RE: Interference-SSTC

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Fucian-at-aol-dot-com>

In a message dated Tue, 5 Mar 2002 10:17:14 AM Eastern Standard Time,
"Tesla list" <tesla-at-pupman-dot-com> writes:

> Original poster: "Lau, Gary by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Gary.Lau-at-compaq-dot-com>
> 
> If you have the mains neutral tied to the system ground, this is a serious
> No-No.  Since the neutral is a current-carrying conductor, it will develop
> a voltage drop along its length.  Depending upon its length and the amount
> of current through it, there will be a considerable potential developed
> between the neutral (at your TC), and true (3rd wire mains) ground.  
> 
> Connecting the neutral to your TC ground is also a serious safety problem.
> If the neutral wire should be broken or interrupted, your TC "ground" will
> be at "hot" potential!
> 
> Gary Lau
> MA, USA
> 
>  -----Original Message-----
> From:   Tesla list [mailto:tesla-at-pupman-dot-com] 
> Sent:   Monday, March 04, 2002 10:46 PM
> To: tesla-at-pupman-dot-com
> Subject:    Re: Interference-SSTC
> 
> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Fucian-at-aol-dot-com>
> 
> I am still having shocks from the coil.I have checked everything.
> 
> A few points that could be probs are:
> 1-the power in for the primary is from a variac.The terminal where the hot 
> wire is connected to the variac is also connected to the rectifier.The 
> Neutral wire is connceted to the ground of the entire system.The ground wire 
> goes to the metal enclosure.
> 
> There is probably a wiring problem here.I dunno.It SEEMS to work fine.
> 
> 2-ALl the pots and the on switch to the 555 timer is bolted on the metal 
> enclosure.If there is a wiring problem with the power in for the primary, 
> this would explain how the heatsink has a potential.
> 
> Matt

So where do i connect the ground?Do i use the ground wire for both the
metal box and the circuit ground?

MAtt