[TCML] pad mount transformer tesla coil
resonance at wildblue.net
Mon Nov 26 10:39:30 MST 2007
The 30 Ohms acts as a "Q spoiler" and is very effective in reducing the high
Q of the transmission line. The small air core inductor clips the highest
freq spikes. These both work very well in the many pole xmfr systems I
have manufactured over the past 40 years.
Resonance Research Corp.
----- Original Message -----
From: "Lau, Gary" <Gary.Lau at hp.com>
To: "'Tesla Coil Mailing List'" <tesla at pupman.com>
Sent: Monday, November 26, 2007 6:54 AM
Subject: RE: [TCML] pad mount transformer tesla coil
Why do you suggest that a pad-mount transformer requires more protective
measures than a pole-mount transformer? Both operate in oil.
I would also question the use of inserting a 30 Ohm resistor to protect the
unit. R-C networks provide high frequency attenuation, but a tiny resistor
and/or inductor do not. The same rationale for NST protection applies here,
though it's not clear that a distribution transformer requires any
Regard, Gary Lau
> -----Original Message-----
> From: tesla-bounces at pupman.com [mailto:tesla-bounces at pupman.com] On
> Behalf Of resonance
> Sent: Monday, November 26, 2007 1:11 AM
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] pad mount transformer tesla coil
> They are not widely used because most experimenters do not use good
> transient supression on the HV side of their xmfrs. Pole units, in oil,
> provide superior protection, but even then, should be protected with a
> resistor network. I use 30 Ohms at 3 kW resistance.
> The pad units work fine but a small air core coil should be used and also
> resistive filter --- both on the HV side of the xmfr.
> Dr. Resonance
> Resonance Research Corp.
> ----- Original Message -----
> From: "Clive Hansen" <mrclivehansen at gmail.com>
> To: <tesla at pupman.com>
> Sent: Sunday, November 25, 2007 7:11 PM
> Subject: [TCML] pad mount transformer tesla coil
> > Hello,
> > Has anybody tried using a padmount transformer to drive a coil? I
> > haven't seen this or heard of anyone using a transformer like this one
> > here:
> > http://cgi.ebay.com/New-Cooper-75-KVA-1PH-OA-Pad-Mount-
> > This is merely academic, I just wondered if there was a good reason
> > these
> > aren't widely used.
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> > Tesla at www.pupman.com
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