2018 34th International Conference on Lightning Protection (ICLP) 2018
DOI: 10.1109/iclp.2018.8503460
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A Simplified Method for Calculating the Impedance of Vertical Grounding Electrodes Buried in a Horizontally Stratified Multilayer Ground

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Cited by 9 publications
(5 citation statements)
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“…l * = h for i = 1 and l * = L v − h for i = 2) and µ r ≈ µ 0 . The equivalent resistivity can be calculated by the Blattner's formula, given by (Caetano et al, 2018):…”
Section: Lumped Approach For Vertical Electrodes In a Stratified Soilmentioning
confidence: 99%
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“…l * = h for i = 1 and l * = L v − h for i = 2) and µ r ≈ µ 0 . The equivalent resistivity can be calculated by the Blattner's formula, given by (Caetano et al, 2018):…”
Section: Lumped Approach For Vertical Electrodes In a Stratified Soilmentioning
confidence: 99%
“…Based on the Eqs (6) and ( 7) and on the condition (8), the critic length (L crit ) for the case 1-composed by a homogeneous soil of 1,000 Ωm, and for the stratified soils, in cases 2, 3 and 4, are shown in Table 2. For these last cases, the equivalent resistivities ρ eq are calculated based on the Endrenyis's abacus which depends on the first layer thickness h (Caetano et al, 2018). For all cases, the horizontal electrode is represented by N = 30 π-circuits, which results in the elementary lengths (l e ) of 1 m, and that value satisfies condition (8).…”
Section: Transient Voltages On the Grounding Gridsmentioning
confidence: 99%
“…Al dividir (3) y ( 4), obtenemos la impedancia a tierra, denominada de impedancia harmónica, 𝑍 ℎ (𝑠) del electrodo y es dado por [8], [11]:…”
Section: Modelado Del Sistema De Aterramientounclassified
“…En la literatura [8], [11], [14], muchos autores han propuesto diferentes enfoques de parámetros distribuidos para representar electrodos de conexión a tierra. Basado en la Fig.…”
Section: Modelado Del Sistema De Aterramientounclassified
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