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Author Antonov, G.I.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1996
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics
Subject Keyword Electric breakdown ♦ Power transformer insulation ♦ Oil insulation ♦ Voltage ♦ Electrodes ♦ Dielectric liquids ♦ Partial discharges ♦ Surface discharges ♦ Electrostatics ♦ Optical propagation
Abstract Breakdown in insulating liquids can be described satisfactorily by the Thomas-Watson-Forster hypothesis. This approach was developed and supplemented concerning criteria of assessment: the size of partial discharge region and the field on-axis at the surface, the electrostatic component of pressure, the wall velocity (mobility), the conditions of propagation. In the paper are suggested the computer models which allow to assess the electrical strength of insulating system under the stress of lightning and switching impulses, AC and long-time test voltage (thousand of hours). It can be used for determining the inception voltage for different uniform configurations. Conductor insulations and barriers disposed between the electrodes are studied in addition to the oil gap between bare electrodes. These models take into account the discharge development on the solid/liquid interface. Experimental and theoretical results are in satisfactory agreement.
Description Author affiliation: Ukrainian Res. & Technol. Transformer Inst., Zaporozhye, Ukraine (Antonov, G.I.)
ISBN 0780335600
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1996-07-15
Publisher Place Italy
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 233.71 kB
Page Count 3
Starting Page 313
Ending Page 315


Source: IEEE Xplore Digital Library