Abstract
The optimized concentration of SF6 gas is the key to maintaining a good insulation performance by GIS equipment. The precise measurements of the SF6 concentration and decomposition byproducts could be used to indicate the remaining GIS insulation level during long-term operations. In this paper, a finite-element simulation model was created to investigate the SF6 gas decomposition and diffusion dynamics. A theoretical analysis and simulation of the overheating fault, i.e., the contact between the GIS disconnect switches, were carried out, followed by an estimation of the SF6 decomposition and diffusion characteristics caused by the local heating faults, based on the calculated flow velocity field and temperature field.
Subject
Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction
Reference21 articles.
1. Fault analysis of GIS based on fault tree theory;Cui;High Volt. Electric.,2015
2. Analysis of overheating caused by connection gaps between GIS high-voltage bus segments;Ning;J. Electr. Eng. Technol.,2017
3. Gaseous Insulation for High-Voltage Transformers [includes discussion]
4. Thermal stability of SF6associated with metallic conductors incorporated in gas insulated switchgear power substations
5. Volume fraction and characteristics of SF6 gas decomposition products during simulated overheating faults in electrical equipment;Wang;High Volt. Electron.,2011
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献