UA42400A - Device for arc welding - Google Patents

Abstract

A device for arc welding contains input diodes for connection to the power system, filters-capacitors, keys, an arc welding transformer, capacitors, an output rectifier, a choke, terminals. The primary winding of arc welding transformer by one end is connected with the midpoint of capacitors in-series connected between them and connected from one side through the key to the common point of filter-capacitor and anode of input diode for connection through this diode to the phase of the power system. The secondary winding of arc welding transformer is connected in parallel through the output rectifier and the capacitor and in-series through the choke to the terminals for connection with the arc space. Invention relates to arc welding, in particular, to DC sources of electrical arc.