750 kV CVT现场检验误差影响因素分析  

Analysis of 750 kV CVT on-site testing error factors

作　　者：杨春光[1] 张长青[1] 高敬更[1] 乔立凤[1] 

机构地区：[1]甘肃省电力公司电力科学研究院,兰州730050

出　　处：《电子测量技术》2013年第9期23-26,共4页Electronic Measurement Technology

摘　　要：为了提高采用比较法进行750kV CVT现场误差检验的准确性,通过大量的出厂试验与现场检验数据的对比,对检测数据进行统计分析,首次全面系统地分析了750kV CVT现场检验的误差影响因素,归纳出750kV CVT现场检验误差的主要影响因素,计算出了各主要影响因素对750kV CVT比值差和相位差的影响量,总结出750kV CVT在不同的影响因素下,其比值差和相位差的变化趋势,对现场检验测试和生产厂家出厂试验提出相应的建议和修正值,从而给同类检验工作提供了现场测试方法和经验数据。To improve the accuracy of the 750 kV CVT on-site error testing which used comparison method,according to the comparing of a large number of factory testing data and on-site testing data, based on the statistical analysis of testing data,the error factors of 750 kV CVT on-site testing are first enumerated comprehensively and systematically. The main error factors of 750 kV CVT on-site testing are summarized and the influence of the main factors on the ratio error and phase error of the 750 kV CVT are calculated. The variation trend of the ratio error and phase error with difference factors acting on testing of 750 kV CVT is summarized. That can give recommendations and amendments for the factory testing and on-site testing, and it also provides method of on-site testing and experience data for similar testing work.

关 键 词：750 kV电容式电压互感器 误差 现场检验 

分 类 号：TM930[电气工程—电力电子与电力传动]