The rapid increase in renewable energy sources is creating additional workloads for both the transmission and distribution networks. Challenges that can be overcome with the help of Smart Grids. By increasing the availability of the power supply and providing a clear overview, digitized secondary substations have an important contribution to make.
Taking the example of SÜC Coburg, a distribution network operator with power supplies of differing characters, this paper examines how secondary substations can be made more intelligent and subsequently tested during commissioning and maintenance activities.