电子式电压互感器二次信号准确度研究  

Research on Accuracy of Secondary Signal of Electronic Voltage Transformer

作　　者：郅娇娇 师进强 ZHI Jiaojiao;SHI Jinqiang(XJ Electric Co.,Ltd.,Xuchang 461000,China)

机构地区：[1]许继电气股份有限公司,河南许昌461000

出　　处：《电器与能效管理技术》2024年第7期69-73,78,共6页Electrical & Energy Management Technology

摘　　要：电子式电压互感器在配电设备智能化中具有重要作用,其二次信号准确度是实现配电设备智能化的关键。首先以10 kV电阻型电子式电压互感器为例,构建仿真模型,开展线缆长度对电子式电压互感器二次信号准确度影响的仿真分析;然后搭建电子式电压互感器准确度测试环境,完成不同长度线缆下的准确度测试。最后,对仿真试验和测试数据进行分析,得到线缆长度对二次信号准确度的影响规律。研究结果对合理选取线缆长度、提高二次信号准确度具有一定实践意义。Electronic voltage transformer plays an important role in intelligent distribution equipment,and the accuracy of the secondary signal of the electronic voltage transformer is the key to intelligent distribution equipment.The 10 kV resistance type electronic voltage transformer as the example,the simulation model is built.The simulation analysis on the influence of cable length on secondary signal accuracy of electronic voltage transformer is carried out.Then the electronic voltage transformer accuracy test environment is set up and the accuracy test under different lengths cable is completed.Through the simulation and test data analysis,the influence of cable length on the accuracy of secondary signal is obtained.The research results have practical significance for the reasonable selection of cable length and the improvement of accuracy.

关 键 词：电子式电压互感器 二次信号 线缆长度 准确度 

分 类 号：TM451[电气工程—电器]