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Positive third mode streamers in insulating oil

Positive third mode streamers in insulating oil

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Sammendrag
Third mode streamers have been studied in the mineral oil Nytro 10 XN, gas-to-liquid oil Diala S4 ZX-1 and the high viscosity white oil Primol 352, in an 80 mm point-plane gap under step impulse voltage. Third mode streamer velocities were in the range 4–60 km/s. The "acceleration" of the average velocity with increasing voltage is not due to third mode, and third mode existed in a wide voltage range in both Nytro 10 XN and Primol 352. The voltage where third mode becomes common is almost the same in Nytro 10 XN and Diala S4 ZX-1, indicating that the presence of aromatics may have little influence over the initiation voltage for third mode. Onset voltage for third mode was very low in Primol 352.
Oppdragsgiver
  • Norges forskningsråd / 228850
Språk
Engelsk
Forfatter(e)
Institusjon(er)
  • SINTEF Energi AS / Elkraftteknologi
  • Sverige
År
2017
Publisert i
Proceedings of IEEE International Conference on Dielectric Liquids
ISSN
2153-3725
Forlag
IEEE conference proceedings
Bok
2017 IEEE 19th International Conference on Dielectric Liquids - ICDL
Hefte nr.
2017
ISBN
978-1-5090-4877-9