EP3391385A1 - Fester isolationswerkstoff, verwendung dazu und damit hergestelltes isolationssystem - Google Patents

Fester isolationswerkstoff, verwendung dazu und damit hergestelltes isolationssystem

Info

Publication number
EP3391385A1
EP3391385A1 EP17707771.6A EP17707771A EP3391385A1 EP 3391385 A1 EP3391385 A1 EP 3391385A1 EP 17707771 A EP17707771 A EP 17707771A EP 3391385 A1 EP3391385 A1 EP 3391385A1
Authority
EP
European Patent Office
Prior art keywords
cas
material according
insulating material
curing catalyst
insulation 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.)
Withdrawn
Application number
EP17707771.6A
Other languages
German (de)
English (en)
French (fr)
Inventor
Jürgen Huber
Dieter Schirm
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.)
Flender 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 EP3391385A1 publication Critical patent/EP3391385A1/de
Withdrawn legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/21—Paper; Textile fabrics
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • 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
    • H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/04—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances mica
    • 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
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/10—Applying solid insulation to windings, stators or rotors
    • H02K15/105—Applying solid insulation to windings, stators or rotors to the windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
    • 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
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/206—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/10—Mica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/04—Insulators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • 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
    • C08G59/182—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 using pre-adducts of epoxy compounds with curing agents
    • C08G59/184—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 using pre-adducts of epoxy compounds with curing agents with amines
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/10—Presence of inorganic materials
    • C09J2400/12—Ceramic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/10—Presence of inorganic materials
    • C09J2400/14—Glass
    • C09J2400/143—Glass in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/20—Presence of organic materials
    • C09J2400/28—Presence of paper
    • C09J2400/283—Presence of paper in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2463/00—Presence of epoxy resin
    • 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
    • H01B3/002—Inhomogeneous material in general
    • 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
    • H01B3/008—Other insulating material
    • 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
    • H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
    • 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
    • H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
    • H01B3/50—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials fabric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation

Definitions

  • the invention relates to a solid, in particular band-shaped insulating material, its use in a Vakuumim Weggnierbacter and an insulation ⁇ system prepared therewith and an electrical machine with the Isolationsssys- tem, especially for the medium and high voltage range, namely for medium and high voltage machines, in particular rotating electrical machines in the medium and high tension ⁇ voltage range and semi-finished products for electrical switchgear.
  • Electrical machines (motors, generators) have in the
  • stator core specially ge ⁇ arted coil windings or conductor bars, usually made of copper or other, highly conductive, material.
  • a round propagating magnetic field is generated by time-selective energizing, which in the bore of the stator suspended and free-rotating rotor which, for example, due to a large number of applied permanent magnet reacts to the induced magnetic field in the form of forced rotation, drives and so electrical energy into kinetic energy umwan ⁇ delt.
  • the laminated core is electrically grounded, while the coils are at a high kilovolt potential.
  • each coil for example, with a special band, such as mica tape, multiple and defined-overlapped isolated.
  • Mica is preferred because it can as particle-, in particular as platelet-shaped inorganic barrier material, the electrical erosion under electrical sectionentla ⁇ decisions effectively and long, for example via the TOTAL ⁇ te life of the machine to retard and good chemical and thermal resistance.
  • ⁇ mica tapes made from mica paper and one or more carriers, such as fabric, film (s) which are connected together by a tape adhesive. Mica tapes are necessary since mica paper alone does not have the mechanical strength necessary for an insulation process.
  • the tape adhesive additives may be added, for example curing catalysts, which act initiating the thermal cure ei ⁇ nes externally applied impregnant after the insulated with mica tape reels are fitted into the St Sblechpa ⁇ kete and electrically connected becomes the Ver ⁇ avoidance of Partial discharges during later operation eliminates the air in the cavities of the windings and in particular in the groove gaps of the stator core. Since this distance from the current-carrying, insulated coil to the laminated core is generally kept as small as possible, field strengths of several kV / mm are not uncommon. Accordingly, the insulation material is claimed.
  • impregnating agents according to the prior art have thermally curable epoxy / Anhydridgemische for
  • VPI vacuum pressure impregnation
  • the curing catalyst has the function that the low-viscosity impregnating agent, usually made of epoxy resin and phthalic anhydride, gels at a given temperature in a certain time.
  • the low-viscosity impregnating agent usually made of epoxy resin and phthalic anhydride
  • the curing catalyst is usually at least in the solid insulating material, eg mica tape included. This mica tape is held together over the tape adhesive, so it is essential that the tape adhesive and the curing catalyst are mutually inert.
  • Impregnating react with each other only at the moment of the meeting during the VPI process. This achieves the best possible networking as well as the connection, compatibility and freedom from voids of the insulation, which in turn leads to an optimized service life of the "main insulation" of the electrical machine resulting from hardening.
  • Epoxy-based impregnants find use, which are polymerized using curing catalysts.
  • the new curing catalysts will be tailored to the anhydride-free impregnants. It will be strengthened
  • the object of the invention is therefore to provide a solid insulating material with a curing catalyst, which overcomes the disadvantages of the prior art.
  • Vacuum impregnation method and finally to provide an electrical machine with an insulation system thus prepared, wherein an insert of the respiratory sensitizer
  • Phthalic anhydrides and / or organic acid anhydrides is generally avoided.
  • the subject of the present invention is a solid insulating material, which is used together with an anhydride impregnating agent for producing an insulation system in a Vakuumim Weggnier Anlagen, this comprises a support, a barrier material, a Härtungskataly ⁇ sator and a tape adhesive, the curing catalyst and the tape adhesive to each other inert are, but under the conditions of vacuum impregnation with anhydride-free impregnating agent with gel times of 1 h to 15 h at
  • the curing catalyst is obtainable by a reaction of at least one 1H-imidazole and / or lH-imidazole derivative with a
  • Oxirane group-containing compound Furthermore, the use of the insulation system thus produced in electrical machines, preferably in rotating electrical machines, particularly preferably in rotating electrical machines in the medium and high voltage range and in electrical switchgear, medium and high voltage applications, bushings, transformer bushings, generator bushings and / or HVDC -Durch Installationen, as well as in corresponding semi-finished objects of the invention.
  • electrical machines preferably ro- animal electrical machines, particularly preferably rotate ⁇ de electrical machines of medium and high voltage range as well as electrical switchgear, medium and high voltage applications, bushings, transformer bushings, generator bushings and / or HVDC bushings and corresponding end Semi-finished products that form such an insulation system ⁇ , subject of the invention.
  • the curing catalyst is obtainable by a reaction of at least one 1H-imidazole and / or 2-imidazole derivative with a compound containing oxirane groups, it can also be prepared by any other synthetic routes.
  • the curing catalyst is for example only the adduct of a nH-imidazole and / or lH-imidazole derivative with an oxirane-containing compound.
  • the curing catalyst for example, an adduct of a lH-imidazole and / or ⁇ -imidazole derivative with a
  • Oxirane group-containing compound is a nitrogen density D in the range, for example, 1 to 15 mmol / g, in particular D is in the range of
  • the mass-specific, polymerizable molar nitrogen density D mentioned here is defined by the unit 10 -3 mol / g (corresponding to one thousandth of a mole per gram), which indicates the content of nitrogen atoms with non-aromatic and nonbonding electron pairs per molecule ,
  • a curing catalyst which is an adduct of an 1H-imidazole and / or 1H-imidazole derivative with an oxirane-containing compound, it is possible to provide a curing catalyst in binder-containing mica papers which is modifiable in such a way, that it becomes vacuum stable at temperatures of 50-80 ° C.
  • a curing catalyst shows a vapor pressure lower than 10 -4 mbar at 70 ° C, and a geeig ⁇ designated, dynamic viscosity.
  • the curing catalyst exhibits a dynamic viscosity in the range from 1 to 10 000 Pa.s, in particular from 5 to 5000 Pa.s and particularly preferably in the range from 10 to 3000 Pa.s.
  • the curing catalyst exhibits a vapor pressure
  • Impregnation temperature less than 10 _1 mbar especially at 70 ° C in the range of 10 ⁇ 2 mbar to 10 ⁇ 8 mbar, preferably from 10 -3 mbar to 10 ⁇ 7 mbar and in particular from 10 ⁇ 4 mbar to 10 ⁇ 6 mbar.
  • Oxirane group-containing compound is preferably obtained via an addition reaction, as shown schematically below:
  • Reaction Equation I Imidazole Derivative Addition Reaction
  • n 1-4
  • R 1 , R 2 , R 3 hydrogen, alkyl and / or aryl
  • R is the remainder of the molecule
  • Oxirane group-containing compound so for example a GlycidyleduktVeritati.
  • Oxirane group-containing compound so for example the GlycidyleduktVeritati.
  • oxirane-containing starting materials are shown in the rows, and exemplary 1H-imidazoles and / or 1H-imidazole derivatives are shown in the columns: In particular, the abbreviations in the case of column labeling
  • compounds containing oxirane groups are used, for example, glycidyl ether and / or glycidyl ester compounds.
  • Exemplary compounds are listed in the following table, wherein always ester derivatives and / or Other pe ⁇ ge obvious to those skilled derivatives of the here mentioned by way of example ⁇ oxirane groups are provided by compounds of the scope of the invention.
  • Bisphenol A diglycidyl ether led to gelation and anionic hardening at 70 ° C.
  • Methylimidazole adduct method, wherein the distilled bisphenol F-diglycidyl ether was also pre-dissolved in toluene.
  • tape adhesive is in the presence of said adducts of lH-imidazole and / or lH-imidazole derivatives with
  • Trimethylolpropane (CAS No. 77-99-6),
  • Polycaprolactone tetrols (CAS No. 35484-93-6) may be used.
  • the tape adhesive connects the at least one carrier and the barrier material in the solid insulating material. It is contained in the solid insulating material in an amount in the range of 1 to 30% by weight, preferably 2 to 15% by weight, particularly preferably 5 to 10% by weight.
  • the carrier in the form of woven, such as glass fiber cloth, non-woven ( "non-woven"), such as non-woven, in particular a polyester fleece, Pa ⁇ pier and / or film before.
  • the carrier may be in form of a sheet also be perforated.
  • this carrier is in the solid insulating material of the preferably particulate
  • the barrier material is preferably at least partially platelet-shaped.
  • mica can be used as a barrier material.
  • a coated particulate barrier material is used.
  • it may be a metal oxide coated
  • particulate barrier material for example, tin, zinc, titanium oxide coated particles act.
  • it is a doped coating of the particulate, in particular platelet-shaped barrier material is.
  • the tape adhesive connects the at least one carrier and the barrier material in the solid insulating material. It is contained in the solid insulating material in an amount in the range of 1 to 30% by weight, preferably 2 to 15% by weight, particularly preferably 5 to 10% by weight.
  • the curing catalyst also called “belt curing catalyst or” belt accelerator ", in the solid insulating material in a concentration less than 10% by weight, for example from 0.001% to 7.5% by weight, preferably in the range of 0 , 01 to 5 wt%, more preferably from 0.1 wt% to 3.5 wt%, before, so that gel times of several hours can be realized.
  • the curing catalyst initiates the polymerization of the
  • Impregnating resin at temperatures in the range of 20 ° C to 100 ° C, preferably from 50 ° C to 80 ° C and particularly preferably from 55 ° C to 75 ° C.
  • the curing catalyst is relatively inert to the tape adhesive material. This especially under the conditions of Vakuumvorhalte- and / or
  • Impregnation temperature for example, in the range between 20 ° C and 100 ° C, in particular between 50 ° C to 80 ° C, most preferably between 55 ° C to 75 ° C.
  • Suitable as a bank adhesive for example, are diols, triols and / or polyols.
  • the invention relates to a solid, in particular band-shaped insulating material, its use in a
  • the solid insulation material and the insulation system produced therewith are characterized in that it
  • the curing catalyst is, for example, an adduct of an lH-imidazole and / or 1H-imidazole derivative with an oxirane-containing compound.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Inorganic Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Organic Insulating Materials (AREA)
  • Insulating Bodies (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
EP17707771.6A 2016-03-09 2017-02-08 Fester isolationswerkstoff, verwendung dazu und damit hergestelltes isolationssystem Withdrawn EP3391385A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016203867.2A DE102016203867A1 (de) 2016-03-09 2016-03-09 Fester Isolationswerkstoff, Verwendung dazu und damit hergestelltes Isolationssystem
PCT/EP2017/052721 WO2017153113A1 (de) 2016-03-09 2017-02-08 Fester isolationswerkstoff, verwendung dazu und damit hergestelltes isolationssystem

Publications (1)

Publication Number Publication Date
EP3391385A1 true EP3391385A1 (de) 2018-10-24

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EP17707771.6A Withdrawn EP3391385A1 (de) 2016-03-09 2017-02-08 Fester isolationswerkstoff, verwendung dazu und damit hergestelltes isolationssystem

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US (1) US10778058B2 (ja)
EP (1) EP3391385A1 (ja)
JP (1) JP6893599B2 (ja)
CN (1) CN108780675B (ja)
BR (1) BR112018067378A2 (ja)
DE (1) DE102016203867A1 (ja)
RU (1) RU2018132040A (ja)
WO (1) WO2017153113A1 (ja)

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DE102015213815A1 (de) * 2015-07-17 2017-01-19 Siemens Aktiengesellschaft Fester Isolationswerkstoff, Verwendung dazu und damit hergestelltes Isolationssystem
DE102016203867A1 (de) 2016-03-09 2017-09-14 Siemens Aktiengesellschaft Fester Isolationswerkstoff, Verwendung dazu und damit hergestelltes Isolationssystem
DE102019207771A1 (de) 2019-05-28 2020-12-03 Siemens Aktiengesellschaft Additiv, Verwendung dazu, Isolationssystem und elektrische Maschine
EP4003954A1 (de) 2019-09-04 2022-06-01 Siemens Aktiengesellschaft Bandbeschleuniger und verwendung davon, fester isolationswerkstoff und anhydrid-freies isolationssystem

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DE102016203867A1 (de) 2017-09-14
US10778058B2 (en) 2020-09-15
RU2018132040A3 (ja) 2020-04-09
BR112018067378A2 (pt) 2019-01-15
US20190089217A1 (en) 2019-03-21
CN108780675A (zh) 2018-11-09
RU2018132040A (ru) 2020-04-09
WO2017153113A1 (de) 2017-09-14
JP6893599B2 (ja) 2021-06-23
CN108780675B (zh) 2021-01-22

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