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Re: Alarm System Transformer

Subject: Re: Alarm System Transformer
From: Robert Macy <robert.a.macy@xxxxxxxxx>
Date: Mon, 19 Dec 2011 06:47:18 -0800 (PST)
Newsgroups: alt.security.alarms
References: <c3332c00-f2fd-4c48-b1e4-34c613b64edb@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> <73923e90-ced0-4855-bfdb-79c8f80b76a9@xxxxxxxxxxxxxxxxxxxxxxxxxxx>

On Dec 4, 6:59=A0pm, Jim <alarmi...@xxxxxxx> wrote:
> On Dec 4, 1:11=A0pm, H Brown <hehbr2...@xxxxxxxxx> wrote:
>
> > My home alarm system transformer is dead. =A0Parameters off the unit sa=
y
> > 16.5 VAC, 20VA. =A0I found a replacement unit that has 16.5VAC, 40VA. =
=A0I
> > think the 40 VA is 40 watts output which I believe should work since
> > my previous transformer only put out 20 watts. =A0Correct?
>
> It doesn't matter in this case .... because you are using a larger
> wattage transformer .... However ... keep in mind that VA is not
> equivalent to watts. A 40 VA transformer is only about 20 watts.

Never heard that 40VA into a resistive load is only 20W

Elaborate?

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References:
- Alarm System Transformer
  - From: H Brown
- Re: Alarm System Transformer
  - From: Jim

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