NDLI: Comparative study of streamer phenomena in mineral, synthetic and natural ester oils under lightning impulse voltage

Content Provider	IEEE Xplore Digital Library
Author	Viet-Hung Dang Beroual, A. Perrier, C.
Copyright Year	2010
Description	Author affiliation: Distinguished Visiting Professor, Aramco Chair in Electrical Power, King Saud University Riyadh, Saudi Arabia (Beroual, A.) \|\| AREVA T & D Power Transformers - Technology, Innovation & Competence Center (TICC), 91 300 Massy, France (Perrier, C.) \|\| Ecole Centrale de Lyon, AMPERE CNRS UMR 5005, 36 Avenue Guy de Collongue, 69134 Ecully, France (Viet-Hung Dang)
Abstract	This paper presents the experimental results of a comparative study of mineral oils, synthetic ester oil and natural ester oils (vegetable oils) issued from different origins through the analyse of the initiation threshold voltage of streamers, their pattern and their stopping length (final length) Lf as well as the associated current and electrical charge, in a point - plane electrode arrangement submitted to a lightning impulse voltage (1.2/50 µs). It's shown that the streamers are filamentary in the different tested oils whatever the polarity of voltage. Lf is longer when the point is positive than when it's negative whatever the oil. It's is generally longer in ester oils (natural and synthetic) than in some mineral oils. When the point is negative, Lf can be ten times higher in ester oils than in mineral ones. Basing on the stopping length of streamers, the positive polarity appears as the most unfavorable one for industrial applications and the dielectric strength of mineral oils we tested are generally better (in the considered experimental conditions) than that of ester oils.
Starting Page	560
Ending Page	563
File Size	1628604
Page Count	4
File Format	PDF
ISBN	9781424482832
e-ISBN	9781424482863
DOI	10.1109/ICHVE.2010.5640765
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-10-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes Vegetable oils Liquids Minerals Power transformers Petroleum
Content Type	Text
Resource Type	Article

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