NDLI: Theoretical and experimental model for particle initiated breakdowns in GIS

Content Provider	IEEE Xplore Digital Library
Author	Indira, M.S. Ramu, T.S.
Copyright Year	1998
Description	Author affiliation: Dept. of High Voltage Eng., Indian Inst. of Sci., Bangalore, India (Indira, M.S.)
Abstract	Inadvertent failure of gas insulated system such as high voltage GIS is traced to a freak mechanism, in particle induced breakdown. While conducting (metallic) particles cause a direct breakdown of the gaseous insulation due to a high degree of non-uniformity of electric fields surrounding them, dielectric (insulation) particles give rise to disruptive discharges due to surface charges acquired by them in the strongly divergent electric field in their vicinity. The deleterious effects of particles are too well known to be enumerated. Since it is not always possible to fabricate GIS without parasitic floating and fixed particles, and scavenging the particles bordering on microscopic dimensions is very difficult, study of the particle aided breakdown study acquires particular significance in GIS. The effect of particles of either kind being the same; the reduction in the dielectric strength of the system, every effort should be made to either prevent outages due to them or workout means of stabilising the system in their presence. The present paper, attempts to make a small contribution in this direction.
Starting Page	697
Ending Page	700
File Size	391401
Page Count	4
File Format	PDF
ISBN	078034927X
ISSN	1089084X
DOI	10.1109/ELINSL.1998.694888
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-06-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electric breakdown Geographic Information Systems Breakdown voltage Dielectrics and electrical insulation Gas insulation Dielectric breakdown Nonuniform electric fields Electrodes Equations Surface discharges
Content Type	Text
Resource Type	Article

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