The paper concerns the analysis and simulation of the behavior of the total ground potential around the grounding systems of the installation-on-pole (PTP and disconnector) and MV/LV substations in order to define and quantify the best possible safety distances in terms of 'acceptable risk' around the grounding systems. The analysis was conducted by adopting the Maxwell method for the analytical simulation of the grounding systems. By the analysis of the databases of the main Italian distribution system operator, each one with over than 300,000 data about the Italian grounding systems, the paper proposes a macroscopic result to define an 'acceptable risk zone' by taking into consideration a weighted average value for the fault current and a medium value for the ground resistivity.

Acceptable risk zone for grounding systems in distribution MV/LV substations / Martirano, L.; Irti, M.; Volo, A.; D'Orazio, L.; Di Felice, G.. - (2021), pp. 1-7. (Intervento presentato al convegno 57th IEEE/IAS Industrial and commercial power systems technical conference. I and CPS 2021 tenutosi a Las Vegas; United States) [10.1109/ICPS51807.2021.9416625].

Acceptable risk zone for grounding systems in distribution MV/LV substations

Martirano L.;Irti M.;Volo A.;
2021

Abstract

The paper concerns the analysis and simulation of the behavior of the total ground potential around the grounding systems of the installation-on-pole (PTP and disconnector) and MV/LV substations in order to define and quantify the best possible safety distances in terms of 'acceptable risk' around the grounding systems. The analysis was conducted by adopting the Maxwell method for the analytical simulation of the grounding systems. By the analysis of the databases of the main Italian distribution system operator, each one with over than 300,000 data about the Italian grounding systems, the paper proposes a macroscopic result to define an 'acceptable risk zone' by taking into consideration a weighted average value for the fault current and a medium value for the ground resistivity.
2021
57th IEEE/IAS Industrial and commercial power systems technical conference. I and CPS 2021
electric risk; grounding; safety
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Acceptable risk zone for grounding systems in distribution MV/LV substations / Martirano, L.; Irti, M.; Volo, A.; D'Orazio, L.; Di Felice, G.. - (2021), pp. 1-7. (Intervento presentato al convegno 57th IEEE/IAS Industrial and commercial power systems technical conference. I and CPS 2021 tenutosi a Las Vegas; United States) [10.1109/ICPS51807.2021.9416625].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1557976
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