Re: Ebay Pole Pigs

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

Original poster: "Hydrogen18" <hydrogen18-at-hydrogen18-dot-com> 

This is kind of unrelated, but thanks for confirming this for me guys. I
know some people who think that a transformer without shunts will draw
infinite current(assuming the windings dont have resistance). I could never
find documentation on this though. I suppose it has to do with the coupling
of the windings.
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, April 20, 2004 5:37 PM
Subject: Re: Ebay Pole Pigs


 > Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com>
 >
 >
 > Yes, Ken, that's correct.  Unballasted pigs in short circuit like a TC or
 > Jacob's Ladder draw more current than most 220 V services can provide.
 > Also, you tend to fry the pig.
 >
 > Dr. Resonance
 >  >  >
 >  >  >
 >  >  > The reason is a pole pig does not see short-circuit operation in
power
 >  >  > distribution applications.
 >  >  >
 >  >  > In a TC circuit when the sparkgap fires the power xmfr is, for a
short
 > time,
 >  >  > in a direct short circuit.  External current limiting must be
provided
 > as
 >  >  > the short circuit current draw for a standard pole xmfr is 733
Amperes.
 >  >
 >  > Where does this number come from? With numerology, I can figure 733
amps
 >  > with a 10kVA transformer built to 5.7%IZ that's shorted out and being
fed
 >  > 240 volts. Is this what we're talking about as "standard"?
 >  >
 >  > KEN
 >  >
 >  >
 >  >
 >
 >
 >