摘要
三相电磁式电流互感器的排列方式对测量误差有明显的影响,由于一次负荷的电流变化范围逐渐增大,三相电流互感器的测量误差就更为显著。针对此问题,本研究首先基于一种改进的铁心材料设计了200 A/5 A的单相电磁式电流互感器,然后对单相电流互感器的误差进行仿真分析,发现新设计的单相电流互感器在宽量程范围内可以满足计量的要求,最后通过仿真计算分析了不同排列对三相宽量程电流互感器测量误差的影响。
The arrangement of the three-phase electromagnetic current transformers has a significant impact on the measurement error.As the current variation range of the primary load gradually increases,the measurement error of the three-phase current transformers is more significant.Aiming at this problem,this paper firstly designs a 200 A/5 A single-phase electromagnetic current transformer based on an improved core material.Then the error of the single-phase current transformer is simulated and analyzed,and it is found that the newly designed single-phase current transformer can meet the measurement requirements in a wide range.Finally,the influence of different arrangements on the measurement error of the three-phase wide-range current transformer is analyzed by simulation calculation.
作者
梁中豪
肖春
杨艳芳
张美玲
LIANG Zhonghao;XIAO Chun;YANG Yanfang;ZHANG Meiling(State Grid Shanxi Marketing Service Center,Taiyuan 030000,China)
出处
《系统仿真技术》
2023年第3期241-246,共6页
System Simulation Technology
基金
国网山西省电力公司科技资助项目(52051L200009)
关键词
三相电流互感器
宽量程
铁心材料
互感器排列
three-phase current transformer
wide range
core material
transformer arrangement
