FRA法检测电力变压器绕组变形的试验研究  

Experimental Study on FRA-based Detection of Transformer Winding Deformation

作　　者：张海军 王曙鸿[2] 刘艳琴 

机构地区：[1]湖北文理学院物电学院纯电动汽车动力系统设计与测试湖北省重点实验室,湖北襄阳441053 [2]西安交通大学电气学院,西安710049 [3]国网四川省成都电力公司,成都610023

出　　处：《高压电器》2017年第12期157-162,共6页High Voltage Apparatus

基　　金：国家自然科学基金资助项目(51577140)~~

摘　　要：通过试验研究了频率响应分析法检测变压器绕组变形。首先分析了频率响应分析法检测变压器绕组变形的基本原理。建立了频率响应分析法试验平台,分析了影响频率响应分析法检测绕组变形结果的主要因素。结合相关系数法对两个典型算例变压器绕组进行了变形诊断分析。通过对变压器的频率响应测试数据比较分析,结果表明了用频率响应分析法判断变压器绕组变形仍存在一定的局限性。The basic principle of the frequency response analysis method for detecting transformer winding deformation was analyzed. The test platform for analyzing frequency response was established, and the main influenceson application of the frequency response analysis to detection of winding deformation were investigated. The correlation coefficient method was employedin two typical diagnosisexamples of transformer winding deformation. Comparison between thefrequency responses of transformer from both the frequency response analysis and the test indicatesthat the frequency response analysis has certain limitationin judging transformer winding deformation.

关 键 词：电力变压器 绕组变形检测 频率响应分析法 相关系数法 

分 类 号：TM41[电气工程—电器]