一款双回路防窃电单相电能表的设计  

A Double-Loop Anti-Theft Single-Phase Watt-Hour Meter Design

作　　者：曾宪莉 龙波 ZENG Xianli;LONG Bo(Hunan University of Information Technology,Changsha 410151,China;Hunan Huaye Intelligent Communication Technology Co.,Ltd.,Changsha 410021,China)

机构地区：[1]湖南信息学院,湖南长沙410151 [2]湖南华烨智能通信技术股份有限公司,湖南长沙410021

出　　处：《通信电源技术》2023年第7期28-30,共3页Telecom Power Technology

摘　　要：研究设计的双回路防窃电单相电能表除了能实现正常的计量功能外,对失压窃电的掉零线窃电方式能有效检测。在零线电流超过1 A时,能启动电能表正常计量。主要完成了单相电能表的基本电路设计,包括电压采样、电流采样、强磁检测、近红外通信以及RS485通信等,并对部分电路波形进行了测量验证。The double-loop anti-theft single-phase watt-hour meter designed in this paper can not only realize the normal metering function,but also effectively detect the zero-line stealing mode of power loss.When the neutral current exceeds 1 A,the normal measurement of the electric energy meter can be started.The basic circuit design of single-phase watt-hour meter is mainly completed,including voltage sampling,current sampling,strong magnetic detection,near infrared communication and RS485 communication,and some circuit waveforms are measured and verified.

关 键 词：单相电能表 防窃电 双回路 

分 类 号：TM933.4[电气工程—电力电子与电力传动]