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Re: [TCML] Taming the Beast: Inductive Ballast vs. Variac, PFC



thanks much! I'll definitely be making use of this.

--- David Dean <deano@xxxxxxxxxxxxxxxx> wrote:

> FYI I have repaired the errors and omissions 
> The files you want should have a timestamp of
> 05/26/08 04:12 pm
> That is eastern daylight time (UTC -4), 1 hour ahead
> of CDT which we have here 
> in Texas.
> 
> On Monday 26 May 2008 12:31:05 pm David Dean wrote:
> > I have a spreadsheet designed just for that type
> of ballast.
> > It will calculate inductance and inductive
> reactance, as well as total
> > length of wire, for each layer of a multi-layer
> solenoid using  Wheelers
> > formula. It calculates some other things as well,
> like power lost in the
> > ballast due to resistive heating, etc. but those
> are only valid for 240V in
> > 14400V out transformer. I need to change that. If
> you insert a core of iron
> > wires, or ferrite type material into the ballast,
> it will increase the
> > inductance considerably, but the spreadsheet only
> does the air core
> > calculations. That will allow you to play "what
> if" and see what you can do
> > with the wire you have.
> >
> >  http://deanostoybox.com/temp/
> >
> > ballast.ods is the OpenOffice native format,
> > ballast.xls is for Microsoft eXcel. If you do not
> have either, OpenOffice
> > is free and can be found at
> http://www.openoffice.org/
> 
> 
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> 



      
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