Raman Spectroscopy of Decomposition Products of C4F7N/CO2/O2 Gas Mixture

Le résumé fourni par la source

C4F7N /CO2gas mixture has excellent insulation and interrupting properties, and is considered to be the most promising SF6replacement gas at present. In order to avoid the carbon precipitation phenomenon of C4F7N /CO2gas mixture in the process of opening and closing, O2 needs to be added as the second buffer gas. When partial discharge or local overheating occurs, the C4F7N /CO2/O2gas mixture will decompose, and the fault in gas-insulated electrical equipment can be determined by detecting the decomposition components of the gas mixture in gas-insulated electrical equipment. However, the existing C4F7N ICO2/O2gas mixture decomposition components are difficult to achieve relatively accurate multi-component simultaneous detection. In this paper, the Raman spectra of each single gas and gas mixture of C4F7N /CO2/O2gas mixture and its decomposition gas were obtained by simulation, and the spectral characteristics of the characteristic Raman peaks of each gas were investigated. This study provides some basic data for the detection and quantitative analysis of the decomposition components of C4F7N /CO2/O2gas mixture, and shows that Raman spectroscopy has great potential in the field of detection of the decomposition components of C4F7N /CO2/O2gas mixture.

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