>-----Original Message-----
>From: Nerad, Daren HS-SNS [mailto:[email protected]]
>Sent: Thursday, May 03, 2001 1:32 PM
>To: Price, Ed; '[email protected]'; [email protected]
>Subject: RE: AC Power Primer?
>
>
>It all boils down to $$$s!
>Notice you don't see 110 V on the lines, probably not even 115
>or 117 but as
>close to 120V as they can keep it (except for you folks in CA,
>then this is
>a digital thing, HA!).
>
>WHY?
>
>You consume more Watts if the V is greater!
>
>Check your wall outlet, what does it read?
>
>IT would be interesting to use this forum to do a quick & dirty survey.
>Granted we can only hit where engineers feel like making
>measurements, &
>when they do, but it would be interesting...
>
>Daren A. Nerad
>EMC Engineer
>
[SNIP]
Daren:
That's true for only a small amount of your total residential load. In most
cases, I'm happy to be on the high end of the voltage tolerance. My electric
saw cuts better, my hedge trimmers let me move a bit faster, and the air
conditioning fan moves more air.
My big electric loads (refrigerator & air conditioning) may draw more Watts
when they run, but they move the heat faster, and thus shut off sooner. It's
not the Watts you pay for; it's the Watt-hours. There's good consulting
money for those who can predict the optimum voltage versus run-time to
minimize total cost.
The higher voltage may cause the incandescent lights to put out a bit more
light than you expect, and the lights will fail sooner. But most of my
lights are either fluorescent or have dimmers, so I can set the amount of
light I want.
Ahh, the weekend draws near, and I can instead contemplate the economy. My
power company wants to add a surcharge due to the rising cost of gasoline.
The gasoline station is adding a surcharge due to the rapidly rising cost of
electricity. The water company has already added a surcharge due to the
increased cost of electricity and gasoline. My sewer fees are indexed to the
cost of water. And the donut shop has stopped giving a baker's dozen. This
must have been what life felt like when compound interest was discovered.
Regards,
Ed
Ed Price
[email protected]
Electromagnetic Compatibility Lab
Cubic Defense Systems
San Diego, CA USA
858-505-2780 (Voice)
858-505-1583 (Fax)
Military & Avionics EMC Services Is Our Specialty
Shake-Bake-Shock - Metrology - Reliability Analysis
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