Re: question for ya.........

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Sue Gaeta <sgsparky@xxxxxxxxxxx>

Hi,
How long is the run between the transformer case and the actual ground 
point? How thick is the conductor? It might be a good idea to run a second 
ground conductor to a breaker box where all the other grounds are 
terminated in addition to the earth ground connection. Use large diameter 
wire, 8 AWG or better and keep the run as short as possible.

Most importantly, make sure that the termination connection at both ends 
are clean and solid. Since you got an old transformer there may be some 
corrosion there.

A bad return path is a very dangerous thing, be careful!

Tesla list <tesla@xxxxxxxxxx> wrote:
Original poster: Chip Atkinson

Hi Dave. Where are you drawing the arc between? Perhaps if you are going
between another ground and the top bushing, the resistance between your
transformer ground and the other ground is causing the voltage rise
between the concrete and transformer case.

Chip

On Wed, 1 Dec 2004, david baehr wrote:

> ....is there anyone you know in the area ( or not ) running a single
bushing transformer ??? I
> have it hooked up. case is grounded to a ground rod outside the basement
window, but the trans
> is off the basement floor (concrete) , I put a volt meter between the
case and the floor. When
> energized , there is zero volts , GOOD ,...but when I load it (draw an
arc ) I get voltage ,maybe
> 50-60v between the case and floor at 160v into the transformer. Not sure
whats goin on, it should
> be zero, right ??? Maybe you could post this for me on the mail list ,
please. [IMAGE] I made the
> mistake of asking this question on a power lineman sight, boy, I cought
some SH-T for that[IMAGE],.
> said I was crazy and stupid ,... Just thought if someone else had a
similer setup, they could take
> a reading between the trans case and there floor/surrounding ground and
see whats up. /////Still
> got to wind my homemade limiter(hope it works, Thanks!!!!!!!,dave
>
>