Considerations in the design of electrical substations, including the effect of potential gradient on surrounding metallic structures

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Published: Aug 17, 2022
Updated: 2022-08-17
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2022-08-17 (4)
DOI: https://doi.org/10.17163/ings.n28.2022.01
Keywords:
Electrical substation, grounding systems, ground grid, potential transfer, step and touch voltage, buried metal structures

Main Article Content

Wilo Chiliquinga
https://orcid.org/0000-0003-4752-2300
Pablo Robles
https://orcid.org/0000-0001-8673-3974

Abstract

For designing and studying an electrical substation grounding system [GS], a simple remote substation is considered according to the safety procedures indicated in the IEEE 80 Standard. Buried metallic materials or nearby metallic structures permanently endanger human life when electrical faults occur. Scenarios related to the design of electrical substations that consider the transfer of electrical potentials that can occur between the GS and buried metallic materials in their vicinity are presented, the behavior of potential transfer is evaluated, values of transferred voltages are calculated, and the main variables that influence the transferred voltage levels are identified. The simulations are performed with the CYMGRD software specific for GS calculations. Its analysis generates real results in the potential transfer that must be considered by the GS design engineer, which enables to avoid designing isolated substations without taking into account existing elements that may affect the substation surroundings.

Article Details

Issue
No. 28 (2022): july-december
Section
Special Issue: Electric Networks and Smart Cities
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References

J. Nahman and D. Salamon, “Mutual interference of neighboring grounding systems and approximate formulation,” Electric Power Systems Research, vol. 151, pp. 166–173, 2017. [Online]. Available: https://doi.org/10.1016/j.epsr.2017.05.029

L. Fu, “The influence of Urban Substation on Neighbouring Metal Grounding System,” Journal of Physics: Conference Series, vol. 1176, no. 4, 2019. [Online]. Available: https://doi.org/10.1088/1742-6596/1176/4/042051

L. Neamt, H. Balan, O. Chiver, and A. Hotea, “Considerations about Substation Grounding System Design,” in Proceedings of 2019 8th International Conference on Modern Power Systems, MPS 2019. Institute of Electrical and Electronics Engineers Inc., 2019. [Online]. Available: https://doi.org/10.1109/MPS.2019.8759737

M. L. Di Silvestre, L. Dusonchet, S. Favuzza, S. Mangione, L. Mineo, M. Mitolo, E. R. Sanseverino, and G. Zizzo, “On the Interconnections of HV-MV Stations to Global Grounding Systems,” IEEE Transactions on Industry Applications, vol. 55, no. 2, pp. 1126–1134, 2019. [Online]. Available: https://doi.org/10.1109/TIA.2018.2875383

G. Aiello, S. A. Rizzo, S. Alfonzetti, and N. Salerno, “Computation of Transferred Potentials from Grounding Grids by Means of Hybrid Methods,” in Proceedings - 2018 IEEE International Conference on Environment and Electrical Engineering and 2018 IEEE Industrial and Commercial Power Systems Europe, EEEIC/I and CPS Europe 2018. Institute of Electrical and Electronics Engineers Inc., 2018. [Online]. Available: https://doi.org/10.1109/EEEIC.2018.8493916

L. Popovic, “Preliminary testing and assessment of safety conditions of HV substations located in urban areas,” Electric Power Systems Research, vol. 195, 2021. [Online]. Available: https://doi.org/10.1016/j.epsr.2021.107111

C. Martineac and R. N. Hasanah, “Influence of soil resistivity on substations earth grounding system,” in Proceedings of 2019 8th International Conference on Modern Power Systems, MPS 2019. Institute of Electrical and Electronics Engineers Inc., 2019. [Online]. Available: https://doi.org/10.1109/MPS.2019.8759796

G. Cafaro, P. Colella, P. Montegiglio, E. Pons, R. Tommasini, F. Torelli, and G. Valtorta, “Ground Resistance of Buried Metallic Parts in Urban Areas: An Extensive Measurement Campaign,” IEEE Transactions on Industry Applications, vol. 53, no. 6, pp. 5209–5216, 2017. [Online]. Available: https://doi.org/10.1109/TIA.2017.2748502

W. A. Byrd, “Below Grade Coated Direct Imbedded Steel Pole Corrosion Failures With Solutions,” IEEE Power and Energy Technology Systems Journal, vol. 6, no. 1, pp. 41–46, 2018. [Online]. Available: https://doi.org/10.1109/JPETS.2018.2884974

Q. Lv, Z. Xiang, X. Li, J. Ai, S. Liu, and C. Zhang, “Research on overvoltage protection strategy of oil-gas pipeline based on non-metallic grounding material,” in 2019 4th International Conference on Intelligent Green Building and Smart Grid, IGBSG 2019. Institute of Electrical and Electronics Engineers Inc., 2019, pp. 97–102. [Online]. Available: https://doi.org/10.1109/IGBSG.2019.8886338

S. A. H. Mohammed and I. M. Abdulbaqi, “Numerical Study and Design of an Impressed Current Cathodic Protection System for Buried Metallic Pipes,” in 2018 3rd Scientific Conference of Electrical Engineering, SCEE 2018. Institute of Electrical and Electronics Engineers Inc., 2018, pp. 95–100. [Online]. Available: https://doi.org/10.1109/SCEE.2018.8684076

E. Inga and R. Hincapié, “Creación de artículos académicos basados en minería de datos y Web 2.0 para incrementar la producción científica en ingeniería,” Revista Educación en Ingeniería, vol. 10, no. 20, pp. 65–74, 2015. [Online]. Available: https://bit.ly/3MX1Woz

T. H. Shabangu, P. Shrivastava, B. T. Abe, K. B. Adedeji, and P. A. Olubambi, “Influence of AC interference on the cathodic protection potentials of pipelines: Towards a comprehensive picture,” in 2017 IEEE AFRICON: Science, Technology and Innovation for Africa, AFRICON 2017. Institute of Electrical and Electronics Engineers Inc., 2017, pp. 597–602. [Online]. Available: https://doi.org/10.1109/AFRCON.2017.8095549

G. Liu, G. Jiang, Z. Zhang, D. Mei, and Y. Zheng, “Research on the influence of DC current overflowing on grounding electrode corrosion,” in Proceedings of 2017 IEEE 3rd Information Technology and Mechatronics Engineering Conference, ITOEC 2017, vol. 2017-Janua. Institute of Electrical and Electronics Engineers Inc., 2017, pp. 291–295. [Online]. Available: https://doi.org/10.1109/ITOEC.2017.8122438

M. G. Mahlobo, P. Mjwana, M. N. Tladi, B. A. Obadele, P. A. Olubambi, and P. Refait, “Evaluation of cathodic protection performance of carbon steel pipeline buried in soil: A review,” in 2018 IEEE 9th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2018, vol. 2018-Janua. Institute of Electrical and Electronics Engineers Inc., 2018, pp. 37–43. [Online]. Available: https://doi.org/10.1109/ICMIMT.2018.8340417

B. Zhang, F. Cao, X. Meng, Y. Liao, and R. Li, “Numerical approach of impressed potential on buried pipelines near high-voltage DC grounding electrodes,” IET Generation, Transmission and Distribution, vol. 12, no. 5, pp. 1177–1182, 2018. [Online]. Available: https://doi.org/10.1049/iet-gtd.2017.1436

F. Babaghayou, B. Zegnini, and T. Seghier, “Experimental model investigation of the corrosion of buried steel pipelines with cathodic protection near high voltage power lines,” Proceedings of 2016 International Conference on Electrical Sciences and Technologies in Maghreb, CISTEM 2016, pp. 1–6, 2017. [Online]. Available: https://doi.org/10.1109/CISTEM.2016.8066812

H. Xuedong, Y. Wei, L. Xinghua, S. Xiangping, and H. Xuyin, “Analysis of grounding status of substation secondary system and improvement measures,” in China International Conference on Electricity Distribution, CICED, 2018, pp. 1479–1483. [Online]. Available: https://doi.org/10.1109/CICED.2018.8592194

M. Di Silvestre, L. Dusonchet, S. Favuzza, S. Mangione, L. Mineo, M. Mitolo, E. Sanseverino, and G. Zizzo, “Interconnections criteria of grounding grids in global grounding systems,” in Conference Record - Industrial and Commercial Power Systems Technical Conference, vol. 2018-May, 2018, pp. 1–8. [Online]. Available: https://doi.org/10.1109/ICPS.2018.8369974

R. Pereira Sodre, B. Lopes Pereira, L. Leite Sidrim, J. F. Almeida, and C. L. S. Souza Sobrinho, “Optimization of Grounding Grids Design for a Square-Shaped Mesh,” IEEE Latin America Transactions, vol. 16, no. 1, pp. 135–139, 2018. [Online]. Available: https://doi.org/10.1109/TLA.2018.8291465

C. Payshetti, H. Jadhav, and S. Kulkarani, “Analysis of grounding grid of substation,” in Proceedings of IEEE International Conference on Circuit, Power and Computing Technologies, ICCPCT 2017, 2017. [Online]. Available: https://doi.org/10.1109/ICCPCT.2017.8074259

I. Kasim, S. Abduh, and N. Fitryah, “Grounding system design optimization on 275 KV betung substation based on IEEE standard 80-2000,” in QiR 2017 - 2017 15th International Conference on Quality in Research (QiR): International Symposium on Electrical and Computer Engineering, vol. 2017-Decem. Institute of Electrical and Electronics Engineers Inc., 2017, pp. 400–407. [Online]. Available: https://doi.org/10.1109/QIR.2017.8168519

M. D. Kavimandan and A. M. Silva, “Impacts of Existing Infrastructure on Soil Resistivity,” Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference, vol. 2020-Octob, pp. 20–23, 2020. [Online]. Available: https://doi.org/10.1109/TD39804.2020.9299899

A. Raizer, W. Valente, and V. L. Coelho, “Development of a new methodology for measurements of earth resistance, touch and step voltages within urban substations,” Electric Power Systems Research, vol. 153, pp. 111–118, 2017. [Online]. Available: https://doi.org/10.1016/j.epsr.2017.01.025

M. Abdaldaim, P.Wang, and L. Li, “The design of 110kV substation grounding grid with high resistivity soil,” in 2017 IEEE 6th Asia-Pacific Conference on Antennas and Propagation, APCAP 2017 - Proceeding. Institute of Electrical and Electronics Engineers Inc., 2018, pp. 1–3. [Online]. Available: https://doi.org/10.1109/APCAP.2017.8420847

X. Wu, V. Simha, R. J. Wellman, M. Thakur, and S. S. Dimpfl, “Substation Grounding Study Input Parameter Sensitivity Analysis and Simulation Strategies,” in IEEE Transactions on Industry Applications, vol. 55, no. 3. Institute of Electrical and Electronics Engineers Inc., 2019, pp. 2272–2280. [Online]. Available: https://doi.org/10.1109/TIA.2018.2885475

D. S. Gazzana, A. B. Tronchoni, R. C. Leborgne, M. Telló, and A. S. Bretas, “Numerical Technique to the Evaluation of Multiple Grounding Electrodes Coupled by the Soil in High Voltage Substations,” in Proceedings - 2019 IEEE International Conference on Environment and Electrical Engineering and 2019 IEEE Industrial and Commercial Power Systems Europe, EEEIC/I and CPS Europe 2019. Institute of Electrical and Electronics Engineers Inc., 2019. [Online]. Available: https://doi.org/10.1109/EEEIC.2019.8783554

C. Gomes and M. Izadi, “Electrical Isolation of Two Earthing Systems under Lightning Conditions with TiO2 Nano Fluid Barrier,” 2019 15th International Symposium on Lightning Protection, SIPDA 2019, no. October, pp. 1–5, 2019. [Online]. Available: https://doi.org/10.1109/SIPDA47030.2019.8951640

P. R. Bonda and M. K. Mishra, “Optimized Design of Earthing System for Substations with High Soil Resistivity and Limited Plot Area,” in 2018 20th National Power Systems Conference, NPSC 2018. Institute of Electrical and Electronics Engineers Inc., 2018. [Online]. Available: https://doi.org/10.1109/NPSC.2018.8771780

M. Salam, Q. Rahman, S. Ang, and F. Wen, “Soil resistivity and ground resistance for dry and wet soil,” Journal of Modern Power Systems and Clean Energy, vol. 5, no. 2, pp. 290–297, 2017. [Online]. Available: https://doi.org/10.1007/s40565-015-0153-8

C. Cardoso, L. Rocha, A. Leiria, and P. Teixeira, “Validation of an integrated methodology for design of grounding systems through field measurements,” in CIRED - Open Access Proceedings Journal, vol. 2017, no. 1, 2017, pp. 897–901. [Online]. Available: https://doi.org/10.1049/oap-cired.2017.0452

K. P. Sengar and K. Chandrasekaran, “Designing of cost minimum substation grounding grid system using DE, SCA, and HDESCA techniques,” IET SCIENCE MEASUREMENT & TECHNOLOGY, vol. 13, no. 9, pp. 1260–1267, 2019. [Online]. Available: https://doi.org/10.1049/iet-smt.2019.0021

M. Campaña, P. Masache, E. Inga, and D. Carrión, “Estabilidad de tensión y compensación electrónica en sistemas eléctricos de potencia usando herramientas de simulación,” Ingenius, vol. 2, no. 1, 2022. [Online]. Available: https://doi.org/10.17163/ings.n28.2022.07

M. H. Elmashtoly, H. I. Anis, and A. Emam, “Mitigating Hazardous Potentials Near Pipelines Using Passive Grounding Grids,” IEEE Access, vol. 9, pp. 121 957–121 963, 2021. [Online]. Available: https://doi.org/10.1109/ACCESS.2021.3109309

L. Amaya and E. Inga, “Location of Harmonic Distortions in Electrical Systems using Compressed Sensing,” Ingeniería y Competitividad, vol. 24, no. 1, p. 15, 2022. [Online]. Available: https://bit.ly/3xA4zqI

N. Permal, M. Osman, A. M. Ariffin, and M. Z. Abidin Ab Kadir, “Effect of non-homogeneous soil characteristics on substation groundinggrid performances: A review,” Applied Sciences (Switzerland), vol. 11, no. 16, 2021. [Online]. Available: https://doi.org/10.3390/app11167468

P. Musil, P. Mlynek, J. Slacik, and J. Pokorny, “Simulation-based evaluation of the performance of broadband over power lines with multiple repeaters in linear topology of distribution substations,” Applied Sciences (Switzerland), vol. 10, no. 19, pp. 1–24, 2020. [Online]. Available: https://doi.org/10.3390/app10196879

B. Anggoro, R. S. Utami, and L. Handayani, “Optimal Design of Grounding System Substation, Case Study : 275/150 kV Sigli Substation,” Proceedings of the 2nd International Conference on High Voltage Engineering and Power Systems: Towards Sustainable and Reliable Power Delivery, ICHVEPS 2019, vol. 1, 2019. [Online]. Available: https://doi.org/10.1109/ICHVEPS47643.2019.9011064

X. Tian, Z. Lan, F. Huo, Z. Huang, S. Huang, Y. Ding, J. Geng, X. Yan, and Y. Liu, “Calculation of electric field on substation equipment considering AC Ion flow field,” Mathematical Problems in Engineering, vol. 2020, 2020. [Online]. Available: https://doi.org/10.1155/2020/3914872

Z. G. Datsios and P. N. Mikropoulos, “Safety performance evaluation of typical grounding configurations of MV/LV distribution substations,” Electric Power Systems Research, vol. 150, pp. 36–44, 2017. [Online]. Available: https://doi.org/10.1016/j.epsr.2017.04.016

Z. Liu, W. Shi, and B. Zhang, “Numerical analysis of transient performance of grounding grid with lightning rod installed on multi-grounded frame,” Energies, vol. 14, no. 12, pp. 1–13, 2021. [Online]. Available: https://doi.org/10.3390/en14123392

V. P. Androvitsaneas, K. D. Damianaki, C. A. Christodoulou, and I. F. Gonos, “Effect of soil resistivity measurement on the safe design of grounding systems,” Energies, vol. 13, no. 12, 2020. [Online]. Available: https://doi.org/10.3390/en13123170

B. Küchler, U. Schmidt, and J. Hänsch, “Harmonic current distribution in grounding systems of cabled medium voltage grids during single-pole ground fault,” Energies, vol. 14, no. 4, 2021. [Online]. Available: https://doi.org/10.3390/en14041110

F. Sinchi-sinchi, C. Coronel-naranjo, A. Barragánescandón, and F. Quizhpi-palomeque, “Soil Treatment to Reduce Grounding Resistance by Applying Low-Resistivity Material (LRM) Implemented in Different Grounding Systems Configurations and in Soils with Different Resistivities,” Applied Sciences, vol. 12, 2022. [Online]. Available: https://doi.org/10.3390/app12094788

F. Holik, L. H. Flå, M. G. Jaatun, S. Y. Yayilgan, and J. Foros, “Threat Modeling of a Smart Grid Secondary Substation,” Electronics (Switzerland), vol. 11, no. 6, pp. 1–21, 2022. [Online]. Available: https://doi.org/10.3390/electronics11060850