三氟甲基磺酰氟的局部放电发射光谱识别及特征分析

doi:10.3964/j.issn.1000-0593(2025)05-1448-07

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Abstract Trifluoromethylsulfonyl fluoride (CF₃SO₂F) is a novel environmentally friendly insulation gas that has attracted widespread attention due to its excellent insulation strength and environmental friendliness. This paper identifies the emission spectra of CF₃SO₂F under different discharge modes and analyzes the emission spectral characteristics of radiative particles from the discharge perspective. During corona discharge, CF₂ emitted a band spectrum of 200 to 400 nm due to the dissociation of CF₃SO₂F. The associated steady-state decomposition products include CF₄, C₂F₄, C₂F₆, C₃F₈, SO₂F₂, etc. As the energy provided by the electric field increases, overlapping line and band spectra occur in surface discharge emission spectra. A few elemental particles undergo ionization. In spark discharge, where the energy provided by the electric field is highest, line spectra dominate the emission spectra. Multiple levels of ionization of elemental particles occur. With the increase in energy supplied by the electric field, the ratio of photons in the visible and infrared spectral regions exhibits a “red-shift” phenomenon. The research results indicate that the emission spectra formed by gaseous molecules or elemental particles during partial discharge correlate with steady-state decomposition products. The appearance of characteristic spectra confirms the existence of free radical reactions, while the different ratios of photons reflect the amount of energy provided by the electric field. This study can provide references for the basic physical and chemical properties research of CF₃SO₂F.

Key words：CF₃SO₂F; Emission spectra; Discharge transient; Free radical reactions

Received: 2024-05-22 Accepted: 2025-01-17

ZTFLH:

TM855

Corresponding Authors: DUAN Jun-ran, HAN Dong E-mail: donghan@mail.iee.ac.cn；duanjunran@mail.iee.ac.cn

Cite this article:

DUAN Jun-ran,GAO Ke-li,LIU Wei, et al. Identification and Characteristic Analysis of Partial Discharge Emission Spectra of CF₃SO₂F[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2025, 45(05): 1448-1454.

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https://www.gpxygpfx.com/EN/10.3964/j.issn.1000-0593(2025)05-1448-07 OR https://www.gpxygpfx.com/EN/Y2025/V45/I05/1448

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