WELDING DEVICE Russian patent published in 1995 - IPC

FIELD: welding. SUBSTANCE: welding device has a welding transformer, antiparallel thyristors in the circuit of its primary winding and the thyristor control circuit. The cross-section of the magnetic circuit and the number of turns of the primary winding of the welding transformer are designed for the part of the mains voltage equal to the geometric difference of the voltage vectors- the mains voltage minus half-difference of the mains voltage and reduced to the number of turns of the primary winding of the voltage on the arc space. An extra capacitor ensuring the pulse operation of the idle stroke is switched on parallel to the secondary winding of the welding transformer. EFFECT: facilitated manufacture. 4 dwg