3HAC025917-001 ABB

ABB ACS850-04-094A-5
ABB 2TLA020052R1000
ABB TZIDC V18345-1020121001
ABB M2AA090L2 05M09L02AS17901
ABB PFEA 112-20 3BSE030369R20

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Description

PLC系统的正常供电电源均由电网供电。由于电网覆盖范围广,它将受到所有空间电磁干扰而在线路上感应电压和电路。尤其是电网内部的变化,入开关操作浪涌、大型电力设备起停、交直流传动装置引起的谐波、电网短路暂态冲击等,都通过输电线路传到电源原边。PLC电源通常采用隔离电源

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