Cristin-resultat-ID: 1930873
Sist endret: 2. september 2021, 14:34
NVI-rapporteringsår: 2021
Resultat
Vitenskapelig artikkel
2021

Arc extinction with nitrogen at 1-40 bar in a puffer-like contact configuration

Bidragsytere:
  • Nina Sasaki Støa-Aanensen
  • Camilla Espedal
  • Oddgeir Rokseth
  • Erik Jonsson og
  • Magne Runde

Tidsskrift

Plasma Physics and Technology
ISSN 2336-2626
e-ISSN 2336-2634
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2021
Publisert online: 2021
Volum: 8
Hefte: 1

Importkilder

Scopus-ID: 2-s2.0-85115304257

Beskrivelse Beskrivelse

Tittel

Arc extinction with nitrogen at 1-40 bar in a puffer-like contact configuration

Sammendrag

To develop cost-efficient subsea switchgear for large sea depths, the extinction of arcs under high filling pressures must be understood. In this work, arc-extinction experiments have been performed with a puffer-like contact configuration using nitrogen at different filling pressures as the current interruption medium. The main finding is that, for the given contact configuration, the current interruption capability was lower at 20 and 40 barabs than at 1 and 10 barabs. While higher pressures result in higher cooling flow rates and longer flow times given the same puffer volume, compression spring and nozzle geometry; it does not necessarily improve the arc-extinction capability. This is probably because higher filling pressures increase the arc voltage and total energy dissipated in the arcing zone. Because the filling pressure greatly influences the flow characteristics, the puffer design should be optimized for each pressure level. Keywords: Current interruption, subsea switchgear, medium voltage, high-pressure nitrogen

Bidragsytere

Nina Sasaki Støa-Aanensen

  • Tilknyttet:
    Forfatter
    ved Elkraftteknologi ved SINTEF Energi AS

Camilla Espedal

  • Tilknyttet:
    Forfatter
    ved Elkraftteknologi ved SINTEF Energi AS

Oddgeir Rokseth

  • Tilknyttet:
    Forfatter
    ved Elkraftteknologi ved SINTEF Energi AS

Erik Jonsson

  • Tilknyttet:
    Forfatter
    ved Elkraftteknologi ved SINTEF Energi AS

Magne Eystein Runde

Bidragsyterens navn vises på dette resultatet som Magne Runde
  • Tilknyttet:
    Forfatter
    ved Elkraftteknologi ved SINTEF Energi AS
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