Wire Grounding Electrode near Vertical Cylindrical Non-homogeneity (CROSBI ID 693458)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Jovanovic, Dragana B. ; Jovanovic, Dejan B. ; Zivaljevic, Dragana U. ; Cvetkovic, Nenad N. ; Hederic, Zeljko
engleski
Wire Grounding Electrode near Vertical Cylindrical Non-homogeneity
Flowing impulse lightning currents in the grounding grids of substations may cause an increase of the possible potentials and step voltages to few tens of kV independently from the grounding resistance. This paper suggests an approach for determination of the permissible step voltages’ values in grounding installations under the effect of impulse lightning currents with a certain shape. The allowable body current was determined as an energy limit of 10J was accepted as the lowest determined value by researchers in the literature. Comparison of the obtained maximum step voltages and the values of defined permitted step voltages has been done by using a previously developed by the authors model for simulation the processes in grounding grids when the lightning currents flow in them.
electrical safety ; grounding installation ; lightning current ; step voltage
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Podaci o prilogu
186-189.
2020.
objavljeno
10.1109/siela49118.2020.9167136
Podaci o matičnoj publikaciji
2020 21st International Symposium on Electrical Apparatus & Technologies (SIELA)
Institute of Electrical and Electronics Engineers (IEEE)
978-1-7281-4346-0
Podaci o skupu
21st International Symposium on Electrical Apparatus & Technologies (SIELA)
predavanje
03.06.2020-06.06.2020
Burgas, Bugarska