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Validity of the law of similarity for impulse and DC breakdown of gases in the vicinity of the Paschen’s minimum

Authorized Users Only
2023
Authors
Kartalović, Nenad M.
Jusić, Alija
Nikezić, Dušan P.
Stanković, Koviljka
Article (Published version)
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Abstract
The study discusses the validity of the law of similarity for the impulse breakdown of gases at low pressure and small inter-electrode distances. The research has been done theoretically, experimentally and numerically. The experiments were conducted under well-controlled laboratory conditions. The combined measurement uncertainty was less than 5%. The experiments were carried out with gases SF6, N2 and He. The electrodes were made of copper, but also of metals with different values of the work function. The obtained results are presented through the impulse characteristics for similar systems. Such a presentation only provided qualitative information. In order to obtain quantitative information, a modified Wilcoxon Rank Sum Test (U test) was performed. The obtained results show that the law of similarity is valid for the DC breakdown of gases, but it is not valid for the impulse breakdown of gases. It can be concluded that the law of similarity is inapplicable for the design of gas-in...sulated systems under low pressure at small values of the inter-electrode distance.

Keywords:
Gas-filled surge arrester / Geiger–Müller counter / Impulse breakdown of gases / Impulse characteristics / Law of similarity / Wilcoxon rank sum test
Source:
Vacuum, 2023, 207, 111683-

DOI: 10.1016/j.vacuum.2022.111683

ISSN: 0042-207X

Scopus: 2-s2.0-85142166310
[ Google Scholar ]
URI
https://vinar.vin.bg.ac.rs/handle/123456789/10508
Collections
  • Radovi istraživača
Institution/Community
Vinča
TY  - JOUR
AU  - Kartalović, Nenad M.
AU  - Jusić, Alija
AU  - Nikezić, Dušan P.
AU  - Stanković, Koviljka
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10508
AB  - The study discusses the validity of the law of similarity for the impulse breakdown of gases at low pressure and small inter-electrode distances. The research has been done theoretically, experimentally and numerically. The experiments were conducted under well-controlled laboratory conditions. The combined measurement uncertainty was less than 5%. The experiments were carried out with gases SF6, N2 and He. The electrodes were made of copper, but also of metals with different values of the work function. The obtained results are presented through the impulse characteristics for similar systems. Such a presentation only provided qualitative information. In order to obtain quantitative information, a modified Wilcoxon Rank Sum Test (U test) was performed. The obtained results show that the law of similarity is valid for the DC breakdown of gases, but it is not valid for the impulse breakdown of gases. It can be concluded that the law of similarity is inapplicable for the design of gas-insulated systems under low pressure at small values of the inter-electrode distance.
T2  - Vacuum
T1  - Validity of the law of similarity for impulse and DC breakdown of gases in the vicinity of the Paschen’s minimum
VL  - 207
SP  - 111683
DO  - 10.1016/j.vacuum.2022.111683
ER  - 
@article{
author = "Kartalović, Nenad M. and Jusić, Alija and Nikezić, Dušan P. and Stanković, Koviljka",
year = "2023",
abstract = "The study discusses the validity of the law of similarity for the impulse breakdown of gases at low pressure and small inter-electrode distances. The research has been done theoretically, experimentally and numerically. The experiments were conducted under well-controlled laboratory conditions. The combined measurement uncertainty was less than 5%. The experiments were carried out with gases SF6, N2 and He. The electrodes were made of copper, but also of metals with different values of the work function. The obtained results are presented through the impulse characteristics for similar systems. Such a presentation only provided qualitative information. In order to obtain quantitative information, a modified Wilcoxon Rank Sum Test (U test) was performed. The obtained results show that the law of similarity is valid for the DC breakdown of gases, but it is not valid for the impulse breakdown of gases. It can be concluded that the law of similarity is inapplicable for the design of gas-insulated systems under low pressure at small values of the inter-electrode distance.",
journal = "Vacuum",
title = "Validity of the law of similarity for impulse and DC breakdown of gases in the vicinity of the Paschen’s minimum",
volume = "207",
pages = "111683",
doi = "10.1016/j.vacuum.2022.111683"
}
Kartalović, N. M., Jusić, A., Nikezić, D. P.,& Stanković, K.. (2023). Validity of the law of similarity for impulse and DC breakdown of gases in the vicinity of the Paschen’s minimum. in Vacuum, 207, 111683.
https://doi.org/10.1016/j.vacuum.2022.111683
Kartalović NM, Jusić A, Nikezić DP, Stanković K. Validity of the law of similarity for impulse and DC breakdown of gases in the vicinity of the Paschen’s minimum. in Vacuum. 2023;207:111683.
doi:10.1016/j.vacuum.2022.111683 .
Kartalović, Nenad M., Jusić, Alija, Nikezić, Dušan P., Stanković, Koviljka, "Validity of the law of similarity for impulse and DC breakdown of gases in the vicinity of the Paschen’s minimum" in Vacuum, 207 (2023):111683,
https://doi.org/10.1016/j.vacuum.2022.111683 . .

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