skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Voltage-time characteristics of particle-initiated impulse breakdown in SF/sub 6/ and SF/sub 6/-N/sub 2/

Journal Article · · IEEE Trans. Power Appar. Syst.; (United States)

The paper comprises a theoretical and experimental investigation into the impulse breakdown voltage-time characteristics of a sphericalparticle-contaminated coaxial-cylinder gap in compressed SF/sub 6/ and SF/sub 6/-N/sub 2/ mixture. The experimental work was carried out on a 25/70-mm diameter coaxial-cylinder gap with a 3.2-mm spherical particle attached to the high-voltage electrode, at a gas pressure of 0.3 MPa under 0.5/50-..mu..s and 1.2/50-..mu..s impulses of both polarities. Whenever possible the results were compared to those previously obtained on a clean system from which the particle effect on impulse breakdown voltage and delay time was identified. The theoretical and experimental results of breakdown delay time distributions, 5% and 95% probability voltage-time curves and breakdown voltage probability functions were found to be in satisfactory agreement.

Research Organization:
Institut de recherche d' Hydro-Quebec (IREQ), Varennes, Quebec
OSTI ID:
5958105
Journal Information:
IEEE Trans. Power Appar. Syst.; (United States), Vol. 102:5
Country of Publication:
United States
Language:
English