Blar i NTNU Open på forfatter "Grav, Torstein"
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Currents in AC stressed liquid insulated needle plane gap
Grav, Torstein; Lundgaard, Lars Esben (Chapter, 2014)Currents and space charge phenomena in 8 different dielectric liquids have been investigated for an ac stressed needle plane gap. Applied frequencies ranged from 0.1 Hz to 100 Hz. A high resolution analogue-digital converter ... -
Mechanisms Governing the occurrence of Partial Discharges in Insulation Liquids
Grav, Torstein (Master thesis, 2013)Breakdown of electrical equipment is unwanted and the use of reliable methods of insulation are therefore necessary. Liquid insulation is one preferred material for electrical devices used in subsea installations due to ...