This paper proposes that DGUS screen appIies to the three-phase smart meters,and gives the hardware con-nection circuit and some software programs.The good operating resuIts show that the DGUS screen can meet the dispIay requirements of smart three-phase meters to show the basic power parameters,reaI-time current and voItage waveforms and sub-harmonic contents.%工业生产、生活离不开三相电表,显示模块对于仪表尤为重要。DGUS屏数据处理和图形处理功能强大,有自定协议,可以灵活地设计和修改显示界面,已在工业控制系统中有广泛应用。提出了将DGUS屏应用于三相智能电表的方案,并给出了硬件连接电路和部分软件程序实现,实际运行效果很好,满足了三相智能电表对基本电力参数、实时电流电压波形以及分次谐波含量等的显示显示需求。
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