NDLI: Transition to fast streamers in mineral oil in the presence of insulating solids

Content Provider	IEEE Xplore Digital Library
Author	Lesaint, O. Massala, G.
Copyright Year	1996
Description	Author affiliation: CNRS, Grenoble, France (Lesaint, O.)
Abstract	This paper presents a study of the transition to fast streamers in mineral oil in overvolted point-plane gaps. Streamer propagation is studied in 5 cm and 10 cm gaps, either in the liquid alone or in the presence of solid surfaces parallel or perpendicular to the gap axis. The experiments presented concern the visualization of streamers, the measurement of breakdown and acceleration voltages. In the liquid alone, above some critical voltage, a large increase in propagation velocity is recorded from 2 km/s up to about 100 km/s. The presence of insulating solids parallel to the electric field is greatly in favor of the inception and propagation of fast streamers (velocities up to 300 km/s have been measured). Conversely it is observed that a solid perpendicular to the electric field stops more efficiently fast streamers than slow ones, which easily creep and get round such obstacles.
Starting Page	737
Ending Page	740
File Size	352572
Page Count	4
File Format	PDF
ISBN	0780335317
ISSN	1089084X
DOI	10.1109/ELINSL.1996.549450
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-06-16
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Minerals Petroleum Solids Breakdown voltage Visualization Accelerometers Acceleration Dielectrics and electrical insulation Electric variables measurement Velocity measurement
Content Type	Text
Resource Type	Article

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