EP3378074A1 - Ensemble bobinage constitué de parties d'enroulement fixes - Google Patents

Ensemble bobinage constitué de parties d'enroulement fixes

Info

Publication number
EP3378074A1
EP3378074A1 EP16819494.2A EP16819494A EP3378074A1 EP 3378074 A1 EP3378074 A1 EP 3378074A1 EP 16819494 A EP16819494 A EP 16819494A EP 3378074 A1 EP3378074 A1 EP 3378074A1
Authority
EP
European Patent Office
Prior art keywords
winding
arrangement
sections
layers
winding arrangement
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Withdrawn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
EP16819494.2A
Other languages
German (de)
English (en)
Inventor
Richard Sille
Tim-Felix Mai
Steffen Weinert
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 Energy Global GmbH and Co KG
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 EP3378074A1 publication Critical patent/EP3378074A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/323—Insulation between winding turns, between winding layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/327—Encapsulating or impregnating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/122—Insulating between turns or between winding layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/127—Encapsulating or impregnating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2847—Sheets; Strips

Definitions

  • the invention relates to a winding arrangement having a number of vertically stacked winding sections, which are arranged at a distance from each other and electrically connected to form a series circuit, wherein each winding section überei ⁇ nander wound winding layers, which are insulated from each other and having an electrical conductor ,
  • the invention further relates to a method for producing a winding arrangement.
  • the invention further relates to a transformer and a choke with such a winding arrangement.
  • the above-mentioned winding arrangement is known, for example, from EP 2 251 877 B1.
  • the Wicklungsan ⁇ order shown there consists of a series connection of so-called disc windings, which are arranged at a distance from each other.
  • a winding portion of a strip conductor is, for example, wound together with a isolie ⁇ Governing film from the inside out on a forming coil support and by the winding tension at this supported ⁇ th.
  • the prior art winding arrangement has the disadvantage that the winding sections held solely by the winding tension on the carrier can slip so that the elekt ⁇ driven minimum clearances between the windings no longer be observed.
  • the object of the invention is therefore to provide a winding arrangement and a method of the type mentioned, in which slipping of the winding sections is avoided. This object is achieved on the basis of the aforementioned Wick ⁇ lungsan extract in that the winding layers are firmly connected to each other via a ply connecting means.
  • the invention solves this problem in that winding sections are wound by winding winding layers on a winding carrier, wherein the winding layers against each other insulated electrical conductors, the winding layers are firmly connected by a ply connecting means, and each winding section with an insulating material potted and the winding assembly thus formed is heated to cure the insulating material.
  • the winding arrangement according to the invention has winding sections whose winding layers are firmly connected to one another via a layer connecting means.
  • the layer connecting means thus increases the mechanical stability of the Wick ⁇ ment sections. Slippage of the winding layers after winding is therefore avoided within the scope of the invention.
  • As a location connecting means basically any connection ⁇ medium is concerned, that is able to connect to each other on ⁇ lying winding layers effectively with each other, so that the winding layers remain dimensionally stable and will not move ⁇ rule.
  • the ply-bonding agent is a cured resin compound.
  • any resins come into consideration.
  • the resin is applied, for example, in the incompletely cured state or in other words in the B state on both sides of the insulating film. After Wi ⁇ ckeln the winding assembly is cured, for example, by the application of heat.
  • the resin is an epoxy resin.
  • a wound between the conductors of a Wick ⁇ coupling portion insulating film is impregnated with the Lagenverbin ⁇ dung medium or coated.
  • the insulating film may be impregnated or coated at one or, advantageously, at its two sides with the ply bonding agent.
  • the resin compound is configured at least partially punk-shaped.
  • Such a punk-like Verbin ⁇ -making is in the art as "Diamond Dotted" known. It can be quickly and easily produced and has since ⁇ over, a high stability.
  • each resin compound is punctiform.
  • the winding sections are at least partially surrounded by a fixed Wick ⁇ insulation insulator, which consists of a solid Wicklungsisolierstoff.
  • a fixed Wick ⁇ insulation insulator which consists of a solid Wicklungsisolierstoff.
  • the resin composition is applied directly to the Win ⁇ dung isolation.
  • a resin layer is provided.
  • the winding arrangement is equipped with holding means which have at least one holding element which extends in at least between two winding sections arranged side by side.
  • Such a holding ⁇ medium holds the winding sections between it he stretches ⁇ , at a certain distance from each other which is set based on the desired dielectric strength of the winding arrangement.
  • the winding sections are at a high-voltage potential, so that a voltage drops between the winding sections.
  • each retaining element is designed as a flat insert strip.
  • a flat insertion strip can be particularly easily and therefore cost-effectively wound between the winding layers and connected to these during winding of the winding sections.
  • each retaining element consists of a resin reinforced with glass fibers.
  • the resin of the holding member is, for example, the same resin which is used for the Wicklungsisolie ⁇ tion.
  • At least one foot element is provided, which is connected to a winding section and adapted to support the entire winding arrangement.
  • the foot element allows a parking of the blank of the winding assembly and thus a standing casting.
  • each foot element has an insulating material section, which consists of an electrically insulating dilemma.
  • the Isolierstoffabites provides the necessary electrical insulation between the foot end at ground potential and connected to the winding section winding end of Fussele ⁇ Mentes ready.
  • each winding section and each foot member are at least partially surrounded by a winding insulator, which consists of a solid Wicklungsisolierstoff, wherein the coefficient of thermal expansion of the Wicklungsisolier ⁇ substance corresponds to that of Fussisolierstoffs. This prevents cracking in the winding insulator.
  • Each winding section is advantageously circumferentially closed, wherein the winding sections are aligned zueinan ⁇ arranged.
  • the winding arrangement is therefore hollow inside in the context of the invention, so that the inclusion of an undervoltage winding and / or a core leg is made possible.
  • a holding element at the Wi ⁇ ckeln between the winding layers is at least placed so that it extends between at least two winding sections.
  • the winding assembly is preheated after the introduction of the holding elements prior to curing of the insulating material.
  • the prepregs harden, so that a mechanically stable winding arrangement is provided, which can be cast in a standing position without a roll carrier.
  • This makes it possible to form a winding insulation with a wall thicker, in particular, on its inner side, so that higher voltages can be applied to the winding arrangement with the same dimensioning.
  • FIG 1 shows an embodiment of the invention
  • Figure 3 shows a more detailed view of an insulating sheet with ply bonding agent.
  • Figure 1 shows an embodiment of the winding assembly 1 according to the invention in a perspective view. It can be seen that the winding arrangement 1 thus vertically has disk windings 2a, 2b, 2n arranged one above the other in the axial direction, which are connected electrically in series with one another.
  • the disc windings 2a are fixed via holding means to each other and held at a distance zuei ⁇ Nander.
  • the holding means have the holding members 4, which is ⁇ wound in the winding sections 2a, 2b, 2n and are surface connected thereto. Due to the holding means 4, the electrically necessary distances can be maintained.
  • the blank of the winding assembly 1 shown in Figure 1 is completely embedded in a fixed winding insulator, which consists of a suitable winding insulation, for example, a purpose ⁇ moderate casting resin.
  • a suitable winding insulation for example, a purpose ⁇ moderate casting resin.
  • the blank of the coil assembly 1 shown in figure 1 is placed in a mold and then, the pitch supplied to the liquid Wicklungsisolierstoff at ⁇ an epoxy resin containing additives and fillers in liquid form.
  • the curing of the winding insulating material is carried out under heat, so that a fully ⁇ constantly embedded in a fixed winding insulation series circuit of disk windings 2a, 2b, 2n is provided.
  • the coil assembly thus produced then, for example, serves as a high-voltage winding of transformers ⁇ tors.
  • FIG. 2 shows an exemplary embodiment of the method according to the invention, in which the winding arrangement according to FIG. 1 is produced. It can be seen that the disc windings 2a and 2b are wound onto a winding carrier 15. Each disc winding 2a and 2b is composed of winding layers 3, which are wound in the winding from the inside to the outside, thereby increasing each winding section in the radial Rich ⁇ tion. Each winding layer 3 has a strip conductor 7, which is insulated from the strip conductor of the underlying winding layer 3 by an insulating film 6. The insulating film 6 is executed in this embodiment as a prepreg coated on both sides of full-surface layer bonding agent 5.
  • the holding means ⁇ strip from a flat insert consist 4 in a simple manner in the Wickelab ⁇ section 2b and all other winding sections can be wrapped.
  • the flat insert strip 4 consists of a glass fibers which are impregnated with a resin, which is also in the so-called B-state, that is, in other words, not fully cured.
  • the winding assembly 1 is preheated, so that the resin in the B state 5 on the film 6, and also the prepreg 4 hardens and so a mecha ⁇ nisch stable connection is provided both between the film 6 and the metallic strip conductors 7, and between the film 6 and the support member 4 and the strip conductor 7.
  • the winding carrier can be 15, so that a winding carrier-free self-standing Wicklungsanord ⁇ voltage 1, wherein the disc windings 2a, 2b
  • Figure 3 illustrates an embodiment of the layer connecting means 5 according to the invention on a film 6, which has diamond-shaped areas in which resin 5 is applied point-like in the B state.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulating Of Coils (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

Ensemble bobinage avec pied pour scellement vertical L'invention concerne un ensemble bobinage (1) constitué d'un certain nombre de parties d'enroulement (2a, 2b, 2n) agencées les unes au-dessus des autres dans le sens vertical, placées à distance les unes aux autres et reliées électriquement les unes aux autres de manière à former un montage en série, chaque partie d'enroulement (2a, 2b, 2n) comprenant des couches d'enroulement (3) enroulées les unes au-dessus des autres, les couches d'enroulement (3) étant isolées les unes vis-à-vis des autres et comprenant un conducteur électrique. L'invention vise à éviter un glissement des parties d'enroulement dudit ensemble bobinage. A cet effet, les couches d'enroulement (3) sont solidarisées les unes aux autres par l'intermédiaire d'un moyen de liaison de couches (5).
EP16819494.2A 2016-01-15 2016-12-15 Ensemble bobinage constitué de parties d'enroulement fixes Withdrawn EP3378074A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016200477.8A DE102016200477A1 (de) 2016-01-15 2016-01-15 Wicklungsanordnung mit festen Wicklungsabschnitten
PCT/EP2016/081116 WO2017121569A1 (fr) 2016-01-15 2016-12-15 Ensemble bobinage constitué de parties d'enroulement fixes

Publications (1)

Publication Number Publication Date
EP3378074A1 true EP3378074A1 (fr) 2018-09-26

Family

ID=57680234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16819494.2A Withdrawn EP3378074A1 (fr) 2016-01-15 2016-12-15 Ensemble bobinage constitué de parties d'enroulement fixes

Country Status (7)

Country Link
US (1) US20190019619A1 (fr)
EP (1) EP3378074A1 (fr)
CN (1) CN108541330A (fr)
BR (1) BR112018014218A2 (fr)
DE (1) DE102016200477A1 (fr)
RU (1) RU2699075C1 (fr)
WO (1) WO2017121569A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018213661A1 (de) 2018-08-14 2020-02-20 Siemens Aktiengesellschaft Wicklungsanordnung mit Feldglättung und Armierung

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU16773A1 (ru) * 1926-09-11 1930-09-30 и Гальске Сименс Трансформатор высокого напр жени
DE1816127B1 (de) * 1968-12-20 1970-03-12 Matsushita Electric Ind Co Ltd Selbstbindender,oberflaechenisolierter Folienleiter
DE2033734A1 (de) * 1970-07-08 1972-01-20 Transformatoren Union Ag Verfahren zur Fertigung von Wicklungen
DE2051883B2 (de) * 1970-10-22 1976-07-29 Lepper-Dominit Transformatoren Gmbh, 5340 Bad Honnef Wicklung fuer trockentransformatoren und verfahren zu ihrer herstellung
DE2241975A1 (de) * 1972-08-25 1974-03-07 Transformatoren Union Ag Ein- oder mehrlagige aus rechteckfoermigen leitern bestehende transformatorwicklung
US4204087A (en) * 1976-11-22 1980-05-20 Westinghouse Electric Corp. Adhesive coated electrical conductors
DE3429809A1 (de) * 1984-08-13 1986-02-20 Transformatoren Union Ag, 7000 Stuttgart Wicklungsanordnung fuer transformatoren und drosselspulen mit in giessharz vergossenen wicklungen
DE19809572C2 (de) * 1998-03-05 2000-06-21 Siemens Ag Gießharz-Transformator
DE19951709A1 (de) * 1999-10-27 2001-05-03 Alcatel Sa Elektrischer Leiter mit rechteckigem oder quadradischem Querschnitt
DE102004016197A1 (de) * 2004-04-01 2005-10-20 Abb Technology Ag Zuerich Wicklung für einen Transformator oder eine Spule und Verfahren zur Herstellung
US7719397B2 (en) * 2006-07-27 2010-05-18 Abb Technology Ag Disc wound transformer with improved cooling and impulse voltage distribution
DE102007053685A1 (de) * 2007-11-10 2009-05-14 Abb Technology Ag Herstellungsverfahren für eine mehrlagige Transformatorwicklung mit Isolationsschicht
EP2251877B1 (fr) 2009-05-14 2013-03-13 ABB Technology AG Procédé de fabrication d'un enroulement de disque
CN201868200U (zh) * 2010-11-24 2011-06-15 广东海鸿变压器有限公司 立体卷铁心变频调速干式整流变压器三相线圈结构
RU2482564C2 (ru) * 2011-06-07 2013-05-20 Федеральное государственное образовательное учреждение высшего профессионального образования "Кубанский государственный аграрный университет" Трехфазный трансформатор
CN104425112B (zh) * 2013-09-04 2017-01-18 台达电子企业管理（上海）有限公司 变压器

Also Published As

Publication number Publication date
WO2017121569A1 (fr) 2017-07-20
CN108541330A (zh) 2018-09-14
DE102016200477A1 (de) 2017-07-20
RU2699075C1 (ru) 2019-09-03
US20190019619A1 (en) 2019-01-17
BR112018014218A2 (pt) 2018-12-11

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