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    Boertjie's Avatar
    Boertjie Posts: 2, Reputation: 1
    New Member
    		  
    #1

    May 28, 2008, 04:39 AM
    Sizing of UPS
    Hi,

    If I have 300 computors each with a load of 400watts and I want to make provision for UPS back-up, what size UPS do I cater for? I have 3 phase 400VAC available.:rolleyes:
    smokedetector's Avatar
    smokedetector Posts: 368, Reputation: 56
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    #2

    Jul 1, 2008, 08:12 PM
    Best bet is to call the manufacturer and work with them. They'd be more qualified to help.

    A big part of my job is calling people all day finding prices and tracking materials down. You can find out a lot about how something works if you call their tech department.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
    Uber Member
    		  
    #3

    Jul 1, 2008, 09:18 PM
    Sorry, a UPS is not the way to go. Use a backup generator and a _________ system. Fill in the blank. This seems too much like a homework problem.

    Besides watts is the wrong term to use. You should use VA.
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