Re: Ballast for pole pig. (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Mon, 13 Aug 2007 08:25:58 -0400
From: Crispy <crispy@xxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Ballast for pole pig. (fwd)

Hi Tyler,

A resistive ballast is less efficient, because it actually dissipates
power in the form of heat.  An inductive ballast does not actually
dissipate any power.  However, a resistive ballast is generally easier
to build.  Many people have used water-cooled heating elements or large
saltwater resistors as resistive ballasts.  An inductive ballast for
something like a pole pig usually requires tight winding of relatively
large wire around a large core.  If power is plentiful, and you don't
plan on operating near your maximum available power, a resistive ballast
should do fine.  Something else you may consider is a high voltage
capacitive ballast.  I've used this successfully with MOTs but I'm not
sure about the implications with pigs.

(Note: I've never used pole pigs myself, but I've read a lot about them,
and I have ballasted MOTs)

Chris


On Sun, 2007-08-12 at 21:20 -0600, Tesla list wrote:
> ---------- Forwarded message ----------
> Date: Sun, 12 Aug 2007 20:01:22 -0700 (PDT)
> From: Tyler Pauly <rpggod714@xxxxxxxxx>
> To: tesla@xxxxxxxxxx
> Subject: Ballast for pole pig.
> 
> Hello, I'm a "seasoned beginner" with tesla coils, but
> I'm trying my first with a pole pig, and my first
> transformer that needs a ballast.  Now, I understand
> why I need a ballast and how they work/what they do,
> but I do not know how to build one or what to build
> them from.  I have tried searching the database, but I
> was just wondering if I could get some fresh advice. I
> was thinking of using a primary ballast (which I think
> is the norm), but I'm not sure if a resistive or
> inductive ballast is more efficient, cost-effective,
> easy to build, etc. Thanks for any help!
> 
> Tyler
> 
> 
>        
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