EP4038646A1 - Augmentation de la puissance d'un transformateur - Google Patents
Augmentation de la puissance d'un transformateurInfo
- Publication number
- EP4038646A1 EP4038646A1 EP20820486.7A EP20820486A EP4038646A1 EP 4038646 A1 EP4038646 A1 EP 4038646A1 EP 20820486 A EP20820486 A EP 20820486A EP 4038646 A1 EP4038646 A1 EP 4038646A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- carbon atoms
- dielectric fluid
- transformer
- use according
- chosen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000012530 fluid Substances 0.000 claims abstract description 67
- 125000003118 aryl group Chemical group 0.000 claims abstract description 8
- 125000006850 spacer group Chemical group 0.000 claims abstract description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 27
- -1 hydrocarbon radicals Chemical class 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 17
- PKQYSCBUFZOAPE-UHFFFAOYSA-N 1,2-dibenzyl-3-methylbenzene Chemical compound C=1C=CC=CC=1CC=1C(C)=CC=CC=1CC1=CC=CC=C1 PKQYSCBUFZOAPE-UHFFFAOYSA-N 0.000 claims description 13
- 239000004215 Carbon black (E152) Substances 0.000 claims description 11
- 229930195733 hydrocarbon Natural products 0.000 claims description 11
- 239000002480 mineral oil Substances 0.000 claims description 10
- QWUWMCYKGHVNAV-UHFFFAOYSA-N 1,2-dihydrostilbene Chemical compound C=1C=CC=CC=1CCC1=CC=CC=C1 QWUWMCYKGHVNAV-UHFFFAOYSA-N 0.000 claims description 9
- 150000002148 esters Chemical class 0.000 claims description 9
- 229920006395 saturated elastomer Polymers 0.000 claims description 8
- 238000000354 decomposition reaction Methods 0.000 claims description 7
- 239000003112 inhibitor Substances 0.000 claims description 7
- 239000000654 additive Substances 0.000 claims description 6
- 239000003963 antioxidant agent Substances 0.000 claims description 5
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 5
- 239000008158 vegetable oil Substances 0.000 claims description 5
- 239000004593 Epoxy Substances 0.000 claims description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 4
- 150000001718 carbodiimides Chemical class 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- FQYUMYWMJTYZTK-UHFFFAOYSA-N Phenyl glycidyl ether Chemical class C1OC1COC1=CC=CC=C1 FQYUMYWMJTYZTK-UHFFFAOYSA-N 0.000 claims description 2
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 claims description 2
- 150000004056 anthraquinones Chemical class 0.000 claims description 2
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 150000002170 ethers Chemical class 0.000 claims description 2
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- WCYWZMWISLQXQU-UHFFFAOYSA-N methyl Chemical compound [CH3] WCYWZMWISLQXQU-UHFFFAOYSA-N 0.000 claims description 2
- 229920003986 novolac Polymers 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- HYYPKCMPDGCDHE-UHFFFAOYSA-N 4-(7-oxabicyclo[4.1.0]heptan-4-ylmethyl)-7-oxabicyclo[4.1.0]heptane Chemical compound C1CC2OC2CC1CC1CC2OC2CC1 HYYPKCMPDGCDHE-UHFFFAOYSA-N 0.000 claims 1
- 150000007942 carboxylates Chemical class 0.000 claims 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 6
- 235000019198 oils Nutrition 0.000 description 6
- 150000004996 alkyl benzenes Chemical class 0.000 description 5
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 4
- 235000006708 antioxidants Nutrition 0.000 description 4
- 235000010446 mineral oil Nutrition 0.000 description 4
- 229920000058 polyacrylate Polymers 0.000 description 3
- GNPWYHFXSMINJQ-UHFFFAOYSA-N 1,2-dimethyl-3-(1-phenylethyl)benzene Chemical compound C=1C=CC(C)=C(C)C=1C(C)C1=CC=CC=C1 GNPWYHFXSMINJQ-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 235000010323 ascorbic acid Nutrition 0.000 description 2
- 229960005070 ascorbic acid Drugs 0.000 description 2
- 239000011668 ascorbic acid Substances 0.000 description 2
- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical compound C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 description 2
- UZILCZKGXMQEQR-UHFFFAOYSA-N decyl-Benzene Chemical compound CCCCCCCCCCC1=CC=CC=C1 UZILCZKGXMQEQR-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002530 phenolic antioxidant Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- KRLHYNPADOCLAJ-UHFFFAOYSA-N undecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCOC(=O)C(C)=C KRLHYNPADOCLAJ-UHFFFAOYSA-N 0.000 description 2
- MHCVCKDNQYMGEX-UHFFFAOYSA-N 1,1'-biphenyl;phenoxybenzene Chemical compound C1=CC=CC=C1C1=CC=CC=C1.C=1C=CC=CC=1OC1=CC=CC=C1 MHCVCKDNQYMGEX-UHFFFAOYSA-N 0.000 description 1
- QTKIQLNGOKOPOE-UHFFFAOYSA-N 1,1'-biphenyl;propane Chemical compound CCC.C1=CC=CC=C1C1=CC=CC=C1 QTKIQLNGOKOPOE-UHFFFAOYSA-N 0.000 description 1
- HQCUSXPGMKCZGE-UHFFFAOYSA-N 1-(1-phenylethyl)-1,2,3,4-tetrahydronaphthalene Chemical compound C1CCC2=CC=CC=C2C1C(C)C1=CC=CC=C1 HQCUSXPGMKCZGE-UHFFFAOYSA-N 0.000 description 1
- RMSGQZDGSZOJMU-UHFFFAOYSA-N 1-butyl-2-phenylbenzene Chemical group CCCCC1=CC=CC=C1C1=CC=CC=C1 RMSGQZDGSZOJMU-UHFFFAOYSA-N 0.000 description 1
- SDRZFSPCVYEJTP-UHFFFAOYSA-N 1-ethenylcyclohexene Chemical compound C=CC1=CCCCC1 SDRZFSPCVYEJTP-UHFFFAOYSA-N 0.000 description 1
- FDLFMPKQBNPIER-UHFFFAOYSA-N 1-methyl-3-(3-methylphenoxy)benzene Chemical compound CC1=CC=CC(OC=2C=C(C)C=CC=2)=C1 FDLFMPKQBNPIER-UHFFFAOYSA-N 0.000 description 1
- VETPHHXZEJAYOB-UHFFFAOYSA-N 1-n,4-n-dinaphthalen-2-ylbenzene-1,4-diamine Chemical compound C1=CC=CC2=CC(NC=3C=CC(NC=4C=C5C=CC=CC5=CC=4)=CC=3)=CC=C21 VETPHHXZEJAYOB-UHFFFAOYSA-N 0.000 description 1
- HKTCLPBBJDIBGF-UHFFFAOYSA-N 1-phenyl-2-propan-2-ylbenzene Chemical compound CC(C)C1=CC=CC=C1C1=CC=CC=C1 HKTCLPBBJDIBGF-UHFFFAOYSA-N 0.000 description 1
- BSZXAFXFTLXUFV-UHFFFAOYSA-N 1-phenylethylbenzene Chemical compound C=1C=CC=CC=1C(C)C1=CC=CC=C1 BSZXAFXFTLXUFV-UHFFFAOYSA-N 0.000 description 1
- SPSPIUSUWPLVKD-UHFFFAOYSA-N 2,3-dibutyl-6-methylphenol Chemical compound CCCCC1=CC=C(C)C(O)=C1CCCC SPSPIUSUWPLVKD-UHFFFAOYSA-N 0.000 description 1
- LCFVJGUPQDGYKZ-UHFFFAOYSA-N Bisphenol A diglycidyl ether Chemical compound C=1C=C(OCC2OC2)C=CC=1C(C)(C)C(C=C1)=CC=C1OCC1CO1 LCFVJGUPQDGYKZ-UHFFFAOYSA-N 0.000 description 1
- VBHXRESZQYZIHD-UHFFFAOYSA-N C1CCC2C(C1)O2.C1CC2C(O2)CC1CC(=O)O Chemical compound C1CCC2C(C1)O2.C1CC2C(O2)CC1CC(=O)O VBHXRESZQYZIHD-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000408529 Libra Species 0.000 description 1
- 229920002319 Poly(methyl acrylate) Polymers 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 150000001556 benzimidazoles Chemical class 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- CZBZUDVBLSSABA-UHFFFAOYSA-N butylated hydroxyanisole Chemical compound COC1=CC=C(O)C(C(C)(C)C)=C1.COC1=CC=C(O)C=C1C(C)(C)C CZBZUDVBLSSABA-UHFFFAOYSA-N 0.000 description 1
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- KWKXNDCHNDYVRT-UHFFFAOYSA-N dodecylbenzene Chemical compound CCCCCCCCCCCCC1=CC=CC=C1 KWKXNDCHNDYVRT-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 235000020688 green tea extract Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- PAIQEFSJYGYULU-UHFFFAOYSA-N heptadecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCCCCOC(=O)C(C)=C PAIQEFSJYGYULU-UHFFFAOYSA-N 0.000 description 1
- KVILQFSLJDTWPU-UHFFFAOYSA-N heptadecyl prop-2-enoate Chemical compound CCCCCCCCCCCCCCCCCOC(=O)C=C KVILQFSLJDTWPU-UHFFFAOYSA-N 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- SCFQUKBBGYTJNC-UHFFFAOYSA-N heptyl prop-2-enoate Chemical compound CCCCCCCOC(=O)C=C SCFQUKBBGYTJNC-UHFFFAOYSA-N 0.000 description 1
- 150000002460 imidazoles Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- CMESPBFFDMPSIY-UHFFFAOYSA-N n,n'-diphenylmethanediimine Chemical compound C1=CC=CC=C1N=C=NC1=CC=CC=C1 CMESPBFFDMPSIY-UHFFFAOYSA-N 0.000 description 1
- LKEDKQWWISEKSW-UHFFFAOYSA-N nonyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCOC(=O)C(C)=C LKEDKQWWISEKSW-UHFFFAOYSA-N 0.000 description 1
- MDYPDLBFDATSCF-UHFFFAOYSA-N nonyl prop-2-enoate Chemical compound CCCCCCCCCOC(=O)C=C MDYPDLBFDATSCF-UHFFFAOYSA-N 0.000 description 1
- WSVDSBZMYJJMSB-UHFFFAOYSA-N octadecylbenzene Chemical compound CCCCCCCCCCCCCCCCCCC1=CC=CC=C1 WSVDSBZMYJJMSB-UHFFFAOYSA-N 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- YOTGRUGZMVCBLS-UHFFFAOYSA-N pentadecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCCOC(=O)C(C)=C YOTGRUGZMVCBLS-UHFFFAOYSA-N 0.000 description 1
- GOZDOXXUTWHSKU-UHFFFAOYSA-N pentadecyl prop-2-enoate Chemical compound CCCCCCCCCCCCCCCOC(=O)C=C GOZDOXXUTWHSKU-UHFFFAOYSA-N 0.000 description 1
- 229920001603 poly (alkyl acrylates) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 229940042055 systemic antimycotics triazole derivative Drugs 0.000 description 1
- 229930003799 tocopherol Natural products 0.000 description 1
- 239000011732 tocopherol Substances 0.000 description 1
- 235000019149 tocopherols Nutrition 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- XOALFFJGWSCQEO-UHFFFAOYSA-N tridecyl prop-2-enoate Chemical compound CCCCCCCCCCCCCOC(=O)C=C XOALFFJGWSCQEO-UHFFFAOYSA-N 0.000 description 1
- RRLMGCBZYFFRED-UHFFFAOYSA-N undecyl prop-2-enoate Chemical compound CCCCCCCCCCCOC(=O)C=C RRLMGCBZYFFRED-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- QUEDXNHFTDJVIY-UHFFFAOYSA-N γ-tocopherol Chemical class OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1 QUEDXNHFTDJVIY-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/20—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
- H01B3/22—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils hydrocarbons
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/125—Cooling by synthetic insulating and incombustible liquid
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/10—Liquid materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/105—Cooling by special liquid or by liquid of particular composition
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
Definitions
- dielectric oils also called dielectric fluids
- transformers The market for dielectric oils, also called dielectric fluids, for transformers is growing continuously. This market is linked to an increasing demand for energy in industrialized countries due in particular to the electrification of countries experiencing economic growth.
- transformers currently in service are often used at load rates greater than 95%.
- the current network now has a very large number of optimized transformers, that is to say transformers whose losses are minimized.
- transformers whose losses are minimized are the transformers whose losses are minimized.
- the increasing demands for electricity are causing problems on this current optimized network, which today is saturated or close to saturation.
- a third solution, already proposed by manufacturers of vegetable oils, is to use such vegetable oils known in particular for their high biodegradability.
- these oils often have viscosity problems, especially when cold, and insufficient dielectric characteristics, and very often very inferior to those of mineral oils.
- the thermal properties, and therefore the thermal exchanges are less good than those of mineral oils. It is therefore necessary to modify the internal structure of the transformers, in particular the widening of the oil circulation channels inside the windings. This design change makes it necessary, for the same power, to increase the size of the transformer, but also to use more materials and thus increase the manufacturing cost of transformers operating with these biodegradable oils.
- the present invention relates to the use, to increase the power of a transformer, of at least one dielectric fluid of general formula (1):
- a and B which are identical or different, represent, independently of one another, an aromatic ring, optionally substituted by one or more hydrocarbon radicals, saturated or partially or totally unsaturated, comprising from 1 to 20 carbon atoms, preferably of 1 to 18 carbon atoms, more preferably 1 to 12 carbon atoms, better still 1 to 10 carbon atoms, better still 1 to 6 carbon atoms, typically 1 to 3 carbon atoms,
- R and R ' are chosen independently of one another, from hydrogen and a hydrocarbon radical, saturated or partially or totally unsaturated, comprising from 1 to 6 carbon atoms, preferably from 1 to 3 carbon atoms,
- R represents a hydrocarbon radical, saturated or partially or totally unsaturated, comprising from 1 to 6 carbon atoms, preferably from 1 to 3 carbon atoms, m represents an integer between 1 and 4 limits inclusive, and n can be equal to 0 or represents an integer equal to 1, 2 or 3, preferably equal to 1 or 2, with the restriction that when n is equal to 0, B is substituted by one or more hydrocarbon radicals, as defined above.
- aromatic ring is meant the aromatic hydrocarbon mono-rings and aromatic hydrocarbon polycycles, comprising from 6 to 20 carbon atoms.
- polycycle is meant fused or condensed rings, at least one ring of which is aromatic, the other ring (s) possibly being partially or totally unsaturated.
- the dielectric fluid of formula (1) defined above is part of the family of alkylbenzenes, and preferably meets the specifications defined in standard IEC 60867, edition 2 of 1993.
- the groups (AX) can be identical or different.
- dielectric fluids of formula (1) defined above are known and available or else can be easily prepared from procedures known in the patent literature, scientific literature or on the Internet. Examples of dielectric fluids of formula (1) above are described in particular in patents or patent applications EP0444989, US5017733, EP2720232, US2009103239, US4618914, to name a few, by way of nonlimiting examples .
- n is different from 0 and B is an aromatic ring substituted by a hydrocarbon radical.
- said hydrocarbon radical is an alkyl radical comprising from 1 to 6 carbon atoms, preferably from 1 to 4 carbon atoms, and preferably the alkyl radical is the methyl radical.
- n is equal to 0 and the dielectric fluid of formula (1) is generally chosen from linear alkylbenzenes and alkylbenzenes branched, such as, for example and without limitation, alkylbenzenes in which the alkyl part comprises from 10 to 20 carbon atoms.
- alkylbenzenes include, still without limitation, decylbenzene, dodecylbenzene, octadecylbenzene, to name a few of them.
- dielectric fluids corresponding to the general formula (1) above can be used alone or as mixtures of two or more of them in all proportions.
- the use according to the present invention implements at least one dielectric fluid of formula (1) defined above, alone or as a mixture with one or more other dielectric fluids known to those skilled in the art, such as, for example, and without limitation, dielectric fluids chosen from mineral oils, vegetable oils, and natural or synthetic esters.
- the amount of dielectric fluid (s) according to general formula (1) relative to the totality of all dielectric fluids that can be used for the purposes of the present invention can vary widely. It is however preferred to use the dielectric fluids according to general formula (1) defined above in proportions of between 50% and 100% by weight, limits included, preferably between 70% and 100% by weight, limits included, with respect to all of the dielectric fluids that can be used for the purposes of the present invention.
- the dielectric fluid is chosen from benzyltoluene (BT), dibenzyltoluene (DBT), and their mixtures in all proportions.
- BT benzyltoluene
- DBT dibenzyltoluene
- the preferred BT / DBT mixtures are those comprising between 1% and 50%, limits included, by weight of benzyltoluene and more preferably between 15% and 30%, limits included, by weight of dibenzyltoluene relative to the total amount of benzyltoluene / dibenzyltoluene .
- the dielectric fluid is selected from dielectric fluids sold by Arkema under the trade names range Jarylec ®.
- dielectric fluids suitable for the needs of the present invention are, for example, those marketed by the company Yanta ⁇ Jinzheng, and in particular under the trade name SRS-401T, those marketed by the company Jinzhou Yongia, and in particular M / DBT, and those marketed by the company JX Nippon, in particular under the trade name SAS-60E.
- dielectric fluids suitable for the needs of the present invention there may be mentioned:
- DPE diphenylethane
- isomers in particular 1, 1 -DPE (CAS 612-00-0), 1, 2-DPE (CAS 103-29-7) and their mixtures (in particular CAS 38888-98) -1), such fluids are commercially available or described in the literature, for example in document EP0098677,
- PXE - phenylxylylethane
- PEPE - phenylethylphenylethane
- CAS 6196-94-7 - phenylethylphenylethane
- the dielectric fluid which can be used in the context of the present invention may further contain one or more additives well known to those skilled in the art of transformers, and for example chosen from antioxidants, passivators, point-lowerers. flow, decomposition inhibitors and mixtures thereof.
- a particularly preferred dielectric fluid comprises a decomposition inhibitor.
- antioxidants which can be advantageously used in the dielectric fluid, mention may be made, by way of nonlimiting examples, of phenolic antioxidants, such as for example dibutylhydroxytoluene, butylhydroxyanisole, tocopherols, as well as the acetates of these phenolic antioxidants; but also antioxidants of amine type, such as for example phenyl-a-naphthylamine, of diamine type, for example N, N'-di- (2-naphthyl) -para-phenylenediamine, but also ascorbic acid and its salts, esters of ascorbic acid, alone or as mixtures of two or more of them or with other components, such as for example green tea extracts, coffee extracts.
- phenolic antioxidants such as for example dibutylhydroxytoluene, butylhydroxyanisole, tocopherols, as well as the acetates of these phenolic antioxidants
- antioxidants of amine type such as for example phen
- the passivators which can be used as additives in the dielectric fluid which can be used in the context of the present invention are of any type known to those skilled in the art and are advantageously chosen from triazole derivatives, benzimidazoles, imidazoles, thiazole, benzothiazole.
- triazole derivatives benzimidazoles, imidazoles, thiazole, benzothiazole.
- dioctylaminomethyl-2,3-benzotriazole and 2-dodécyldithioimidazole can be mentioned.
- pour point depressants which may be present in the dielectric fluid which can be used in the context of the present invention
- fatty acid esters of sucrose acrylic polymers such as poly (alkyl methacrylate) or even poly (alkyl acrylate).
- acrylic polymers are those whose molecular weight is between 50,000 g mol -1 and 500,000 g mol 1 .
- acrylic polymers include polymers which may contain linear alkyl groups comprising from 1 to 20 carbon atoms.
- pour point depressor is commercially available from Sanyo Chemical Industries, Ltd. under the trade name Aclube.
- the dielectric fluid which can be used in the context of the present invention comprises at least one decomposition inhibitor, as an additive.
- the decomposition inhibitor can be of any type well known to those skilled in the art and in particular can be chosen from carbodi-imide derivatives such as diphenyl carbodi-imide, di-tolylcarbodi-imide, bis (isopropylphenyl).
- carbodi-imide bis (butylphenyl) carbodi-imide; but also from phenylglycidyl ethers, or esters, alkylglycidyl ethers, or esters, 3,4-epoxycyclohexylmethyl carboxylate- (3,4-epoxycyclohexane), compounds of the anthraquinone family, such as for example b-methylanthraquinone marketed under the name “BMAQ”, epoxy derivatives such as vinylcyclohexene diepoxides, 3,4-epoxy-6-methylcyclohexylmethyl- (3,4-epoxy-6-methylhexane) carboxylate, phenol novolak type epoxy resins, bisphenol A epoxy diglycidyl ether, such as DGEBA or CEL 2021 P, available in particular from the company WHYTE CHEMICAL.
- BMAQ b-methylanthraquinone
- epoxy derivatives such as vinylcyclohe
- the dielectric fluid which can be used in the context of the present invention comprises at least one decomposition inhibitor.
- the content by weight of the additive, or of the additives optionally present (s) in the dielectric fluid which can be used in the context of the present invention can range from 0.0001% to 2% by weight, preferably from 0.001% at 1% by weight, more preferably from 0.01% to 0.5% by weight, limits included, relative to the total weight of the mixture.
- a “transformer” can be any type of electrical transformer known to those skilled in the art, and in particular any type of so-called distribution or power or even traction transformer.
- the present invention thus makes it possible, for a given transformer, to be able to increase its power by a factor generally between 2% and 15%, without modifying either its technology or its size, this increase being obtained by using of at least one dielectric fluid according to the general formula (1) defined above, or alternatively by replacing all or part of the dielectric fluid contained in a transformer by at least one dielectric fluid according to the general formula (1) defined above .
- the increase in power, or power gain, indicated above can be estimated on the basis of the heat transfer parameters. Without wishing to be bound by theory, a greater load on a transformer power results in an increase in the temperature of said transformer and of the dielectric fluid it contains. However, certain dielectric fluids only support temperature variations moderately or even are poor heat exchanger fluids, so that it is not desirable to increase their power without risking a significant reduction in the duration of the heating. transformer life.
- the present invention also relates to a transformer, preferably a distribution or power transformer, containing at least one dielectric fluid of formula (1) as defined above.
- the present invention relates to a transformer containing at least one dielectric fluid of formula (1) as defined above, alone or as a mixture with one or more other dielectric fluids known to those skilled in the art, such as for example , and in a nonlimiting manner, dielectric fluids chosen from mineral oils, vegetable oils and natural or synthetic esters.
- the present invention relates to a transformer in which the dielectric fluid comprises at least one dielectric fluid of general formula (1) defined above, optionally with another dielectric fluid chosen from mineral oils, oils. plants, and natural or synthetic esters.
- said transformer comprises between 50% and 100% by weight, limits included, preferably between 70% and 100% by weight, limits included, with respect to all of the set of dielectric fluids of at least one dielectric fluid corresponding to general formula (1) as defined above.
- the present invention relates to a transformer comprising a dielectric fluid chosen from benzyltoluene (BT), dibenzyltoluene (DBT), and their mixtures in all proportions.
- the transformer according to the invention contains an amount of chlorinated compound (s) of less than 100 ppm by weight, preferably less than 50 ppm by weight relative to the total weight of the composition. More preferably, the transformer according to the invention does not contain chlorinated compound (s).
- Jarylec ® is a BT / DBT mixture.
- a temperature measurement of the dielectric fluid contained in the transformer is carried out at the top of the phases with respect to the load of the transformer.
- the charging time to reach the temperature is 5 hours. All the conditions are the same on the 2 tests with mineral oil and Jarylec ® marketed by the company Arkema, and in particular the condition on the outside temperature which is the ambient temperature.
- the applied voltage corresponds to the percentage of the nominal impedance of the short circuit given by the manufacturer of the transformer. This impedance corresponds to 3.63% of the nominal voltage of 15 kV. Thus, at 100% load, the applied voltage is approximately (15000 x 0.0363) V.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Organic Insulating Materials (AREA)
- Lubricants (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1910864A FR3101477B1 (fr) | 2019-10-01 | 2019-10-01 | Augmentation de la puissance d’un transformateur |
| PCT/FR2020/051620 WO2021064305A1 (fr) | 2019-10-01 | 2020-09-18 | Augmentation de la puissance d'un transformateur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4038646A1 true EP4038646A1 (fr) | 2022-08-10 |
Family
ID=69630373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20820486.7A Withdrawn EP4038646A1 (fr) | 2019-10-01 | 2020-09-18 | Augmentation de la puissance d'un transformateur |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20220348812A1 (fr) |
| EP (1) | EP4038646A1 (fr) |
| CN (1) | CN114514590A (fr) |
| FR (1) | FR3101477B1 (fr) |
| WO (1) | WO2021064305A1 (fr) |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2672448A (en) * | 1952-09-27 | 1954-03-16 | California Research Corp | Transformer oil containing a tertiary alkyl phenol antioxidant and a dihydroxy anthraquinone as a synergist for the antioxidant |
| US4474989A (en) | 1982-07-01 | 1984-10-02 | Gulf Research & Development Company | Process for preparing dinitrobenzophenones |
| CA1211761A (fr) * | 1982-12-25 | 1986-09-23 | Atsushi Sato | Substance dielectrique, et appareils electriques a bain d'huile qui la renferment |
| JPS60189108A (ja) | 1984-03-08 | 1985-09-26 | 日本石油化学株式会社 | 電気絶縁油 |
| JPH088010B2 (ja) | 1986-09-04 | 1996-01-29 | 日本石油化学株式会社 | 電気絶縁油組成物 |
| SU1498746A1 (ru) * | 1987-09-07 | 1989-08-07 | Предприятие П/Я А-7411 | Способ получени моно- и дибензилтолуолов |
| DE3836780A1 (de) * | 1988-10-28 | 1990-05-03 | Bayer Ag | Verfahren zur herstellung von gegebenenfalls substituierten benzylbenzolen |
| US5192463A (en) * | 1989-02-20 | 1993-03-09 | Atochem | Low temperature, polyphenylmethane-based dielectric compositions |
| FR2658812B1 (fr) * | 1990-02-27 | 1992-05-15 | Atochem | Compositions dielectriques a base de benzyltoluene et de (methylbenzyl) xylene. |
| NO177820C (no) * | 1991-11-26 | 1995-11-29 | Atochem Elf Sa | Blanding på basis av benzyltoluener og benzylxylener og deres anvendelse som dielektrika |
| FR2794567A1 (fr) * | 1999-06-07 | 2000-12-08 | Atofina | Composition dielectrique ayant une absorption de gaz amelioree |
| EP2210259A1 (fr) | 2007-10-18 | 2010-07-28 | Cooper Technologies Company | Fluide diélectrique pour une performance de condensateur améliorée |
| JP5814637B2 (ja) | 2011-06-07 | 2015-11-17 | Jx日鉱日石エネルギー株式会社 | 低温特性に優れた電気絶縁油組成物 |
| FR3008708B1 (fr) * | 2013-07-19 | 2016-09-23 | Arkema France | Composition de fluide dielectrique ou caloporteur |
| FR3078711B1 (fr) * | 2018-03-08 | 2020-07-31 | Arkema France | Utilisation d'un melange en tant que fluide dielectrique |
-
2019
- 2019-10-01 FR FR1910864A patent/FR3101477B1/fr not_active Expired - Fee Related
-
2020
- 2020-09-18 US US17/765,050 patent/US20220348812A1/en not_active Abandoned
- 2020-09-18 CN CN202080070204.6A patent/CN114514590A/zh active Pending
- 2020-09-18 WO PCT/FR2020/051620 patent/WO2021064305A1/fr not_active Ceased
- 2020-09-18 EP EP20820486.7A patent/EP4038646A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021064305A1 (fr) | 2021-04-08 |
| FR3101477B1 (fr) | 2021-09-24 |
| CN114514590A (zh) | 2022-05-17 |
| FR3101477A1 (fr) | 2021-04-02 |
| US20220348812A1 (en) | 2022-11-03 |
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