Blar i Institutt for elkraftteknikk på forfatter "Pedersen, Atle"
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Effect of Barriers in Air Insulated Rod-Plane Gaps
Jørstad, Jonathan S (Master thesis, 2012)The purpose of the experiments conducted in this Master's thesis is to predict and explain the change in breakdown voltage when insulating barriers are introduced in a rod-plane gap arrangement. The experiments have been ... -
Electric Heating of Subsea Pipelines: Design and Testing of an Applicable Ring Core Transformer
Solheim, Kristian Thinn (Master thesis, 2013)As it becomes profitable to extract oil and gas from smaller and smaller reservoirs, jumpers (t-offs) connected to the main pipelines become necessary. This master?s thesis has investigated a simple transformer design which ... -
Investigation of Electrical Properties of a new low-GWP Insulation Gas - Comparison of AirPlus and Synthetic Air
Mong, Ruben (Master thesis, 2018)Sulfur hexafluoride (SF6) is a widely used insulation gas in medium- to high-voltage equipment due to its excellent dielectric properties. It has however one important weakness; a large global warming potential (GWP) of ... -
Multiple barrierer i inhomogene luftgap ved lynoverspenninger
Solbakken, Jan-Henrik (Master thesis, 2013)Føremålet med dei utførte forsøka i denne masteroppgåva er å kunna føresjå og forklara endringar i haldfastheita når multiple barrierar er nytta som isolasjon i eit stang-plate-gap.Forsøka vart utført med positiv ... -
Partial Discharges and Breakdown Voltage in Designs with Triple Junctions under AC Stress.
Korneliussen, Kristine (Master thesis, 2016)Today, manufacturers of medium voltage equipment are searching for alternatives to sulfur hexafluoride (SF$_6$) as the insulating gas. The advantageous thermal and molecular properties make it suitable as an insulating ... -
Streamer Charging of Dielectric Barriers in Inhomogeneous Air Gaps - Measurements of Surface Charge Depositions
Husøy, Martine (Master thesis, 2017)The purpose of this thesis is to conduct experiments on a rod-plane gap, with and without a dielectric barrier. The gap is connected to an impulse generator, which stresses the gap with a lightning impulse triggering ...