3HAC026103-001
3HAC026103-001
3HAC026103-001
3HAC026103-001
为把这一重要的交通工程建成代表首都形象的示范工程,城铁总公司设计了大型电力监控及车站环境控制系统,和利时公司凭借在监控系统、变电站系统、PLC 系统上的综合实力,一举拿下这一国内自动化公司在地铁/轻轨项目上的最大合同。其中和利时公司PLC产品 承担16 个车站的环控和全部变电站内380V 部分的监控及负荷控制管理,使用量超过3000 个模块,这也是和利时公司PLC产品 推出以来获得的最大订单,充分体现了用户对和利时公司国产PLC 系统的信任。
城铁监控系统是一个分层分布式的网络化监控系统,和利时公司PLC产品 在车站内通过以太网和现场总线
(Profibus-DP)把诸如给排水系统、暖通空调系统、电梯/扶梯系统、照明系统等子系统连接成一个有机整体,某些单元装置采用局部就地控制,而象灯光照明则采用集中控制,所有设备的运行信息都会聚在车站以太网上传输到车站综控室。车站综控室内设有操作计算机,不仅可以监控、记录、打印本站内设备工作情况,通过密码直接操控设备运转,而且还可以向设在西直门的城铁调度中心汇总数据,使调度中心可以监控全线的运行。
除监控系统之外,车站内还包括很多子设备,如风机、电梯、锅炉等,这些子设备大多采用PLC 控制。由于和利时公司PLC产品 系统的通讯能力很强,为使用户统一备品备件,便于将来维护,许多子设备供应商都用和利时公司PLC产品替代原来其它品牌的PLC 进行控制,以Profibus-DP 通讯协议接入环控系统。这样既省去了传统以干接点方式接入所需的大量电缆,又可以为环控系统提供传统方式提供不了的运行信息,如转速、轴温等。
和利时公司PLC产品 还承担了车站380V 低压部分的控制,包括备自投、负荷联切和开关控制。在每个车站内分布安装了5 个PLC 控制柜,尽量靠近所控制的设备,每套PLC 都带Profibus-DP 从站接口,通过敷设在上下站台之间的通讯电缆与中控室内电力监控通讯控制器相连。5 套PLC 各自承担不同的功能,在出现意外情况时,彼此之间可以通过Profibus-DP 总线传递动作指令。如当供电母线故障而导致备自投动作时,安装在380V 开关柜上的PLC 会及时通知站厅配电室内的PLC 切除所有三级负荷。
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NEW Omron 24VDC Switching Power Supplies S8E1-05024D
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Schneider/Telemecanique Power Supply ABL1RPM24100 NIB !
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Artesyn NFS40 Switching Power Supply
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ACOPIAN D15-10A MINIATURE POWER MODULE PC BOARD EL-10
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