MIG welding with DC power supplies
 

Ignoramus2596 wrote:

I have a few power supplies PP-1104C that are rated 100 A at 14 VDC
and 50 A at 24 VDC. Not quite sure yet, but I think that they are CC
power supplies. I would like to know if I could rig up one or even two
in parallel or in series (100A at 28V) with a mig gun like Ready
Welder and weld with that.

Some pictures of them are at

http://web.govliquidation.com/auctio...ctionId=767646

I figure that 200A at 14 VDC can weld just about anything.

Any thoughts?

i

YOu will need a higher voltage than 14 volts. 25 volts or more.

John

MIG welding with DC power supplies
 

You probably need some inductance in series as well, to stabilise the arc.
My old MIG had a straight, open core, with (afair) a single layer of
seriously thick wire on it.

Ignoramus2596 wrote:
On Sat, 25 Feb 2006 21:23:43 -0500, John wrote:
Ignoramus2596 wrote:
I have a few power supplies PP-1104C that are rated 100 A at 14 VDC
and 50 A at 24 VDC. Not quite sure yet, but I think that they are CC
power supplies. I would like to know if I could rig up one or even two
in parallel or in series (100A at 28V) with a mig gun like Ready
Welder and weld with that.

Some pictures of them are at

http://web.govliquidation.com/auctio...ctionId=767646

I figure that 200A at 14 VDC can weld just about anything.

Any thoughts?

i
YOu will need a higher voltage than 14 volts. 25 volts or more.

OK... If I put two of them in series, I could get 100 amps at 28
volts. Would that be good enough for welding most stuff. I hope that I
am making sense, I am a little drunk at the moment (wife bday)

i

MIG welding with DC power supplies
 

Ignoramus2596 wrote:

I have a few power supplies PP-1104C that are rated 100 A at 14 VDC
and 50 A at 24 VDC.

OK... If I put two of them in series, I could get 100 amps at 28
volts. Would that be good enough for welding most stuff. I hope that I
am making sense, I am a little drunk at the moment (wife bday)

If you put the two in series you will have the combined voltages but the
current capacity of the smaller one.
--
Fred R
"It doesn't really take all kinds; there just *are* all kinds".
Drop TROU to email.

MIG welding with DC power supplies
 

Just a word of warning - remember the supplies might not work stacked.
Most will. But make sure there is not a problem early on.

I don't see much voltage isolation issue - being so low, but there might
be internal circuits that don't like it.

Martin

Martin Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
NRA LOH & Endowment Member
NRA Second Amendment Task Force Charter Founder



Ignoramus20905 wrote:
On Sun, 26 Feb 2006 16:02:13 GMT, Fred R "spam wrote:

Ignoramus2596 wrote:


I have a few power supplies PP-1104C that are rated 100 A at 14 VDC
and 50 A at 24 VDC.

OK... If I put two of them in series, I could get 100 amps at 28
volts. Would that be good enough for welding most stuff. I hope that I
am making sense, I am a little drunk at the moment (wife bday)

If you put the two in series you will have the combined voltages but the
current capacity of the smaller one.


Sure. They can do 100 amps at 14v. So, two of them could produce 100
amps at 28 volts, if put in series. That, I suspect, is not so bad for
MIG welding.

Their current meters show a red area above 100 amps, so, I think,
they could possibly go higher at reduced duty cycle.

i


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MIG welding with DC power supplies
 

"Ignoramus2596" wrote in message
...
On Sat, 25 Feb 2006 21:23:43 -0500, John wrote:
Ignoramus2596 wrote:

I have a few power supplies PP-1104C that are rated 100 A at 14 VDC
and 50 A at 24 VDC. Not quite sure yet, but I think that they are CC
power supplies. I would like to know if I could rig up one or even two
in parallel or in series (100A at 28V) with a mig gun like Ready
Welder and weld with that.

Some pictures of them are at

http://web.govliquidation.com/auctio...ctionId=767646

I figure that 200A at 14 VDC can weld just about anything.

Any thoughts?

i

YOu will need a higher voltage than 14 volts. 25 volts or more.

OK... If I put two of them in series, I could get 100 amps at 28
volts. Would that be good enough for welding most stuff. I hope that I
am making sense, I am a little drunk at the moment (wife bday)

Now is a great time to go experiment!