RE: [TCML] Almost there... MMC

["Stephen J. Hobley" <shobley@xxxxxxxxxx>]

Thanks - that's what I'll do.
 
I need to get 4 more caps...
 
Steve
 
 
Stephen Hobley Photography
www.stephenhobley.com
317 201 4281
 
The Laser Harp Project - www.stephenhobley.com/build

________________________________

From: tesla-bounces@xxxxxxxxxx on behalf of DC Cox
Sent: Wed 3/26/2008 2:30 PM
To: Tesla Coil Mailing List
Subject: Re: [TCML] Almost there... MMC



Erms x 2.5  is very good and you will not have cap failures.

These are all wired in series, but you don't have enough.  Operating them
with a 12 kV transformer will stress them and they will begin to fail over
time.  Bad part is, as a cap starts to fail, becomes shorted, then the
stress increases on all the remaining caps in the series.

I recommend at least 16 caps wired in series for a rating of .0125 uF, 32 kV
per string.  With a 12 kV transformer you would use two strings in parallel,
so you need 32 MMC caps, not 12.

If you fire me an email off-list I can email you some photos showing what an
MMC cap bank looks like.

Dr. Resonance





On Tue, Mar 25, 2008 at 8:57 PM, Stephen J. Hobley <shobley@xxxxxxxxxx>
wrote:

> In the TC parts kit I ordered there are 12 capacitors - each one is
> 0.15mf 2000V. I also have a big bag of 10Meg 1/2 Watt bleeder resistors.
>
>
> How do I go about choosing a wiring configuration? Serial/parallel
> etc...
> The more sites I read, the more options there seem to be, and the more
> confused I get.
>
> I'm starting to work with the Tesla map program, and although it's
> really good with numbers, it's not so good at answering my questions :-)
>
> This is the last piece of the puzzle; any help in slotting it into place
> would be greatly appreciated.
>
> Steve
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
>
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