Excuse me: how about the power of 315 DC arc welding machine?
315 welding machine general election 100A--250A, work voltage is 38V, three welding machine work at the same time the maximum power: 250*38*3=31 kW, select 35 kW generator enough.Welding machine is a kind of electric power supply which provides certain characteristic for welding. The common welding machine has three kinds of direct current, alternating current and pulse from welding current, but AC and DC inverter welding machine are often used. The main component of the electric welding machine is a step-down transformer. The two ends of the secondary coil are welded workpieces and welding electrodes. When the work is done, the arc is ignited, and the electrode is fused into the gap of the workpiece at the high temperature of the arc.
Usually around 12~13 / taiwan.. The 3 is estimated to be 40KAV
It depends on how much current work you use, the 315 welding machine in general election 100A--250A, work voltage of 38V, three welders work at the same time the maximum power: 250*38*3=31 kW, select 35 kilowatts of generators enough.