A Study on Dielectric Breakdown Properties of Hot CO2/O2/C5F10O Gas Mixture: Focus on Concentration Rate of O2 Gas

IF 1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2024-05-30 DOI:10.1002/tee.24132

Akihiro Tsusaka, Toshiya Yokoi, Toshiro Matsumura, Kazuto Yukita, Toshiya Nanahara, Yasuyuki Goto, Yasunobu Yokomizu

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引用次数: 0

Abstract

A gaseous mixture of CO₂ and C₅F₁₀O has been widely investigated as one of the alternative gases for SF₆. Due to the better electron attachment ability of oxygen molecule O₂, it is generally expected that adding of O₂ gas would improve the dielectric strength of arc quenching and insulating gas for electric power equipment. Therefore, in this paper, the dielectric breakdown properties of hot CO₂/O₂/C₅F₁₀O gas mixture were numerically estimated. The calculation results revealed that the critical electric field strength of the CO₂/C₅F₁₀O gas mixture is disappointingly decreased by the addition of O₂ gas, especially in the temperature range of 3000 K to 1000 K. This is brought about by the increase of ionization reaction of CO₂ molecules with an increase in the O₂ concentration in the arc-quenching gas of CO₂/O₂/C₅F₁₀O. © 2024 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.

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热 CO2/O2/C5F10O 混合气体的介电击穿特性研究：关注氧气的浓缩率

二氧化碳和 C5F10O 的混合气体作为 SF6 的替代气体之一已被广泛研究。由于氧分子 O2 具有更好的电子附着能力，人们普遍认为加入 O2 气体可提高熄弧和电力设备绝缘气体的介电强度。因此，本文对热 CO2/O2/C5F10O 混合气体的介电击穿特性进行了数值估算。计算结果表明，CO2/C5F10O 混合气体的临界电场强度会随着 O2 气体的加入而降低，尤其是在 3000 K 至 1000 K 的温度范围内。© 2024 日本电气工程师学会和 Wiley Periodicals LLC。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEJ Transactions on Electrical and Electronic Engineering 工程技术-工程：电子与电气

CiteScore

2.70

自引率

10.00%

发文量

199

审稿时长

4.3 months

期刊介绍： IEEJ Transactions on Electrical and Electronic Engineering (hereinafter called TEEE ) publishes 6 times per year as an official journal of the Institute of Electrical Engineers of Japan (hereinafter "IEEJ"). This peer-reviewed journal contains original research papers and review articles on the most important and latest technological advances in core areas of Electrical and Electronic Engineering and in related disciplines. The journal also publishes short communications reporting on the results of the latest research activities TEEE ) aims to provide a new forum for IEEJ members in Japan as well as fellow researchers in Electrical and Electronic Engineering from around the world to exchange ideas and research findings.