一起变压器绕组变形测试数据异常实例分析  

Aabnormal testing data analysis of transformer winding deformation

作　　者：李凯[1] 姚宁 赵蒙 

机构地区：[1]华北电力大学电气与电子工程学院,北京102206 [2]运城供电公司,山西运城044000

出　　处：《实验室科学》2015年第2期14-16,19,共4页Laboratory Science

摘　　要：结合变压器绕组变形测试原理,分析某110kV变电站1号变压器绕组变形测试曲线异常的原因,判断这种变化能否影响变压器的运行。经过综合分析认为该变压器可以通过采取缩短色谱分析周期、红外测温等方法进行监视运行。但在条件允许的情况下尽快进行一次诊断性复试,主要诊断试验项目为绕组变形与低压直流电阻测试。同时考虑到其为带家族缺陷的设备,也应加强带电测试监督工作。Combined with the test principle of transformer winding deformation, this paper analysis the reasons of abnormal curve of No1. transformer winding deformatiaon in one 1 lOkV substation , judging this change can affect the operation of transformer. After comprehensive analysis, this paper considers that the transformer can operation through shorten the cycle bychromatographic analysis and infrared temperature measurement method. But for a diagnostic test is necessary in the conditions allow, including the deformation test and low DC resistance of winding. Considering the defects of equipment runs in families, so strengthen the supervision and prevention of live testing work is important.

关 键 词：变压器 绕组变形 频率响应分析法 

分 类 号：TM403.2[电气工程—电器]