Re: [TCML] Emi filter connection

[Jeff Miller <jeffmill2@xxxxxxxxxxx>]

I do not want to connect the rfg to it. I've got it now configed like #3 
BUT it is located at the coil not the controller with the case of it a 
few inches away from any rfg. Will that create a problem, me running 
3wires L N and G to the tesla / filter rather than locating it at the 
controller and only running 2 wires to the tesla


On Thu, Mar 29, 2012 at 8:42 PM, Gary Lau wrote:

> I'm not sure I understand the configuration that you're suggesting. 
> If you
> have the mains-ground wire available at the EMI filter, you need to 
> wire it
> per Fig 3.  If you felt the need to connect the RF ground to something 
> on
> the filter, you could wire it per Fig 2 with the filter connections
> reversed, although I'm not sure that the RF ground connection is
> accomplishing anything useful there.
>
> Regards, Gary Lau
> MA, USA
>
> On Wed, Mar 28, 2012 at 1:30 PM, Jeff Miller <jeffmill2@xxxxxxxxxxx> 
> wrote:
>
> > You are correct. I see that now
> > I would like to leave the filter at the coil . I can remove the mains
> > ground from the filter case then connect the rf ground to the filter 
> > case.
> > I see that it is not as good as fig 3 but would that suffice ?
> >
> > Sent from my iPad
> >
> > On Mar 28, 2012, at 11:12 AM, Gary Lau <glau1024@xxxxxxxxx> wrote:
> >
> > > Hi Jeff,
> > >
> > > I put up a web page on my site about how to and how not to connect 
> > > an EMI
> > > filter:   http://www.laushaus.com/tesla/emifilter.htm
> > >
> > > > From your description, it sounds like you have your filter hooked 
> > > > up as
> > in
> > > Figure 2 on my web page, except that you connect the mains ground to 
> > > the
> > > EMI filter case.  This is bad, because C2 and C3 in the filter 
> > > provide a
> > > low impedance path for common mode RF on the NST primary to get to 
> > > the
> > > mains ground connected to the case.  What you want is Figure 3, so 
> > > that
> > you
> > > have an L-C low pass filter between the NST and everything that goes 
> > > back
> > > to the wall.
> > >
> > > Regards, Gary Lau
> > > MA, USA
> > >
> > > On Tue, Mar 27, 2012 at 9:54 PM, Jeff Miller <jeffmill2@xxxxxxxxxxx>
> > wrote:
> > > > Hello
> > > > I am second guessing my emi filter connection.
> > > > my filter is located at the coil not at the variac. From my variac 
> > > > to my
> > > > coil I run 3 wires line, neu and gnd to the filter . the ground is
> > > > connected to the case of my filter and NOT to rf gnd which starts 
> > > > from
> > the
> > > > case of the nts on out. it is a 15 amp round style filter I bought 
> > > > off
> > of
> > > > eBay.  Is this ok? I am not running the filter in reverse.
> > > > Sent from my iPad_______________________________________________
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