The transient reactions of alternators

This paper is confined to demonstrating the existence of a characteristic of alternators provisionally named the transient impedance and to investigating the influence of this characteristic on a. The maximum and minimum currents flowing through a 12,000-kw turbo-alternator with and without external reactance coils, under various short circuit conditions. b. The maximum and minimum currents into different classes of faults from a system operating several such units in parallel. c. The maximum cross currents obtainable when paralleling a unit to the system considered in (b), and, d. The torque developed by the maximum currents of (a) and (b).