NDLI: Effect of mobile conducting particles on the electrical strength of the insulation system of SF/sub 6/ insulated switchgear

Content Provider	IEEE Xplore Digital Library
Author	Labus-Nawrat, K. Grzybowski, S.
Copyright Year	1989
Description	Author affiliation: Inst. for Electrotech., Warsaw, Poland (Labus-Nawrat, K.)
Abstract	The authors present data obtained from tests conducted on an SF/sub 6/ GIS (gas-insulated switchgear) model, 123 kV, having coaxial cylinders of 240/80-mm diameter in the presence of mobile particles. In the case of a vertical GIS construction and in the presence of conducting particles, a great hazard to the insulation is shown to occur when overvoltages appear in service. There is a wide range of imminent particles since heavy and light particles are included. The presence of conducting particles in the case of a conic spacer insulator also causes a hazard to insulation due to overvoltages appearing in service. The detection of particles left after final assembly on site and of those located on the spacer insulators which were tested in 123-kV GIS is possible using tests with applied 185 kV AC voltage and tests with impulse voltage at 80% basic insulation level.<>
Starting Page	483
Ending Page	488
File Size	243391
Page Count	6
File Format	PDF
DOI	10.1109/CEIDP.1989.69593
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1989-10-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Geographic Information Systems Impulse testing Insulator testing Insulation testing Hazards Surges Voltage Switchgear Gas insulation Coaxial components
Content Type	Text
Resource Type	Article

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Effect of mobile conducting particles on the electrical strength of the insulation system of SF/sub 6/ insulated switchgear

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