sample of publications

• articles 

  • Electric field distribution in natural-ester retrofilled transformers under AC stress.  INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS.  155. 2024
  • Life Expectancy of Transformer Paper Insulation Retrofilled with Natural Ester in the Laboratory.  Polymers.  15. 2023
  • A New Method for the Quantification of the Remaining Mineral Oil in Natural-Ester Retrofilled Transformers.  IEEE ELECTRICAL INSULATION MAGAZINE.  39:17-25. 2023
  • Study on the contamination rate of mineral oil in natural-ester retrofilled transformers.  IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION.  30:1641-1648. 2023
  • Power transformer temperature moisture dynamics modeling. An experimental validation.  ELECTRICAL ENGINEERING.  2022
  • Dielectric Strength of Nanofluid-Impregnated Transformer Solid Insulation.  Nanomaterials.  12:1-16. 2022
  • Influence of Nanoparticles on the Degradation Processes of Ester-Based Transformer Insulation Systems.  Energies.  15:1520-1532. 2022
  • Dielectric design of ester-filled power transformers: AC stress analysis.  IEEE TRANSACTIONS ON POWER DELIVERY.  37:2403-2412. 2022
  • Use Performance and Management of Biodegradable Fluids as Transformer Insulation.  Energies.  14:6357-6374. 2021
  • Dielectric Response of the Oil-Paper Insulation System in Nanofluid-Based Transformers.  IEEE Access.  9:83797-83805. 2021
  • Moisture dynamics in natural-ester filled transformers.  INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS.  124:1-11. 2021
  • Morphological analysis of transformer Kraft paper impregnated with dielectric nanofluids.  CELLULOSE.  2020
  • AC breakdown voltage of Fe3O4 based nanodielectric fluids. Part 1: Analysis of dry fluids.  IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION.  27:352-359. 2020
  • AC breakdown voltage of Fe3O4 based nanodielectric fluids. Part 2: Analysis of fluids with high moisture content.  IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION.  27:360-367. 2020
  • Quantification of efficiency improvements from integration of battery energy storage systems and renewable energy sources into domestic distribution networks.  Energies.  12. 2019
  • Investigation of the lightning impulse breakdown voltage of mineral oil based Fe3O4 nanofluids.  Coatings.  9:1-16. 2019
  • A Multiphysical model to study moisture dynamics in transformers.  IEEE TRANSACTIONS ON POWER DELIVERY.  34:1365-1373. 2019
  • Evaluation of the Stability of Dielectric Nanofluids for Use in Transformers under Real Operating Conditions.  Nanomaterials.  9. 2019
  • Improvement of transformer liquid insulation using nanodielectric fluids: a review.  IEEE ELECTRICAL INSULATION MAGAZINE.  34:13-26. 2018
  • Studying the Loss of Life of Natural-Ester-Filled Transformer Insulation: Impact of Moisture on the Aging Rate of Paper.  IEEE ELECTRICAL INSULATION MAGAZINE.  33:15-23. 2017
  • Investigating the influence of moisture on the 2FAL generation rate of transformers: A new model to estimate the DP of cellulosic insulation.  ELECTRIC POWER SYSTEMS RESEARCH.  140:87-94. 2016
  • Effect of the thickness on the water mobility inside transformer cellulosic insulation.  IEEE TRANSACTIONS ON POWER DELIVERY.  31:955-962. 2016
  • Statistical study on the reference values of furanic compounds in power transformers.  IEEE ELECTRICAL INSULATION MAGAZINE.  31:15-23. 2015
  • Development of a moisture-in-solid-insulation sensor for power transformers.  SENSORS.  15:3610-3624. 2015
  • Moisture Diffusion Coefficients of Transformer Pressboard Insulation Impregnated with Natural Esters.  IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION.  22:581-589. 2015
  • Assessing the use of natural esters for transformer field drying.  IEEE TRANSACTIONS ON POWER DELIVERY.  29:1894-1900. 2014
  • Diffusion Coefficient in Transformer Pressboard Insulation Part 1: Non Impregnated Pressboard.  IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION.  21:360-368. 2014
  • Diffusion Coefficient in Transformer Pressboard Insulation Part 2: Mineral Oil impregnated.  IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION.  21:394-402. 2014
  • Determination of moisture diffusion coefficient for oil-impregnated Kraft-paper insulation.  INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS.  53:279-286. 2013
  • A review of moisture diffusion coefficients in transformer solid insulation - Part 2: experimental validation of the coefficients.  IEEE ELECTRICAL INSULATION MAGAZINE.  29:40-49. 2013
  • A review of moisture diffusion coefficients in transformer solid insulation-part 1: coefficients for paper and pressboard.  IEEE ELECTRICAL INSULATION MAGAZINE.  29:46-54. 2013
  • Analysis of the influence of low-frequency heating on transformer drying - Part 1: Theoretical analysis.  INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS.  38:84-89. 2012
  • Analysis of the influence of low-frequency heating on transformer drying - Part 2: Experiences with a real transformer.  INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS.  38:90-96. 2012
  • Experimental determination of the diffusion coefficient of water in transformer solid insulation.  IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION.  19:427-433. 2012
  • Determination of moisture diffusion coefficient in transformer paper using thermogravimetric analysis.  INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER.  55:1066-1075. 2012
  • Modeling power transformer field drying processes.  DRYING TECHNOLOGY.  29:896-909. 2011
  • Transformer Field Drying Procedures: A Theoretical Analysis.  IEEE TRANSACTIONS ON POWER DELIVERY.  24:1978-1986. 2009

• book chapters 

  • Moisture Analysis for Power Transformers. In: Power Transformer Condition Monitoring and Diagnosis.  IET The institution of Engineering and Technology. 2018

• conference contributions 

  • A comparative study on the dielectric properties of mineral oils and natural esters 2023
  • A statistical analysis of predictive maintenance tests on synthetic ester-filled railway transformers.  1-5. 2023
  • Experimental Study on the Insulation Permittivity of Transformers Retrofilled with Natural Esters.  1-4. 2022
  • Temperature Dependency of the Dielectric Response of Nanofluid-based Transformer Insulation Systems.  1-4. 2022
  • Application of biodegradable fluids as liquid insulation for distribution and power transformers.  1-6. 2020
  • Piezoelectric energy harvesting system to detect winding deformation in power transformers.  171-181. 2020
  • Analysing the impact of Moisture on the AC breakdown voltage on natural ester based nanodielectric fluids.  1-4. 2019
  • Analysing the impact of moisture on the AC Breakdown Voltage of natural-ester based nanodielectric fluids 2019
  • Analysis of water solubility in natural-ester based nanodielectric fluids.  1-4. 2019
  • Piezoelectric energy harvesting system to detect winding deformation in power transformers.  171-181. 2019
  • Advanced On-line Condition Monitoring of, and Inter-turn Short Circuit Detection in, Power Transformers 2018
  • Analysing the impact of moisture on the AC breakdown voltage of Fe3O4 based nanodielectric fluids 2018
  • Experimental validation of a moisture sensor for cellulosic insulation of power transformers.  286-289. 2018
  • Applicability of nanodielectric fluids to the improvement of transformer insulation properties.  76-79. 2016
  • Enhanced condition monitoring of power transformers through improvement in accuracy of DGA interpretation 2016
  • Enhancing transformer liquid insulation with nanodielectric fluids: state of the art and future trends 2016
  • Modelling the dielectric response of a water-in-solid-insulation sensor for power transformer monitoring.  915-918. 2016
  • Power transformer health monitoring: A shift from off-line to on-line detection.  1-6. 2015
  • A new methodology for determining the moisture diffusion coefficient of transformer solid insulation.  1024-1027. 2013
  • A new methodology for determining the moisture diffusion coefficient of transformer solid insulation 2013
  • A tool to evaluate the economy of a transformer drying process.  1032-1035. 2013
  • DGA: reference values from Power Transformers in Spain 2013
  • Experimental study on moisture dynamics in transformers insulated with natural-esters.  545-548. 2013
  • Moisture sensor to characterize transformer solid insulations in transformers under non-equilibrium conditions.  1028-1031. 2013
  • Statistical study on the typical concentrations of furanic compounds in power transformers in Spain 2013
  • Transformer Field Drying Improvement by Applying Low-Frequency-Heating.  1-6. 2012