Wiring of the DCS power cabinet?
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The DCS system in the control room requires a power supply; generally, the power cabinets located in the cabinet room are supplied with 380V cables or 220V cables, drawn from the power distribution room?
Generally, is the 380V power supply line running from one distribution room to another a single circuit or two circuits? Is this clear?
Route 2: Generally, DCS systems are powered from the electrical UPS cabinet
I plan to place the UPS in the cabinet room. Do I need to run a cable from the power distribution room to the UPS, and another cable from the mains supply to the DCS power cabinet? All are 380V
The power supply for instruments is usually 220VAC; therefore, we refer to the instrument system as a low-voltage system. This 220VAC comes from two sources: one is the output of the UPS, and the other is the mains electricity.
Just connect it directly from the distribution room
For 220V, it’s possible to use two UPS units directly, with one connected to the mains power supply
Two UPS units are better, as they are less likely to cause problems
Two UPS units? Can a UPS unit connected to 380V mains electricity output 220V AC?