Autors: Ushashki, Y., P., Malamov, I. D., Hadzhiev, I. S. Title: Analytical determination of short-circuit currents of a 400 kV step-down substation Keywords: short-circuit current, substationAbstract: This paper presents the results of a study of short-circuit currents in a 400/121/31,5/0,4 kV substation. Using the impedance method and the short-circuit power method, three-phase and two-phase short-circuit currents were determined at the main points of the substation scheme. The analysis of the obtained data shows a practical coincidence of the results achieved by the two methods. References - Papkov, B., Vukolov, V. Electric Power Systems and networks. Short-circuit currents, 3rd Edition, Moscow: Yurait Publishing House LLC, 2017. (in Russian)
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Issue
| Youth Forums “Science, Technology, Innovation, Business” 2025, pp. 76-80, 2025, Bulgaria, ISSN 2367-8569 |
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