Interconnections criteria of grounding grids in global grounding systems

Risultato della ricerca: Conference contribution

1 Citazioni (Scopus)


A Global Grounding System is defined as the combination of local grounding systems, obtained by their interconnection, which ensures, thanks to their proximity, that no dangerous touch voltages can arise. The interconnection of grounding systems via the armors of the MV cables, between secondary substations and HV/MV stations is herein analyzed to verify the effects on touch voltages in ground-fault conditions. In particular, two main issues are discussed: 1) the transfer of dangerous voltages to secondary substations, due to ground-faults occurring at the HV/MV station; 2) the reduction in the magnitude of the ground potential rise due to ground-fault conditions at secondary substations, thanks to the connection of their ground grids to the HV/MV station's grounding system.
Lingua originaleEnglish
Titolo della pubblicazione ospiteConference Record - Industrial and Commercial Power Systems Technical Conference
Numero di pagine8
Stato di pubblicazionePublished - 2018

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