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Hans Helmer Sæternes

Research Scientist

Hans Helmer Sæternes

Research Scientist

Hans Helmer Sæternes
Phone: 932 16 340
Department: Electric Power Technology
Office: Trondheim

Publications and responsibilities

Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1716051

The main objective of this study is to identify reliable insulation materials and systems for novel AC and DC subsea power connectors for oil and gas exploitation. A combined solid-liquid insulation system might be radically altered if the materials are not compatible. Different combinations of rele...

Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1142937

Electrical treeing can be the precursor to catastrophic failure for electrical insulation materials and hence significantly shorten their service lifetime. Considering that damage inside the composites (thermoset insulation materials containing fillers) is difficult to detect and particularly to rep...

Year 2014
Type Part of a book/report
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1047531

Power electronics used for HVDC converters will stress cable insulation with a DC voltage with superimposed transients. The effect these transients have on the performance of the polymeric cable insulation is yet not clear. The main purpose of this work has been to investigate the effect of such tra...

Year 2013
Type Part of a book/report
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1038439

For many subsea HVDC cable systems, the DC current is transmitted through the HV cable in a voltage source converter (VSC) - HVDC scheme. Modulated upon the DC voltage are harmonics, which originate from the switching feature of the VSC stations. The main purpose of this paper is to examine the effe...

Year 2013
Type Part of a book/report
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+938785

The purpose of this work was to study the effect of hydrostatic pressure on the initiation and growth of electrical trees in a silicone insulation material for electrical apparatus. In this study a commercial available light transparent silicone material was subjected to a hydrostatic pressure in th...

Year 2012
Type Part of a book/report