自己負帰還・自己飽和形 3 相整流器式直流アーク溶接機の電気的働作の論考

概要

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The welders defined in the heading are developed in Japan in recent years. The electrical working manners are explained and discussed on static as well as dynamic characteristic in the limit of the pages allowed for the paper. It is indicated that the self demagnetizing AT generating in the gate windings due to the current passing through the impedance Z_p (Fig. 1,7) is nearly proportional to out put d.c. current I_D. Equ. (4), (6). The basic principle of the demagnetizing action of the various type of circuit Z_p shown in Fig. 3 is quite similar in each other though the dynamic characteristics may differe in some types. See equ. (10). Diagram of e_M, e_N, potential of positive and negative d.c. terminal M, N and gate voltage are shown in Fig. 12∿23 for several conditions of L_D (d.c. side inductance), saturation curve (Fig. 11 (b), (c) etc.). The out put characteristics E_D-I_D are considered in Fig. 24∿26,and is suggested that L_D may effect to the curve. It is indicated that the working manners of static as well as dynamic characteristics of the circuit in Fig. 7 including the control circuit are quite similar to those of the separately excited differential compound generator which has the diverter circuit as shown in Fig. 10,except the point of the transient phenomena of the first half cycle period.
1966-03-25