Installation and Test Run of Comprehensive Analysis System for SF<sub>6</sub> in Power Equipment

Lee, Jeong Eun; Kim, Kwang Sin; Kim, Ah Reum; Park, Seoksoon; Kim, Kyeongsook

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자료유형: 학술저널

저자정보: Lee, Jeong Eun (KEPCO Research Institute, Korea Electric Power Corporation) Kim, Kwang Sin (KEPCO Research Institute, Korea Electric Power Corporation) Kim, Ah Reum (KEPCO Research Institute, Korea Electric Power Corporation) Park, Seoksoon (KEPCO Research Institute, Korea Electric Power Corporation) Kim, Kyeongsook (KEPCO Research Institute, Korea Electric Power Corporation)

저널정보: 한국전력공사 KEPCO Journal on electric power and energy KEPCO Journal on electric power and energy 제3권 제1호

발행연도: 2017.1

수록면: 41 - 47 (7page)

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After $SF_6$, which is being used in power equipment as an insulating material, is classified as one of the 6 major greenhouse gases, the maintenance and the refinement of used $SF_6$ started to get attention. In regard to this, KEPCO Research Institute (KEPRI) is developing $SF_6$ recovery and refinement technology starting with establishing a comprehensive $SF_6$ analysis system. With the analysis system, qualitative and quantitative analyses of the purity and the impurities of $SF_6$ before and after recovery, and before and after refinement have been carried out. The analysis system is comprised of GC-DID (Gas Chromatograph -Discharge Ionization Detector) for trace impurities analysis, GC-TCD (Thermal Conductivity Detector) for analyses of $SF_6$ purity and major impurities concentration from several hundred ppm up to percent range, GC-MSD (Mass Selective Detector) for analyses of impurities not included in standard gas, FT-IR (Fourier Transform-Infrared) Spectrometer for analysis of HF and $SO_2$, and moisture analyzer for analysis of moisture below 100 ppm. With this analysis system, complete analysis method of $SF_6$ has been established. This analysis system is being used in the maintenance of power equipment and the development of $SF_6$ recovery and refinement technologies. In this paper, the analysis results of four samples - gas and liquid phase $SF_6$ samples from a $SF_6$ refinement system before and after refinement are presented.

#Gas Chromatography #FT-IR #$SF_6$ Refinement #$SF_6$ Analysis #Gas Insulated Switchgears #GIS)

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