EP0056580B1 - Enroulement pour un transformateur ou bobine réactance à sec refroidi par air et comportant des éléments d'espacement dans les canaux à air - Google Patents

Enroulement pour un transformateur ou bobine réactance à sec refroidi par air et comportant des éléments d'espacement dans les canaux à air Download PDF

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Publication number
EP0056580B1
EP0056580B1 EP82100047A EP82100047A EP0056580B1 EP 0056580 B1 EP0056580 B1 EP 0056580B1 EP 82100047 A EP82100047 A EP 82100047A EP 82100047 A EP82100047 A EP 82100047A EP 0056580 B1 EP0056580 B1 EP 0056580B1
Authority
EP
European Patent Office
Prior art keywords
winding
supporting legs
winding according
distance elements
interconnected
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
Application number
EP82100047A
Other languages
German (de)
English (en)
Other versions
EP0056580A1 (fr
Inventor
Jacobus F.H. Van Der Vegt
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.)
Holec Systemen en Componenten BV
Original Assignee
Smit Transformatoren BV
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6122737&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0056580(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Smit Transformatoren BV filed Critical Smit Transformatoren BV
Priority to AT82100047T priority Critical patent/ATE15293T1/de
Publication of EP0056580A1 publication Critical patent/EP0056580A1/fr
Application granted granted Critical
Publication of EP0056580B1 publication Critical patent/EP0056580B1/fr
Expired 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
    • H01F27/08—Cooling; Ventilating
    • H01F27/085—Cooling by ambient air
    • 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
    • H01F27/322—Insulating of coils, windings, or parts thereof the insulation forming channels for circulation of the fluid

Definitions

  • the invention relates to a winding for a dry-type transformer or an inductor, in which the cavity between at least two winding layers is subdivided into a plurality of axially extending cooling channels by an axially aligned spacer arrangement, the spacer arrangement having supporting legs which are connected to one another at a distance.
  • the invention is therefore based on the basic idea of using individual spacer elements which do not have a full profile but a web profile.
  • Such spacer elements can be produced in a simple manner by extrusion from plastic.
  • the support legs can lie parallel to one another and, in cross section, form an H or ⁇ configuration together with the connecting web.
  • the H configuration has the advantage that the top and bottom are the same when inserting.
  • the ⁇ configuration again leads to a somewhat greater strength, since the connecting crossbar forms a kind of roof.
  • the spacer elements can, for example, be applied to an auxiliary carrier provided with an adhesive layer. It is also possible to connect them to one another at their free ends or in other areas via a spray skin or a thin film.
  • the film should be so thin or appropriately perforated that it can easily be torn again.
  • the partial winding which is shown in FIG. 1, is produced from winding wire or as a foil winding, as is known per se as prior art.
  • the spacer elements 3 are designed as an open profile, which has an IT- shaped cross section. This configuration consists of two support legs 4, 5, which are parallel to each other and rigidly connected to one another with a connecting web 6 lying perpendicular thereto are.
  • the wall thickness of the support legs is about 5-20% of the cross-sectional width or height.
  • This shape of the spacer elements enables the free part of the cross section of the spacer elements to be used for the heat transport through the cooling air, while at the same time a relatively dense covering of the circumference with spacer elements is possible to increase the strength. Due to this denser assignment, the winding can be wound with a higher proportion of metal (proportion of active material).
  • the spacer elements can be connected to one another at their feet or free ends 7 with a fine spray skin 8, so that insertion is facilitated.
  • a fine spray skin instead of a spray skin, a thin film, which is advantageously easy to tear, can also be used.
  • the spacer elements are preferably made of plastic in the extrusion process or of glass fiber reinforced plastic, the fiber preferred direction being in the element axis direction.
  • FIGS. 2a to d show a cross-sectional shape similar to that in FIG. 1.
  • the support legs 4, 5 end in foot-like widenings 9.
  • the spacer elements have stiffeners 10. In the present case, these stiffeners are thickened portions of the plastic mass used.
  • the cross-sectional shape shown in FIG. 2a is therefore suitable for absorbing a greater load than the profile of FIG. 1.
  • FIG. 2b shows a cross-sectional shape in which the support legs 4b, 5b diverge towards the free ends 9b, the ends which are close to one another being connected to one another by a connecting web 6b. This results in a trapezoidal shape in cross section. If the web 6b is omitted and a corresponding inclination of the legs 4b, 5b is selected, a V-shape can also result.
  • FIG. 2c shows an H configuration in which the support legs 4c, 5c are parallel to one another and are linked approximately in the middle by a connecting web 6c.
  • This configuration has the advantage that when inserting this profile cross section, it can be swapped at the top and bottom.
  • FIG. 2d shows a configuration in which the support legs 4d, 5d are parallel to one another and are connected to one another by an arch 6d instead of a straight web.
  • an arch can deflect the applied forces particularly well to the sides.
  • the height and length of the support legs in relation to the connecting webs or the bend results from the necessary distances between the winding layers to be cooled or from the heat dissipation requirements known to the person skilled in the art for a certain electrical winding power. Otherwise, the proportions of the parts relative to one another can be read from FIGS. 1 and 2.
  • the new spacer elements are inserted and attached, as is known.
  • auxiliary spacer elements during the winding and to remove them again after the winding has hardened.
  • glue the spacer elements onto a carrier film and to attach them in the desired arrangement within the windings.
  • the spacer elements can be introduced within the high-voltage or low-voltage winding or can be inserted between the high and low-voltage winding.

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

Claims (8)

1. Enroulement pour un transformateur à sec ou pour une bobine d'arrêt, dans lequel l'espace vide entre au moins deux couches d'enroulement (1, 2) est subdivisé en plusieurs canaux de refroidissement dirigés axialement par un agencement d'entretoisement qui est dirigé axialement et qui présente des jambes de soutien mutuellement liées et écartées, caractérisé en ce que, au sein de l'agencement d'entretoisement, les jambes de soutien (4, 5 ; 5b, 5b ; 4c, 5c ; 4d, 5d) sont rigidement liées entre elles, par paires constituant des éléments d'écartement individuels (3) et présentant à chaque fois deux extrémités libres.
2. Enroulement selon la revendication 1, caractérisé en ce que les jambes de soutien (4, 5 ; 4c, 5c) sont mutuellement parallèles et forment, en combinaison avec une âme de liaison (6 ; 6c), une section transversale en forme de H ou de 7r (figure 2a, 2c).
3. Enroulement selon la revendication 1, caractérisé en ce que les jambes de soutien (4b, 5b) divergent en direction de leurs extrémités libres (9b) et forment une section transversale en forme de trapèze ou de V.
4. Enroulement selon la revendication 1, caractérisé en ce que les jambes de soutien (4d, 5d) sont mutuellement parallèles ou forment un angle et sont reliées entre elles par une âme de liaison (6d) en forme d'arc (figure 2d).
5. Enroulement selon l'une des revendications 1 à 4, caractérisé en ce que les éléments d'écartement présentent des renforts (10) dans la région des transitions des jambes de soutien à l'âme de liaison ou à l'arc.
6. Enroulement selon la revendication 1, caractérisé en ce que les extrémités libres des éléments d'écartement sont munies d'élargissements du genre pied (9).
7. Enroulement selon la revendication 1, caractérisé en ce que plusieurs éléments d'écartement sont mutuellement liés, par une mince feuille ou par une peau produite par injection (8), aux extrémités libres des âmes de liaison.
8. Enroulement selon la revendication 1, caractérisé en ce que les éléments d'écartement (3) sont réalisés en matière plastique renforcée par des fibres de verre, la direction préférentielle des fibres se trouvant dans la direction axiale des éléments.
EP82100047A 1981-01-16 1982-01-07 Enroulement pour un transformateur ou bobine réactance à sec refroidi par air et comportant des éléments d'espacement dans les canaux à air Expired EP0056580B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82100047T ATE15293T1 (de) 1981-01-16 1982-01-07 Wicklung fuer einen luftgekuehlten trockentransformator oder fuer eine drosselspule mit distanzelementen in den luftkanaelen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3101217A DE3101217C2 (de) 1981-01-16 1981-01-16 Wicklung für einen Trockentransformator mit Abstandshalteanordnung
DE3101217 1981-01-16

Publications (2)

Publication Number Publication Date
EP0056580A1 EP0056580A1 (fr) 1982-07-28
EP0056580B1 true EP0056580B1 (fr) 1985-08-28

Family

ID=6122737

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82100047A Expired EP0056580B1 (fr) 1981-01-16 1982-01-07 Enroulement pour un transformateur ou bobine réactance à sec refroidi par air et comportant des éléments d'espacement dans les canaux à air

Country Status (4)

Country Link
EP (1) EP0056580B1 (fr)
JP (1) JPS57172707A (fr)
AT (1) ATE15293T1 (fr)
DE (1) DE3101217C2 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6357688B1 (en) 1997-02-03 2002-03-19 Abb Ab Coiling device
US6376775B1 (en) 1996-05-29 2002-04-23 Abb Ab Conductor for high-voltage windings and a rotating electric machine comprising a winding including the conductor
US6396187B1 (en) 1996-11-04 2002-05-28 Asea Brown Boveri Ab Laminated magnetic core for electric machines
US6417456B1 (en) 1996-05-29 2002-07-09 Abb Ab Insulated conductor for high-voltage windings and a method of manufacturing the same
US6429563B1 (en) 1997-02-03 2002-08-06 Abb Ab Mounting device for rotating electric machines
US6439497B1 (en) 1997-02-03 2002-08-27 Abb Ab Method and device for mounting a winding
US6465979B1 (en) 1997-02-03 2002-10-15 Abb Ab Series compensation of electric alternating current machines
US6525504B1 (en) 1997-11-28 2003-02-25 Abb Ab Method and device for controlling the magnetic flux in a rotating high voltage electric alternating current machine
US6525265B1 (en) 1997-11-28 2003-02-25 Asea Brown Boveri Ab High voltage power cable termination
US6577487B2 (en) 1996-05-29 2003-06-10 Asea Brown Boveri Ab Reduction of harmonics in AC machines
US6646363B2 (en) 1997-02-03 2003-11-11 Abb Ab Rotating electric machine with coil supports

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553924B1 (fr) * 1983-10-24 1987-07-24 Pioch Rene Element isolant en forme d'echelle pour le refroidissement des bobinages de transformateurs
DE3428613A1 (de) * 1984-08-02 1986-02-13 Transformatoren Union Ag, 7000 Stuttgart Lagenwicklung fuer transformatoren
UA44857C2 (uk) 1996-05-29 2002-03-15 Абб Аб Електромагнітний пристрій (варіанти), високовольтна електросилова установка, силова енергомережа, спосіб керування електричним полем у електромагнітному пристрої, спосіб виготовлення магнітного ланцюга для електричної машини, що обертається, кабель для утворення в електромагнітному пристрої обмотки, яка генерує магнітне поле
SE9704422D0 (sv) 1997-02-03 1997-11-28 Asea Brown Boveri Ändplatta
SE9704431D0 (sv) 1997-02-03 1997-11-28 Asea Brown Boveri Effektreglering av synkronmaskin
DE10246363B4 (de) * 2002-09-27 2006-04-13 August Krempel Söhne Gmbh & Co. Kg Kunststoffplatte aus verpresstem Prepregmaterial und Herstellungsverfahren
ITMI20050711A1 (it) * 2005-04-21 2006-10-22 Tmc Italia S P A Trasformatore a secco isolato in resina
CA2723248C (fr) * 2008-05-13 2015-04-14 Abb Technology Ag Transformateur sec
CN101728078A (zh) * 2008-10-30 2010-06-09 张家港市中亚特种变压器制造有限公司 用在干式变压器上的线圈撑条
CN103779043B (zh) * 2012-10-25 2017-09-26 台达电子企业管理（上海）有限公司 大功率电磁组件
CN103515054A (zh) * 2013-10-18 2014-01-15 安徽华正电气有限公司 大气道散热式干式空心电抗器
CN104752038A (zh) * 2015-04-22 2015-07-01 攀钢集团工程技术有限公司 内撑条、电力变压器及降低电流突变引起线圈形变的方法
DE102017220781B4 (de) * 2017-11-21 2019-09-26 Siemens Aktiengesellschaft Verfahren zum Herstellen von Abstandshaltern für eine Wicklungseinheit und Wicklungseinheit
US20230326653A1 (en) * 2021-07-19 2023-10-12 Hitachi Energy Switzerland Ag Support structure and transformer including a support structure

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1938421A (en) * 1932-03-23 1933-12-05 Gen Electric Spacer for electrical winding coils
US3170225A (en) * 1957-03-15 1965-02-23 Gen Electric Method of making foil wound electrical coils
DE1827448U (de) * 1960-07-05 1961-03-02 Licentia Gmbh Formkoerper aus glasfaserverstaerktem kunststoff, insbesondere glasgewebeverstaerkter giessharzformkoerper fuer elektrotechnische zwecke.
US3195084A (en) * 1962-05-23 1965-07-13 Westinghouse Electric Corp Electrical apparatus having foil wound windings and metallic duct formers
US3551863A (en) * 1968-03-18 1970-12-29 Louis L Marton Transformer with heat dissipator
DE1948848A1 (de) * 1969-09-26 1971-04-01 Siemens Ag Spulenwicklung
DE2051883B2 (de) * 1970-10-22 1976-07-29 Lepper-Dominit Transformatoren Gmbh, 5340 Bad Honnef Wicklung fuer trockentransformatoren und verfahren zu ihrer herstellung
DE7126814U (de) * 1971-07-13 1972-03-16 Transformatoren Union Ag Wicklung fuer transformatoren drosselspulen und dgl.
CH567327A5 (fr) * 1973-12-19 1975-09-30 Bbc Brown Boveri & Cie
DE7400858U (de) * 1973-12-19 1975-11-06 Bbc Brown Boveri & Cie Anordnung zur Isolierung elektrischer Komponenten, insbesondere bei Transformatoren und Drosselspulen
JPS54131717A (en) * 1978-04-05 1979-10-13 Hitachi Ltd Inter-winding insulation apparatus of oil-filled transformer

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6376775B1 (en) 1996-05-29 2002-04-23 Abb Ab Conductor for high-voltage windings and a rotating electric machine comprising a winding including the conductor
US6417456B1 (en) 1996-05-29 2002-07-09 Abb Ab Insulated conductor for high-voltage windings and a method of manufacturing the same
US6577487B2 (en) 1996-05-29 2003-06-10 Asea Brown Boveri Ab Reduction of harmonics in AC machines
US6396187B1 (en) 1996-11-04 2002-05-28 Asea Brown Boveri Ab Laminated magnetic core for electric machines
US6357688B1 (en) 1997-02-03 2002-03-19 Abb Ab Coiling device
US6429563B1 (en) 1997-02-03 2002-08-06 Abb Ab Mounting device for rotating electric machines
US6439497B1 (en) 1997-02-03 2002-08-27 Abb Ab Method and device for mounting a winding
US6465979B1 (en) 1997-02-03 2002-10-15 Abb Ab Series compensation of electric alternating current machines
US6646363B2 (en) 1997-02-03 2003-11-11 Abb Ab Rotating electric machine with coil supports
US6525504B1 (en) 1997-11-28 2003-02-25 Abb Ab Method and device for controlling the magnetic flux in a rotating high voltage electric alternating current machine
US6525265B1 (en) 1997-11-28 2003-02-25 Asea Brown Boveri Ab High voltage power cable termination

Also Published As

Publication number Publication date
DE3101217C2 (de) 1984-08-23
DE3101217A1 (de) 1982-08-05
EP0056580A1 (fr) 1982-07-28
JPS57172707A (en) 1982-10-23
ATE15293T1 (de) 1985-09-15

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