Equations for determining current distribution among the conductors of busses comprised of double-channel conductors

A RECENT paper1 advances equations enabling calculation of the inductance and short-circuit forces of busses comprised of double-channel conductors, as shown in Fig. 1 of that paper. These quantities are the essential parameters required for the rational design of this currently much-used bus. In an advertisement2 it is stated that this type of construction is used in ¿11 out of the 16 largest turbine-generator¿ installations. The correctness and the usefulness of these equations in actual design are manifested by the valuable complementary discussion1 of this recent paper given by O. R. Schurig, who compared values of reactance determined experimentally on a typical 3-phase bus comprised of 6-inch aluminum channels with values calculated from the equations of reference 1 and found good agreement among corresponding experimentally and analytically determined values.