Re: [TCML] Help to verify connections of ballast

[Andreas <andreasho@xxxxxxxxxxx>]

Hi,

I connected it in series with the primary of the nst while the secondary was 
shorted to mesure currentdraw. The AC and DC is the same setting on my DMM. 
I didnt find the manual tho.
Dont have it here so i cant check the model/brand but it was "scy" or 
somthing simular.

About the wiring, i think it would be better if i understand the concept 
fully and not only how it need to be connected.

I think i did the wiring all wrong btw.

Is this how its done below.
For the transformer primary to act as an iron core inductor and not draw 
current i need to short the secondarys to the core/groundtap so it becomes a 
part of the core and not connect the mains ground or it will draw current ?
Is this wrong or right ?

Do i leave the core floating or not ?

If wrong how does it need to be connected  ?

Regards
Andreas
--------------------------------------------------
From: "Jon Danniken" <danniken@xxxxxxxxxxx>
Sent: Sunday, November 14, 2010 2:04 PM
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Subject: Re: [TCML] Help to verify connections of ballast

> Andreas H wrote:
> > Hi,
> >
> > I hooked my NST:s up in paralell with the secondarys shorted using
> > the primaries as ballasts for my larger HV transformer later on.
> > Its one 450VA and a 600VA NST. They are supposed to be shorted on the
> > output right ?
> >
> > I tried to mesure the current of each one before i hooked them up but
> > got strange reading that jumped all over the place.. hmm.
> > They both work to spec. so mayby my dmm is wierd.. (yes i mesured the
> > primary side and had it hooked up to A and COM)
> >
> > Here is a pic.
> > The black mains wires comes from the same source.
> > The wireing will be better arranged later, want to test if it works
> > first. :)
> >
> > http://i1212.photobucket.com/albums/cc446/tesladude/Ballast.jpg
>
> Sounds like you were trying to measure AC on a DC setting.  What meter do 
> you have, what setting was it on, and how exactly did you connect it.
>
> Can't tell anything from the pic, is there a wiring legend on the unit? 
> Need more information.
>
> Jon
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