Results 1 to 10 of about 494,648 (339)
Simulation of single-phase ground short circuit protection device [PDF]
E3S Web of Conferences, 2021 The most common type of short circuit in a three-phase system is a single-phase-to-ground short circuit, accounting for 70 to 90% of electrical faults.
Zhumadirova Aliya +2 more
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Currents in the overhead transmission line lighting wire in case of single-phase short circuit [PDF]
E3S Web of Conferences, 2018 The algorithms for currents induced in a grounded lightning wire (LW) with single-phase short circuit (SC) calculation are considered. It is shown that the method of short-circuit current and current in LW simultaneous determination gives more correct ...
Zimin Kirill +3 more
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SIMULATION AND RESEARCH OF SINGLE-PHASE SHORT CIRCUITS IN THE ELECTRICAL NETWORK
Збірник наукових праць Дніпровського державного технічного університету (технічні науки), 2023 The purpose of this work is to model single-phase short circuits in a three-phase electrical network and identify their type by analyzing the angular frequency of the spatial vector. Recently, the saturation of electric networks with powerful non-linear loads, the introduction of conversion equipment and renewable energy sources lead to the need for ...
Voloshko Аnatoly, Dzheria Tetiana
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Mathematical Modelling of Transient Processes in a Three Phase Electric Power System for a Single Phase Short-Circuit [PDF]
Energies, 2022 Field approaches are employed to develop a mathematical model of a power network section. The facility consists of two electric power subsystems described with ordinary differential equations and presented as concentrated parameter systems connected with
Andriy Chaban +3 more
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Electrical engineering & Electromechanics, 2015 Introduction. Earthing device electrical substation in modern conditions must meet both the requirements of electrical safety of people and animals, as well as electromagnetic compatibility requirements established her electrical equipment.
V. I. Nizhevskyi +3 more
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Reason Analysis for the increase of single-phase short circuit current and its suppressing measure [PDF]
Proceedings of the 4th International Conference on Information Technology and Management Innovation, 2015 KEYWORD: Single-phase short circuit current; Neutral grounding; Small reactance; Autotransformer ABSTRACT: Aiming at the issue that the single-phase short circuit current at the 220 kV bus of Chengdu 500kV substation exceeds the three-phase short current or even exceeds the breaking capacity of breaker, the reason is analyzed and the measure that main ...
G. Chen, H. Zhang, Y. Li
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Research on the Distribution Network’s Single-phase Short-circuit Faults with Wavelet Transform [PDF]
Advances in Intelligent Systems Research, 2015 According to the problem that the single phase grounding fault location is difficult to detect, a novel method of identifying fault line for single phase grounding fault is presented, based on the detailed analysis of the transient zero sequence network's fault characteristics in the small current neutral grounding power system.
Yan Xu, Hongyuan Huang
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Известия высших учебных заведений: Проблемы энергетикиThe relevance of the study lies in the consideration and correction of the results of calculations of the single-phase short circuit current in a rural 0.4 kV electric network obtained using existing physical, computer and mathematical methods that give ...
A. A. Lansberg, A. V. Vinogradov
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Analysis of Short Circuit Strength of Single-Phase Four-Column Transformer Windings [PDF]
According to statistics, short circuit faults in transformer windings account for 70% to 80% of the total faults. Therefore, the study of the short circuit withstand capability of transformers holds significant importance. This paper focuses on investigating the winding deformation and short circuit strength of a ODFPS-700000/750 single-phase four ...
Zhou, Xiu +6 more
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Method for Restricting Grid Single-Phase Short-Circuit Current [PDF]
International Journal of Computer and Electrical Engineering, 2013 Jingyan Liu, Wenying Liu, Li Xiaorong
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