Re: Current splitting inductor

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

Original poster: "rheidlebaugh by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com>

This may be a little large, but It may give you some idea. I had a MILLER
welder that used 2 screw drive adjustments to change the current. One side
of the transformer core moved close and space as the 2 screws turned with a
chain drive on both screws so they turned at the same time. My welder was a
3 phase 440v in 100v - 1000 amp out I used for plateing and stripping.
Winding buzz or hum can be stoped with a dunking in a liberal slosh of
fiber-glass resin/hardner or liquid epoxi.
   Robert  H  

> From: "Tesla list" <tesla-at-pupman-dot-com>
> Date: Mon, 31 Dec 2001 23:57:55 -0700
> To: tesla-at-pupman-dot-com
> Subject: Current splitting inductor
> Resent-From: tesla-at-pupman-dot-com
> Resent-Date: Tue, 1 Jan 2002 00:14:36 -0700
> 
> Original poster: "Steve White by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <slwhite-at-zeus.ia-dot-net>
> 
> I am in the process of building a current-splitting inductor for my
> pig-powered
> coil. The inductor will be used to equally distribute current to 2 parallel
> 240
> volt variacs, each handling 25 amps. The inductor is designed to handle 50
> amps. The inductor consists of an iron toroid about 5" in diameter with 2
sets
> of windings, each with 11 turns of 8 guage wire. I have essentially
duplicated
> a Superior Electric design for a similar inductor which they sell for over
> $100. Mine has cost me about $10 to build. I assume that because the magnetic
> field will be so intense that I need to secure the windings with something in
> order to keep the windings from moving and making noise. Can anyone recommend
> a
> suitable substance or method for securing the windings? The wire is Radio
> Shack
> megacable which has PVC insulation so it may be difficult for some substances
> to adhere to it. This wire was used for its flexibility and tight bending
> radius. Is tape strong enough? If so, what kind? I was also thinking of
> liberally applying RTV to the windings to encase them. Does anyone know what
> the Superior Electric inductor uses?
> 
> Steve: Coiling in Iowa
> 
> 
>