Re: NST Study results

["Al Hassick" <uncadoc-at-juno-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

Very nice Terry!  Thank you for compiling all this data!  I shall now use
it to apply PFC to my coil.  Would it hold true then that two 15kv -at-
60ma. neons would need roughly 340 to 400 mf of PFC (meaning, using your
chart data for current and pfc for one neon, would it hold true that the
pfc needed would be double for two neons?).  Al.   

On Sat, 09 Sep 2000 22:11:59 -0600 "Tesla list" <tesla-at-pupman-dot-com>
writes:
> Original poster: Terry Fritz <twftesla-at-uswest-dot-net>
> 
> Hi All,
> 
> I have posted the results (so far) of my NST study at:
> 
> http://216.160.168.190/TeslaCoils/Misc/NSTStudy/NSTStudy.htm
> 
> The main site is 'now' at:
> http://216.160.168.190/TeslaCoils/TeslaCoils.htm
> Note that this site's address occasionally changes (like it did 
> Thursday ;-))
> 
> It appears that there is a fair amount of internal variation from
> manufacture to manufacturer of NSTs but this does not affect the 
> NST's
> functioning in the charging circuit.  Thus, a 9/30 from maker "A" 
> acts like
> one from maker "B".
> 
> The power factors seem remarkably low.  In the case of the 
> 12kV/120mA
> transformer, a PFC cap reduces the input current from about 18 amps 
> to 8!
> I guess "i" expected that...
> 
> Calculation the BPS from this data was very accurate,  You can see 
> all the
> little sweet spots and such as the capacitance is varied.
> 
> It calculated the optimal PFC cap sizes too.  However, if you use 
> resistive
> protection circuits, and as a general rule, use 'less' rather than 
> more
> capacitance to insure a lagging power factor.
> 
> Hope this is of use.  I have yet to ponder all the wild applications 
> of
> such data...
> 
> Cheers,
> 
> 	Terry
> 	terrellf-at-uswest-dot-net
> 
> 
> 
>