Switching Impulse Characteristics of C<sub>5</sub>F<sub>10</sub>O Gas Mixtures Under Extremely Nonuniform Field

Zeng, Fuping; Su, Dazhi; Chen, Xiaoyue; Xie, Bingquan; Zhang, Shiling; Yao, Qiang; Tang, Ju

doi:10.1109/tdei.2022.3185582

Cited by 3 publications

(1 citation statement)

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“…The GWP of C 5 F 10 O is only 1, while its insulation strength is 1.93 times that of SF 6 . Series studies on its physical and chemical properties [6], insulation performance [7,8] and electric and thermal decomposition characteristics properties [9][10][11] have been carried out. The results basically prove the feasibility of using C 5 F 10 O mixed with N 2 , CO 2 or dry air as an insulating medium in environmentally friendly switchgears.…”

Section: Introductionmentioning

confidence: 99%

Degradation Behaviors and Mechanism of Nitrile Butadiene Rubber Caused by Insulating Medium C5F10O

et al. 2023

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C5F10O is a promising insulating medium in the manufacturing of environmentally friendly gas-insulated switchgears (GISs). The fact that it is not known whether it is compatible with sealing materials used in GISs limits its application. In this paper, the deterioration behaviors and mechanism of nitrile butadiene rubber (NBR) after prolonged exposure to C5F10O are studied. The influence of C5F10O/N2 mixture on the deterioration process of NBR is analyzed through a thermal accelerated ageing experiment. The interaction mechanism between C5F10O and NBR is considered based on microscopic detection and density functional theory. Subsequently, the effect of this interaction on the elasticity of NBR is calculated through molecular dynamics simulations. According to the results, the polymer chain of NBR can slowly react with C5F10O, leading to deterioration of its surface elasticity and loss of inside additives, mainly ZnO and CaCO3. This consequently reduces the compression modulus of NBR. The interaction is related to CF3 radicals formed by the primary decomposition of C5F10O. The molecular structure of NBR will be changed in the molecular dynamics simulations due to the addition reaction with CF3 on NBR’s backbone or branched chains, resulting in changes in Lame constants and a decrease in elastic parameters.

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Section: Introductionmentioning

confidence: 99%

Degradation Behaviors and Mechanism of Nitrile Butadiene Rubber Caused by Insulating Medium C5F10O

et al. 2023

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Experimental Research on V–t Characteristics of C₅F₁₀O/CO₂ Gas Mixture Under Lighting Impulse Voltage

Zeng

Chen

et al. 2023

IEEE Trans. Dielect. Electr. Insul.

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Diffusion and Absorption Behaviors of Small Gas Molecules in EPDM and NBR Sealing Materials for C₅F₁₀O Insulated Switchgears

She,

Zeng,

et al. 2024

IEEE Trans. Dielect. Electr. Insul.

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Switching Impulse Characteristics of C₅F₁₀O Gas Mixtures Under Extremely Nonuniform Field

Cited by 3 publications

References 20 publications

Degradation Behaviors and Mechanism of Nitrile Butadiene Rubber Caused by Insulating Medium C5F10O

Degradation Behaviors and Mechanism of Nitrile Butadiene Rubber Caused by Insulating Medium C5F10O

Experimental Research on V–t Characteristics of C₅F₁₀O/CO₂ Gas Mixture Under Lighting Impulse Voltage

Diffusion and Absorption Behaviors of Small Gas Molecules in EPDM and NBR Sealing Materials for C₅F₁₀O Insulated Switchgears

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Switching Impulse Characteristics of C5F10O Gas Mixtures Under Extremely Nonuniform Field

Cited by 3 publications

References 20 publications

Degradation Behaviors and Mechanism of Nitrile Butadiene Rubber Caused by Insulating Medium C5F10O

Degradation Behaviors and Mechanism of Nitrile Butadiene Rubber Caused by Insulating Medium C5F10O

Experimental Research on V–t Characteristics of C5F10O/CO2 Gas Mixture Under Lighting Impulse Voltage

Diffusion and Absorption Behaviors of Small Gas Molecules in EPDM and NBR Sealing Materials for C5F10O Insulated Switchgears

Contact Info

Product

Resources

About

Switching Impulse Characteristics of C₅F₁₀O Gas Mixtures Under Extremely Nonuniform Field

Experimental Research on V–t Characteristics of C₅F₁₀O/CO₂ Gas Mixture Under Lighting Impulse Voltage

Diffusion and Absorption Behaviors of Small Gas Molecules in EPDM and NBR Sealing Materials for C₅F₁₀O Insulated Switchgears