DocumentCode
305112
Title
Insulator charging in SF6 produced by impulse voltage
Author
Vasconcelos, F.H. ; Cornick, Keith J.
Author_Institution
Dept. de Engenharia Eletrica, Univ. Federal de Minas Gerais, Belo Horizonte, Brazil
Volume
1
fYear
1996
fDate
20-23 Oct 1996
Firstpage
145
Abstract
This work is concerned with the study of the charging process on insulators. The charges were produced by discharges inside a test-cell containing SF6. The discharges were due to impulse voltage applied to a point-plane arrangement with the dielectric covering the flat electrode. The charging current was measured along with the impulse voltage. The surface charge deposited on the dielectric was scanned using an electrostatic probe. The results presented are concerned with the previous state of the samples (in terms of charging) associated with change in polarity and in magnitude of the applied voltage
Keywords
SF6 insulation; epoxy insulators; gas insulated switchgear; impulse testing; insulator testing; polymer insulators; surface charging; GIS; SF6; applied voltage magnitude; charging current; electrostatic probe; epoxy insulators; flat electrode; gas insulated equipment; impulse voltage; insulator charging; point-gas-dielectric-plane arrangement; point-plane arrangement; polarity; polycarbonate insulators; surface charge; Current measurement; Dielectric measurements; Dielectrics and electrical insulation; Electrodes; Electrostatic measurements; Probes; Surface charging; Surface discharges; Testing; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Electrical Insulation and Dielectric Phenomena, 1996., IEEE 1996 Annual Report of the Conference on
Conference_Location
Millbrae, CA
Print_ISBN
0-7803-3580-5
Type
conf
DOI
10.1109/CEIDP.1996.564645
Filename
564645
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