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SF6 Decomposition process for pinggao

SF6 Decomposition process for pinggao

Pinggao Group, a subsidiary of the State Grid Corporation of China, is using multiphysics simulation to investigate possible solutions in order to develop an efficient, stable, and reliable GIS. ... (SF6), a synthetic inert gas, for insulation. ... The designers of GIS products at Pinggao

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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

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  • The SF6 Decomposition Mechanism: Background

    The result shows that: SF6 begins to decompose obviously at 300&C and the main decomposition components contain CO2, SO2F2, SOF2, SOF4, SO2 and H2S; the improvement of fault temperature will

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  • The decomposition products of sulfur hexafluoride (SF6

    2007-11-1Sulfur hexafluoride (SF 6) is being widely used in a variety of industrial processes, commercial products and scientific fields due to its unique characteristics such as relatively low toxicity, extreme inertness and high dielectrics.However, the chemically stable gas is one of the most potent greenhouse gases (GHGs) thatCited by: 120

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  • Decomposition of SF6 in an RF Plasma Environment

    2018-6-12Decomposition of SF 6 A sensitivity analysis of an earlier model showed that the applied power was the most important parameter and positively affects the decomposition fraction of re-actants in an RF plasma reactor.13 Figure 2 shows that when no oxygen was added to the reactor (feed O 2 /SF 6 ratio = 0.0), η SF6Cited by: 25

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  • SF6 Decomposition Gas Sensor Based on GeP

    In this paper, we adopted the first-principles calculations to investigate the sensing properties of the GeP monolayer to four SF6 decomposition gas molecules (H2S, SO2, SO2F2 and SOF2).

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  • Optical technology for detecting the decomposition

    Technology for Detecting SF6 Decomposition Products. With the development of optical detection technology, researchers are pursuing higher detection accuracy, higher sensitivity, and faster detection time. Equally, it is hoped that the structure would be as simple and compact as possible for onsite or on-line monitoring.Cited by: 5

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  • Laser-ablation-assisted SF6 decomposition for extensive

    2019-4-1We present a safe, clean, convenient and easy-to-control method for extensive fluorination of graphene using laser-ablation-assisted decomposition of gaseous SF 6 molecules. The decomposition process is based on irradiation of a silicon target using a Nd:YAG laser (532 nm) in an SF 6 atmosphere. The reactiveCited by: 4

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  • SF6 positive DC partial discharge decomposition

    The condition monitoring and fault diagnosis method based on decomposed component analysis (DCA) for SF 6 gas‐insulated equipment, which mainly aiming at AC SF 6 gas‐insulated equipment, has become a research hotspot. Therefore, SF 6 positive DC partial discharge (PD) decomposition experiments under four typical

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  • SF6 By-products: Safety, Cleaning, and Disposal

    2016-2-176 Decomposition and Contamination • Reactive decomposition byproducts form when SF 6 is exposed to: 1. spark discharges, 2. partial discharges, 3. switching arcs, and 4. failure arcing • Decomposition byproducts can take the form of gas or powders • Other types of contaminants can include moisture and air

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  • Multivariate Evaluation Method for Screening Optimum

    2020-7-24In previous studies, the selection of optimal gas-sensing materials for detecting target gases mainly relied on their response value, but other indices, such as the recovery capability of materials, have usually been overlooked. Here, we propose a new method for evaluating sensor effectiveness that includes a broaderAuthor: Jifeng Chu, Xu Yang, Aijun Yang, Dawei Wang, Huan Yuan, Xiaohua Wang, Mingzhe Rong

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  • Enhancing the GIS Development Process at Pinggao

    Pinggao Group, a subsidiary of the State Grid Corporation of China, is using multiphysics simulation to investigate possible solutions in order to develop an efficient, stable, and reliable GIS. (SF6), a synthetic inert gas, for insulation. The designers of GIS products at Pinggao

    Get Price
  • China SF6 Gas Decomposition Products Analyzer with

    China SF6 Gas Decomposition Products Analyzer with Good Sensitivity, Find details about China SF6 Decomposition Product Analyzer, SF6 Gas Analyzer from SF6 Gas Decomposition Products Analyzer with Good Sensitivity - HV Hipot Electric Co., Ltd.

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  • First-principles study of Pd-MoSe2 as

    Translate this pageSF6 decomposition component detection is an effective way to diagnose the severity and type of electric discharge. In this study, MoSe2 based material has been chosen as the gas sensing material for the detection of SOF2 and SO2F2, the two characteristic decomposition components of SF6.

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  • Method and device for the detection of SF6

    patents.justia.com›Justia11. A process for detecting SF6 decomposition products comprising passing an SF6 gas containing SOF2 or SF4 through a catalyst which converts SOF2 into SO2, and detecting the concentration of SO2 gas that has been converted. 12. A process as claimed in claim 11 including a flow control which regulates the rate of flow of the

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  • Decomposition of SF6 in an RF plasma environment.

    Decomposition of SF6 in an RF plasma environment. Shih M, Lee WJ, Tsai CH, Tsai PJ, Chen CY. Sulfur hexafluoride (SFd)-contained gas is a common pollutant emitted during the etching process used in the semiconductor industry. This study demonstrated the application of radio-frequency (RF) plasma in the decompositionCited by: 25

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  • Application of Electron Beams for the Treatment of VOC

    2019-5-26Electron-beam technology is based on using radical reactions to destroy air pollutants. Twenty volatile organic compounds (VOCs) were irradiated with electron beams in a laboratory-scale apparatus to examine the influence of the chemical structures of the VOCs from an energetic point of view. The experiments

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  • Thermal Decomposition Properties of Epoxy Resin in

    As a promising alternative for pure SF6, the mixture of SF6/N2 appears to be more economic and environment-friendly on the premise of maintaining similar dielectric properties with pure SF6. But less attention has been paid to the thermal properties of an SF6/N2 mixture, especially with insulation materials overheating happening simultaneously. In this paper, thermal decompositionCited by: 2

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  • Theoretical study of the neutral decomposition of SF6 in

    2016-8-26In the presence of H 2 O and O 2, the dissociation products of SF 6 will decompose to form several main stable byproducts (i.e. SOF 2, SOF 4 and SO 2 F 2) in an electrical discharge.These byproducts are chemically active and have been shown experimentally to be associated with discharge faults. However, the relationships between the discharges and types of decompositionCited by: 39

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  • Decomposition of SF6 in an RF plasma environment

    Sulfur hexafluoride (SFd)-contained gas is a common pollutant emitted during the etching process used in the semiconductor industry. This study demonstrated the application of radio-frequency (RF) plasma in the decomposition of SF6. The decomposition fraction of SF6 [etaSF6 (C(in)-C(out))/C(in) x 10Cited by: 25

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  • Correlation characteristics between SF6 decomposition

    Abstract: To study the correlation characteristics between SF 6 decomposition components and discharge strength under negative DC partial discharge (PD) initiated by free metal particle defect, SF 6 decomposition data were obtained under different voltages on the basis of constructing SF 6 decomposition experimental platform. The variation law of SF 6 decompositionCited by: 5

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  • Insights on decomposition process of c-C4F8 and c

    It is found that the decomposition of c-C 4 F 8 mainly produces CF 2, F, CF 3, CF, C, CF 4 and C 2 F 4. c-C 4 F 8 can decompose to C 2 F 4 by absorbing 43.28 kcal mol −1, which is the main decomposition path and this process occurs easily under high temperature. There is a dynamic equilibrium process between the variousCited by: 1

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  • Theoretical study of the decomposition mechanism of

    2018-9-10The compositions of SF 6 arc plasma are contaminated by Cu vapor through electrode erosion and thus affect the performance of the high-voltage SF 6 circuit breaker. But the essential data for chemical kinetic models to study the non-equilibrium compositions of SF 6 /Cu mixtures, namely the decomposition mechanism of SF 6 /Cu mixtures, is still not clear. . Besides, SF 6 decompositionCited by: 7

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  • Pinggao Group Co Ltd - chinadaily.com.cn

    Pinggao Group Co Ltd is a wholly owned subsidiary of State Grid International Development Ltd. Its predecessor is Pingdingshan High Voltage Switchgear Factory, founded in 1970. It is an RD and

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  • Processes | Free Full-Text | Alternative Environmentally

    So, the topic is interesting. SF6 has really prefect insulation properties, much better than air, vacuum or other gas types. Anyway, crucial disadvantage of the gas is its GWP, much bigger than in case of CO2. The solution, used for many years, is used mixture of SF6 and air with different ratio.

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  • Thermal Decomposition Properties of Epoxy Resin in

    Also thermal decomposition process of epoxy resin was simulated by the ReaxFF force field to reveal basic chemical reactions in terms of bond-breaking order, which further verified that CO₂ and H₂O produced during thermal decomposition of epoxy resin can intensify degradation of SF₆ dielectric property.Cited by: 2

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  • China Htfj-3h Sf6 Decomposition Tester - China Sf6

    Product overview SF6 decomposition tester integrates SO2, H2S, and CO analyzers as one. One time field measurement can complete the two detections, greatly save the gas in the device, which can save 1/2 of gas usage, while reduce the users workload and improve work efficiency.

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  • SF6 Decomposition for subway - mmarzeszow.pl

    SF6 Decomposition for subway. SF6 gas excellence. Measuring system for laboratory analysis of decomposition. Special features Identification and precise quantification of the main decomposition products from SF6 gas Resistant against highly-corrosive gases Non-destructive method of measurement Factory...

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  • Chemical Decomposition of High Pressure SF6/N2 (5:95

    6 hours agoSulfur hexafluoride (SF6) is the insulator gas used in most of equipments handling high and very high voltages.Owing to its high global warming potential, SF6 has been classified during the Kyoto conference on climate change among the greenhouse gases. Its emission in the atmosphere must therefore be

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