TRANSFORMER AND POWER SUPPLY FOR A PULSE-ARC WELDING STATION

摘要

A transformer (12) and power supply (10) forpowering one or more welding stations (24). A spacing layered(12E) is inserted between the primary windings (12A, 12B, 12C)and the secondary windings (12F, 12G, 12H) so as to control thedegree of coupling between these windings. In addition,impedances (11, 14, 17) may be used individually or collectively,alone or with the transformer (12), to achieve a desired outputvoltage-output current characteristic for the power supply (10).The output voltage at the connections (20, 21) of the power supply(10) drops off at a rate selected to minimize heating in the weldingstations (24) while maintaining the quality of the weld beingperformed.