Re: Calculation of PFC Capacitors using LTR Capacitor

["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>"
<FutureT-at-aol-dot-com>
> 
> In a message dated 8/3/02 8:48:35 PM Eastern Daylight Time, tesla-at-pupman-dot-com
> writes:
> 
> >
> >     Does anyone have any before/after measurements of the line current
> > drawn by an operating TC which show a significant difference?
> >
> >
> 
> Ed,
> 
> I used a common clamp on ammeter, and it showed a substantial
> difference in the input current to an NST powered Tesla coil, depending
> on whether the PFC was used or not.  I don't know if the PFC could
> have improved the waveform and fooled the meter.  I seem to remember
> 6 amps without PFC, 4 amps with PFC, something like that.  I have
> the figures written down, so I can look them up.  I thought Terry
> and others did some comparison measurements also?
> 
> Cheers,
> John

	Fine, and others have reported significant reductions too.  By the way,
that clamp on ammeter probably is relatively waveform independent and
does read the right current, at least if it is of the iron vane type and
not a rectifier type. 

Ed