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SF6 Decomposition density sensor for 400kv

SF6 Decomposition density sensor for 400kv

2017-1-24Gas 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

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  • SF6 Decomposition Gas Sensor Based on GeP

    In present study, the adsorption of SF6 and its decomposition components (H2S, SO2, SOF2, and SO2F2) on ceria (110) was investigated by performing calculations based on density functional theory

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  • Ni-CNT Chemical Sensor for SF6 Decomposition

    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 sensorCited by: 5

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  • SF6 Decomposition Gas Sensor Based on GeP

    Abstract: In this paper, we adopted the first-principles calculations to investigate the sensing properties of the GeP monolayer to four SF 6 decomposition gas molecules (H 2 S, SO 2, SO 2 F 2 and SOF 2).By discussing the calculated adsorption energy, charge transfer, work function variation combined with charge density differenceCited by: 1

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  • The SF6 Decomposition Mechanism: Background and

    2017-1-24Gas 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 decompositionCited by: 1

    Get Price
  • TiO2 Nanotube Array Sensor for Detecting the SF6

    The traditional SF6 decomposition gas sensor based on metal oxide semiconductor is still restrained by its disadvantages of high power consumption and poor selectivity, which limits its further

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  • OSA | Highly sensitive SO2 photoacoustic sensor for SF6

    A compact ppb-level SO2 photoacoustic sensor was developed for the application of SF6 decomposition detection in electric power systems. The selection of the SO2 target spectrum is discussed in detail in the infrared (IR) and ultraviolet (UV) spectral regions. Based on the result of the spectrum selection, a small-sized UV-bandCited by: 13

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  • Tellurene Nanoflake-Based Gas Sensors for the

    The sensors response to the main characteristic gaseous decomposition products of SF6 is evaluated. The gas sensing characteristic curves of the Pt-doped TiO2 nanotube sensor and intrinsic TiO2

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  • Calibration methods of carbon nanotube gas

    In order to detect the type and concentration of SF6 decomposition components, a Ni-modified carbon nanotube (Ni-CNT) gas sensor has been prepared to analyze its gas sensitivity and selectivity to

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  • Multivariate Evaluation Method for Screening

    KEYWORDS: gas sensor, multivariate evaluation, principal component analysis, information entropy, variation coe ffi cient, SF 6 decomposition product A common phenomenon for gas sensor is cross

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  • A highly sensitive and selective SnS2 monolayer sensor in

    2021-3-1A novel 2D material SnS 2 with an appropriate bandgap and high mobility, has been fabricated successfully and shows promising potential in electronic circuits. However, its applications in gas sensing are still poorly studied. In this work, the sensing behavior of SnS 2 monolayer for SF 6 and its five decomposition gasesAuthor: Shiying Guo, Xuemin Hu, Yong Huang, Wenhan Zhou, Hengze Qu, Lili Xu, Xiufeng Song, Shengli Zhang, Ha...

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  • High sensitivity gas sensor to detect SF6 decomposition

    2020-10-1Development of SF6 decomposition gas sensor Surf. Coat. Technol. , 169–170 ( 2003 ) , pp. 643 - 645 , 10.1016/s0257-8972(03)00095-1 Article Download PDF View Record in Scopus Google ScholarCited by: 1

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  • 武汉大学电气与自动化学院

    Translate this page2018-10-22Adsorption of SF6 decomposed gas onanatase (101) and (001) surfaces with oxygen defect: A density functional theory study. Scientific Reports, 2014, 4(4762): 1-11. (SCI: 000334836500009)

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  • First-principles study of Pd-MoSe2 as sensing material

    2019-12-17SF 6 decomposition component detection is an effective way to diagnose the severity and type of electric discharge. In this study, MoSe 2 based material has been chosen as the gas sensing material for the detection of SOF 2 and SO 2 F 2, the two characteristic decomposition components of SF 6.Based on densityAuthor: Hai Qian, Jun Deng, Haibin Zhou, Xu Yang, Wei Chen

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  • Sensors | Free Full-Text | Gas Sensing Analysis of Ag

    Detection of decomposition products of sulfur hexafluoride (SF6) is one of the best ways to diagnose early latent insulation faults in gas-insulated equipment, and the occurrence of sudden accidents can be avoided effectively by finding early latent faults. Recently, functionalized graphene, a kind of gas sensing material, has been reported to show good application prospects in the gas sensorCited by: 10

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  • 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 twoCited by: 8

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  • Highly sensitive photoacoustic multicomponent gas

    2019-2-20Highly sensitive photoacoustic multicomponent gas sensor for SF6 decomposition online monitoring XUKUN YIN, 1,2,3 LEI DONG,1,2,* HONGPENG WU,1,2 LEI ZHANG,1,2 WEIGUANG MA, 1,2 WANGBAO YIN,1,2 LIANTUAN XIAO,1,2 SUOTANG JIA,1,2 AND FRANK K. TITTEL 3 1State Key Laboratory of Quantum

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  • Adsorption and sensing behaviors of SF6 decomposed

    2020-5-151. Introduction. Sensing or removing SF 6 decomposed species is regarded as an effective manner to estimate or guarantee the operation status of the insulation system , , , , , .Unlike the low-fluoride sulfides such as SF 5, SF 4 and SF 3 that have the opportunity to compound with surrounding F ion and form SF 6, , ,

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  • Adsorption and gas-sensing properties of Pt2–GaNNTs

    2020-9-15Partial electric discharge faults in gas-insulated switchgear (GIS) seriously affect the operational stability of power systems. In this study, H 2 S, SO 2, SO 2 F 2, and SOF 2 were selected as characteristic SF 6 decomposition products to characterize the partial electric discharge faults in a GIS. Pt cluster-modifiedCited by: 4

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  • A Pt-Doped TiO2 Nanotube Arrays Sensor for Detecting

    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 isCited by: 25

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  • A Pt-Doped TiO2 Nanotube Arrays Sensor for Detecting

    The detection of partial discharge and analysis of SF6 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 TiO2 nanotube arrays sensor for detecting sulfur hexafluoride (SF6) decomposition products is proposed in thisCited by: 25

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  • Sensors | Free Full-Text | Adsorption Properties of Pd3

    In this study, we investigate Pd3-cluster-modified 555–777 graphene (Pd3-graphene) as a novel resistor-type gas sensor to detect SF6 decomposition products based on density functional theory calculations. We obtained and minutely analyzed the relevant parameters of each most stable adsorption configuration to exploreCited by: 1

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  • Nanomaterials | Free Full-Text | The Adsorption and

    In this paper, the Ir-modified MoS2 monolayer is suggested as a novel gas sensor alternative for detecting the characteristic decomposition products of SF6, including H2S, SO2, and SOF2. The corresponding adsorption properties and sensing behaviors were systematically studied using the density functional theory (DFT)Author: Hongcheng Liu, Feipeng Wang, Kelin Hu, Tao Li, Yuyang Yan, Jian Li

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  • Nanomaterials‐based gas sensors of SF6 decomposed

    In recent years, many novel sensing nanomaterials were explored experimentally and theoretically as chemical gas sensors to detect sulphur hexafluoride (SF 6) decomposed species with rapid response, high sensitivity and selectivity, as well as low cost, in order to estimate and guarantee the operation status of SF 6Cited by: 20

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  • SF 6 gas density monitor, sf6-gas gas density monitor

    About product and suppliers: 1,547 sf6 gas gas density monitor products are offered for sale by suppliers on Alibaba.com A wide variety of sf6-gas gas density monitor options are available to you, There are 248 suppliers who sells sf6 gas gas density monitor on Alibaba.com, mainly located in Asia.

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  • Spatial-filter-installed Shack–Hartmann sensor for two

    2018-8-2Figure 1 shows the basic concept of the Shack–Hartmann sensor for measuring an electron density distribution in a plasma. The Shack–Hartmann sensor is composed of an image camera and microlens array converting the localised wavefront gradients of a laser beam into the shifts of the focal spot positions [ 24

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  • A simulation of Pd-doped SWCNTs used to detect SF6

    Carbon-nanotube doping is extensively researched. This work aims to investigate a novel sensor for detecting the five gas components of SF 6 decomposition (i.e., SO 2, H 2 S, SOF 2, SO 2 F 2, and CF 4) using Pd-doped zigzag (8, 0) single-wall carbon nanotubes (Pd-SWCNTs).We compute the preferential adsorption sites, bondingCited by: 63

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  • SF6 Decomposition for mining - mmarzeszow.pl

    The SF6 Decomposition Mechanism: Background and Significance. SF6 decomposition components using gas sensor method is to develop nano-sensor technol-. ogy. Developing composite nanometer sensor technology performance according to the theoretical results and prepare gas sensors with high sensitivity. and selectivity to SF6 decomposition

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