Anomalous Positive Point Prebreakdown Behavior in Dielectric Liquids

Anomalous Positive Point Prebreakdown Behavior in Dielectric Liquids

An experimental study was performed to determine the nature of events which lead to electrical breakdown in the normal alkanes from n-pentane to n-decane, and toluene. Disturbances prior to breakdown were rendered visibl by means of a shadowgraph optical system. Both electronically framed and high r...

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Veröffentlicht in:IEEE transactions on electrical insulation 1984-04, Vol.EI-19 (2), p.93-100
Hauptverfasser: McKenny, P. J., McGrath, P. B.
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Applied sciences
Electrical engineering. Electrical power engineering
Exact sciences and technology
Materials
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McGrath, P. B.
description An experimental study was performed to determine the nature of events which lead to electrical breakdown in the normal alkanes from n-pentane to n-decane, and toluene. Disturbances prior to breakdown were rendered visibl by means of a shadowgraph optical system. Both electronically framed and high resolution single exposure photographs were taken during the prebreakdown period. Two distinct types of prebreakdown disturbance were observed whe using a point anode. In addition to the normally expected supersonic streamer, a new subsonic bush-like structure was recorded. Factors affecting the generation of the subsonic event were investigated, and are considered in terms of a gas phase process.
doi_str_mv 10.1109/TEI.1984.298779
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subjects Applied sciences
Electrical engineering. Electrical power engineering
Exact sciences and technology
Materials
title Anomalous Positive Point Prebreakdown Behavior in Dielectric Liquids
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