Voltage-Time Characteristics of Particle-Initiated Impulse Breakdown in SF6 and SF6-N2

The paper comprises a theoretical and experimental investigation into the impulse breakdown voltage-time characteristics of a spherical- particle-contaminated coaxial-cylinder gap in compressed SF 6 and SF 6 -N 2 mixture. The experimental work was carried out on a 25/70-mm diameter coaxial-cylinder...

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Bibliographic Details
Published in:IEEE transactions on power apparatus and systems 1983-05, Vol.PAS-102 (5), p.1352-1360
Main Authors: Eteiba, Magdy B., Rizk, Farouk A. M.
Format: Article
Language:English
Subjects:
Breakdown voltage
Coaxial components
Delay effects
Electric breakdown
Electrodes
Electrons
Shape
Sulfur hexafluoride
Surges
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Summary:The paper comprises a theoretical and experimental investigation into the impulse breakdown voltage-time characteristics of a spherical- particle-contaminated coaxial-cylinder gap in compressed SF 6 and SF 6 -N 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-μs and 1.2/50-μs 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.
ISSN:0018-9510
2995-6323
DOI:10.1109/TPAS.1983.318085