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UPS Q's - KV vs W

  • 13-01-2009 12:11pm
    #1
    sparkite
    Closed Accounts Posts: 201 ✭✭


    Hi there,

    We have had some power issues here in the past so we are going to get a UPS to protect a few items such as the server etc.

    Perhaps I am reading into things a little too much but I cant quite get my head around the difference between KV and W. I have read that it is due to the PF which typically is about 0.6.

    I am looking at
    this but the run time is quite short

    or this which is not as powerful but has a much longer runtime

    To try relate this to my problem. I am trying to do the calculations to decide on a UPS.
    So far I have assumed that VA and W are the same and I have read the labels and multiplied V by A for every device apart from server which uses a 420W PSU. The total I get is about 900.

    Perhaps someone can clear this up a little for me.


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