EP0629311B1 - Bobine pour un transformeur haute tension - Google Patents

Bobine pour un transformeur haute tension Download PDF

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Publication number
EP0629311B1
EP0629311B1 EP92906324A EP92906324A EP0629311B1 EP 0629311 B1 EP0629311 B1 EP 0629311B1 EP 92906324 A EP92906324 A EP 92906324A EP 92906324 A EP92906324 A EP 92906324A EP 0629311 B1 EP0629311 B1 EP 0629311B1
Authority
EP
European Patent Office
Prior art keywords
coil
turn
turns
coil according
connection
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.)
Expired - Lifetime
Application number
EP92906324A
Other languages
German (de)
English (en)
Other versions
EP0629311A1 (fr
Inventor
Friedrich Alber
Rudolf Dedelmahr
Siegfried Kromer
Hans Schott
Siegfried Weiss
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
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
Priority to AT92906324T priority Critical patent/ATE139647T1/de
Publication of EP0629311A1 publication Critical patent/EP0629311A1/fr
Application granted granted Critical
Publication of EP0629311B1 publication Critical patent/EP0629311B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01F27/2847—Sheets; Strips
    • H01F27/2852—Construction of conductive connections, of leads
    • 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
    • H01F2027/2857—Coil formed from wound foil conductor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S174/00—Electricity: conductors and insulators
    • Y10S174/13—High voltage cable, e.g. above 10kv, corona prevention
    • Y10S174/14—High voltage cable, e.g. above 10kv, corona prevention having a particular cable application, e.g. winding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S174/00—Electricity: conductors and insulators
    • Y10S174/13—High voltage cable, e.g. above 10kv, corona prevention
    • Y10S174/14—High voltage cable, e.g. above 10kv, corona prevention having a particular cable application, e.g. winding
    • Y10S174/24—High voltage cable, e.g. above 10kv, corona prevention having a particular cable application, e.g. winding in an inductive device, e.g. reactor, electromagnet
    • Y10S174/25—Transformer

Definitions

  • the invention relates to a coil, in particular for a high-voltage transformer, in which a first electrically conductive partial turn is designed as a coil former.
  • a transformer coil is known in which a wire winding is applied to a winding body made of non-magnetic metal.
  • the winding body is designed as a sleeve with an axially continuous slot.
  • the start of the winding of the coil is electrically connected to the winding body, an end projection of the winding body serving as an electrical connection for the beginning of the winding of the coil.
  • This winding arrangement is preferably cast in a casting compound, a second connecting element cast in it being electrically connected to the winding end of the coil.
  • This solution is only suitable for low-power transformers, e.g. for small transformers.
  • a coil according to the preamble of claim 1 is known from DE 27 36 092 A1.
  • the windings are made from stable printed circuit boards, each of which is self-supporting. This type of coil and winding structure is only suitable for such high currents at which the required conductor material is already self-supporting due to a conductor cross section.
  • JP-A-52 068 921 an inner connection part for a winding is known which acts as an intermediate piece in a axial slot of an insulating bobbin is inserted.
  • the invention has for its object to provide a coil that is suitable for use at high powers is. Another object is to provide a means for forming a suitable bobbin.
  • the problem is solved with a coil according to claim 1.
  • a coil according to claim 1 At high powers, namely, high forces arise between the connection elements of the coil, which result in repulsion of the connection elements.
  • the design according to the invention provides a coil in which the coil body and the connection elements form a solid structural unit. In this way, there is no need for a special coil former since the first partial turn is self-supporting.
  • the coil is formed from only a few turns, for example in the case of high-current coils for melting furnaces.
  • connection elements are preferably attached to the windings at the end. This gives the coil a compact design.
  • the turns of the coil can be arranged radially between two connection elements. In this way, there is a favorable mechanical arrangement in which repulsive forces between the connection elements or the diversions can be better controlled.
  • the turns of the coil are advantageously wound from a strip conductor. This ensures uniform force and current distribution across the entire coil width.
  • the first turn of the coil is designed as a cylinder with an axial slot. A non-magnetic material is preferred. An insulating part is inserted into the slot to increase stability. In this way, the mechanical strength of the coil is increased again. An additional increase can be achieved if the insulating piece is toothed or fastened with grooves in the slot.
  • the coil is designed as an undervoltage winding of a transformer.
  • a coil 1 shows a coil 1, in particular a transformer coil, in cross section.
  • Your first electrically conductive turn 3 or partial turn is designed as a coil former.
  • it is made of a mechanically stable, non-magnetic material, for example an aluminum alloy, and is designed as a cylinder with an axial slot 5.
  • an insulating piece 7 is inserted into the axial slot 5. This can, for example, be toothed or inserted into the slot 5 in the manner of a tongue and groove connection.
  • the insulating piece 7 should end flush with the first turn on the side facing the further outer turns.
  • the conductor material for the further turns 11 is electrically connected to the first turn 3.
  • the further turns 11 are surrounded by insulating material 13 and are carried by the first turn 3.
  • the first turn 3 has a connection element 15.
  • a second connection element 17 is fastened to this connection element 15 via an insulating part 25 (see FIGS. 2 and 3). This is electrically connected to the other end of the winding formed by the turns 11 with a second turn 18.
  • the turns 11, 18 are arranged between the two connection elements 15, 17.
  • the coil 1 can consist of only two turns, namely the first and the second.
  • cooling channels 19 are arranged concentrically in sectors. These are formed by inserts 21, which are inserted between the individual turns 11, 18. The transition of the conductor from one turn position to the next takes place between two inserts 21a.
  • the conductor for the further turns 11 can be selected as desired. However, a ribbon conductor is preferably used.
  • the first turn 3 which is designed as a slotted cylinder, on which the turns 11, which are not shown in any more detail, are arranged.
  • the first connection element 15 is electrically connected to the first turn 3.
  • This can be formed, for example, as a rail made of a flat material, which can be welded flat on the face of the first turn 3 or, as shown, flat on the inside of the first turn 3.
  • the insulating part 25 is arranged between the two connection elements 15 and 17. This can be cast with the connection elements 15, 17, for example, or by means of screws 27 be mechanically connected to them.
  • the connection elements 15, 17 have holes for fastening electrical lines.
  • the windings of the coil 1 can also be formed by a plurality of disc coils connected to one another.
  • connection elements 15 and 17 are inserted between the connection elements 15 and 17 at both ends of the coil 1.
  • a mechanically stable structural unit is formed by the connection elements 15 and 17 in connection with the first winding 3 designed as a coil former, which also withstands high repulsive forces.
  • this design also allows the coil to be arranged in a mechanically very stable manner on a transformer core, in particular via further insulating parts. This applies in particular to electrical rejections which are connected to the connection elements 15 and 17.
  • the connection elements 15, 17 serve as support elements for the rejections and for the coil 1 itself.
  • the inserts 21 forming the cooling channels 19 can extend over the entire length of the coil, or, as also shown, can be inserted in sections. With this training there is an increased cooling capacity. To increase the stability of the coil 1, the inserts 21 of the individual layers are each arranged radially one above the other.
  • the coil 1 is preferably used as an undervoltage winding for cast resin transformers. Potting is possible. Small numbers of turns come in particular for the coil less than 20, in particular less than 10 turns, for high currents. This applies, for example, to high-current transformers. Cooling channels are provided for thermal reasons. Compared to previous versions, there is no need for additional space for a coil former or for the rejection of the conductors. Versions with very few turns can be manufactured with improved stability compared to previous versions.
  • the first turn 3 is preferably made axially longer than the subsequent turns 11. As a result, the coil can be supported axially and radially on the transformer core via insulating parts.

Landscapes

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

Abstract

Afin d'améliorer les propriétés mécaniques d'une bobine (1), il est proposé, selon l'invention, de former un premier enroulement (3) conducteur de la bobine (1) pour constituer une armature de bobine qui comprend un premier élément de raccordement (15) auquel est fixé un second élément de raccordement (17) par l'intermédiaire d'une pièce isolante (25). Les deux éléments de raccordement (15, 17) constituent les points de raccordement de la bobine (1). Ce procédé permet de réaliser une structure de bobine autoporteuse. La bobine convient particulièrement bien aux transformateurs à imprégnation intégrale de résine, en tant qu'enroulement basse tension avec de petits nombres d'enroulements.

Claims (11)

  1. Bobine (1), notamment pour un transformateur de courant fort, dans laquelle une première spire (3) conductrice de l'électricité comporte une première pièce (15) de raccordement, à laquelle est fixée, par l'intermédiaire d'une pièce (25) isolante, une seconde pièce (17) de raccordement, qui est reliée électriquement à une seconde spire (18), conductrice de l'électricité et montée de manière à être isolée de la première spire (3), caractérisée en ce que la première spire (3) a la forme d'une carcasse cylindrique de bobine ayant une fente axiale (5), dans laquelle une pièce (7) isolante est insérée, la seconde et éventuellement d'autres spires (11 à 18) étant portées en étant isolées de la première spire (3).
  2. Bobine suivant la revendication 1, dans laquelle les fronts des pièces (15,17) de raccordement sont montés sur les spires (18,3).
  3. Bobine suivant la revendication 2, dans laquelle les spires (3,11,18) sont montées entre les deux pièces (15, 17) de raccordement.
  4. Bobine suivant l'une des revendications 1 ou 3, dans laquelle les spires (11,18) sont enroulées à partir d'un conducteur en bande.
  5. Bobine suivant l'une des revendications 1 à 4, dans laquelle les pièces (16,17) de raccordement servent de pièces porteuses.
  6. Bobine suivant l'une des revendications 1 à 5, dans laquelle des spires (11) concentriques sont séparées l'une de l'autre par des canaux de refroidissement formés par des entretoises.
  7. Bobine suivant l'une des revendications 1 à 6, dans laquelle les spires (3,11,18) font partie d'un enroulement commun.
  8. Bobine suivant l'une des revendications 1 à 7, dans laquelle les enroulements formés des spires (3,11,18) servent d'enroulements de transformateur.
  9. Bobine suivant l'une des revendications 1 à 8, dans laquelle la pièce (7) isolante relie mécaniquement l'un à l'autre en les isolant électriquement, en vue de former une carcasse de bobine, les deux points de la première spire (3) voisins dans la fente axiale.
  10. Bobine suivant la revendication 9, dans laquelle la pièce isolante (7) se termine, afin d'obtenir un bon guidage du conducteur sur son côté tourné vers les autres enroulements extérieurs (11) dans un plan par la première spire (3).
  11. Bobine suivant la revendication 9 ou 10, dans laquelle la pièce isolante (7) et la fente axiale (5) sont dentées de sorte à s'adapter l'une à l'autre ou sont sous la forme d'une liaison rainure-languette.
EP92906324A 1992-03-05 1992-03-05 Bobine pour un transformeur haute tension Expired - Lifetime EP0629311B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT92906324T ATE139647T1 (de) 1992-03-05 1992-03-05 Spule für einen hochspannungstransformator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE1992/000189 WO1993018528A1 (fr) 1992-03-05 1992-03-05 Bobine pour un transformeur haute tension

Publications (2)

Publication Number Publication Date
EP0629311A1 EP0629311A1 (fr) 1994-12-21
EP0629311B1 true EP0629311B1 (fr) 1996-06-19

Family

ID=6874880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92906324A Expired - Lifetime EP0629311B1 (fr) 1992-03-05 1992-03-05 Bobine pour un transformeur haute tension

Country Status (5)

Country Link
US (1) US5598137A (fr)
EP (1) EP0629311B1 (fr)
DE (1) DE59206629D1 (fr)
GR (1) GR3020296T3 (fr)
WO (1) WO1993018528A1 (fr)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1158680C (zh) 1996-05-29 2004-07-21 Abb股份有限公司 变压器/电抗器
SE510192C2 (sv) 1996-05-29 1999-04-26 Asea Brown Boveri Förfarande och kopplingsarrangemang för att minska problem med tredjetonsströmmar som kan uppstå vid generator - och motordrift av växelströmsmaskiner kopplade till trefas distributions- eller transmissionsnät
SE9602079D0 (sv) 1996-05-29 1996-05-29 Asea Brown Boveri Roterande elektriska maskiner med magnetkrets för hög spänning och ett förfarande för tillverkning av densamma
PL330202A1 (en) 1996-05-29 1999-04-26 Asea Brown Boveri Insulated conductor for high-voltage windings and method of making same
ATE250817T1 (de) 1996-05-29 2003-10-15 Abb Ab Leiter für hochspannungswicklungen und rotierende elektrische maschine mit einem solchen leiter
SE515843C2 (sv) 1996-11-04 2001-10-15 Abb Ab Axiell kylning av rotor
SE510422C2 (sv) 1996-11-04 1999-05-25 Asea Brown Boveri Magnetplåtkärna för elektriska maskiner
SE509072C2 (sv) 1996-11-04 1998-11-30 Asea Brown Boveri Anod, anodiseringsprocess, anodiserad tråd och användning av sådan tråd i en elektrisk anordning
SE512917C2 (sv) 1996-11-04 2000-06-05 Abb Ab Förfarande, anordning och kabelförare för lindning av en elektrisk maskin
SE9704427D0 (sv) 1997-02-03 1997-11-28 Asea Brown Boveri Infästningsanordning för elektriska roterande maskiner
SE9704422D0 (sv) 1997-02-03 1997-11-28 Asea Brown Boveri Ändplatta
SE9704421D0 (sv) 1997-02-03 1997-11-28 Asea Brown Boveri Seriekompensering av elektrisk växelströmsmaskin
SE508543C2 (sv) 1997-02-03 1998-10-12 Asea Brown Boveri Hasplingsanordning
SE9704423D0 (sv) 1997-02-03 1997-11-28 Asea Brown Boveri Roterande elektrisk maskin med spolstöd
SE9704431D0 (sv) 1997-02-03 1997-11-28 Asea Brown Boveri Effektreglering av synkronmaskin
SE508544C2 (sv) 1997-02-03 1998-10-12 Asea Brown Boveri Förfarande och anordning för montering av en stator -lindning bestående av en kabel.
AU9362998A (en) 1997-11-28 1999-06-16 Asea Brown Boveri Ab Method and device for controlling the magnetic flux with an auxiliary winding ina rotating high voltage electric alternating current machine
GB2331867A (en) 1997-11-28 1999-06-02 Asea Brown Boveri Power cable termination
US6801421B1 (en) 1998-09-29 2004-10-05 Abb Ab Switchable flux control for high power static electromagnetic devices
US6433663B1 (en) 1999-12-22 2002-08-13 Thomson Licensing Sa High voltage transformer arrangement
SE516442C2 (sv) * 2000-04-28 2002-01-15 Abb Ab Stationär induktionsmaskin och kabel därför
US6972655B2 (en) * 2003-08-04 2005-12-06 Lockheed Martin Corporation Construction for cooled solenoid
CN101458991B (zh) * 2007-12-10 2011-12-07 特变电工股份有限公司 一种变压器的线圈连线结构
DE102008055882A1 (de) * 2008-11-03 2010-05-06 Siemens Aktiengesellschaft Haltevorrichtung für eine Gießharztransformatoren-Wicklung
EP2442322B1 (fr) * 2010-10-15 2012-12-05 ABB Technology AG Module d'isolation de transformateur d'huile
EP2695484B1 (fr) * 2011-04-05 2015-10-14 Comaintel, Inc. Bobine de travail de chauffage par induction
DE102018202663A1 (de) * 2018-02-22 2019-08-22 Zf Friedrichshafen Ag Drossel

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GB640624A (en) * 1947-10-03 1950-07-26 Asea Ab Heavy current windings for electrical apparatus
US2863130A (en) * 1957-03-21 1958-12-02 Gen Electric Coil construction for electromagnetic induction apparatus
DE1102910B (de) * 1957-07-24 1961-03-23 Foster Transformers Ltd Spulenaufbau fuer Transformatoren od. dgl. elektrische Wicklungsanordnungen
GB852909A (en) * 1957-07-24 1960-11-02 Foster Transformers Ltd Improvements in electrical coil windings
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DE2736092A1 (de) * 1977-08-10 1979-02-22 Transformatoren Union Ag Wicklung fuer transformatoren mit zwei windungen fuer sehr hohe elektrische stroeme
JPS55120116A (en) * 1979-03-12 1980-09-16 Toshiba Corp Winding for large current
DE3100419C2 (de) * 1981-01-09 1986-07-17 ANT Nachrichtentechnik GmbH, 7150 Backnang Übertrager hoher Leistungsdichte
JPS58145110A (ja) * 1982-02-23 1983-08-29 Mitsubishi Electric Corp 変圧器巻線
DE3917212A1 (de) * 1989-05-26 1990-11-29 Haug Gmbh & Co Kg Spule fuer transformator, insbesondere hochspannungstransformator

Also Published As

Publication number Publication date
DE59206629D1 (de) 1996-07-25
US5598137A (en) 1997-01-28
EP0629311A1 (fr) 1994-12-21
GR3020296T3 (en) 1996-09-30
WO1993018528A1 (fr) 1993-09-16

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