Computer Aided Protection (Overcurrent) Coordination Studies

A well designed and reliable power system requires an efficient and reliable protection scheme with protection coordination at its core. This paper discusses computer aided protection coordination in brief comprising of its significance, procedures and vital components. Basically, this paper focuses on the usage of computer based programs to conduct the analyses and simulations required in coordination studies. The steps in a computer aided protection coordination analysis are detailed in this paper. Furthermore, the components related in the coordination studies are also discussed for a better understanding of the studies and its relationship to manual calculations and analyses.