Substations are important parts of electric power systems, and they require well-designed
grounding systems. A proper grounding system guarantees the safety of the personnel …

The present paper gives an overview of modelling methods of standard grounding systems
under surge conditions, using the non-uniform transmission line approach. The model …

When a high voltage direct current (HVDC) system works at single line operation mode, a
big current will flow into the earth through the grounding system directly. Then the large …

This investigation is devoted to analyse the impedance behaviour of long horizontal
grounding electrodes as function of frequency for several soil resistivity values. The real and …

Lightning is known to be a major cause of outage in power systems. It may result in damage
to equipment, high repair costs, and loss of revenue to utility companies. The most …

This paper deals with the measurement of earthing impedance of systems subjected to low
magnitude variable-frequency currents. Measurement fundamentals are briefly discussed …

W pracy przeanalizowano właściwości statyczne i udarowe uziomu słupa
elektroenergetycznego przy różnych parametrach gruntu, z uwzględnieniem charakterystyk …