EP3656039A1 - Matériau d'isolation électrique et/ou résine d'imprégnation pour l'isolation de ruban d'enroulement d'une machine à moyenne et/ou haute tension et système d'isolation en ce matériau - Google Patents

Matériau d'isolation électrique et/ou résine d'imprégnation pour l'isolation de ruban d'enroulement d'une machine à moyenne et/ou haute tension et système d'isolation en ce matériau

Info

Publication number
EP3656039A1
EP3656039A1 EP18779235.3A EP18779235A EP3656039A1 EP 3656039 A1 EP3656039 A1 EP 3656039A1 EP 18779235 A EP18779235 A EP 18779235A EP 3656039 A1 EP3656039 A1 EP 3656039A1
Authority
EP
European Patent Office
Prior art keywords
insulation
backbone
base resin
sir
insulating material
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
Application number
EP18779235.3A
Other languages
German (de)
English (en)
Inventor
Jürgen Huber
Steffen Lang
Niels Müller
Michael Nagel
Matthias ÜBLER
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.)
Innomotics GmbH
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
Publication of EP3656039A1 publication Critical patent/EP3656039A1/fr
Pending 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
    • H02K3/30—Windings characterised by the insulating material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
    • C08G59/22—Di-epoxy compounds
    • C08G59/30—Di-epoxy compounds containing atoms other than carbon, hydrogen, oxygen and nitrogen
    • C08G59/306—Di-epoxy compounds containing atoms other than carbon, hydrogen, oxygen and nitrogen containing silicon
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of 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
    • H01B3/307—Other macromolecular compounds
    • 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
    • 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

Definitions

  • the invention relates to an electrical insulation material and / or impregnating resin for the winding tape insulation and an insulation system, for example an insulation system for a rotating electrical machine, in particular a ⁇ tel or high voltage machine.
  • EP 1 981 150 A2 describes a generator with a rotatable rotor and a stator arranged around the rotor.
  • the stator has a rotationally symmetrically configured laminated core, wherein electrically conductive winding rods run in grooves on the laminated core.
  • a winding head which connects the winding rods via connecting webs to a closed winding.
  • An insulation system has the task electrical conductors, such as wires, coils and winding rods, permanently against each other and against the laminated core of the stator or to isolate the environment.
  • the insulation system has an insulation between partial conductors (partial conductor insulation), between the conductors or winding bars (conductor or winding insulation). tion) and between the conductors and the ground potential in the slot and winding head area (main insulation).
  • the preformed coils made of insulated partial conductors are wrapped with mica tapes and impregnated with a resin as part of a vacuum pressure impregnation (VPI process).
  • Mica tapes are used in the form of mica paper.
  • the cavities in the mica paper between the individual particles and / or strip folds are filled with the insulating material.
  • the composite of impregnating resin and mica paper is hardened, forming the insulating material, which is then processed in the insulation system and provides the mechanical strength of the insulation system.
  • the electrical strength results from the many ⁇ number of solid-solid interfaces of the mica inn.
  • the VPI process therefore requires even the smallest cavities in the insulation to be filled with resin to minimize the number of internal gas-solid interfaces.
  • a conventional insulation system an impregnated winding of mica tape with tape adhesive and tape accelerator, a base resin, for example an epoxy resin and one or more hardeners, optionally also epoxy-functionalized hardener, is in the range of 0.5 to 6 mm thick.
  • the thickness of the insulation system is basically as small as possible to choose, in order to achieve high torquesgra ⁇ de of the machines.
  • it is endeavored to reduce the thickness of the insulation system, for example by about 20%.
  • This inevitably leads to increasing electric field strengths in the insulation system from - again, for example, 3.5 kV / mm to 4.5 kV / mm and thus to an increased electrical see partial discharge activity.
  • the commonly used insulation systems allow permanent operating field strengths of 3.5kV / mm with a technically possible lifetime of at least 20 years.
  • Previously used carbon-based as base resins for electrical insulation and in particular as impregnating resins for winding tape insulation preferred epoxy resins which are in liquid form on a carbon-based (-CR 2 -) n _ return ⁇ grat all possible functional groups, for example also carry epoxy groups. These are reacted with hardener to a thermosetting plastic, which forms a casting and / or, for example, the impregnation of Wickelbandiso ⁇ lation.
  • the object of the invention is to provide an approach for improving insulation systems for medium and high-voltage machines by providing a new and better, in particular partial discharge-resistant insulating material.
  • the present invention is therefore a Isola ⁇ tion material and / or impregnating resin for a Wickelbandiso ⁇ -regulation, at least a base resin, a curing agent and optionally additives comprising, characterized, in that at ⁇ least a portion of one of the insulation system to
  • Duromer curing base resin is a siloxane-containing compound ⁇ tion, which forms a -SiR 2 -0-backbone in the duromer, is.
  • the subject matter of the present invention is an insulation system, for example an insulation system for a rotating electrical machine, in particular a medium or high-voltage machine, which can be produced using the insulation material according to the invention.
  • R stands for all types of organic radicals which are suitable for curing and / or crosslinking to an insulating material which is suitable for an isolation system. ⁇ br/> In particular, 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,
  • 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. -CN, -CNO, -CNS, - N3 (azide) etc.
  • Sulfur-substituted aryls and / or alkyls e.g. Thiophene, but also thiols.
  • the Hückel rule for aromatic compounds refers to the context that planar, cyclic Wegkonjugator molecules comprising a number of ⁇ -electrons, which can be represented in the form of 4n + 2 comprises, have a special sta ⁇ ity, which also is called aromaticity.
  • the resin in addition to the monomer-functionalized and / or oligomeric component functionalized for polymerization, which has a -SiR 2 -O-backbone, the resin also comprises at least one monomeric or oligomeric resin component functionalized for the polymerization a hydrocarbon so (CR 2 -) units comprising backbone.
  • Epoxidfunktionali ⁇ catalyzed components such as bisphenol F diglycidyl ether (BFDGE) or bisphenol A diglycidyl ether (BADGE), polyurethane and mixtures thereof.
  • BFDGE bisphenol F diglycidyl ether
  • BADGE bisphenol A diglycidyl ether
  • 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 -O-backbone, is combined with one or more compounds selected from the group of the following compounds for the base resin:
  • Glycidyl-based and / or epoxy-terminated aryl and / or alkyl siloxanes are suitable as polymerization-functionalized monomeric or oligomeric component having a -SiR 2 -O-backbone.
  • a siloxane such as 1,3-bis (3-glycidyl-oxypropyl) tetramethyldisiloxane, the DGTMS or glycidoxy-terminated phenyl-dimethylsiloxane in monomer and / or in oligomeric form, and in any mixtures and / or in the form of derivatives . It has been shown that at least doubly functionalized siloxane monomers, which can be used for the production of thermosets, are suitable here.
  • suitable cationic and anionic Härtungska gas catalytic converters such as organic salts such as organic ⁇ specific ammonium, sulphonium, iodonium, phosphonium and / or imidazolium salts, and amines, such as tertiary amines, pyrazoles and / or imidazole Links .
  • organic salts such as organic ⁇ specific ammonium, sulphonium, iodonium, phosphonium and / or imidazolium salts
  • amines such as tertiary amines, pyrazoles and / or imidazole Links .
  • 4, 5-dihydroxymethyl-2-phenylimidazole and / or 2-phenyl-4-methyl-5-hydroxymethylimidazole may be mentioned here. But it can also
  • oxirane group-containing compounds such as
  • Glycidyl ether can be used as a hardener.
  • acid anhydrides are also used successfully as hardeners in the insulation materials.
  • their toxicology is no longer quite uncontroversial.
  • the carbon-based curing agent is also to be replaced in whole or in part by siloxane-based hardeners having the same functionalities.
  • the insulating material and / or impregnating resin for a winding tape insulation also includes additives, such as sintering aids, reactive accelerators and / or fillers, which can be used both as nanoparticles. may lie angle and as a filler in the micrometer range before ⁇ .
  • a ratio of -S1R 2 -O return ⁇ grat to (-CR 2 -) backbone, such as 1: 8 to 1: 4 is most favorable, i.e. that in the insulation material concerned, the hydrocarbon-based compounds are present quantitatively 4 to 8 times as the siloxane-based compounds.
  • the proportions are based on the stoichiometry, ie are mole percentages.
  • the siloxane-containing component is thus present in an amount of 10 to 50 mol% in the base resin of the insulating material.
  • the amount of siloxane-containing component in the base resin is not more than 20 mol%, in particular not more than 18 mol% and particularly preferably not more than 15 mol%.
  • the partial discharge resistance of the insulating material is virtually increased by the presence of a certain amount of S1R 2 -O- forming monomers or oligomers in the base resin.
  • Figure 1 shows the comparison of discharge volumes to elekt ⁇ -driven aging at 10 kV. On the x-axis, the proportion of S1R 2 -O- forming compound in the base resin is applied, the zero line is at 100% (-CR 2 -) backbone or backbone-forming base resin.
  • the hardened insulation material was deliberately exposed to electrical discharges. After a certain time, the eroded volumes were scanned by a laser and thus the eroded volume - or Ero ⁇ sion depth - evaluated.
  • the paging parameters were as follows:
  • Bisphenol A diglycidyl ether (BADGE) can be observed through a SiR 2 -0-containing product "Silres®” and / or Silikoftal with an at least two functionalized, glycidoxy-terminated phenyl-dimethylsiloxane monomer, as shown in FIG.
  • substitution of -CR 2 - backbone forming compound be ⁇ acts but in the cured insulation material a deterioration of mechanical properties, so that as little as possible and as much as necessary SUC ⁇ gen of substitution should.
  • the ⁇ form a -CR 2 backbone by corresponding functionalized compounds having a -SiR 2 0 backbone ausbil ⁇ substituted ⁇ .
  • the mechanical properties of the cured insulating material are quite as good as those of the insulating material without compounds that form a -S1R 2 -O- backbone.
  • the resulting glass transition temperatures and the memory modules of the substi tuted ⁇ insulating substance are almost identical with those of the forth ⁇ conventional insulation material without substitutions.
  • the memory modules and derived glass transition temperatures as a function of degree of substitution are epoxy resin component 2 -0 backbone, represented by a, a -SiR from ⁇ -forming compound such as the "Silres®”.
  • the highest glass transition temperature is to be measured at the 25% substitution.
  • an insulation material and / or an impregnating resin for a Wickelbandiso ⁇ -regulation is first introduced, by the presence of compounds in the cured resin constituting 2 -0 backbone a -SiR shows an interpreting ⁇ Lich increased partial discharge resistance.
  • the thickness of the insulation system can be drastically reduced, for example by up to 20%.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

L'invention concerne un matériau d'isolation électrique et/ou une résine d'imprégnation destinée à l'isolation de ruban d'enroulement et un système d'isolation, par exemple un système d'isolation destinée à une machine électrique tournante, en particulier une machine à moyenne ou haute tension. La présente invention propose pour la première fois un matériau d'isolation et/ou une résine d'imprégnation, destinée à l'isolation de ruban d'enroulement, qui présente une résistance à la décharge partielle nettement accrue par la présence de composés dans la résine durcie qui forment un squelette -SiR2-O. En conséquence, l'épaisseur du système d'isolation peut être considérablement réduite par exemple jusqu'à 20 %.
EP18779235.3A 2017-09-20 2018-09-13 Matériau d'isolation électrique et/ou résine d'imprégnation pour l'isolation de ruban d'enroulement d'une machine à moyenne et/ou haute tension et système d'isolation en ce matériau Pending EP3656039A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17192058.0A EP3460959A1 (fr) 2017-09-20 2017-09-20 Matériau électriquement isolant et/ou résine d'imprégnation pour isolation à bande enroulée d'une machine à haute et/ou à moyenne tension ainsi que système d'isolation correspondant
PCT/EP2018/074752 WO2019057601A1 (fr) 2017-09-20 2018-09-13 Matériau d'isolation électrique et/ou résine d'imprégnation pour l'isolation de ruban d'enroulement d'une machine à moyenne et/ou haute tension et système d'isolation en ce matériau

Publications (1)

Publication Number Publication Date
EP3656039A1 true EP3656039A1 (fr) 2020-05-27

Family

ID=59923298

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17192058.0A Withdrawn EP3460959A1 (fr) 2017-09-20 2017-09-20 Matériau électriquement isolant et/ou résine d'imprégnation pour isolation à bande enroulée d'une machine à haute et/ou à moyenne tension ainsi que système d'isolation correspondant
EP18779235.3A Pending EP3656039A1 (fr) 2017-09-20 2018-09-13 Matériau d'isolation électrique et/ou résine d'imprégnation pour l'isolation de ruban d'enroulement d'une machine à moyenne et/ou haute tension et système d'isolation en ce matériau

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP17192058.0A Withdrawn EP3460959A1 (fr) 2017-09-20 2017-09-20 Matériau électriquement isolant et/ou résine d'imprégnation pour isolation à bande enroulée d'une machine à haute et/ou à moyenne tension ainsi que système d'isolation correspondant

Country Status (4)

Country Link
US (1) US20210376681A1 (fr)
EP (2) EP3460959A1 (fr)
CN (1) CN111133661B (fr)
WO (1) WO2019057601A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018202058A1 (de) * 2018-02-09 2019-08-14 Siemens Aktiengesellschaft Formulierung zur Herstellung eines Isolationssystems, elektrische Maschine und Verfahren zur Herstellung eines Isolationssystems
DE102018202061A1 (de) 2018-02-09 2019-08-14 Siemens Aktiengesellschaft Isolation, elektrische Maschine und Verfahren zur Herstellung der Isolation
DE102019209346A1 (de) * 2019-06-27 2020-12-31 Siemens Aktiengesellschaft Imprägnierformulierung, Isolationsmaterial, Verfahren zum Herstellen eines Isolationsmaterials und elektrische Maschine mit einem Isolationsmaterial
DE102022202324A1 (de) * 2022-03-08 2023-09-14 Siemens Aktiengesellschaft Prepreg, Teilleiterisolation und elektrische rotierende Maschine mit Teilleiterisolation

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3576903A (en) * 1968-04-29 1971-04-27 Minnesota Mining & Mfg Epoxy-terminated adducts of carboxy terminated polyesters and polyepoxides
US4082719A (en) * 1976-02-23 1978-04-04 Dow Corning Corporation Silicone epoxy curable compositions
JPS5681906A (en) * 1979-12-07 1981-07-04 Toshiba Corp Heat resisting electrical insulated coil
JPS5917218A (ja) * 1982-07-21 1984-01-28 Toshiba Corp 電気絶縁線輪
US4533713A (en) * 1983-05-06 1985-08-06 Minnesota Mining And Manufacturing Company Fluoroaliphaticsulfonamides containing oxirane groups and/or N-β-hydroxyalkylene groups
US4910050A (en) * 1988-08-04 1990-03-20 Hughes Aircraft Company Method and composition for providing electrostatic discharge protection for spacecraft
EP1172408A1 (fr) * 2000-07-14 2002-01-16 Abb Research Ltd. Masses à couler modifiés par volume à partir de résines de matrices polymèriques
EP1808949B1 (fr) 2006-01-11 2009-09-02 Siemens Aktiengesellschaft Stator pour une machine électrique
GB0803129D0 (en) * 2008-02-21 2008-03-26 Univ Manchester insulating medium and its use in high voltage devices
MA34165B1 (fr) * 2010-04-29 2013-04-03 Huntsman Adv Mat Switzerland Composition durcissable
DE102010019724A1 (de) * 2010-05-07 2011-11-10 Siemens Aktiengesellschaft Elektrisches Isolationsmaterial und Isolationsband für eine elektrische Isolation einer Mittel- und Hochspannung
US8657413B2 (en) * 2011-01-18 2014-02-25 Funai Electric Co., Ltd. Die attach composition for silicon chip placement on a flat substrate having improved thixotropic properties
KR101906644B1 (ko) * 2011-09-05 2018-10-10 나믹스 가부시끼가이샤 도전성 수지 조성물 및 그것을 사용한 경화체
EP3168268B1 (fr) * 2015-11-13 2018-09-26 Schwering & Hasse Elektrodraht GmbH Vernis d'isolation électrique et procédé de fabrication d'un vernis d'isolation électrique

Also Published As

Publication number Publication date
EP3460959A1 (fr) 2019-03-27
CN111133661B (zh) 2023-11-17
CN111133661A (zh) 2020-05-08
WO2019057601A1 (fr) 2019-03-28
US20210376681A1 (en) 2021-12-02

Similar Documents

Publication Publication Date Title
EP3656039A1 (fr) Matériau d'isolation électrique et/ou résine d'imprégnation pour l'isolation de ruban d'enroulement d'une machine à moyenne et/ou haute tension et système d'isolation en ce matériau
US10563007B2 (en) Impregnating resin, conductor arrangement, electrical coil and electrical machine
WO2020094328A1 (fr) Équipement électrique doté d'un système d'isolation, ainsi que procédé pour la production du système d'isolation
WO2019154932A1 (fr) Formulation pour la fabrication d'un système d'isolation, machine électrique et procédé de fabrication d'un système d'isolation
DE102010019724A1 (de) Elektrisches Isolationsmaterial und Isolationsband für eine elektrische Isolation einer Mittel- und Hochspannung
DE102014219844A1 (de) Isolationssystem für elektrische Maschinen
EP3245657A1 (fr) Système d'isolation, utilisations associées ainsi que machine électrique
WO2013117373A1 (fr) Couche isolante autoréparatrice pour une machine électrique
EP4183028A1 (fr) Formulation de revêtement en poudre pour un système d'isolation d'une machine électrique, machine électrique présentant un système d'isolation de ce type et procédé de production d'un système d'isolation de ce type
EP3593361B1 (fr) Bande anti-effluves pour machine électrique haute tension
DE102018202061A1 (de) Isolation, elektrische Maschine und Verfahren zur Herstellung der Isolation
WO2020259963A1 (fr) Formulation d'imprégnation, matériau isolant, procédé de fabrication d'un matériau isolant et machine électrique pourvue d'un matériau isolant
WO2023170112A1 (fr) Isolation de sous-conducteur et composite de sous-conducteur d'une machine tournante électrique
WO2015090935A1 (fr) Composition de résine coulable résistant aux décharges disruptives et au contournement
WO2022175303A1 (fr) Système d'isolation pour machines tournantes électriques et son procédé de production
WO2022096429A1 (fr) Bande de protection anti-effluves d'une machine électrique tournante à haute tension, son utilisation, et machine électrique

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20200221

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20210318

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: INNOMOTICS GMBH