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Influence of impurities and additives on negative streamers in paraffinic model oil

Influence of impurities and additives on negative streamers in paraffinic model oil

Kategori
Vitenskapelig artikkel
Sammendrag
The non-breakdown and breakdown streamers in paraffinic model oil were investigated under negative step voltages. Experiments were performed with the point-plane gap of 8 cm and voltage up to 540 kV. Streamer behaviors were observed with shape, stopping length, velocity, current and light emission pulses. Carbon particles markedly reduce inception and breakdown voltages of streamers, while dissolved gases have a little effect on these voltages. Both low ionization potential and electron scavenging additives accelerate the streamers. However, the electron scavenger shows a much stronger influence on streamers than the low ionization potential additive. © 1994-2012 IEEE.
Oppdragsgiver
  • Research Council of Norway (RCN) / 200631
Språk
Engelsk
Forfatter(e)
Institusjon(er)
  • Norges teknisk-naturvitenskapelige universitet
  • SINTEF Energi AS / Elkraftteknologi
  • Sverige
År
Publisert i
IEEE transactions on dielectrics and electrical insulation
ISSN
1070-9878
Årgang
20
Hefte nr.
3
Side(r)
876 - 886