配网自动化计量终端过电压防护措施  

Overvoltage Protection Measures for Distribution Network Automation Metering Terminals

作　　者：常刚 Chang Gang

机构地区：[1]云南电网有限责任公司玉溪供电局,云南玉溪653199

出　　处：《今日自动化》2021年第12期69-70,共2页Automation Today

摘　　要：通过网络自动化计量终端设备的过电压入侵,分析了网络自动化计量终端设备的过电压保护现状,研究了网络自动化计量终端设备的过电压保护对策。文章主要选择在计量终端设备正前方安装更多的过电压安全保护设备,研究和改进计量终端设备的串并联传统合作接线盒,并在传统合作接线盒的基础上改进过电压安全保护。该处理方案可对开关电源线路的安全通道、数据信号安全通道和意见反馈提供过压安全保护,可有效保证计量终端设备电磁能表的正常运行,降低电力工程维护成本,防止用电损坏。Through the overvoltage intrusion of network automation metering terminal equipment,the current situation of overvoltage protection of network automation metering terminal equipment is analyzed,and the overvoltage protection countermeasures of network automation metering terminal equipment are studied.This countermeasure mainly chooses to install more overvoltage safety protection equipment directly in front of the metering terminal equipment.Research and improve the series-parallel traditional cooperative junction box of metering terminal equipment,and improve the overvoltage safety protection on the basis of the traditional cooperative junction box.The processing scheme can provide overvoltage protection for the safety channel of the switching power supply circuit,the data signal safety channel and the feedback,which can effectively ensure the normal operation of the electromagnetic energy meter of the metering terminal equipment,reduce the maintenance cost of the power project,and prevent electricity damage.

关 键 词：计量终端设备 过电压防护 电能计量 

分 类 号：TM933.4[电气工程—电力电子与电力传动]