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Transactions: WSEAS TRANSACTIONS ON POWER SYSTEMS
Transactions ID Number: 32-635
Full Name: Yuval Beck
Position: Doctor (Researcher)
Age: ON
Sex: Male
Address: 52 golumb st. Holon
Country: ISRAEL
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E-mail address: beck@hit.ac.il
Other E-mails: ylbeck@gmail.com, beck@post.tau.ac.il
Title of the Paper: the transient current distributions in a vertical electrode and the ground
Authors as they appear in the Paper: Yuval Beck , Arie Braunstein
Email addresses of all the authors: beck@hit.ac.il, aribraun@eng.tau.ac.il
Number of paper pages: 12
Abstract: This paper presents a model for calculating the transient space-time current distributions in vertical electrodes and to the surrounding ground. The model is based on the electromagnetic field theory for calculations of the step function wave-pair response. The method takes into account the parameters of the electrode, such as: the radius and the length of the electrode. Furthermore, the conductivity, permittivity and the propagation velocity of the currents in the ground are also considered. In the analysis, the electrode is divided into finite sections. Thereafter, the "Compensating Currents", ground leakage currents and the current in the electrode in each section are calculated at all times. The model is applied by a MATLAB code for the calculations of the above-mentioned currents' distributions. The results show that for soils of high conductivity values, relative short electrodes are needed for dissipating transient currents such as lightning currents. Furth!
ermore, soil conductivity is a more sensitive parameter compared to the radius of the electrode and the permittivity of the ground.
Keywords: Current distribution, Grounding electrodes Lightning, Transient response, vertical electrodes
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