Re: pfc

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

Original poster: "Ed Phillips by way of Terry Fritz <twftesla-at-qwest-dot-net>" <evp-at-pacbell-dot-net>

Tesla list wrote:
> 
> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Mddeming-at-aol-dot-com>
> 
> In a message dated 11/21/01 8:36:00 PM Eastern Standard Time,
tesla-at-pupman-dot-com
> writes:
> 
> >
> > Not at all if your NST has it built in, as some do (for instance,
> > Franceformer 15030 and 15060 don't, but 15030P and 15060P do).  I often
> > wonder if people aren't throwing PFC's onto NST's that already have them
> > internal.
> >
> >     - Bill Vanyo
> 
> Hi,
> I believe that one way to be sure is to use a scope to check the phase angle
> between input current and input voltage. Add capacitance as needed until
angle
> is minimized.
> If no scope is available, use an ammeter on the input line. Run voltage up to
> just before the gap fires. Then add capacitance a little at a time until the
> current is minimized These methods should give the right amount,
regardless of
> what's inside the "black boxes".
> Matt D.

	Seems to me a much better procedure would be to adjust the capacitance
to minimize line current when the coil is running at "normal" input. 
Who cares about the no-load current?

Ed