The task of this thesis was to study and describe the issues of grounding medium voltage networks, taking into account domestic and foreign experiences. The first chapter of the thesis is introductory. The second chapter provides technical recommendations for grounding the neutral point, describing the basic technical conditions and determining single-pole schemes for selecting a system for grounding the neutral point. The third chapter provides an analysis of the parameters for selecting the grounding method, taking into account voltage stresses, values of ground currents and soil resistance, and the quality of electricity. Thermal stresses on equipment in the event of a single-pole fault are also taken into account. The next chapter describes the experiences of European Union countries with the issue of grounding MV networks. The experiences of France and Italy are taken into account. The fifth chapter gives us an insight into the variants of grounding MV networks. The method of grounding the neutral point is influenced by numerous factors. One of the basic ones is the magnitude of the capacitive current. The large number of methods used for grounding the neutral point in the world is the reason for the compromise between two main and mutually contradictory requirements, namely reducing the amplitude of the ground fault current, which can cause difficulties in detecting faults, and allowing larger amplitudes of ground fault currents, which makes it easier to detect a ground fault, but can cause dangerous touch voltages, and in this case the number of outages is also increased. Chapter 6 describes the criteria for grounding the neutral point of medium-voltage networks, where we concluded that the basic criterion when switching the network to operation with a grounded neutral point is the level of the capacitive ground fault current of the galvanically coupled network (IC).