Re: run capacitors for tc use

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

Original poster: "Bert Hickman by way of Terry Fritz <twftesla-at-qwest-dot-net>" <bert.hickman-at-aquila-dot-net>

Hi Jimmy,

Connecting a bunch of these caps in series should work as a TC tank cap. 
The voltage rating for MO caps is VAC RMS, but at 60 Hz. It would be 
prudent to derate the voltage rating to 33-50% of this for RF use, since 
internal stresses (in particular the risk of partial discharge damage on 
the polypropylene (PP) dielectric) increase substantially with increasing 
frequency. You'll need to connect quite a few in series anyway to get the 
capacitance down to a usable range. Connecting 20 or more of these caps in 
series should do the trick for a 15 kV system.

Since MO caps are oil impregnated and metal cased, you may also want to put 
the capacitor bank inside a housing to protect you from a catastrophic 
failure (hot oil and flying capacitor innards). Good luck!

Best regards,

-- Bert --
-- 
Bert Hickman
Stoneridge Engineering
"Electromagically" (TM) Shrunken Coins!
http://www.teslamania-dot-com

Tesla list wrote:
>Original poster: "jimmy hynes by way of Terry Fritz <twftesla-at-qwest-dot-net>" 
><chunkyboy86-at-yahoo-dot-com>
>
>usamfg-dot-net were selling 2200v 1.02uf capacitors made by aerovox. on the 
>aerovox website it said that the n-series are extended foil construction 
>with plain or rough polypropylene and kraft; liquid impregnation. isn't 
>that what you want for a tc capacitor? and is it 2200v rms or peak?
>
>JImmy
>