Re: Resonant Transformer

["Jim Lux" <jimlux-at-jpl.nasa.gov> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

> 
> Hi list, 
> 
>  I have been in a local plant here in Adelaide that used the devices
below 
> to heat continuous lengths of pipe to a glowing red hot before coating
with 
> a powdered protectant. The field generated around these machines was 
> awesome, (three in a row). They each had their own 3 phase supply panel 
> and operated at a supply voltage of 9kv/500Kva, each! I remember each 
> panel being hooked up to the field coils with cables as thick as a mans 
> leg. The first time I stood near one it destroyed my lcd watch and I
swear 
> that as you moved your head/shoulders you could 'feel' the field. 

You probably could feel it.  In a strong magnetic field, movement generates
enough induced voltage/current to be perceptible.  A well known side effect
of MRI machines, which have a (typically) 1.5 Tesla field (that's 15000
Gauss).


As there 
> was an operator with his head almost inside the machines making sure 
> everything was going to plan I can't help thinking about where he is
today! 
> 
> Best Regards 
> 
>  Robin. 
>   
> >
> >   
> >
> > One could probably cite induction heating as the major 
> > industrial application of resonant transformers. The 
> > high freq currents are circulated through copper 
> > tubing in a spiral in which the sample metal is 
> > placed. Within seconds the metal is glowing orange 
> > hot. The volume of high freq amperage in the copper 
> > tubing is so high that water must be sent through the 
> > tubing for cooling.  These are mostly all solid state 
> > devices today. HDN 
> >
> > ===== 
> > Binary Resonant Systemhttp://www.insidetheweb-dot-com/mbs.cgi/mb124201 
> >
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> 
>