Re: [TCML] PFC Question (again)

[Yurtle Turtle <yurtle_t@xxxxxxxxx>]

I'm cuious, if you have a stout enough mains supply, what's the point in doing PFC? I know the power company might be happier, but if one could run a 25 kVA pig at full power, what is there to gain by improving the power factor?

Adam

<snip> 
> 
> Hi Bart,
>  
> I did some power factor tests back when, but I forget all
> the  results.   All
> I remember for sure is that the power factor for PT's
> running resonant  or
> near resonant at 120 bps was excellent.  I remember reading
> an  article
> in TCBA News about some guys that built larger coil running
> with a
> async rotary, and they mentioned that the power factor was
> not very  good.
> They were probably running STR, and they expressed the
> desirability  of
> adding some power factor correction, however they
> didn't attempt to do  this.
> In any case it would be easy to do some PFC tests by trying
> various
> cap values to see if it reduces the apparent power draw for
> STR  systems.  
> I'm surprised coilers haven't done more tests in
> that area.
>  
> Cheers,
> John
> 



      
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