ARC WELDING SYSTEM WITH VARIABLE-FREQUENCY AUXILIARY POWER OUTPUT

An arc welding system (10) includes a welding power supply having a switching type power converter. A welding electrode (20) is connected to the switching type power converter to receive electrical energy there from and produce an electric arc (18). A variable-frequency auxiliary power supply suppli...

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Bibliographische Detailangaben
1. Verfasser:	Enyedy, Edward A
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	An arc welding system (10) includes a welding power supply having a switching type power converter. A welding electrode (20) is connected to the switching type power converter to receive electrical energy there from and produce an electric arc (18). A variable-frequency auxiliary power supply supplies electrical energy to an auxiliary load through an auxiliary power output of the arc welding system (10). An engine-generator (14) is connected to the welding power supply (12, 16) and the variable-frequency auxiliary power supply, to supply electrical energy to the welding power supply (16) to produce the arc (18), and to supply further electrical energy to the variable-frequency auxiliary power supply. A controller (32) is operatively connected to the variable-frequency auxiliary power supply and is configured to control an output voltage frequency of the variable-frequency auxiliary power supply according to an auxiliary power supply frequency setting. The output voltage frequency of the variable-frequency auxiliary power supply is independent from engine speed of the engine-generator (12).