A Simple Procedure to Obtain the Grounding Resistance Measurement of Very Large and Urban Electrodes by a Modified Fall-of-Potential Method

Jorge Moreno; Pascual Simón; Eduardo Faleiro; Daniel García; Gregorio Denche; Gabriel Asensio

doi:10.3390/app14178040

journal article Open Access Sep 08, 2024

A Simple Procedure to Obtain the Grounding Resistance Measurement of Very Large and Urban Electrodes by a Modified Fall-of-Potential Method

Jorge Moreno

Pascual Simón Eduardo Faleiro

Daniel García

Gregorio Denche

Gabriel Asensio

Applied Sciences Vol. 14 No. 17 pp. 8040 · MDPI AG

View at Publisher Save 10.3390/app14178040

Abstract

The measurement of the grounding resistance of grounding grids in large installations as well as grounding electrodes in urban areas is addressed in this article. The resistance value is obtained using a three-pin array by measuring the fall-of-potential on the ground surface. The resistance measured by this method is adjusted to its true value using a correction factor that aligns the measured resistance with the actual value. The proposed measurement method obtains correct values of the grounding resistance even when the auxiliary and potential electrodes of the tree-pin array are close to the electrode to be measured. Thus, it can be applied to large electrodes as well as electrodes in urban areas. Several simulated examples are used to illustrate the method, and some real cases with field measurements are presented for a final validation of the method.

Topics

No keywords indexed for this article. Browse by subject →

References

16

[1]

Lu "The Grounding Impedance Calculation of Large Steel Grounding Grid" Energy Procedia (2012) 10.1016/j.egypro.2012.02.077

[2]

Freschi "An Effective Semianalytical Method for Simulating Grounding Grids" IEEE Trans. Ind. Appl. (2013) 10.1109/tia.2012.2229688

[3]

Trifunovic "An Algorithm for Estimating the Grounding Resistance of Complex Grounding Systems Including Contact Resistance" IEEE Trans. Ind. Appl. (2015) 10.1109/tia.2015.2429644

[4]

Denche, G., Faleiro, E., Asensio, G., and Moreno, J. (2020). An Estimator of the Resistance of Large Grounding Electrodes from Its Geometric Characterization. Appl. Sci., 10. 10.3390/app10228162

[5]

Korasli, C. (2006, January 21–26). Ground Resistance Measurement with Alternative Fall-of-Potential Method. Proceedings of the 2005/2006 IEEE/PES Transmission and Distribution Conference and Exhibition, Dallas, TX, USA.

[6]

(2012). IEEE Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Ground System (Standard No. IEEE Std. 81-2012).

[7]

Ladanyi, J., and Smohai, B. (2013, January 6–8). Influence of Auxiliary Electrode Arrangements on Earth Resistance Measurement Using the Fall-of-Potential Method. Proceedings of the 2013 4th International Youth Conference on Energy (IYCE), Siofok, Hungary. 10.1109/iyce.2013.6604146

[8]

Dimcev, V., Handjiski, B., Vrangalov, P., and Sekerinska, R. (2000, January 8–12). Impedance measurement of grounding systems with alternative fall-of-potential method. Proceedings of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No. 00CH37129), Rome, Italy.

[9]

Alcantara, F.R. (2018, January 18–21). An Approximated Procedure to Find the Correct Measurement Point in the Fall-of-Potential Method. Proceedings of the 2018 IEEE PES Transmission & Distribution Conference and Exhibition—Latin America (T&D-LA), Lima, Peru.

[10]

Nassereddine, M., Rizk, J., Nagrial, M., and Hellany, A. (October, January 28). Substation earth grid measurement using the fall of potential method (FOP) for a limited test area. Proceedings of the 2014 Australasian Universities Power Engineering Conference (AUPEC), Perth, Australia. 10.1109/aupec.2014.6966483

[11]

Wamg "Grounding resistance measurement using fall-of-potential method with potential probe located in opposite direction to the current probe" IEEE Trans. Power Deliv. (1998) 10.1109/61.714472

[12]

Huang "Analysis of a Large Grounding System and Subsequent Field Test Validation Using the Fall of Potential Method" Energy Power Eng. (2013) 10.4236/epe.2013.54b240

[13]

Yuan "Grounding Resistance Measurement Method Based on the Fall of Potential Curve Test Near Current Electrode" IEEE Trans. Power Deliv. (2017) 10.1109/tpwrd.2016.2614519

[14]

Colella "Fall of Potential Measurement of the Earth Resistance in Urban Environments: Accuracy Evaluation" IEEE Trans. Ind. Appl. (2019) 10.1109/tia.2019.2892680

[15]

(2010). Earthing of Power Installations Exceeding 1 kV ac. UK Edition of Cenelec Standard, (Page 1 col II Para 1) (Standard No. EN 50522).

[16]

Faleiro "Interaction between interconnected and isolated grounding systems: A case study of transferred potentials" IEEE Trans. Power Deliv. (2014) 10.1109/tpwrd.2014.2379434

Metrics

2

Citations

16

References

Details

Published: Sep 08, 2024
Vol/Issue: 14(17)
Pages: 8040
License: View

Authors

J

Jorge Moreno