Influence of core window height on thermal characteristics of dry-type transformers
Elevated temperatures in transformer windings and cores pose a significant risk of damage to power transformers. The objective of this work is to analyze the influence of core window dimensions on the thermal efficiency of power transformers. Analytical approaches are limited in their ability to con...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X25000061 |
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| author | Kamran Dawood Seda Kul |
| author_facet | Kamran Dawood Seda Kul |
| author_sort | Kamran Dawood |
| collection | DOAJ |
| description | Elevated temperatures in transformer windings and cores pose a significant risk of damage to power transformers. The objective of this work is to analyze the influence of core window dimensions on the thermal efficiency of power transformers. Analytical approaches are limited in their ability to consider the impact of core window dimensions on the transformer's thermal behavior. Conversely, experimental methods are both expensive and time-consuming. To overcome these constraints, this work assesses and optimizes the temperature distribution in dry-type power transformers using finite element models, specifically examining the impact of the core window. The thermal model treats core and winding losses as sources of heat generation. Four different transformers, with varying heights of the transformer core window, have been modeled to assess the impact of window height on the thermal conditions of the transformers. The simulation findings indicate that variations in core window height have a significant impact on the transformer's thermal properties. By comparing the model's predictions of short-circuit impedance with experimental data, this study demonstrates the model's capability to reliably estimate parameters influenced by core window variations, thereby validating its usefulness. |
| format | Article |
| id | doaj-art-4ad30013f26e4ed4bbe63e9dbd4d1613 |
| institution | Kabale University |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-4ad30013f26e4ed4bbe63e9dbd4d16132025-02-02T05:27:20ZengElsevierCase Studies in Thermal Engineering2214-157X2025-02-0166105746Influence of core window height on thermal characteristics of dry-type transformersKamran Dawood0Seda Kul1Dept. of Research and Development, Astor Enerji, Türkiye; Corresponding author. Astor Enerji, ASO 2. ve 3. OSB, 2001 Cad No.3, Alcı Osb, Sincan, Ankara, 06909, Turkey.Electrical and Electronics Engineering Department, Karamanoglu Mehmetbey University, TürkiyeElevated temperatures in transformer windings and cores pose a significant risk of damage to power transformers. The objective of this work is to analyze the influence of core window dimensions on the thermal efficiency of power transformers. Analytical approaches are limited in their ability to consider the impact of core window dimensions on the transformer's thermal behavior. Conversely, experimental methods are both expensive and time-consuming. To overcome these constraints, this work assesses and optimizes the temperature distribution in dry-type power transformers using finite element models, specifically examining the impact of the core window. The thermal model treats core and winding losses as sources of heat generation. Four different transformers, with varying heights of the transformer core window, have been modeled to assess the impact of window height on the thermal conditions of the transformers. The simulation findings indicate that variations in core window height have a significant impact on the transformer's thermal properties. By comparing the model's predictions of short-circuit impedance with experimental data, this study demonstrates the model's capability to reliably estimate parameters influenced by core window variations, thereby validating its usefulness.http://www.sciencedirect.com/science/article/pii/S2214157X25000061Core windowDry-type transformerFinite element analysisThermal analysisPower transformer |
| spellingShingle | Kamran Dawood Seda Kul Influence of core window height on thermal characteristics of dry-type transformers Case Studies in Thermal Engineering Core window Dry-type transformer Finite element analysis Thermal analysis Power transformer |
| title | Influence of core window height on thermal characteristics of dry-type transformers |
| title_full | Influence of core window height on thermal characteristics of dry-type transformers |
| title_fullStr | Influence of core window height on thermal characteristics of dry-type transformers |
| title_full_unstemmed | Influence of core window height on thermal characteristics of dry-type transformers |
| title_short | Influence of core window height on thermal characteristics of dry-type transformers |
| title_sort | influence of core window height on thermal characteristics of dry type transformers |
| topic | Core window Dry-type transformer Finite element analysis Thermal analysis Power transformer |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X25000061 |
| work_keys_str_mv | AT kamrandawood influenceofcorewindowheightonthermalcharacteristicsofdrytypetransformers AT sedakul influenceofcorewindowheightonthermalcharacteristicsofdrytypetransformers |