• Blister Test as Method of Measuring Adhesion of Solids on a Flat Surface 

      Liland, Knut Brede; Faremo, Hallvard; Furuheim, Knut-Magne (Journal article; Peer reviewed, 2019)
      The adhesion between coating and a flat metal surface has been investigated by measurements. The setup is based on the formation of a blister by injecting nitrogen gas under pressure between the coating and the substrate. ...
    • Comparison between synthetic ester and mineral oil impregnated transformer paper aging markers 

      Liland, Knut Brede; Linhjell, Dag; Lesaint, Cedric Michel; Ese, Marit-Helen Glomm; Lundgaard, Lars Esben; Mavrommatis, Pascal; Stjepanovic, Nenad Miroljub (Proceedings of IEEE International Conference on Dielectric Liquids;, Chapter; Peer reviewed, 2017)
      For transformers in service, aging markers from cellulose in oil such as furans, water, methanol and acids are measured for diagnostic purposes. The content of these indicators, measured in oil, may therefore vary with ...
    • Electric Field Enhancement Control in Active Junction of IGBT Power Module 

      Abdelmalik, Abdelghaffar Amoka; Liland, Knut Brede (Peer reviewed; Journal article, 2020)
      Dielectric liquids are incompressible, able to fill voids and have selfhealing effect and hence are being considered as alternative encapsulation materials to establish power electronics at ambient high pressure at subsea ...
    • Transformer Windings Ageing, diagnosis and asset management. Version 4 

      Lundgaard, Lars Esben; Liland, Knut Brede; Linhjell, Dag; Susa, Dejan; Ese, Marit-Helen; Selsbak, Cecilie Mørk; Kes, M; Lesaint, Cedric Michel (SINTEF Energi. Rapport;TR A7099, Research report, 2015)
      This report addresses state of the art in the field of transformer ageing and diagnostics, with emphasis on advising end-users on transformer asset management and on transformer specification. The basis is results from two ...