RE: PFC and PVC caps

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Lau, Gary" <Gary.Lau@xxxxxx>

I think WinTesla does a fair job of calculating a PFC value.  I though
it had been on Terry's web site, but I can't seem to see it?

http://hot-streamer.com/rscopper/dload5.html

A PFC must be a capacitor with a continuous AC voltage rating.  Motor
RUN capacitors are commonly used, not to be confused with motor START
caps, which are not suitable, and will smoke if you try them.  Aside
from eBay, the best source for run caps is USA manufacturing -
http://www.usamfg.net.  The voltage rating does not need to be any
higher than your mains voltage.

PVC appears to be a relatively low-loss dielectric, but may have
mechanical (low melting point?) issues.  And the volumetric efficiency
of using PVC pipe is poor.  As soooooooo many others have said - just
build an MMC.

Gary Lau
MA, USA


> Original poster: Bobby Amaya <dimon20042004@xxxxxxxxx>
>
> Hi all,
>
> 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
}:-)
>
> Robert,
>