Optimization design of ground grid mesh of 69/13,8 KV substation using ETAP

Authors

DOI:

https://doi.org/10.51798/sijis.v4i3.693

Keywords:

Grounding Mesh, ETAP, Optimization, Short circuit current, Finite element analysis

Abstract

This scientific document presents the analysis and optimization of the mesh of the grounding system of a 69 / 13.8 kV substation in Ecuador. The mesh is made up of horizontal and vertical conductors connected with vertical electrodes buried under the ground of the substation. The function of the structure is to effectively dissipate the high short-circuit currents generated in the system. The objective is to determine the safety parameters of the ground mesh by comparing the mesh design analysis using the IEEE method and the Finite Element Analysis (FEM) method. These two methods are used differently to determine the electrical parameters of the ground mesh, the step voltage and touch voltage, the number of horizontal conductors, the number of vertical conductors, the number of electrodes, and the earth resistance of the Substation. ETAP 16.0 software is used for analysis. First, the maximum short-circuit current of the substation of 69 / 13.8 kV is determined. Second, the analysis is performed to determine the input and output parameters of the ground mesh structure using the IEEE and FEM methods. It ends with the results of the optimization of each of the specific methods, making a comparison of the two methods used and giving a recommendation regarding the best method for the design of the ground mesh.

Author Biographies

Joan Saltos-González, Technical University of Manabí, Ecuador.

Master's Degree in Electricity, Major in Electrical Power Systems. Graduate Faculty. Technical University of Manabí, Ecuador.

Wilber Saltos-Aráuz, Technical University of Manabí, Ecuador

Master's Degree in Electricity, Major in Electrical Power Systems. Graduate Faculty. Technical University of Manabí, Ecuador.

Hugo Adrián Pico-Mera, Technical University of Manabí, Ecuador

Master's Degree in Electricity, Major in Electrical Power Systems. Graduate Faculty. Technical University of Manabí, Ecuador

References

Araneo, R., & Mitolo, M. (2021). Electrical Safety Engineering of Renewable Energy Systems. John Wiley & Sons.

Barrera Navas, H. P. (2016). Diseño de una subestación tipo de distribución de 16 MVA 69/13, 8 kV y aplicación a la nueva subestación Totoras de la Empresa Eléctrica Ambato (Bachelor's thesis, Quito, 2016.).

Bernal Barzallo, L. M., Veintimilla Quezada, G. V., & Layana, J. (2019). Aplicación de redes inteligentes en sistemas eléctricos de distribución (Doctoral dissertation, FIEC).

Bugaliya, A. K., Vardhan, G., & Rahi, O. P. (2021). Design and Analysis of Grounding Grid Performance Using ETAP 16.0.0 Software. En A. Iqbal, H. Malik, A. Riyaz, K. Abdellah, & S. Bayhan (Eds.), Renewable Power for Sustainable Growth (Vol. 723, pp. 165–176). Springer Singapore. https://doi.org/10.1007/978-981-33-4080-0_16

Chauvin Arnoux Group. (2015). Guía de la medición de tierra, Ed. 2. Chauvin Arnoux Ibérica, S.A., 4-5.

Cheema, M. U., Cheema, M., Bashir, A., & Aslam, M. U. (2015). A Comparison of Ground Grid Mesh Design and Optimization for 500 kV Substation using IEEE 80-2000 and Finite Elements Methods. Electrical and Electronics Engineering: An International Journal (ELELIJ) Vol 4, 131-146.

GENIN Y GARCÉS. (2012). Etap Power Station. Obtenido de Etap Power Station: http://etapven.com/puesta_a_tierra.htm

Hardi, S., Nasution, A., & Purnamasari, F. (2019). Modelado de diseño de sistema de puesta a tierra usando labview. 2019 3rd International Conference on Electrical, Telecommunication and Computer Engineering (ELTICOM), 149–154. https://doi.org/10.1109/ELTICOM47379.2019.8943863

IEEE Standard for Developing Software Life Cycle Processes. (1992). IEEE Std 1074-1991, 1–112. https://doi.org/10.1109/IEEESTD.1992.101080

Liu, K., Zhang, S., Li, B., Zhang, C., Liu, B., Jin, H., & Zhao, J. (2021). Flexible grounding system for single-phase to ground faults in distribution networks: A systematic review of developments. IEEE Transactions on Power Delivery, 37(3), 1640-1649.

María Alvarado, Baca, R., & Ynga, A. (2021). MODELADO DE UN SISTEMA DE PUESTA A TIERRA EN FUNCIÓN A LA FRECUENCIA Y EL COMPORTAMIENTO DE LOS ELECTRODOS ANTE DESCARGAS ATMOSFÉRICAS, CALLAO 2020. http://209.45.55.171/handle/20.500.12952/5877

Moya Piedra, J. R., & Pilatasig Quispe, W. B. (2019). Dimensionamiento de la malla de puesta a tierra para los laboratorios de alto voltaje de la universidad técnica de Cotopaxi (Bachelor's thesis, Ecuador: Latacunga: Universidad Técnica de Cotopaxi (UTC).

Nandhini, P., Kumar, P., Mickymaray, S., Alothaim, A. S., Somasundaram, J., & Rajan, M. (2022). Recent Developments in Methicillin-Resistant Staphylococcus aureus (MRSA) Treatment: A Review. Antibiotics (Basel, Switzerland), 11(5), 606. https://doi.org/10.3390/antibiotics11050606

Norma IEEE 80-2000. (2000). Guide for Safety in AC Substation Grounding. IEEE 80-2000.

Oputa, O., & Madueme, T. C. (2019). Fault analysis on Nigeria 330kV transmission system using ETAP. Nigerian Journal of Technology, 38(1), 202. https://doi.org/10.4314/njt.v38i1.25

Padilla, H. S. P., & Herrera, D. R. V. (2020). MODELACIÓN Y SIMULACIÓN DE MALLAS DE PUESTA A TIERRA UTILIZANDO EL MÉTODO DE ELEMENTOS FINITOS EN TRES DIMENSIONES Y UN MODELO FÍSICO REAL A ESCALA. 120. https://bibdigital.epn.edu.ec/handle/15000/20809

Telló, M., Gazzana, D. S., Telló, V. B., Pulz, L. T., Leborgne, R. C., & Bretas, A. S. (2020). Substation grounding grid diagnosis applying optimization techniques based on measurements and field tests. IEEE Transactions on Industry Applications, 56(2), 1190-1196.

Uma, U. U., Uzoechi, L., & Robert, B. (2016). Optimization Design Of Ground Grid Mesh of 132/33 kV Substation using Etap. Nigerian Journal of Technology (NIJOTECH), 926-934.

Zhang, Z., Mei, D., Dan, Y., Zou, J., Liu, G., & Gao, C. (2020). Novel method for diagnosing corrosion of grounding electrodes in soil. Electric Power Systems Research, 178, 106049. https://doi.org/10.1016/j.epsr.2019.106049

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Published

2023-09-01

How to Cite

Saltos-González, J. ., Saltos-Aráuz, W. ., & Pico-Mera, H. A. . (2023). Optimization design of ground grid mesh of 69/13,8 KV substation using ETAP. Sapienza: International Journal of Interdisciplinary Studies, 4(3), e23038. https://doi.org/10.51798/sijis.v4i3.693

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Section

Applied Sciences - Original Articles