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Number of results
2009 | 115 | 6 | 1016-1018
Article title

Gas-Insulated Self-Breakdown Spark Gaps: Aspects on Low-Scattering and Long-Lifetime Switching

Content
Title variants
Languages of publication
EN
Abstracts
EN
The influence of the electric field distribution between the electrodes and the seed electron generation rate on the scattering of the breakdown voltage of SF_{6}-insulated spark gaps was investigated. The breakdown voltage scattering considerably can be reduced by applying large-gap-volume, uniform-field electrode profiles instead of spherical shaped electrodes. Moreover, uniform field electrode profiles exhibit an uniform discharge probability in the entire gap volume and following an almost uniform erosion of electrode material along the electrode's surface. This preserves electrode shape and switching performance of the spark gap for a long maintenance-free lifetime. Breakdown voltage scattering further can be reduced by increasing the seed electron generation in the gap by an auxiliary corona discharge adjacent to the main gap. The experimental observations are discussed on the basis of the volume time law for discharge initiation.
Keywords
EN
Year
Volume
115
Issue
6
Pages
1016-1018
Physical description
Dates
published
2009-06
References
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  • 3. P. Osmokrovic, B. Loncar, M. Gajic-Kvascev, IEEE Trans. Plasma Sci. 33, 1677 (2005)
  • 4. M. Finkel, W. Boeck, in: Conf. on Electric Instruments and Dielectric Phenomena, IEEE Dielectrics and Insulation Society, 2001, p. 436
  • 5. H. Prinz, Hochspannungsfelder, R. Oldenbourg Verlag, München 1969
  • 6. P.L. Levin, A.J. Hansen, D. Beatovic, H. Gan, J.H. Petrangelo, IEEE Trans. El. Ins. 28, 161 (1993)
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv115n622kz
Identifiers
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