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Effects of electron-attaching and electron-releasing additives on streamers in liquid cyclohexane

The effects of electron-attaching and electron-releasing additives in cyclohexane on the initiation and propagation of positive and negative streamers have been studied quantitatively. Fast impulses (

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Published in:IEEE transactions on dielectrics and electrical insulation 2009-12, Vol.16 (6), p.1524-1535
Main Authors: Ingebrigtsen, S, Smalo, H S, Astrand, P-O, Lundgaard, LE
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Language:English
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creator Ingebrigtsen, S
Smalo, H S
Astrand, P-O
Lundgaard, LE
description The effects of electron-attaching and electron-releasing additives in cyclohexane on the initiation and propagation of positive and negative streamers have been studied quantitatively. Fast impulses (
doi_str_mv 10.1109/TDEI.2009.5361571
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Fast impulses (&lt;20 ns, &lt;40 kV) were applied on a 10 mm point-to-plane gap and studied by shadowgraphic imaging and a differential charge measurement technique. The properties of both positive and negative streamers depend on the specific electronic characteristic of the additives. Electron-attaching additives facilitate the propagation of negative streamers, whereas the most effective electron-releasing additives reduce initiation voltages and facilitate the propagation of positive streamers. Depending on the reactivity and concentration of the additives, streamer filaments become thinner and fewer while propagating faster and further. The Townsend-Meek theory for streamer inception in gases has been adapted to a solution and applied to analyze the voltage dependence of the positive streamer propagation. 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subjects Cyclohexane
Dielectrics
Electric potential
Electrical insulation
Electronics
Liquids
Solvents
Voltage
title Effects of electron-attaching and electron-releasing additives on streamers in liquid cyclohexane
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