用PLC控制的点火油泵变频调速系统
GUANGXI ELECTRIC POWER TECHNOLOGY（1999）
Abstract
为解决火电厂点火油泵系统采用工频定速运行方式存在能耗高和易产生故障的问题,用PLC对系统进行变频调速,采用变频调速加定速运行的运行方式.该方式运行灵活,硬件投资少,可节约能耗77%.
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