2025

• Gerhard, Silas Merlin; Mauseth, Frank; Hestad, Øystein Leif Gurandsrud; Doedens, Espen; Jarvid, Markus. (2025) Lifetime Estimation based on HVDC Breakdown Strength of Thin Films Peeled from Fresh and PQ-Tested 525 kV DC-XLPE Cables.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

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
  Vitenskapelig artikkel

2023

• 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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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
  Vitenskapelig artikkel

2022

• 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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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
  Vitenskapelig artikkel
• Hestad, Øystein Leif Gurandsrud; Aakre, Torstein Grav; Bærug, Håvard; Lundgaard, Lars Esben. (2022) Field Dependent Currents in n-Tridecane.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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
  Vitenskapelig artikkel

2021

• 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
  Vitenskapelig artikkel
• 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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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
  Vitenskapelig artikkel

2020

• 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
  Vitenskapelig artikkel
• Lunde, Jens Fredrik; Mauseth, Frank; Hestad, Øystein Leif Gurandsrud. (2020) Electric field distribution in layered polymeric HVDC insulation. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
  Mastergradsoppgave
• 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
  Vitenskapelig artikkel
• Madshaven, Inge; Åstrand, Per-Olof; Hestad, Øystein Leif Gurandsrud. (2020) Simulating electron-avalanche-driven positive streamers in dielectric liquids. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
  Doktorgradsavhandling

2019

• Lesaint, Cedric Michel; Liland, Knut Brede; Hestad, Øystein Leif Gurandsrud. (2019) Chemical ageing of subsea mass impregnated insulation cable paper.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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
  Vitenskapelig artikkel

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
  Vitenskapelig artikkel

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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Hestad, Øystein Leif Gurandsrud; Linhjell, Dag; Lundgaard, Lars Esben; Samseth, Jarl Ø.; Unge, Mikael. (2017) Field dependent conductivity of n-pentane.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2016

• Aakre, Torstein Grav; Hestad, Øystein; Hølto, Jorunn; Hvidsten, Sverre. (2016) The effect of temperature cycling on mechanical and electrical properties of syndiotactic polypropylene.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Hestad, Øystein Leif; Enoksen, Henrik; Hvidsten, Sverre. (2016) Effect of static mechanical strain on the DC conductivity of extruded cross-linked polyethylene cable insulation.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Lesaint, Cedric Michel; Risinggård, Vetle Meland; Hestad, Øystein; Hvidsten, Sverre; Glomm, Wilhelm. (2016) Self-healing composites for high voltage electrical insulation.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Madshaven, Inge; Smalø, Hans Sverre; Unge, Michael; Hestad, Øystein Leif Gurandsrud. (2016) Photoionization Model for the Transition to Fast Mode Streamers in Dielectric Liquids.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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
  Vitenskapelig artikkel

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 Universita di Bologna
  Mastergradsoppgave

2014

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

2012

• Hestad, Øystein Leif; Mauseth, Frank; Kyte, Ruth Helene. (2012) Electrical conductivity of medium voltage XLPE insulated cables.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2011

• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel

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
  Vitenskapelig artikkel
• 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. Norges teknisk-naturvitenskapelige universitet Doktoravhandlinger ved NTNU, 1503-8181 (2010:243)
  Doktorgradsavhandling

2008

• Lundgaard, Lars Esben; Linhjell, Dag; Hestad, Øystein Leif Gurandsrud; Borlaug, Jan-Trygve. (2008) High Frequency dielectric Response of Paper/Oil Insulation.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Hestad, Øystein Leif Gurandsrud; Lundgaard, Lars Esben. (2008) Streamer Inception in Cyclohexane Above and Below Freezing Point.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2006

• Hestad, Øystein Leif; Hvidsten, Sverre. (2006) Condensation of water vapour in XLPE insulation at different cooling rates and pressures.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2005

• Lundgaard, Lars Esben; Hestad, Øystein Leif; Ingebrigtsen, Stian. (2005) Review of test method for dielectric properties of liquids for HV transformer application.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• Hestad, Øystein Leif; Ingebrigtsen, Stian; Lundgaard, Lars Esben. (2005) Streamer initiation in cyclohexane, Midel 7131 and Nytro 10X.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
• 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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

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.
  Vitenskapelig Kapittel/Artikkel/Konferanseartikkel