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Title: Investigation of high-voltage particle-initiated breakdown in gas-insulated systems. Final report

Abstract

An experimentl and theoretical study of the processes involved in electrical breakdown in compressed gases, where the breakdown is initiated by conducting particles is described. A great deal of detailed quantitative data is presented relating to particle-initiated breakdown in large coaxial and uniform electrode systems at voltages of several hundred kV. One finding of interest involves the demonstration that there is a critical particle-to-electrode spacing at the instant of breakdown in SF/sub 6/ at gas pressures typically used in practical power transmission equipment. The variation of this critical spacing with SF/sub 6/ gas pressure has been determined and the results are reported. The statistical nature of particle-initiated breakdown has also been studied and the effects of the presence of multiple particles and of the duration of application of voltage reported. Further results given include data for different gases and gas mixtures, particle sizes and materials, corona and wind effects, particle deformation, ac and impulse voltages, and other factors.

Authors:
Publication Date:
Research Org.:
Westinghouse Electric Corp., Pittsburgh, PA (USA). Research and Development Center
OSTI Identifier:
6239733
Report Number(s):
EPRI-EL-1007
DOE Contract Number:  
EX-76-C-01-2125
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; AIR; BREAKDOWN; CARBON DIOXIDE; ELECTRICAL INSULATION; FREONS; GAS-INSULATED CABLES; NITROGEN; POWER SUBSTATIONS; SULFUR FLUORIDES; CORONA DISCHARGES; EHV AC SYSTEMS; EXPERIMENTAL DATA; GASES; GRAPHS; HVAC SYSTEMS; MEASURING METHODS; MIXTURES; PARTICLES; TABLES; UNDERGROUND POWER TRANSMISSION; AC SYSTEMS; CABLES; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CONDUCTOR DEVICES; CRYOGENIC FLUIDS; DATA; DATA FORMS; DISPERSIONS; ELECTRIC CABLES; ELECTRIC DISCHARGES; ELECTRICAL EQUIPMENT; ELEMENTS; EQUIPMENT; FLUIDS; FLUORIDES; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; HALOGENATED ALIPHATIC HYDROCARBONS; INFORMATION; NONMETALS; NUMERICAL DATA; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; POWER SYSTEMS; POWER TRANSMISSION; REFRIGERANTS; SULFUR COMPOUNDS; 200301* - Power Transmission & Distribution- AC Systems, EHV & UHV- (-1989)

Citation Formats

Wootton, R. E. Investigation of high-voltage particle-initiated breakdown in gas-insulated systems. Final report. United States: N. p., 1979. Web. doi:10.2172/6239733.
Wootton, R. E. Investigation of high-voltage particle-initiated breakdown in gas-insulated systems. Final report. United States. doi:10.2172/6239733.
Wootton, R. E. Thu . "Investigation of high-voltage particle-initiated breakdown in gas-insulated systems. Final report". United States. doi:10.2172/6239733. https://www.osti.gov/servlets/purl/6239733.
@article{osti_6239733,
title = {Investigation of high-voltage particle-initiated breakdown in gas-insulated systems. Final report},
author = {Wootton, R. E.},
abstractNote = {An experimentl and theoretical study of the processes involved in electrical breakdown in compressed gases, where the breakdown is initiated by conducting particles is described. A great deal of detailed quantitative data is presented relating to particle-initiated breakdown in large coaxial and uniform electrode systems at voltages of several hundred kV. One finding of interest involves the demonstration that there is a critical particle-to-electrode spacing at the instant of breakdown in SF/sub 6/ at gas pressures typically used in practical power transmission equipment. The variation of this critical spacing with SF/sub 6/ gas pressure has been determined and the results are reported. The statistical nature of particle-initiated breakdown has also been studied and the effects of the presence of multiple particles and of the duration of application of voltage reported. Further results given include data for different gases and gas mixtures, particle sizes and materials, corona and wind effects, particle deformation, ac and impulse voltages, and other factors.},
doi = {10.2172/6239733},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {3}
}