EP1298680B1 - Ensemble d'enroulement électrique - Google Patents

Ensemble d'enroulement électrique Download PDF

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Publication number
EP1298680B1
EP1298680B1 EP20020090340 EP02090340A EP1298680B1 EP 1298680 B1 EP1298680 B1 EP 1298680B1 EP 20020090340 EP20020090340 EP 20020090340 EP 02090340 A EP02090340 A EP 02090340A EP 1298680 B1 EP1298680 B1 EP 1298680B1
Authority
EP
European Patent Office
Prior art keywords
winding
supporting
winding arrangement
electrical winding
support
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
EP20020090340
Other languages
German (de)
English (en)
Other versions
EP1298680A2 (fr
EP1298680A3 (fr
Inventor
Friedrich Alber
Rudolf Dedelmahr
Martin Alsina Navarro
Fritz Sorg
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP1298680A2 publication Critical patent/EP1298680A2/fr
Publication of EP1298680A3 publication Critical patent/EP1298680A3/fr
Application granted granted Critical
Publication of EP1298680B1 publication Critical patent/EP1298680B1/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
    • H01F27/30—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
    • H01F27/008—Details of transformers or inductances, in general with temperature compensation

Definitions

  • the invention relates to an electrical winding arrangement with at least one electrical winding, which is supported with at least two supporting parts against a holding arrangement.
  • Such an electrical winding arrangement is obviously used in the GEAFOL Cast Resin Transformer of Siemens AG / Trafo-Union; This transformer is also shown in the brochure "GEAFOL Cast Resin Transformers - Cutting-Edge Technology Made by One" of the Trafo Union.
  • the known transformer is three-phase and has three winding combinations, each with two coaxially arranged one another windings, each surrounding a core leg of a three-legged core of the transformer.
  • the windings are supported on each of their end faces with at least one support member against a frame forming a holding device, which is connected to the core legs to the three-limbed core connecting core yokes.
  • Each support member has an inelastic support member and another resilient support element adjacent thereto, the inelastic support member abutting the support assembly and the further resilient support member end face of the winding.
  • the support elements are all heat resistant to class F of DIN 532, Part 6.
  • the object of the invention is to provide an electrical winding arrangement of the type mentioned, which requires a relatively low effort.
  • the object is achieved in an electrical winding arrangement of the aforementioned type according to the invention that the support members are formed differently heat-resistant and arranged such that the heat-resistant support member is disposed in a relatively warm operation in the area of the winding assembly and that the less heat-resistant support member to a relatively cool portion of the winding assembly is located.
  • the invention makes use of the fact that the electrical winding arrangement does not assume the same temperature in all areas and that the support parts are not all exposed to the same high temperature, so that not all support parts have the same thermal load of the support parts Must have heat resistance. Rather, the supporting parts, which are arranged on the relatively cool region of the winding arrangement during operation, are less heat-resistant than the supporting parts which are located on the relatively warm region of the winding arrangement during operation. Since the less heat-resistant support parts are less expensive, the winding arrangement according to the invention also requires only little effort.
  • the support members may each have a heat resistance, which is adapted especially with regard to the applied thermal load at the respective installation location.
  • the heat-resistant support part preferably has a thermal strength of class F according to DIN 532, part 6 and the less heat-resistant support part has a thermal strength of class B according to DIN 532, part 6.
  • the winding is arranged cylindrical and upright and at its upper end side with the heat-resistant support member and at its lower end side supported with the less heat-resistant support member against the support assembly.
  • the temperature gradient forming between the lower and the upper end side, which forms along the winding due to the vertical arrangement, is very noticeable; in the area of the upper end face, considerably higher temperatures occur than in the area of the lower end face. Accordingly, the heat resistance of the two support parts are selected.
  • the support members may be formed integrally and from a single material, but they may also be arbitrarily composed of several individual parts, provided that each of the items has the required heat resistance. At least one of the support parts preferably has an inelastic support element and a further resilient support element abutting thereon, wherein the one support element bears against the holding arrangement and the further support element bears against the winding. As a result, the winding is resiliently supported, so that the occurring during operation different thermal expansion of the winding are resiliently received.
  • the inelastic support element with hard paper, hard tissue, wood and / or thermosetting plastic is formed.
  • the thermoset in a trained with thermoset support the thermoset can be selected according to the required heat resistance.
  • the elastic support element is formed with an elastomer. These materials are particularly suitable due to their resilient properties for the formation of the resilient support element.
  • the resilient support element of the heat-resistant support member is formed with a silicone rubber. Silicone rubber is a correspondingly heat-resistant material.
  • the resilient support member of the less heat-resistant support member is formed with neoprene.
  • Neoprene is a reasonably priced and resilient material that is well suited for the less heat-resistant support part.
  • the figure shows a three-phase transformer 1 with a three-leg transformer core 2 and three winding combinations 3 to 5, each surrounding a core leg 6, 7 and 8 respectively.
  • the structure of the winding combinations 3, 4 and 5 are each similar and will be explained with reference to the winding combination 5 shown cut.
  • the winding combination 5 has a first outer winding 9, which coaxially surrounds an inner winding 10 while leaving an annular channel 29.
  • the annular channel 29 is divided by means of a cooling cylinder 30 into two sub-channels 29A and 29B, through which cooling air can flow.
  • the respective outer windings 11 and 12 corresponding to the outer winding 9 are visible.
  • the frame carrier 22, 23, 24, 25 has.
  • the frame supports 22 and 23 are connected to the upper, the core legs 6, 7 and 8 magnetically interconnecting core yoke 26.
  • the frame supports 24 and 25 are connected to the corresponding lower core yoke 26A.
  • the windings 9 to 12th and the inner winding of the winding combinations 3 and 4 corresponding to the inner winding 10 hidden due to the perspective view supported for the support thereof.
  • support members are provided, of which only visible in the perspective view:
  • the support members 13, 14 and 16 which serve to support the winding 11 and the winding 9 corresponding inner winding of the winding combination 3, the support members 17 and 18, the Supporting the winding 12 and corresponding to the winding 10 inner winding of the winding combination 4 serve and the support members 19, 20 and 21 for supporting the windings 9 and 10.
  • the support members 13, 14, 17, 19 and 20 are formed of a heat-resistant material , as the support members 16, 18 and 21st
  • the winding combinations 3 to 5 are heated due to their electrical losses, which in their nearer to the frame rails 22 and 23 lying areas heat up more than in their lying to the frame rails 24 and 25 areas.
  • This different heat distribution in the winding combinations 3 to 5 is primarily due to the fact that their upper, to the frame rails 23 and 22 lying areas, cooled worse with the flowing through the annular channel 29 and the respective annular channels of the winding combinations 3 and 4 cooling air become.
  • the corresponding annular channels of the winding combinations 3 and 4 namely, a downwardly directed upward flow of cooling air.
  • the windings are 9 and 10 in the lower part of the winding combination with cooler cooling air and therefore better cooled than in the upper part of the winding combination 5.
  • the temperature difference, for example, along the winding 11 between the at its lower (hidden) end face 27 and the Temperature forms at its upper end face 28 may be several 10 ° C.
  • the support elements 13 and 14 experience a stronger thermal load than the support element 16, so that the support elements 13 and 14 are formed heat-resistant than the support elements 16.
  • the support element 16 does not have to be formed as heat-resistant as the support members 13 and 14th ,
  • the support elements 13 and 14 have in particular a thermal strength class F according to DIN 532, Part 6 and the less heat-resistant support member 16 has a thermal strength of class B of the same DIN standard.
  • the support members 17, 19 and 20 are formed heat-resistant than the support members 18 and 21st
  • the support part 13 is formed with an inelastic support element 15 and a resilient support element 15 a resting thereon.
  • the inelastic support element 15 rests against the frame carrier 22 and the resilient Supporting element 15a abuts against the end face 28 of the winding 11.
  • the support member 16 is also formed with an inelastic support member 16b and an elastic support member 16a.
  • inelastic support member 15 or 16b for example, hard paper, hard tissue, wood and / or a correspondingly heat-resistant thermoset; Likewise, a ceramic material can be used for it.
  • an elastomer in particular a silicone rubber, is suitable for the elastic support element 15a of the heat-resistant support part 13.
  • the resilient support member 16a of the less heat-resistant support member 16 may be formed, for example, with neoprene.
  • the support members 17, 19 and 20 are similar to the support member 13 also formed with a corresponding inelastic and a corresponding resilient support member;
  • the support members 18 and 21 are the same as the support member 16 with a corresponding inelastic and a corresponding resilient support member.

Landscapes

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

Claims (8)

  1. Agencement d'enroulement électrique comprenant au moins un enroulement ( 11 ) électrique qui est appuyé par au moins deux parties ( 13,16 ) d'appui sur un dispositif ( 22, 24 ) de maintien,
    caractérisé en ce que les parties ( 13, 16 ) d'appui sont constituées d'une manière différente en ce qui concerne la résistance à la chaleur et sont disposées de façon à ce que la partie ( 13 ) d'appui qui résiste le plus à la chaleur, soit disposée sur une partie de l'agencement d'enroulement relativement chaude en fonctionnement et de manière à ce que la partie ( 16 ) d'appui qui résiste le moins à la chaleur, se trouve sur une partie relativement froide de l'agencement d'enroulement.
  2. Agencement d'enroulement électrique suivant la revendication 1,
    caractérisé en ce que la partie ( 13 ) d'appui, qui résiste le plus à la chaleur, a une résistance thermique de la classe F suivant la norme DIN 532 partie 6 et la partie ( 16 ) d'appui qui résiste le moins à la chaleur, a une résistance thermique de la classe B suivant la norme DIN 532 partie 6.
  3. Agencement d'enroulement électrique suivant la revendication 1 ou 2,
    caractérisé en ce que l'enroulement ( 11 ) est cylindrique et est disposé verticalement et est appuyé sur le dispositif ( 22, 24 ) de maintien sur son côté ( 28 ) frontal supérieur par la partie ( 16 ) d'appui qui résiste le plus à la chaleur et sur son côté ( 27 ) frontal inférieur par l'élément ( 16 ) d'appui qui résiste le moins à la chaleur.
  4. Agencement d'enroulement électrique suivant l'une des revendications 1 à 3,
    caractérisé en ce qu'au moins l'une des parties ( 13, 16 ) d'appui a un élément ( 15, 16B ) d'appui inélastique et un autre élément ( 15A, 16A) d'appui élastique qui s'y applique, le premier élément ( 15, 16B ) d'appui s'appliquant au dispositif ( 22, 24 ) de maintien et l'autre élément ( 15A, 16A ) d'appui à l'enroulement ( 11 ).
  5. Agencement d'enroulement électrique suivant la revendication 4,
    caractérisé en ce que l'élément ( 15, 16B ) d'appui inélastique est en papier dur, en tissu dur, en bois et/ou en matière thermodurcissable.
  6. Agencement d'enroulement électrique suivant la revendication 4 ou 5,
    caractérisé en ce que l'élément ( 15A, 16A ) d'appui élastique est constitué par un élastomère.
  7. Agencement d'enroulement électrique suivant la revendication 6,
    caractérisé en ce que l'élément ( 15A ) d'appui élastique de la partie ( 13 ) d'appui, qui résiste le plus à la chaleur, est en un caoutchouc de silicone.
  8. Agencement d'enroulement électrique suivant la revendication 6 ou 7,
    caractérisé en ce que l'élément ( 16A ) élastique de la partie ( 16 ) d'appui, qui résiste le moins à la chaleur, est en néoprène.
EP20020090340 2001-09-28 2002-09-19 Ensemble d'enroulement électrique Expired - Lifetime EP1298680B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10148946 2001-09-28
DE2001148946 DE10148946C2 (de) 2001-09-28 2001-09-28 Elektrische Wicklungsanordnung

Publications (3)

Publication Number Publication Date
EP1298680A2 EP1298680A2 (fr) 2003-04-02
EP1298680A3 EP1298680A3 (fr) 2004-04-21
EP1298680B1 true EP1298680B1 (fr) 2009-10-28

Family

ID=7701359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020090340 Expired - Lifetime EP1298680B1 (fr) 2001-09-28 2002-09-19 Ensemble d'enroulement électrique

Country Status (2)

Country Link
EP (1) EP1298680B1 (fr)
DE (2) DE10148946C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102388424A (zh) * 2009-04-11 2012-03-21 Abb技术有限公司 带有无定形的芯部的功率变压器

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4318079B2 (ja) * 2004-03-11 2009-08-19 ウシオ電機株式会社 高圧トランス
DE102005058119B4 (de) * 2005-11-29 2008-01-10 Siemens Ag Fixiervorrichtung für eine elektrische Wicklung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6248009A (ja) * 1985-08-28 1987-03-02 Hitachi Ltd 変圧器の巻線支持装置
JPH0945551A (ja) * 1995-08-02 1997-02-14 Hitachi Ltd ガス絶縁静止誘導電器
DE19854439C2 (de) * 1998-11-25 2000-10-12 Siemens Ag Transformator - insbesondere Giessharztransformator
JP2000252138A (ja) * 1999-03-04 2000-09-14 Fuji Electric Co Ltd 樹脂モールド変圧器
DE19912280C1 (de) * 1999-03-18 2000-09-14 Siemens Ag Transformator und Verfahren zur Kühlung eines Transformators

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102388424A (zh) * 2009-04-11 2012-03-21 Abb技术有限公司 带有无定形的芯部的功率变压器
CN102388424B (zh) * 2009-04-11 2015-05-20 Abb技术有限公司 带有非晶的芯部的功率变压器

Also Published As

Publication number Publication date
DE50213959D1 (de) 2009-12-10
DE10148946C2 (de) 2003-09-04
EP1298680A2 (fr) 2003-04-02
EP1298680A3 (fr) 2004-04-21
DE10148946A1 (de) 2003-04-24

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