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  1. Employees

Språkvelger

Norsk

Øystein Leif Gurandsrud Hestad

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Download press photo
Foto: Kai T. Dragland / NTNU

Øystein Leif Gurandsrud Hestad

Professor
Department of electric energy

oystein.hestad@ntnu.no
+4797112257 F461 - Elektro E + F Gløshaugen, Trondheim
ResearchGate Google Scholar
About Research Publications Teaching Outreach

About

My research and teaching focus on high voltage technology, insulating materials, breakdown mechanisms in polymeric insulations, ageing of dielectric materials, charge transport in dielectric materials, and numerical simulations (mainly using FEM software). I am passionate about advancing our understanding of electrical insulation systems and their performance under extreme conditions, particularly for high-voltage direct current (HVDC) applications.

My research combines experimental work with computational modeling to develop new insights into how materials break down under stress and the mechanisms behind electrical failures. I also have a strong interest in developing novel testing techniques and innovative solutions to real-world engineering challenges.

In addition to my research, I teach courses on insulating materials, high voltage equipment, and electrical power systems, and enjoy mentoring students, particularly in the areas of experimental research  and simulation techniques related to high voltage technology. 

 

Competencies

  • Ageing and degradation mechanisms
  • Condition monitoring
  • Dielectric materials
  • Finite element modelling
  • HVDC subsea cables
  • High field phenomena
  • Streamers in dielectric liquids

Research

  • High Voltage Technology – HVT

LowEmission reserach centre

LowEmission is a research centre for low-emission technology for petroleum activities on the Norwegian continental shelf (NCS). Our mission is to pave the road towards zero-emission production of oil and gas from the NCS.

DeMoKab – Design, Modelling, and Testing of HVDC Cable Insulation for the Future Electrical Grid

DeMoKab aims to establish new knowledge and numerical models for how overvoltages in future HVDC networks will stress the electrical insulation in HVDC cables,

SecurEL

SecurEL facilitates a secure, resilient, and sustainable electricity distribution grid that ensures both the security of electricity supply and a path to a net-zero emissions society.

Publications

  • Chronological
  • By category
  • See all publications in Cristin

2024

  • Hestad, Øystein Leif Gurandsrud; Aakre, Torstein Grav; Lundgaard, Lars Esben. (2024) Conduction and Electric Fields in Dielectric Liquids in Needle-to-Plane Gaps. IEEE transactions on dielectrics and electrical insulation
    Academic article

2023

  • Hestad, Øystein Leif Gurandsrud. (2023) The Key to Cable Longevity: Understanding water treeing in power cables.
    Website (informational material)
  • Abideen, Amar Khairy M; Hestad, Øystein Leif Gurandsrud. (2023) The Key to Cable Longevity: Understanding water treeing in power cables .
    Website (informational material)
  • Lesaint, Cedric Michel; Liland, Knut Brede; Mermigkas, Athanasios; Klusmeier, Katharina Kuhlefelt; Kantar, Emre; Hvidsten, Sverre. (2023) Formation of micro-cracks at the surface of a high voltage cable screen induced by aluminum corrosion.
    Academic chapter/article/Conference paper
  • Ve, Torbjørn; Hestad, Øystein Leif Gurandsrud; Hvidsten, Sverre. (2023) The Effect of Water Content on Time Domain Dielectric Response in Polyetheretherketone. IEEE transactions on dielectrics and electrical insulation
    Academic article

2022

  • Hestad, Øystein Leif Gurandsrud; Tande, John Olav Giæver. (2022) Hybridkabel enkelt forklart .
    Website (informational material)
  • Ve, Torbjørn; Lesaint, Cedric Michel; Sæternes, Hans Helmer; Hvidsten, Sverre; Mermigkas, Athanasios; Bærug, Håvard. (2022) Electrical Ageing and Temperature Cycling of XLPE Insulation Saturated with Water. IEEE (Institute of Electrical and Electronics Engineers)
    Academic chapter/article/Conference paper
  • Abideen, Amar; Mauseth, Frank; Hestad, Øystein Leif Gurandsrud; Faremo, Hallvard. (2022) Review of Water Treeing in Polymeric Insulated Cables. Proceedings of the Nordic Insulation Symposium
    Academic article
  • Hestad, Øystein Leif Gurandsrud; Tande, John Olav Giæver. (2022) “Hybrid cables” explained.
    Website (informational material)
  • Hestad, Øystein Leif Gurandsrud; Aakre, Torstein Grav; Bærug, Håvard; Lundgaard, Lars Esben. (2022) Field Dependent Currents in n-Tridecane. IEEE (Institute of Electrical and Electronics Engineers)
    Academic chapter/article/Conference paper
  • Hestad, Øystein Leif Gurandsrud; Runde, Magne; Enoksen, Henrik; Magnusson, Niklas. (2022) Modeling of Internal Pressure Dynamics in Mass-Impregnated Nondraining HVDC Cables. IEEE transactions on dielectrics and electrical insulation
    Academic article

2021

  • Lesaint, Cedric Michel; Hvidsten, Sverre; Hestad, Øystein Leif Gurandsrud; Olsen, Elise; Bengtsson, Karl Magnus. (2021) Microscopy Study of Inception Sites of Vented Water Trees in a HV XLPE Cable Aged in Salt Water. IEEE (Institute of Electrical and Electronics Engineers)
    Academic chapter/article/Conference paper
  • Hestad, Øystein Leif Gurandsrud; Tande, John Olav Giæver. (2021) Hybridkabel enkelt forklart .
    Website (informational material)
  • Runde, Magne; Hestad, Øystein Leif Gurandsrud; Magnusson, Niklas; Enoksen, Henrik. (2021) Assessment of the Dielectric Type Test Currently Applied on Mass-Impregnated Non-Draining HVDC Cables. CIGRE Science and Engineering
    Academic article
  • Madshaven, Inge; Hestad, Øystein Leif Gurandsrud; Åstrand, Per-Olof. (2021) Cerman: Software for simulating streamer propagation in dielectric liquids based on the Townsend–Meek criterion. Computer Physics Communications
    Academic article

2020

  • Madshaven, Inge; Hestad, Øystein Leif Gurandsrud; Unge, Mikael; Hjortstam, Olof; Åstrand, Per-Olof. (2020) Photoionization model for streamer propagation mode change in simulation model for streamers in dielectric liquids. Plasma Research Express
    Academic article
  • Lunde, Jens Fredrik; Mauseth, Frank; Hestad, Øystein Leif Gurandsrud. (2020) Electric field distribution in layered polymeric HVDC insulation. NTNU Trondheim
    Masters thesis
  • Lundgaard, Lars Esben; Linhjell, Dag; Hestad, Øystein Leif Gurandsrud; Unge, Michael; Hjortstam, Olof. (2020) Pre-breakdown phenomena in hydrocarbon liquids in a point-plane gap under step voltage. Part 2: behaviour under negative polarity and comparison with positive polarity. Journal of Physics Communications
    Academic article
  • Madshaven, Inge; Åstrand, Per-Olof; Hestad, Øystein Leif Gurandsrud. (2020) Simulating electron-avalanche-driven positive streamers in dielectric liquids. Norwegian University of Science and Technology
    Doctoral dissertation

2019

  • Lesaint, Cedric Michel; Liland, Knut Brede; Hestad, Øystein Leif Gurandsrud. (2019) Chemical ageing of subsea mass impregnated insulation cable paper. SEE
    Academic chapter/article/Conference paper
  • Madshaven, Inge; Hestad, Øystein Leif Gurandsrud; Unge, Mikael; Hjortstam, Olof; Åstrand, Per-Olof. (2019) Conductivity and capacitance of streamers in avalanche model for streamer propagation in dielectric liquids. Plasma Research Express
    Academic article

2018

  • Madshaven, Inge; Åstrand, Per-Olof; Hestad, Øystein Leif Gurandsrud; Ingebrigtsen, Stian; Unge, Mikael; Hjortstam, Olof. (2018) Simulation model for the propagation of second mode streamers in dielectric liquids using the Townsend-Meek criterion. Journal of Physics Communications
    Academic article

2017

  • Madshaven, Inge; Åstrand, Per-Olof; Hestad, Øystein Leif Gurandsrud; Unge, Mikael; Hjortstam, O.. (2017) Modeling the transition to fast mode streamers in dielectric liquids. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Hestad, Øystein Leif Gurandsrud; Linhjell, Dag; Lundgaard, Lars Esben; Samseth, Jarl Ø.; Unge, Mikael. (2017) Field dependent conductivity of n-pentane. IEEE conference proceedings
    Academic chapter/article/Conference paper

2016

  • Aakre, Torstein Grav; Ve, Torbjørn; Hestad, Øystein. (2016) Conductivity and permittivity of Midel 7131 : effect of temperature, moisture content, hydrostatic pressure and electric field. IEEE transactions on dielectrics and electrical insulation
    Academic article
  • Aakre, Torstein Grav; Hestad, Øystein; Hølto, Jorunn; Hvidsten, Sverre. (2016) The effect of temperature cycling on mechanical and electrical properties of syndiotactic polypropylene. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Hestad, Øystein Leif; Enoksen, Henrik; Hvidsten, Sverre. (2016) Effect of static mechanical strain on the DC conductivity of extruded cross-linked polyethylene cable insulation. SEE
    Academic chapter/article/Conference paper
  • Hestad, Øystein Leif Gurandsrud; Vuong, Au-Dung; Madshaven, Inge; Åstrand, Per-Olof Harald. (2016) Thermal Decomposition of Cyclohexane by Kinetic Monte Carlo Simulations and its Relevance to Streamer Formation. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Madshaven, Inge; Smalø, Hans Sverre; Unge, Michael; Hestad, Øystein Leif Gurandsrud. (2016) Photoionization Model for the Transition to Fast Mode Streamers in Dielectric Liquids. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Lesaint, Cedric Michel; Risinggård, Vetle Meland; Hestad, Øystein; Hvidsten, Sverre; Glomm, Wilhelm. (2016) Self-healing composites for high voltage electrical insulation. SEE
    Academic chapter/article/Conference paper

2015

  • Gelimeri, Simone; Mazzanti, Giovanni; Mauseth, Frank; Hestad, Øystein Leif. (2015) Misure di carica de spazio e di conducibilita elettrica nel materiale semicristallino PEEK. Universita di Bologna
    Masters thesis

2014

  • Lesaint, Cedric Michel; Risinggård, Vetle; Hølto, Jorunn; Sæternes, Hans Helmer; Hestad, Øystein Leif; Hvidsten, Sverre. (2014) Self-healing high voltage electrical insulation materials. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Hølto, Jorunn; Hestad, Øystein Leif. (2014) Field and Temperature Dependent Conductivity of Syndiotactic Polypropylene : Effect of temperature and electric field. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Hestad, Øystein Leif; Grav, Torstein; Lundgaard, Lars Esben; Ingebrigtsen, Stian; Unge, M.; Hjortstam, O.. (2014) Numerical simulation of positive streamer propagation in cyclohexane. Curran Associates, Inc.
    Academic chapter/article/Conference paper

2012

  • Hestad, Øystein Leif; Mauseth, Frank; Kyte, Ruth Helene. (2012) Electrical conductivity of medium voltage XLPE insulated cables. IEEE conference proceedings
    Academic chapter/article/Conference paper

2011

  • Hestad, Øystein Leif; Lundgaard, Lars Esben; Åstrand, Per-Olof. (2011) n-tridecane as a model system for polyethylene: comparison of pre-breakdown phenomena in liquid and solid phase stressed by a fast transient. IEEE transactions on dielectrics and electrical insulation
    Academic article
  • Hestad, Øystein Leif; Smalø, Hans Sverre; Åstrand, Per-Olof; Ingebrigtsen, Stian; Lundgaard, Lars Esben. (2011) Effects of N,N-dimethylaniline and trichloroethene on prebreakdown phenomena in liquid and solid n-tridecane. IEEE transactions on dielectrics and electrical insulation
    Academic article
  • Smalø, Hans Sverre; Hestad, Øystein Leif; Ingebrigtsen, Stian; Åstrand, Per Olof. (2011) Field dependence on the molecular ionization potential and excitation energies compared to conductivity models for insulation materials at high electric fields. Journal of Applied Physics
    Academic article

2010

  • Hestad, Øystein Leif; Lundgaard, Lars Esben; Linhjell, Dag. (2010) New experimental system for the study of the effect of temperature and liquid to solid transition on streamers in dielectric liquids: Application to cyclohexane. IEEE transactions on dielectrics and electrical insulation
    Academic article
  • Hestad, Øystein Leif; Åstrand, Per-Olof; Lundgaard, Lars E.; Ildstad, Erling. (2010) Prebreakdown phenomena in solids and liquids stressed by fast transients: The effect of additives and phase. NTNU
    Doctoral dissertation

2008

  • Lundgaard, Lars Esben; Linhjell, Dag; Hestad, Øystein Leif Gurandsrud; Borlaug, Jan-Trygve. (2008) High Frequency dielectric Response of Paper/Oil Insulation. IEEE (Institute of Electrical and Electronics Engineers)
    Academic chapter/article/Conference paper
  • Hestad, Øystein Leif Gurandsrud; Lundgaard, Lars Esben. (2008) Streamer Inception in Cyclohexane Above and Below Freezing Point. IEEE (Institute of Electrical and Electronics Engineers)
    Academic chapter/article/Conference paper

2006

  • Hestad, Øystein Leif; Hvidsten, Sverre. (2006) Condensation of water vapour in XLPE insulation at different cooling rates and pressures. IEEE conference proceedings
    Academic chapter/article/Conference paper

2005

  • Linhjell, Dag; Hestad, Øystein Leif Gurandsrud; Gäfvert, U.; Lundgaard, Lars Esben. (2005) Dielectric response of oil-impregnated cellulose from 0.1 mHz to 3 MHz. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Lundgaard, Lars Esben; Hestad, Øystein Leif; Ingebrigtsen, Stian. (2005) Review of test method for dielectric properties of liquids for HV transformer application. Tapir Akademisk Forlag
    Academic chapter/article/Conference paper
  • Hestad, Øystein Leif; Ingebrigtsen, Stian; Lundgaard, Lars Esben. (2005) Streamer initiation in cyclohexane, Midel 7131 and Nytro 10X. IEEE conference proceedings
    Academic chapter/article/Conference paper

2004

  • Hestad, Øystein Leif Gurandsrud; Berg, Gunnar; Ingebrigtsen, Stian; Liland, Knut Brede. (2004) Streamer injection and growth under impulse voltage : a comparison of cyclohexane, Midel 7131 and Nytro 10X. IEEE conference proceedings
    Academic chapter/article/Conference paper

Journal publications

  • Hestad, Øystein Leif Gurandsrud; Aakre, Torstein Grav; Lundgaard, Lars Esben. (2024) Conduction and Electric Fields in Dielectric Liquids in Needle-to-Plane Gaps. IEEE transactions on dielectrics and electrical insulation
    Academic article
  • Ve, Torbjørn; Hestad, Øystein Leif Gurandsrud; Hvidsten, Sverre. (2023) The Effect of Water Content on Time Domain Dielectric Response in Polyetheretherketone. IEEE transactions on dielectrics and electrical insulation
    Academic article
  • Abideen, Amar; Mauseth, Frank; Hestad, Øystein Leif Gurandsrud; Faremo, Hallvard. (2022) Review of Water Treeing in Polymeric Insulated Cables. Proceedings of the Nordic Insulation Symposium
    Academic article
  • Hestad, Øystein Leif Gurandsrud; Runde, Magne; Enoksen, Henrik; Magnusson, Niklas. (2022) Modeling of Internal Pressure Dynamics in Mass-Impregnated Nondraining HVDC Cables. IEEE transactions on dielectrics and electrical insulation
    Academic article
  • Runde, Magne; Hestad, Øystein Leif Gurandsrud; Magnusson, Niklas; Enoksen, Henrik. (2021) Assessment of the Dielectric Type Test Currently Applied on Mass-Impregnated Non-Draining HVDC Cables. CIGRE Science and Engineering
    Academic article
  • Madshaven, Inge; Hestad, Øystein Leif Gurandsrud; Åstrand, Per-Olof. (2021) Cerman: Software for simulating streamer propagation in dielectric liquids based on the Townsend–Meek criterion. Computer Physics Communications
    Academic article
  • Madshaven, Inge; Hestad, Øystein Leif Gurandsrud; Unge, Mikael; Hjortstam, Olof; Åstrand, Per-Olof. (2020) Photoionization model for streamer propagation mode change in simulation model for streamers in dielectric liquids. Plasma Research Express
    Academic article
  • Lundgaard, Lars Esben; Linhjell, Dag; Hestad, Øystein Leif Gurandsrud; Unge, Michael; Hjortstam, Olof. (2020) Pre-breakdown phenomena in hydrocarbon liquids in a point-plane gap under step voltage. Part 2: behaviour under negative polarity and comparison with positive polarity. Journal of Physics Communications
    Academic article
  • Madshaven, Inge; Hestad, Øystein Leif Gurandsrud; Unge, Mikael; Hjortstam, Olof; Åstrand, Per-Olof. (2019) Conductivity and capacitance of streamers in avalanche model for streamer propagation in dielectric liquids. Plasma Research Express
    Academic article
  • Madshaven, Inge; Åstrand, Per-Olof; Hestad, Øystein Leif Gurandsrud; Ingebrigtsen, Stian; Unge, Mikael; Hjortstam, Olof. (2018) Simulation model for the propagation of second mode streamers in dielectric liquids using the Townsend-Meek criterion. Journal of Physics Communications
    Academic article
  • Aakre, Torstein Grav; Ve, Torbjørn; Hestad, Øystein. (2016) Conductivity and permittivity of Midel 7131 : effect of temperature, moisture content, hydrostatic pressure and electric field. IEEE transactions on dielectrics and electrical insulation
    Academic article
  • Hestad, Øystein Leif; Lundgaard, Lars Esben; Åstrand, Per-Olof. (2011) n-tridecane as a model system for polyethylene: comparison of pre-breakdown phenomena in liquid and solid phase stressed by a fast transient. IEEE transactions on dielectrics and electrical insulation
    Academic article
  • Hestad, Øystein Leif; Smalø, Hans Sverre; Åstrand, Per-Olof; Ingebrigtsen, Stian; Lundgaard, Lars Esben. (2011) Effects of N,N-dimethylaniline and trichloroethene on prebreakdown phenomena in liquid and solid n-tridecane. IEEE transactions on dielectrics and electrical insulation
    Academic article
  • Smalø, Hans Sverre; Hestad, Øystein Leif; Ingebrigtsen, Stian; Åstrand, Per Olof. (2011) Field dependence on the molecular ionization potential and excitation energies compared to conductivity models for insulation materials at high electric fields. Journal of Applied Physics
    Academic article
  • Hestad, Øystein Leif; Lundgaard, Lars Esben; Linhjell, Dag. (2010) New experimental system for the study of the effect of temperature and liquid to solid transition on streamers in dielectric liquids: Application to cyclohexane. IEEE transactions on dielectrics and electrical insulation
    Academic article

Part of book/report

  • Lesaint, Cedric Michel; Liland, Knut Brede; Mermigkas, Athanasios; Klusmeier, Katharina Kuhlefelt; Kantar, Emre; Hvidsten, Sverre. (2023) Formation of micro-cracks at the surface of a high voltage cable screen induced by aluminum corrosion.
    Academic chapter/article/Conference paper
  • Ve, Torbjørn; Lesaint, Cedric Michel; Sæternes, Hans Helmer; Hvidsten, Sverre; Mermigkas, Athanasios; Bærug, Håvard. (2022) Electrical Ageing and Temperature Cycling of XLPE Insulation Saturated with Water. IEEE (Institute of Electrical and Electronics Engineers)
    Academic chapter/article/Conference paper
  • Hestad, Øystein Leif Gurandsrud; Aakre, Torstein Grav; Bærug, Håvard; Lundgaard, Lars Esben. (2022) Field Dependent Currents in n-Tridecane. IEEE (Institute of Electrical and Electronics Engineers)
    Academic chapter/article/Conference paper
  • Lesaint, Cedric Michel; Hvidsten, Sverre; Hestad, Øystein Leif Gurandsrud; Olsen, Elise; Bengtsson, Karl Magnus. (2021) Microscopy Study of Inception Sites of Vented Water Trees in a HV XLPE Cable Aged in Salt Water. IEEE (Institute of Electrical and Electronics Engineers)
    Academic chapter/article/Conference paper
  • Lesaint, Cedric Michel; Liland, Knut Brede; Hestad, Øystein Leif Gurandsrud. (2019) Chemical ageing of subsea mass impregnated insulation cable paper. SEE
    Academic chapter/article/Conference paper
  • Madshaven, Inge; Åstrand, Per-Olof; Hestad, Øystein Leif Gurandsrud; Unge, Mikael; Hjortstam, O.. (2017) Modeling the transition to fast mode streamers in dielectric liquids. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Hestad, Øystein Leif Gurandsrud; Linhjell, Dag; Lundgaard, Lars Esben; Samseth, Jarl Ø.; Unge, Mikael. (2017) Field dependent conductivity of n-pentane. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Aakre, Torstein Grav; Hestad, Øystein; Hølto, Jorunn; Hvidsten, Sverre. (2016) The effect of temperature cycling on mechanical and electrical properties of syndiotactic polypropylene. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Hestad, Øystein Leif; Enoksen, Henrik; Hvidsten, Sverre. (2016) Effect of static mechanical strain on the DC conductivity of extruded cross-linked polyethylene cable insulation. SEE
    Academic chapter/article/Conference paper
  • Hestad, Øystein Leif Gurandsrud; Vuong, Au-Dung; Madshaven, Inge; Åstrand, Per-Olof Harald. (2016) Thermal Decomposition of Cyclohexane by Kinetic Monte Carlo Simulations and its Relevance to Streamer Formation. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Madshaven, Inge; Smalø, Hans Sverre; Unge, Michael; Hestad, Øystein Leif Gurandsrud. (2016) Photoionization Model for the Transition to Fast Mode Streamers in Dielectric Liquids. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Lesaint, Cedric Michel; Risinggård, Vetle Meland; Hestad, Øystein; Hvidsten, Sverre; Glomm, Wilhelm. (2016) Self-healing composites for high voltage electrical insulation. SEE
    Academic chapter/article/Conference paper
  • Lesaint, Cedric Michel; Risinggård, Vetle; Hølto, Jorunn; Sæternes, Hans Helmer; Hestad, Øystein Leif; Hvidsten, Sverre. (2014) Self-healing high voltage electrical insulation materials. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Hølto, Jorunn; Hestad, Øystein Leif. (2014) Field and Temperature Dependent Conductivity of Syndiotactic Polypropylene : Effect of temperature and electric field. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Hestad, Øystein Leif; Grav, Torstein; Lundgaard, Lars Esben; Ingebrigtsen, Stian; Unge, M.; Hjortstam, O.. (2014) Numerical simulation of positive streamer propagation in cyclohexane. Curran Associates, Inc.
    Academic chapter/article/Conference paper
  • Hestad, Øystein Leif; Mauseth, Frank; Kyte, Ruth Helene. (2012) Electrical conductivity of medium voltage XLPE insulated cables. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Lundgaard, Lars Esben; Linhjell, Dag; Hestad, Øystein Leif Gurandsrud; Borlaug, Jan-Trygve. (2008) High Frequency dielectric Response of Paper/Oil Insulation. IEEE (Institute of Electrical and Electronics Engineers)
    Academic chapter/article/Conference paper
  • Hestad, Øystein Leif Gurandsrud; Lundgaard, Lars Esben. (2008) Streamer Inception in Cyclohexane Above and Below Freezing Point. IEEE (Institute of Electrical and Electronics Engineers)
    Academic chapter/article/Conference paper
  • Hestad, Øystein Leif; Hvidsten, Sverre. (2006) Condensation of water vapour in XLPE insulation at different cooling rates and pressures. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Linhjell, Dag; Hestad, Øystein Leif Gurandsrud; Gäfvert, U.; Lundgaard, Lars Esben. (2005) Dielectric response of oil-impregnated cellulose from 0.1 mHz to 3 MHz. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Lundgaard, Lars Esben; Hestad, Øystein Leif; Ingebrigtsen, Stian. (2005) Review of test method for dielectric properties of liquids for HV transformer application. Tapir Akademisk Forlag
    Academic chapter/article/Conference paper
  • Hestad, Øystein Leif; Ingebrigtsen, Stian; Lundgaard, Lars Esben. (2005) Streamer initiation in cyclohexane, Midel 7131 and Nytro 10X. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Hestad, Øystein Leif Gurandsrud; Berg, Gunnar; Ingebrigtsen, Stian; Liland, Knut Brede. (2004) Streamer injection and growth under impulse voltage : a comparison of cyclohexane, Midel 7131 and Nytro 10X. IEEE conference proceedings
    Academic chapter/article/Conference paper

Report

  • Lunde, Jens Fredrik; Mauseth, Frank; Hestad, Øystein Leif Gurandsrud. (2020) Electric field distribution in layered polymeric HVDC insulation. NTNU Trondheim
    Masters thesis
  • Madshaven, Inge; Åstrand, Per-Olof; Hestad, Øystein Leif Gurandsrud. (2020) Simulating electron-avalanche-driven positive streamers in dielectric liquids. Norwegian University of Science and Technology
    Doctoral dissertation
  • Gelimeri, Simone; Mazzanti, Giovanni; Mauseth, Frank; Hestad, Øystein Leif. (2015) Misure di carica de spazio e di conducibilita elettrica nel materiale semicristallino PEEK. Universita di Bologna
    Masters thesis
  • Hestad, Øystein Leif; Åstrand, Per-Olof; Lundgaard, Lars E.; Ildstad, Erling. (2010) Prebreakdown phenomena in solids and liquids stressed by fast transients: The effect of additives and phase. NTNU
    Doctoral dissertation

Information material

  • Hestad, Øystein Leif Gurandsrud. (2023) The Key to Cable Longevity: Understanding water treeing in power cables.
    Website (informational material)
  • Abideen, Amar Khairy M; Hestad, Øystein Leif Gurandsrud. (2023) The Key to Cable Longevity: Understanding water treeing in power cables .
    Website (informational material)
  • Hestad, Øystein Leif Gurandsrud; Tande, John Olav Giæver. (2022) Hybridkabel enkelt forklart .
    Website (informational material)
  • Hestad, Øystein Leif Gurandsrud; Tande, John Olav Giæver. (2022) “Hybrid cables” explained.
    Website (informational material)
  • Hestad, Øystein Leif Gurandsrud; Tande, John Olav Giæver. (2021) Hybridkabel enkelt forklart .
    Website (informational material)

Teaching

Courses

  • ET8100 - Electric Conductivity, Dielectric Losses and Breakdown of Solid and Liquid High Voltage Insulation
  • TET4585 - High Voltage Technology, Specialisation Course
  • TET4160 - Insulating Materials for High Voltage Applications
  • TET5100 - Electromagnetic Analysis in Power Engineering
  • TET4195 - High Voltage Equipment
  • ELDI2004 - High Voltage Technology

Outreach

2023

  • Academic lecture
    Lesaint, Cedric Michel; Liland, Knut Brede; Mermigkas, Athanasios; Klusmeier, Katharina Kuhlefelt; Kantar, Emre; Hvidsten, Sverre. (2023) Formation of micro-cracks at the surface of a high voltage cable screen induced by aluminum corrosion. Jicable'23 , Lyon 2023-06-18 - 2023-06-22

2022

  • Poster
    D'Arco, Salvatore; Svendsen, Harald Georg; Hestad, Øystein Leif Gurandsrud; Hvidsten, Sverre. (2022) Ocean Grid Research – grid and system integration innovations for North Sea wind energy realisation. EERA EERA DeepWind Conference 2022 , Trondheim, Norway (Digital event) 2022-01-18 - 2022-01-20

2014

  • Interview
    Hestad, Øystein Leif; Lesaint, Cedric Michel. (2014) Sparer penger med materialer som fikser seg selv. Forskning.no Forskning.no [Internet] 2014-11-20
  • Interview
    Lesaint, Cedric Michel; Hestad, Øystein Leif. (2014) Mikrokapsler; Sintef-forskere: Dette kan bli fremtidens isolasjonsmateriale. tu.no tu.no [Internet] 2014-11-27

2008

  • Poster
    Hestad, Øystein; Lundgaard, Lars E.. (2008) Streamer Inception in Cyclohexane Above and Below Freezing Point. ICDL 2008 , Poitier 2008-06-30 - 2008-07-04

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