智能电能表现场编程须满足主回路电压达到78%以上,因此在主回路无电压时,无法实现电能表的现场编程或拆旧表计时读取表底度.对此,部分技术人员会在现场其余回路搭接电压,启动电能表完成编程,此种情况下极易造成人身或设备的安全事故.为此,研制一款便携式复电装置能够输出 50、100、220 V 3个档位的交流电压,具备过流、过压安全保护功能,提升现场作业安全和工作效率.
Abstract
The on-site programming of smart energy meters needs to meet the requirement that the main circuit voltage reaches 78%or above.Therefore,when there is no voltage in the main circuit,it is impossible to achieve on-site programming of the energy meter or start dismantling old meters to read the meter's bottom reading.In this regard,some technical personnel will connect the voltage to other circuits on site,start the energy meter to complete programming,which can easily cause personal or equipment safety accidents.To this end,a portable power recovery device has been developed that can output AC power between 50、100、220 V,with overcurrent and overvoltage safety protection functions,improving on-site operation safety and work efficiency.
关键词
智能电能表/复电/逆变/直流
Key words
smart meter/telegram in reply/inversion/direct-current
维普
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