配电一二次融合之ECT与EVT关键技术应用研究

Research on the Application of Key Technologies of ECT and EVT in the Primary and Secondary Integration of Power Distribution

电子式电流互感器(ECT)与电子式电压互感器(EVT)在配电一二次融合的过程中应用非常广泛。基于现有电子式互感器结构可能出现电磁干扰影响精度的现象,本文在对ECT与EVT进行结构优化设计的基础上,提出一二次成套实验测试方法,并总结了试验接线图、试验步骤及判定标准。实验证明:此方法可准确测得电流与电压数据,具有广泛的应用性。

Electronic current transformer(ECT)and electronic voltage transformer(EVT)are widely applied in the process of primary and secondary integration of power distribution.In view of the phenomenon that electromagnetic interference may affect the accuracy of the existing electronic transformer structure,this article proposes a complete set of experimental test methods on the basis of the structural optimization design of ECT and EVT,and summarizes the test wiring diagram,test procedures and judgement standard.Experiment results show that this method can accurately measure the current and voltage data and applicable in a wide range.