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Subject:
W and VA on a UPS, what is the difference?
From:
Herbert Graf <[log in to unmask]>
Reply To:
PCBUILD - Personal Computer Hardware discussion List <[log in to unmask]>
Date:
Sat, 10 Apr 1999 19:58:30 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (9 lines) 
        I have a question about W and VA. I just purchased a UPS (Uninterruptible
Power Supply) that has a rating of 400VA and 250W, my question is why are
they not the same? I always thought that in most circumstances P = V x I,
and doesn't VA just mean V x I, the same thing? I have a feeling that I am
missing something huge here. Thanks for any info.

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