Re: [TCML] Can i use an NST as ballast ?

["Teslalabor" <teslalabor@xxxxxxxxxxx>]

Hi Dan,
in which way the 500ft spool does the current-limiting? I think its mostly 
resistive ballasting with only a small amount of inductive ballasting. But 
if you have nothing else availlable, this is a good method indead.

Stefan

----- Original Message ----- 
From: "McCauley, Daniel H" <daniel.h.mccauley@xxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Tuesday, October 26, 2010 2:14 PM
Subject: Re: [TCML] Can i use an NST as ballast ?


> If you are looking for an easy solution to ballast one of the common 
> 14.4kV GE potential transformers, look below.
>
> Terry Blake came up with the great idea of using a 500ft spool of 12AWG 
> stranded wire from Home Depot as the ballast.  When wired in series with 
> the 115VAC input to the potential transformer, it limited current to about 
> 240mA output at 14.4kV.  What a great solution!
>
> You could probably also scale this for use with other transformers 
> accordingly.
>
> Of course, for a pole transformer, the best ballasting solution is a 
> Lincoln Arc-Welder which can be had for very inexpensively on craigs list.
>
> Dan
> http://www.easternvoltageresearch.com
> LED Sequencer Kit Available - VTTC Stacatto Controller COMING SOON!
>
>
>
> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf 
> Of Andreas
> Sent: Monday, October 25, 2010 5:19 PM
> To: Tesla Coil Mailing List
> Subject: EXTERNAL: Re: [TCML] Can i use an NST as ballast ?
>
> Ok, the power output from my potential transformer will never be more than
> the ballasting NST. So if my NST is rated 500VA i will get 500VA or less
> from my potential transformer. But if i add two 500VA NST:s in parallel i
> get 1000VA or less.
>
> Guess its time to find some MOT:s.
>
> Thansk for the help guys.
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