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

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 ligh...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on dielectrics and electrical insulation 2013-06, Vol.20 (3), p.876-886
Main Authors: Dung, N. V., Hoidalen, H. K., Linhjell, D., Lundgaard, L. E., Unge, M.
Format: Article
Language:English
Subjects:
Additives
Breakdown
Breakdown voltage
Carbon
Electric breakdown
Electric potential
Electrical insulation
Gases
initiation
Ionization potentials
propagation
Scavengers
Scavenging
Shape
stopping length
Streamers
Streaming media
velocity
Voltage
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:1070-9878
1558-4135
DOI:10.1109/TDEI.2013.6518957