Power supply issues for high-power electric control valves?
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I am working on a project where large electric control butterfly valves are being used extensively; they consume a lot of electricity, with a total power consumption of around 10 KW. Is it possible to power them along with the DCS using the same UPS? It is still powered by other sources, such as EPS; some people have applications related to this. Thank you.
Previously, our factory had its own power supply, with control handled from two separate locations.
It is best to be powered separately, or together with non-critical loads.
For the 380V AC electric valves, the power supply is handled by the electrical department; the power comes from the electrical distribution room. The control signals are sent out by the instrument DCS or SIS. For the smaller 220V AC electric valves, power supply can be provided from the instrumentation side. Of course, this also depends on the capacity of your UPS, or it’s possible to use mains power depending on the level of importance.
It is recommended that such electric valves be powered separately by electricity