Question on Powersave 1200 - alt.engineering.electrical

Message from discussion Question on Powersave 1200

bud--

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More options Jul 9 2007, 3:07 pm

Newsgroups: alt.engineering.electrical

From: bud-- <remove.BudN...@isp.com>

Date: Mon, 09 Jul 2007 02:07:13 -0500

Local: Mon, Jul 9 2007 3:07 pm

Subject: Re: Question on Powersave 1200

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Salmon Egg wrote:
> On 7/7/07 4:55 PM, in article
> MPG.20f9f1515775afbe98a...@news.individual.net, "krw" <k...@att.bizzzz>
> wrote:

>> Residential customers are *not* charged for PF, at least in the US.
>> The only claim they could weasel around is the heating of your
>> internal home wiring due to reactive current.

> I tried mining Their faq to find out how the device works. I could not.

> It is true, we get charged for actual energy consumed on our side of the
> meter. That includes extra heating of the conductors outside the appliance.
> It is not clear to me how this device knows how much correction is required
> for the various devices under various loads. I also agree, that if there is
> extra current flow in the appliance, it is difficult to understand how that
> waste energy can be reduced by this device.

Correcting power factor on industrial is a good idea, as BillB alludes
to, because industrial users pay a big penalty for reactive power. I
agree with Bill above - US residential users do not - no advantage.

Low power factor increases the current which increases the I2R losses in
wires. The only wires corrected are from the meter to the correction
point - the panel (and the service neutral?). Negligible distance,
negligible saving.

It would be rather hard to improve the power factor of water heaters,
heaters, coffee makers, toasters.

In the patent application, the power factor correction is set with
switches (fixed). The reactive load cycles, so some of the time there is
over correction increasing the I2R losses.

Do they claim the metered power will go down when the current goes down
(confusing power and VA)? I don't remember but I wouldn't be surprised.

> I also have to include that this is a scam.

I agree.

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bud--

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