【摘要】 介绍了一种基于西门子S7-200 PLC的路灯节电控制器。该控制器以S7-200 PLC为控制核心,为使路灯可靠运行,实现了路灯节电控制器的自动工作,并根据电网电压、控制器和负载的运行情况,自动选择工作在轻度、中度、深度节电和旁路四种不同的模式。实践证明该节电装置设计合理、节电效果显著。更多还原

【Abstract】 This paper presents an energy-saving street-lamp controller based on Siemens S7-200 PLC.The energy-saving equip-ment can be operated in four modes of low-grade,mid-grade,deep-grade energy-conservation and off mode.The experimental result shows that the equipment meets the demand and the effect of energy-saving is evident.更多还原