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DE-102017203591-B4 - Support arrangement and transformer with support arrangement

DE102017203591B4DE 102017203591 B4DE102017203591 B4DE 102017203591B4DE-102017203591-B4

Abstract

A support arrangement for a conductor (16, 17) of a transformer (20) with a support frame comprising a first support beam (1) and a second support beam (2), which are connected to each other via at least a first crossbeam (7), characterized in that a third support beam (3) is connected to the second support beam (2) via a second crossbeam (9), wherein the first support beam (1) and the second support beam (2) are located in a first layer (8) and the third support beam (3) and the second support beam (2) are located in a second layer (10) and the layers (8, 10) intersect each other, wherein the second support beam (2) is formed as a double wall, and the first crossbeam (7) projects into a receiving opening located between walls (13a, 13b) of the second support beam (2) and the second crossbeam (9) projects into a through-opening (14) recessed into a wall (13a, 13b) intervenes.

Inventors

  • Johann Schlager
  • Jens Hoppe
  • Vassil Velkov
  • Thomas Wende

Assignees

  • Siemens Energy Global GmbH & Co. KG

Dates

Publication Date
20260513
Application Date
20170306

Claims (17)

  1. A support arrangement for a conductor (16, 17) of a transformer (20) with a support frame comprising a first support beam (1) and a second support beam (2), which are connected to each other via at least a first crossbeam (7), characterized in that a third support beam (3) is connected to the second support beam (2) via a second crossbeam (9), wherein the first support beam (1) and the second support beam (2) lie in a first layer (8) and the third support beam (3) and the second support beam (2) lie in a second layer (10) and the layers (8, 10) intersect each other, wherein the second support beam (2) is formed as a double wall, and the first crossbeam (7) projects into a receiving opening located between walls (13a, 13b) of the second support beam (2) and the second crossbeam (9) projects into a through-opening (14) recessed into a wall (13a, 13b) intervenes.
  2. Support arrangement according to Claim 1 characterized in that the support frame is a box frame.
  3. Support arrangement according to Claim 1 or 2 , characterized in that the first traverse (7) has an attachment point for a first line (16) and the second traverse (9) has an attachment point for the first line (16).
  4. Support arrangement according to one of the Claims 1 until 3 , characterized in that in a revolution around the support beams (1, 2, 3, 4) a sequence of crossbeams (7, 9, 11, 12) is carried out between the support beams (1, 2, 3, 4).
  5. Support arrangement according to one of the Claims 1 until 4 , characterized in that a fourth support beam (4) is connected to the third support beam (3) via a third crossbeam (11) and to the first support beam (1) via a fourth crossbeam (12).
  6. Support arrangement according to one of the Claims 1 until 5 , characterized in that the support frame is essentially rectangular and box-shaped.
  7. Support arrangement according to one of the Claims 1 until 6 , characterized in that the support beams (1, 2, 3, 4) are arranged at the vertices of a polygon, in particular a triangle or a quadrilateral.
  8. Support arrangement according to one of the Claims 1 until 7 , characterized in that the support beams (1, 2, 3, 4) have a substantially rectangular outline in cross-section, wherein two support beams (1, 2, 3, 4) which are connected to each other via a crossbeam (7, 9, 11, 12) face each other a short and a long rectangular side.
  9. Support arrangement according to one of the Claims 1 until 8 , characterized in that at least one of the crossbeams (7, 9, 11, 12) is positively inserted into a recess of a supporting beam (1, 2, 3, 4) carrying it.
  10. Support arrangement according to one of the Claims 1 until 9 , characterized in that at least one of the support beams (1, 2, 3, 4) is double-walled, wherein a receiving opening for a crossbeam (7, 9, 11, 12) is arranged between the walls (13a, 13b).
  11. Support arrangement according to one of the Claims 1 until 10 , characterized in that a through opening (14) for receiving a crossbeam (7, 9, 11, 12) is embedded in a wall (13a, 13b) of a support beam (1, 2, 3, 4).
  12. Support arrangement according to one of the Claims 1 until 10 , characterized in that the support frame is connected to an active part (22, 23) of a transformer (20), in particular via a transverse tab (15).
  13. Support arrangement according to one of the Claims 1 until 12 , characterized in that the support frame is connected to a passive part (21) of a transformer (20), in particular via a transverse tab (15).
  14. Support arrangement according to one of the Claims 1 until 13 , characterized in that the support frame has an electrically insulating effect.
  15. Support arrangement according to one of the Claims 1 until 14 , characterized in that a first support frame and a second support frame are joined together.
  16. Transformer (20) comprising an active part (22, 23) which is arranged surrounded by a passive part (21), characterized in that a support arrangement according to one of the Claims 1 until 13 is arranged between the active part (22, 23) and the passive part (21).
  17. Transformer (20) after Claim 16 , characterized in that at least one output (16, 17) of the transformer (20) is intercepted at the support arrangement.

Description

The invention relates to a support arrangement for a transformer conductor with a support frame comprising a first support beam and a second support beam, which are connected to each other via at least a first crossbeam. A support arrangement is, for example, from the generic international publication. WO 02/ 063 721 A2 A support frame for routing transformer cables is described therein. The support frame has several support beams. The support beams are connected to each other via crossbeams. All support beams are arranged in a single layer, essentially lying almost identically. This creates a low-profile support frame that serves to guide the transformer cables across a flat surface. However, due to this design, the torsional stiffness of the support frame is relatively low. The long-term stability of such support arrangements is considered critical due to the alternating magnetic fields occurring at a transformer and the resulting fluctuating stresses. Therefore, a compromise must always be made between a compact support arrangement and the necessary stiffness of such a structure. This compromise reaches its limits, especially when dealing with large masses that need to be managed. From the 2 the CN 107 068 335 A A structure made of profiled bars emerges. In the DE 20 2008 015 922 U1 A mounting platform with platform parts, each with one-piece support struts, is described. The object of the invention is therefore to provide a support arrangement which can safely position large masses in a long-term stable manner. According to the invention, the problem is solved in a support arrangement of the type mentioned at the outset by a third support beam being connected to the second support beam via a second crossbeam, wherein the first support beam and the second support beam are in a first layer and the third support beam and the second support beam are in a second layer and the layers intersect each other, wherein the second support beam is formed as a double wall, and the first crossbeam projects into a receiving opening located between walls of the second support beam and the second crossbeam engages in a through-opening embedded in a wall. A transformer is an electrical energy transmission device used to convert electrical energy. Using the transformer principle, voltages are changed by means of a transformer. The resulting alternating fields cause forces in the transformer's surroundings. In particular, vibrations can occur at the transformer. Such vibrations are difficult to eliminate and manifest themselves, for example, as a typical transformer hum. Transformers must be connected to an electrical power transmission network via cables. These cables supply an electric current to the transformer's coils. Transformer coils are usually equipped with a core that carries a magnetic flux, thus increasing the transformer's efficiency. The coils and core together are referred to as the active part of the transformer. The transformer's cables must be routed to and positioned within this active part, specifically to the coils of the active part. The cables that connect to the active part of the transformer are typically called leads. Leads can be routed through the transformer's housing to the active part, for example, via bushings such as air bushings or gas bushings. A housing can enclose the active part of the transformer and provide mechanical protection. The housing is also referred to as the passive part of the transformer. For electrical insulation, the housing can be filled with an electrically insulating fluid, such as an oil, an ester, or a gaseous substance like sulfur hexafluoride. Housings (e.g. transformer tanks) can preferably be electrically conductive and grounded. A support structure is used to position transformer conductors. A support structure comprises a support frame that provides attachment points near the active part of the transformer to secure the conductors. The support frame of the support structure includes, for example, support beams, which can also serve to transfer support forces. Support beams are essentially elongated elements running along a vertical axis, serving as the base for the support frame. The support beams can, for example, be vertically aligned with a vertical axis and serve to support a crossbeam. A crossbeam connects two support beams, with the crossbeam running essentially perpendicular to the vertical axis of the support beams. Thus, an arrangement of a first support beam and a second support beam is advantageously parallel, particularly in the direction of a vertical axis, with a first crossbeam connecting the first support beam to the second support beam. The crossbeam is connected to at least one of the support beams, and in particular to both support beams. The first support beam is supported by a crossbeam. Advantageously, a shear force can also be transmitted between the support beams via the crossbeam. The first and second support beams should be essentially