Weldanator

4130 Views 6 Replies 5 Participants Last post by Mechanos, Jun 20, 2008

John H

Discussion Starter · Jun 20, 2008 (Edited)

So i decide to build on onboard welder for my rig. Ended up using a GM CS-130 alternator. Got a 140 amp stator for it from alternatorparts.com. Removed the internal diode bridge. Used a 150 amp 3-phase diode bridge that is used in plasma cutters and inverter welders. Mounted it with a big heat sink inside a project box. Also am using a rheostat to fine tune the field to the alternator. Since the output is isolated I can tig weld on my own rig with it.
This is a second alternator I have mounted. This will not work with standard charging system

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guidolyons

· #2 · Jun 20, 2008

cool :smokin:

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widmayer123

· #3 · Jun 20, 2008

Very Cool!!!

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supazuk94

· #4 · Jun 20, 2008

very cool!

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Mechanos

· #5 · Jun 20, 2008 (Edited)

Looks clean. Definately nothing new here, but a nice clean job. While you were in the alternator, you should have reconfigured the stator from Y to Δ .

Where did you source the diodes and what did they set you back?

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John H

Discussion Starter · #6 · Jun 20, 2008

I used a three phase rectifier module. All self contained. Used in Hypertherm plasma cutters. Think it was about $100

And the CS-130 has a delta winding. The picture is generic.

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Mechanos

· #7 · Jun 20, 2008

John H said:
I used a three phase rectifier module. All self contained. Used in Hypertherm plasma cutters. Think it was about $100

And the CS-130 has a delta winding. The picture is generic.

Cool.....

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