Apparatus and method for damping vibrations in high-voltage devices

Patent metadata

Field	Value
Publication number	US-11817692-B2
Application number	US-201917266688-A
Country	US
Kind code	B2
Filing date	Jul 9, 2019
Priority date	Aug 8, 2018
Publication date	Nov 14, 2023
Grant date	Nov 14, 2023

Abstract

An apparatus for damping vibrations in high-voltage devices has a support arrangement for the high-voltage device. The support arrangement includes support elements interconnected by connection elements. Intermediate elements, in particular coated washers, are arranged between the connection elements and the support elements and/or between different support elements. There is also described a method for damping vibrations, in which connection elements spatially fix support elements of the support arrangement of a high-voltage device in a mechanically stable manner. When mechanical vibrations occur on the high-voltage device, the connection elements dampen the mechanical vibration in a defined manner via a predetermined sliding friction with the support elements and via a spatially predetermined play in relation to the support elements.

First claim

The invention claimed is:

1. An apparatus for damping vibrations in a high-voltage device, the apparatus comprising:
a carrier arrangement for elements of the high-voltage device, the carrier arrangement including support elements that are connected to one another via connecting elements;
intermediate elements configured to damp vibrations, said intermediate elements being arranged between said connecting elements and said support elements and/or between different said support elements;
a coating of said intermediate elements having a determined coefficient of sliding friction on a material of said support elements, and wherein the coefficient of sliding friction lies in a range of 0.01 to 0.3 and/or above 1.

2. The apparatus according to claim 1 , wherein said intermediate elements are coated washers.

3. The apparatus according to claim 1 , wherein said intermediate elements are coated with at least one material selected from the group consisting of a polymer, a metal, and a graphite.

4. The apparatus according to claim 3 , wherein said intermediate elements are coated with PTFE, PCTFE, and/or silver.

5. The apparatus according to claim 1 , wherein said intermediate elements are washers composed of an elastic material selected from the group consisting of plastic and rubber.

6. The apparatus according to claim 1 , wherein said carrier arrangement is a lattice pylon with a steel framework and/or a T-shaped support.

7. The apparatus according to claim 1 , wherein said support elements are T beams or double-T beams composed of steel.

8. The apparatus according to claim 1 , wherein said connecting elements are screws with nuts and/or bolts.

9. The apparatus according to claim 8 , wherein said connecting elements are configured to connect said support elements via openings formed in said support elements.

10. The apparatus according to claim 9 , wherein said openings are configured to enable said connecting elements to be movably mounted in said support elements with a degree of freedom adapted to an expected vibration to be damped and/or a predetermined earthquake intensity level.

11. The apparatus according to claim 9 , wherein said connecting elements have a play within said openings in a range of micrometers and up to millimeters.

12. The apparatus according to claim 1 , wherein in each case at least one intermediate element in conjunction with at least one support element and with at least one connecting element forms a damping element for damping mechanical vibrations.

13. The apparatus according to claim 12 , wherein the damping element for damping mechanical vibrations is formed by at least two different intermediate elements in conjunction with at least two support elements, and with at least two different connecting elements.

14. The apparatus according to claim 1 , wherein a damping element for damping mechanical vibrations is formed by a stack of different intermediate elements, the stack having an intermediate element with a coating for lower friction and an intermediate element with higher friction, in between two support elements and/or between a respective carrier and a connecting element.

15. The apparatus according to claim 1 , wherein the apparatus is comprised by a power transmission pylon, a support structure of a high-voltage circuit breaker and/or a support structure of an instrument transformer.

16. A method for damping vibrations in a high-voltage device, the method which comprises:
spatially fixing support elements of a carrier arrangement of the high-voltage device with connecting elements in a mechanically stable arrangement;
damping mechanical vibrations that occur on the high-voltage device with the connecting elements in a defined manner by way of a predetermined sliding friction relative to the support elements, and also by way of spatially predetermined play with respect to the support elements; and
damping the mechanical vibrations between support elements with intermediate elements arranged between the support elements and/or between support elements and connecting elements and which have a defined coefficient of sliding friction between the support element and the intermediate element within a range of 0.01 to 0.3 and/or a range of greater than 1 due to a coating of the intermediate elements.

17. The method according to claim 16 , which comprises setting the play between the connecting elements and the support elements in a range from micrometers up to millimeters.

Assignees

• Siemens Energy Global Gmbh & Co Kg

Inventors

• Heinrich Ulf
• Lehmann Dirk
• Ramos Cordero Edgar Armando
• Riedel Frank

Classifications

• H02G7/14 Primary

  Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound {(damping spacers H02G7/125)} · CPC title

• F16F7/128

  characterised by the members, e.g. a flat strap, yielding through stretching, pulling apart · CPC title

• E04H12/10

  Truss-like structures · CPC title