Control of transients in welding generators

The fundamentals of d-c arc welding generators are reviewed in this paper, and the effect of transient currents and voltages upon performance is described. It is then shown how the transients may be controlled by internal arrangements which reduce the induced voltages in the stator circuit and at the same time increase the series reactance of both the field and armature circuits. A new welding generator designed with these features is next described; it is a modification of the split pole type of self-excited machine. Also, comments on the technique of testing welding generators are presented.