Intelligent system for MV overhead feeders load control

Brazilian electric utilities have experienced in recent years a growing increase in electricity consumption that has required large investments to increase energy supply and maintain the quality standards set by the regulator. However, Celesc has had a major impediment to expanding the capacity of existing substations. This fact is due to lack of space at substations' outlets for new feeders' construction due to existing feeders' congestion that in many situations leads to more than one feeder in the same post. In order to minimize this problem Celesc had invested in an R&D project that has aimed to redefine substations outputs feeders ampacity's limits considering historical data on regional environmental conditions and what are the minimum quantities to be measured in substation feeders to operate with dynamic loading as well as an associated software tool. This paper presents the results of studies that formed the basis of the developments described above.