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Advantages of SF6 decomposition Components Detection

Advantages of SF6 decomposition Components Detection

Jan 24, 2017 · Comparing all of the detection methods, diagnosing the insulation defect through analyzing the decomposed gases of SF6 by chemical gas sensors is the optimal method due to its advantages, such as high detection accuracy and stability, signifying the importance of developing chemical gas sensor used in SF6 insulated equipment.

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  • The SF6 Decomposition Mechanism: Background and Significance

    Jan 24, 2017 · Comparing all of the detection methods, diagnosing the insulation defect through analyzing the decomposed gases of SF6 by chemical gas sensors is the optimal method due to its advantages, such as high detection accuracy and stability, signifying the importance of developing chemical gas sensor used in SF6 insulated equipment.

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  • Ni-CNT Chemical Sensor for SF6 Decomposition Components

    Oct 16, 2018 · 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 and selectivity to SF 6 decomposition components based on an experimental and density functional theory (DFT) theoretical study. Experimental results show that a Ni-CNT gas sensor presents an outstanding gas sensing property according to the significant change of conductivity during the gas molecule adsorption.

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  • Optical technology for detecting the decomposition products

    The use of optical methods for detecting the products has many advantages, such as high precision, fast response, and sample reusability. Thus far, optical detection methods have been applied for...

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  • Detection of decomposition products in SF6: A comparison of

    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

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  • Byproducts of Sulfur Hexafluoride (SF6) Use in the Electric

    Detection Procedures and Guidelines SF 6 byproducts are difficult to detect chemically under normal working conditions. The presence of various SF 6 electrical discharge decomposition products and impurities (as well as the presence of SF 6 itself) makes measurement of the different byproducts problematic. A recent report in Transmission and

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  • Nanomaterials Based Gas Sensors for SF6 Decomposition

    Diagnosing the insulation defect through analyzing the decomposed gases of SF6 by chemical gas sensors is the optimal method due to its advantages. Carbon nanotubes, TiO2 nanotubes and graphene are chosen as the gas-sensing materials to build specific gas sensors for detecting each kind of SF6 decomposed gases and then enhance the gas sensitivity and selectivity by material modification.

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  • Optical technology for detecting the decomposition products

    Compared with chemical detection, optical detection has many advantages such as fast response, high sensitivity, only requiring a small sample, and sample reusability. Most of the main SF6 SF 6 decomposition products can be detected optically.

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  • Comparative Study of Materials to SF6 Decomposition Components

    The typical decomposition components of SF 6 detected by gas sensor. Metal atom modification not only greatly improves the gas-sensing properties to SF 6 decomposition components, but also enhances the gas-sensing selectivity of sensors to different gas molecules.

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  • Mechanism of Formation of SF Decomposition Gas Products and

    method, were highlights and discussed for the detection of SF 6 decomposition products. Keywords: SF 6 decomposition products; discharge methods; GC-MS, electrochemical methods; SO 2 1. INTRODUCTION Sulfur hexafluoride (SF 6) is a colorless, orderless, non-toxic, non-flammable gas and widely

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  • Fourier transform infrared spectroscopy quantitative analysis

    Feb 05, 2015 · 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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  • Decomposition Characteristics of SF6 and Partial Discharge

    SF6gas component analysis (GCA) is a non-electrical detection method, which can effectively avoid the complex electromagnetic interference of substations and has become a popular research Energies2017, 10, 556; doi:10.3390/en10040556www.mdpi.com/journal/energies Energies2017, 10, 556 2 of 16 topic in recent years [13–16].

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  • Adsorption mechanism of SF6 decomposition components onto N

    Sep 01, 2018 · TiO 2 based gas sensors in recent years have been widely studied for application in SF 6 insulation devices to estimate their insulation status through the detection of SF 6 decomposed components, due to their strong adsorption ability and sensing performance towards gas molecules.

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  • Detection of SF6 Decomposition Components Under Partial

    Mar 01, 2016 · Abstract: Photoacoustic (PA) spectrum is a promising method in SF 6 decomposition product detection. To develop an on-line monitoring device, a gas detection system based on PA effect was introduced. Three kinds of gases, SO 2, CO 2, and CF 4, were chosen to test the device performance. Some experiments were conducted to get the relationship of

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  • (PDF) 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.

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  • Pt-doped TiO2-based Sensors for Detecting SF6 Decomposition

    The detection of SF6 decomposition gas can be used for on-line insulation detection of gas insulation equipment in electric power industry. In order to develop a new sensor gas sensing material

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  • Adsorption of SF6 decomposition components on Pt3-TiO2(1 0 1

    SF 6 decomposition components detection plays an important role in diagnosing and evaluating the electric discharge faults in SF 6-insulated equipment.In this paper, Pt 3-supported TiO 2 (1 0 1) was used to study the influence of the Pt clusters modification on the gas sensing property of TiO 2 (1 0 1) material to the characteristic decomposition components of SF 6: H 2 S, SO 2, SOF 2 and SO 2

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  • Mechanism and Application of Carbon Nanotube Sensors in SF6

    further research trend on CNTs in the detection of SF 6 decomposition components is also put forward. Keywords: CNTs, SF 6, Decomposition components, Gas response Introduction Sulfur hexafluoride (SF 6) gas is widely applied as electrical insulator as well as arc-quenching medium in gas-insulated switchgear (GIS) of power system due to its excellent chem-

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  • Online detection technology for SF 6 decomposition products

    The decomposition component analysis method can be used to monitor and diagnose the insulation state of SF6 electrical equipment in power industry. Here, the authors firstly compared the advantages and disadvantages of various SF6 decomposition products detection methods and analysed their feasibility of online monitoring.

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  • IntechOpen Open Access Publisher - Open Science Open Minds

    Considering the shortcomings of general detection methods, carbon nanotubes (CNTs) gas sensor was studied to detect the SF6 decomposition components because of its advantages in large surface activity and abundant pore structure, et al. The large surface area has a strong adsorption and desorption capacity.

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  • The 3 Methods of SF6 Leak Detection - GasQuip SF6 Equipment

    Things such as the temperature outside, fog cloud coverage, the pressure of the breaker, and equipment reliability can cause delays in leak detection. There are 3 main ways of detecting SF6 leaks, and in this article we will discuss the pros and cons of each method. SF6 Camera. The use of an SF6 camera is arguably the best method of finding

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  • SF6 Gas Detection For HV GIS Switchgear - Crowcon F-Gas Detector

    Sep 30, 2020 · The Crowcon F-gas detector for sulphur hexafluoride (SF6) is ideal for GIS switchgear applications and is part of the Crowcon fixed gas detector range. Crowcon F-gas provides a lower total cost of ownership by providing fast, stable and dependable SF6 gas detection performance with infrared technology. Crowcon F-Gas SF6 Gas Detector

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  • sf 6 Leak Detection wika

    The importance of monitoring SF6 gas leaks and emissions Although SF 6 is non-toxic, any escaped gas can displace oxygen in the air and lead to asphyxiation in closed spaces. It is also a potent greenhouse gas – 23,900 times more effective than carbon dioxide at trapping infrared radiation in the atmosphere.

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  • Study on PD detection in SF6 using multi-wall carbon NTs gas

    These SF6 decomposition products can be qualitatively and quantitatively detected with relevant detection methods, and such detection contributes to diagnosing the internal faults and evaluating

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  • Cantilever enhanced photoacoustic - ScienceDirect

    Sep 01, 2016 · These methods are not appropriate for the online monitoring of SF6 characteristic decomposition components. The technology of photoacoustic spectrometer (PAS) gas detection has the advantage of high detection speed, high detection precision, and strong capacity to resist disturbance [15] , [16] , [17] .

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  • High sensitivity gas sensor to detect SF6 decomposition

    Oct 01, 2020 · We theoretically explored the possibility of monolayer antimonide phosphorus (SbP) detecting SF 6 decomposition components based on the first-principles calculations. The calculated results indicate that monolayer SbP exhibits more excellent gas sensing performance to SO 2 than to other gas molecules, with the adsorption energy of −0.541 eV and the charge transfer of −0.232 e.

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  • Application of CNTs Gas Sensor in Online Monitoring of SF6

    Feb 07, 2017 · The detection and analysis of SF6 decomposition components are of great significance in online condition assessment and fault diagnosis of GIS. Considering the shortcomings of general detection methods, carbon nanotubes (CNTs) gas sensor was studied to detect the SF6 decomposition components because of its advantages in large surface activity and abundant pore structure, et al.

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  • Frontiers | Synthesis of Hollow Nanofibers and Application on

    Jul 26, 2019 · Therefore, the detection of the typical decomposition components of SF 6 gas is significant for identifying and diagnosing the insulation faults of the GIS. Over the past few years, photoacoustic (PA) spectroscopy ( Luo et al., 2015 ), gas chromatography ( Jong et al., 2015 ), and infrared absorption spectrometry ( Dong et al., 2017 ) have been

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  • Ultraviolet differential optical absorption spectrometry

    ultraviolet spectroscopic detection of SO 2 Yu Zhao, Xianpei Wang, Dangdang Dai et al.-Calculated rate constants of the chemical reactions involving the main byproducts SO 2 F, SOF 2, SO 2 F 2 of SF 6 decomposition in power equipment Yuwei Fu, Mingzhe Rong, Kang Yang et al.-Chemical kinetic modeling and experimental study of SF 6 decomposition

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  • Sensors | Free Full-Text | Analysis of the Sensitivity of K

    The detection of SO 2 and H 2 S, two types of important decomposition components of SF 6, has been thoroughly investigated. However, studies on the detection of two other types of components, namely, SOF 2 and SO 2 F 2, are rare, and no breakthrough progress has been reported [17,18,19,20,21,22,23].

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