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首页> 外文会议>International Conference on Condition Monitoring and Diagnosis >A New Scheme for Residual CF4 Detection in Gas-Insulated Switchgear Using Plasma-induced CF4 Decomposition into CO2
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A New Scheme for Residual CF4 Detection in Gas-Insulated Switchgear Using Plasma-induced CF4 Decomposition into CO2

机译：使用血浆诱导的CF4分解在CO2中的气体绝缘开关装置中残留CF4检测的新方案

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This paper presents a new scheme for the detection of residual carbon tetrafluoride (CF4) gas in gas-insulated switchgear (GIS) for its diagnosis. For the diagnosis of GIS, the decomposition gas species including CF4 generated by partial discharges or breakdown are analyzed. Accumulation of the gas species indicates the history of the failure of GIS. However, most of the gas species are removed by an absorbent placed in a GIS vessel. The only CF4 stays in GIS vessel for the long term. In this study, it is aimed to develop an easy and rapid CF4 detection method. Because direct detection of CF4 is difficult, an indirect detection method of CF4 is proposed, in which CF4 is processed by non-thermal plasma (NTP). In this paper, the conversion of CF4 using dielectric barrier discharge (DBD) was examined. The infrared absorption band among SF6, CF4, and CO2 was observed by Fourier transform infrared (FT-IR) spectroscopy. The amount of CO2 generated in the case of CF4 (10,000 ppm) and O2 (10,000 ppm) diluted in Ar or SF6 was analyzed. In the case of Ar dilution, CO2 gradually increased with increasing time of DBD application by using a compact CO2 NDIR sensor. In the case of SF6 dilution, CO2, CO, O2, and SO2 were detected by using a portable gas analyzer. The latter case showed a higher CO2 generation rate of 400 ppm/hr, whereas the other showed 50 ppm/hr. In addition, a zeolite-filled column was installed for removing SO2 from the processed gas.
机译：本文介绍了检测残余碳四氟化物的新方案（CF 4 ）气体绝缘开关设备（GIS）的诊断。对于GIS的诊断，包括CF的分解气体物种 4 分析由部分放电或分解产生的。气体物种的积累表明了GIS失败的历史。然而，大部分气体物种被放置在GIS容器中的吸收剂除去。唯一的参见 4 长期留在GIS船上。在这项研究中，它旨在开发一种简单快捷的CF 4 检测方法。因为直接检测CF 4 很难，间接检测方法的CF 4 提出，其中CF 4 由非热等离子体（NTP）加工。在本文中，CF的转换 4 检查介质屏障放电（DBD）被检查。 SF之间的红外吸收带 6 ，CF. 4 和co. 2 傅里叶变换红外（FT-IR）光谱观察。 CO的金额 2 在CF的情况下产生 4 （10,000 ppm）和o 2 （10,000ppm）在AR或SF中稀释 6 分析了。在AR稀释的情况下，CO 2 随着Compact Co的越来越多的DBD应用时间逐渐增加 2 NDIR传感器。在SF的情况下 6 稀释，co 2 ，co，o 2 ， 所以 2 通过使用便携式气体分析仪检测。后一种情况表明了一个更高的CO 2 生成率为400 ppm / hr，而另一则显示50 ppm / hr。此外，安装了沸石填充的柱以去除 2 从加工的气体。

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