Pillar star-shaped grounding system

• Autorzy: Rančić P. D. , Cvetković N. N.

Warianty tytułu

PL

Kolumnowy system uziemiający

• Języki publikacji: EN

Abstrakty

EN

The pillar grounding system formed of vertical electrodes inside the cylindrical concrete foundation and a star-shaped wire electrode system, are analyzed in the paper. For the sake of modeling the influence of a concrete cylinder, which surrounds a vertical ground electrode, a recently proposed procedure is applied. The procedure reduces this problem to analysis of a grounding system in the homogeneous ground. Solving the system of integral equations, unknown currents and, afterwards, the grounding system’s resistance are determined.

PL

W pracy przeanalizowano kolumnowy system uziemiający złożony z pionowych elektrod i elektrod drutowych o kształcie gwiazdy. Zastosowana procedura pozwala na analizę systemu otoczonego betonem tak jak systemu umieszczonego w jednolitym gruncie. Z zastosowaniem metody całkowej określono rezystancję uziomu.

Słowa kluczowe

EN

grounding system; resistance; homogeneous ground; Point-Matching Method

PL

system uziomów; rezystancja; grunt jednorodny; Point-Matching Method

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2010
• Tom: Nr 5
• Strony: 100--104
• Opis fizyczny: Bibliogr. 15 poz., schem., wykr.

Twórcy

autor

Rančić P. D.

autor

Cvetković N. N.

• Faculty of Electronic Engineering, University of Niš, A. Medvedeva 14, 18000 Niš, Serbia,

Bibliografia

• [1] Technical Recommendation (TR) of Electric Power Industry of Serbia: Grounding of the Power Network Pillars, TR No.9, Belgrade 2000. [in Serbian]. Available at: http://www.eps.rs/publikacije/interni_standardi/preporuke/tp9.zip. (Accessed on 14. May 2009.).
• [2] J. Nahman, Neutral Grounding of Distribution Networks, Naučna knjiga, Belgrade, Serbia, 1980, pp. 281-288. (in Serbian)
• [3] P. D. Rančić, "A new concept for linear grounding system analysis", IV International Symposium of Applied Electrostatics, ПЕС ’96, Niš, Yugoslavia, May 22-24, 1996, Proceedings, pp. 103-116.
• [4] N. N. Cvetković, P. D. Rančić, "Influence of the semi-spherical semi-conducting ground inhomogenity on the grounding characteristics", VII International Symposium on Electromagnetic Compatibility-EMC BARCELONA '06, September 05-09. 2006, Proc. of papers, pp 918-923.
• [5] N. N. Cvetković, P. D. Rančić, "Influence of foundation on pillar grounding system’s characteristics", COMPEL: The International Journal for Computation and Mathematics In Electrical and Electronic Engineering, Vol. 28, No. 2, pp. 471- 492, 2009.
• [6] N. N. Cvetković, P. D. Rančić, "A Simple Model for a Numerical Determination of Electrical Characteristics of a Pillar Foundation Grounding System", Engineering Analysis with Boundary Elements, Vol. 33, pp. 555-560, 2009.
• [7] N. N. Cvetković, P. D. Rančić, "The Influence of Semi-Spherical Inhomogenity on the Linear Grounding System Characteristics", FACTA UNIVERSITATIS, Series Electronics and Energetics, Vol. 20, No. 2, 2007, pp. 147-161. Available at: http://factaee.elfak.ni.ac.rs/fu2k72/2cvetkovic.html (Accessed on 14. May 2009.).
• [8] N. N. Cvetković, P. D. Rančić, "Model for Analyzing a Pillar Grounding System with Cylindrically-Shaped Concrete Foundation", Electromagnetics, Vol. 29, No. 2, pp. 151–164, 2009.
• [9] B. Popović, "Polynomial Approximation of Current Along Thin Symmetrical Cylindrical Dipole", Proc. IEE, Vol. 117, No. 5, 1970, pp 873-878.
• [10] R. F. Harrington, Field computation by Moment Methods, The Macmillan Company, New York, USA, 1969.
• [11] M. Chouteau, S. Beaulieu, "An investigation on application of the electrical resistivity tomography method to concrete structures", Geophysics, Los Angeles, CA, USA, 2002. Available at: http://www.dot.ca.gov/hq/esc/geotech/gg/geophysics2002/050chouteau_resistivity_tomography.pdf. (Accessed on 14. May 2009.)
• [12] J. Ribič, J. Podlipnik, "Grounding and negative effects of using zinc ground electrodes in objects foundation", Web presentation of Hermi Company, 2008. (In Serbian). Available at: http://www.hermi.si/sr/Projektanti/Uzemljenje/tabid/523/Default. aspx. (Accessed on 14. May 2009.)
• [13] J. V. Surutka, Electromagnetics. Građevinska knjiga, Belgrade, Serbia, 1989, pp.158. (in Serbian)
• [14] T. Radojičić, Concrete Constructions, Prosveta, Niš, Serbia, 1981. (in Serbian)
• [15] Ferro concrete montage foundation EBB-MT1. ELEKTROIZGRADNJA Bajina Bašta Company web site, 2009. (In Serbian). Available at: http://www.ebb.rs. (Accessed on 14. May 2009.).