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Impact of DG Placement on Radial and Mesh Topology Against Short Circuit Current

Transmission lines that are too far away cause greater power losses and cannot meet consumer power needs. The types of topologies also affect the number of power losses. The alternative that electric power producers use to meet the load is to attach distributed generation (DG) to the electric power system. However, the addition of DG to an electric power system can increase the level of short circuit current. Several factors that affect the increase in the level of short circuit current are the amount of DG, DG power capacity, DG placement, and the topology of the electric power system. This paper aims to analyze the effect of placing DG on several different topologies in the electric power system. The topologies used are radial and mesh topology. These topologies have 30 buses. In each topology, several scenarios are made. The first scenario is the topological condition before DG is installed. The second scenario is the topological condition after DG is installed. The placement, number, and capacity of DG are variables made in each topology. Each topology used produces a different level of short circuit current. Based on the comparison of the short circuit current values, mesh topology produces a short circuit current value that is higher than the radial topology.