Thanks to all who replied to my PFC question, so now I know two things:
That motor start caps and run caps are very different things, and, more
importantly, that the caps I have ARE motor RUN caps, not start caps. ;)
Might MW oven caps also work? I've heard that they have an internal
resistor, so would this have a negative effect?
On Fri, 22 Oct 1999 16:31:53 -0600 Tesla List <tesla-at-pupman-dot-com> writes:
> Original Poster: "Lau, Gary" <Gary.Lau-at-compaq-dot-com>
> For kicks, I once tried using motor starting caps for PFC's. The
> became quite warm within less than a minute of run time. Useless.
> Start caps are only designed for brief, intermittent operation, when
> a motor
> is just spinning up. Motor Run caps are designed for continuous
> You want to use motor RUN caps for PFC's, not motor START caps. Too
> the START caps are so much cheaper!
> Regards, Gary Lau
> Waltham, MA USA
> >Original Poster: Grayson B Dietrich <electrofire-at-juno-dot-com>
> >Hello All,
> >I was wondering,
> >Would a bank of paralleled motor-start caps be suitable as a power
> >correction cap? I I calculated, if memory serves, something like
> 80uF or
> >90uF for my 12kV 60mA NST. When powering my TC, it blows a 10 amp
> fuse no
> >problem... ...and I really wish it wouldn't. Since then I could
> >fuse my variac with the fuse holder built into it.
Get the Internet just the way you want it.
Free software, free e-mail, and free Internet access for a month!
Try Juno Web: http://dl.www.juno-dot-com/dynoget/tagj.