Browsing NTNU Open by Author "Subhana, Arik"
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Ageing of Technical Air and Technical Air with 7.5% C5-Fluoroketone by Free-Burning Arcs
Subhana, Arik; Støa-Aanensen, Nina Sasaki; Gammelsæter, Marte; Jonsson, Erik; Mauseth, Frank (Journal article; Peer reviewed, 2023)This paper reports on the effect of ageing by free-burning arcs in 7.5% C5-fluoroketone (C5-FK) with 92.5% technical air in comparison to that in technical air (80% N2, 20% O2) at 1.3bar absolute pressure. The gases are ... -
Lightning Impulse Testing in Short Air-Gaps and Memory Effect of Previous Discharges
Subhana, Arik; Støa-Aanensen, Nina Sasaki; Gammelsæter, Marte; Marskar, Robert; Mauseth, Frank (Peer reviewed; Journal article, 2024)This paper reports on an observed phenomenon of increasing breakdown voltage while performing standard up and down lightning impulse (LI) testing in short air-gaps with weakly non-uniform field in an enclosed volume. The ...