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UPS Systems

UPS Systems

UPS Systems

(OP)
Can anyone link a basic design guide for UPS systems?

It would be much appreciated.

Thanks.

RE: UPS Systems

(OP)
How is this connected?

My building voltage is 277/480,3ph,4w and they need a panel which is UPS protected.  So I can connect this like a transformer?

I'm not sure how to show this on a one-line.  Just like a transformer?

I assume it would be like a generator with a transfer switch which would switch over to the UPS?

RE: UPS Systems

(OP)
I saw that diagram.

Does the UPS have the isolation transformer integral to it?  Does it also have the circuit breakers integral?

I only need one panel (computer loads) connected to a UPS.  So, would I connect thru the UPS or have a transfer switch.  I am assuming directly thru it.

RE: UPS Systems

[Does the UPS have the isolation transformer integral to it?]

Yes

[Does it also have the circuit breakers integral?]

Yes, everything shown on the diagram is included, you only need to bring in the utility power source and the cables to the load.

[I only need one panel (computer loads) connected to a UPS.  So, would I connect thru the UPS or have a transfer switch.  I am assuming directly thru it.]

Then bring the cable from the panel originally destined to the computer loads to the UPS instead, and the output of the UPS to the loads.

RE: UPS Systems


Try IEEE Std 446, Recommended Practice for Emergency and Standby Power Systems for Industrial and Commercial Applications.
  

RE: UPS Systems

(OP)
Thanks to everyone.

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