EP2104119A1 - Montagevorrichtung für Transformatorenkerne - Google Patents

Montagevorrichtung für Transformatorenkerne Download PDF

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Publication number
EP2104119A1
EP2104119A1 EP08005409A EP08005409A EP2104119A1 EP 2104119 A1 EP2104119 A1 EP 2104119A1 EP 08005409 A EP08005409 A EP 08005409A EP 08005409 A EP08005409 A EP 08005409A EP 2104119 A1 EP2104119 A1 EP 2104119A1
Authority
EP
European Patent Office
Prior art keywords
mounting device
mounting area
beams
flat mounting
parallel
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.)
Withdrawn
Application number
EP08005409A
Other languages
English (en)
French (fr)
Inventor
Ali Yasar
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
Priority to EP08005409A priority Critical patent/EP2104119A1/de
Priority to CN2009901001610U priority patent/CN202145423U/zh
Priority to PCT/EP2009/001750 priority patent/WO2009118099A1/en
Publication of EP2104119A1 publication Critical patent/EP2104119A1/de
Withdrawn legal-status Critical Current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
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0233—Manufacturing of magnetic circuits made from sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0231—Magnetic circuits with PM for power or force generation
    • H01F7/0252—PM holding devices

Definitions

  • the invention relates to a mounting device for the manufacturing of transformer cores composed of stacked metal sheets, having a flat mounting area.
  • cores for electrical transformers are composed of stacked metal sheets to prevent eddy currents during operation of such a transformer.
  • Transformer cores for high power three phase transformers for example in the range of 10 MVA up to several 100 MVA, have a size of some meters in length and width.
  • transformer limbs preferably 2, 3 or 5, are provided, which normally are arranged in parallel to each other. Those limbs are connected at their ends with yokes.
  • this invention aims at the reduction of the effort for changing the setup of a mounting device for transformer cores.
  • the mounting device for transformer cores mentioned above is characterized in that the flat mounting area is pivotable around a swiveling axis, that a platform is provided in parallel to the swiveling axis and upright to the flat mounting area, that on the flat mounting area in parallel to it and crosswise to the swiveling axis at least two beams being adjustable in length parallel to each other are arranged, that on that side of the beams which is opposite to the flat mounting area at least two block-shaped leveling elements are provided, which are connected to the beam by magnetic force, that those sides of the at least two block-shaped leveling elements being opposite to the flat mounting area are in line and in parallel to the flat mounting area and that the bock shaped leveling elements being attached to the at least two beams form a basis for the metal sheets to be stacked on them.
  • Each limp of the transformer core to be mounted is related to its own beam, which is adjustable in length according to the length of the limb.
  • a beam adjustable in length features at least a base module, which is preferably a hollow beam, and also at least one prolongation module, which is a beam with a smaller cross-section and which is guided moveable inside the hollow base module. By such a telescopic mechanism, the beam becomes adjustable in length.
  • Block shaped elements are connected to the upper side of the beams to provide a basis for stacking the metal sheets.
  • This connection is preferably realized by magnetic force.
  • the leveling elements can easily become mounted on and removed from the beam. Since the prolongation module of the beam adjustable in length has a smaller cross-section than the base module, all leveling elements placed on the prolongation module have to be thicker than those which are placed on the base module to provide a plane basis. A distance between the leveling elements is required for example to enable surrounding the completely stacked transformer core with a tape for stabilizing, which is guided between neighbored leveling elements.
  • the flat mounting area is in horizontal position. This enables an easy stacking.
  • the whole mounting area is pivotable into a vertical position to ensure an easier handling and transportation of the transformer core.
  • the transformer core has to be stacked with one side adjacent to the platform, so the weight load of the transformer core goes over on the platform while pivoting.
  • the gap between the at least two beams being adjustable in length is also adjustable. This enables an easy adjustment of the stacking base to the shape of the transformer core to be stacked, in particular the distance of the transformer limbs.
  • At least two first skid-like beams are connected to the mounting device opposite to the flat mounting area and in parallel to it, being crosswise to the swiveling axis and comprising a support bend at this end which is opposite to the swiveling axis.
  • a second skid-like beam is connected at the opposite end of each support bend which is in parallel to the platform.
  • the mounting device can be as well in horizontal as in vertical position always supported by skid-like beams. Further it is possible to change between those positions in a rolling motion with the support bend.
  • At least one support beam may be attached to at least one first skid-like beam for stabilizing the position of the mounting device in vertical orientation.
  • At least two block-shaped leveling elements may be fixed with at least one permanent magnet each.
  • Those block-shaped leveling elements are preferably made for example of wood.
  • a permanent magnet enables an easy fixing and removing of them and therefore it provides a high flexibility.
  • the material wood enables an easier manual handling due to its little weight.
  • At least one actuator is provided for adjusting the length of the at least two beams and/or at least one actuator is provided for the adjustments of the distances between the beams.
  • at least one actuator for example an electrical motor, the adjustment of the mounting device to the requirements of the transformer core to be stacked becomes easier and the handling at all is simplified in an advantageous manner.
  • At least one mounting fixture is connected with the magnetic force of a permanent magnet on the flat mounting area.
  • Those mounting fixtures are used to match the right position of the metal sheets during stacking.
  • a fixing of those fixtures on the mounting area with a magnetic force will also simplify the handling.
  • the locations, where to fix those fixtures to the mounting area are marked for example with color.
  • the problem mentioned above is also solved by a method for manufacturing of transformer cores, whereas pre-manufactured metal sheets are stacked into the contour of a transformer core.
  • This method is characterized in that the metal sheets are stacked on a horizontal basis, that the stacked metal sheets are unified to a transformer core, that the transformer core is fixed to the horizontal basis, that the former horizontal basis is pivoted together with the transformer core to a vertical orientation and that the fixed transformer core is released from the basis.
  • this transformer core will be pivoted into a vertical position, for example by means of a crane, in order to make the further handling of the transformer easier.
  • a handling for example its transportation, can be executed with a crane.
  • Fig. 1 shows a top view 2 on a horizontally oriented exemplary mounting device.
  • a flat mounting area 12 with a length and a width of some meters each for example, is provided for pivoting around a swiveling axis 99.
  • a platform 14 is attached, the height of which corresponds at least to the maximum thickness of a transformer core which my be for example 2 m.
  • Four fixtures 110 are fixed to the surface of the flat mounting area by magnetic force, but also different number e.g. six or more is within the idea of the invention. Such fixtures are provided as a helping device for the positioning of the metal sheets on the stack.
  • Three beams being adjustable in length 22, 24, 26, 28, 30 are arranged in parallel on the flat mounting area, having a base module 22, 26, 30 (see Fig. 2 ) and a prolongation module 24, 28, 32 each. Also different number of beams, for example five, is possible. There may be more than one prolongation module provided for a base module each inserted into the other. For the second beam 26, 28, the prolongation direction is marked with the arrow 40, the other beams are comparable to this.
  • leveling elements 50, 52 are attached to the upper side of the first beam 22, 24 by means of magnetic force, whereas the first leveling elements 50 are attached on the base module of the first beam 22 and the second leveling elements 52, the thickness of which is bigger than that of the first leveling elements 50, are attached on the prolongation module of the first beam 24, what is not exactly shown in this drawing.
  • the second beam 26, 28 and the third beam 30, 32 are equipped with leveling elements in the same way, which is not shown in this drawing. All beams 22, 24, 30, 32 except the middle one 26, 28 are movable in the direction, which is marked with the arrows 42 and 44.
  • two second skid-like beams 20 are attached, on which the mounting device is supported, if it is in vertical position as shown in Fig. 3 , but also more than two skid-like beams 20 are covered by the idea of this invention.
  • Fig. 2 shows a side view on the same horizontal oriented exemplary mounting device.
  • the third beam 30, 32 is now shown in total. This beam is located on three supports 34, 36, whereas the base module of the first beam 30 is located on two first supports 34 and the prolongation module of the first beam is located on a second support 36.
  • the number of supports may differ from this example. It is also shown, that the first leveling elements 50, which are fixed on the base module 30 of the first beam, are thinner than the second leveling elements 52, which are fixed to the prolongation part 32 of the third beam.
  • All leveling elements 50, 52 form a plane basis for stacking a transformer core, respectively a transformer limb 90, as shown in this figure.
  • This transformer limb 90 is indicated to be composed of several metals sheets in Fig. 2 .
  • the transformer limb 90 is adjacent to the platform 14 on its left side. When the mounting device is turned into its vertical position, as shown in Fig. 3 , the whole weight load of the transformer core respectively of the transformer limb is on the platform 14 then.
  • a first skid-like beam 16 is shown, on which the mounting device stands in its horizontal position, whereas of course at least two of them are provided in order to keep it in a stable position.
  • Adjacent to the skid-like beam a support bend 18 is shown and adjacent to this a second skid-like beam 20 is shown, too.
  • Fig. 3 shows the same exemplary mounting device in its upright position.
  • a support beam 38 is attached along at least one first skid-like beam to stabilize the upright position.
  • Several fixing device to temporarily fix the transformer core on the flat mounting area are not shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Housings And Mounting Of Transformers (AREA)
EP08005409A 2008-03-22 2008-03-22 Montagevorrichtung für Transformatorenkerne Withdrawn EP2104119A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08005409A EP2104119A1 (de) 2008-03-22 2008-03-22 Montagevorrichtung für Transformatorenkerne
CN2009901001610U CN202145423U (zh) 2008-03-22 2009-03-10 用于制造由堆叠金属片构成的变压器铁心的装配装置
PCT/EP2009/001750 WO2009118099A1 (en) 2008-03-22 2009-03-10 Mounting device for transformer cores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08005409A EP2104119A1 (de) 2008-03-22 2008-03-22 Montagevorrichtung für Transformatorenkerne

Publications (1)

Publication Number Publication Date
EP2104119A1 true EP2104119A1 (de) 2009-09-23

Family

ID=39664500

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08005409A Withdrawn EP2104119A1 (de) 2008-03-22 2008-03-22 Montagevorrichtung für Transformatorenkerne

Country Status (3)

Country Link
EP (1) EP2104119A1 (de)
CN (1) CN202145423U (de)
WO (1) WO2009118099A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103964172A (zh) * 2014-05-21 2014-08-06 无锡铁新科技有限公司 铁心自动翻转台

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685435A (en) 1969-09-02 1972-08-22 Pshenichny Gennady I Stand for assembling and pressing magnetic circuits of power transformers
US3812567A (en) 1972-07-07 1974-05-28 I Gryazev Stand for assembling and pressing magnetic circuits of power transformers
DD128398A1 (de) 1976-11-29 1977-11-16 Horst Schwarze Vorrichtung zum schichten und aufrichten eines lamellierten magnetkernes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685435A (en) 1969-09-02 1972-08-22 Pshenichny Gennady I Stand for assembling and pressing magnetic circuits of power transformers
US3812567A (en) 1972-07-07 1974-05-28 I Gryazev Stand for assembling and pressing magnetic circuits of power transformers
DD128398A1 (de) 1976-11-29 1977-11-16 Horst Schwarze Vorrichtung zum schichten und aufrichten eines lamellierten magnetkernes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103964172A (zh) * 2014-05-21 2014-08-06 无锡铁新科技有限公司 铁心自动翻转台
CN103964172B (zh) * 2014-05-21 2016-06-08 无锡普天铁心股份有限公司 铁心自动翻转台

Also Published As

Publication number Publication date
WO2009118099A1 (en) 2009-10-01
CN202145423U (zh) 2012-02-15

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