The design of low-voltage welding power distribution

This paper is an effort to state clearly and to present a solution for the problems encountered in the design of one of the vital constituents of a-c resistance-welder power supply — the low-voltage feeder. The scope of the paper is much wider, however, since the determination of design loads from the probability standpoint for the purpose of determining maximum allowable impedance and expected temperature rise is a problem encountered in the design of all equipment common to a number of resistance-welding installations.