Publikasjoner og ansvarsområder
Fault mechanisms of incorrectly installed force springs for ground screen connections in medium voltage cable systems
Partial Discharge Inception Voltage of Voids Enclosed in Epoxy/Mica versus Voltage Frequency and Temperature
In situ synthesis of epoxy nanocomposites with hierarchical surface-modiﬁed SiO2 clusters
Polymer nanocomposites are often produced using in situ approaches where an inorganic ﬁller (as the dispersed phase) is synthesized directly in an organic matrix. Such an approach generally leads to improved dispersion and reduced agglomeration of the ﬁller material. Epoxy-based nanocomposites have ...
Conditioning of high voltage XLPE cables in salt water - a review of ion diffusion and impact on water treeing
Partial Discharge Characterisation of Stator Windings Taken from a 50-year-old Norwegian Hydrogenerator
This paper presents results from laboratory measurements of partial discharge (PD) activity in stator bars taken from a 95 MVA hydrogenerator after 52 years in service. The generator has previously been subjected to off-line condition monitoring including partial discharge (PD) testing at both 0.1 a...
Effect of Elastic Modulus on the Tangential AC Breakdown Strength of Polymer Interfaces
In Situ Preparation of Epoxy-SiO2 Nanocomposites as High Voltage Insulation
In Situ Preparation of Epoxy-SiO2 Nanocomposites for High Voltage Insulation
Time domain dielectric response of field grading sleeves subjected to high humidity and temperatures
It is experienced that MV XLPE cable links including heat shrink cable joints can have a high electrical conductivity compared to the XLPE cable insulation. The field grading sleeve included in the joint design is proposed to be responsible for the reduced insulation resistance and is therefore stud...