Discussion on “measurements of voltage and current over a long artificial power-transmission line at 25 and 60 cycles per second” (Kennelly and Lieberknecht), Boston, Mass., June 25, 1912. (see proceedings for June, 1912)

Charles P. Steinmetz: I have practically nothing to add, because the paper is so complete and the experimental investigations given check so closely with what we should expect theoretically, that the paper can be considered as one of those contributions which prove that our electrical engineering theory really is correct, that where, in practise, lines whether artificial lines, lumpy lines, or distributed lines, are traversed by current, we find this current to be the same character as calculated by theory. A number of parabolic curves, as in Fig. 15, are given. Such curves have been advocated, based on theoretical assumption, but here you see they are reproduced from actual experience in a transmission line, showing that, at least in electrical engineering, theory and practise are identical.