“…to calculate the dynamic effects of the reconnection behaviour of feeders on frequency control of rotating machines [13], to assess the challenge of maintaining a predefined power exchange at the coupling point between different grid operators [14] or to assess the loading of grid equipment with respect to thermal limits [15,16]. Further issues on the timescale investigated in this contribution include long-term voltage stability [17][18][19] and the optimisation of power system restoration considering the cranking power demand of power stations [20,21]. Detailed physical modelling of the loads within a power system as well as the various possible situations with respect to weather, time of day etc.…”