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SF6 Decomposition device Quantitative

SF6 Decomposition device Quantitative

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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  • 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 aCited by: 21

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  • Quantitative analysis of decomposition products of sulfur

    Electrical utilities use sulfur hexafluoride (SF 6) as an electrical insulator in many components of their power systems.Under normal conditions SF 6 is stable, but in electrical discharges SF 6 decomposes into many byproducts. With an FT-IR spectrometer and a 20-m cell, we have examined the byproducts from various discharges and obtained quantitative analyses of components down to 1 ppm (partCited by: 3

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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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  • Detecting characteristics of SF6 decomposed gas sensor for

    Quantitative detection of these decomposition products can be used to evaluate the state of the equipments insulation. of SF6 decomposition in electrical device. result from sulfur

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  • SF6 Decomposition in Gas-Insulated Equipment

    The increasing application of SF6 as an insulating gas has led to many studies on SF6 decomposition in gas-insulated equipment. In the presence-of an electric arc, spark or corona, SF6 decomposes to a wide variety of chemically active products which possess completely different properties from SF6. The accumulation of these decomposition products in the equipment has caused concerns regardingCited by: 365

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  • CN103616445A - Analytic method of SF6 decomposition

    The invention discloses an analytic method of SF6 (sulfur hexafluoride) decomposition products. A sample is analyzed through gas chromatography-mass spectrometry. The analytic method disclosed by the invention is capable of performing qualitative and quantitative analysis on compounds by using the characteristic ions of different target compounds as selective ions; in combination with optimal

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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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  • CN101799458A - Method for analyzing decomposition products

    By using the invention, the decomposition products such as SO2F2 in SF6 can be accurately analyzed; and by analyzing the decomposition impurities such as SO2F2, the internal operating condition of...

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  • Optical technology for detecting the decomposition

    Studies have demonstrated that partial discharge in SF 6 -insulated electrical equipment can cause SF 6 decomposition, resulting in the generation of various products. Quantitative detection of these decomposition products can be used to evaluate the state of the equipment’s insulation.

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  • The decomposition products of sulfur hexafluoride (SF6

    Nov 01, 20071. Introduction. Sulfur hexafluoride (SF 6), molecular weight 146.07, is a colorless, odorless, nonflammable and heavy gas with excellent electrical characteristics that make it applicable for some special uses in the electrical/electronic equipments, industrial processes, scientific fields and commercial products , , .Due to its low toxicity, thermal stability and high breakdown strength

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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.

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  • Measuring device for<bRdecomposition products | DILO GmbH

    Measuring device for different decomposition products and gas residues For precise measurement. 3-032-R003 During the operation of gas insulated switchgear decomposition products might occur after a breakdown which has a negative impact on the gas quality in the circuit breaker as well as on the insulation properties.

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  • Fourier transform infrared spectroscopy quantitative

    Gas-insulated switchgear (GIS) internal SF 6 gas produces specific decomposition components under partial discharge (PD).

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  • CN102445433A - SF6 decomposition gas infrared spectrum

    The invention discloses an SF6 decomposition gas infrared spectrum multi-component detection method and a device. According to the method, a chopped wave modulation wheel and a spectroscopical filtration wheel in a traditional non-dispersion infrared spectrum technology are combined into a whole, a modulation filtration wheel is utilized to realize simultaneous measurement of multi-component

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  • Ultraviolet differential optical absorption spectrometry

    spectrometry: quantitative analysis of the CS 2 produced by SF 6 decomposition To cite this article: Xiaoxing Zhang et al 2017 Meas. Sci. Technol. 28 115102 experimental study of SF6 decomposition View the article online for updates and enhancements. Related content Partial discharge early-warning through ultraviolet spectroscopic detection of SO2

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  • Study of SF6 gas decomposition products based on

    Sep 08, 2011The result show that the main discharge decomposition product is SO 2 F 2 (sulfuryl fluoride), the substance can react with water and generate corrosive H 2 SO 4 (sulfuric acid) and HF (hydrogen fluoride), also found that the increase in the number with the discharge, SO 2 F 2 concentration levels are on the rise.

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  • Ultraviolet differential optical absorption spectrometry

    Oct 12, 2017The internal fault type and severity of the fault in the insulation equipment can be detected through the accurate quantitative detection of CS 2. A device for simultaneously determining and an analysis of SF6 decomposition products: part 1. spectroscopy quantitative analysis of

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  • Cantilever enhanced photoacoustic spectrometry

    Sep 01, 2016The SF 6 decomposition and its reaction to form H 2 S were simulated.. Quantitative researches on H 2 S were carried out based on CEPAS detection platform.. Detection sensitivity to H 2 S of the detection platform were 0.84 μL/L and 1.75 μL/L.. The influence of temperature and pressure on the detection platform were analyzed.

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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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  • Method and device for the detection of SF6 decomposition

    Apr 12, 2005This invention is in the field of gas detection for sulphur hexafluoride (SF6) gas decomposition products, particularly for the detection of thionyl fluoride (SOF2) and sulphur dioxide (SO2). The invention relates to a novel portable handheld instrument that can readily detect SOF2, SF4 and SO2 in SF6 gas filled electrical equipment and in air.

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  • PAPER OPEN ACCESS

    light SF6 gas decomposition products, which can realize real-time on-line monitoring of the Hardware and device development: develop a set of on-line measurement device to realize quantitative analysis of carbon tetrafluoride gas, optimize the design of optical path system to solve

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  • Ultraviolet differential spectroscopy quantitative

    Numerous SF6 decomposition experiments under four kinds of PD generated by four kinds of artificial defects were carried out and the SF6 decomposition products produced by each experiment were

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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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  • Research on technology of online gas chromatograph for SF6

    Sulfur hexafluoride (SF6) decomposition products were qualitatively and quantitatively analyzed by several gas chromatographs in the laboratory. A device for the measurement of concentration

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  • Ultraviolet differential optical absorption spectrometry

    The occurrence of partial discharge or partial overthermal fault in sulfur hexafluoride (SF 6 )-insulated electrical equipment frequently causes SF 6 and solid insulation materials to decompose into various products. One of the most characteristic products of this process is carbon disulfide (CS 2 ). The internal fault type and severity of the fault in the insulation equipment can be detected

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  • TiO2 Nanotube Array Sensor for Detecting the SF6

    The detection of partial discharge through analysis of SF 6 gas components in gas-insulated switchgear, is significant for the diagnosis and assessment of the operating state of power equipment. The present study proposes the use of a TiO 2 nanotube array sensor for detecting the SF 6 decomposition product SO 2, and the application of the anodic oxidation method for the directional growth of

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