EP2255366B1 - Transformateur biphasé ou polyiphasé - Google Patents

Transformateur biphasé ou polyiphasé Download PDF

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Publication number
EP2255366B1
EP2255366B1 EP09712840A EP09712840A EP2255366B1 EP 2255366 B1 EP2255366 B1 EP 2255366B1 EP 09712840 A EP09712840 A EP 09712840A EP 09712840 A EP09712840 A EP 09712840A EP 2255366 B1 EP2255366 B1 EP 2255366B1
Authority
EP
European Patent Office
Prior art keywords
coil
depression
transformer according
projection
supporting blocks
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.)
Active
Application number
EP09712840A
Other languages
German (de)
English (en)
Other versions
EP2255366A1 (fr
Inventor
Karl-Heinz Zillmann
Wolfgang Mönig
Benjamin Weber
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.)
ABB Technology AG
Original Assignee
ABB Technology 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 ABB Technology AG filed Critical ABB Technology AG
Publication of EP2255366A1 publication Critical patent/EP2255366A1/fr
Application granted granted Critical
Publication of EP2255366B1 publication Critical patent/EP2255366B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01F27/30—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
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/38—Instruments transformers for polyphase AC

Definitions

  • the invention relates to a two- or multi-phase transformer according to the preamble of claim 1.
  • the invention particularly relates to dry type transformers or cast resin / Resibloc transformers with corresponding coil supports.
  • These coil supports are usually made of plastic, which are arranged below and / or above the coil. They have the main task of carrying the weight of the spool; In addition, measures must be taken to produce a Kriechwegverinrung, which is achieved by glued between items of Spulenabstützungen plates.
  • a cast resin transformer with an insulating support block is known. The latter has a cylindrical shell with outer ribs, in which a plurality of electrically interconnected capacitor elements and a corresponding number of electrically conductive Abschimplatten are arranged alternately one above the other.
  • the object of the invention is to provide a transformer in which the coil is supported by as few support blocks, the generation of a sufficiently long creepage path is simplified.
  • At least two support blocks for each coil can be placed on each bearing surface, which are coated on the coil-side support surface with elastic compensation elements and at their perpendicular to the support surface extending longitudinal side surfaces have at least one creepage extending bar in the longitudinal direction and parallel to the support surface of the support block run.
  • a support block which can be produced, for example, in a so-called pultrusion process and in which due to the choice of shape a Kriechwegverinrung is provided from the outset on the longitudinal side surfaces of the support blocks.
  • It can have at least one support block at its end faces at least one in the direction of the support surface and parallel introduced slot, which also serves to extend the creepage path or distance or serve.
  • the at least one slot can be mounted outside the region of the strips.
  • At least one of the support blocks may be hollow. As a result, a reduction in the amount of required insulating material is achieved; the support block is thereby lighter and due to the inner cavity and stress cracks during curing are avoided.
  • the at least one hollow support block may have at least two, preferably three strips, corresponding to the required length of the creepage distance.
  • the strand produced in the pultrusion process is shortened, wherein the support block is simply cut to length at the desired length of a long profile.
  • the height of the support blocks may be different; For example, a profile with a lower height can be used, whereby the height of the composite Abstützblöcke can be adapted to the needs.
  • a strip which may consist of elastic material, in particular of a silicone rubber.
  • the support block 15 is in the Fig. 4 shown in more detail.
  • the support block 15 has in cross section perpendicular to its longitudinal extent approximately a rectangular shape with a certain height H and a width B, of which the width B is smaller than the height H.
  • the support block 15 has an inner cavity 18, whereby a weight reduction and a material reduction is generated.
  • In the bearing surfaces 19 and 20 are grooves 21 and 22, wherein in the in Fig. 4 shown in the groove 21, a centering profile 23 is inserted, which serves to generate a rotation between two superimposed support blocks 24 1 and 24 2 , see Fig. 3 ,
  • the support blocks 24 1 and 24 2 of Fig. 3 differ from the support block 15 according to Fig. 4 in that a cavity 18 is not present.
  • side surfaces 25 and 26 are provided outwardly projecting and extending in the longitudinal direction of the support block 15 strips 27 and 28 which project outwardly from the side surfaces 25 and 26 in the opposite direction, creating a Creepage distance between the coil 17 and the double-T-beams 10, 11 is generated on both side surfaces.
  • the corresponding bars of the support blocks 24 1 and 24 2 are not provided there with reference numerals.
  • the Fig. 1 shows in addition to the support block 15, two support blocks 16 1 and 16 2 , in Fig. 5 are shown. They have a width B which corresponds to the width of the support blocks 15, and a height h, which is lower, in certain cases significantly less than the height H of the support blocks. With these support blocks 16 1 and 16 2 , an adjustment of the support blocks to the distance or the distance of the coil from the support surface 14 of the carrier 10, 11 is set.
  • the support blocks 16 1 , 16 2 which may be referred to as shims, have on the upper side (in the drawing) a projection 33 and on the lower side a longitudinally extending, parallel to the projection 33 extending recess 34, the recess 22nd corresponds; the projection 33 is dimensioned such that it can engage in the corresponding recess 22 of a further support block placed over the compensating piece 16, as in FIG Fig. 1 shown.
  • a strip 35 of elastic material in the existing there groove or recess 21 is a strip 35 of elastic material in the existing there groove or recess 21 (see Fig. 4 ), preferably a strip of a silicone rubber material, with the possible unevenness of the lower side of the coil 17 can be compensated.
  • the strip 35 can have the same dimensions as the centering profile 23.
  • corresponding flat compensating materials can also be inserted between the individual support blocks 15 or compensating pieces 16 1 , 16 2 .
  • the centering profiles 23 can be glued into the recess 21.
  • two plates 37 may be inserted, which serve as balancing plates.
  • more than two balancing plates or only one can be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Insulating Of Coils (AREA)

Claims (8)

  1. Transformateur bi- ou multiphasé comprenant une culasse qui présente une âme et au moins deux branches, branches sur lesquelles est à chaque fois posée une bobine (17), et comprenant au moins un support (10, 11) sur lequel est fixée l'âme et qui présente des surfaces supports (14) pour les bobines, au moins deux blocs d'appui (15, 16) pour chaque bobine reposant sur chaque surface support (14), lesquels sont déposés sur la surface porteuse (19), du côté de la bobine, avec des éléments de compensation souples (35) et qui présentent sur leurs surfaces latérales longitudinales (25, 26), qui s'étendent perpendiculairement à la surface porteuse (19), au moins une baguette (27, 28) qui prolonge la distance de fuite superficielle et qui s'étend dans le sens longitudinal parallèlement à la surface porteuse du bloc d'appui, caractérisé en ce que les au moins deux blocs d'appui (15, 16) empilés présentent respectivement, au niveau du plan de contact des deux, une partie en saillie (33) pour l'un et un enfoncement (34) adapté à celle-ci pour l'autre, lesquels s'étendent dans le sens longitudinal, la partie en saillie (33) s'adaptant dans l'enfoncement (34) de telle sorte que les deux blocs d'appui sont guidés l'un contre l'autre par la partie en saillie et l'enfoncement de manière similaire à une rainure et une languette.
  2. Transformateur selon la revendication 1, caractérisé en ce qu'au moins un bloc d'appui (15, 16) présente sur ses faces frontales au moins une fente (31, 32) pratiquée en direction de la surface porteuse et parallèlement à celle-ci, laquelle sert également à augmenter la distance de fuite superficielle.
  3. Transformateur selon la revendication 2, caractérisé en ce que l'au moins une fente (31, 32) est pratiquée à l'extérieur de la zone des baguettes (27, 28).
  4. Transformateur selon l'une des revendications précédentes, caractérisé en ce qu'au moins un bloc d'appui (15) est creux.
  5. Transformateur selon la revendication 4, caractérisé en ce que l'au moins un bloc d'appui creux (15) présente au moins deux, de préférence trois baguettes (27, 28) sur chaque surface latérale longitudinale (25, 26).
  6. Transformateur selon l'une des revendications précédentes, caractérisé en ce que pour réaliser la rainure et la languette sur les plans de contact de deux blocs d'appui posés l'un au-dessus de l'autre, il est à chaque fois prévu un enfoncement (21, 22) dans lequel est inséré, de préférence collé, un élément intermédiaire (23).
  7. Transformateur selon l'une des revendications précédentes, caractérisé en ce qu'une couche intermédiaire (35) en un matériau élastique souple, notamment une couche intermédiaire en un caoutchouc de silicone, est prévue entre la bobine et le bloc d'appui ou les blocs d'appui sur lequel/lesquels reposent directement les bobines, pour compenser les irrégularités des bobines.
  8. Transformateur selon la revendication 7, caractérisé en ce que la couche intermédiaire (35) et ses dimensions correspondent approximativement à celles des éléments intermédiaires (23), de sorte que la couche intermédiaire (35) peut être déposée dans un enfoncement (21) .
EP09712840A 2008-02-22 2009-02-17 Transformateur biphasé ou polyiphasé Active EP2255366B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008010548A DE102008010548A1 (de) 2008-02-22 2008-02-22 Zwei- oder mehrphasiger Transformator
PCT/EP2009/001095 WO2009103481A1 (fr) 2008-02-22 2009-02-17 Transformateur biphasé ou polyiphasé

Publications (2)

Publication Number Publication Date
EP2255366A1 EP2255366A1 (fr) 2010-12-01
EP2255366B1 true EP2255366B1 (fr) 2012-04-25

Family

ID=40756236

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09712840A Active EP2255366B1 (fr) 2008-02-22 2009-02-17 Transformateur biphasé ou polyiphasé

Country Status (10)

Country Link
US (1) US8274354B2 (fr)
EP (1) EP2255366B1 (fr)
KR (1) KR101493406B1 (fr)
CN (1) CN101952912B (fr)
AT (1) ATE555487T1 (fr)
BR (1) BRPI0907943B1 (fr)
CA (1) CA2716147C (fr)
DE (1) DE102008010548A1 (fr)
ES (1) ES2384825T3 (fr)
WO (1) WO2009103481A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT514282B1 (de) * 2013-03-15 2015-10-15 Trench Austria Gmbh Wicklungslagen-Steigungsausgleich für eine Luftdrosselspule
EP3796346B1 (fr) 2019-09-23 2024-08-21 HSP Hochspannungsgeräte GmbH Bloc de compensation pour bobines à noyau d'air

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE53189C (de) s. S. bromhead in London, Newgate Street 97 Torpedo - Fallgeschirr
DE101053C (fr)
US2062163A (en) * 1927-12-31 1936-11-24 Schweitzer & Conrad Inc Resistance unit and mounting therefor
DE603240C (de) * 1931-02-13 1934-09-26 Paul Reichert Isolationsanordnung fuer elektrische Apparate, insbesondere fuer Transformatoren, mit Luftisolation
DD35663A1 (de) * 1964-02-28 1965-01-05 Abstützklotz zur Spulenabstützung bei Transformatoren mit Zylinderwicklungen
DD53189A1 (de) * 1966-04-19 1967-01-05 Spülenabstützung für Wicklungen von Transformatoren und Drosseln
AT310866B (de) * 1972-03-10 1973-10-25 Esslinger Spezielektra Freiluftausführung einer Zugstange aus Isolierstoff für die Verwendung in elektrischen Anlagen und Apparaten, vorzugsweise Drosselspulen
DD101053A1 (de) * 1972-12-21 1973-10-12 Joachim Schmidt Anordnung zur distanzierung der radialen kuehlkanaele bei roehrenwicklungen aus scheibenspulen
DE2349121A1 (de) * 1973-09-29 1975-04-10 Bertos Ag Wicklungsabstuetzung fuer transformatoren, drosselspulen und dgl.
US3903441A (en) * 1974-05-15 1975-09-02 Westinghouse Electric Corp Lead box for dynamoelectric machines
DE2623156B2 (de) * 1976-05-22 1980-05-22 Transformatoren Union Ag, 7000 Stuttgart Elektrische Durchführung mit Gieliharzstützer und Metallbefestigungsflansch
JPS5534403A (en) * 1978-08-31 1980-03-11 Hitachi Ltd Molded transformer
DE4034317C2 (de) * 1990-10-24 1996-07-11 Aeg Tro Transformatoren Gmbh Radiale Abstützanordnung in axialen Kühlkanälen von Transformatoren oder Drosselspulen mit Lagenwicklungen
US5534839A (en) * 1995-04-05 1996-07-09 Cramer Coil & Transformer Co., Inc. Miniature transformer
TW410353B (en) * 1998-02-13 2000-11-01 Thomson Brandt Gmbh Transformer
JPH11297535A (ja) 1998-04-14 1999-10-29 Tamura Seisakusho Co Ltd カバー付小型トランス
US6404316B1 (en) * 2000-05-09 2002-06-11 Lucent Technologies Inc. Magnetic device and method of manufacture therefor
DE20105608U1 (de) * 2001-03-27 2001-11-08 Siemens AG, 80333 München Abstützvorrichtung für ein elektrisches Bauteil in Form einer Spule
DE20210882U1 (de) * 2002-07-12 2002-10-10 Siemens AG, 80333 München Abstützvorrichtung zur Abstützung von zumindest einer Wicklung
CN2563726Y (zh) * 2002-08-07 2003-07-30 沈阳昊诚电气设备有限公司 真空浸渍式干式变压器
US7005954B2 (en) * 2003-12-04 2006-02-28 General Atomics Electronic Systems, Inc. High current long life inductor
KR200355756Y1 (ko) 2004-04-22 2004-07-07 리엔 창 일렉트로닉 변압기 구조
CN100407345C (zh) * 2005-12-30 2008-07-30 中国科学院电工研究所 一种电力变压器外绝缘结构
CN200965820Y (zh) * 2006-10-24 2007-10-24 谭勇 干式变压器的伞形绝缘垫块

Also Published As

Publication number Publication date
BRPI0907943A2 (pt) 2015-07-28
CA2716147C (fr) 2016-01-19
CN101952912B (zh) 2013-03-06
ES2384825T3 (es) 2012-07-12
US8274354B2 (en) 2012-09-25
WO2009103481A1 (fr) 2009-08-27
US20110001600A1 (en) 2011-01-06
BRPI0907943B1 (pt) 2023-10-10
BRPI0907943A8 (pt) 2022-12-13
ATE555487T1 (de) 2012-05-15
DE102008010548A1 (de) 2009-08-27
KR20100116629A (ko) 2010-11-01
EP2255366A1 (fr) 2010-12-01
KR101493406B1 (ko) 2015-02-13
CA2716147A1 (fr) 2009-08-27
CN101952912A (zh) 2011-01-19

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