WO1994007251A1 - Conducteur torsade - Google Patents

Conducteur torsade Download PDF

Info

Publication number
WO1994007251A1
WO1994007251A1 PCT/AT1993/000143 AT9300143W WO9407251A1 WO 1994007251 A1 WO1994007251 A1 WO 1994007251A1 AT 9300143 W AT9300143 W AT 9300143W WO 9407251 A1 WO9407251 A1 WO 9407251A1
Authority
WO
WIPO (PCT)
Prior art keywords
twisted
conductor
spacers
strand conductor
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.)
Ceased
Application number
PCT/AT1993/000143
Other languages
German (de)
English (en)
Inventor
Kurt JÄGERSBERGER
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.)
ASTA Elektrodraht GmbH
Original Assignee
ASTA Eisen Metallwarenerzeugungs GmbH
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 ASTA Eisen Metallwarenerzeugungs GmbH filed Critical ASTA Eisen Metallwarenerzeugungs GmbH
Publication of WO1994007251A1 publication Critical patent/WO1994007251A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H01B7/30—Insulated conductors or cables characterised by their form with arrangements for reducing conductor losses when carrying alternating current, e.g. due to skin effect
    • H01B7/306—Transposed conductors
    • 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
    • H01F27/2823—Wires
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H02K3/14—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots with transposed conductors, e.g. twisted conductors
    • 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
    • H01F27/2823—Wires
    • H01F2027/2838—Wires using transposed wires

Definitions

  • the invention relates to a twisted pair conductor for windings of electrical machines and devices, in particular transformers, which is composed of individual paint-insulated flat partial conductors to form a rectangular cross-section, the partial conductors running obliquely on the two flat sides of the cross-section in the opposite sense and on the narrow sides of the cross-section through a Transfer cranking from one side to the other and the partial conductors arranged one above the other are arranged next to one another.
  • Glass mica coating provided. This covering also served as a cooling channel seal.
  • Wire conductors usually consist of an odd number of coated flat wires made of copper or aluminum, which are stranded or bolted according to a special system. In this process, one conductor at the top and one conductor at the bottom regularly move from one
  • Ladder stack to the other The entire bundle of conductors is provided with a paper insulation that is more or less thick according to the requirements Wrapping paper serves on the one hand as additional insulation in accordance with the dielectric strength to be achieved, and on the other hand is essential for holding the conductor bundle together.
  • an intermediate pressure chip layer is arranged lengthwise between the conductor stacks.
  • spacer plates are now inserted between the turns to form an oil channel for better cooling of the winding.
  • These spacer plates have a thickness of approx. 5 mm. In theory, this thickness could be reduced.
  • this thickness must be selected by the paper insulation enveloping the wire conductor. The paper insulation has the property that it practically detaches from the flat side of the wire conductor and bulges into the cooling channel. It therefore reduces the cross section of the cooling channel. Furthermore, coolant jams occur in the area before and after the spacer plates due to the formation of pockets. So there is bad coolant circulation.
  • a disc coil winding for transformers is known from EP 167 896. Spacer plates are used in this winding for the formation of radial cooling channels. These spacer plates are arranged between the turns and are inserted manually when the winding is being built up. There are also the disadvantages shown above.
  • EP 133 220 discloses an electrical conductor with partial conductor transfer according to Roebel, which is stranded from in particular six partial conductors or elements. These elements are arranged around a square tube in such a way that the square tube serves as the cooling channel.
  • the spacer plates already cited above with their disadvantages had to be used again.
  • the object of the invention is to provide a twisted pair conductor of the type cited at the beginning, which takes account of the needs of machine and device designers and allows a higher utilization of the material while reducing the size.
  • the twisted pair conductor according to the invention is characterized in that spacers consisting of insulating material are arranged on at least one flat side.
  • the winding time is reduced by the twist conductor according to the invention, since the time-consuming insertion of spacer plates for the formation of oil channels between the turns is eliminated during the winding process.
  • the arrangement of these spacers in the course of the manufacture of the twisted pair conductor is simple. After the drill head, a device for adding the spacers is provided. The production speed does not have to be reduced for this measure. In addition, the spacing of the arrangement of the spacers can be freely selected.
  • a covering in the form of a large-meshed glass fabric bandage which is pre-impregnated with partially crosslinked epoxy resin, is provided for fastening the spacers to the wire conductor.
  • a suitable mesh is provided, which on the one hand has the required one
  • the covering is provided only in the area of the spacers.
  • must conventional twisted conductor, even when they are used for low-voltage windings, provided for reasons of bundle cohesiveness with a paper insulation depends on fertiggepreßter winding of the beam geometry by bagging • of the paper between the spacer plates the winding gap and oil passage between the turns decreased.
  • the criterion of this invention is to machine a wire conductor that can be processed efficiently.
  • a sheathing of the twisted pair according to the present invention has the property that after it has hardened, no bulging is possible.
  • the spacers for attachment to the wire conductor are coated on at least one surface with epoxy resin or have a glass fiber fabric pre-impregnated with partially crosslinked epoxy resin.
  • Fig. 1 shows a plan view of the flat side of a twisted pair
  • Fig. 2 shows a plan view of the narrow side
  • Fig. 3 shows a cross section of the twisted pair.
  • the stranded conductor consists of up to approximately 80 partial conductors.
  • the partial conductor is twisted to the twisted conductor, which is done mechanically from the two partial conductor stacks, the uppermost and lowermost partial conductors 2 into the other partial conductor stack, the partial conductors preferably being offset by half the step length.
  • This deformation for the passage of the partial conductor 2 from one partial conductor stack into the other partial conductor stack is the offset 3. After the offset 3 of the partial conductors 2, they run obliquely.
  • the partial conductors 2 have an offset 3, so that the two partial conductor stacks are parallel to one another.
  • An intermediate press-fit layer 4 is arranged between the two partial conductor stacks.
  • Spacers 5 made of insulating material are arranged on at least one flat side of the twist conductor 1.
  • a sheath 6 is provided.
  • This covering 6 is a large-meshed glass fabric bandage pre-impregnated with partially crosslinked epoxy resin and is attached in the area of the spacers 5.
  • the twist conductor 1 has a spacer 5 on a flat side.
  • This spacer 5 is provided on its surface with a glass fiber fabric 7, this glass fiber fabric 7 being pre-impregnated with a partially cross-linked epoxy resin.
  • this stranded conductor 1 results in immense advantages for the production of windings in transformer construction.
  • the overall height of the transformer can be reduced due to the better fill factor.
  • the better fill factor results from the elimination of paper insulation.
  • the thickness of the spacers 5 can also be set smaller than the thickness of the spacer plates, since the paper bulge included in the spacer plates is no longer present.
  • the twisted pair 1 therefore has three obvious advantages.
  • the use reduces the overall height of the transformer with unchanged performance and, on the other hand, one operation, namely the manual insertion of the spacer plates, is omitted.
  • Such a construction will also be described.

Landscapes

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

Abstract

L'invention a pour objet de créer un conducteur torsadé qui tienne compte des besoins des constructeurs de machines et d'appareils et qui permette une meilleure utilisation du matériau en même temps qu'une réduction des dimensions. Comme il est montré dans les figures 1 et 2, les conducteurs élémentaires (2) présentent un coude (3), de manière que les deux empilements de conducteurs élémentaires soient parallèles entre eux. Entre les deux empilements de conducteurs élémentaires est disposé une couche intermédiaire de carton comprimé (4). Sur un côté plat au moins du conducteur torsadé (1) sont disposées des pièces intercalaires (5) en matériau isolant. Pour assurer la cohésion du faisceau de conducteurs élémentaires de manière qu'il forme un conducteur torsadé (1), il est prévu une enveloppe (6). Cette enveloppe (6) est un bandage de fibres de verre à grosses mailles préimprégné avec une résine époxy partiellement réticulée et il est appliqué au niveau de la pièce intercalaire (5). On pourrait naturellement entourer le conducteur torsadé sur toute sa longueur avec un bandage de fibres de verre. L'invention permet d'obtenir pour la première fois un meilleur facteur de bobinage, ce qui permet de réduire la hauteur de la machine électrique ou de l'appareil électrique, et de préférence celle du transformateur. Ce conducteur torsadé objet de l'invention a principalement pour avantage de réduire la durée du bobinage, étant donné qu'on supprime l'opération de longue durée consistant à introduire des plaquettes d'écartement pendant le bobinage pour former des canaux de circulation d'huile entre les enroulements.
PCT/AT1993/000143 1992-09-16 1993-09-15 Conducteur torsade Ceased WO1994007251A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT184092A AT399962B (de) 1992-09-16 1992-09-16 Drilleiter
ATA1840/92 1992-09-16

Publications (1)

Publication Number Publication Date
WO1994007251A1 true WO1994007251A1 (fr) 1994-03-31

Family

ID=3522163

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1993/000143 Ceased WO1994007251A1 (fr) 1992-09-16 1993-09-15 Conducteur torsade

Country Status (3)

Country Link
CN (1) CN1088349A (fr)
AT (1) AT399962B (fr)
WO (1) WO1994007251A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995030991A1 (fr) * 1994-05-10 1995-11-16 Asta Elektrodraht Gmbh Conducteur parallele multiple pour enroulements de moteurs et appareils electriques
WO2009152858A1 (fr) * 2008-06-19 2009-12-23 Siemens Transformers Austria Gmbh & Co Kg Conducteur torsadé pour un enroulement d’une machine électrique
US7655867B2 (en) 2003-09-05 2010-02-02 Siemens Aktiengesellschaft Conductor for liquid-cooled windings
WO2019238558A1 (fr) 2018-06-12 2019-12-19 Asta Elektrodraht Gmbh Conducteur parallèle multiple à plaquettes d'écartement
KR20220011227A (ko) * 2020-01-30 2022-01-27 히타치 에너지 스위처랜드 아게 전자기 유도 장치의 전기 권선을 제조하는 방법 및 도체 구조

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018208414A1 (de) * 2018-05-28 2019-11-28 Thyssenkrupp Ag Verfahren zur Herstellung von Formlitze, Verfahren zur Herstellung eines Elektromotors, sowie Verwendung von Formlitze

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2410458A1 (de) * 1973-03-05 1974-09-19 Fujikura Ltd Gekreuzter elektrischer leiter und verfahren zum herstellen eines solchen leiters
DE2402149A1 (de) * 1974-01-17 1975-07-24 Transformatoren Union Ag Drilleiter zur herstellung von wicklungen fuer transformatoren, drosselspulen und dgl.
DE3425982A1 (de) * 1984-07-11 1986-01-23 Siemens AG, 1000 Berlin und 8000 München Gitterstab einer elektrischen maschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2393037A (en) * 1944-03-11 1946-01-15 Westinghouse Electric Corp Winding special continuous coils
US3183460A (en) * 1960-07-28 1965-05-11 Westinghouse Electric Corp Electrical inductive apparatus having coolant ducts in insulation
EP0133220A3 (fr) * 1983-07-22 1986-02-12 Kabel- und Lackdrahtfabriken GmbH Conducteur électrique
ATE31125T1 (de) * 1984-07-02 1987-12-15 Siemens Ag Scheibenspulenwicklung fuer transformatoren.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2410458A1 (de) * 1973-03-05 1974-09-19 Fujikura Ltd Gekreuzter elektrischer leiter und verfahren zum herstellen eines solchen leiters
DE2402149A1 (de) * 1974-01-17 1975-07-24 Transformatoren Union Ag Drilleiter zur herstellung von wicklungen fuer transformatoren, drosselspulen und dgl.
DE3425982A1 (de) * 1984-07-11 1986-01-23 Siemens AG, 1000 Berlin und 8000 München Gitterstab einer elektrischen maschine

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995030991A1 (fr) * 1994-05-10 1995-11-16 Asta Elektrodraht Gmbh Conducteur parallele multiple pour enroulements de moteurs et appareils electriques
US7655867B2 (en) 2003-09-05 2010-02-02 Siemens Aktiengesellschaft Conductor for liquid-cooled windings
WO2009152858A1 (fr) * 2008-06-19 2009-12-23 Siemens Transformers Austria Gmbh & Co Kg Conducteur torsadé pour un enroulement d’une machine électrique
WO2019238558A1 (fr) 2018-06-12 2019-12-19 Asta Elektrodraht Gmbh Conducteur parallèle multiple à plaquettes d'écartement
CN112534525A (zh) * 2018-06-12 2021-03-19 阿斯塔导线有限公司 具有间隔板的多重平行导体
JP2021528868A (ja) * 2018-06-12 2021-10-21 アスタ・エレクトロドラート・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング スペーサプレートを有する多重並列導体
US11398324B2 (en) 2018-06-12 2022-07-26 Asta Elektrodraht Gmbh Multiple parallel conductor with spacer plates
JP7250120B2 (ja) 2018-06-12 2023-03-31 アスタ・エレクトロドラート・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング スペーサプレートを有する多重並列導体
CN112534525B (zh) * 2018-06-12 2024-02-06 阿斯塔导线有限公司 具有间隔板的多重平行导体
KR20220011227A (ko) * 2020-01-30 2022-01-27 히타치 에너지 스위처랜드 아게 전자기 유도 장치의 전기 권선을 제조하는 방법 및 도체 구조
KR102411469B1 (ko) 2020-01-30 2022-06-22 히타치 에너지 스위처랜드 아게 전자기 유도 장치의 전기 권선을 제조하는 방법 및 도체 구조
US11657961B2 (en) 2020-01-30 2023-05-23 Hitachi Energy Switzerland Ag Method and conductor structure for manufacturing an electric winding of an electromagnetic induction apparatus

Also Published As

Publication number Publication date
ATA184092A (de) 1994-12-15
AT399962B (de) 1995-08-25
CN1088349A (zh) 1994-06-22

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