二次回路长度对电流互感器误差影响的实验  

Experimental Study on Influence of Error of the Current Transformer by the Length of Secondary Loop

作　　者：杨敏[1] 胡娟 林德锋 张鹏[1] YANG Min;HU Juan;LIN Defeng;ZHANG Peng(State Grid Sichuan Electric Power Corporation Metering Center, Chengdu 610049, China;State Grid Sichuan Electric Power Overhaul Company, Chengdu 610049, China)

机构地区：[1]国网四川省电力公司计量中心,成都610049 [2]国网四川省电力公司检修公司,成都610049

出　　处：《云南电力技术》2017年第6期69-71,76,共4页Yunnan Electric Power

摘　　要：根据电流互感器的工作原理,先分析了电流互感器误差产生的原因和二次负荷对误差的影响,然后在实验室中使用不同长度的二次导线模拟电流互感器实际运行和现场检测情况,按照检定规程规定的比较法测量了电流互感器的误差,通过对实验数据的分析比较,明确了二次回路长度对电流互感器实际误差和检测结果的影响,对电流互感器的选型以及误差准确检测提出了技术建议。According to the theory of current transformer, this paper analyzes how the error of current transformer occurs and the effect of the secondary load on the error. In laboratory, it uses different lengths of secondary wires to simulate the situation of actual operation and field test. Then it measures the error of current transformer with the comparison method by verification regulation. By analyzing the data, this paper concludes the effect of the length of secondary loop on the actual error and testing result. It gives technical recommendations on model selection for current transformer and accurate test on the error.

关 键 词：电流互感器 二次回路长度 误差 实验 

分 类 号：TM452[电气工程—电器]