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SF6 Decomposition Collection Quantitative

SF6 Decomposition Collection 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;...

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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 transmission cell of 10 cm pathlength.Cited 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 (part perCited 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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  • 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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  • 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;...Author: 裘吟君, 陈晓琳, 陈林聪, 张薇, 李欣然

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  • Quantitative Analysis for SF6 and its Compositions in GIS

    In this paper, a method for GIS equipment fault diagnosis by the analysis of volume fractions of the derivatives of SF6 gas inside GIS equipment is presented. For the method, based on the differential spectra method, a neural network model and the particle swarm optimization are used for training analysis of infrared spectra, to realize the quantitative analysis of specific derivatives.

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  • Detection of decomposition products in SF6: A comparison

    Quantitative detection of these decomposition products can be used to evaluate the state of the equipments insulation. Surveillance of SF6 decomposition products is significant for detection

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  • CORONA-INDUCED DECOMPOSITION OF SF6 - ScienceDirect

    Jan 01, 2013CORONA-INDUCED DECOMPOSITION OF SF6 R. J. Van Brunt and D. A. Leep* National Bureau of Standards Washington, D. C. 20234 ABSTRACT The stable, neutral decomposition products resulting from positive point-plane dc corona in static SF6 gas have been identified with a gas chromatograph-mass spectrometer.

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  • Optical technology for detecting the decomposition

    1. Introduction. Sulfur hexafluoride (SF 6) is a reliable insulating gas and has excellent arc-extinguishing properties.SF 6-insulated electrical equipment, such as switchgear, transformers, and lines, is widely used in city power grids and ultrahigh-voltage power transmission systems owing to its small footprint, high reliability, and long service life.

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  • Byproducts of Sulfur Hexafluoride (SF6) Use in the

    Sulfur hexafluoride (SF 6) is a relatively nontoxic gas used in a number of applications for its inert qualities. The dielectric and other physical and chemical properties related to its lack of reactivity have led to the extensive use of SF 6 as an insulating medium in switching equipment (e.g., circuit breakers) by electric utilities. While SF 6

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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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  • Decomposition characteristics of SF6-N2 gas mixtures under

    In this paper, by virtue of the gas chromatograph-mass spectrometer system, the qualitative as well as quantitative results of SF6 decomposition by-products are presented in 50 Hz AC point-plane

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  • Ultraviolet differential spectroscopy quantitative

    Request PDF | Ultraviolet differential spectroscopy quantitative analysis of SF6 decomposition component SO2 | SO2 is a symbolic gas that can indicate the insulation status of c insulation

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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). By detecting these characteristic decomposition components, such information as the type and level of GIS internal insulation deterioration can be obtained effectively, and the status of GIS internal insulation can be evaluated.

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  • OSA | Highly sensitive photoacoustic multicomponent gas

    A ppb-level photoacoustic multicomponent gas sensor system for sulfur hexafluoride (SF 6) decomposition detection was developed by the use of two near-infrared (NIR) diode lasers and an ultraviolet (UV) solid-state laser. A telecommunication fiber amplifier module was used to boost up the excitation optical power from the two NIR lasers.

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  • SF6 Worries – The Most Potent and Persistent Greenhouse

    Sep 20, 2019It likely forms via an electrically induced decomposition reaction of SF 6: 2 SF 6(g) → S 2 F 10(g) + F 2(g) S 2 F 10 has a toxicity four times that of phosgene, COCl 2! In WWII, gaseous S 2 F 10 was considered a chemical warfare pulmonary agent. Its toxicity emanates from the disproportionation reaction: S 2 F 10(g) → SF 6(g) + SF 4(g)

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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

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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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  • Quantitative infrared spectroscopic analysis of SF 6

    The use of a Pt-doped TiO2 nanotube arrays sensor for detecting sulfur hexafluoride (SF6) decomposition products is proposed in this paper. The electrochemical pulse deposition method is

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  • Fourier transform infrared spectroscopy quantitative

    A simulated coaxial deterioration chamber was designed and used on the high voltage electrode to re-enact the decomposition of SF6 under the impact of protrusion defect that generates partial

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  • Fourier transform infrared spectroscopy quantitative

    Feb 05, 2015Gas-insulated switchgear (GIS) internal SF6 gas produces specific decomposition components under partial discharge (PD). By detecting these characteristic decomposition components, such information as the type and level of GIS internal insulation deterioration can be obtained effectively, and the status of GIS internal insulation can be evaluated.

    Get Price
  • Ultraviolet differential optical absorption spectrometry

    Oct 12, 2017The 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

    Get Price
  • Cigre Sf6 234 - ID:5c5faff2391be - livrosdeamor.com.br

    Reactive Gases (SF6 Decomposition By-Products) Reactive gaseous SF6 decomposition products include various gaseous fluorides such as SF4 and WF6, oxifluorides like SOF2, SOF4, and SO2F2, the oxide SO2, and hydrogen fluoride HF. All of these gases could principally be detected using gas chromatography or infrared spectrometers.

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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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