Accurate computation of 2-machine stability

TWO-MACHINE stability problems can be solved more accurately by utilizing composite general circuit constants.¹ These permit the inclusion of losses, intermediate loads, transformer taps, and so forth, without an excessive amount of labor. The only restriction on their use is that loads must be represented as constant impedances; but this is a conventional assumption for stability studies. In addition this method makes it possible to include the inertia of both machines without approximation.