Welding machine “current stealing” phenomenon? ?
Thread Content
During production, it was found that when several welding machines are arranged in a row with their ground wires connected together (either on the same platform or to the workpiece), current competition occurs; for example, Zhang San can weld while Li Si cannot. Dear seniors, what is the principle behind this? How can this problem be solved? ? ?
This problem will not occur if the negative terminal of the welding machine is connected directly to the workpiece!