News Center
SF6 decomposition detection systems Quantitative

SF6 decomposition detection systems Quantitative

HZIR-3000 SF6 Gas Micro Leak Detection Test. HZIR-3000 SF6 Gas Micro Leak Detection Test 1. Purpose HZIR-3000 SF6 Quantitative leak detector is the most ideal test tools and methods of SF6 Micro leaks at present.It is efficient and accurate. 2. Technical specifications 3.Operating steps and instructions 1 、 Check oil...

[email protected]

News Detail

  • The SF6 Decomposition Mechanism: Background and

    The decomposition phenomenon would greatly reduce the insulation performance of SF6 insulated equipment, and even paralyze the whole power supply system. In this chapter, we first discuss the objective existence, decomposition mechanism and harmness of insulation defects.Cited by: 1

    Get Price
  • The SF6 Decomposition Mechanism: Background and

    Nanomaterials Based Gas Sensors for SF6 Decomposition Components Detection 10 [33] Ding W, Hayashi R, Ochi K, et al. Analysis of PD-generated SF 6 decomposition gases adsorbed on

    Get Price
  • 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.

    Get Price
  • 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.Cited by: 20

    Get Price
  • CN103616445B - 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 optimalAuthor: 王宇, 李丽, 周永言

    Get Price
  • Detection of decomposition products in SF6: A comparison

    Surveillance of SF6 decomposition products is significant for detection of partial discharge (PD) in gas insulation switchgear (GIS). As a basis in on-site detection and diagnosis, PD early

    Get Price
  • Research on Solid Products of SF6 Decomposition Under

    Detection of gas decomposition products is widely used for condition diagnosis of SF6-insulated equipment because of its anti-electromagnetic-interference ability and high sensitivity.

    Get Price
  • Fourier transform infrared spectroscopy quantitative

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

    Get Price
  • 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.

    Get Price
  • The decomposition products of sulfur hexafluoride (SF6

    Nov 01, 2007Based on the previous description, the identified products in the SF 6 decomposition system were 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.

    Get Price
  • Optical technology for detecting the decomposition

    Quantitative detection of these decomposition products can be used to evaluate the state of the equipments insulation. A gas chromatography system was established to detect SF6 decomposition

    Get Price
  • Quantitative detection of trace H2S based on ultraviolet

    Li X 2016 The quantitative detection research of SF6 characteristic decomposition components SO2 and CS2 based on ultraviolet differential optical absorption spectrometry (Chongqing, China: Chongqing University) Google Scholar

    Get Price
  • SF6 Gas Quantitative Leak Detector Price Made in China

    HZIR-3000 SF6 Gas Micro Leak Detection Test. HZIR-3000 SF6 Gas Micro Leak Detection Test 1. Purpose HZIR-3000 SF6 Quantitative leak detector is the most ideal test tools and methods of SF6 Micro leaks at present.It is efficient and accurate. 2. Technical specifications 3.Operating steps and instructions 1 、 Check oil...

    Get Price
  • OSA | Highly sensitive photoacoustic multicomponent gas

    A ppb-level photoacoustic multicomponent gas sensor system for sulfur hexafluoride (SF6) 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.

    Get Price
  • Quantitative detection of H 2 S and CS 2 mixed gases based

    This method effectively utilizes the regularity of the absorption of two gases in the UV spectrum region, and realizes the quantitative detection of the two gases mixture, which is suitable for the quantitative detection of SF 6 decomposition components. 2 Theory 2.1 Principle of UV

    Get Price
  • Fourier transform infrared spectroscopy quantitative

    Quantitative detection of these decomposition products can be used to evaluate the state of the equipments insulation. A gas chromatography system was established to detect SF6 decomposition

    Get Price
  • Ni-CNT Chemical Sensor for SF6 Decomposition Components

    SF 6 decomposition components detection is a key technology to evaluate and diagnose the insulation status of SF 6-insulated equipment online, especially when insulation defects-induced discharge occurs in equipment.In order to detect the type and concentration of SF 6 decomposition components, a Ni-modified carbon nanotube (Ni-CNT) gas sensor has been prepared to analyze its gas sensitivity

    Get Price
  • L. DONG | Professor (Full) | PhD | Shanxi University

    An optical sensor for highly sensitive detection of carbon monoxide (CO) in sulfur hexafluoride (SF6) was demonstrated by using quartz-enhanced photoacoustic spectroscopy (QEPAS) technique.

    Get Price
  • 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.

    Get Price
  • 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

    Get Price
  • Fourier transform infrared spectroscopy quantitative

    Feb 05, 2015SF6 was selected as the background gas for Fourier transform infrared spectroscopy (FTIR) detection in this study. SOF2, SO2F2, SO2, and CO were selected as the characteristic decomposition components for system analysis.

    Get Price
  • 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.

    Get Price
  • Xin Lis research works | Tianjin Medical University

    Xin Lis 24 research works with 483 citations and 1,663 reads, including: Ligand fishing with cellular membrane-coated cellulose filter paper: a new method for screening of potential active

    Get Price
  • Development of a suitcase time‐of‐flight mass spectrometer

    At present, many methods 1-10 have been used to detect the SF 6 decomposition components in GIS, for instance, gas chromatography (GC), 7-9 gas detection tube, 10 infrared absorption spectrometry, 1, 4-6 and metal oxide semiconductor gas sensor. 2, 3 Mass spectrometry has been regarded as an effective technique with the features of high

    Get Price
  • Ppb-level photoacoustic sensor system for saturation-free

    Mar 01, 2019The SF 6 concentration in an electric power system is usually 99.8%, which means that the detection of the trace gaseous decomposition is operated in a pure SF 6 buffer gas rather than in N 2 or air environment as usual. Several SF 6 physical constants such as the density, thermal conductivity, molar mass, specific heat and viscosity strongly differ from those applicable to N 2 or air.

    Get Price
  • 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

    Get Price
  • 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

edge-iconRelated News
toTop
Click avatar to contact us
Chat Online