High power HVDC cap design.

• To: tesla-at-pupman-dot-com
• Subject: High power HVDC cap design.
• From: "Sam Barros" <sambarros-at-hotmail-dot-com> (by way of Terry Fritz <terryf-at-verinet-dot-com>)
• Date: Wed, 18 Nov 1998 06:01:46 -0700
• Approved: terryf-at-verinet-dot-com

  Hello everyone,


 I'm trying to design (and hopefully build) a 500KV DC, 1KJ Marx 
generator and I was wondering if anyone could help me out with cap 
design. I know this isn't really Tesla-Related, but I guess since Tesla 
Coils use high performance capacitors, and a lot of research has gone 
into building them, this would be the best palace to look for info...
 Basically I was thinking of charging it with a MOT connected to a 25 
stages cascade, outputting about 50KV (comments here would also be 
appreciated). Than I could use a 10 stage Marx arrangement to bring the 
output to 500KV. The main problem lies in the capacitor construction: 
These capacitors are very high power and buying them is out of question 
(100Joule capacitors must cost so MUCH).
 But, since they are going to work on DC mode, with no destructive RF or 
high BPS (I doubt it could go beyond 10BPS), I figured they could be 
made using some cheap, easily obtained dielectric.
 Well, I would like to know if anyone has tried a MARX before and if 
anyone has ideas for a good cap design.
 Please contact me off-list at sambarros-at-yahoo-dot-com

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