UA39621A - Device for arc welding - Google Patents

Abstract

A device for arc welding contains an input rectifier with inputs for connection to the power system, keys, an arc welding transformer, an output rectifier, a condenser, a choke, terminals. The primary winding of arc welding transformer by one side is connected with the common point of keys in-series connected between them and connected in parallel to the output of input rectifier, and other side of the primary winding of arc welding transformer is connected with the terminal for connection to the neutral conductor of the power system, in this case, the secondary winding of arc welding transformer is connected in parallel through the output rectifier and the condenser and in-series through the choke to the terminals for connection with the arc space.