Re: drsstc

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

Original poster: "David Rieben" <drieben-at-midsouth.rr-dot-com> 

Bob(s):^),

The latest capacitor technology has caps of much smaller
volume/energy ratios than either of the caps that you mention.
Difribrillators have a capacitor of appr. 5.2 kV at around
35 to 40 uFD rating and they are not much larger than say two
combined microwave oven filter caps. I suppose their
peak current rating dosen't have to be that great since
they're designed to discharge across a relatively high
resistance - human chest :^O Even with the conductive gel
that they apply to the skin before shocking, the resistance
would still probably be in the dozens, if not hundreds of
Ohms.

David Rieben

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Friday, October 22, 2004 6:28 PM
Subject: Re: drsstc


 > Original poster: "Bob (R.A.) Jones" <a1accounting-at-bellsouth-dot-net>
 >
 >
 >
 >
 >  > Original poster: "robert heidlebaugh" <rheidlebaugh-at-desertgate-dot-com>
 >  >
 >  > Just how large is that 100 ufd  1.5 Kv capacitor ? My o.5 ufd 30 Kv
 >  > capacitors are 3 cu ft in size.
 >  > --   Robert    H
 >  >
 >
 > The size of caps is approximatly proportional to their energy capacity for
 > the same type of cap.
 >
 > So as a comparision, your cap is 225J the other cap is 112.5J.
 > So it would be appoxematly half the size of yours.
 > That assumes yours is a rated at 30kVpk AC -at- 5kHz.
 >
 > Actually I think your cap is large for its rating. Is it a high rep pulse
 > cap?
 > I have a 1.5cu ft 27uf 5kV ie 337J but its low rep low peak current.
 >
 > Bob
 >
 >