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.
作者
叶加星
李金俊
徐浩然
刘磊
秦露
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)
出处
《仪表技术》
2020年第5期29-31,共3页
Instrumentation Technology
关键词
变压器
接地电流
在线监测
溯源方法
transformer
grounding current
online monitoring
traceability method
