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简要论述了可编程控制器PLC在变电站继电保护及自动重合闸中的作用并介绍了内置PLC继电保护装置的结构特点,结合工程实例详细说明了用PLC软件实现馈电线路自动重合闸控制的设计方案和编程方法。
The function of programmable logic controller PLC in substation relay protection and auto-reclosure is briefly discussed. The structural characteristics of the built-in PLC relay protection device are introduced. Combined with the engineering examples, the PLC auto-reclosing control Design and programming methods.