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Re: PFC Question



Original poster: "Dmitry (father dest)" <dest@xxxxxxxxxxx>


> Original poster: DRIEBEN@xxxxxxxxxxxxxxx

> "Father dest",

> I never said anything about ADDING another 700 uF.
> 700 uFd was my TOTAL chosen PFC capacitance from
> the start. If the total matched Z is around 950 uFd,
> then I'd still be about 250 uFd short of a unity power
> factor, wouldn't I?

no - you wouldn`t, coz -2.77Ohm (957uF) it`s not total matched Z -
it`s equivalent impedance of your primary cap and ballast ONLY,
WITHOUT any pfc capacitance!
so, as i said before - you`re ADDING another 700 uF to an ALREADY
existing 957uF :-)
to get unity power factor, you have to connect 7.35mH instead of pfc caps
- it`s like a 83amp welder %-)

-----
Neon transformers are doomed in Tesla service! I should know, I've
killed more of 'em than many pople have ever even seen in a life time.
25-03-96 (c) Richard Hull, TCBOR