🚀 go-pugleaf

lsg001@cck.coventry.ac.uk (Graham Wilson) writes:

> 
> ** I was wondering whether people might be able to answer a question for
>    me ?
> 
>    While walking around Texas (DIY store) the other day I came across a 
>    "power saver" device. This box, the size of a double-adaptor plug, is
>    designed to replace the conventional plug on a domestic fridge / freezer.
> 
>    According to the blurb on the back, the device helps to save 40 - 60 %
>    of the electricity which the freezer would normally use. When the unit
>    is "saving" electricity a red light on the front of the saver plug 
>    comes on.
> 
>    The unit costs 25 pounds and according to the cost saving information 
>    printed on the carton this unit would pay for itself in approximately
>    one year.
> 
>    What I wanted to know was how does this unit operate the freezer 
>    while using less electricity ? If the unit does work, why don't they
>    fit these devices as standard to freezers and other equipment ? 
> 
>    Thanks.
> 
> 
>    
> -- 
>          *********************************************************
>          *      Graham Wilson      *  lsg001@cck.coventry.ac.uk  *
>          *     LL.B.  Law  III     *     Coventry  University    *
>          *********************************************************

The only power saver device is called a power factor correction circuit. 
It adds capacticance to the line to reduce the pahse shift in current 
caused by inductive loads (motors, power supplies etc). Since utilities 
charge according to meters which measure Volt-Amps, this can be reduced 
by reducing the phase shift towards zero. thus making reducing the V-A's 
towards the Wattage .. or in other words reducing the  reactive power so 
that only only REAL power is measured.
This is usually done by using large caps or solid state methods used i  
switcher technology.

I can't speak for your device or its claims whoever, but this sounds like 
what it is trying to accomplish.

dino@inqmind.bison.mb.ca
The Inquiring Mind BBS, Winnipeg, Manitoba  204 488-1607