描述
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，但其机构及制造工艺因素使其隔离性并不理想。实际上，由于分布参数特别是分布电容的存在，绝对隔离是不可能的。
MITSUBISHI HEAVY INDUSTRIES, LTD PT-50 PTI-50-T6 E-1852
Vexta Stepping Motor PH268-21B. 2 Phase, DC 5.4V, 1.5A
Hi-Tech Evolution Xtreme 180. TCT 7″ Metal Cutting Saw
Laser Lens, Servo, Linear Bearing Mount. Machine Vision
Topsearch TS-M-8V01C. PCI On Board Computer Automation
KAMUI Company, HEAT EXCHANGER. TYPE: SHA-2020P1
NTI Rackmux-KT Rackmount Keyboard Mouse Drawer. RK-2D
Vintage Leather WWII Nazi Officer Map Case “Luftwaffe”
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Vintage Trunk Chest with Compartment. Terrific Shape!
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BOSCH 1209 Straight Die Grinder. 16,000 RPM, 8.4 Amps
CHINO Controler JS-2020A Power Supply, 200V 20A
