sample of publications

• articles 

  • Morphological analysis of transformer Kraft paper impregnated with dielectric nanofluids.  CELLULOSE.  2020
  • Rules to estimate the expected values of zero-sequence impedances in 3 phase core-type transformers.  ELECTRIC POWER SYSTEMS RESEARCH.  165:94-101. 2018
  • Comparison of Positive Streamers in Liquid Dielectrics with and without Nanoparticles Simulated with Finite-Element Software.  Energies.  11. 2018
  • Influence of tertiary stabilizing windings on zero-sequence performance of three-phase three-legged YNynd transformers. Part II: Tank overheating hazard and short-circuit duty.  ELECTRIC POWER SYSTEMS RESEARCH.  145:149-156. 2017
  • Influence of tertiary stabilizing windings of three-phase three-legged YNynd transformers on short-circuit performance of power grids.  ELECTRIC POWER SYSTEMS RESEARCH.  144:89-95. 2017
  • Influence of tertiary stabilizing windings on zero-sequence performance of three-phase three-legged YNynd transformers. Part I: Equivalent circuit models.  ELECTRIC POWER SYSTEMS RESEARCH.  144:32-40. 2017
  • 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
  • Application of 2D linear modeling for computing zero-sequence short-circuit impedances of 3-phase core-type YNynd transformers.  ELECTRIC POWER SYSTEMS RESEARCH.  122:1-9. 2015
  • Moisture Diffusion Coefficients of Transformer Pressboard Insulation Impregnated with Natural Esters.  IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION.  22:581-589. 2015
  • Application of 2D linear models for computing zero-sequence magnetizing impedances of 3-phase core-type transformers.  ELECTRIC POWER SYSTEMS RESEARCH.  117:123-133. 2014
  • About the difference between zero-sequence magnetizing impedances of a 3-phase core-type transformer.  ELECTRIC POWER SYSTEMS RESEARCH.  116:439-443. 2014
  • Algorithm based on the mesh analysis for computing 2-D magnetostatic fields by the finite difference method.  INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS.  62:583-585. 2014
  • Assessing the use of natural esters for transformer field drying.  IEEE TRANSACTIONS ON POWER DELIVERY.  29:1894-1900. 2014
  • Comparison of four methods for computing positive-sequence reactances of three-phase core-type transformers.  IET Generation Transmission & Distribution.  8:1221-1227. 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
  • Calculation of the positive-sequence reactance of power transformers by using the results of magnetic energy from the numerical simulation of 3D magnetostatic fields.  ELECTRIC POWER SYSTEMS RESEARCH.  105:85-87. 2013
  • Determination of moisture diffusion coefficient for oil-impregnated Kraft-paper insulation.  INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS.  53:279-286. 2013
  • Determination of parameters of zero-sequence equivalent circuits for three-phase three-legged YNynd transformers based on onsite low-voltage tests.  IEEE TRANSACTIONS ON POWER DELIVERY.  28:1618-1625. 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
  • A methodology for obtaining by measurements the transformer physical-circuital model parameters.  Przeglad Elektrotechniczny.  88:12-15. 2012
  • 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
  • Vibration Analysis using Envelope Wavelet for detecting Faults in the OLTC Tap Selector.  IEEE TRANSACTIONS ON POWER DELIVERY.  25:1629-1636. 2010
  • Core Magnetization Effects on the Frequency Response Analysis of Transformers.  Przeglad Elektrotechniczny.  2010:6-10. 2010
  • Transformer Field Drying Procedures: A Theoretical Analysis.  IEEE TRANSACTIONS ON POWER DELIVERY.  24:1978-1986. 2009
  • Condition Assessment of Power OLTC by Vibration Analysis Using Wavelet Transform.  IEEE TRANSACTIONS ON POWER DELIVERY.  24:687-694. 2009
  • Vibration Analysis as Method Diagnosis for Power on Load Tap Changers.  Revista de ingenieria Universidad de Los Andes.  12. 2008

• book chapters 

  • Methodology for Vibration Signal Processing of an On-load Tap Changer. In: Advances in Vibration Analysis Research.  INTECH. 329-342. 2011

• conference contributions 

  • Application of biodegradable fluids as liquid insulation for distribution and power transformers.  1-6. 2020
  • Analysing the impact of Moisture on the AC breakdown voltage on natural ester based nanodielectric fluids.  1-4. 2019
  • Analysis of water solubility in natural-ester based nanodielectric fluids.  1-4. 2019
  • Applicability of nanodielectric fluids to the improvement of transformer insulation properties.  76-79. 2016
  • 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
  • Comparative study of axial forces in a transformer using Roth method vs using FEM 2013
  • DGA: reference values from Power Transformers in Spain 2013
  • Experimental study on moisture dynamics in transformers insulated with natural-esters.  545-548. 2013
  • Statistical study on the typical concentrations of furanic compounds in power transformers in Spain 2013
  • Comparison of Methods for Measuring Zero Sequence Impedances in 3-Phase Core-type Transformers.  1-5. 2012
  • Transformer Field Drying Improvement by Applying Low-Frequency-Heating.  1-6. 2012