Results 21 to 30 of about 10,677,552 (246)
An aspect of transformer inrush current
Journal of Energy - Energija, 2022 Paper analyzes a sparking phenomena that were observed on power transformers during their first few energizing. Sparks occurred on the flange between tank cover and tank side, in spite of the fact that a jumper (copper link) was used. The phenomenon was observed on transformers from different manufacturers, with various transformer ratings, three or ...
Šulc, Ivan +2 more
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Damping the Inrush Current for Current Transformer [PDF]
Proceedings of the Proceedings of the 1st International Multi-Disciplinary Conference Theme: Sustainable Development and Smart Planning, IMDC-SDSP 2020, Cyperspace, 28-30 June 2020, 2020 The inrush current is a highly asymmetric transient magnetizing current resulting from saturation of the core of the transformer caused by excessive growth of magnetic flux in one direction only. The suggested strategy to damp the inrush current is adding an inductor in parallel with the circuit breaker (C.B., which has a very low resistance when it is
Yousif Alyounus +2 more
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Transformer Inrush Current Mitigation Techniques for Grid-Forming Inverters Dominated Grids
IEEE Transactions on Power Delivery, 2023 The use of inverters-based resources (IBRs) is rising rapidly in power networks due to increased renewable energy penetration. This requires revisiting of classical network operation standards.
Abdulrahman Alassi +3 more
semanticscholar +1 more source
IEEE Access, 2021 When an electromagnetic transient occurs in a transformer, certain parts of the winding will be over stressed internally, which in severe cases will lead to the destruction of the winding insulation.
Chenchen Zhang +3 more
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A Soft-Start-Based Method for Active Suppression of Magnetizing Inrush Current in Transformers
Electronics, 2023 The occurrence of high-amplitude magnetizing inrush current during the energization of a transformer without load poses significant challenges to the stable operation of both the transformer and the power grid, potentially leading to malfunctions in ...
Chunyan Li +3 more
semanticscholar +1 more source
Protection and Control of Modern Power Systems, 2023 The automatic reclosing strategy is an effective measure to improve the reliability of a distribution network. It can quickly clear instantaneous faults in the grid.
Weijie Xie +5 more
semanticscholar +1 more source
A Review On Magnetizing Inrush Current. [PDF]
International Journal of Advanced Research, 2018 Magnetizinginrush current is a current which occurs in transformer during switchingon..The main objective is to examine the cause and effects of magnetizing inrush current on transformer. The paper also suggests measures to remedy dangers posed by magnetizing inrush current in transformers.
Zai, Asad +2 more
openaire +2 more sources
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2022 To support the electric power grid, some grid-connected converters are required to ride through abnormal grid conditions, including voltage disturbances.
Haiguo Li +4 more
semanticscholar +1 more source
Parameter estimation of electric power transformers using Coyote Optimization Algorithm with experimental verification [PDF]
, 2020 In this work, the Coyote Optimization Algorithm (COA) is implemented for estimating the parameters of single and three-phase power transformers. The estimation process is employed on the basis of the manufacturer's operation reports.
Abaza, Amlak +4 more
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Pre-energize Analysis on 3 Phase Transformer by Considering Each Phase Flux
JAREE (Journal on Advanced Research in Electrical Engineering), 2019 Inrush current is a transient phenomenon that occurs when a transformer is first energized to a voltage source at no-load conditions. It causes a very high inrush current.
Hadwim Septiawan
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