变电站远方备自投装置动作机理及施工要点研究

Research on Mechanism and Construction Points of Substation Remote Automatic Bus Transfer Equipment

远方备自投装置是解决多个变电站串接供电方式下变电站母线失压的有效手段。根据双端远方备自投系统构架下装置的动作逻辑,总结归纳了变电站远方备自投目前最典型的2种工作模式,并就2种模式下远方备自投装置动作逻辑的差异性和现场改造施工的难易性展开对比分析。针对远方备自投装置施工作业现场风险管控问题,结合工程实例详细介绍在老旧备自投基础上改造远方备自投装置不同二次回路的用途及施工要点,为变电站现场人员施工提供一定参考。

Remote automatic bus transfer equipment is an effective means to solve the voltage loss of substation bus under the mode of series power supply for multiple substations.According to the action logic of remote automatic bus transfer equipment under the frame-work of double ended remote standby automatic switching system,the two typical working modes of remote automatic bus transfer e-quipment in substation are summarized.The differences of action logic of remote automatic bus transfer equipment under the two work-ing modes and the difficulty of reconstruction are compared and analyzed.According to the problem of risk management and control on the reconstruction site of remote automatic bus transfer equipment,the uses and construction points of remote automatic bus transfer e-quipment different secondary circuits during the reconstruction of old standby automatic bus transfer equipment are introduced by combinning with the actual project.It provides some reference for on-site personnel construction of substation.