Cristin-resultat-ID: 938785
Sist endret: 15. august 2012, 13:13
NVI-rapporteringsår: 2012
Resultat
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2012

The effect of hydrostatic pressure on electrical treeing in silicone cable joints

Bidragsytere:
  • Gunnar Berg
  • Hans Helmer Sæternes
  • Jørund Aakervik og
  • Sverre Hvidsten

Bok

Conference Record of the 2012 IEEE International Symposium on Electrical Insulation
ISBN:
  • 978-1-4673-0486-3

Utgiver

IEEE conference proceedings
NVI-nivå 1

Serie

Conference record of IEEE International Symposium on Electrical Insulation
ISSN 1089-084X
NVI-nivå 1

Om resultatet

Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Publiseringsår: 2012
Hefte: 2012
Sider: 609 - 612
ISBN:
  • 978-1-4673-0486-3

Klassifisering

Fagfelt (NPI)

Fagfelt: Elkraft og elektrotekniske fag
- Fagområde: Realfag og teknologi

Beskrivelse Beskrivelse

Tittel

The effect of hydrostatic pressure on electrical treeing in silicone cable joints

Sammendrag

The purpose of this work was to study the effect of hydrostatic pressure on the initiation and growth of electrical trees in a silicone insulation material for electrical apparatus. In this study a commercial available light transparent silicone material was subjected to a hydrostatic pressure in the range 1 to 100 bar at 30 °C. The test objects were concentric cylinders with a tinned copper conductor as a high voltage electrode. The insulation thickness was 4 mm and stainless steel needles with tip radius of 4 µm were inserted in the conductor with a distance of 2 and 3 mm from the insulation surface. The joints were submerged in water which also acted as a ground electrode. During the high pressure tests the samples were placed in a stainless steel vessel with optical windows. High voltage was fed into the vessel by using specially designed miniature cable penetrators. In order to avoid partial discharges at the cable ends outside the vessel, silicone oil filled cable terminations were installed. The tree growth was monitored by measuring partial discharges (pd), together with recording of light emission from the discharge channel. The results show that tree growth in silicone rubber rapidly leads to breakdown. Pd inception is suppressed with increasing hydrostatic pressure, while the tree growth rate is slightly increased

Bidragsytere

Gunnar Berg

  • Tilknyttet:
    Forfatter
    ved Elkraftteknologi ved SINTEF Energi AS

Hans Helmer Sæternes

  • Tilknyttet:
    Forfatter
    ved Elkraftteknologi ved SINTEF Energi AS

Jørund Aakervik

  • Tilknyttet:
    Forfatter
    ved Elkraftteknologi ved SINTEF Energi AS

Sverre Hvidsten

  • Tilknyttet:
    Forfatter
    ved Elkraftteknologi ved SINTEF Energi AS
1 - 4 av 4

Resultatet er en del av Resultatet er en del av

Conference Record of the 2012 IEEE International Symposium on Electrical Insulation.

IEEE, .. 2012, IEEE conference proceedings. Vitenskapelig antologi/Konferanseserie
1 - 1 av 1