WELDING SYNCHRONOUS GENERATOR Russian patent published in 1999 - IPC

FIELD: welding production, possibly welding parts in field conditions by piece electrodes. SUBSTANCE: apparatus having main and additional three-phase windings of stator shifted one relative to another by 90 electric degrees; main and additional windings for exciting rotor; three-phase bridge-type rectifier, single-phase feedback rectifier also includes choke and power rectifier. Main winding of stator is joined as "triangle", one output of main winding is connected in series with choke and power rectifier. Additional three-phase winding of stator is connected as "star". It is connected through bridge rectifier with main exciting winding of rotor (whose additional winding is connected with above mentioned main winding through single-phase feed back rectifier and choke) with positive outputs of power rectifier. EFFECT: simplification, enhanced reliability factor of welding generator. 1 dwg