• 专利附录
  • 专利说明
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    • 专利摘要:
    The invention relates to the use of a gas as an electrical isolation medium and / or electric arc extinguishing, wherein the gas comprises a hexafluorobutene. The invention also relates to an electrical apparatus comprising a sealed enclosure in which there are electrical components and this gas.
    公开号:FR3040525A1
    申请号:FR1557996
    申请日:2015-08-28
    公开日:2017-03-03
    发明作者:Wissam Rached
    申请人:Arkema France SA；
    IPC主号:
    专利说明:

    USE OF HEXAFLUOROBUTENES FOR THE INSULATION OR EXTINCTION OF ELECTRIC ARCS
    FIELD OF THE INVENTION
    The present invention relates to a gas used for the electrical insulation or extinguishing of electric arcs, as well as electrical appliances provided with an enclosure containing this gas.
    TECHNICAL BACKGROUND
    In medium and high voltage electrical appliances, the electrical insulation and, where appropriate, the extinction of electric arcs are typically provided by a gas that is confined within an enclosure of these devices. Currently, the most commonly used gas is sulfur hexafluoride (SFe): this gas has a relatively high dielectric strength, good thermal conductivity and low dielectric losses. It is chemically inert and non-toxic to humans and animals and, after being dissociated by an electric arc, it recombines quickly and almost completely. In addition, it is nonflammable and its price is still moderate today.
    However, SF6 has the major disadvantage of having a global warming potential (GWP) of 22,800 (relative to CO2 over 100 years) and a residence time in the atmosphere of 3,200 years, which places it among the gases with strong greenhouse effect.
    Industrialists are therefore looking for alternatives to SF6. Hybrid systems have been proposed which combine gas insulation with solid insulation (EP 1724802). This, however, increases the volume of electrical appliances compared to that allowed by SFe insulation; and the cut in the oil or vacuum requires a redesign of the equipment. As an alternative to SF6, it is known to use so-called simple gases such as air or nitrogen, which have no negative impact on the environment. But these have a dielectric strength much lower than that of SF6; their use for electrical insulation and / or extinction of electric arcs in high voltage / medium voltage devices involves drastically increasing the volume and / or the filling pressure of these devices, which goes against efforts that have been made in recent decades to develop compact electrical appliances, with increasingly small footprint.
    Perfluorocarbons generally have interesting dielectric withstand properties, but their GWP typically ranges from 5,000 to 10,000. Other promising alternatives from an electrical and GWP point of view , such as trifluoroiodomethane, are classified as carcinogenic, mutagenic and reprotoxic category 3, which is unacceptable for use on an industrial scale.
    Mixtures of SF6 and other gases such as nitrogen or nitrogen dioxide are used to limit the impact of SF6 on the environment: see, for example, WO 2009/049144. Nevertheless, because of the strong SF6 GWP, the GWP of these mixtures remains very high. Thus, for example, a mixture of SF6 and nitrogen in a volume ratio of 10/90 has a dielectric strength in alternating voltage (50 Hz) equal to 59% of that of SF6 but its GWP is of the order of 8 000 to 8 650. Such mixtures can not therefore be used as a low environmental impact gas.
    The document FR 2955970 proposes the use of fluoroketones in the gaseous state for electrical insulation. The fluoroketones can be combined with a carrier gas or dilution gas (for example nitrogen, air, nitrous oxide, carbon dioxide, oxygen, helium, etc.).
    Document FR 2975818 proposes a mixture of octofluorobutan-2-one and carrier gas as isolation medium.
    The document FR 2983341 proposes the use of polyfluorinated oxiranes as electric insulation gas and / or electric arc extinguishing.
    Document FR 2986192 proposes the use of a combination of polyfluorinated oxirane and hydrofluoroolefin as an electrical insulating gas. The hydrofluoroolefins mentioned are 1,3,3,3-tetrafluoropropene (HFO-1234ze), 2,3,3,3-tetrafluoropropene (HFO-1234yf) and 1,2,3,3,3-pentafluoropropene (HFO -1225ye).
    WO 2012/038443 proposes the use of a mixture of SF6 and fluoroketone as electrical insulating gas.
    WO 2012/160158 proposes the use of a mixture of decafluoro-2-methylbutan-3-one and a carrier gas as an electrical insulating gas.
    The document WO 2013/004796 proposes the use of a gas based on hydrofluoroolefin as an electrical insulation gas. The hydrofluoroolefins more particularly proposed are 1,3,3,3-tetrafluoropropene (HFO-1234ze) and 2,3,3,3-tetrafluoropropene (HFO-1234yf).
    The document WO 2013/041695 proposes the use of a mixture of hydrofluoroolefin and of fluoroketone as electrical insulation gas. The hydrofluoroolefins more particularly proposed are 1,3,3,3-tetrafluoropropene (HFO-1234ze), 2,3,3,3-tetrafluoropropene (HFO-1234yf) and 1,2,3,3,3-pentafluoropropene (HFO-1225ye).
    The document WO 2013/136015 proposes the use of a mixture of hydrofluoroolefin and hydrofluorocarbon as electrical insulation gas. The hydrofluoroolefins more particularly proposed are 1,3,3,3-tetrafluoropropene (HFO-1234ze), 2,3,3,3-tetrafluoropropene (HFO-1234yf) and 1,2,3,3,3-pentafluoropropene (HFO-1225ye). Hydrofluorocarbons more particularly proposed are 1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea), pentafluoroethane (HFC-125) and 1,1,1,2-tetrafluoroethane (HFC-134a). ).
    There is still a need to develop electrical isolation and / or arc extinguishing media with both low GWP and high dielectric strength.
    SUMMARY OF THE INVENTION The invention primarily relates to the use of a gas as an electrical isolation and / or arc extinguishing medium, wherein the gas comprises a hexafluorobutene.
    According to one embodiment, hexafluorobutene is 1,1,1,4,4,4-hexafluorobut-2-ene, preferably in trans form, or 2,3,3,4,4,4-hexafluorobut -1 -ene.
    According to one embodiment, the use is a use as an electrical isolation medium and / or electric arc extinguishing in a medium voltage substation electrical apparatus.
    According to one embodiment, the gas contains: from 10 to 100 mol% of trans-1,1,1,4,4,4-hexafluorobut-2-ene, preferably from 20 to 75 mol% and more preferably from 30 to 40 mol%; and / or from 25 to 100 mol% of 2,3,3,4,4,4-hexafluorobut-1-ene, preferably from 35 to 75 mol% and more particularly preferably from 45 to 55 mol. .%.
    According to one embodiment, the gas also comprises a diluent, preferably chosen from air, nitrogen, methane, oxygen, carbon dioxide or a mixture of these; and preferably the gas is a binary mixture of a hexafluorobutene and a diluent.
    According to one embodiment, the use is carried out in a temperature range whose lower limit is from -30 to 20 ° C, preferably from -20 to 10 ° C, more preferably from -15 to 0 ° vs.
    According to an alternative embodiment, the gas consists essentially and preferably consists of hexafluorobutene or a mixture of hexafluorobutenes.
    In such a case, according to one embodiment, the use is carried out in a temperature range whose lower limit is greater than or equal to 0 ° C, or 2 ° C, or 5 ° C, or 10 ° vs. The invention also relates to an electrical apparatus comprising a sealed enclosure in which there are electrical components and an electrical insulating gas and / or electric arc extinguishing, wherein the gas comprises a hexafluorobutene.
    According to one embodiment, hexafluorobutene is 1,1,1,4,4,4-hexafluorobut-2-ene, preferably in trans form, or 2,3,3,4,4,4-hexafluorobut -1 -ene.
    According to one embodiment, the gas contains: from 10 to 100 mol% of trans-1,1,1,4,4,4-hexafluorobut-2-ene, preferably from 20 to 75 mol% and more preferably from 30 to 40 mol%; and / or from 25 to 100 mol% of 2,3,3,4,4,4-hexafluorobut-1-ene, preferably from 35 to 75 mol% and more particularly preferably from 45 to 55 mol. .%.
    According to one embodiment, the gas also comprises a diluent, preferably chosen from air, nitrogen, methane, oxygen, carbon dioxide or a mixture of these; and preferably the gas is a binary mixture of a hexafluorobutene and a diluent.
    According to an alternative embodiment, the gas consists essentially and preferably consists of hexafluorobutene or a mixture of hexafluorobutenes.
    According to one embodiment, the electrical apparatus is a medium voltage electrical appliance.
    According to one embodiment, the gas is at a pressure at 20 ° C. of 0.1 to 1 MPa, preferably of 0.11 to 0.5 MPa, and more particularly of 0.12 to 0.15 MPa.
    According to one embodiment, the electrical apparatus is selected from a gas-insulated electrical transformer, a gas-insulated line for the transmission or distribution of electricity, and an electrical connection / disconnection apparatus.
    The present invention overcomes the disadvantages of the state of the art. More particularly, it provides electrical insulation and / or arc-extinguishing media having both low GWP and high dielectric strength.
    This is accomplished by the discovery that hexafluorobutene-based media, or HFO-1336, exhibit remarkable dielectric strength properties and that, when mixed with inert compounds, they provide effective electrical isolation even at relatively low temperatures.
    DESCRIPTION OF EMBODIMENTS OF THE INVENTION The invention is now described in more detail and in a nonlimiting manner in the description which follows. The invention relates to a gas used as an electrical isolation medium and / or electric arc extinguishing.
    The gas according to the invention comprises at least one hexafluorobutene or HFO-1336. Preferably, it is 1,1,1,4,4,4-hexafluorobut-2-ene (or HFO-1336mzz), or 2,3,3,4,4,4-hexafluorobut-1 -ene (or HFO-1336yf).
    Alternatively, it is also possible to use 1,3,3,4,4,4-hexafluorobut-1-ene, 1,1,2,4,4,4-hexafluorobut-2-ene and / or 1,1,3,4,4,4-hexafluorobut-2-ene, for example.
    HFO-1336mzz may be in cis or trans form or may be a mixture of both forms. Preferably it is in trans form (HFO-E-1336mzz). It is also possible to use a mixture of several hexafluorobutenes, for example a mixture of HFO-1336mzz and HFO-1336yf.
    The gas may also comprise additional compounds, in particular a diluent (or dilution gas, or buffer gas) and optionally one or more other halogenated compounds (especially fluorinated compounds).
    According to one embodiment, the gas according to the invention comprises (or possibly consists essentially of, or possibly consists of) a mixture of one or more HFO-1336 and a diluent. Preferably it is a binary mixture consisting of HFO-1336mzz and a diluent, or consisting of FIFO-1336yf and a diluent.
    The diluent is an inert compound, which may be for example selected from air, nitrogen, methane, oxygen, nitrous oxide, helium and carbon dioxide. Mixtures of these are also possible.
    According to one embodiment, the gas according to the invention comprises (or possibly consists essentially of, or possibly consists of) a mixture of one or more compounds HFO-1336 and one or more other halogenated compounds, or of one or more compounds HFO-1336, at least one diluent, especially as mentioned above and one or more other halogenated compounds. As a halogenated compound that can be used in admixture with HFO-1336, there may be mentioned in particular a chlorocarbon, a hydrochlorocarbon, a chlorofluorocarbon, a hydrochlorofluorocarbon, a chloroolefin, a hydrochloroolefin, a chlorofluoroolefin or a hydrochlorofluoroolefin, a hydrochlorofluorocetone, a fluoroketone, a hydrofluorocetone, a hydrochloroketone or a chloroketone. Preferably, the halogenated compound is a hydrochlorofluoroolefin, a hydrofluoroolefin or a fluoroketone.
    According to one embodiment, the halogenated compound is a fluorinated compound, which is preferably chosen from fluoroketones, fluoethers, fluonitriles, fluorinated peroxides, fluoroamides and fluoro ether oxides.
    Decafluoro-2-methylbutan-3-one is a preferred halogenated compound.
    It is preferably desired that the gas according to the invention does not undergo condensation for the entire range of projected use temperature. It is also desired to use this gas at a sufficiently high pressure, in principle greater than 105 Pa. Under these conditions, the use of a diluent makes it possible to avoid reaching the saturation vapor pressure of HFO-1336 or the other halogenated compounds that may be present throughout the projected range of use temperatures.
    Thus, a diluent is generally a compound having a boiling point lower than that of HFO-1336 and also having a lower electrical rigidity (at a reference temperature of, for example, 20 ° C).
    The absolute operating pressure of the gas according to the invention is preferably 1 to 1.5 bar in medium voltage devices, and 4 to 7 bar in high voltage devices.
    The terms "medium voltage" and "high voltage" are used herein in their usual acceptance that the term "medium voltage" refers to a voltage that is greater than 1000 volts AC and 1500 volts DC but that does not does not exceed 52000 volts AC and 75000 volts DC, while the term "high voltage" means a voltage that is strictly greater than 52000 volts AC and 75000 volts DC.
    In order to maximize the amount of HFO-1336 and other possible halogenated compounds, the following formula can be used:
    In this formula, Ptot represents the operating pressure of the gas according to the invention, P represents the partial pressure of HFO-1336 and other halogenated compounds and PVSi represents the saturated vapor pressure of HFO-1336 and other halogenated compounds. . The pressures are given at the filling temperature, in general about 20 ° C.
    The molar percentage of each compound is then approximately given by Mi = (Pi / Ptot) × 100.
    It should be noted, however, that in some cases a small amount of liquid may be accepted at low temperatures, which may allow the use of HFO-1336 or other halogenated compounds in amounts slightly higher than those defined above.
    In general, the gas according to the invention can be used in a temperature range whose lower limit is: -30 to -25 ° C; or from -25 to -20 ° C; or from -20 to -15 ° C; or from -15 to -10 ° C; or from -10 to -5 ° C; or from -5 to 0 ° C; or from 0 to 5 ° C; or from 5 to 10 ° C; or 10 to 15 ° C; or 15 to 20 ° C.
    Embodiments in which a diluent gas is present generally permit work in a temperature range whose lower limit is lower than in embodiments in which no diluent gas is present.
    Thus, when the gas consists essentially of, or consists of, HFO-1336 (or a mixture of HFO-1336), the lower limit of the temperature range is preferably greater than or equal to 0 ° C, or 1 ° C, or at 3 ° C, or at 4 ° C, or at 5 ° C, or at 6 ° C, or at 7 ° C, or at 8 ° C, or at 9 ° C, or at 10 ° C, or at 11 ° C, or at 12 ° C.
    When the gas consists essentially of, or consists of, HFO-1336yf, the lower limit of the temperature range is preferably greater than or equal to 0 ° C, or 1 ° C, or 2 ° C, or 3 ° C. ° C, or at 4 ° C, or at 5 ° C.
    When the gas consists essentially of, or consists of, HFO-E-1336mzz, the lower limit of the temperature range is preferably greater than or equal to 7 ° C, or 8 ° C, or 9 ° C, or at 10 ° C, or at 11 ° C, or at 12 ° C.
    Preferably, the gas according to the invention has a GWP of less than or equal to 20, more particularly less than or equal to 15 or to 10, or to 7, or to 5, or to 4, or to 3.
    GWP is defined in relation to carbon dioxide and compared to a duration of 100 years, according to the method indicated in "The scientific assessment of ozone depletion, 2002, report of the World Meteorological Association's Global Ozone Research and Monitoring Project".
    The (molar) proportion of HFO-1336 in the gas may be, in certain embodiments, from 1 to 2%; or 2 to 3%; or 3-4%, or 4-5%; or from 5 to 6%; or 6-7%; or 7 to 8%; or from 8 to 9%; or from 9 to 10%; or from 10 to 12%; or from 12 to 14%; or from 14 to 16%; or from 16 to 18%; or 18 to 20%; or 20 to 22%; or 22 to 24%; or 24 to 26%; or from 26 to 28%; or from 28 to 30%; or from 30 to 35%; or 35 to 40%; or 40 to 45%; or 45 to 50%; or 50 to 55%; or 55 to 60%; or 60 to 70%; or 70 to 80%; or 80 to 90%; or 90 to 100%.
    The partial pressure of HFO-1336 in the gas at 20 ° C may in some embodiments be 0.002 to 0.004 MPa; or from 0.004 to 0.006 MPa; or from 0.006 to 0.008 MPa; or from 0.008 to 0.01 MPa; or from 0.01 to 0.012 MPa; or from 0.012 to 0.014 MPa; or from 0.014 to 0.016 MPa; or from 0.016 to 0.018 MPa; or from 0.018 to 0.02 MPa; or from 0.02 to 0.022 MPa; or from 0.022 to 0.024 MPa; or from 0.024 to 0.026 MPa; or from 0.026 to 0.028 MPa; or from 0.028 to 0.03 MPa; or from 0.03 to 0.032 MPa; or from 0.032 to 0.034 MPa; or from 0.034 to 0.036 MPa; or from 0.036 to 0.038 MPa; or from 0.038 to 0.04 MPa; or from 0.04 to 0.045 MPa; or from 0.045 to 0.05 MPa; or from 0.05 to 0.055 MPa; or from 0.055 to 0.06 MPa; or from 0.06 to 0.07 MPa; or from 0.07 to 0.08 MPa; or from 0.08 to 0.09 MPa; or from 0.09 to 0.1 MPa; or from 0.1 to 0.11 MPa; or from 0.11 to 0.12 MPa; or from 0.12 to 0.13 MPa; or more than 0.13 MPa.
    It is desirable that the electrical appliances contain a relatively high amount of HFO-1336 (and possibly other halogenated and especially fluorinated gases), so that the dielectric, thermal and gas-off characteristics are sufficient over the normative or desired temperature range.
    To do this, it is advantageous to use a heating device in combination with an electrical appliance, said heating device being triggered according to the temperature of the gas mixture, its pressure or its density.
    For example, a heating resistor ideally placed at the lowest point of the apparatus (point of convergence of the condensed liquids on the various parts inside the apparatus, by gravitation) can be used.
    This ensures a gas pressure higher than the test pressure (gas pressure in the device during validation tests) defined normatively.
    For the same reasons, it is advantageous to provide thermal insulation of the walls of the apparatus and / or thermal insulation of the installation or the premises containing it and / or heating this installation or these premises.
    EXAMPLES
    The following examples illustrate the invention without limiting it.
    Example 1 - pure products
    Dielectric strength measurements are made at 20 ° C and 1.3 bar in a homogeneous field, with a distance between electrodes of 12 mm.
    The results are as follows, expressed in relative terms as a percentage of the dielectric strength of the SF6 reference gas: HFO-E-1336mzz: 127%; HFO-1336yf: 137%.
    Given their condensation temperature, the above two compounds can be used in pure form at minimum temperatures of 4 ° C for HFO-1336yf and 11 ° C for HFO-E-1336mzz, at a temperature of pressure of 1.14 bar. The values of dielectric strength (with a distance between electrodes of 12 mm) are then as follows, always with respect to SF6: - HFO-E-1336mzz at 11 ° C: 115%; HFO-1336yf at 4 ° C: 128%.
    EXAMPLE 2 - Mixtures with an Inert Compound
    Using the ideal gas model, 1 m3 of gas at 1.3 bar and at 20 ° C contains 53.33 moles, regardless of the gas used. This same amount of gas, in the same volume, gives a pressure of 1.14478 bar at -15 ° C.
    Always according to the theory of perfect gases, each gas is considered independent of other gases in the same volume. Therefore, since the saturation pressure of HFO-E-1336mzz at -15 ° C is 0.39 bar, the maximum number of moles in 1 m3 of gas is 16.35 moles, in order to avoid any condensation. at this temperature.
    Since the total pressure is considered to be equal to the sum of the partial pressures, the remaining pressure is 0.79 bar and the number of moles of equivalent of inert compound to be added is 37. The mixture HFO-E-1336mzz / inert comprises then a molar composition of 30.6% HFO-E-1336mzz and 69.4% of inert compound.
    The saturation partial pressure of HFO-1336yf at -15 ° C is 0.5151 bar. A calculation similar to the previous one shows that the maximum molar proportion of HFO-1336yf in an HFO-1336yf / inert mixture making it possible to avoid any condensation is about 45%.
    Since the dielectric strength of the air is 54% of that of SF6 at -15 ° C. and 1.14 bar, the dielectric strength of the above binary mixtures can be calculated under the same conditions: 30.6 mol. % HFO-E-1336m + + 69.4 mol%% air: 77%; 45 mol% HFO-1336yf + 55 mol% air: 86%.
    These results show that at the temperature of -15 ° C, a mixture of inert compound and HFO-1336 improves the dielectric performance of the inert compound. What is true for air is also true for CO2, whose dielectric strength is 51% of that of SF6 at -15 ° C and 1.14 bar.
    The contents of HFO-1336 indicated above were calculated according to the ideal gas theory.
    However, in reality, the maximum content of HFO-1336 at vapor saturation at -15 ° C and at 1.14 bar is higher than that predicted by ideal gas theory. Thus, the binary HFO-1336 / inert compositions of interest may have an HFO-1336 content higher than the values indicated above. Correlatively, the dielectric strength obtained may be greater than that calculated above.
    权利要求:
    Claims (16)
    [1" id="c-fr-0001]
    1. Use of a gas as an electrical isolation medium and / or electric arc extinguishing, wherein the gas comprises a hexafluorobutene.
    [2" id="c-fr-0002]
    The use according to claim 1, wherein the hexafluorobutene is 1,1,1,4,4,4-hexafluorobut-2-ene, preferably in trans form, or 2,3,3,4,4 , 4-hexafluorobut-1-ene.
    [3" id="c-fr-0003]
    3. Use according to one of claims 1 to 2, as an electrical isolation medium and / or extinction of electric arc in a medium voltage substation electrical apparatus.
    [4" id="c-fr-0004]
    4. Use according to one of claims 1 to 3, wherein the gas contains: - from 10 to 100 mol.% Tetra-1,1,1,4,4,4-hexafluorobut-2-ene, preferably from 20 to 75 mol% and more preferably 30 to 40 mol%; and / or from 25 to 100 mol% of 2,3,3,4,4,4-hexafluorobut-1-ene, preferably from 35 to 75 mol% and more particularly preferably from 45 to 55 mol. .%.
    [5" id="c-fr-0005]
    5. Use according to one of claims 1 to 4, wherein the gas also comprises a diluent, preferably selected from air, nitrogen, methane, oxygen, carbon dioxide or a mixture of those -this ; and preferably the gas is a binary mixture of a hexafluorobutene and a diluent.
    [6" id="c-fr-0006]
    6. Use according to one of claims 1 to 5, in a temperature range whose lower limit is -30 to 20 ° C, preferably -20 to 10 ° C, more preferably from -15 to 0 ° C.
    [7" id="c-fr-0007]
    7. Use according to one of claims 1 to 4, wherein the gas consists essentially and preferably consists of a hexafluorobutene or a mixture of hexafluorobutenes.
    [8" id="c-fr-0008]
    8. Use according to claim 7, in a temperature range whose lower limit is greater than or equal to 0 ° C, or 2 ° C, or 5 ° C, or 10 ° C.
    [9" id="c-fr-0009]
    9. Electrical apparatus comprising a sealed enclosure in which are electrical components as well as an electrical insulating gas and / or electric arc extinguishing, wherein the gas comprises a hexafluorobutene.
    [10" id="c-fr-0010]
    An electrical apparatus according to claim 9, wherein the hexafluorobutene is 1,1,1,4,4,4-hexafluorobut-2-ene, preferably in trans form, or 2,3,3,4, 4,4-hexafluorobut-1-ene.
    [11" id="c-fr-0011]
    An electrical apparatus according to claim 9 or 10, wherein the gas contains: from 10 to 100 mol% of trans-1,1,1,4,4,4-hexafluorobut-2-ene, preferably from at 75 mol% and more preferably from 30 to 40 mol%; and / or from 25 to 100 mol% of 2,3,3,4,4,4-hexafluorobut-1-ene, preferably from 35 to 75 mol% and more particularly preferably from 45 to 55 mol. .%.
    [12" id="c-fr-0012]
    Electrical apparatus according to one of claims 9 to 11, wherein the gas also comprises a diluent, preferably selected from air, nitrogen, methane, oxygen, carbon dioxide or a mixture of these; and preferably the gas is a binary mixture of a hexafluorobutene and a diluent.
    [13" id="c-fr-0013]
    13. The electrical apparatus according to one of claims 9 to 11, wherein the gas consists essentially and preferably consists of a hexafluorobutene or a mixture of hexafluorobutenes.
    [14" id="c-fr-0014]
    14. Electrical apparatus according to one of claims 9 to 13, wherein the electrical apparatus is a medium voltage electrical apparatus.
    [15" id="c-fr-0015]
    Electrical apparatus according to one of claims 9 to 14, wherein the gas is at a pressure at 20 ° C of 0.1 to 1 MPa, preferably 0.11 to 0.5 MPa, and more particularly of 0.12 to 0.15 MPa.
    [16" id="c-fr-0016]
    16. Electrical apparatus according to one of claims 9 to 15, which is selected from a gas-insulated electrical transformer, a gas-insulated line for the transport or distribution of electricity, and an electrical connection / disconnection apparatus.
    类似技术:
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    EP2715759A1|2014-04-09|Mixture of decafluoro-2-methylbutan-3-one and a vector gas as a medium for the electric insulation and/or quenching of high-voltage electric arcs
    WO2020002788A1|2020-01-02|Use of trifluoroethylene for insulating or extinguishing electric arcs
    EP3207554A1|2017-08-23|Electrical insulation or electric arc extinguishing gas
    WO2013004798A1|2013-01-10|Use of a mixture comprising a hydrofluoroolefin as a high-voltage arc-extinguishing and/or insulating gas and high-voltage electrical device comprising same
    WO2013110600A1|2013-08-01|Gaseous medium including at least one polyfluorinated oxyrane and a hydrofluoroolefin for electrical insulation and/or for extinguishing high-voltage electric arcs
    WO2013079569A1|2013-06-06|Polyfluorinated oxirane as an electrical insulation gas and/or a gas for extinguishing high-voltage electric arcs
    WO2013041697A1|2013-03-28|Mixture of hydrofluoroolefin and fluoroketone for use as an insulation and/or arc-extinguishing medium and a gas insulated high-voltage electrical device comprising same
    BE418768A|
    同族专利:
    公开号 | 公开日
    CN107924780B|2020-07-07|
    CN107924780A|2018-04-17|
    US10490372B2|2019-11-26|
    FR3040525B1|2017-08-11|
    JP2018534718A|2018-11-22|
    WO2017037360A1|2017-03-09|
    US20180247779A1|2018-08-30|
    JP6751757B2|2020-09-09|
    EP3341951A1|2018-07-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20070096051A1|2005-11-01|2007-05-03|Nappa Mario J|Fire extinguishing and fire suppression compositions comprising unsaturated fluorocarbons|
    FR2989084A1|2012-04-04|2013-10-11|Arkema France|COMPOSITIONS BASED ON 2,3,3,4,4,4-HEXAFLUOROBUT-1-ENE|
    US20140284516A1|2013-03-21|2014-09-25|Montfort A. Johnsen|Compositions For Totally Non-Flammable Aerosol Dusters|
    JP2002171624A|2000-11-30|2002-06-14|Mitsubishi Electric Corp|Gas-filled type switchgear|
    US7250583B2|2004-04-19|2007-07-31|Abb Technology Ag|Gas-insulated switchgear device|
    MY149324A|2007-06-12|2013-08-30|Du Pont|Azeotropic and azeotrope-like compositions of e-1,1,1,4,4,4-hexafluoro-2-butene|
    SG176702A1|2009-06-12|2012-01-30|Abb Technology Ag|Dielectric insulation medium|
    US20110144216A1|2009-12-16|2011-06-16|Honeywell International Inc.|Compositions and uses of cis-1,1,1,4,4,4-hexafluoro-2-butene|
    TW201139339A|2010-01-11|2011-11-16|Du Pont|Azeotropic and azeotrope-like compositions of Z-1,1,1,4,4,4-hexafluoro-2-butene, trans-1,2-dichloroethylene, and 1,1,1,3,3-pentafluorobutane|
    US8524955B2|2010-05-21|2013-09-03|Honeywell International Inc.|Process for the preparation of hexafluoro-2-butyne|
    US9145480B2|2010-10-28|2015-09-29|Honeywell International Inc.|Mixtures containing 1,1,1,3,3,3-hexafluorobutene and 1-chloro-3,3,3-trifluoropropene|
    FR2968009B1|2010-11-25|2012-11-16|Arkema France|REFRIGERANT FLUIDS CONTAINING -1,1,1,4,4,4-HEXAFLUOROBUT-2-ENE|
    US20150191576A1|2012-08-01|2015-07-09|E I Du Pont De Nemours And Company|Azeotropic and azeotrope-like compositions of e-1,3,4,4,4-pentafluoro-3-trifluoromethyl-1-butene and z-1,1,1,4,4,4-hexafluoro-2-butene and uses thereof|
    TW201414823A|2012-09-19|2014-04-16|Du Pont|Compositions comprising Z-1,1,1,4,4,4-hexafluoro-2-butene and 2,2-dichloro-1,1,1-trifluoroethane and methods of use thereof|
    DE102014220985A1|2014-07-03|2016-01-07|Siemens Aktiengesellschaft|Apparatus and method for using 1,1,1,4,4,4-hexafluoro-2-butene as a gaseous, electrically insulating and / or arc-extinguishing medium|FR3079359B1|2018-03-22|2020-10-09|Arkema France|USE OF 1-CHLORO-2,3,3,3-TETRAFLUOROPROPENE FOR INSULATING OR EXTINGUISHING ELECTRIC ARCS|
    FR3082993B1|2018-06-25|2020-05-29|Arkema France|USE OF TRIFLUOROETHYLENE FOR THE INSULATION OR EXTINGUISHING OF ELECTRIC ARCS|
    ES2767732A1|2018-12-18|2020-06-18|Ormazabal Corporate Tech A I E|Low environmental impact electrical insulation system for medium and high voltage electrical switchgear |
    ES2781127A1|2019-02-27|2020-08-28|Ormazabal Corporate Tech A I E|Low environmental impact electrical insulation system for medium and high voltage electrical switchgear |
    WO2020254004A1|2019-06-21|2020-12-24|Abb Power Grids Switzerland Ag|Dielectric-insulation or arc-extinction fluid|
    CN111211515A|2020-01-10|2020-05-29|广东电网有限责任公司电力科学研究院|Arc extinguishing and/or insulating electrical equipment|
    CN112760081B|2021-02-09|2022-01-14|浙江大学|Mixed working medium and application thereof|
    法律状态:
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    2018-07-12| PLFP| Fee payment|Year of fee payment: 4 |
    2020-07-15| PLFP| Fee payment|Year of fee payment: 6 |
    2021-07-14| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1557996A|FR3040525B1|2015-08-28|2015-08-28|USE OF HEXAFLUOROBUTENES FOR THE INSULATION OR EXTINCTION OF ELECTRIC ARCS|FR1557996A| FR3040525B1|2015-08-28|2015-08-28|USE OF HEXAFLUOROBUTENES FOR THE INSULATION OR EXTINCTION OF ELECTRIC ARCS|
    PCT/FR2016/052081| WO2017037360A1|2015-08-28|2016-08-16|Use of hexafluorobutenes for isolating or extinguishing electric arcs|
    US15/755,635| US10490372B2|2015-08-28|2016-08-16|Use of hexafluorobutenes for isolating or extinguishing electric arcs|
    EP16763913.7A| EP3341951A1|2015-08-28|2016-08-16|Use of hexafluorobutenes for isolating or extinguishing electric arcs|
    JP2018511072A| JP6751757B2|2015-08-28|2016-08-16|Use of hexafluorobutene to insulate or extinguish electric arcs|
    CN201680050434.XA| CN107924780B|2015-08-28|2016-08-16|Use of hexafluorobutene for isolating or extinguishing electric arcs|
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