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ALFREDO ORTIZ FERNANDEZ

Publications
100
Projects
25
Thesis
8
Datasets
4

uiri

alfredo.ortiz@unican.es

E.T.S. de Ingenieros Industriales y de Telecomunicación. Avda. de los Castros, 46. 39005 Santander

Catedrático de Universidad

Doctor por la Universidad de Cantabria

Grupo De Investigación En Transformadores Eléctricos De Potencia (GITEP)

DEPARTAMENTO DE INGENIERÍA ELÉCTRICA Y ENERGÉTICA

Specialty areas: INGENIERIA ELECTRICA

Identifiers

View teaching activity

Other names in publications

Ortiz, Alfrede
Ortiz, A.
Ortiz Fernandez, Alfredo
Ortiz, Alfredo
Ortiz-Fernández, Alfredo
Fernandez, Alfredo Ortiz

Publications Projects Supervised Theses Datasets

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100 results

1 of 5

Analysing the suitability of using different biodegradable fluids for power transformers with thermally upgraded paper

Article

Sustainability (Switzerland), 2024, 16(8), 3259

Authorship: CRISTINA MENDEZ GUTIERREZ, CRISTIAN OLMO SALAS, ISMAEL ANTOLIN MAESTRE, ALFREDO ORTIZ FERNANDEZ, CARLOS JAVIER RENEDO ESTEBANEZ

13/04/2024

Understanding the ageing performance of alternative dielectric fluids

Article

IEEE Access, 2023, 11, 9656 - 9671

Authorship: CRISTINA MENDEZ GUTIERREZ, ALFREDO ORTIZ FERNANDEZ, CARLOS JAVIER RENEDO ESTEBANEZ, CRISTIAN OLMO SALAS, RICCARDO MAINA

01/02/2023

A brief review of the impregnation process with dielectric fluids of cellulosic materials used in electric power transformers

Article

Energies, 2023, 16(9), 3673

Authorship: JAIME SANZ ASENSIO, CARLOS JAVIER RENEDO ESTEBANEZ, ALFREDO ORTIZ FERNANDEZ, PEDRO JOSE QUINTANILLA CAVIA, FELIX ORTIZ FERNANDEZ, DIEGO FERNANDO GARCIA GOMEZ

25/04/2023

Degradation of the compression strength of spacers made of high-density pressboard used in power transformers under the influence of thermal ageing

Article

Cellulose, 2023, 30(10), 6539-6558

Authorship: CARMELA ORIA ALONSO, CRISTINA MENDEZ GUTIERREZ, ISIDRO ALFONSO CARRASCAL VAQUERO, DIEGO FERREÑO BLANCO, ALFREDO ORTIZ FERNANDEZ

01/07/2023

Experimental dataset on the compressive mechanical properties of high-density pressboard used in power transformers spacers

Article

Data in Brief, 2023, 50, 109471 - (CORRIGENDUM), 2023, 50, 109498

Authorship: CARMELA ORIA ALONSO, ISIDRO ALFONSO CARRASCAL VAQUERO, DIEGO FERREÑO BLANCO, CRISTINA MENDEZ GUTIERREZ, ALFREDO ORTIZ FERNANDEZ

01/10/2023

El inglés como medio de instrucción en la Universidad de Cantabria: percepción del alumnado y profesorado

Conference object

Libro de actas XV Jornadas de Innovación Docente e Investigación Educativa de la Universidad de Zaragoza

Authorship: CARMELA ORIA ALONSO, LUCILA MARIA PEREZ FERNANDEZ, ALFREDO ORTIZ FERNANDEZ

2023

The impact of thermal ageing on the compression strength of radial spacers in power transformers

Conference object

2023 The 5th International Conference on Power and Energy Technology (ICPET 2023), July 27-30, 2023, Tianjin, China

Authorship: CARMELA ORIA ALONSO, ALFREDO ORTIZ FERNANDEZ, CRISTINA MENDEZ GUTIERREZ, ISIDRO ALFONSO CARRASCAL VAQUERO, DIEGO FERREÑO BLANCO

2023

Impact of the use of vegetable oil on the mechanical failure of the cellulosic insulation of continuously transposed conductors in power transformers

Article

IEEE Transactions on Dielectrics and Electrical Insulation, 2022, 29(2), 607-613

Authorship: CARMELA ORIA ALONSO, CRISTINA MENDEZ GUTIERREZ, ISIDRO ALFONSO CARRASCAL VAQUERO, ALFREDO ORTIZ FERNANDEZ, DIEGO FERREÑO BLANCO

01/04/2022

Mineral and ester nanofluids as dielectric cooling liquid for power transformers

Article

Nanomaterials, 2022, 12(15), 2723

Authorship: CRISTIAN OLMO SALAS, CRISTINA MENDEZ GUTIERREZ, PEDRO JOSE QUINTANILLA CAVIA, FELIX ORTIZ FERNANDEZ, CARLOS JAVIER RENEDO ESTEBANEZ, ALFREDO ORTIZ FERNANDEZ

08/08/2022

Compatibility of esters with cellulosic insulation materials

Book part

Alternative liquid dielectrics for high voltage transformer insulation systems: performance analysis and applications

Authorship: CRISTINA MENDEZ GUTIERREZ, CARMELA ORIA ALONSO, CRISTINA FERNANDEZ DIEGO, INMACULADA FERNANDEZ DIEGO, CRISTIAN OLMO SALAS, AHMET KEREM KÖSEOGLU, RAMAZAN ALTAY, ALFREDO ORTIZ FERNANDEZ

2022

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

Conference object

IEEE 21st International Conference on Dielectric Liquids (ICDL 2022): 29 May-2 June 2022, Sevilla, Spain.

Authorship: AGUSTIN SANTISTEBAN DIAZ, FELIX ORTIZ FERNANDEZ, A. KEREM KÖSEOGLU, RAMAZAN ALTAY, CARLOS JAVIER RENEDO ESTEBANEZ, ALFREDO ORTIZ FERNANDEZ

2022

Effect of the thermal characteristics of dielectric fluids on the loading capacity of a power transformer

Conference object

IEEE 21st International Conference on Dielectric Liquids (ICDL 2022): 29 May-2 June 2022, Sevilla, Spain.

Authorship: DAVID MATIA GONZALEZ, AGUSTIN SANTISTEBAN DIAZ, FELIX ORTIZ FERNANDEZ, PEDRO JOSE QUINTANILLA CAVIA, DIEGO FERNANDO GARCÍA GÓMEZ, ALFREDO ORTIZ FERNANDEZ

2022

Investigation of the degradation of a wood pulp-cotton presspaper in different biodegradable oils

Conference object

IEEE 21st International Conference on Dielectric Liquids (ICDL 2022): 29 May-2 June 2022, Sevilla, Spain.

Authorship: CRISTINA MENDEZ GUTIERREZ, JAIME SANZ ASENSIO, CRISTIAN OLMO SALAS, FERNANDO DELGADO SAN ROMAN, PEDRO JOSE QUINTANILLA CAVIA, RICCARDO MAINA, ALFREDO ORTIZ FERNANDEZ

2022

A modification of the Norris failure criterion for the prediction of the mechanical failure of the aged paper insulation in the windings of a power transformer

Conference object

IEEE 4th International Conference on Dielectrics (ICD): proceedings, July 3-7, 2022 Palermo, Italy

Authorship: CARMELA ORIA ALONSO, DIEGO FERREÑO BLANCO, ISIDRO ALFONSO CARRASCAL VAQUERO, ALFREDO ORTIZ FERNANDEZ, INMACULADA FERNANDEZ DIEGO

2022

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

Conference object

7th International Advanced Research Workshop on Transformers (ARWtr): Parador de Baiona, 24-26 October 2022. Baiona, Spain

Authorship: PEDRO JOSE QUINTANILLA CAVIA, RAMAZAN ALTAY, AGUSTIN SANTISTEBAN DIAZ, ALFREDO ORTIZ FERNANDEZ, A. KEREM KÖSEOGLU

2022

Study of the thermal degradation of different insulating papers impregnated with a natural ester

Conference object

9th International Conference on Condition Monitoring and Diagnosis (CMD), 13-18 Nov. 2022

Authorship: CRISTINA MENDEZ GUTIERREZ, CRISTIAN OLMO SALAS, CARLOS JAVIER RENEDO ESTEBANEZ, MASAHIRO KOZAKO, MASAYUKI HIKITA, ALFREDO ORTIZ FERNANDEZ

2022

100MVA non-uniform heat losses study

Conference object

9th International Conference on Condition Monitoring and Diagnosis (CMD), 13-18 Nov. 2022

Authorship: RAMAZAN ALTAY, PEDRO JOSE QUINTANILLA CAVIA, ALFREDO ORTIZ FERNANDEZ, FERNANDO DELGADO SAN ROMAN, AHMET KEREM KOSEOGLU

2022

Study on the mechanical failure of the cellulosic insulation of continuously transposed conductors in power transformers under the influence of short circuits and thermal ageing

Article

Engineering Failure Analysis, 2021, 124, 105356 - (CORRIGENDUM), 2021, 128, 105543

Authorship: CARMELA ORIA ALONSO, DIEGO FERREÑO BLANCO, ISIDRO ALFONSO CARRASCAL VAQUERO, ALFREDO ORTIZ FERNANDEZ, INMACULADA FERNANDEZ DIEGO

01/06/2021

Experimental dataset on the tensile and compressive mechanical properties of plain Kraft and crepe papers used as insulation in power transformers after ageing in mineral oil

Article

Data in Brief, 2021, 36, 107031

Authorship: CARMELA ORIA ALONSO, ISIDRO ALFONSO CARRASCAL VAQUERO, DIEGO FERREÑO BLANCO, INMACULADA FERNANDEZ DIEGO, ALFREDO ORTIZ FERNANDEZ

01/06/2021

Study of the impregnation of power-transformer cellulosic materials with dielectric ester oils

Article

IEEE Access, 2021, 9, 124023-124032

Authorship: JAIME SANZ ASENSIO, OASIS SANCIBRIAN LANA, CRISTIAN OLMO SALAS, CRISTINA MENDEZ GUTIERREZ, ALFREDO ORTIZ FERNANDEZ, CARLOS JAVIER RENEDO ESTEBANEZ

14/09/2021

Use performance and management of biodegradable fluids as transformer insulation

Article

Energies, 2021, 14(19), 6357

Authorship: BELEN GARCIA DE BURGOS, ALFREDO ORTIZ FERNANDEZ, CARLOS JAVIER RENEDO ESTEBANEZ, DIEGO FERNANDO GARCÍA GÓMEZ, ANDRÉS MONTERO ROMERO

05/10/2021

Fracture toughness as an alternative approach to quantify the ageing of insulation paper in oil

Article

Cellulose, 2021, 28(18), 11533-11550

Authorship: CRISTINA FERNANDEZ DIEGO, ISIDRO ALFONSO CARRASCAL VAQUERO, ALFREDO ORTIZ FERNANDEZ, INMACULADA FERNANDEZ DIEGO, DIEGO FERREÑO BLANCO, SORAYA DIEGO CAVIA, JOSE ANTONIO CASADO DEL PRADO

01/12/2021

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

Article

Polymers, 2021, 13(23), 4150

Authorship: CRISTINA FERNANDEZ DIEGO, ALFREDO ORTIZ FERNANDEZ, ISIDRO ALFONSO CARRASCAL VAQUERO, INMACULADA FERNANDEZ DIEGO, CARLOS JAVIER RENEDO ESTEBANEZ

27/11/2021

Dielectric and mechanical assessment of cellulosic insulation during transformer manufacturing

Conference object

IEEE Electrical Insulation Conference (EIC): Virtual Event, June 7- June 28, 2021, Denver, CO, USA

Authorship: JAIME SANZ ASENSIO, OASIS SANCIBRIAN LANA, INMACULADA FERNANDEZ DIEGO, ALFREDO ORTIZ FERNANDEZ, CARLOS VILA MONTAÑÉS, CRISTINA MENDEZ GUTIERREZ

2021

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ALFREDO ORTIZ FERNANDEZ

Identifiers

Analysing the suitability of using different biodegradable fluids for power transformers with thermally upgraded paper

Understanding the ageing performance of alternative dielectric fluids

A brief review of the impregnation process with dielectric fluids of cellulosic materials used in electric power transformers

Degradation of the compression strength of spacers made of high-density pressboard used in power transformers under the influence of thermal ageing

Experimental dataset on the compressive mechanical properties of high-density pressboard used in power transformers spacers

El inglés como medio de instrucción en la Universidad de Cantabria: percepción del alumnado y profesorado

The impact of thermal ageing on the compression strength of radial spacers in power transformers

Impact of the use of vegetable oil on the mechanical failure of the cellulosic insulation of continuously transposed conductors in power transformers

Mineral and ester nanofluids as dielectric cooling liquid for power transformers

Compatibility of esters with cellulosic insulation materials

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

Effect of the thermal characteristics of dielectric fluids on the loading capacity of a power transformer

Investigation of the degradation of a wood pulp-cotton presspaper in different biodegradable oils

A modification of the Norris failure criterion for the prediction of the mechanical failure of the aged paper insulation in the windings of a power transformer

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

Study of the thermal degradation of different insulating papers impregnated with a natural ester

100MVA non-uniform heat losses study

Study on the mechanical failure of the cellulosic insulation of continuously transposed conductors in power transformers under the influence of short circuits and thermal ageing

Experimental dataset on the tensile and compressive mechanical properties of plain Kraft and crepe papers used as insulation in power transformers after ageing in mineral oil

Study of the impregnation of power-transformer cellulosic materials with dielectric ester oils

Use performance and management of biodegradable fluids as transformer insulation

Fracture toughness as an alternative approach to quantify the ageing of insulation paper in oil

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

Dielectric and mechanical assessment of cellulosic insulation during transformer manufacturing