Why does the welder quit arching after 30 minutes?
It will weld about 30 minutes then the arc will barely spark let it cool off an hour then it welds 30 minutes then the arc will barely spark
Electrical Supplies - Miller - Trailblazer 301g Cc/cv, Ac/dc Welder. 10,000 Watt Generator...
Answers & Comments
Motors and generators are the same in this sense. The winding of a field coil is defective. The winding heats up with use and the winding expands causing it to short out and quits doing it's intended purpose. An hour of cooling allows the winding to contract thus clearing the short circuit. A good motor rewinder person can find the defective winding with an oven or heat gun and can rewind it for a fraction of a new welder generator.