Re: Power consumption

Interesting that most of what you mention are motor loads. Yes, they draw surges.
But not the surge that a bank of videos all trying to charge filter capacitors at
the same time draw.

I just try to design around worst case scenarios. Saves me a lot of time fixing
things later.

John Robertson wrote:

> Well, I don't know how much a problem this would be in a home environment,
> what about that air conditioner you have hooked up to it's own circuit? It
> draws about twenty amps when it kicks in...or the heavy duty home vacuum
> cleaner or... so I don't think a half dozen videos turned on at once is
> going to affect anything very much or we shall have to re-think the entire
> house wiring and balancing thereof. Furnace blowers, deep freezers,
> fridges, etc. and all sorts of high surge are turning on at random in the
> average house with no ill effects (putting on flame-proof clothes and
> running for cover)
>
> John :-#)#
>
> Thanks RoDger!
>
> At 12:30 AM 10/13/00, Rodger Boots wrote:
> >The surges I was talking about weren't necessarily the video games. I'll give
> >you an example: out at the farm one night I asked a friend what he thought
> >would happen to the lights in the machine shed when I turned on the radial arm
> >saw. He (of course) guessed they would dim. WRONG! They got quite a bit
> >brighter. Why? Because they were on the other "phase" and the voltage
> >dropped
> >in the neutral when the saw was turned on got added to the other phase.
> >
> >So now, the extreme example. You fire off a dozen or two video games all at
> >once on the same side of the neutral. Now what happens to the VCR and TV
> >in the
> >living room when the line voltage surges to 150 volts (albeit briefly)?
> >
> >Just something to think about.
> >
> >
> >Clay Cowgill wrote:
> >
> > > >But seriously, if you are going to wire a room please do yourself a favor
> > > >and
> > > >try to keep the load balanced about both "phases" of the incoming 240
> > > >volts.
> > > >Will cost you a little less on power (power company meter is kinder to
> > > >balanced
> > > >loads, or so I've heard), and keeps surges to a minimum.
> > >
> > > The audiophile-looneys (sorry if I'm offending any audiophile-looneys out
> > > there ;-) are big on balanced power for reducing ground loop hum and noise.
> > > (Not *quite* the same as balancing both legs on the 240V service, but it's
> > > an interesting idea.) They tend to take 120V in and use a torroid to make
> > > two opposite taps each of 60V to run the electronics off of. I know I
> > > always seem to get hum out of my video games (Star Wars and Asteroids seem
> > > particularly finicky)-- might be interesting to see what one of those
> > things
> > > would do for it...
> > >
> > > -Clay
> > >
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--
Windows:
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16 bit patch for an
8 bit operating system written for a
4 bit processor by a
2 bit company that can't stand
1 bit of competition.
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