Re: term understanding: voltage reversal.

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Jim Lux <jimlux-at-earthlink-dot-net> 

At 08:01 AM 2/19/2004 -0700, you wrote:
>Original poster: Sean Taylor <sstaylor-at-uiuc.edu>
>
>>More robust 45 kV caps will survive in a similar environment: 
>>http://cgi.ebay-dot-com/ws/eBayISAPI.dll?ViewItem&item=2596506003
>>
>>Since the problem is associated with oscillatory discharge in the tank 
>>circuit, the method of charging the cap (AC or DC) is irrelevant.
>>
>>Best regards,
>>
>>-- Bert --
>
>
>This 45 kV cap that you have a link to is a 31xxx series cap, which I 
>believe are only rated for 1 PPS, that is if I remember correctly . . . 
>Anyone have more info on this cap?  It may work in a lower power coil 
>(it's about the right size for a 9/30, at LTR for a stationary gap), but I 
>would expect it to heat up a little more than one of hte 37xxx caps.  Like 
>I said, that is if I remember the model numbers correctly.  Feel free to 
>comment if anyone knows for sure . . .
>
>Sean Taylor
>Urbana, IL

The 1 pps caps can be run at a higher rate if suitably derated... It's all 
a matter of voltage reversal, voltage, and RMS current (thermal limits)