Discussion on “three-phase power-factor.” Atlantic city, N. J., June 30, 1908

Comfort A. Adams: I think that at least a part of Mr. Burt's demonstration may be rendered less mathematical to the advantage of one's physical conception of the problem. I refer to that part leading up to equation (34) which is the algebraic statement of the validity of the ordinary method of measuring three-phase power by means of two wattmeters.