Re: convert AC welder to DC

I was too sleepy!

The arc plate is between the input of the coil (coil continues on to output. It is so when a high voltage Oscillation of you trying to start
current - it flies back in a sense and generates high voltage that then
keeps the arc going to start high current. The voltage generated can
be high -

so - now to the point - two sharp edges backed away from each other -
guess - now maybe 1/8" don't have arc breakdown of air at all humid
conditions... the arc points breakdown the HV and limit it to that
value. It is a voltage regulator.

Very high voltage ones I have used in life (still alive) - were large
spheres of plated copper that were hand cranked (life and death machine!) until the arc distance is set to xx mm and then that set
the operating voltage. (The capacitors were in oil baths!) The big
black switch was thrown and blue-white arc danced until we turned
it off. With gloves and with hope and faith we would turn up/down
the high voltage.

The LC circuit that generates is typically an L filter looking.

See if you can find some TIG designs as they have them also.

Martin

Martin H. Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
TSRA, Life; NRA LOH & Endowment Member, Golden Eagle, Patriot"s Medal.
NRA Second Amendment Task Force Charter Founder
IHMSA and NRA Metallic Silhouette maker & member.
http://lufkinced.com/


Too_Many_Tools wrote:
On Jun 9, 10:16 pm, "Martin H. Eastburn" <lionsl...@xxxxxxxxxxxxxxxx>
wrote:
No real filtering but many have a high current coil (RF) in series
and an arc-over plate set to help develop an arc. Not required
and can be hard on the bridge by to high a voltage generated.

Martin
Martin H. Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
TSRA, Life; NRA LOH & Endowment Member, Golden Eagle, Patriot"s Medal.
NRA Second Amendment Task Force Charter Founder
IHMSA and NRA Metallic Silhouette maker & member.http://lufkinced.com/

Jimmie D wrote:
I have a huge bridge rectifier I would like to use to convert an AC stick
welder to DC. It is as simple as just connecting the rectifier to the welder
or will I need something else like some sort of filtering.
Jimmie
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No real filtering but many have a high current coil (RF) in series
and an arc-over plate set to help develop an arc. Not required
and can be hard on the bridge by to high a voltage generated.


What's an arc-over plate?

TMT


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