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EP2810359A2 - Matière de protection anti-effluves pour une machine électrique - Google Patents

Matière de protection anti-effluves pour une machine électrique

Info

Publication number
EP2810359A2
EP2810359A2 EP13713768.3A EP13713768A EP2810359A2 EP 2810359 A2 EP2810359 A2 EP 2810359A2 EP 13713768 A EP13713768 A EP 13713768A EP 2810359 A2 EP2810359 A2 EP 2810359A2
Authority
EP
European Patent Office
Prior art keywords
glow
initiator
corona
shielding material
filler
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Withdrawn
Application number
EP13713768.3A
Other languages
German (de)
English (en)
Inventor
Mario Brockschmidt
Stefan Kempen
Friedhelm Pohlmann
Guido Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP13713768.3A priority Critical patent/EP2810359A2/fr
Publication of EP2810359A2 publication Critical patent/EP2810359A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/42—Means for preventing or reducing eddy-current losses in the winding heads, e.g. by shielding
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/0047—Photosensitive materials characterised by additives for obtaining a metallic or ceramic pattern, e.g. by firing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
    • 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
    • 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
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials
    • H05K9/0079—Electrostatic discharge protection, e.g. ESD treated surface for rapid dissipation of charges
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31511—Of epoxy ether
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]

Definitions

  • the invention relates to a glow shielding material for producing a corona protection layer for an electrical machine.
  • the term "electrical machine” generally refers to an energy converter which converts between electrical and mechanical energy, namely an electric motor or a generator. or runners).
  • the electrical machine is in particular a turbo-generator, which is used in a power plant for converting mechanical into electrical energy.
  • a turbo generator is currently mostly as three-phase rotary ⁇ -phase synchronous machine pole with a massive two or four ⁇
  • the power range of such a turbo-generator typically ranges from about 20 MVA to about 2000 MVA.
  • the stator of a conventional synchronous generator comprises a multiplicity of so-called stator windings, in which an alternating voltage is induced by inductive interaction with the rotating rotor which is acted upon by a constant current.
  • the stator windings are accommodated in a so-called laminated core. This serves, among other things, to guide and amplify the magnetic field. To reduce losses due to eddy currents, the entire laminated core is made up of thin, mutually insulated sheets.
  • the stator windings consist of a multiplicity of rods, whose respective center pieces (the so-called "active part") are inserted in grooves of the laminated core Grooves out. There, the individual rods are connected to the stator winding (ie contacted with each other).
  • the inset in the laminated core members or areas are at a high electrical potential and are therefore among themselves, as well as insulated from the grounded lamination stack by a Hauptiso ⁇ lier für.
  • the main insulating layer is usually shielded against cavities and detachments with an inner and an outer conductive layer (internal potential control, IPS, or external corona protection, AGS).
  • IPS internal potential control
  • AGS external corona protection
  • the outer corona ends in the Austrittsbe ⁇ rich, in which the respective rod of the corresponding groove emerges, while the main insulating layer is continued outside the groove.
  • This arrangement is a critical point in terms of electrical strength because an interface is formed between the main insulating layer in a solid state and a surrounding gaseous fluid (usually air or hydrogen).
  • a resulting dielectric separation surface between the main insulation and the fluid results in a typical sliding arrangement which, in addition to a purely radial field component, as occurs in the region of the laminated core, additionally has a tangential (ie within the separating surface, but in particular approximately parallel to the longitudinal extension of the Lei ⁇ ters extending) field component has.
  • Both the facedglimmschutz and the Endenglimmschutz are usually either by wrapping the main insulating layer with electrically weakly conductive (AGS) or
  • the belts are usually made of an electrically non-conductive carrier material (eg, polyester fabric, Polyesterge ⁇ weave or glass fabric) and a reactive resin (for example, epoxidized phenol novolacs, often by means of dicyandiamine be ⁇ accelerated) in a pre-reacted state ( "bi-Stage") which with an electrically (Semi-) conductive filler is filled.
  • an electrically non-conductive carrier material eg, polyester fabric, Polyesterge ⁇ weave or glass fabric
  • a reactive resin for example, epoxidized phenol novolacs, often by means of dicyandiamine be ⁇ accelerated
  • Conductive or semiconductive coatings are typically solvent-telbasêt systems such as phenolic resins, which are in turn provided with lei ⁇ Tenden or semi-conductive or semi-conductive functionalized fillers.
  • EP 1 118 086 B1 discloses an external corona shield which contains an inorganic filler coated with antimony-doped tin oxide.
  • silicon carbide is used for end corona protection. The resulting electrical resistance of the
  • Grain size determined. Disadvantageously above-mentioned bands to voll pati ⁇ gen cured about two hours at about 165 ° C or up to 12 hours to be cured at 120 ° C. Due to their comparatively high solvent content, the above-mentioned lacquers also have to dry for several hours until further processing.
  • the invention has for its object to enable a particularly efficient production of a corona protection layer for an electrical machine.
  • This object is with respect to a - usable for producing a corona protection - Glimmschutzwerkstoffs he ⁇ inventively solved by the features of claim 1.
  • the ⁇ after Glimmschutzwerkstoff comprises a (hereinafter also referred to as "matrix" hereinafter) matrix material flowable in a prefabricated state, that is fluid or viscous ⁇ liquid and which is curable in a curing reaction to a solid.
  • the matrix material into ⁇ particular can on the one hand consist essentially of monomers comparable in the curing reaction to the solid cross-link chains and / or the like.
  • the matrix material may already consist of partially precrosslinked (bi-stage) polymers, which in turn crosslink to form the solid in the curing reaction, in which case a curing reaction may be carried out in particular by polymerization, polyaddition or polycondensation.
  • the Glimmschutzwerkstoff further contains at least one photosensitive initiator which by electromagnetic radiation of a given wavelength range (in particular ultraviolet (UV) light) in a reactive to stand ⁇ is transferable, in which it can initiate the curing reaction.
  • a photosensitive initiator which by electromagnetic radiation of a given wavelength range (in particular ultraviolet (UV) light) in a reactive to stand ⁇ is transferable, in which it can initiate the curing reaction.
  • the conversion to the reactive state is hereinafter also referred to as "activation" of the initiator.
  • the initiator can emit in the reactive state, and in particular reactive species, which then trigger the Aushär ⁇ tung reaction. Alternatively, it can also itself in the excited state, thereby initiating the curing reaction itself.
  • the Glimmschutzwerkstoff contains at least one par ⁇ tikulär (ie in the form of particles, thus as a powder) present filler which is electrically conductive, so naturally or as a result of an appropriate coating and / or surface treatment has an electrical conductivity.
  • the filler may in this case be semi or weak ⁇ conductive.
  • the electrical properties of the corona protection material, in particular its electrical conductivity, are essentially influenced by the type, amount and particle size distribution of the filler.
  • a using the inventive Herge Glimmschutzwerkstoff ⁇ imputed Endenglimmschutz preferably has a surface resistance between 10 4 ⁇ / cm 2 and 10 14 ⁇ / cm 2 (preferably Zvi ⁇ rule 10 8 ⁇ / cm 2 and 10 12 ⁇ / cm 2).
  • a using the inventive Glimmschutzwerkstoff Herge ⁇ imputed outer corona preferably has a sheet resistance of between 3 ⁇ / cm 2 and 20K ohms / cm 2 in the dry state and 3 k ⁇ / cm 2 and 200K ohms / cm 2 in the impregnated state.
  • the corona-resistant material according to the invention is essentially formed by a matrix material which can be hardened by means of electromagnetic radiation and which is filled with a conductive or semiconductive, particulate filler.
  • the radiation to be used for curing may in principle be infrared, X-ray and / or gamma radiation.
  • the photosensitive initiator can be converted into its reactive state by irradiation with UV radiation.
  • a conductor bar provided with an outer or end corona protection curing the usual corona-resist or impregnating agent is the slowest production step, the entire production is considerably accelerated by a reduction of the curing time.
  • the time can be until a subsequent manufacturing step is reduced to, for example, about 180 seconds, the curing means Strah ⁇ lung.
  • the curing means Strah ⁇ lung.
  • the time required for the completion of the end corona protection of a generator rod of several days and distribution over several operating working layers can thus be reduced to a few minutes.
  • a photosensitive Initia ⁇ gate can be put in the normal case solely by electromagnetic radiation of a given wavelength range in its reactive state, so that miss activation comparable, for example, by high temperatures is comparatively safely excluded.
  • the curing reaction is carried out by a radical crosslinking mechanism in which a radical is formed in a starting reaction, or by a cationic crosslinking mechanism in which a cation is formed in the starting reaction.
  • a radical crosslinking mechanism in which a radical is formed in a starting reaction
  • a cationic crosslinking mechanism in which a cation is formed in the starting reaction.
  • the radiation used for activation can be converted into its respective reactive state.
  • the simultaneous use of multiple initiators is in particular due to the fact advantageous that a photo ⁇ sensitive initiator to a particular wavelength (a specific spectral narrow wavelength range in more detail) is assigned many times, wherein the initiator reactive by radiation from this wavelength range is most effective in its Condition is transferable. This wavelength range falls this regularly with an absorption maximum of ⁇ From sorptionsspektrums the associated initiator.
  • the photosensitive initiator 2,4,6-Trimethylbenzoyldiphenylphosphinoxid radiation in the UV-A Be ⁇ rich absorbed strongly with an absorption maximum at about 370 nm, while it is almost transparent for radiation with a shorter wavelength.
  • the photosensitive initiator methyl-o-benzoylbenzoate absorbs in the shorter-wave UV range.
  • the concentration of the initiator in particular reactive ⁇ sondere is selected according to low, so that incident radiation is not fully absorbed is equal to the surface of the material layer.
  • a preferred initiator concentration is based on the flowable at a mass fraction of about 1% initiator Glimmschutzwerkstoff (the Glimmschutzwerkstoff preference ⁇ as formulated solvent-free and thus experiences only a very small mass loss in the off ⁇ curing).
  • the Massenan- refers in part when using multiple initiators to the sum of the individual amounts of the particular Initiato ⁇ ren.
  • the necessary for curing radiation at differing wavelengths chen ⁇ takes place in particular either sequentially or simultaneously.
  • the irradiation is effected by a so-called F-radiator (radiator with an iron spectrum), G-radiator (radiator with a gallium spectrum) or H-radiator (radiator with a mercury spectrum) or by connecting at least two such radiators in series.
  • TPO 2, 4, 6-trimethylbenzoyldiphenyl phosphine oxide
  • MOBB methyl o-benzoylbenzoate
  • the anti-corrosive material contains at least one accelerator (also: synergist or catalyst) which accelerates the curing reaction.
  • accelerator also: synergist or catalyst
  • the Glimmschutzwerkstoff contains at least one so-called "secondary accelerators".
  • This is an accelerator which does not act on the matrix but to the initiator by changed ⁇ changed the activation wavelength of the initiator.
  • the accelerator this affects the initiator in that it can be converted into its reactive state by radiation having a wavelength deviating from its typical activation wavelength,
  • such a secondary accelerator may also reduce the activation energy to convert the initiator to its reactive state.
  • At least one further temperature-sensitive initiator which can be converted into its reactive state by a temperature increase, is contained in the glowproofing material.
  • the Glimmschutzwerkstoff is advantageously affected by a so-called ⁇ "dual cure” option, that is, the curing reaction may optionally ⁇ or additive triggered both by radiation and by an increase in temperature.
  • the Glimmschutzwerkstoff contains as an additive is preferably a phosphorus compound, in particular diphenyl (preferably in the form of the Pro ⁇ domestic product Disflamoll® DPK Fa. Lanxess) or Dimethylpro- panphosphonat (preferably in the form of the product Levagard® DMPP Fa. Lanxess).
  • this additive advantageously self-extinguishing in case of fire is increased.
  • the corona shielding material can advantageously be set to a low flame resistance, and thus fulfill "UL-94", "V-0" or further flammability limitation and standard.
  • the corona shielding material may contain at least one further additive for influencing the material properties.
  • suitable additives in particular advantageously the viscosity of the glowproofing material can be adjusted so that it can be formulated, optionally, as a sprayable paint or as a spreadable paint is. In this way, advantageously even a complete freedom from solvents of the glow protection ⁇ material can be achieved in the ideal case, whereby the corona protection material is characterized as particularly healthy and environmentally friendly.
  • Preferred matrix materials include bisphenol A diglycidyl ether, bisphenol F diglycidyl ether, 3,4-epoxycyclohexylmethol 3 ', 4'-epoxycyclohexanecarboxylate (EEC), phenol novolac, acrylate, polyester (especially polyesterimide),
  • the matrix material may also consist of a mixture of these substances.
  • the invention is also not limited to the use of these materials.
  • a urethanized acrylate as the matrix material advantageously a particularly good Temperaturbestän ⁇ speed of the material is achieved.
  • a heat resistance class (WBI) up to 180 ° C can be achieved.
  • a good scratch resistance is achieved.
  • the filler contained in the glowproofing material consists in preferred embodiments of silicon carbide particles, graphite particles, carbon black (in particular carbon black) coated mica particles and / or "Minatec" particles (Merck) .
  • the filler particles preferably have one average grain diameter 2 to 50 ym, preferably about 10 ym on.
  • the corona-resistant material in a preferred composition has a filler content of about 50 to 90, preferably about 80 percent by mass.
  • the proposed corona protection material is preferably used for producing an external corona protection and / or an end corona protection for an electrical machine.
  • the filler contained is adapted in a manner known per se to the respective intended use.
  • graphite is included as a filler, while in the use as EGS in particular Siliziumkar ⁇ bid is used.
  • the Glimmschutzwerkstoffs for producing a corona protection is also in other ⁇ preparation surfaces in which a controlled guided potential reduction is not ⁇ maneuverable, for example, at a cable termination or cable bushing, conceivable.
  • the Glimmschutzwerkstoff is preferably used as a paint or in ⁇ yoggnierstoff for impregnating a non-woven fabric where ⁇ in turn, depending on the intended use, the viscosity and the matrix material are suitably selected.
  • the invention is further an electrical Ma ⁇ machine, in particular a high performance motor or generator, which (in particular, a stator coil) comprises a conductor rod whose main insulating layer with a
  • Corrosion protection layer is provided.
  • the corona protection is according to the invention were produced by applying the above-beschrie ⁇ surrounded, according to the invention Glimmschutzwerkstoffes and by curing the material by means of electromagnetic radiation. In its raw state of the corona protection ⁇ material is again in particular as a coating or as an import nostignierstoff ago.
  • FIG. 1 is a rough schematic representation of a detail of an electrical machine with an insulated conductor bar, which forms part of a stator winding, wherein the conductor bar is provided with a glow protection layer consisting of a glow protection material,
  • Corrosion protection layer formed outside or end Corrosion protection in a prefabrication state before curing of the corona protection material
  • FIG 3 in illustration according to FIG 2, the outer or Endenglimmtik after curing of the anti-corrosive material.
  • FIG. 1 shows a highly simplified representation of a section of an electrical machine 1, here a three-phase turbo generator.
  • the machine 1 comprises a Sta ⁇ tor 2 (also referred to as a stand), in which a (not explicitly ⁇ zit shown) rotor is rotatably mounted.
  • the stator 2 comprises a (stator) laminated core 4 formed from a multiplicity of sheet metal plates 3 which are lined up with one another and insulated from one another.
  • a plurality of continuous (longitudinal) grooves are formed transversely to the surface extent of the sheet metal plates 3 in a manner known per se 5 introduced, of which only one is shown in FIG 1 for reasons of simplification.
  • each groove 5 is a conductor bar 7 a.
  • Each conductor bar 7 is again formed (not explicitly illustrated) from a plurality of mutually insulated copper partial conductors, which are twisted together to form a so-called Roebel bar.
  • the conductor bar 7 is provided inside the main insulating layer 11 with an internal potential controller 12 formed by a conductive fleece.
  • the main insulating layer 11 is surrounded at least within the laminated core 4 on the outside with an electrically conductive layer 15, which serves as Basglimmtik 16. The outer corona protection 16 is continued somewhat beyond the groove outlet 10, thus protruding slightly from the sheet metal package 4.
  • an end corona shield 17 is applied to the main insulating layer 11, which is formed by a semiconductive layer 18 whose surface resistance in the axial direction of the conductor bar 7 varies in a location-dependent manner.
  • the production of the outer glow protection 16 and the end corona protection 17 is schematically illustrated.
  • the outer corona protection 16 or end corona protection 17 is shown in FIG. 2 in a prefabricated state 20 and in FIG. 3 in an end state 21.
  • a Glimmschutzwerkstoff 22 11 is swept in a first ⁇ viscous state on the circumference of the main insulating layer of FIG. 2
  • the Glimmtikwerkstoff 22 includes a matrix mate rial ⁇ 23, a photosensitive initiator 24 (here schematically represented as dots) and a filler 25, which in the form of particles, that grains (here schematically shown as a bar) is present.
  • the filler used 25 varies.
  • the filler 25 For the production of the external corona protection 16, in particular graphite is used as filler 25 due to its good conductivity.
  • Silicon carbide is preferably used for the production of the final corona protection 17.
  • the Glimmschutzwerkstoff 21 is irradiated with electromagnetic radiation ⁇ 26 whereby the initiator is converted into a reactive state 24 in which it induces a hardening of the matrix material 23rd
  • the set ⁇ a photosensitive initiator is selected such that the part by matrix material 23 and filler 25 absor ⁇ Bêt or scattered radiation 26 in the vicinity of the
  • either the respectively correspondingly filled viscous corona shielding material 22 can be applied directly to the
  • Main insulating layer 11 are applied.
  • the main insulating layer 11 can also be initially wrapped with a soakable fabric tape, which is then impregnated with the corona protection material 22.
  • the corona shielding material 21 contains
  • For preparing a end corona shielding 17 is an approximately 100 micron thick layer deposited by painting and subsequent ⁇ itzd irradiated with UV-light from a G-radiator for 180 s. After complete curing, additional layers can be applied in the same manner.
  • the curing reaction can be triggered by irradiation with ultraviolet radiation as well as by heating at 80 ° C for 1.5 hours.
  • the Glimmschutzwerkstoff 21 in one of the vorste ⁇ starting mentioned embodiments about 0.1% by mass of (mono) ethanolamine is added as additive, ent ⁇ counteracts the formation of reactive species tive at the aging of the matrix material 22nd Percentages always refer to the mass of the total formulation.
  • the matrix material 22 of the glowproofing material 21 can be used in particular as:

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

L'invention concerne une matière de protection anti-effluves (22) pour la fabrication particulièrement rationnelle d'une couche de protection anti-effluves (16, 17) pour une machine électrique (1). La matière de protection anti-effluves (22) contient une matière de matrice (22) tout d'abord fluide qui peut être durcie en une matière solide dans une réaction de durcissement. La matière de protection anti-effluves (22) contient en outre un amorceur photosensible (24) qui peut être amené dans un état réactif déclenchant la réaction de durcissement par un rayonnement électromagnétique (25). La matière de protection anti-effluves (22) contient en plus au moins une matière de remplissage électroconductrice (25) présente sous forme particulaire.
EP13713768.3A 2012-03-28 2013-03-18 Matière de protection anti-effluves pour une machine électrique Withdrawn EP2810359A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13713768.3A EP2810359A2 (fr) 2012-03-28 2013-03-18 Matière de protection anti-effluves pour une machine électrique

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP20120161774 EP2645540A1 (fr) 2012-03-28 2012-03-28 Matériau anti-effluves pour une machine électrique
EP13713768.3A EP2810359A2 (fr) 2012-03-28 2013-03-18 Matière de protection anti-effluves pour une machine électrique
PCT/EP2013/055512 WO2013143895A2 (fr) 2012-03-28 2013-03-18 Matière de protection anti-effluves pour une machine électrique

Publications (1)

Publication Number Publication Date
EP2810359A2 true EP2810359A2 (fr) 2014-12-10

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP20120161774 Withdrawn EP2645540A1 (fr) 2012-03-28 2012-03-28 Matériau anti-effluves pour une machine électrique
EP13713768.3A Withdrawn EP2810359A2 (fr) 2012-03-28 2013-03-18 Matière de protection anti-effluves pour une machine électrique

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20120161774 Withdrawn EP2645540A1 (fr) 2012-03-28 2012-03-28 Matériau anti-effluves pour une machine électrique

Country Status (4)

Country Link
US (1) US20150042195A1 (fr)
EP (2) EP2645540A1 (fr)
CN (1) CN105210270A (fr)
WO (1) WO2013143895A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014226097A1 (de) * 2014-12-16 2016-06-16 Siemens Aktiengesellschaft Glimmschutzmaterial mit einstellbarem Widerstand
US10992201B2 (en) 2017-08-07 2021-04-27 General Electric Company Electrical propulsion system with corona suppression on a vehicle
EP3462463A1 (fr) * 2017-09-28 2019-04-03 Siemens Aktiengesellschaft Système d'isolation, matériau isolant et matériau isolant destiné à la fabrication du système d'isolation
WO2020033512A1 (fr) * 2018-08-07 2020-02-13 Tau Motors, Inc. Moteurs électriques
DE102021209276A1 (de) 2021-08-24 2023-03-02 Siemens Aktiengesellschaft Glimmschutzsystem, elektrische Maschine und Verwendung des Glimmschutzsystems in einer elektrischen Maschine

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4999136A (en) * 1988-08-23 1991-03-12 Westinghouse Electric Corp. Ultraviolet curable conductive resin
EP0638547B1 (fr) * 1993-08-09 2000-08-16 Ciba SC Holding AG (Méth)acrylates contenant d'uréthanes
CA2129073C (fr) * 1993-09-10 2007-06-05 John P. Kalinoski Joints moulants iem
US20010028953A1 (en) * 1998-11-16 2001-10-11 3M Innovative Properties Company Adhesive compositions and methods of use
US6103640A (en) * 1997-09-12 2000-08-15 Bridgestone Corporation Electromagnetic-wave shielding and light transmitting plate
DE19839285C1 (de) * 1998-08-28 2000-04-27 Siemens Ag Glimmschutzband
US7875347B2 (en) * 2003-12-29 2011-01-25 General Electric Company Composite coatings for groundwall insulation, method of manufacture thereof and articles derived therefrom
DE102004008365A1 (de) * 2004-02-20 2005-09-08 Altana Electrical Insulation Gmbh Verfahren zur Herstellung von beschichteten elektrischen Drähten
JP2005272702A (ja) * 2004-03-25 2005-10-06 Jsr Corp 硬化性組成物、その硬化物及び積層体
CN101535406A (zh) * 2006-08-01 2009-09-16 沙伯基础创新塑料知识产权有限公司 具有emi屏蔽性的阻燃热塑性组合物
US20080033083A1 (en) * 2006-08-01 2008-02-07 Gang Li Flame retardant thermoplastic compositions having emi shielding
ES2654544T3 (es) * 2008-06-23 2018-02-14 Parker-Hannifin Corporation Materiales de blindaje IEM
EP2356182B1 (fr) * 2008-11-12 2015-05-06 Basf Se Matières de revêtement durcissables par rayonnement
JP2010155974A (ja) * 2008-12-01 2010-07-15 Nitto Denko Corp アクリル系感圧性接着シート、アクリル系感圧性接着シートの製造方法、及び積層構成
CA2770719C (fr) * 2009-08-12 2017-12-12 Jonathan Bergin Agent de remplissage d'espace forme en place totalement durci thermiquement ou electriquement conducteur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013143895A2 *

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EP2645540A1 (fr) 2013-10-02
US20150042195A1 (en) 2015-02-12

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