Calculation of the Effect of Substation Configuration on the Resistance Value of the Grounding System

Ayu Fitriani; Jhoni Hidayat; Joel Panjaitan; Syofyan Anwar Syahputra; Mili Alfisari

doi:10.29103/jreece.v5i1.15014

Calculation of the Effect of Substation Configuration on the Resistance Value of the Grounding System

Ayu Fitriani, Jhoni Hidayat, Joel Panjaitan, Syofyan Anwar Syahputra, Mili Alfisari

Abstract

Generally, the configuration of the substation grounding system is in the form of a grid or mesh, where several conductor rods are installed vertically and horizontally or combined with conductor rods planted deep in the ground from each point or not. The substation configuration is very complex because of the many variables used in accordance with IEEE Standard 80-2013. This variable also influences the allowable and actual magnitude of the step voltage and touch voltage. The substation grounding system configuration can be designed in several shapes including rectangular, square, L-shaped and T-shaped. The parameters used are an area of 70 m x 70 m, a conductor rod depth of 0.5 meters with a total conductor length for a rectangle of 1540 meters without rods, an L-Shaped shape of 1755 meters and a T-Shaped shape of 3857 meters. The results obtained by the resistance of the grounding system without rods in the T-Shaped configuration were 2.39 Ω. For the resistance results, the grounding system uses a rod with the same area and a conductor length of 3917 meters with a resistance value of 2.39 Ω in the T-shape configuration. The results of the resistance values obtained with various forms of grounding system configurations and varying conductor lengths are still safe and below the threshold or standard of the grid grounding system.

Keywords

Resistance, Rectangular, L-shaped, T-shaped

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References

Adebayo, A. D., & Ujam, C. J. (2023). Analysis of electrical grounding design of substation and lines. International Journal of Scholarly Research in Engineering and Technology, 2(1), 31–40.

Altaher, A. (2018). Implementation of a dependability framework for smart substation automation systems: application to electric energy distribution. Université Grenoble Alpes.

Amadi, H. N. (2017). Design of grounding system for AC substations with critical consideration of the mesh, touch and step potentials. European Journal of Engineering and Technology Vol, 5(4).

Cheema, M. U., Cheema, M., Bashir, A., & Aslam, M. U. (2015). A comparison of ground grid mesh design and optimization for 500KV substation using IEEE 80-2000 and finite element methods. Electrical and Electronics Engineering: An International Journal (ELELIJ), 4(1), 131–146.

Gouda, O. E.-S. (2024). Step and Touch Voltages and Grounding Potential Rise (IEEE and IEC). In Performance of Grounding Grids at Faulty and Lightning Strokes Conditions (pp. 221–294). IGI Global.

Hardi, S., Andira, R., Nisja, I., Octrialdi, B., & Pinem, M. (2021). Economic design of substation grounding grid using etap software: a case study of 2 x 500 mva galang substation. Journal of Physics: Conference Series, 1811(1), 12055.

Hu, H., Fang, M., Hu, F., Zeng, S., & Deng, X. (2021). A new design of substation grounding based on electrolytic cathodic protection and on transfer corrosion current. Electric Power Systems Research, 195, 107174.

Huang, Q., Jing, S., Li, J., Cai, D., Wu, J., & Zhen, W. (2016). Smart substation: State of the art and future development. IEEE Transactions on Power Delivery, 32(2), 1098–1105.

Ibrahim, M. A. (2011). Disturbance analysis for power systems. John Wiley & Sons.

Jose, S., & others. (2015). Practical Approach on Lightning and Grounding Protection System. International Journal of Engineering Research, 4(4), 192–196.

Keller, E. A., & DeVecchio, D. E. (2019). Natural hazards: earth’s processes as hazards, disasters, and catastrophes. Routledge.

Kostić, V. I., & Raičević, N. B. (2016). An alternative approach for touch and step voltages measurement in high-voltage substations. Electric Power Systems Research, 130, 59–66.

Krieg, T. (2019). Substations. In Springer Handbook of Power Systems (pp. 867–934). Springer.

Paul, V. K., & others. (2020). Understanding Vulnerability and Resilience of Critical Infrastructure in Extreme Weather Events. New Delhi, India: School of Planning and Architecture, New Delhi.

Pickett, B., Elkin, P., Benner, C., Carroll, P., Hataway, G., Houser, K., Liao, Y., Martin, A., Mulawarman, A., Mysore, P., & others. (2015). Reducing outages through improved protection, monitoring, diagnostics, and autorestoration in transmission substations—(69 kV and above). IEEE Transactions on Power Delivery, 31(3), 1327–1334.

Putra, D. E., Pardede, G. P. V, Kurniawan, F., Saputra, M. W., Sinaga, R., Rahmanda, A., Rudini, B., Putra, R. E., & Salis, M. W. (2023). Comparison of grounding resistance using grounding rod electrodes with different fault current types in podzolic soil at Prabumulih Substation. Journal of Renewable Energy, Electrical, and Computer Engineering, 3(1), 19–25.

Shroder, J. F. (2021). Landslide hazards, risks, and disasters. Elsevier.

Smith, K., Fearnley, C. J., Dixon, D., Bird, D. K., & Kelman, I. (2023). Environmental hazards: assessing risk and reducing disaster. Routledge.

Uzunlar, F. B., & Kalenderli, Ö. (2009). Three dimensional grounding grid design. 2009 International Conference on Electrical and Electronics Engineering-ELECO 2009, I--139.

Zimba, S. K., Nyamutswa, I., & Chikova, A. (2017). Islanding power systems to minimize impact of system disturbances in Southern African Power Pool. 2017 IEEE AFRICON, 1107–1112.

DOI: https://doi.org/10.29103/jreece.v5i1.15014