Performance analysis of natural, synthetic and mineral oil in a 100 MVA power transformer
| Autor: | Ramazan Altay, A.Kerem Koseoglu, Fernando Delgado, Alfredo Ortiz, Agustín Santisteban, Cristian Olmo, Carlos J. Renedo |
|---|---|
| Přispěvatelé: | Universidad de Cantabria |
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Petroleum engineering 020209 energy 02 engineering and technology Cooling capacity 7. Clean energy 01 natural sciences law.invention Power rating 13. Climate action Electromagnetic coil law Insulation system 0103 physical sciences 0202 electrical engineering electronic engineering information engineering medicine Water cooling Mineral oil Transformer Low voltage medicine.drug |
| Zdroj: | 3rd IEEE International Conference on Dielectrics (ICD), Valencia, 2020, 770-773 UCrea Repositorio Abierto de la Universidad de Cantabria Universidad de Cantabria (UC) 2020 IEEE 3rd International Conference on Dielectrics (ICD) International Conference on Dielectrics (ICD 2020 |
| Popis: | The power transformer lifespan depends on the dielectric capacity of its insulation system, mainly of the paper. Integrity of this material depends significantly on the cooling capacity of the oil used to cool it. Currently, ester-based fluids are being researched with the intention to substitute the traditional cooling liquid in power transformers, the mineral oil. Here, cooling capacity of two different ester-based fluids, a synthetic and anatural esters, is compared with that of a mineral oil. To carry out this task, CFD results of a low voltage winding of a 100 MVA power transformer jointly with the experimental ones get from a heat-run test done in this transformer are used. This winding has an axial cooling system in ON regime. As a result of this study, it can be inferred that alternative liquids could be used with high load levels (rated power or higher) since no significant changes in the temperatures distribution of the winding cooled with these fluids in comparison with that get with mineral oil are appreciated. The authors of this research wish to thank for its financial support: - The European Union by means of the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 823969. This grant fund the European project Biotrafo: raising knowledge and developing technology for the design and deployment of high performance power transformers immersed in biodegradable fluids; European Commission, h2020-mscarise-2018- 823969; 2019-21 - The Spanish Ministry of Science, Innovation and Universities by means of the National Research Project Improvement of Insulation Systems of Transformers through Dielectric Nanofluids (DPI2015-71219-C2-1- R). - The Universities and Reseach Council of the Government of Cantabria by means of the grant Fluidos biodegradables en transformadores eléctricos de potencia: impregnación de dieléctricos sólidos y modelado térmico con THNM, VP32, 2019-2. |
| Databáze: | OpenAIRE |
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