EP3729470A1 - Isolation, elektrische maschine und verfahren zur herstellung der isolation - Google Patents
Isolation, elektrische maschine und verfahren zur herstellung der isolationInfo
- Publication number
- EP3729470A1 EP3729470A1 EP19706910.7A EP19706910A EP3729470A1 EP 3729470 A1 EP3729470 A1 EP 3729470A1 EP 19706910 A EP19706910 A EP 19706910A EP 3729470 A1 EP3729470 A1 EP 3729470A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insulation
- layer
- resin
- paint
- spraying
- 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.)
- Pending
Links
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- 238000000889 atomisation Methods 0.000 description 1
- IVRMZWNICZWHMI-UHFFFAOYSA-N azide group Chemical group [N-]=[N+]=[N-] IVRMZWNICZWHMI-UHFFFAOYSA-N 0.000 description 1
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- DJUWPHRCMMMSCV-UHFFFAOYSA-N bis(7-oxabicyclo[4.1.0]heptan-4-ylmethyl) hexanedioate Chemical compound C1CC2OC2CC1COC(=O)CCCCC(=O)OCC1CC2OC2CC1 DJUWPHRCMMMSCV-UHFFFAOYSA-N 0.000 description 1
- XFUOBHWPTSIEOV-UHFFFAOYSA-N bis(oxiran-2-ylmethyl) cyclohexane-1,2-dicarboxylate Chemical compound C1CCCC(C(=O)OCC2OC2)C1C(=O)OCC1CO1 XFUOBHWPTSIEOV-UHFFFAOYSA-N 0.000 description 1
- WKDNYTOXBCRNPV-UHFFFAOYSA-N bpda Chemical compound C1=C2C(=O)OC(=O)C2=CC(C=2C=C3C(=O)OC(C3=CC=2)=O)=C1 WKDNYTOXBCRNPV-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000011353 cycloaliphatic epoxy resin Substances 0.000 description 1
- IFDVQVHZEKPUSC-UHFFFAOYSA-N cyclohex-3-ene-1,2-dicarboxylic acid Chemical compound OC(=O)C1CCC=CC1C(O)=O IFDVQVHZEKPUSC-UHFFFAOYSA-N 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 125000003438 dodecyl group Chemical group [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])* 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007590 electrostatic spraying Methods 0.000 description 1
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
- 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 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- PQPVPZTVJLXQAS-UHFFFAOYSA-N hydroxy-methyl-phenylsilicon Chemical class C[Si](O)C1=CC=CC=C1 PQPVPZTVJLXQAS-UHFFFAOYSA-N 0.000 description 1
- 150000002460 imidazoles Chemical class 0.000 description 1
- 150000004693 imidazolium salts Chemical class 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- MGFYSGNNHQQTJW-UHFFFAOYSA-N iodonium Chemical compound [IH2+] MGFYSGNNHQQTJW-UHFFFAOYSA-N 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 125000000466 oxiranyl group Chemical group 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-O phosphonium Chemical compound [PH4+] XYFCBTPGUUZFHI-UHFFFAOYSA-O 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000003217 pyrazoles Chemical class 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 235000019515 salmon Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 125000006158 tetracarboxylic acid group Chemical group 0.000 description 1
- RAOIDOHSFRTOEL-UHFFFAOYSA-N tetrahydrothiophene Chemical compound C1CCSC1 RAOIDOHSFRTOEL-UHFFFAOYSA-N 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- 125000005425 toluyl group Chemical group 0.000 description 1
- 231100000027 toxicology Toxicity 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 150000003738 xylenes Chemical class 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/40—Windings characterised by the shape, form or construction of the insulation for high voltage, e.g. affording protection against corona discharges
-
- 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
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/40—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes epoxy resins
-
- 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
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/46—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes silicones
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/10—Applying solid insulation to windings, stators or rotors, e.g. applying insulating tapes
- H02K15/105—Applying solid insulation to windings, stators or rotors, e.g. applying insulating tapes to the windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/30—Windings characterised by the insulating material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
Definitions
- the invention discloses for the first time a sprayable formulation for producing a multilayer insulation for an electric machine, in particular a rotating electrical machine of the high voltage or medium voltage range such as a generator, transformer, the higher rated voltages at operating voltages, that is, for example, from 1 kV or more are exposed. Moreover, the invention relates to an electrical machine comprising such insulation, finally, the invention relates to a method for producing the multilayer insulation.
- a high-performance generator such as a Turbogenera gate, in particular has a stator or stator with a stator core and a plurality of generator grooves in which the generator insulation system, usually in the form of a winding, is located.
- the main insulation of generators based on epoxide resin-impregnated mica tapes, provides shielding of the high-voltage conductors, in particular Kupferlei ter against the grounded stator. It has a high partial discharge insertion voltage, which allows it to permanently degrade, for example, 3.5kV per millimeter.
- the conductors in particular copper conductors, ie the electrical coil, which are pressed together to form so-called verröbelten rods, if appropriate, applied to the rods mecanicalsteue- tion, IPS, the main insulation and then the outside corona shielding, AGS and possibly an end corona protection.
- End corona protection applied to control the electrical potential, for example, to raise the potential across the EGS length.
- All these components of the Isolationsssys system, so IPS, main insulation, AGS and EGS, are so far usually wound as bands on the sub-conductor, where parts of it, such as the EGS, are applied completely by hand. Also, the other parts can not be applied automatically, because either the number of automation does not make the Sieren economic and / or the risk of trapped air in the folds does not guarantee the quality that is required in the winding.
- the tapes that are wound, as a rule, consist of glued mica platelets, which in the insulation are used to extend the erosion path in the insulation system, ie the direct path from the high voltage side, so the Lei tern, towards the grounded laminated core, resulting in a significantly longer life of an insulation system results.
- Object of the present invention is therefore to overcome the Häei le of the prior art, in particular to overcome the disadvantages of a winding tape insulation and the cost of producing an insulation system for a ro animal electrical machine of the high voltage or medium voltage range such as a generator, Trans formator, a bushing and / or a cable, the higher rated voltages at operating voltages, so example, from 1 kV or more, are exposed to lower.
- the subject of the present invention ei ne insulation of a conductor of an electrical rotating machine Ma, characterized in that the insulation comprises two or more layers which can be produced by sprayable paint formulations includes, wherein at least one mechanically bearing paint layer with a partial discharge resistant Paint layer to form adjacent layers of insulation.
- the lacquer layers can be sprayed on by means of a powder coating process, which is designed, for example, electrostatically.
- a powder coating process which is designed, for example, electrostatically.
- the thickness of this electrically chargeable boundary layer, the "interface" can also be only a few atomic layers thick, so that the technology of electrostatic powder coating spraying works again.
- a partially discharge-resistant paint formulation contains at least one sprayable resin mixture with a monomeric and / or oligomeric resin component
- Silicon oxide, siloxane and / or silazane base or on the basis of other, above-mentioned partial discharge resistant Lackfor formulations are part of a sprayable formulation according to the invention.
- the invention is an electrical rota-generating machine with such insulation and finally, the subject of the invention is a method for producing an insulation for an electric rotating machine, by spraying a solid powder coating, a liquid solvent-containing paint and / or a liquid solvent-free paint ,
- the Formu lation further includes fillers that are so small that they can be applied by a spray nozzle.
- At least one deemedtladungsre-resistant resin mixture or resin-hardener mixture is sprayed onto the conductor to be insulated for the preparation of the insulation.
- Partial discharge resistant resins and resin blends are at play as those in which the polymeric component is a component having a - [SZR2-O-] n - and / or - [-S1-NR 3 -] n - backbone as a minor component of the resin mixture, and / or resin-hardener mixture, that is less than 50 mol%, in particular less than 40 mol%, and more preferably less than 30 mol% of the polymerizable resin mixture and / or resin-hardener mixture is present.
- a mixture is provided as the resin mixture and / or resin hardener mixture for the insulation, in which at least a portion of the finished insulation to a thermosetting resin mixture and / or resin-hardener mixture is a siloxane and / or silazane-containing compound forming a - [SiR 2 _ 0] n and / or a - [-S 1 NR 3 -] n backbone in the duromer.
- R stands for hydrogen and / or all types of organic radicals which, for curing and / or crosslinking, become NEM suitable for an insulation system insulation material eig NEN.
- R represents -aryl, -alkyl, -heterocycles, nitrogen, oxygen and / or sulfur-substituted aryls and / or alkyls.
- R may be the same or different and represent the following groups:
- Alkyl for example methyl, propyl, isopropyl, butyl, isobutyl, tert-butyl, pentyl, isopentyl, cyclopentyl and all other analogs up to dodecyl, ie the homolog with 12 carbon atoms;
- Aryl for example: benzyl, benzoyl, biphenyl,
- Toluyl-, xylenes and similar aromatics in particular, for example, all aryl radicals, with one or more ren rings whose structure corresponds to the definition of Hückel for the aromaticity,
- Heterocycles in particular sulfur-containing heterocycles such as thiophene, tetrahydrothiophene, 1,4-thioxane and homologues and / or derivatives thereof,
- Oxygen-containing heterocycles e.g. Dioxane
- Nitrogen-containing heterocycles e.g. those with -CN, -CNO, -CNS, -N3 (azide) substituents on the ring or on the rings and
- Sulfur-substituted aryls and / or alkyls e.g. Thiophene, but also thiols.
- Aromaticity refers to the connexion that planar, cyclic-conjugated molecules comprising a number of P-electrons, which can be represented in the form of 4n + 2, possess particular stability, also known as Aromaticity is called.
- the - [SiR 2 _ 0] n - / - [- Si NR3-] n - backbone has, at least one of the polymerisa- tion functionalized monomeric or oligomeric resin component with a carbon - ie - [-CR2-] n-units comprising backbone.
- R is -hydrogen, -aryl, -alkyl, -heterocycles, nitrogen, oxygen and / or sulfur-substituted aryls and / or alkyls.
- epoxy-functionalized components such as
- Bisphenol F diglycidyl ether BFDGE or bisphenol A diglycidyl ether (BADGE), polyurethane and blends. Preference is given to epoxy resins based on bisphenol F diglycidyl ether (BFDGE), bisphenol A diglycidyl ether (BADGE) or mixtures thereof.
- the monomer or oligomeric component functionalized for polymerization which has a - [SiR 2 _ 0] n - and / or - [-S 1 -NR 3 -] n - backbone has one or more,
- Suitable monomerically or oligomerically functionalized monomeric components which have a - [SiR 2 -O-] n - and / or - [- S1-NR 3 -] n - backbone are glycidyl-based and / or epoxy-terminated aryl and / or alkyl siloxanes, such as glycidoxy functionalized, in particular
- glycidoxy-terminated siloxanes For example, a siloxane such as 1,3-bis (3-glycidyl-oxypropyl) tetramethyldisiloxane, DGTMS, and / or glycidoxy-terminated phenyl-dimethylsiloxane and / or phenyl-methyl-siloxane in monomeric and / or oligomeric form is suitable. as in any mixtures and / or in the form of derivatives.
- One of these already tested components is commercially available as "Silres® HP® 1250®. It has been found that at least two-functionalized siloxanes which can be used for the production of thermosets are suitable here.
- Suitable hardeners are cationic and anionic Härtungska catalysts, such as organic salts, such as organic cal ammonium, sulphonium, iodonium, phosphonium and / or imidazolium salts and amines, such as tertiary amines, pyrazoles and / or imidazole compounds.
- organic salts such as organic cal ammonium, sulphonium, iodonium, phosphonium and / or imidazolium salts and amines, such as tertiary amines, pyrazoles and / or imidazole compounds.
- organic salts such as organic cal ammonium, sulphonium, iodonium, phosphonium and / or imidazolium salts and amines, such as tertiary amines, pyrazoles and / or imidazole compounds.
- amines such as tertiary amines, pyrazoles and
- oxirane group-containing compounds such as
- Glycidyl ether can be used as a hardener.
- the base resin and the curing agent can alternatively or additionally by a compound having - [-S1R 2 -O-] n _ and / or - [-S1-NR 3 -] n - backbone, also referred to as Siloxane compound here, partially or completely replaced.
- homopolymerizing high polymers may at room temperature solid di- or trianhydride (derivatives) be useful as a hardener, such as. 3, 3 ', 4, 4' - benzophenone tetracarboxylic dianhydride (BTDA, CAS No. 2421-28-5)
- BTDA room temperature solid di- or trianhydride
- the carbon-based hardener is also partially or completely replaced by siloxane-based hardeners with the same funcionalities.
- the insulation preferably has a ratio of deemedtladungsresisitentem resin, so silica, silazane and / or Siloxanbasierter, "with - [SiR 2 _ 0-] n - and / or - [-S1-NR3 ] n - backbone "- connection to mechanically carrying resin, so carbon-based resin is present in which the mechanically load-bearing resin dominated al so more than 50% by weight and / or more than 50% by volume and / or more than 50 mol% makes ,
- partial discharge-resistant resin so silica, silazane and / or Siloxanbasierter, "with - [SiR 2 _ 0-] n - and / or - [- Si-NR3] n - -Rückgrat” - Bonding to mechanically-bearing resin, ie carbon-based resin "with - [- CR2-] n _ backbone” compound, such as 1: 8 to 1: 4, that is, in the relevant insulation, the hydrocarbon-based compounds in terms of volume 4 to 8 times more than the partially discharge-resistant resin components, which preferably at least partially have a silicon-based backbone.
- the shares mentioned here last relate to the stoichiometry, ie are mole percentages.
- the siloxane and / or silazane-containing component or com ponent based on silica is therefore present in an amount of 10 to 50 mol% in the resin mixture and / or resin-hardener mixture of the formulation.
- the amount of siloxane-containing component in the base resin is no longer is 20 mol%, in particular not more than 18 mol% and FITS preferably not more than 15 mol%.
- the partial discharge resistance of the insulating substance is virtually erratic due to the presence of a known amount of - [SiR 2 -O-] n - and / or a - [-S 1 NR 3] n - bil Denden monomers or oligomers in the base resin elevated.
- layers with at least partially different Formu lierungen can be achieved, for example, that a layer is sprayed with a particularly semi-discharge resistant formulation and the adjacent layers of a formulation that shows good mechanical properties, so it is achieved that the sprayed insulation comprising several different layers is neither too brittle nor too elastic.
- a layer of a very partially discharge-resistant formulation may be combined only very thinly with adjacent layers of less partially-discharge-resistant, but more elastic formulations.
- two different formulations can be sprayed to form alternating layers in the insulation.
- a powder coating spraying is provided, for example, that a thicker layer - for example in the range of lOOym, preferably 150ym up to about 300ym - from a mechanically stable formulation with a thinner, smaller lOOym, preferably smaller than 70ym, completely preferably a layer with a layer thickness in the Nanome ter Scheme, for example, a siloxane and / or
- Silazane-containing formulation are sprayed on.
- an electrostatic powder coating atomization adheres to an insulating layer, can be provided as "interface" so as a boundary layer between two layers, a thinnest, lying in the atomic region, so only a few atomic layers thick, metalli cal layer, the charge on an electrostatic charge
- an interface layer can be produced by sputtering or CVD, chemical vapor deposition or the like.
- FIG. 1 shows a possible sequence of layers of an insulation produced according to an embodiment of the invention in which complete layers are applied in layers, the so-called “onion insulation” around a conductor.
- Figure 2 shows, in contrast, the possible sequence of layers egg ner other embodiment according to the invention, in which not every layer is completely sprayed around the head around and applied, but in cross-section, so-called tes shed isolation image results.
- Figure 1 shows from top to bottom, the thin layer 1 (green ge distinguished) a layer of partially discharge resistant resin, such as a - [SiR 2 -0-] n - and / or a - [- S1-NR 3 -] n - Backbone forming polymer.
- This thin layer 1 can be a Layer thickness in the nanometer range or a few microns ha ben.
- a thicker layer 2 of a mechanically stabi lem resin such as a carbon-based resin, so for example, an epoxy resin, which can be considerably thicker, so possibly up to 200m or in extreme cases up to 300ym thick.
- This thicker layer forms for example the mechanically bearing layer of insulation.
- the conductor 3 for example a copper rod 3, can still be seen.
- FIG. 2 shows the so-called flake structure of the insulation.
- ei ne lacquer layer is not as a completely covering layer on the un direct position, but as a scale, so only a sectionbe rich a lacquer layer of other parts or scales of the situation separated by the mechanically bearing lacquer layer, at the same distance of the equipotential equipotential.
- the different layers are not sprayed on the entire surface at the end of the scale, but in the way that the partially-discharge-resistant layer is not sprayed over the entire surface.
- the type of interruptions is arbitrary. For example, a helix structure is conceivable in which sprayed beyond the rod length of the conductor 3 and this but it rotates about its own axis. Or also that a slotted template is applied in front of the conductor 3, is sprayed through it. This would create large scale scale structures, depending on the template recesses.
- the background of the non-full-area application of the partial release-resistant layer is to create a so-called continuous phase which arises from the mechanically bearing layer. Due to the fact that the individual layers that are mechanically traceable touch each other in the radial direction, that is transversely to the upper surface of the conductor 3, this ensures that the mechanical properties of this layer also dominate in the radial direction.
- This application of the layers ie the design of the shed, is similar to the conventional winding tape insulation.
- the mica platelets of the partially discharge-resistant layer which is applied in the form of dandruff.
- the impregnating resin is then, as it were, the mechanically bearing resin layer which forms a bedding matrix for the flakes.
- the partial discharge resistant flakes of the sprayed insulation have over the Mica platelets have the obvious advantage that they can be adapted variably in geometry to the respective local conditions freely and automatable.
- the spray paint as a powder, wherein a solid mixture is sprayed and the second the spray as a liquid, which is sprayed either with or without solvent.
- the resin mixture, the resin-hardener mixture and / or the resin-hardener-accelerator mixture are present as solid at room temperature and / or under normal pressure.
- the material is either thermally melted and / or discharged electrostatically.
- siloxane-containing compo nent which is solid at room temperature
- formulations which are solid at room temperature and can be sprayed as powder coating, can then be applied, for example, by means of fluidized-bed spraying and / or electrostatic spraying.
- HHPA Hexahydrophthalic anhydride
- Amine derivatives as a curing agent is that by previous, in particular unique, melting with a solid at room tempera ture and / or normal pressure and / or normal conditions solid epoxy resin and / or Siloxanepoxidharz a homogeneously solid de melt is present.
- a solidified melt obtained in this way can be powdered again immediately or after storage, is stoichiometrically easy to mix and best possible ver preserved.
- the powder produced, for example, from the solidified melt melts again and begins to crosslink immediately.
- the aforementioned amine derivatives then no longer require long-lasting oven curing periods, but only short-segment post-curing phases at significantly lower temperatures.
- the spray as a powder coating can also be a liquid paint, so the resin-hardener system in liq siger form or dissolved in a solvent sprayed who the.
- This spraying can be carried out using compressed air or without compressed air.
- the sprayed-on lacquer is finally subjected to a post-curing, which can take place thermally and / or by irradiation, under the conditions of completion.
- a sprayed layer of the insulation system has a thickness in the nanometer range up to a few microns and / or from 50ym to 300ym, preferably 50 to 130 ym and most preferably from 70 to 120 ym.
- insulation thickness Be in the range of 700ym up to about 6mm insulation thickness required, so that the sprayed insulation systems are always applied in multiple layers.
- the sprayable formulation at least one poly merisierbare component comprising a resin-hardener system, and one or more fillers.
- the polymerizable component is a mixture of at least one of a - [SiR 2 _ 0-] n - and / or - [-S1-NR3] n - halti saturated backbone and a - [-CH 2] n _ containing Understood backbone ent holding compound.
- the polymerisable component is selected from thermosets and / or thermoplastics.
- dimethylformamide, 2-butanone, acetone and / or 1-butanol may be present as the solvent in the sprayable liquid formulation.
- fine-grained mica as a filler results in the advantage that the resulting Particles have a relatively low abrasiveness and therefore they can be simply sprayed in the form of a particle-paint suspension by means of a nozzle on a conductor to obtain an insulation system.
- a sprayed formulation either as a powder coating or as a liquid formulation with or without solvents, in particular for the production of the main insulation, allows a partially or fully automated production of Isolationsssys system also individually adapted to the respective machine th insulation systems.
- the spray technology allows an increase in the power density of electrically rotating machines, assuming that the sprayed insulation system has the same electrical life, such as a conventional insulation system with corona protection band tape adhesive Bandeb schreiber, possibly applied by hand Umwicke treatment, then resin impregnation, optionally in vacuo and final resin cure.
- Figure 3 shows the state of the art with mica tape insulation wound around the conductor
- Figure 4 shows the spray insulation applied as a sprayable formulation.
- Figure 3 shows the state of the art, which was traditionally set wound insulation system 11 to the square profile of the conductor 13, for example, a copper conductor, package 12 in sheet metal.
- the winding thickness 15 is less than the winding 15 'on the flat side. This is a simple consequence of the winding 15 which simply rests more closely against the edges 14 than at the edges flat sides 16.
- a winding thickness 15 of 2.2 mm is measured at the edge 14, whereas on the flat side 16, a winding thickness 15 of 2.7 mm can be measured.
- Figure 3 shows in contrast to the sprayed insulation system according to an embodiment of the invention. To know he is again the square profile 13 of the head of all recently no longer the wound, but sprayed in accordance with the inven tion insulation system 11 in the laminated core 12th
- the conductor 13 has a maximum width 18 of 12 mm
- it can have up to one mm more width, that is to say a width 18 of 13 mm.
- such an enlarged conductor 13 can also transport other quantities of electricity.
- the invention discloses for the first time a sprayable formulation for producing a multilayer insulation for an electric machine, in particular a rotating electrical machine of the high voltage or medium voltage range such as a generator, transformer, the higher rated voltages at operating voltages, that is, for example, from 1 kV or more are exposed. Moreover, the invention relates to an electrical machine comprising such insulation, finally, the invention relates to a method for producing the multilayer insulation. This comprises spraying various formulations with or without intervening, in particular metallic, interfaces and can be automated.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Manufacturing & Machinery (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
- Manufacture Of Motors, Generators (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018202061.2A DE102018202061A1 (de) | 2018-02-09 | 2018-02-09 | Isolation, elektrische Maschine und Verfahren zur Herstellung der Isolation |
| PCT/EP2019/053049 WO2019154933A1 (de) | 2018-02-09 | 2019-02-07 | Isolation, elektrische maschine und verfahren zur herstellung der isolation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3729470A1 true EP3729470A1 (de) | 2020-10-28 |
Family
ID=65520232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19706910.7A Pending EP3729470A1 (de) | 2018-02-09 | 2019-02-07 | Isolation, elektrische maschine und verfahren zur herstellung der isolation |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11424654B2 (de) |
| EP (1) | EP3729470A1 (de) |
| CN (1) | CN111684546B (de) |
| DE (1) | DE102018202061A1 (de) |
| RU (1) | RU2756293C1 (de) |
| WO (1) | WO2019154933A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4046773A1 (de) * | 2021-02-22 | 2022-08-24 | Siemens Aktiengesellschaft | Isolationssystem für elektrische rotierende maschinen, herstellungsverfahren dazu sowie pulverlackbeschichtung |
| DE102021201666A1 (de) * | 2021-02-22 | 2022-08-25 | Siemens Aktiengesellschaft | Nutisolationssystem für eine elektrische rotierende Maschine, Verfahren zur Herstellung eines Nutisolationssystems |
| CN116218277B (zh) * | 2023-01-18 | 2024-03-01 | 天蔚蓝电驱动科技(江苏)有限公司 | 用于轴或轴承的绝缘涂层、轴承、新能源汽车用电机及绝缘涂层的制备方法 |
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| RU2076361C1 (ru) * | 1992-04-01 | 1997-03-27 | Хабаровский завод металлоконструкций | Способ дезактивации и биореактор |
| ATE186160T1 (de) | 1996-05-15 | 1999-11-15 | Siemens Ag | Elektrischer leiter, anordnung elektrischer leiter sowie verfahren zur isolation eines elektrischen leiters einer elektrischen grossmaschine |
| DE19650288A1 (de) * | 1996-12-04 | 1998-07-02 | Fraunhofer Ges Forschung | Metallackdrähte |
| HU217112B (hu) | 1997-01-21 | 1999-11-29 | Furukawa Electric Institute Of Technology | Epoxi-szilikon hibrid gyanta alapú villamos szigetelőkompozíciók |
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| DE19963491A1 (de) * | 1999-12-28 | 2001-07-05 | Alstom Power Schweiz Ag Baden | Verfahren zur Herstellung einer hochwertigen Isolierung von elektrischen Leitern oder Leiterbündeln rotierender elektrischer Maschinen mittels Sprühsintern |
| US6778053B1 (en) | 2000-04-19 | 2004-08-17 | General Electric Company | Powder coated generator field coils and related method |
| EP1354916A1 (de) | 2002-04-17 | 2003-10-22 | Abb Research Ltd. | Selbstheilende Epoxidharze für die Herstellung von elektrischen Isolierungen |
| US7834121B2 (en) | 2004-09-15 | 2010-11-16 | Ppg Industries Ohio, Inc. | Silicone resin containing coating compositions, related coated substrates and methods |
| JP4542463B2 (ja) | 2005-04-25 | 2010-09-15 | 日立マグネットワイヤ株式会社 | 耐部分放電性絶縁塗料、絶縁電線、及びそれらの製造方法 |
| JP2010074908A (ja) * | 2008-09-17 | 2010-04-02 | Toshiba Corp | 固定子コイルおよび回転電機 |
| JP2010257952A (ja) | 2009-03-31 | 2010-11-11 | Jsr Corp | 電線被覆用放射線硬化性樹脂組成物 |
| CN102725802B (zh) | 2010-02-03 | 2016-04-06 | Abb研究有限公司 | 电绝缘体系 |
| JP2012195290A (ja) | 2011-03-02 | 2012-10-11 | Hitachi Cable Ltd | 絶縁電線 |
| JP5556720B2 (ja) | 2011-03-28 | 2014-07-23 | 日立金属株式会社 | 絶縁電線 |
| DE102011083228A1 (de) | 2011-09-22 | 2013-03-28 | Siemens Aktiengesellschaft | Isoliersysteme mit verbesserter Teilentladungsbeständigkeit, Verfahren zur Herstellung dazu |
| DE102011083734A1 (de) * | 2011-09-29 | 2013-04-04 | Siemens Aktiengesellschaft | Elektrische Maschine und Verfahren zur Herstellung |
| DE102012000290A1 (de) * | 2012-01-10 | 2013-07-11 | Voith Patent Gmbh | Glimmschutz |
| CN102585663B (zh) | 2012-02-06 | 2013-11-20 | 苏州太湖电工新材料股份有限公司 | 一种电机用无卤阻燃耐高温绝缘漆 |
| DE102012205563A1 (de) | 2012-04-04 | 2013-10-10 | Siemens Aktiengesellschaft | Isoliersystem mit Endenglimmschutz und Verfahren zur Herstellung des Endenglimmschutzes |
| JP2015185417A (ja) | 2014-03-25 | 2015-10-22 | 日立金属株式会社 | 巻線および巻線用塗料 |
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| JP6779476B2 (ja) | 2015-03-19 | 2020-11-04 | ナガセケムテックス株式会社 | 屋外電気絶縁用エポキシ樹脂組成物及び屋外電気絶縁用部材 |
| CN105449955A (zh) * | 2015-12-17 | 2016-03-30 | 安徽皖南新维电机有限公司 | 一种提高电机绝缘性能的方法 |
| KR101665910B1 (ko) * | 2016-03-08 | 2016-10-12 | 엘에스전선 주식회사 | 내코로나성 평각 권선 |
| CN107545948A (zh) * | 2016-06-23 | 2018-01-05 | 中国科学院苏州纳米技术与纳米仿生研究所 | 柔性导线及其制备方法 |
| CN106009527B (zh) | 2016-07-27 | 2019-01-15 | 苏州巨峰电气绝缘系统股份有限公司 | 一种耐低温电机用绝缘树脂及其制备方法 |
| EP3460959A1 (de) | 2017-09-20 | 2019-03-27 | Siemens Aktiengesellschaft | Elektrisches isolationsmaterial und/oder imprägnierharz für die wickelbandisolierung einer mittel- und/oder hochspannungsmaschine sowie ein isolationssystem daraus |
-
2018
- 2018-02-09 DE DE102018202061.2A patent/DE102018202061A1/de not_active Withdrawn
-
2019
- 2019-02-07 CN CN201980012071.4A patent/CN111684546B/zh active Active
- 2019-02-07 US US16/968,406 patent/US11424654B2/en active Active
- 2019-02-07 EP EP19706910.7A patent/EP3729470A1/de active Pending
- 2019-02-07 WO PCT/EP2019/053049 patent/WO2019154933A1/de not_active Ceased
- 2019-02-07 RU RU2020128156A patent/RU2756293C1/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| RU2756293C1 (ru) | 2021-09-29 |
| CN111684546B (zh) | 2023-05-23 |
| CN111684546A (zh) | 2020-09-18 |
| DE102018202061A1 (de) | 2019-08-14 |
| US20200403475A1 (en) | 2020-12-24 |
| WO2019154933A1 (de) | 2019-08-15 |
| US11424654B2 (en) | 2022-08-23 |
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