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Re: [TCML] NST primaries
By the way, that is nice work.
The pressure cooker made a cool looking case.
I like the safety gaps.
The series/parallel switch is a nice touch. I had considered that.
----- Original Message -----
From: "David Dean" <deano@xxxxxxxxxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Wednesday, June 04, 2008 6:12 PM
Subject: Re: [TCML] NST primaries
> On Wednesday 04 June 2008 05:19:57 pm Mark Olson wrote:
> > Hello all,
> > My NST, originally a 15kv@120mA, has two prmary windings and two
> > windings. The primary windings are paralleled for 120v input.
> > If I rewire the transformer primaries in series (keeping phasing
> > can It be used with 240v input?
> Yes it can. I have done that with a 15/60 Francformer. You can see the
> After frying the secondaries by inputting 2.8kVA with a much larger than
> resonant tank cap (burned the insulation off of the secondary windings), I
> removed the transformer and used it for a ballast for (one of) my
> distribution transformers. The two 120V primaries in series for use with
> input of course. In that configuration the measured short circuit current
> the pig was 85mA.
> > I want to do this to decrease the input current requirement.
> > Thanks,
> > Marko
> > kc5gym
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