单相表锰铜断火线后电能表电量飞走的分析及改进方法  

Analysis and Improvement Method of Meter Measurement Increasing after Broken Manganese-Copper Wire of Single Phase Meter

作　　者：占伟星 张辉虎 ZHAN Weixing;ZHANG Huihu(Zhejiang BaDa Electronic Instruments Co.,Ltd.,Jinhua 321018,China)

机构地区：[1]浙江八达电子仪表有限公司,浙江金华321018

出　　处：《电工技术》2020年第19期64-65,共2页Electric Engineering

摘　　要：锰铜分流器是安装式单相电能表的电流采样装置,当电流采样回路开路时,电能表会出现电量飞走和脉冲乱发故障。首先从硬件原理上分析了锰铜火线断线前后的电流回路,然后通过模拟计算试验进行原因分析,最后给出了改进方法。Manganese-copper shunt is a current sampling device for single-phase electric energy meter.When the current sampling circuit is open,the electric energy meter will increase and pulse fault will occur.In this paper,the current circuit before and after the manganese-copper wire breaking was analyzed from the hardware principle.Then,the reason was analyzed through the simulation calculation experiment,and finally the improved method was given.

关 键 词：单相电能表 锰铜分流器 电量飞走 电流回路 

分 类 号：TM933.4[电气工程—电力电子与电力传动]