| 摘要 |
PROBLEM TO BE SOLVED: To provide an improved electric arc welding system severally having plural, individual power sources. SOLUTION: This electric arc welding system is provided with plural power sources, which are individually connected with an each welding station by input of the direct electric current passing through the electric current for the arc welding crossing an electrode and workpiece. The system consists of the variable inverter with the output direct electric current determined by the signals for the power input of each power source, a circuit connecting to the output direct electric current in parallel to the input of the welding station, a feedback circuit with the sensor creating the command signals showing a arc electric current, a circuit for the master electric current signals based on the detected electric signals and the order signals, and a circuit for input of the multi-electric power sources from the master electric current signals. Thereby, the electric power source is can equally share the direct electric current for the direct electric current input of the welding station.
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