基于环境因素影响规律分析的电容型设备绝缘状况诊断方法  

Test study of environment influence on dielectric loss factor of capacitive equipment

作　　者：律方成[1] 王永强[1] 李和明[1] 

机构地区：[1]华北电力大学电力系统保护与动态安全监控教育部重点实验室,河北保定071003

出　　处：《华北电力大学学报（自然科学版）》2009年第1期5-9,共5页Journal of North China Electric Power University：Natural Science Edition

基　　金：国家自然科学基金资助项目(50707007)

摘　　要：根据人工气候室内变压器套管介质损耗因数tanδ的在线测量试验结果,建立了主要环境因素对tanδ影响的灰关联分析模型,计算了主要环境因素对tanδ影响的关联度,提出了将环境因素对tanδ影响的关联度作为特征量的电容型设备故障诊断方法。最后通过算例验证了通过灰关联进行电容型设备故障诊断的有效性。Based on the dielectric loss factor （tanδ） test results of transformer bushings in the artificial climate chamber, the grey corelation analysis model of the environment factors effect on the tanδ was established. Then, the grey corelation degree was calculated based on the model, and a new fault diagnosis method based on grey corelation degree was presented. Finally, the effectiveness of grey corelation alalysis method to diagnose the fault of capacitive equipment was validated by calculation result.

关 键 词：介质损耗因数 温度 湿度 污秽 影响 试验 

分 类 号：TM855[电气工程—高电压与绝缘技术]