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Hallvard Faremo

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Hallvard Faremo

Seniorforsker

Hallvard Faremo
Telefon: 930 29 887
Mobil: 930 29 887
Avdeling: Elkraftteknologi
Kontorsted: Trondheim

Publikasjoner og ansvarsområder

Publikasjoner

Publikasjon

Remnant Static Mechanical Stresses and Water Tree Ageing of XLPE Power Cables

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1258149

The main purpose of the work presented in this paper was to experimentally examine possible enhancement of water treeing caused by remnant mechanical stresses, frozen-in during the manufacturing process of extruded XLPE power cables. The experiments were performed using 3m long samples of 12 kV XLPE...

Forfattere Ildstad Erling Plassen Kurt-Albert Grov Faremo Hallvard
År 2016
Type Konferanseartikkel/Bokkapittel
Publikasjon

Wet designs for HV submarine power cables

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1258112

This paper presents an evaluation and results from a water aging test performed at 10 kV/mm - 500 Hz of a HV 52 kV XLPE core. Water permeation tests and associated modelling have been performed on power cores with a PE-sheath only and a non-impervious water barrier to evaluate the effect of the “sem...

Forfattere Karlstrand Johan Furuheim Knut-Magne Wølneberg Hege Marie Hvidsten Sverre Faremo Hallvard
År 2016
Type Konferanseartikkel/Bokkapittel
Publikasjon

Long Term Qualification of XLPE Electrical Insulation Systems for Offshore Deep Water Cables

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1258116

There is an increasing demand for subsea electrical power transmission in the oil- and gas industry. Electrical power is mainly required for subsea pumps, compressors and for direct electrical heating of flowlines. The majority of subsea processing equipment is installed at water depths less than 10...

Forfattere Faremo Hallvard Bengtsson Magnus Kvarme Hans
År 2016
Type Konferanseartikkel/Bokkapittel
Publikasjon

Watertight Cable Designs in Hydropower Generation Plants

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1258136

This paper considers the problems with induced currents in copper screens and aluminium laminate, consequences and improvements for a 24 kV watertight XLPE cable system. Repeated faults on a heavily loaded new cable system installed for the generators of a Norwegian hydropower generation station res...

Forfattere Sivertsvoll Børre Johansen Rønningen Terje Faremo Hallvard Lervik Jens Kristian Hønsi Kåre Wilnes Rolf Jacobsen Ole Kristian Halvorson Hans Lavoll
År 2016
Type Konferanseartikkel/Bokkapittel
Publikasjon

Handbook: Protective Devices in 24 kV ACC Installations

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1110403

This Handbook is revised and somewhat updated from the original issue of 1994. The Handbook gives recommendations about choices and correct use of overvoltage protection in lightning prone area, corrosion protection, and choices of open or tight ACC line configurations, and measures to protect the i...

Forfattere Alstad Kjell Faremo Hallvard
År 2014
Type Rapport
Publikasjon

Enhancement of Water Tree initiation due to residual and applied Mechanical Strain on XLPE Cables

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1047527

This paper presents results from laboratory water tree experiments performed on samples of commercially available 6/10 kV XLPE insulated cables. The main purpose of the investigation was to examine possible water tree enhancement, due to mechanical tension of the insulation. During water tree ageing...

Forfattere Ildstad Erling Aarseth Simon Årdal Faremo Hallvard
År 2013
Type Konferanseartikkel/Bokkapittel
Publikasjon

Initiation of vented water trees from the conductor screen of MV XLPE insulated cables

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+938797

It has previously been shown for service aged XLPE cables that porous structures in the conductor screen do develop and serve as paths for contaminants and corrosion products from the aluminum conductor initiating vented water trees. It was found that a prerequisite for the formation of such structu...

Forfattere Faremo Hallvard #Selsjord #Mildrid Hvidsten Sverre Bengtsson Karl Magnus Ryen Arve
År 2012
Type Konferanseartikkel/Bokkapittel
Publikasjon

Water Tree Growth of Wet XLPE Cables Stressed with DC and High Frequency AC Voltage Superimposed

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+938802

Power electronics used for HVDC converters will stress a cable with a DC voltage with overlaid transients. The effect of these transients on the performance of the polymeric cable insulation is yet not known and the main purpose of this work has been to investigate the effect of this kind of voltage...

Forfattere Mauseth Frank Amundsen Martin Faremo Hallvard
År 2012
Type Konferanseartikkel/Bokkapittel
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