[go: up one dir, main page]

EP3080898A2 - Bande isolante, utilisation de la bande isolante en tant qu'isolation électrique pour des machines électriques, isolation électrique et procédé servant à fabriquer la bande isolante - Google Patents

Bande isolante, utilisation de la bande isolante en tant qu'isolation électrique pour des machines électriques, isolation électrique et procédé servant à fabriquer la bande isolante

Info

Publication number
EP3080898A2
EP3080898A2 EP15705276.2A EP15705276A EP3080898A2 EP 3080898 A2 EP3080898 A2 EP 3080898A2 EP 15705276 A EP15705276 A EP 15705276A EP 3080898 A2 EP3080898 A2 EP 3080898A2
Authority
EP
European Patent Office
Prior art keywords
tape
insulating
insulation
insulating tape
winding
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Withdrawn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
EP15705276.2A
Other languages
German (de)
English (en)
Inventor
Hermann BÖDINGER
Florian Eder
Steffen Lang
Carsten Schuh
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
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP3080898A2 publication Critical patent/EP3080898A2/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Withdrawn legal-status Critical Current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
    • H02K3/30—Windings characterised by the insulating material
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/10—Applying solid insulation to windings, stators or rotors, e.g. applying insulating tapes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/10—Applying solid insulation to windings, stators or rotors, e.g. applying insulating tapes
    • H02K15/105—Applying solid insulation to windings, stators or rotors, e.g. applying insulating tapes to the windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/12—Impregnating, moulding insulation, 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
    • H02K3/40—Windings characterised by the shape, form or construction of the insulation for high voltage, e.g. affording protection against corona discharges
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/09—Machines characterised by wiring elements other than wires, e.g. bus rings, for connecting the winding terminations

Definitions

  • Insulation tape its use as electrical insulation for electrical machines, electrical insulation and methods for making the insulation tape
  • the invention relates to an insulation tape according to the Oberbe ⁇ handle of the main claim, its use as electrical insulation for electrical, in particular rotating, machines, the electrical insulation and a method for producing the insulation tape.
  • the Iso ⁇ liersystem has the task, electrical conductors, namely wires, coils, rods, sub-conductors, etc., permanently against each other and against the stator core or the environment to iso ⁇ lines.
  • electrical conductors namely wires, coils, rods, sub-conductors, etc.
  • the particles may be oriented to one another and thus attach tight so that a mechanically stressable mica paper forms.
  • the bonding forces resulting from this interaction of the surfaces are directly related to the contact surfaces of adjacent particles. This results thermodynamically due to the interaction of the primary particles by van der Waals forces or hydrogen bonds.
  • a flexible paper which is impregnable by electrical conductors easy to wind and by means of a reaction ⁇ resin, and at the same time has a good barrier to Treeing channels.
  • the particles must have a high resistance to partial discharges, which occur incessantly during operation of the rotating machine. Due to the inorganic structure of the mica, it has inherently a high partial discharge resistance.
  • the mica paper is applied to a further improvement of the mechanical strength on a support made of glass or polyester fabric and finally converted into a composite ⁇ material.
  • This is achieved by the defined Pa ⁇ pier by means of a liquid and the reactive polymer impregnation and curing in a subsequent step.
  • So far Iso ⁇ lierb are known which comprise, for example, a fabric or a mica material, wherein an adhesive connects the two compo ⁇ nents so that a so-called corona protection tape is formed. It is used, among other things, to electrically insulate electrical conductors in high-voltage machines and high-voltage generators.
  • the thermal conductivity of commonly used impregnated with epoxy resins mica paper on glass or polyester fabric as a support material is about 0.2-0.25 W / mK at room temperature.
  • the consequent erge- bende insulating material thus has thermally insulating properties in addition to good electrical characteristics sheep ⁇ th. In operation, therefore, creates a heat accumulation in large rotating machines. Due to the low thermal conductivity of the glazing merisoltechnik the resulting heat in the copper conductor can be given only conditionally to the steel of the stator. This accumulation of heat is especially serious ⁇ imprinted in the generator midsection. In addition, due to inhomogeneities and imperfections in the main insulation local sectionentladungs memorize
  • planar alumina is used as a direct mica replacement.
  • thermally conductive particles in the impregnating resin or in the mica, but all do not get along without the use of mica and therefore always allow only a small increase in the thermal conductivity.
  • Resin mixture are present and penetrate the composite tape.
  • WO 2007/114876 describes a method for producing a strip with highly conductive particles. These are used to back-impregnate a composite tape so that at least 1% of the thermally conductive particles contained in the resin penetrate into the fabric.
  • WO 2008/091489 describes an insulating tape with a multi-layered platelet structure.
  • the insulation here consists of a mixture of mica and Bohrnitrid platelets.
  • US 2012/0009408 describes a pre-impregnated highly heat-conductive mica paper in which a meso-micro-mixture of highly heat-conductive platelets, preferably of boron nitride, are preferably arranged between the fabric and the mica layer.
  • an insulating tape is struck forward in the form ei ⁇ nes composite particles for the electric insulating tape, said electrically insulating plate-like
  • Particles are connected by means of an electrically insulating binder ei ⁇ nem electrical insulation material in the form of an at least partially porous insulating tape and the insulating tape is wound in a trained under tensile force on a winding conductor structure.
  • a winding the insulation strip is carried out by the direct application to the conductor structure.
  • an electrical insulation in particular a main insulation for an electrical machine, in particular a rotating machine, is provided, wherein an inventive insulation tape according to an inventive
  • a method for producing an insulating tape according to the invention is proposed in which the platelet-shaped particles are metal oxide platelets or mica platelets.
  • An inventive isolation band thus consists essentially of the
  • platelet-shaped particles and a binder but is at least partially porous and thus impregnable.
  • an effective increase in the overall thermal conductivity of the electrical insulation is possible, which may be a main insulation in particular. This is due to the serial connection of thermal resistances, particularly in a radial direction, which states that the total thermal conductivity of a main insulation relationship ⁇ as insulation by the largest is located in series thermal resistance is determined.
  • the thermal conductivity is determined exclusively by the plastic layer with the plate-like particles. It can result in a multiple higher thermal conductivity of the total insulation system.
  • the insulating tape for winding already without heat-insulating additives sufficient tensile strength and flexibility have on ⁇ .
  • an insulating paper and from it a tape of the insulating paper as insulating tape can be produced from the electrical insulating material first.
  • the insulating tape can be releasably secured to the winding on a temporary carrier tape.
  • from the electrical insulating material first an insulating paper, from which a band of the insulation paper are produced and this are releasably secured as an insulating tape on the temporary carrier tape.
  • the temporary carrier tape can be separated from the insulation tape after application.
  • the temporary carrier tape can be separated from the isolati ⁇ onsband before application, in particular immediately before application.
  • the temporary carrier tape can be removed continuously during application of the insulation ⁇ band.
  • the insulating tape can be wound offset overlapping on the conductor structure. That is, the insulating tape covered during winding only a portion of the already applied insulation tape.
  • the binder can be removed after the winding of the insulating tape.
  • the insulating tape can be impregnated after winding.
  • the platelet-shaped particles may be metal oxide platelets or mica platelets.
  • the metal oxide platelets may be aluminum oxide platelets.
  • the binder may be polymer-based.
  • the binder may be an epoxidized novolac system.
  • an insulation paper and from this a tape of the insulation paper as the insulation ⁇ band can be generated from the electrical insulating material first.
  • the insulation tape can be placed on a temporary carrier tape ⁇ and releasably secured.
  • the insulation tape may foil cast film drawn as an organic or aqueous slurry ⁇ system to the temporary carrier tape or and dried thereafter.
  • the insulation tape may be prior to winding to a winding tape kon Stammio ⁇ defined.
  • Figure 1 shows an embodiment of a conventional main insulation
  • Figure 2 is another view of the conventional main insulation;
  • Figure 3 shows an embodiment of an inventive
  • Figure 4 shows an embodiment of a Wickeins invention
  • Figure 5 shows an embodiment of an inventive
  • Figure 1 shows an embodiment of a conventional main insulation or main insulation. Between an inner electrode 9 and an outer electrode 11, the forth ⁇ tional main insulation 7 is arranged. This will create ⁇ ge by meh ⁇ eral layers of Al203 / plastic on glass fabric / plastic.
  • Reference numeral 7a denotes a Al203 / plastic layer
  • reference numeral 7b denotes a glass tissue ⁇ be / plastic sheet on which the layer has been applied 7a respectively.
  • several layers 7a and 7b are used to produce the main insulation 7, which results from the winding of the layers 7a and 7b.
  • the tissue / plastic intermediate layers 7b which are provided a magnification ⁇ fication of the total thermal conductivity of the main insulation in the way.
  • the reason for this is the serial connection of thermal resistances, which states that the entire heat ⁇ conductivity of the main insulation is determined by the largest series connected thermal resistance.
  • these are the glass fabric / plastic layers with a thermal conductivity of about 0, 2W / coolant.
  • a fabric-free aluminum ⁇ miniumoxid plastic layer has a many such high thermal conductivity of> 0.8 W / mK.
  • the series connection shown in FIG. 1 would provide a total thermal conductivity of 0.3 to 0.4 W / mK due to the different thermal conductivities of the individual layers.
  • Figure 2 shows an embodiment of a conventional main insulation in which conventional layers are wound on each other.
  • Figure 2 shows a conventional sequence of layers of Al203-plastic layer 7a 7b on a glass tissue ⁇ be / plastic interlayer.
  • Figure 2 shows a Kochlap ⁇ pung of 50% of the wound insulation tape.
  • the thermally poorly conductive glass cloth-plastic layer 7b does not contribute to the improvement of the electric erosion resistance. The reason for this is that forming treeing channels can pass them without extension of the path (as with the platelet-shaped metal oxide) perpendicular to the main insulation.
  • winding the main insulation 7 is usually worked with 50% tape overlap.
  • Figure 3 shows an embodiment of an inventive
  • Insulation in particular main insulation. It is a tissue-free plastic layer with platelet-shaped particles used in the particular ⁇ Al203 particles, wherein a conventional erodible glass fabric / plastic layer 7b is omitted and at the same total coating thickness the erosion resistance the total main insulation is increased. Due to the resulting lengthening of the treeing channels, the average life of the main insulation increases and the probability of failure of the entire generator decreases. In the electrical erosion of the polymeric insulation system, the kinetic energy of the electron avalanche is measure ⁇ giving. This is directly proportional to the amount of material injury ⁇ supply of the plastic insulation and its propagation velocity.
  • This kinetic energy is strength at constant field, which is here present, determined by the Accelerat ⁇ n Drhensfire in a gaseous dielectric, for example in a pore or an already formed erosion channel, ie the way in which the field acts on the electrons, without that an obstacle in the form of a solid slows them down. Due to the changed design of the main insulation 7, these long acceleration paths are now avoided, since all regions of the main insulation 7 are filled with treeing-channel-lengthening, partially-discharge-resistant platelet particles. This delays the spread of erosion damage and in turn increases the life of the insulation 7. In the case of the inventive glass fabric-free winding this erosion weak part is no longer available. The erosion path must be aligned through the
  • FIG. 3 shows an embodiment of an inventive use of an electrical insulation tape according to the invention 1.
  • Fig. 3 shows an insulating tape 1 an alumina ⁇ band, this for the electrical insulation of electrical, especially rotating machines, especially permanent electrical high voltage insulation, in particular between the conductor and ground potential in a groove and winding head, is used as the main insulation 7.
  • FIG. 4 shows an exemplary embodiment of a winding according to the invention. After passing through the strip 3 on a carrier releasably fixed insulation tape 1 by a laminating roll 5, the insulating tape 1 can be wound on the Lei ⁇ ter Modell and separated in front of the carrier tape 3 in the form of a film. FIG. 4 shows how the insulating tape is wound around the conductor structure, for example a conductor structure 9. Similarly, the carrier tape can be wound 3 and used entspre ⁇ accordingly again.
  • the combination In the winding of the isolati ⁇ onsbandes 1 around the conductor structure 9, the combination must iso- lationsband 1 on carrier tape 3 at a machine Wi ⁇ ckeln executed under a mechanical bias having a sufficient tensile strength. Likewise, the combination must be windable and also have a corresponding flexibility. When winding, care must be taken in particular that no air is trapped between the individual windings between the applied foil or the applied insulating tape 1.
  • Fig. 5 shows an embodiment of an inventive method of manufacturing an insulating belt 1 with ranging from ⁇ flexibility for winding, wherein a sufficient tensile strength ge means of a carrier belt 3 is temporarily create ⁇ .
  • a first step Sl a Erzeu ⁇ gene of a green insulating tape 1 by means of film casting or film pulling an organic or aqueous slip casting system 3.
  • S on a mechanical stability to the Wi ⁇ ckeln-providing carrier tape takes place, a
  • a drying can be carried out.
  • a third step S3 is a packaging to a winding tape.
  • a step S1 involves mixing a dispersion of platelet-shaped particles, a carrier fluid and a functionalizing agent which is distributed in the carrier fluid and has a mass fraction in the dispersion which corresponds to a predetermined mass ratio based on the mass fraction of the particles; producing a sediment by sedimentation of the dispersion, whereby the
  • platelet-shaped particles are arranged substantially layer-like plane-parallel in the sediment and removing the carrier fluid from the sediment.
  • energy is then introduced into the sediment to overcome the activation energy of the chemical reaction of the functionalizing agent with the particles, which forms the particle composite by coupling the particles via the functionalizing agent from the sediment, the mass ratio being predetermined in this way in that the particle composite has a porous structure.
  • an insulation tape 1 according to the invention for example, alumina or mica flakes and an epoxidized novolac system can thus a tape casting or a sheet pulling starting from an organic or aqueous slurry system at a represent the mechanical stability to the winding securely stel ⁇ lumbar support belt.
  • Fig. 6 shows an embodiment of an inventive use of an insulating tape according to the invention 1. It is in a winding W of the insulating tape 1 on an electrical conductor under a mechanical bias parallel to a continuous stripping Ab the transient ⁇ rising carrier tape 3 of the still green insulating tape 1 executed immediately after a stepwise application of the green insulating tape 1 on a conductor pattern. On the to insulating conductor structure now remains a winding of the still green insulating tape 1. It can then follow a step E debindering the winding of the green insulating tape. Finally, impregnation I of the winding of the green insulating tape can be carried out.
  • the carrier tape 3 can be withdrawn continuously from this immediately after a successive application of the insulating tape 1 on the conductor ⁇ structure 9. It finds only de facto a winding of the actual
  • the resulting green film strip can optionally be debinded after the winding in order to increase the proportion of open and thus impregnable porosity in the material.
  • a molded film strip may be referred to as a green film strip which, after debindering, may be called a brown film strip.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulating Bodies (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Organic Insulating Materials (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne une bande isolante (1) se présentant sous la forme d'un composite de particules pour une bande isolante électrique ; elle concerne également son utilisation en tant qu'isolation, l'isolation et la fabrication de la bande isolante (1). Des particules en forme de petites plaques, à isolation électrique sont assemblées au moyen d'un liant à isolation électrique pour former un matériau isolant électrique se présentant sous la forme d'une bande isolante (1) au moins en partie poreuse. Selon l'invention, la bande isolante (1) est enroulable sur une structure conductrice (9, 11) lors d'un enroulement réalisé sous l'action d'une force de traction, et ce sans ajouter un matériau bloquant en supplément un flux de chaleur. L'avantage de l'invention par rapport à l'état de la technique réside dans l'amélioration de la conductivité thermique servant à éviter une accumulation de chaleur et des pannes totales notamment des systèmes d'isolation principaux (7).
EP15705276.2A 2014-03-11 2015-02-13 Bande isolante, utilisation de la bande isolante en tant qu'isolation électrique pour des machines électriques, isolation électrique et procédé servant à fabriquer la bande isolante Withdrawn EP3080898A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014204416.2A DE102014204416A1 (de) 2014-03-11 2014-03-11 Isolationsband, dessen Verwendung als elektrische Isolation für elektrische Maschinen, die elektrische Isolation und Verfahren zur Herstellung des Isolationsbandes
PCT/EP2015/053084 WO2015135719A2 (fr) 2014-03-11 2015-02-13 Bande isolante, utilisation de la bande isolante en tant qu'isolation électrique pour des machines électriques, isolation électrique et procédé servant à fabriquer la bande isolante

Publications (1)

Publication Number Publication Date
EP3080898A2 true EP3080898A2 (fr) 2016-10-19

Family

ID=52484476

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15705276.2A Withdrawn EP3080898A2 (fr) 2014-03-11 2015-02-13 Bande isolante, utilisation de la bande isolante en tant qu'isolation électrique pour des machines électriques, isolation électrique et procédé servant à fabriquer la bande isolante

Country Status (6)

Country Link
US (1) US20170077775A1 (fr)
EP (1) EP3080898A2 (fr)
JP (1) JP2017516437A (fr)
CN (1) CN106104981A (fr)
DE (1) DE102014204416A1 (fr)
WO (1) WO2015135719A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110120557B (zh) * 2018-02-05 2021-01-15 宁德新能源科技有限公司 保护装置及电池

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1135514B (it) * 1981-02-18 1986-08-27 Pirelli Cavi Spa Cavo elettrico
JPS60237828A (ja) * 1984-05-11 1985-11-26 Toshiba Corp 回転電機コイル
DE4244298C2 (de) * 1992-12-28 2003-02-27 Alstom Isolierband und Verfahren zu seiner Herstellung
JP2570210B2 (ja) * 1995-05-29 1997-01-08 株式会社日立製作所 プリプレグ
JP2000116047A (ja) * 1998-09-29 2000-04-21 Hitachi Ltd 高熱伝導絶縁コイル及びこのコイルを用いた回転電機装置
JP3843967B2 (ja) * 2003-06-11 2006-11-08 三菱電機株式会社 絶縁コイルの製造方法
US7135639B2 (en) * 2003-09-05 2006-11-14 Siemens Power Generation, Inc. Integral slip layer for insulating tape
US20080050580A1 (en) 2004-06-15 2008-02-28 Stevens Gary C High Thermal Conductivity Mica Paper Tape
US7776392B2 (en) 2005-04-15 2010-08-17 Siemens Energy, Inc. Composite insulation tape with loaded HTC materials
US7553438B2 (en) 2004-06-15 2009-06-30 Siemens Energy, Inc. Compression of resin impregnated insulating tapes
US7268293B2 (en) * 2004-06-15 2007-09-11 Siemen Power Generation, Inc. Surface coating of lapped insulation tape
DE102004034550A1 (de) 2004-07-16 2006-02-09 Siemens Ag Glimmschutzband
US7846853B2 (en) 2005-04-15 2010-12-07 Siemens Energy, Inc. Multi-layered platelet structure
US20070026221A1 (en) * 2005-06-14 2007-02-01 Siemens Power Generation, Inc. Morphological forms of fillers for electrical insulation
JP4996086B2 (ja) * 2005-09-29 2012-08-08 株式会社東芝 マイカテープおよびこのマイカテープを用いた回転電機コイル
US7812260B2 (en) * 2007-09-25 2010-10-12 Siemens Energy, Inc. Electrical insulation tape with controlled bonding and resin impregnation properties
CN101423669A (zh) * 2008-12-04 2009-05-06 浙江工业大学 一种用于发热电缆的绝缘导热材料
DE102010019603A1 (de) 2010-05-05 2011-11-10 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Federspeicherbremszylinder mit innerhalb der Speicherfeder angeordnetem Elektromotor
DE102010019721A1 (de) * 2010-05-07 2011-11-10 Siemens Aktiengesellschaft Elektrisches Isoliermaterial, Isolationspapier und Isolationsband für eine Hochspannungsrotationsmaschine
EP2520619A1 (fr) * 2011-05-05 2012-11-07 Siemens Aktiengesellschaft Procédé de fabrication d'un composite en particules poreux pour un papier d'isolation électrique

Also Published As

Publication number Publication date
WO2015135719A3 (fr) 2015-10-29
US20170077775A1 (en) 2017-03-16
CN106104981A (zh) 2016-11-09
WO2015135719A2 (fr) 2015-09-17
JP2017516437A (ja) 2017-06-15
DE102014204416A1 (de) 2015-09-17

Similar Documents

Publication Publication Date Title
DE3784008T2 (de) Spule fuer elektrische maschinen und verfahren zur herstellung der spule.
WO1991001059A1 (fr) Agencement d'enroulements conducteurs pour un gros moteur electrique
DE69634941T2 (de) Film mit hoher koronabeständigkeit, sowie isolierter elektrischer draht, spule und motor, die diesem film als insulationsmaterial benutzen
DE2261686A1 (de) Bandagierband fuer elektrische leiter
DE1028217B (de) Verfahren zur Herstellung und zum Einbau von isolierten Spulen elektrischer Maschinen
WO2019227115A1 (fr) Stator muni d'une couche isolante
WO2013011047A1 (fr) Procédé de fabrication d'une bande pour un système d'isolation électrique
EP3078033B1 (fr) Papier anti-effluves conducteur, destiné notamment à la protection anti-effluves extérieure
WO2013167327A1 (fr) Matériau pour bande isolante et procédé de fabrication et d'utilisation de ladite bande
WO2012013543A2 (fr) Système isolant à résistance aux décharges partielles améliorée
DE102021201666A1 (de) Nutisolationssystem für eine elektrische rotierende Maschine, Verfahren zur Herstellung eines Nutisolationssystems
DE102012205650A1 (de) Isolierstoff für rotierende Maschinen
WO2004059819A1 (fr) Element d'isolement elastique extrude de conducteurs de machines electriques
EP1305867A1 (fr) Enroulements de machines electriques comprenant des conducteurs constitues de fils toronnes
EP3080898A2 (fr) Bande isolante, utilisation de la bande isolante en tant qu'isolation électrique pour des machines électriques, isolation électrique et procédé servant à fabriquer la bande isolante
WO2014114472A1 (fr) Ensemble d'isolation pour une machine haute tension
EP3151248A1 (fr) Systeme d'isolation pour une machine electrique
EP4199006A1 (fr) Système d'isolation, utilisation d'un mélange de polymères et machine électrique pourvue de système d'isolation
DE102021210974A1 (de) Elektrische Maschine und Verfahren zum Einlegen von zumindest einem elektrischen Leiterverbund in zumindest eine Nut eines Stators oder Rotors für eine elektrische Maschine
EP1952407B1 (fr) Isolation renforcée en mica
EP3607564B1 (fr) Bande d'isolation électrique, machine électrique haute tension et procédé de fabrication d'une bande d'isolation électrique et machine électrique haute tension
DE102020208760A1 (de) Isolationssystem aus festem Isolationsstoff und Imprägnierharz
EP4447283A1 (fr) Système d'isolation
DE102023210894A1 (de) Wicklung für eine elektrische Maschine
EP2632973B1 (fr) Precurseur de materiau isolant et materiau isolant

Legal Events

Date Code Title Description
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

17P Request for examination filed

Effective date: 20160714

AK Designated contracting states

Kind code of ref document: A2

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

DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20180901