective of ensuring the stable operation of the transformer,the operation and maintenance suggestions of the online monitoring device are proposed.

关 键 词：变压器 在线监测 油中溶解气体 轻瓦斯告警 

分 类 号：TM855[电气工程—高电压与绝缘技术]