新型变压器铁心接地电流监测装置测试方法的研究  

Research on Test Method of Device of Monitoring Grounding Current of the New Transformer

作　　者：叶加星[1] 李金俊 徐浩然 刘磊[1] 秦露[1] YE Jiaxing;LI Jinjun;XU Haoran;LIU Lei;QIN Lu(Jiangsu Frontier Electric Technology Co.,Ltd.,Nanjing 211102,China;Jiangsu Electric Power Company Marketing Service Center,Nanjing 210000,China)

机构地区：[1]江苏方天电力技术有限公司,江苏南京211102 [2]国网江苏省电力有限公司营销服务中心,江苏南京210000

出　　处：《仪表技术》2020年第5期29-31,共3页Instrumentation Technology

摘　　要：介绍了一种变压器铁心接地电流在线监测装置溯源方法。将变压器铁心接地电流测试仪注入与铁心接地电流幅值相等、各项谐波分量相同、相位相差180°的电流,抵消后再注入标准信号(电流)进行校准。通过仿真软件以及现场试验,证明了该方法的可行性。This paper introduces a traceability method for online monitoring device of transformer core grounding current.The transformer core grounding current tester is injected with the current with the same amplitude,harmonic components and phase difference of 180 degrees,and then the standard signal(current)is injected to calibrate the de-vice.The feasibility of the method is proved by simulation software and field test.

关 键 词：变压器 接地电流 在线监测 溯源方法 

分 类 号：TM933.1[电气工程—电力电子与电力传动]