Voltage Distribution on Transformer Windings Subjected to Lightning Strike Using State-Space Method

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dc.contributor.authorİlker Arı
dc.contributor.authorMehmet Salih Mamiş
dc.date.accessioned2025-02-24T13:22:29Z
dc.date.available2025-02-24T13:22:29Z
dc.date.issued2025-02-04
dc.departmentMeslek Yüksekokulları, Teknik Bilimler Meslek Yüksekokulu
dc.description.abstractTransient analysis in power systems is essential for identifying deficiencies in the system, as well as for the protection and design of equipment. Transients can arise from natural events or network operations; in either case, they have the potential to cause significant damage to transmission lines, protection devices, generators, or transformers. This study examines a 20 kA, 1.2/50 mu s lightning strike on a distributed-parameter transmission line connected to a power transformer. The voltage distributions across the winding sections on the neutral grounded high-voltage side of a disc-structured power transformer were obtained using the state-space method. An equivalent circuit for the state-space model was also developed in the Alternative Transients Program-Electromagnetic Transients Program (ATP-EMTP), and the results from both methods were compared. Both approaches revealed that the voltage waveforms in the transformer's winding sections were consistent, with the voltage distribution decreasing linearly. Additionally, the voltage-current waves reached the transformer with a specific delay, depending on the characteristics of the transmission line and the location of the lightning strike. The impact of an increase in the grounding resistance value on the high-voltage side of the transformer on voltage distribution and peak voltage levels was examined. The proposed method effectively captures the voltage-current behavior of the transmission line and transformer windings during transient conditions. It is concluded that the state-space method serves as a viable alternative for transient analysis in power systems and can enhance the design of protection equipment and winding insulation studies.
dc.identifier.citationArı, İ., & Mamiş, M. S. (2025). Voltage Distribution on Transformer Windings Subjected to Lightning Strike Using State-Space Method. Applied Sciences, 15(3), 1569.
dc.identifier.doi10.3390/app15031569
dc.identifier.issn2076-3417
dc.identifier.issue3
dc.identifier.scopus2-s2.0-85217617989
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.3390/app15031569
dc.identifier.urihttps://hdl.handle.net/20.500.12604/8531
dc.identifier.volume15
dc.identifier.wosWOS:001418395000001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorArı, İlker
dc.institutionauthorid0000-0002-1171-5533
dc.language.isoen
dc.publisherMDPI AG
dc.relation.ispartofApplied Sciences
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectlightning strike
dc.subjectpower transformer
dc.subjectstate-space method
dc.subjecttransient analysis
dc.subjecttransmission line
dc.subjectvoltage distribution
dc.titleVoltage Distribution on Transformer Windings Subjected to Lightning Strike Using State-Space Method
dc.typejournal-article
oaire.citation.issue3
oaire.citation.volume15

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