气隙模型局部放电与油中产气量的相关分析  

Correlation Analysis of Air-gap Model Discharge and Gas Generation in Oil

作　　者：郑会军[1] 付乔[1] 

机构地区：[1]攀枝花学院电气工程学院,攀枝花617000

出　　处：《电力系统及其自动化学报》2013年第5期31-34,143,共5页Proceedings of the CSU-EPSA

基　　金：国家自然科学基金项目(61170030)

摘　　要：针对油纸绝缘变压器实际运行故障与油中溶解气体的相互关系,在实验室搭建了模拟变压器局部放电实验平台,研究了气隙放电的发展特征,利用主成分分析方法从29个局放统计算子中提取出6个独立的主成分因子,采用相关分析方法统计得出了变压器油中局部放电产生的6种溶解气体含量与6个局放主成分因子线性相关,为变压器油纸绝缘故障诊断提供了判断依据。The paper designs a simulation experiment system for partial discharge in transformer in laboratory. The re- lationship between the gases dissolved in oil and transformer fault is explored, and air gap discharge and its develop- ment characteristics are studied. Through major-content method, six major factors are selected from the above 29 statistic operators. And the six major factors are independent with each other. Results show that there is a linear rela- tionship between six kinds of gas and six major factors by correlation analysis method. The method provides a practice criterion for diagnosis of transformer oil-paper insulation fault.

关 键 词：变压器 气隙放电 局部放电 主成分因子 相关分析法 

分 类 号：TM411[电气工程—电器]