变压器铁芯接地电流检测装置应用研究  

Research of Transformer Core Grounding Current Detection Device

作　　者：邬小波[1] 彭珣 郭绍伟[3] 邬彦威[3] 钱欣 

机构地区：[1]华北电力大学,北京102206 [2]中国石油物资公司,北京100029 [3]华北电力科学研究院有限责任公司,北京100045 [4]秦皇岛电力公司,河北秦皇岛066000

出　　处：《华北电力技术》2013年第8期38-42,共5页North China Electric Power

摘　　要：本文采用补偿干扰电流的方法,对用于变压器铁芯接地电流检测的钳形电流表进行了改造,从根本上解决了空间电磁环境对铁芯接地电流检测结果准确性的影响。同时,将普通钳形电流表与改造后的检测装置进行了大量的现场应用比对,并对典型的试验结果进行分析判断,应用结果表明,改造后的检测装置极大的排除了变压器铁芯接地电流检测过程中的干扰因素,非常适用于该项试验,具有推广价值。In this paper,a method of compensation interference current was used for the transformation of clamp meter for transformer core grounding current.The influence of space electromagnetic environment was fundamentally solved to the core grounding current detection accuracy of the results.Meanwhile,a large number of field applications and typical test results were analysed between ordinary clamp meter and the detection device after transformation,the application results show that,the detection device after transformation excluded transformer core grounding confounding factors in the current testing process and was very suitable for the test of transformer core grounding current with a promotional value.

关 键 词：变压器 接地电流 现场应用 

分 类 号：TM862[电气工程—高电压与绝缘技术]