Speaking of Electrum: was RE: Giant DC coil to run in Australia

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "GEORGE STEIN" <afa2fg@xxxxxxx>

I have seen several pics of the Electrum construction over the last few 
years...Was it ever completed???   Did it work???   Any pictures of it in 
operation???

Later
George Stein
Bedford, Va.

> From: "Tesla list" <tesla@xxxxxxxxxx>
> To: tesla@xxxxxxxxxx
> Subject: RE: Giant DC coil to run in Australia
> Date: Mon, 10 Jan 2005 07:54:26 -0700
> MIME-Version: 1.0
>
>
> Original poster: Greg Leyh <lod@xxxxxxxxxxx>
>
> It's true that the charging reactors will work fine in the primary 
> circuit, although the 3 reactors will undoubtedly contain more total mass 
> [and $] than a single reactor on the DC.  The reactor for Electrum is 2H, 
> 8.3Apk, and weighs about 100lbs.  I seem to remember it costing around 
> $1800 from Stangenes, in 1997 $.  Here's a pic of it:
> http://www.lod.org/Projects/electrum/NewZealand/pages/nzreactor.html
>
> The 2H reactor happens to be a fairly standard build for Stangenes.
> Perhaps CAUAC has some slightly more exotic requirements.  Does anyone 
> know the Cpri value for CAUAC?
>
> -GL
>
>
> > Original poster: "Steve Conner" <steve.conner@xxxxxxxxxxx>
> >
> > >It appears that the only thing limiting the charging current is the
> > >impedance of the transformers and power feed.
> >
> > As a fan of DC coiling I was pretty interested in the "CAUAC" thing. An
> > absolutely awesome project and I can't wait to see pictures of the next run.
> > Anyway I saw the following quote-
> >
> > "In fact I finally had to stop because my limiters started to smoke; they
> > were pulling over 100 amps continuous through 8 AWG wire!"
> >
> > So I assume Syd used three reactors in the three incoming AC lines. If I
> > remember my power electronics right this does limit the rectifier output
> > current by introducing "overlap" but it would probably work a hell of a lot
> > better with a real resonant charging choke. But that charging choke will be
> > big and heavy (Maybe the $6,800 price included a free truck?)
> >
> > If you wanted to make your own choke, you could try dismantling a pole pig
> > and reassembling it with an air gap :^)
> >
> > Steve C.