Re: Why pole pigs are rare in Europe

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Yurtle Turtle by way of Terry Fritz <teslalist-at-qwest-dot-net>" <yurtle_t-at-yahoo-dot-com>

I just came back from Honduras, where they distribute
a considerable distance at 240/120. They get
considerable variations from one side of the line to
the other. And one neighbor with a big load can dim
quite a few neighbors. I'd hate to think what my 25
kVA pig would do as far as voltage drop and RF trash.
Right now, I share my 14.4 25 kVA ground hog with only
several neighbors, which probably isolates most
everyone else. With everyone on the same pig/hog, I
would think you'd run a greater risk of messing up
someone's electronics with RF.

We are spoiled with our dead-on 240/120 v.

Adam

--- Tesla list <tesla-at-pupman-dot-com> wrote:
 > Original poster: "Ben McMillen by way of Terry Fritz
 > <teslalist-at-qwest-dot-net>" <spoonman534-at-yahoo-dot-com>
 >
 > I thought the idea of HV distribution was to reduce
 > line
 > loss? It would seem to me that LV distribution at
 > 220v
 > would introduce quite a bit of resistive line loss..
 > especially for higher current services..
 >
 > Coiling In Pittsburgh
 > Ben McMillen
 >
 > --- Tesla list <tesla-at-pupman-dot-com> wrote:
 >  > Original poster: "Stephen Conner by way of Terry
 > Fritz
 >  > <teslalist-at-qwest-dot-net>" <steve-at-scopeboy-dot-com>
 >  >
 >  > I found the following tidbit in the Encyclopaedia
 >  > Britannica.
 >  >
 >  > "The voltage for residential services in the
 > United
 >  > States is uniformly 120
 >  > volts, and in Europe it is mostly 200 or 220
 > volts, a
 >  > difference that leads
 >  > to considerable variation in distribution
 > methods.
 >  >
 >  > In the United States the voltage is reduced in a
 >  > distribution substation to
 >  > 2,400 to 13,800 volts, and a second reduction is
 > made to
 >  > utilization
 >  > voltage by means of a number of small
 > transformers
 >  > mounted on poles, or
 >  > situated in vaults, known as distribution
 > transformers.
 >  >
 >  > In Europe the subtransmission or primary
 > distribution
 >  > voltage is brought
 >  > into a kiosk or vault and reduced to 220 volts,
 > and a
 >  > relatively large area
 >  > is covered at 220 volts. Distribution transformer
 > output
 >  > in the U.S. ranges
 >  > generally from 5 to 100 kVA, whereas in Europe it
 > is
 >  > generally from 50 to
 >  > 600 kVA."
 >  >
 >  > So there you are. In the US, you have pole pigs.
 > In
 >  > Europe, we have giant
 >  > ground hogs instead :) Luckily, scrap microwave
 > ovens are
 >  > just as common
 >  > either side of the pond.
 >  >
 >  > Steve C.
 >  >
 >  >
 >