Abstract :
The South African Electricity Supply Commission has developed a data-management system for power-system studies. By using a single command language, an engineer can obtain, via the data-base management system, the data describing a particular power system network. The data-base facilities enable the engineer to store and maintain his power-system data, either interactively or via a batch-processing system. This package has been used for a number of years, and has proved to be a valuable tool for both planning and the operation of power-system networks
