Analysis of special operating modes of industrial electrical networks with an isolated neutral
DOI:
https://doi.org/10.15588/1607-6761-2025-3-5Keywords:
power supply system, isolated neutral, ground fault current, capacitive current, single-phase-to-ground fault protection, automatic reclosingAbstract
Purpose. Development of methodological and technical solutions aimed at improving energy efficiency and ensuring the reliability of power supply systems of industrial enterprises.
Methodology. System analysis of operating modes of power supply systems, experimental measurements using hardware–software complexes, and assessment of their impact on reliability and power quality indicators.
Results obtained. An approach to the formation of operating modes of power supply systems that contributes to improving energy efficiency has been proposed. The influence of transient processes on power quality has been investigated, and practical recommendations for optimizing the operation of energy-intensive enterprises have been substantiated.
Scientific Novelty. An innovative methodology for monitoring the insulation parameters of electrical networks operating at 6–10 kV has been developed, enabling diagnostics under real operating conditions.
Practical Value. The study proposes a comprehensive framework aimed at enhancing the energy efficiency and reliability of power supply systems. The obtained results are applicable to the modernization and optimization of industrial power networks.
References
Pivniak, H., Aziukovskyi, O., Papaika, Y., Lutsenko, I., & Neuberger, N. (2022). Problems of development of innovative power supply systems of Ukraine in the context of European integration. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, (5), 89–103. https://doi.org/10.33271/nvngu/2022-5/089
Papaika, Y., Lysenko, O., Koshelenko, Y., & Olishevskyi, I. (2021). Mathematical modeling of power supply reliability at low voltage quality. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, (2), 97–103. https://doi.org/10.33271/nvngu/2021-2/097
Pivnyak, G., Azukovskiy, O., Papaika, Y., Cabana, E. C., Olczak, P., & Dyczko, A. (2021). Assessment of power supply energy efficiency by voltage quality criterion. Rynek Energii, 4(155), 75–84.
Nikander, A., & Järventausta, P. (2017). Identification of high-impedance earth faults in neutral isolated or compensated MV networks. IEEE Transactions on Power Delivery, 32, 1187–1195. https://ieeexplore.ieee.org/document/7809183
Lahutin, V. M., Zelinskyi, V. T., & Burykin, O. B. (2010). Testing of electrical machines and transformers in power systems. Vinnytsia: VNTU.
Papaika, Y., Lysenko, O., Rogoza, M., Stepanenko, Y., Tokar, L., & Yakimets, S. (2019). Energy losses within the electric equipment in terms of poor voltage quality. Bulletin of Mykhailo Ostrohradskyi Kremenchuk National University, 1(114), 9–13. https://doi.org/10.30929/1995-0519.2019.1.9-13
Vovk, Y. M., & Sydorenko, V. V. (2019). Neutral operating modes in networks up to 35 kV. Lviv: LNTU.
Promavtomatyka. (n.d.). Technical documentation. Kyiv. https://promautomatika.kiev.ua
Rules for Electrical Installations (PUE). (2006). Kyiv: Ministry of Fuel and Energy of Ukraine.
Bieliaiev, B. M. (2007). Compensation of ground fault currents. Kyiv: Tekhnika.
Stepanenko, Y. V. (2024). Study of unbalance voltage in three-phase networks with different neutral modes. Electrical Engineering & Power Engineering, (2), 27–35. https://doi.org/10.15588/1607-6761-2024-2-3
Khrapach, S. P. (2020). Fundamentals of relay protection. Dnipro: NMetAU.
DSTU 31348:2005. (2005). Calculation of short-circuit currents.
Lowczowski, K., Lorenc, J., Andruszkiewicz, J., Nadolny, Z., & Zawodniak, J. (2019). Novel earth fault protection algorithm based on MV cable screen zero sequence current filter. Energies, 12(16), 3190. https://doi.org/10.3390/en12163190
Pivnyak, G. G., Zhezhelenko, I. V., & Papaika, Y. A. (2016). Transients in electric power supply systems. Switzerland: Trans Tech Publications LTD. http://trove.nla.gov.au/version/232262440
Balasmekh, F. K. (1997). Transient processes in ground faults. In Proceedings of the International Scientific and Technical Conference "Modern Technologies for Economic and Safe Use of Electric Power" (pp. 163–168). Dnipropetrovsk.
Fedosieiev, S. V. (2012). Protection against earth faults. Kharkiv: Energoatom.
Abbas, A. K., Hamad, S., & Hamad, N. A. (2021). Single line to ground fault detection and location in medium voltage distribution system network based on neural network. International Journal of Electrical and Computer Engineering Systems, 23(2), 621–632. https://doi.org/10.11591/ijeecs.v23.i2.pp621-632
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2025 Yu.A. Papaika, O.G. Lysenko, M.M. Malyshko, O.V. Udovyk
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Creative Commons Licensing Notifications in the Copyright Notices
Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under aCreative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.
