Institute activities: Revisions made to “simplified calculation of fault currents”

A report on a simplified procedure for the calculation of short-circuit currents, published as “Simplified Calculation of Fault Currents” (EE, Oct. ´42, pp. 509–11; and AIEE Trans., ´42, pp. 1133–35), was sponsored and prepared by the AIEE committee on protective devices as one of its projects for 1940–42. The method described had been given trial use for over a year and was found to be generally satisfactory for the purpose intended.