Re: Watts o' Problems

>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:
> >I really like that MMC calculator, it sure is a time saver! After looking 
> >some of the accompanying documentation, I have a question...it appears 
> >those panasonic caps (1600v .056 uf) are rated for DC voltage. Wouldn't 
> >have to derate them to at least half that value, say between 530-800 
> >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.
>	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.


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