Re: Watts o' Problems

To: tesla-at-pupman-dot-com
Subject: Re: Watts o' Problems
From: "Dan Kunkel" <dankunkel-at-hotmail-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
Date: Mon, 01 May 2000 17:56:54 -0600
Approved: twftesla-at-uswest-dot-net
Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme




>From: Tesla List <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: Re: Watts o' Problems
>Date: Sun, 30 Apr 2000 23:59:15 -0600
>
>Original Poster: Terry Fritz <twftesla-at-uswest-dot-net>
>
>At 03:01 AM 05/01/2000 +0000, you wrote:
>snip
>
> >I really like that MMC calculator, it sure is a time saver! After looking 
>at
> >some of the accompanying documentation, I have a question...it appears 
>that
> >those panasonic caps (1600v .056 uf) are rated for DC voltage. Wouldn't 
>you
> >have to derate them to at least half that value, say between 530-800 
>volts
> >for Tesla Coil duty?
> >
> >Dan
> >
>
>
>Hi Dan,
>
>	You can run the caps at their full rated DC voltage in TC use.  The
>problem (ionization of internal air gaps) with running them at high voltage
>is a long term (years) problem.  Since we run TC caps for only hours a year
>they will not have any problem.  We have studied the caps running under
>some very sever conditions and they are very tough in TC use.  I run these
>caps at 2000 volts and 3 amps RMS with no problem.  Don't go over 2000
>volts or you run the risk of tearing them up from internal arcing.  At 4
>amps RMS they get too hot and internal failure is a risk.
>
>Cheers,
>
>	Terry
>
Great thanks for the good news! I also downloaded some of your other TC 
programs...they are very helpful. Thanks for your help once again.

Dan

________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail-dot-com