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Damir Cavka

Cette personne a quitté l’EPFL

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Publications associées (5)

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A Comparison of Frequency-Dependent Soil Models: Application to the Analysis of Grounding Systems

Farhad Rachidi-Haeri, Nicolas Mora Parra, Damir Cavka

We present a review and comparison of different models representing the frequency dependence of the soil electrical parameters (conductivity and permittivity). These models are expressed in terms of curve-fit expressions for the soil conductivity and relat ...

Ieee-Inst Electrical Electronics Engineers Inc2014

On the Concept of Grounding Impedance of Multipoint Grounding Systems

Farhad Rachidi-Haeri, Damir Cavka

An N-port equivalent circuit approach is adopted to model a multipoint grounding system, N being the number of injection points. A methodology is proposed to determine the parameters of the N-port equivalent circuit from either numerical simulations or exp ...

2014

Generalized Telegrapher's Equations for Buried Curved Wires

Farhad Rachidi-Haeri, Damir Cavka

The paper deals with the calculation of transient currents and voltages along curved wire structures buried in a lossy ground using the generalized Telegrapher's equations. The influence of a lossy half space is taken into account by the simplified reflect ...

IEEE2018

On the Use of Magnetic Current Loop Source Model in Lightning Electromagnetics

Farhad Rachidi-Haeri, Damir Cavka

2017

On the Application of Frequency Dependent Soil Models to the Transient Analysis of Grounding Electrodes

Farhad Rachidi-Haeri, Nicolas Mora Parra, Damir Cavka

2013