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12 December 2024 Numerical simulation study on the influence mechanism of the ratio of the shell I.D. to the busbar O.D. (Rf) on the steady state temperature rise (Trise) of GIS
Yao Zheng, Zhi Ye, Chao Gao, Jungang Wang, Fusheng Zhou, Qingjiang Li
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Proceedings Volume 13419, Tenth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2024); 134190O (2024) https://doi.org/10.1117/12.3050187
Event: Tenth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2024), 2024, Lhasa, China
Abstract
In this paper, a dimensionless constant Rf (the ratio of the shell I.D. (cm) to the busbar O.D. (cm)) is defined to measure the relative size of the GIS (Gas Insulated Switchgear) shell and busbar, and this parameter has a large influence on the natural convection heat dissipation capability inside the gas chamber. A two-dimensional multi-physical field coupling computational model was established to study the influence mechanism of Rf on the steady state temperature rise inside the GIS, and the results show that: with the increase of Rf, the Trise first decreases rapidly and then decreases slowly and finally tends to flatten out, i.e., there exists a critical value of Rf-threshold, and there is no obvious effect of increasing the size of the shell on the reduction of the steady state temperature rise inside the GIS when the value of Rf is larger than this value. In the internal filling of different insulating gases, different filling pressures, different current levels, the above law exists, only the specific value of the slight difference (2.5~3.25). In industrial design, it can be roughly considered that when the Rf>3, you can can take into account the design of structural compactness and more excellent temperature rise performance. The above research can provide a new constraint for GIS size design, thus simplifying the GIS design process.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Yao Zheng, Zhi Ye, Chao Gao, Jungang Wang, Fusheng Zhou, and Qingjiang Li "Numerical simulation study on the influence mechanism of the ratio of the shell I.D. to the busbar O.D. (Rf) on the steady state temperature rise (Trise) of GIS", Proc. SPIE 13419, Tenth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2024), 134190O (12 December 2024); https://doi.org/10.1117/12.3050187
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KEYWORDS
Geographic information systems
Design
Dielectrics
Rutherfordium
Convection
Gases
Magnetism
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