Re: Welder question not coil related

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Jim Lux <jimlux@xxxxxxxxxxxxx>

At 04:23 PM 1/24/2005, you wrote:
> Original poster: JBarrett@xxxxxxxxxxxxxxxx
> Good idea with the ammeter. I'll try that first.
>
> Can you explain the power neutral and welding ground further because this 
> is a really old welder.
>
> I did measure the resistance from the welding ground to the plug. One hot 
> wire on the plug has continuity to the ground clamp while the other side 
> does not have any.

There you have it... It's probably an old device where you'd have a solidly 
grounded neutral and the case/welding ground is connected to the neutral. 
(Like a 240V electric dryer).

If it was originally intended to be a 120V device, then one wire would have 
been hot and the other neutral, and back in pre-"three prong plug" days, it 
wasn't all that uncommon to have a neutral connected chassis.  Even today, 
you'll see this kind of thing with polarized 2 prong plugs, where the odds 
of shorts from line to chassis are unlikely (in lamps, typically).



> Thanks
> Jim
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