Raising knowledge and developing technology for the design and deployment of high-performance power transformers immersed in biodegradable fluids “BIOTRAFO”

Effect of maghemite nanoparticles on insulation and cooling behaviour of a natural ester used in power transformers

Autori: Cristian Olmo, Inmaculada Fernandez, Agustin Santisteban, Cristina Mendez, Felix Ortiz, Alfredo Ortiz
Pubblicato in: 2019 IEEE 20th International Conference on Dielectric Liquids (ICDL), 2019, Pagina/e 1-4, ISBN 978-1-7281-1718-8
Editore: IEEE
DOI: 10.1109/icdl.2019.8796817

Transient Thermal Condition of Natural Oil-cooled Disc-type Winding

Autori: Saeed Khandan Siar, Stefan Tenbohlen
Pubblicato in: IEEE International Conference on Dielectric Liquids (ICDL), 2019, ISBN 978-1-7281-1718-8
Editore: IEEE
DOI: 10.1109/icdl.2019.8796572

Impact of Thermal Aging on The Conductivity of Kraft Paper Impregnated with Mineral Oil and Synthetic Ester

Autori: Abdelrahman M. Alshehawy; Shanika Matharage; Zhongdong Wang; Motoo Tsuchie; Masahiro Kozako; Masayuki Hikita
Pubblicato in: IEEE 22nd International Conference on Dielectric Liquids (ICDL), 2023, ISBN 979-8-3503-0217-2
Editore: IEEE
DOI: 10.1109/icdl59152.2023.10209322

Thermal Performance Study of Power Transformer Filled with Biodegradable Oil Using the Effective Approach for Electromagnetic and Computational Fluid Dynamics Models Multiple Coupling

Autori: Michal Stebel, Andrzej J. Nowak, Bartlomiej Melka, Michal Palacz, Michal Haida, Jakub Bodys, Jacek Smolka, Krzysztof Kubiczek, Pawel Lasek, Mariusz Stepien, Gustavo Rios Rodriguez, Luciano Garelli, Mario Storti, Francisco Pessolani, Mauro Amadei, Daniel Granata
Pubblicato in: IEEE 21st International Conference on Dielectric Liquids (ICDL), 2021
Editore: ABMEC-IACM
DOI: 10.1109/icdl49583.2022.9830957

Study of the Thermal Degradation of Different Insulating Papers Impregnated with a Natural Ester

Autori: Cristina Méndez Gutiérrez, Cristian Olmo Salas, Carlos Javier Renedo Estébanez, Masahiro Kozako, Masayuki Hikita, Alfredo Ortiz Fernández
Pubblicato in: International Conference on Condition Monitoring and Diagnosis (CMD), 2023
Editore: IEEE
DOI: 10.23919/cmd54214.2022.9991628

100MVA Non-Uniform Heat Losses Study

Autori: Ramazan Altay, Pedro Jose Quintanilla, Alfredo Ortiz, Fernando Delgado, Ahmet Kerem Koseoglu
Pubblicato in: 9th International Conference on Condition Monitoring and Diagnosis (CMD), 2022, ISBN 978-4-88686-431-4
Editore: IEEE
DOI: 10.23919/cmd54214.2022.9991711

Application of biodegradable fluids as liquid insulation for distribution and power transformers

Autori: Belen Garcia, Alfredo Ortiz, Carlos Renedo, Juan Carlos Burgos, Diego Garcia Gomez, Daniel Perez Rosa
Pubblicato in: 2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe), 2020, Pagina/e 1-6, ISBN 978-1-7281-7455-6
Editore: IEEE
DOI: 10.1109/eeeic/icpseurope49358.2020.9160569

Coupled electromagnetic and thermal models of the 315 kVA distribution transformer for mineral and biodegradable oils in different climate conditions

Autori: Bartłomiej Melka, Michał Palacz, Michał Stebel, Jakub Bodys, Michał Haida, Luciano Garelli, Gustavo Rios, Mario Storti, Krzysztof Kubiczek, Pawel Lasek, Mariusz Stepien, Francisco Pessolani, Mauro Amadei, Daniel Granata, Jacek Smołka.
Pubblicato in: International Conference on Contemporary Problems of Thermal Engineering (CPOTE 2020), 2020
Editore: IEEE

Thermal Modeling of a Power Transformer with Different Dielectric Liquids

Autori: Agustín Santisteban, Félix Ortiz , Carlos J. Renedo, Severiano Perez, Cristina Méndez and Cristina Fernández-Diego.
Pubblicato in: Proceedings XI National and II International Engineering Thermodynamics Congress (11-CNIT), 2019
Editore: UCLM

Effect of Moisture Content on Temperature Characteristics of Dielectric Breakdown Strength of Biodegradable Ester Oils

Autori: Takahiro Okamoto, Daigo Okumura, Kyouhei Hamasuna, Motoo Tsuchie, Masahiro Kozako Masayuki Hikita, Mrutyunjay Maharana, Cristian Olmo Salas
Pubblicato in: 2023, ISBN 979-8-3503-0217-2
Editore: IEEE
DOI: 10.1109/icdl59152.2023.10209351

Coupled CFD and electromagnetic analysis of an ONAN distribution transformer cooled with mineral oil and biodegradable esters

Autori: Luciano Garelli, Gustavo Rios, Mario Storti, Francisco Pessolani, Mauro Amadei, Pawel Lasek, Krzysztof Kubiczek, Mariusz Stepien, Michał Stebel, Bartłomiej Melka, Jakub Bodys, Michał Haida, Michał Palacz, Jacek Smołka.
Pubblicato in: International Conference on Dielectrics (ICD 2020), 2020, Pagina/e 766-769, ISBN 978-1-7281-8983-3
Editore: IEEE
DOI: 10.1109/icd46958.2020.9341955

Comparison of the Effect of Thermal Aging on Dielectric Properties of Vegetable Oils and Impregnated Kraft Paper

Autori: Cristina Méndez, Hikaru Araki, Taichi Yamada, Motoo Tsuchie, Masahiro Kozako, Masayuki Hikita, Alfredo Ortiz.
Pubblicato in: International Conference on Dielectrics (ICD 2020), 2020, Pagina/e 732-735, ISBN 978-1-7281-8983-3
Editore: IEEE
DOI: 10.1109/icd46958.2020.9341997

Influence of Water Contents on Ester Liquids Partial Discharge Inception Voltage

Autori: L. Calcara; Alan Sbravati; Kevin Rapp; Massimo Pompili
Pubblicato in: 2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 2021, Pagina/e 235-238, ISBN 978-1-7281-9572-8
Editore: IEEE
DOI: 10.1109/ceidp49254.2020.9437441

CFD study of the impact of the deviation on the mass flow inlet on winding hot-spot temperature of a power transformer using mineral and ester oils

Autori: A. Santisteban; F. Ortiz; A.K. Koseoglu; R. Altay; C.J. Renedo; A. Ortiz
Pubblicato in: IEEE 21st International Conference on Dielectric Liquids (ICDL), Numero 2, 2022, Pagina/e 228-231
Editore: IEEE
DOI: 10.1109/icdl49583.2022.9830976

A comparative study on the dielectric properties of mineral oils and natural esters

Autori: Andrés Montero, Diego García, Belén García, Juan Carlos Burgos
Pubblicato in: IEEE International Conference on Environment and Electrical Engineering and 2023 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe), 2023, ISBN 979-8-3503-4743-2
Editore: IEEE
DOI: 10.1109/eeeic/icpseurope57605.2023.10194693

CFD analyses of a test platform with different fluids for use in transformers.

Autori: Pedro J. Quintanilla, Ramazan Altay, Agustín Santisteban, Alfredo Ortiz, Ahmet K. Koseoglu
Pubblicato in: 7th International Advanced Research Workshop on Transformers (ARWtr), 2022, ISBN 978-84-09-45157-9
Editore: IEEE
DOI: 10.23919/arwtr54586.2022.9959953

Impregnation processes of insulation rigid components of cellulose in synthetic ester and mineral oil

Autori: Alfredo Ortiz, Jaime Sanz, Severiano Perez, Cristina Fernandez-Diego, Ernesto Ivan Diestre, Ismael Vela
Pubblicato in: 2019 IEEE 20th International Conference on Dielectric Liquids (ICDL), 2019, Pagina/e 1-4, ISBN 978-1-7281-1718-8
Editore: IEEE
DOI: 10.1109/icdl.2019.8796739

Cooling Performance Of Different Dielectric Fluids Containing Nanoparticles in a Transformer Winding

Autori: Agustin Santisteban, Cristian Olmo, Cristina Mendez, Fernando Delgado, Carlos J. Renedo, Felix Ortiz
Pubblicato in: 2019 IEEE 20th International Conference on Dielectric Liquids (ICDL), 2019, Pagina/e 1-4, ISBN 978-1-7281-1718-8
Editore: IEEE
DOI: 10.1109/icdl.2019.8796516

Numerical and experimental evaluation of dielectric properties of thermally aged insulating paper used in power transformers

Autori: Mónica Díaz, Cristina Méndez, M. Díaz, Cristian Olmo, Carlos Vila and Fernando Delgado
Pubblicato in: International Conference on Dielectrics, 2022, Pagina/e 809-812
Editore: IEEE
DOI: 10.1109/icd53806.2022.9863446

Dielectric and Mechanical Assessment of Kraft and Diamond Dotted Paper Aged with Commercial Vegetable Oil

Autori: Jordà Franquet, Inmaculada Fernández, Alfredo Ortiz
Pubblicato in: International Conference on Dielectrics (ICD 2020), 2020, Pagina/e 696-699, ISBN 978-1-7281-8983-3
Editore: IEEE
DOI: 10.1109/icd46958.2020.9341857

Application of Multiscale Calculation of Heat Transfer in Electric Transformer Winding Channels

Autori: Mario A. Storti, Jonathan Dorella, Luciano Garelli, and Gustavo A. Ríos Rodríguez.
Pubblicato in: Proceedings of ENIEF 2019, 2019
Editore: Asociación argentina de mecánica computacional

Numerical Investigation on the Influence of Clack-bands on Lifetime of Disc-type Windings

Autori: Saeed Khandan Siar, Stefan Tenbohlen.
Pubblicato in: International Conference on Dielectrics (ICD 2020), 2020, Pagina/e 700-703, ISBN 978-1-7281-8983-3
Editore: IEEE
DOI: 10.1109/icd46958.2020.9342026

Ageing of Crepe Paper in Mineral Oil and Natural Ester

Autori: Cristina Fernández-Diego, Alfredo Ortiz, Inmaculada Fernández, Carlos J. Renedo, Fernando Delgado.
Pubblicato in: International Symposium on Electrical Insulating Materials (ISEIM 2020), 2020, Pagina/e 217-220, ISBN 9784886864185
Editore: IEEE

Investigation of Operational and Design Parameters Affecting the Thermal Behaviour of Disc-Type Winding.

Autori: Saeed Khandan Siar, Stefan Tenbohlen
Pubblicato in: Conference: International Symposium on High Voltage Engineering _ ISH, 2019, ISBN 978-3-030-31679-2
Editore: Springer, Cham
DOI: 10.1007/978-3-030-31680-8_25

Investigation of the Degradation of a Wood Pulp-Cotton Presspaper in Different Biodegradable Oils

Autori: Cristina Mendez Gutierrez; Jaime Sanz Asensio; Cristian Olmo Salas; Fernando Delgado; Pedro Quintanilla Cavia; Riccardo Maina; Alfredo Ortiz Fernandez
Pubblicato in: IEEE 21st International Conference on Dielectric Liquids (ICDL), Sevilla, 2022, 232-235, Numero 1, 2022, Pagina/e 232-235
Editore: IEEE
DOI: 10.1109/icdl49583.2022.9830979

A statistical analysis of predictive maintenance tests on synthetic ester-filled railway transformers

Autori: Elmer Sorrentino, Belén García, Domingo Urquiza, Diego F. García Gómez
Pubblicato in: International Conference on Environment and Electrical Engineering and 2023 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe), 2022, ISBN 979-8-3503-4743-2
Editore: IEEE
DOI: 10.1109/eeeic/icpseurope57605.2023.10194760

Kraft And Diamond Dotted Paper Thermally Aged In Mineral Oil And Natural Ester: Mechanical Characterisation

Autori: Cristina Fernandez-Diego, Alfredo Ortiz, Isidro A. Carrascal, Inmaculada Fernandez, Fernando Delgado, Cristian Olmo
Pubblicato in: 2019 IEEE 20th International Conference on Dielectric Liquids (ICDL), 2019, Pagina/e 1-4, ISBN 978-1-7281-1718-8
Editore: IEEE
DOI: 10.1109/ICDL.2019.8796691

Analysis of Thermal-Electrical Modelling of a Distribution Transformer using Ansys and Code_Saturne

Autori: Luciano Garelli, Gustavo A. Ríos Rodríguez, Paweł Lasek, Krzysztof Kubiczek, Mariusz Stepien and Mario A. Storti.
Pubblicato in: Proceedings of ENIEF 2019, 2019
Editore: Asociación argentina de mecánica computacional

Adaptation of the impregnation conditions of cellulosic transformer solids to the use of natural esters

Autori: Sandra Tresgallo, Jaime Sanz Asensio, Cristian Olmo Salas, Cristina Méndez Gutiérrez, Pedro J. Quintanilla Cavia, Diego F. García, Carlos Vila
Pubblicato in: International Conference on Dielectrics (ICD), 2022, Pagina/e 397-400
Editore: IEEE
DOI: 10.1109/icd53806.2022.9863477

Analysis of the Impregnation Process of Cellulosic Materials by Ester-Based Insulating Liquids

Autori: Oasis Sancibrian, Carlos Vila, Inmaculada Fernandez, Cristian Olmo, Alfredo Ortiz
Pubblicato in: 2019 6th International Advanced Research Workshop on Transformers (ARWtr), 2019, Pagina/e 59-63, ISBN 978-84-09-11743-7
Editore: IEEE
DOI: 10.23919/arwtr.2019.8930182

Investigation of saturation moisture in the PD behavior in the biodegradable ester oil

Autori: Mrutyunjay Maharana, Kyouhei Hamasuna, Masahiro Kozako, Masayuki Hikita, Motoo Tsuchie, Kai Wu
Pubblicato in: International Conference on Condition Monitoring and Diagnosis (CMD), 2023, ISBN 978-4-88686-431-4
Editore: IEEE
DOI: 10.23919/cmd54214.2022.9991312

Performance analysis of natural, synthetic and mineral oil in a 100 MVA power transformer

Autori: R. Altay, A. Santisteban, C. Olmo, F. Delgado, Carlos J. Renedo, A.Kerem Köseoğlu, A. Ortiz.
Pubblicato in: International Conference on Dielectrics (ICD 2020, 2020, Pagina/e 770-773, ISBN 978-1-7281-8983-3
Editore: IEEE
DOI: 10.1109/icd46958.2020.9341919

Effect of the Thermal Characteristics of Dielectric Fluids on the Loading Capacity of a Power Transformer

Autori: D. Matia; A. Santisteban; F. Ortiz; P.J. Quintanilla; D.F. Garcia; A. Ortiz
Pubblicato in: IEEE 21st International Conference on Dielectric Liquids (ICDL), Sevilla, 2022, 244-247, Numero 2, 2022, Pagina/e 1-4
Editore: IEEE
DOI: 10.1109/icdl49583.2022.9830933

Experimental Study on the Insulation Permittivity of Transformers Retrofilled with Natural Esters

Autori: Andrés Montero, Belén García de Burgos, Juan D. Mina-Casaran, Juan C. Burgos
Pubblicato in: Proceedings of the International Conference on Dielectric Liquids (ICDL, 2022, Pagina/e 1-4
Editore: IEEE
DOI: 10.1109/icdl49583.2022.9830963

Determination of Heat Generation in Power Transformers by Electromagnetic Harmonic FEM Analysis

Autori: Pawel Lasek, Krzysztof Kubiczek, Luciano Garelli, Gustavo A. Ríos Rodríguez, Mariusz Stepien and Mario A. Storti.
Pubblicato in: Proceedings of ENIEF 2019, 2019
Editore: Asociación argentina de mecánica computacional

Thermal analysis of a low voltage winding of a power transformer working with natural ester and mineral oil

Autori: Agustín Santisteban, Jonathan Dorella, Luciano Garelli, Mario Storti, Fernando Delgado, Alfredo Ortiz.
Pubblicato in: International Conference on Contemporary Problems of Thermal Engineering (CPOTE 2020), 2020
Editore: IEEE

Measurement and analysis of power losses in sintered cores for power electronic devices in renewable energy systems

Autori: Pawel Lasek, Mariusz Stepien.
Pubblicato in: International Conference on Contemporary Problems of Thermal Engineering (CPOTE 2020), 2020
Editore: IEEE

Effect of Magnetic and Non-magnetic Nanoparticles on Insulation and Cooling Behaviour of a Natural Ester for Power Transformers

Autori: Cristina Méndez, Inmaculada Fernández, Alfredo Ortiz, Félix Ortiz, Cristian Olmo, Agustín Santisteban, Fernando Delgado, Carlos J. Renedo.
Pubblicato in: International Symposium on Electrical Insulating Materials (ISEIM 2020), 2020
Editore: IEEE

Numerical study of 8.5 MVA disk-type power transformer cooled by biodegradable esters using coupled CFD-CFD and CFD-EMAG modelling

Autori: Michał Stebel, Michał Palacz, Bartłomiej Melka, Jakub Bodys, Luciano Garelli, Gustavo Rios, Krzysztof Kubiczek, Pawel Lasek, Mariusz Stepien, Michał Haida, Francisco Pessolani, Mauro Amadei, Daniel Granata, Mario Storti, Jacek Smołka.
Pubblicato in: International Conference on Contemporary Problems of Thermal Engineering (CPOTE 2020), 2020
Editore: IEEE

Maghemite Nanofluid Based on Natural Ester: Cooling and Insulation Properties Assessment

Autori: Cristian Olmo, Cristina Mendez, Felix Ortiz, Fernando Delgado, Rafael Valiente, Peter Werle
Pubblicato in: IEEE Access, Numero 7, 2019, Pagina/e 145851-145860, ISSN 2169-3536
Editore: Institute of Electrical and Electronics Engineers Inc.
DOI: 10.1109/access.2019.2945547

Effective Cooling of a Distribution Transformer Using Biodegradable Oils at Different Climate Conditions

Autori: Bartlomiej Melka; Michal Stebel; Jakub Bodys; Krzysztof Kubiczek; Pawel Lasek; Gustavo Rios Rodriguez; Luciano Garelli; Michal Haida; Michal Palacz; Andrzej J. Nowak; Francisco Pessolani; Mauro Amadei; Mario Storti; Mariusz Stepien; Jacek Smolka
Pubblicato in: IEEE Transactions on Dielectrics and Electrical Insulation, Numero 30, 2023, Pagina/e 1557-1565, ISSN 1070-9878
Editore: Institute of Electrical and Electronics Engineers
DOI: 10.1109/tdei.2023.3282561

Use Performance and Management of Biodegradable Fluids as Transformer Insulation

Autori: Belen Garcia; Alfredo Ortiz; Carlos J. Renedo; Diego F. García; Andrés Montero
Pubblicato in: Energies, Numero 14, 2021, ISSN 1996-1073
Editore: Multidisciplinary Digital Publishing Institute (MDPI)
DOI: 10.3390/en14196357

Thermal Modelling of a Power Transformer Disc Type Winding Immersed in Mineral and Ester-Based Oils Using Network Models and CFD

Autori: Agustin Santisteban, Alejandro Piquero, Felix Ortiz, Fernando Delgado, Alfredo Ortiz
Pubblicato in: IEEE Access, Numero 7, 2019, Pagina/e 174651-174661, ISSN 2169-3536
Editore: Institute of Electrical and Electronics Engineers Inc.
DOI: 10.1109/access.2019.2957171

Dielectric design of ester-filled power transformers: AC stress analysis

Autori: Andres Montero Romero; Belen Garcia; Juan Carlos Burgos; Carlos Gonzalez-Garcia
Pubblicato in: IEEE Transactions on Power Delivery, Numero 1, 2022, Pagina/e 2403-2412, ISSN 0885-8977
Editore: Institute of Electrical and Electronics Engineers
DOI: 10.1109/tpwrd.2022.3145880

Electric field distribution in natural-ester retrofilled transformers under AC stress

Autori: Andrés Montero; Belén García; Juan Carlos Burgos
Pubblicato in: International Journal of Electrical Power & Energy Systems, Numero 155, 2024, ISSN 0142-0615
Editore: Elsevier BV
DOI: 10.1016/j.ijepes.2023.109549

Impact of the Use of Vegetable Oil on the Mechanical Failure of the Cellulosic Insulation of Continuously Transposed Conductors in Power Transformers

Autori: Carmela Oria, Cristina Méndez, Isidro Carrascal, Alfredo Ortiz and Diego Ferreño
Pubblicato in: Transactions on Dielectrics and Electrical Insulation, Numero 29, 2022, Pagina/e 607-613, ISSN 1070-9878
Editore: Institute of Electrical and Electronics Engineers
DOI: 10.1109/tdei.2022.3157936

Measurement and Analysis of Power Losses in Sintered Cores for Power Electronic Devices in Renewable Energy Systems

Autori: Pawel Lasek, Mariusz Stepien
Pubblicato in: Journal of Energy Resources Technology, Transactions of the ASME, Numero 144, 2022, ISSN 0195-0738
Editore: ASME
DOI: 10.1115/1.4052791

Titania Nanofluids Based on Natural Ester: Cooling and Insulation Properties Assessment

Autori: Cristian Olmo, Cristina Méndez, Félix Ortiz, Fernando Delgado, Alfredo Ortiz
Pubblicato in: Nanomaterials, Numero 10/4, 2020, Pagina/e 603, ISSN 2079-4991
Editore: MDPI
DOI: 10.3390/nano10040603

Thermal analysis of 8.5 MVA disk-type power transformer cooled by biodegradable ester oil working in ONAN mode by using advanced EMAG–CFD–CFD coupling

Autori: Michal Stebel, Krzysztof Kubiczek, Gustavo Adolfo Rios Rodriguez, Michal Palacz, Luciano Garelli, Bartlomiej Melka, Michal Haida, Jakub Bodys, Andrzej J. Nowak, Pawel Lasek, Mariusz Stepien, Francisco Pessolani, Mauro Amadei, Daniel Granata, Mario Alberto Storti, Jacek Smolka
Pubblicato in: International Journal of Electrical Power and Energy Systems, Numero 136, 2022, Pagina/e 1-19, ISSN 0142-0615
Editore: Elsevier BV
DOI: 10.1016/j.ijepes.2021.107737

A New Method for the Quantification of the Remaining Mineral Oil in Natural-Ester Retrofilled Transformers

Autori: Andrés Montero, Belén García, Juan Carlos Cabanelas
Pubblicato in: Electrical Insulation Magazine, Numero 39, 2023, Pagina/e 17-25, ISSN 0883-7554
Editore: Institute of Electrical and Electronics Engineers
DOI: 10.1109/mei.2023.10220244

Power transformer temperature–moisture dynamics modeling: an experimental validation

Autori: W. Correa, D.F. García, B. García de Burgos
Pubblicato in: Electrical Engineering, 2022, ISSN 0948-7921
Editore: Springer Verlag
DOI: 10.1007/s00202-022-01696-0

Thermo-magnetic-fluid dynamics analysis of an ONAN distribution transformer cooled with mineral oil and biodegradable esters

Autori: L.Garelli G.A.Ríos Rodriguez K.Kubiczek P.Lasek M.Stepien J.Smolka M.Storti F.Pessolani M.Amadei
Pubblicato in: Thermal Science and Engineering Progress, Numero 23, 2021, ISSN 2451-9049
Editore: Elsevier BV
DOI: 10.1016/j.tsep.2021.100861

Kinetic assessment of mechanical properties of a cellulose board aged in mineral oil and synthetic ester

Autori: Cristina Fernández-Diego,Alfredo Ortiz, Isidro A. Carrascal, Inmaculada Fernández, Carlos J. Renedo
Pubblicato in: Polymers, Numero 13, 2021, Pagina/e 4150, ISSN 2073-4360
Editore: MDPI
DOI: 10.3390/polym13234150

Use of Alternative Fluids in Very High-Power Transformers: Experimental and Numerical Thermal Studies

Autori: Ramazan Altay; Agustín Santisteban; Cristian Olmo; Carlos J. Renedo; Alfredo Ortiz Fernández; Felix Ortiz; Fernando Delgado
Pubblicato in: IEEE Access, Numero 8, 2020, Pagina/e 207054 - 207062, ISSN 2169-3536
Editore: Institute of Electrical and Electronics Engineers Inc.
DOI: 10.1109/access.2020.3037672

Understanding the Ageing Performance of Alternative Dielectric Fluids

Autori: Cristina Mendez Gutierrez; Alfredo Ortiz Fernandez; Carlos Javier Renedo Estebanez; Cristian Olmo Salas; Riccardo Maina
Pubblicato in: IEEE Access, Numero 11, 2023, Pagina/e 9656 - 9671, ISSN 2169-3536
Editore: Institute of Electrical and Electronics Engineers Inc.
DOI: 10.1109/access.2023.3239895

A Brief Review of the Impregnation Process with Dielectric Fluids of Cellulosic Materials Used in Electric Power Transformers

Autori: Jaime Sanz, Carlos J. Renedo, Alfredo Ortiz, Pedro J. Quintanilla, Félix Ortiz, Diego F. García
Pubblicato in: Energies, Numero 16, 2023, Pagina/e 3673, ISSN 1996-1073
Editore: Multidisciplinary Digital Publishing Institute (MDPI)
DOI: 10.3390/en16093673

Study on the Contamination Rate of Mineral Oil in Natural-Ester Retrofilled Transformers

Autori: Andrés Montero, Belén García, Juan Carlos Burgos
Pubblicato in: Transactions on Dielectrics and Electrical Insulation, Numero 30, 2023, Pagina/e 1641-1648, ISSN 1070-9878
Editore: Institute of Electrical and Electronics Engineers
DOI: 10.1109/tdei.2023.3298314

Effect of TiO2 and ZnO Nanoparticles on the Performance of Dielectric Nanofluids Based on Vegetable Esters During Their Aging

Autori: Inmaculada Fernández, Rafael Valiente, Félix Ortiz, Carlos J. Renedo, Alfredo Ortiz
Pubblicato in: Nanomaterials, Numero 10/4, 2020, Pagina/e 692, ISSN 2079-4991
Editore: MDPI
DOI: 10.3390/nano10040692

Moisture dynamics in natural-ester filled transformers

Autori: Rafael Villarroel, Belén García de Burgos, Diego Fernando García
Pubblicato in: International Journal of Electrical Power & Energy Systems, Numero 124, 2021, Pagina/e 106172, ISSN 0142-0615
Editore: Elsevier BV
DOI: 10.1016/j.ijepes.2020.106172

Compatibility of Esters with Cellulosic Insulation Materials

Autori: Cristina Méndez Gutiérrez, Carmela Oria Alonso, Cristina Fernández Diego, Inmaculada Fernández Diego, Cristian Olmo Salas, Ahmet Kerem Köseoğlu, Ramazan Altay, Alfredo Ortiz Fernández
Pubblicato in: Alternative Liquid Dielectrics for High Voltage Transformer Insulation Systems: Performance Analysis and Applications, 2022, Pagina/e 43-84, ISBN 9781119800187
Editore: Wiley-IEEE
DOI: 10.1002/9781119800194.ch3

Analysis of transformer insulation systems with dielectric nanofluid

Autori: Daniel Pérez Rosa
Pubblicato in: 2022
Editore: Universidad Carlos III Madrid

Evolución de las propiedades térmicas y dieléctricas de un aceite vegetal de transformador mejorado con nanopartículas

Autori: Cristian Olmo Salas
Pubblicato in: 2020
Editore: Universidad de Cantabria

Análisis de la degradación de los materiales aislantes en transformadores inmersos en líquidos biodegradables

Autori: Cristina Méndez Gutiérrez
Pubblicato in: 2023
Editore: Universidad de Cantabria

Application of nanodielectric fluids for the improvement of the insulation system of power transformers

Autori: Victor Antonio Primo Cano
Pubblicato in: 2019
Editore: Universidad Carlos III Madrid

Life management of transformers retro-filled with biodegradable insulating fluids

Autori: Andrés Montero Romero
Pubblicato in: 2023
Editore: Universidad Carlos III Madrid

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