UA42570A - Device for arc welding - Google Patents

Abstract

A device for arc welding contains input diodes for connection to the power system, keys, an arc welding transformer, an output rectifier, a choke, terminals. The primary winding of arc welding transformer by one end is connected to the common point of keys in-series connected between them and connected in parallel to the anodes of input diodes, for connection of the cathodes of these diodes in accordance with the phases of the power system. Another end of the primary winding of arc welding transformer has an output for connection to the neutral conductor of the power system. The secondary winding of arc welding transformer is connected in parallel through output rectifier and in-series through the choke to the terminals for connection with the arc space.