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SF6 decomposition Recovery Quantitative

SF6 decomposition Recovery Quantitative

The invention discloses a qualitative and quantitative analysis method for a sulfur hexafluoride (SF6) gas discharge decomposition product. The method comprises the following steps of: sampling; performing qualitative and quantitative analysis on a sample by a gas chromatograph-mass spectrograph, wherein a quadrupole rod quality detector is adopted, and a chromatographic column is a CP-Sil 5 ...

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  • Treatment and Recovery of the SF6 Gas Containing a High

    treatment recovery of treatment recovery of the sfthe sf 6 6 gas containing a high gas containing a high amount of decomposition amount of decomposition products due to high products due to high voltage electrical voltage electrical interruptionsinterruptions j.lj.l..

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  • Implementation Of Treatment Recovery Of the SF6 Gas

    described the tests performed at site by the AREVA TD team and the recovery of a polluted gas by AVANTEC in their factory, removing the decomposition products. Generally, this paper describes the treatment and the recycling of a used gas. 2/ Introduction Fig.1. Typical 245 kV dead tank circuit breakers using SF6 gas as Fig. 2.

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  • SF6 Decomposition in Gas-Insulated Equipment - IEEE

    This paper reviews previous research in SF6 decomposition relating to the operation of gas-insulated switchgears, gas-insulated transmission lines, and electrostatic accelerators. Results on the qualitative and quantitative determination of the by-products and their formation ion rates in various modes of electrical discharges are summarized.

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  • SF6 Decomposition in Gas-Insulated Equipment

    This paper reviews previous research in SF6 decomposition relating to the operation of gas-insulated switchgears, gas-insulated transmission lines, and electrostatic accelerators. Results on the qualitative and quantitative determination of the by-products and their formation ion rates in various modes of electrical discharges are summarized.Cited by: 365

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  • Ni-CNT Chemical Sensor for SF6 Decomposition Components

    As shown in Figure 4, the flow rate of SF 6 decomposition components is 100 sccm during the gas-sensing process, and the N 2 flow is used in the recovery process with a flow rate of 200 sccm. In addition, the illumination of UV light is applied to enhance the recovery process as it greatly increases the molecular vibration of SF 6 decomposition components.Cited by: 4

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  • The decomposition products of sulfur hexafluoride (SF6

    Nov 01, 2007The toxic products containing fluorine and/or sulfur in the SF 6 decomposition may include S 2 OF 10, CF 4, COF 2, F 2, HF, H 2 S, NF 3, F 2 O, SiF 4, SO 2, S 2 F 10, SF 4, SO 2 F 2, SOF 2, SOF 4 and S 2 O 2 F 10, , , , , , , , , . 3.1. Chemical and physical information on SF 6 decomposition toxic products

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  • Fourier transform infrared spectroscopy quantitative

    Feb 05, 2015Quantitative research on SF 6 decomposition components was conducted in this study based on the FTIR method. The absorption coefficients of several types of SF 6 decomposition components were confirmed, and the quantitative relationships among gas production rate, PD time, and PD quantity were studied. Detection platform

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  • Byproducts of Sulfur Hexafluoride (SF6) Use in the

    the decomposition products and concentrations formed under actual conditions can vary depending on the equipment used and the type of electrical discharge (CIGRE 1997). 1 CIGRE (the International Council on Large Electric Systems) is a permanent non-governmental and non profit-making international association based in France.

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  • Thermal decomposition properties of fluoronitriles-N2 gas

    Jan 01, 2020It is reported that the descending order of the thermal recovery ability for the gases is: SF 6 C 4 F 7 N75 %C 4 F 7 N-25 %N 2 75 %C 4 F 7 N-25 %CO 2. While, the descending order of the pre-dielectric recovery ability for the gases is: SF 6 C 4

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  • Multivariate Evaluation Method for Screening Optimum Gas

    In previous studies, the selection of optimal gas-sensing materials for detecting target gases mainly relied on their response value, but other indices, such as the recovery capability of materials, have usually been overlooked. Here, we propose a new method for evaluating sensor effectiveness that includes a broader range of performance indices. In this study, four gas sensors based on metal

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  • CN101799458A - Method for analyzing decomposition products

    The invention discloses a method for analyzing decomposition products of SF6 in electric equipment. The method comprises the following steps: sampling; and analyzing and detecting a sample with a chromatograph, wherein the detection part of the chromatograph comprises a thermal conductivity detector (TCD) and fission-product detector (FPD) which are in serial connection, the chromatographic

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  • Decomposition Properties of C4F7N/N2 Gas Mixture: An

    The insulation characteristics and decomposition components of C4F7N/N2 gas mixture, a potential substitute for SF6, were first explored by breakdown experiments/gas chromatography–mass spectrometer. The structural properties of C4F7N molecule and the decomposition mechanism of C4F7N/N2 gas mixture were analyzed based on the density functional theory calculation and ReaxFF

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  • Ultraviolet differential optical absorption spectrometry

    SO2F, SOF2, SO2F2 of SF6 decomposition in power equipment Yuwei Fu, Mingzhe Rong, Kang Yang et al.-Chemical kinetic modeling and byproducts in 50 Hz ac point-plane corona discharges Qingqing Gao, Chunping Niu, Xiaohua Wang et al.-Recent citations Ultraviolet Spectral Analysis and Quantitative Detection of Heptafluoroisobutyronitrile (C4F7N) in a

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  • CN103105441B - Qualitative and quantitative analysis

    The invention discloses a qualitative and quantitative analysis method for a sulfur hexafluoride (SF6) gas discharge decomposition product. The method comprises the following steps of: sampling; performing qualitative and quantitative analysis on a sample by a gas chromatograph-mass spectrograph, wherein a quadrupole rod quality detector is adopted, and a chromatographic column is a CP-Sil 5

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  • The SF6 Decomposition Mechanism: Background and

    Gas Insulated Switchgear (GIS) has been widely used in substations. The insulating medium used in GIS is sulfur hexafluoride (SF6) gas. However, the internal insulation defect existed in GIS would inevitably lead to partial discharge (PD), and cause the composition of SF6 to SOF2, SO2F2 and SO2 and other characteristic component gases. The decomposition phenomenon would greatly reduce the

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  • Quantitative infrared spectroscopic analysis of SF6

    May 30, 2001The quantitative analysis of the decomposition products of SF 6, obtained under various electrical stress conditions, was investigated using FT-IR spectroscopy and PLS-calibration. This technique provides the sensitivity necessary to determine reliable concentrations in the low ppm v and for some components even in the sub-ppm v range using a

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  • A Pt-Doped TiO2 Nanotube Arrays Sensor for Detecting SF6

    The detection of partial discharge and analysis of SF 6 gas components in gas-insulated switchgear (GIS) is important for the diagnosis and operating state assessment of power equipment. The use of a Pt-doped TiO 2 nanotube arrays sensor for detecting sulfur hexafluoride (SF 6) decomposition products is proposed in this paper.The electrochemical pulse deposition method is employed to prepare

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  • Fourier transform infrared spectroscopy quantitative

    Feb 05, 20151. Spectrochim Acta A Mol Biomol Spectrosc. 2015 Feb 5;136 Pt B:884-9. doi: 10.1016/j.saa.2014.09.109. Epub 2014 Oct 2. Fourier transform infrared spectroscopy quantitative analysis of SF6 partial discharge decomposition components.

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  • SF6 Gas Leak Detector and Analysis-HV Hipot Electric Co.,Ltd.

    GDWG-III SF6 Gas Quantitative Leakage Detector GDSF-411CPD SF6 Gas Analyzer GDSF-411CPD SF6 Gas Analyzer GDFJ-311M SF6 Gas Decomposition Product Tester GDP-311IR SF6 Gas Purity Tester GDP-311IR SF6 Gas Purity Tester (IR Method) GDQC-16 SF6 Gas Recovery Unit GDQH-3000C SF6 Gas Recovery Unit

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  • China High reputation Sf6 Analyzer 973 - LK403B SF6

    The LK403B SF6 Decomposition Ion Mobility Analyzer has been designed for controlling the SF6-quality in disconnecting switches, bus bars and circuit breakers in Gas Insulated Substations (GIS). This device allows the measurement of the contamination (total of decomposition products), the SF6-percentage based on SF6-air (or nitrogen) mixtures

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  • Detection of Ozone and Nitric Oxide in Decomposition

    May 04, 2018“The Quantitative Detection of SF 6 Characteristic Decomposition Component H 2 S Based on Cantilever Enhanced Photoacoustic Spectrometry”. Trans. China Electrotechnical Soc. 2016. 15: 187 – 196. Google Scholar

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  • SF Maintenance Equipment Fundamentals

    6 Recovery Equipment Compared with older oil-based technology, GIE has far longer maintenance cycles – often times 10 years or more. Over time, moisture and decomposition levels increase and must be kept within industry-recognized limits. Testing and benchmarking these levels will provide the user with a means of scheduling gas maintenance.

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