Voltage-time characteristics of particle-initiated impulse breakdown in SF/sub 6/ and SF/sub 6/-N/sub 2/
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
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Related Subjects
24 POWER TRANSMISSION AND DISTRIBUTION
COAXIAL CABLES
BREAKDOWN
NITROGEN
SULFUR FLUORIDES
CONTAMINATION
DELAY CIRCUITS
ELECTRIC POTENTIAL
EXPERIMENTAL DATA
GAS FLOW
THEORETICAL DATA
CABLES
CONDUCTOR DEVICES
DATA
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
ELEMENTS
EQUIPMENT
FLUID FLOW
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
INFORMATION
NONMETALS
NUMERICAL DATA
SULFUR COMPOUNDS
420800* - Engineering- Electronic Circuits & Devices- (-1989)
200300 - Electric Power Engineering- Power Transmission & Distribution- (-1989)