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Re: PFC and PVC caps
Original poster: "David Rieben" <drieben@xxxxxxxxxxxxxxx>
Fellow list member Bart Anderson's Java Tesla designer will figure
that in with all of the other pertinent TC parameters when you are
figuring all of your data for your proposed coil.
As for the using PVC pipe as the dielectric itself, I have not person-
ally heard of using this. I HAVE heard of using a section a 4" PVC
pipe to contain the "guts" of a homemade rolled polyethylene/alumi-
num foil in oil dielectric capacitor but this is pretty much now "stone-
aged" capacitor technology for coilers. MMCs (multiple-mini-capa-
citors) are just as economical, if not more so, than homemade rolled
caps and are much more reliable, less bulky, and MUCH less of a
general HEADACHE to build. Most coilers opt for the Cornell-
Dubilier CD-942 series PP dielectric, extended end foil construction
type snubber caps for this purpose.
PVC itself would make a rather lossy dielectric and PVC pipe often
has air pockets in the PVC wall material and also can hold some
moisture. This would render it unsuitable as a capacitor dielectric.
Also, just a single wall of pipe would probably have too low of a cap-
acitance to be of any practical use in a typical sized coil.
----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
Sent: Friday, November 25, 2005 8:59 AM
Subject: PFC and PVC caps
Original poster: Bobby Amaya <dimon20042004@xxxxxxxxx>
Can someone please tell me is there some kind of equation to figure
out how much capacitance I need for PFC on a transformer? And what
kind of capacitors am I supposed to use for this? And while on the
subject of capacitors, has anyone ever tried to use PVC pipe as the
dielectric of a capacitor? Any thoughts on this would be appreciated }:-)