一起220 kV主变油色谱异常及试验诊断消缺的典型案例分析  

A Typical Case Analysis of 220 kV Main Transformer Oil Chromatogram Abnormality and Elimination of Defects in Test Diagnosis

作　　者：周哲[1] 安飞[1] 徐舟 张鹏 ZHOU Zhe;AN Fei;XU Zhou;ZHANG Peng(State Grid Huainan Power Supply Company,Huainan 232007,China)

机构地区：[1]国网淮南供电公司,安徽淮南232007

出　　处：《电工技术》2022年第9期114-116,共3页Electric Engineering

摘　　要：主变在运行中受各种过电压、不良工况及设备内部绝缘老化的影响,会导致内部潜伏性的缺陷逐渐加剧,以致性能逐渐下降,给电网的安全运行带来隐患,而变压器内部缺陷情况可通过主变油色谱分析进行掌握。介绍主变油色谱分析发现主变内部潜伏性的缺陷,通过电气试验进行故障诊断和电容器冲击装置消缺的典型案例。The main transformer is affected by various over voltages,bad working conditions,and the aging of the internal insulation of the equipment during operation,which will cause the internal latent defects to gradually increase,resulting in a gradual decline in performance,and brings hidden dangers to the safe operation of the power grid.The internal defects of the transformer can be grasped by chromatographic analysis of the main transformer oil.The main transformer oil chromatogram analysis is introduced and the latent defects in the main transformer is found.The typical cases of fault diagnosis and defect elimination of capacitor impact device through electrical test are discussed.

关 键 词：主变油色谱 电气试验 内部潜伏性缺陷 故障诊断 

分 类 号：TM407[电气工程—电器]