A modified pi-shaped circuit-based model of grounding electrodes

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dc.contributor.authorYutthagowith, P.
dc.date.accessioned2026-08-06T10:14:46Z
dc.date.available2026-08-06T10:14:46Z
dc.date.issued2016-12-19
dc.description.abstractThis paper proposes a modified pi-shaped circuitbased model of grounding electrodes. The validity length and soil resistivity of the proposed model are from 2 m to 40 m and from 50 m to 2000 m, respectively. The equivalent circuits in the form of pi configuration are modeled by lumped parameters composing of inductance, resistances, and capacitances. The voltage responses to the standard lightning currents of grounding electrodes either calculated by an electromagnetic model or from experiments are matched with those of the proposed model. A curve fitting technique is employed to extract parameters of the equivalent circuit. The satisfactory agreements have been observed. The simple soil ionization model can readily be adapted in the proposed model. The proposed model is very useful in implementation with a circuit simulator such as EMTP, Pspice, and so on. The proposed circuit model can be adapted for being the models for development and design of the grounding system for lightning protection system in transmission and distribution systems in an effective way.
dc.identifier.citation2016 33rd International Conference on Lightning Protection Iclp 2016, 2016
dc.identifier.doi10.1109/ICLP.2016.7791379
dc.identifier.other2-s2.0-85011024012
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/7133
dc.source2016 33rd International Conference on Lightning Protection Iclp 2016
dc.subjectElectrical transient
dc.subjectEquivalent circuit
dc.subjectGrounding electrodes
dc.subjectLightning current
dc.subjectModified pi model
dc.subjectSoil ionization
dc.titleA modified pi-shaped circuit-based model of grounding electrodes
dc.typeConference Paper

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