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Date:      Tue, 15 Oct 2013 20:16:44 +0800
From:      Erich Dollansky <erich@alogt.com>
To:        Ralf Mardorf <ralf.mardorf@alice-dsl.net>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: UPS buying suggestion
Message-ID:  <20131015201644.228f1ae2@X220.ovitrap.com>
In-Reply-To: <1381837542.757.45.camel@archlinux>
References:  <CACo--msUpY-6r7MkuEvrPDpSVdFZyBotSA-eS7aLGMFDeq_vDQ@mail.gmail.com> <20131015134826.528289be@X220.ovitrap.com> <CACo--mvzj6K20YRZuXk0hCxpAvPxKQYUs-K6Te48uJ+Xc-=8ag@mail.gmail.com> <20131015163434.5834988c@X220.ovitrap.com> <1381837542.757.45.camel@archlinux>

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Hi,

On Tue, 15 Oct 2013 13:45:42 +0200
Ralf Mardorf <ralf.mardorf@alice-dsl.net> wrote:

> On Tue, 2013-10-15 at 16:34 +0800, Erich Dollansky wrote:
> > The power meter will show you the actual W consumed by the device
> > but not the VA that your UPS will have to deliver.
> 
> The shown kWh can be converted to average W, where VA more or less is
> equal to W.
> 
> http://www.rapidtables.com/convert/electric/wh-to-watt.htm
> http://askville.amazon.com/Watt-Volt-Amper/AnswerViewer.do?requestId=3916116

from your link:

'For what are known as "reactive loads" the answer is no. Reactive l'

A PC is a reactive load.

> 
> Anyway, you can't trust those power meters.

Do not think so bad. It is all a matter of price.

Erich



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