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EP0746860B1 - Faisceau de conducteurs torsade pour enroulement de machines et appareils electriques - Google Patents

Faisceau de conducteurs torsade pour enroulement de machines et appareils electriques Download PDF

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Publication number
EP0746860B1
EP0746860B1 EP95909572A EP95909572A EP0746860B1 EP 0746860 B1 EP0746860 B1 EP 0746860B1 EP 95909572 A EP95909572 A EP 95909572A EP 95909572 A EP95909572 A EP 95909572A EP 0746860 B1 EP0746860 B1 EP 0746860B1
Authority
EP
European Patent Office
Prior art keywords
conductor bundle
stack
twisted conductor
conductors
bundle according
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
EP95909572A
Other languages
German (de)
English (en)
Other versions
EP0746860A1 (fr
Inventor
Paul Perger
Gernot Schnaubelt
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 Elektrodraht 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 Elektrodraht GmbH filed Critical ASTA Elektrodraht GmbH
Publication of EP0746860A1 publication Critical patent/EP0746860A1/fr
Application granted granted Critical
Publication of EP0746860B1 publication Critical patent/EP0746860B1/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
    • H01F27/32—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
    • 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
    • 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 wire conductor for windings of electrical machines and Devices, in particular transformers, made up of individual paint-insulated partial conductors is composed of a rectangular cross section, the individual conductors at the both flat sides of the cross section run obliquely in the opposite sense and on the narrow sides of the cross section through a crank from one side cross the other and cross-section of the sub-conductors arranged one above the other, if necessary at a distance, are arranged side by side and between two At least one sub-conductor of each sub-conductor stack arranged one above the other Spacer is arranged.
  • Such stranded conductors are known.
  • the partial conductors of which have a rectangular cross section are known.
  • the individual conductors preferably by one half stride length.
  • a constant overall height reached.
  • Most of the insulation was finished manufactured wire conductors made by wrapping paper.
  • the radial cooling channels of the winding are very large long. Since the main flow of the coolant is in the axial direction, it can be in the heat accumulation in the central area of the three-conductor. This heat build-up must be from Transformer calculator can be factored in by changing the current density accordingly is chosen small. However, a low current density requires a high copper requirement for the winding.
  • An electrical conductor of the type mentioned is from US Pat. No. 3,283,280 known and used in so-called shell-type windings, where between two superimposed partial conductors of each partial conductor stack at least one spacer is arranged. These insulating pieces are inserted from the purpose that the edges of the twisted sub-conductors do not isolate the over or underlying conductor is destroyed. The twisting of the partial conductors themselves takes place for reasons of stray flux control. The digits before and after the immediate twist are from the opposite running corresponding Partial conductor - because there is a slight slope - closed again.
  • the object of the invention is to create a twisted pair conductor of the type cited at the beginning, which on the one hand avoids the above disadvantages and on the other hand the needs of the Machine and device designers take into account, and a higher utilization of the material while preferably reducing the overall height.
  • the drill conductor according to the invention is characterized in that the Spacers formed cross channels of each partial conductor stack are aligned.
  • the calculator aims to subdivide the Copper cross-section and sets the step length of the wire conductor very short. In order to the stray field and additional losses are minimized. This too The invention does not conflict with claims.
  • the transverse channels are in one Level of the partial conductor stack is provided at a distance from one another.
  • the transverse channels are in one Level of the partial conductor stack is provided at a distance from one another.
  • the transverse channels are in at least two different levels of the partial conductor stack provided. According to the The expected hot spots, which can be determined mathematically in advance, is the Arrangement of such cooling channels is essential.
  • the twisted pair is with a large-mesh mesh tape wrapped. Because the twisted pair from the machine runs on a drum or a winding core is wound by the net tape possible falling out of the spacers avoided. In addition, the drill leader also better and easier to wind up.
  • the network band is one with partially cross-linked epoxy resin pre-impregnated glass fabric bandage. This will make the Cohesion of the conductor bundle is guaranteed and after heat treatment mechanical stability of the conductor increased.
  • the covering is only in the area of the Bend or spacers provided. This will make the paper insulation bulges that occur which reduce the winding gap or the oil channel, safely avoided.
  • the spacers are Cover attachment to partial conductor on at least one surface with epoxy resin or have a glass fiber fleece pre-impregnated with partially cross-linked epoxy resin. A good This ensures that the spacers adhere to the conductor surface.
  • the invention is not on twisted pairs with partial conductors that are rectangular Cross-section have limited.
  • round wire three-wire conductors are also used or stranded wire with laterally integrated spacers.
  • FIG. 1 shows a drill conductor according to the invention in the diagram and Fig. 2 is an elevation.
  • a stranded conductor 1 is shown, the one made of flat wires existing partial conductor 2 are arranged one above the other. It is known per se that the stranded wire consisting of flat wires consists of up to approximately 80 sub-wires.
  • the partial conductor is twisted to the twisted conductor, which is done mechanically, changes from the two partial conductor stacks, the top and the bottom partial conductor 2 in the other Partial conductor stack over, preferably the partial conductor by half each Stride length.
  • This deformation for the crossing of the partial conductor 2 the offset from one stack of sub-conductors to the other stack of sub-conductors is 3. After the Bend 3 of the partial conductor 2 they run obliquely.
  • each partial conductor stack is aligned.
  • the spacers 4 can in one level or in different levels of the Part conductor stack can be arranged. This results in a cooling channel 5 for one Coolant passage. When using this cable in a Transformer winding is given a cooling channel in the axial direction.
  • an envelope can be provided.
  • This wrapping can have a large mesh partially cross-linked epoxy resin pre-impregnated glass fabric bandage.
  • the cooling channels 5 are made by inserting spacers 4 between the partial conductors 2 formed.
  • the spacers 4 are preferably used for each partial conductor stack introduced on one side. Of course, the spacers 4 will be aligned with each other, so that good coolant passage is guaranteed.
  • the spacers 4 can with a device, preferably according to the Drill head is arranged, similar to a loading device.
  • the spacers 4 consist in particular of plastic.

Landscapes

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

Claims (9)

  1. Faisceau des conducteurs torsadé (1) pour réaliser des enroulements de machines et d'appareils électriques et, en particulier, de transformateurs, constitué de conducteurs individuels (2) isolés par une laque et disposés de manière à former une structure rectangulaire en coupe transversale, où les conducteurs isolés sur les deux côtés opposés plats de la section transversale sont disposés en biais dans des directions opposées et ceux sur les côtés étroits de la coupe transversale vont d'un côté à l'autre en faisant des coudes, où les conducteurs individuels superposées (2) pour former une structure rectangulaire en coupe transversale sont disposés l'un à côté de l'autre avec éventuellement une certaine distance entre eux et où entre deux conducteurs individuels superposés de chaque empilement de conducteurs individuels, il est prévu au moins un élément d'espacement, caractérisé en ce que les canaux transversaux (5) résultant des éléments d'espacement (4) de chaque empilement de conducteurs individuels sont mutuellement alignés.
  2. Faisceau se conducteurs torsadé selon la revendication 1, caractérisé en ce que les canaux transversaux (5) sont disposés dans un plan de l'empilement des conducteurs, avec une certaine distance entre eux.
  3. Faisceau de conducteurs torsadé selon la revendication 1 ou la revendication 2, caractérisé en ce que les canaux transversaux (5) sont disposés au moins dans deux plans différents de l'empilement de conducteurs individuels.
  4. Faisceau de conducteurs torsadé selon la revendication 3, caractérisé en ce que les canaux transversaux prévus dans les différents plans de l'empilement de conducteurs individuels sont superposés.
  5. Faisceau de conducteurs torsadé selon la revendication 4, caractérisé en ce que les canaux transversaux prévus dans les différents plans de l'empilement des conducteurs individuels sont disposés en quinconce.
  6. Faisceau de conducteurs torsadé selon l'une des revendications 1 à 5, caractérisé en ce que le faisceau de conducteurs torsadé (1) est enrobé avec une bande à grosses mailles.
  7. Faisceau de conducteurs torsadé selon la revendication 6, caractérisé en ce que la bande est une bande en fibres de verre imprégnée au préalable par une résine époxyde partiellement réticulée.
  8. Faisceau de conducteurs torsadé selon la revendication 6 ou la revendication 7, caractérisé en ce que l'enrobage est fait uniquement dans la zone des coudes ou dans celle des éléments d'espacement (4).
  9. Faisceau de conducteurs torsadé selon l'une des revendications 1 à 8, caractérisé en ce qu'au moins une surface des éléments d'espacement (4) est enduite avec une résine époxyde ou qu'elle comporte un voile en fibres imprégné de résine époxyde partiellement réticulée, pour assurer une fixation au conducteur individuel (2).
EP95909572A 1994-02-25 1995-02-23 Faisceau de conducteurs torsade pour enroulement de machines et appareils electriques Expired - Lifetime EP0746860B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0039894A AT403972B (de) 1994-02-25 1994-02-25 Drilleiter für wicklungen elektrischer maschinen und geräte
AT398/94 1994-02-25
PCT/AT1995/000038 WO1995023420A1 (fr) 1994-02-25 1995-02-23 Faisceau de conducteurs torsade pour enroulement de machines et appareils electriques

Publications (2)

Publication Number Publication Date
EP0746860A1 EP0746860A1 (fr) 1996-12-11
EP0746860B1 true EP0746860B1 (fr) 1998-04-22

Family

ID=3489559

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95909572A Expired - Lifetime EP0746860B1 (fr) 1994-02-25 1995-02-23 Faisceau de conducteurs torsade pour enroulement de machines et appareils electriques

Country Status (4)

Country Link
EP (1) EP0746860B1 (fr)
AT (1) AT403972B (fr)
DE (1) DE59501990D1 (fr)
WO (1) WO1995023420A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7205875B2 (en) * 2003-06-26 2007-04-17 Eaton Power Quality Corporation Hybrid air/magnetic core inductor
CN1581380A (zh) * 2003-08-11 2005-02-16 尼克桑斯公司 玻璃纤维丝网状带换位导线及其制造和使用方法
EP3839987B1 (fr) * 2019-12-18 2024-04-17 Hitachi Energy Ltd Procédé et structure de conducteur pour fabriquer un enroulement électrique d'un appareil à induction électromagnétique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3283280A (en) * 1964-12-22 1966-11-01 Westinghouse Electric Corp Transposition for electrical conductors
GB1242402A (en) * 1967-11-07 1971-08-11 Bruce Peebles Ind Ltd Cable for an electrical winding
DE2151961A1 (de) * 1971-10-19 1973-04-26 Ceag Dominit Ag Aus parallel gewickelten flachdraehten aufgebaute wicklung, insbesondere transformatorenwicklung

Also Published As

Publication number Publication date
WO1995023420A1 (fr) 1995-08-31
DE59501990D1 (de) 1998-05-28
ATA39894A (de) 1997-11-15
EP0746860A1 (fr) 1996-12-11
AT403972B (de) 1998-07-27

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