Modeling and protection plan elaboration for medium voltage electrical network: Application to Berecingou substation
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Author |
Patrice Koffi Chetangny, Victor Zogbochi, Mawuena Medewou, Mèhundo Walix Leslie D. E., Gérald Barbier and Didier Chamagne
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e-ISSN |
1819-6608 |
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On Pages
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364-374
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Volume No. |
21
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Issue No. |
6
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Issue Date |
May 20, 2026
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DOI |
https://doi.org/10.59018/032645
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Keywords |
short-circuit, protection plan, relay setting, electrical network, NEPLAN simulation.
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Abstract
The growing energy demand in Natitingou, Kouandé, Kérou, and Péhunco (2KP) necessitates the densification and extension of electrical networks, requiring a reassessment of protection relay settings. This study focuses on developing a comprehensive protection plan for the Bérécingou substation's Medium Voltage (MV) network and optimizing its relay settings. The methodology follows a structured approach: first, the Bérécingou network was modeled using the NEPLAN software, incorporating detailed parameters of the substation and feeders. Next, two-phase and three-phase short-circuit currents were computed analytically using the impedance method, following IEC 60909 standards. The results were validated through NEPLAN simulations, ensuring accuracy and reliability. A comparative analysis was then performed, contrasting the computed values with actual relay settings in the substation to identify discrepancies and areas for improvement. Based on these findings, new protection settings were proposed, emphasizing optimal coordination and selectivity to enhance network stability and fault response efficiency. The study’s outcomes demonstrate the necessity of recalibrating the protection system to align with updated short-circuit characteristics. The proposed settings, validated through both analytical and simulation methods, improve fault isolation, minimize unnecessary power outages, and enhance the resilience of the substation’s protection scheme. These findings provide a robust framework for designing and implementing efficient protection strategies in MV distribution networks.
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