CN115467436B - Damping vibration-absorbing support for electric prop equipment - Google Patents
Damping vibration-absorbing support for electric prop equipment Download PDFInfo
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- CN115467436B CN115467436B CN202210949488.7A CN202210949488A CN115467436B CN 115467436 B CN115467436 B CN 115467436B CN 202210949488 A CN202210949488 A CN 202210949488A CN 115467436 B CN115467436 B CN 115467436B
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- 238000013016 damping Methods 0.000 title claims abstract description 73
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 73
- 239000010959 steel Substances 0.000 claims abstract description 73
- 230000035939 shock Effects 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims description 37
- 238000003466 welding Methods 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 8
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 7
- 238000009434 installation Methods 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 6
- 230000004044 response Effects 0.000 description 6
- 239000012212 insulator Substances 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003938 response to stress Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/22—Sockets or holders for poles or posts
- E04H12/2253—Mounting poles or posts to the holder
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0237—Structural braces with damping devices
Abstract
The invention relates to the technical field of disaster prevention of power transformation equipment, and discloses a damping and shock absorbing support for electric prop equipment. According to the damping vibration absorption support for the electric prop equipment, the vertical bearing component of the damping vibration absorption support is an inclined steel column, so that yield does not occur under the action of an earthquake, and the bearing capacity of the earthquake lower support can be ensured.
Description
Technical Field
The invention relates to the technical field of disaster prevention of power transformation equipment, in particular to a damping and shock-absorbing bracket for power strut equipment.
Background
The safety of the power equipment under the action of earthquake has important significance for the stable operation of the power system and post-earthquake relief. However, past seismic experience has shown that post-like electrical devices are highly vulnerable to earthquakes, particularly those composed of porcelain insulators. For example, in the earthquake of Wenchuan in 2008, the 171-seat transformer substation is damaged; in the 2013 reed mountain journeys, 626 pieces of equipment were damaged. Therefore, effective measures are required to improve the earthquake-resistant performance of the strut device.
Currently, some measures have been used to improve the anti-seismic performance of the prop device. Electrical equipment is typically composed of insulators, which are typically lower in material strength than steel, so that the dangerous section of the post-type equipment is typically at the root of the equipment. With the use of high-strength porcelain insulators and composite insulators, the metal brackets of some devices may also be referred to as shock-resistant weaknesses. In addition, according to the test result of the vibrating table, the support can greatly improve the input of the earthquake acceleration of the root of the equipment, so that the damage of the transformer sleeve is caused. By reinforcing the stent, the stent stiffness can be increased to reduce the power amplification of the stent. If the top plate of the transformer box body is reinforced by adding stiffening ribs, the acceleration amplification coefficient of the lifting seat can be reduced, and the anti-seismic performance of the sleeve is improved.
The arrangement of the shock absorbing and isolating device is also an effective way for improving the shock resistance of the strut type power equipment. For example, 4 symmetrically arranged steel wire rope vibration isolators are arranged at the bottom of a porcelain T-shaped breaker with the voltage level of 420kV to form a swing type vibration isolation support. Damping control of the strut type equipment can be achieved by adopting damping devices such as friction ring dampers, polyurethane devices, TMD dampers and lead alloy dampers, and vibration deformation is generated by arranging the dampers at the root parts of the equipment, so that the integral damping ratio of the equipment is increased, and the stress response of the equipment is reduced.
At present, the earthquake response can be reduced by means of reducing the power amplification factor by reinforcing the bracket and setting a damper to increase the damping ratio, but the following problems still exist:
1. For ultra-high voltage composite support equipment, the fundamental frequency of the equipment is low, the power amplification coefficient of the support is small, the effect of reinforcing the support is not large, and the support reinforcement mode is difficult to reduce earthquake response.
2. In the existing scheme, the yielding type shock absorbing and isolating device is usually used as a main vertical stress member at the same time, the rigidity is obviously reduced under the earthquake, and the top displacement of the equipment is larger and even exceeds the allowable range.
3. The traditional lattice type support has high bending rigidity and horizontal shearing deformation, and the upper support column equipment mainly has swinging deformation, so that the traditional lattice type support is provided with an axial damper, and the damping effect is poor.
Disclosure of Invention
(One) solving the technical problems
In order to solve the problems, the invention provides a damping bracket for electric prop equipment.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions:
The damping vibration attenuation bracket for the electric prop equipment comprises prop electric equipment and a damping vibration attenuation bracket, wherein the damping vibration attenuation bracket is composed of a trapezoid damping section and a lower rectangular lattice section, the trapezoid damping section is arranged above the lower rectangular lattice section, and the prop electric equipment is arranged above the trapezoid damping section.
Preferably, the trapezoidal damping section comprises an equipment mounting plate and four inclined steel columns, wherein the equipment mounting plate is connected with a pillar power device, the upper ends of the four inclined steel columns are fixedly arranged on the lower wall surface of the equipment mounting plate through an upper end plate, and the four inclined steel columns are expanded to one side far away from a central point.
Preferably, the lower rectangular lattice section comprises four upright posts, the four groups of upright posts are fixedly connected with the corresponding inclined steel posts through lower end plates and bolts respectively, and the upper ends of every two upright posts are connected through support web members.
Preferably, when the lower rectangular lattice type section is required to have high rigidity, diagonal bracing is arranged between every two upright posts, and two ends of the diagonal bracing are connected with the upright posts through node plates.
Preferably, the connection part of the inclined steel column and the upright column is provided with stiffening ribs, and reinforcing measures are added.
Preferably, a diagonal bracing damper is arranged between every two diagonal steel columns, and two ends of the diagonal bracing damper are hinged with the corresponding diagonal steel columns through damper node plates.
Preferably, a soft steel metal plate is arranged between every two inclined steel columns, the positions of the inclined steel columns corresponding to the soft steel metal plates are connected with the soft steel metal plates through welding parts, and the upper ends and the lower ends of the soft steel metal plates are not contacted with the equipment mounting plate and the support web members.
Preferably, the soft steel metal plate is any one of a trapezoid soft plate, a hexagonal soft steel metal plate or an open-pore trapezoid soft steel metal plate.
Preferably, the perforated trapezoid mild steel metal plate is provided with a mild steel metal plate hole.
For different strut power equipment, the trapezoidal damping section and the lower lattice section are required to be optimally designed, and the specific calculation process is as follows:
(1) Calculating upper leg power plant parameters including mass and fundamental frequency thereof;
(2) Calculating the equivalent stiffness of the upper pillar power equipment according to the fundamental frequency and the mass of the upper pillar power equipment;
(3) Assuming a rigidity reduction coefficient lambda k after the damping bracket and an inclination angle theta for installing the inclined steel column;
(4) Calculating equivalent rigidity and equivalent damping of the trapezoid damping segment, and calculating the earthquake response of the strut equipment with the damping support according to the response spectrum;
(5) If the damping effect does not meet the requirement, returning to the step (2) to reset the rigidity reduction coefficient lambdak and the inclination angle theta of the installation of the inclined steel column;
(6) If the damping effect meets the requirement, designing geometrical parameters of the trapezoid damping section according to the inclination angle theta of the installation of the inclined steel column;
(7) And inputting a large number of seismic waves to perform nonlinear calculation, and verifying the damping effect.
(III) beneficial effects
Compared with the prior art, the damping vibration absorption bracket for the electric power strut equipment has the following beneficial effects:
1. The vertical bearing member of the damping shock-absorbing support is an inclined steel column, does not yield under the action of an earthquake, and can ensure the bearing capacity of the earthquake lower support.
2. The damping vibration absorption bracket for the electric prop equipment integrates the damping device into the bracket, can be installed on site after prefabricated production in a factory, and is convenient for construction.
3. The damping support for the electric prop equipment has the advantages that the trapezoidal damping section can generate swinging deformation, and the damping effect is good.
4. The damping and shock absorbing support for the electric prop equipment can be made of soft steel metal plates, and is low in cost.
Drawings
FIG. 1 is a schematic view of the overall structure of a post power plant after installation of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a trapezoidal damping segment according to an embodiment of the present invention;
FIG. 3 is a three-dimensional schematic of a post power plant after installation of an embodiment of the invention;
FIG. 4 is a schematic view of a trapezoidal damping segment according to an embodiment of the present invention;
FIG. 5 is a schematic view of a structure of a mild steel sheet metal shape according to an embodiment of the invention;
fig. 6 is a schematic three-dimensional structure of a post power device after mounting an embodiment of the present invention.
In the figure: 1. a pillar electrical device; 2. damping vibration-absorbing support; 3. a trapezoidal damping section; 4. a lower rectangular lattice section; 5. an equipment mounting plate; 6. a diagonal steel column; 7. a diagonal bracing damper; 8. a lower end plate; 9. an upper end plate; 10. a column; 11. diagonal bracing; 12. a gusset plate; 13. stiffening ribs; 14. a damper gusset; 15. a welding part; 16. support web members; 17. a soft steel metal plate; 18. hexagonal mild steel metal plate; 19. a trapezoid soft steel metal plate is perforated; 20. and holes are formed in the soft steel metal plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
Referring to fig. 1-6, the damping vibration attenuation bracket for an electric power strut device provided in this embodiment includes a strut electric power device 1 and a damping vibration attenuation bracket 2, the damping vibration attenuation bracket 2 is composed of a trapezoidal damping section 3 and a lower rectangular lattice section 4, the trapezoidal damping section 3 is disposed above the lower rectangular lattice section 4, and the strut electric power device 1 is disposed above the trapezoidal damping section 3.
The trapezoid damping section 3 comprises an equipment mounting plate 5 and four inclined steel columns 6, the equipment mounting plate 5 is connected with the pillar power equipment 1, the upper ends of the four inclined steel columns 6 are fixedly mounted on the lower wall surface of the equipment mounting plate 5 through an upper end plate 9, and the four inclined steel columns 6 expand to the side far away from the center point.
The lower rectangular lattice section 4 comprises four upright posts 10, four groups of upright posts 10 are fixedly connected with corresponding inclined steel posts 6 through lower end plates 8 and bolts respectively, and the upper ends of every two upright posts 10 are connected through support web members 16.
When the lower rectangular lattice type section 4 is required to have high rigidity, diagonal braces 11 are arranged between every two upright posts 10, and two ends of each diagonal brace 11 are connected with the upright posts 10 through node plates 12.
The connection part of the inclined steel column 6 and the upright column 10 is provided with stiffening ribs 13, and reinforcing measures are added.
And inclined strut type dampers 7 are arranged between every two inclined steel columns 6, and two ends of each inclined strut type damper 7 are hinged with the corresponding inclined steel column 6 through damper node plates 14.
A soft steel metal plate 17 is arranged between every two inclined steel columns 6, the soft steel metal plate 17 is connected to the position of the inclined steel column 6 corresponding to the soft steel metal plate 17 through a welding part 15, and the upper end and the lower end of the soft steel metal plate 17 are not contacted with the equipment mounting plate 5 and the support web members 16.
The soft steel metal plate 17 is any one of a trapezoid soft plate or a hexagonal soft steel metal plate 18 or an open-pore trapezoid soft steel metal plate 19.
The perforated trapezoid soft steel metal plate 19 is provided with a soft steel metal plate hole 20.
The pillar power equipment 1 is arranged on the damping bracket 2, the top displacement limit value is firstly determined according to the electrical insulation requirement of the pillar power equipment 1, and the root section stress limit value is determined according to the mechanical strength of the insulator.
The invention firstly designs the upper trapezoid damping section 3, calculates parameters of the pillar electric power equipment 1 to build a model, and calculates the mass, the fundamental frequency and the equivalent rigidity of the pillar electric power equipment. Assuming the rigidity reduction coefficient lambdak of the damping vibration absorbing support 2 and the inclination angle theta of the installation of the inclined steel column 6, calculating the equivalent rigidity and equivalent damping of the trapezoid damping section 3, and calculating the earthquake response of the support column equipment 1 with the damping vibration absorbing support 2 according to the response spectrum. If the damping effect is not satisfied, the rigidity reduction coefficient lambdak and the inclination angle theta of the installation of the inclined steel column 6 are reset, and if the damping effect is satisfied, the geometric parameters of the trapezoid damping section 3 are designed according to the inclination angle theta of the installation of the inclined steel column, including the width of the bracket, the height of the trapezoid damping section 3 and the section of the inclined steel column 6, wherein the width of the bracket and the height of the trapezoid damping section 3 should consider the space in a station and the equipment connection requirement. And finally, determining the type of the damper 7, including the damping coefficient, the size and the mounting mode of the damper 7. After the design of the trapezoid damping section 3 is completed, the size of the lower rectangular lattice type section 4 is calculated according to the width of the bracket and the height of the trapezoid damping section, and the cross sections of the upright post 10 and the diagonal bracing 11 are designed.
When the damping vibration reduction support 2 is prefabricated, firstly, the geometric dimension and the section of the lower rectangular lattice type section 4 are designed, the lower rectangular lattice type section 4 is required to have larger rigidity, diagonal bracing web members 11 are required to be arranged on the lower rectangular lattice type section, and two ends of the diagonal bracing web members are connected with the upright posts 10 through node plates 12. The trapezoidal damping section 3 is connected with the lower rectangular lattice section 4 by adopting an end plate 8 and bolts, stiffening ribs 13 or other reinforcing measures are required to be arranged, the equipment mounting plate 5 is connected with the inclined steel column 6 through an upper plate end 9, and no stiffening ribs are arranged between the inclined steel column 6 and the upper end plate 9. When the diagonal bracing damper scheme is adopted, two ends of the damper 7 are hinged with the diagonal steel column 6 through the node 14 plates. When adopting the mild steel metal plate scheme, the end of the mild steel metal plate 17 is welded 15 with the inclined steel column and separated from the equipment mounting plate 5 and the bracket web member 16. The mild steel sheet metal may also employ hexagonal shapes 18 or perforated plates 19 (with one or more openings 20).
When the invention is implemented, the damping vibration-absorbing bracket is assembled in a factory, after the bracket is installed in a power station, the bracket is leveled through bolts at the bottom of the bracket, the upper support power equipment is installed, and finally, concrete piers are poured and fixed on the support base.
According to the damping vibration absorption support for the electric prop equipment, provided by the invention, the vertical bearing component of the damping vibration absorption support is an inclined steel column, so that yield does not occur under the action of an earthquake, and the bearing capacity of the earthquake lower support can be ensured.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. Damping vibration-absorbing support for an electric prop device, characterized by comprising a prop electric device (1) and a damping vibration-absorbing support (2), the damping vibration-absorbing support (2) being composed of a trapezoidal damping section (3) and a lower rectangular lattice section (4), the trapezoidal damping section (3) being arranged above the lower rectangular lattice section (4), the prop electric device (1) being arranged above the trapezoidal damping section (3);
The trapezoid damping section (3) comprises an equipment mounting plate (5) and four inclined steel columns (6), wherein the equipment mounting plate (5) is connected with the pillar power equipment (1), the upper ends of the four inclined steel columns (6) are fixedly arranged on the lower wall surface of the equipment mounting plate (5) through an upper end plate (9), and the four inclined steel columns (6) are expanded to the side far away from the center point; and inclined strut dampers (7) are arranged between every two inclined steel columns (6), and two ends of each inclined strut damper (7) are hinged with the corresponding inclined steel column (6) through damper node plates (14).
2. The damped shock mount for a power strut apparatus according to claim 1, wherein: the lower rectangular lattice type section (4) comprises four upright posts (10), the four groups of upright posts (10) are fixedly connected with corresponding inclined steel posts (6) through lower end plates (8) and bolts respectively, and the upper ends of every two upright posts (10) are connected through support web members (16).
3. The damped shock mount for an electrical post apparatus of claim 2, wherein: and inclined struts (11) are arranged between every two upright posts (10), and two ends of each inclined strut (11) are connected with the upright posts (10) through a gusset plate (12).
4. The damped shock mount for a power strut apparatus according to claim 1, wherein: stiffening ribs (13) are arranged at the joint of the inclined steel column (6) and the upright column (10).
5. The damped shock mount for a power strut apparatus according to claim 1, wherein: a soft steel metal plate (17) is arranged between every two inclined steel columns (6), the positions of the inclined steel columns (6) corresponding to the soft steel metal plates (17) are connected with the soft steel metal plates (17) through welding parts (15), and the upper ends and the lower ends of the soft steel metal plates (17) are not contacted with the equipment mounting plate (5) and the support web members (16).
6. The damped shock mount for a power strut apparatus according to claim 5, wherein: the soft steel metal plate (17) is any one of a trapezoid soft plate, a hexagonal soft steel metal plate (18) or an open-pore trapezoid soft steel metal plate (19).
7. The damped shock mount for a power strut apparatus according to claim 6, wherein: the perforated trapezoid soft steel metal plate (19) is provided with a soft steel metal plate hole (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210949488.7A CN115467436B (en) | 2022-08-09 | 2022-08-09 | Damping vibration-absorbing support for electric prop equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210949488.7A CN115467436B (en) | 2022-08-09 | 2022-08-09 | Damping vibration-absorbing support for electric prop equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115467436A CN115467436A (en) | 2022-12-13 |
| CN115467436B true CN115467436B (en) | 2024-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210949488.7A Active CN115467436B (en) | 2022-08-09 | 2022-08-09 | Damping vibration-absorbing support for electric prop equipment |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102605865A (en) * | 2011-12-21 | 2012-07-25 | 同济大学 | Extra-high-voltage electrical equipment shock-insulating supporting seat with adjustable rigidity and damping |
| CN202349088U (en) * | 2011-11-09 | 2012-07-25 | 中国电力科学研究院 | Damping device for bracket of electrical equipment |
| EP2574772A1 (en) * | 2011-09-30 | 2013-04-03 | Siemens Aktiengesellschaft | Wind turbine tower |
| KR101426204B1 (en) * | 2013-07-04 | 2014-08-01 | 창원대학교 산학협력단 | Seismic device of wind power generator using the ball joint |
| CN105735732A (en) * | 2016-03-17 | 2016-07-06 | 同济大学 | Rigidity-adjustable energy dissipation and damping support for extra-high voltage transformation equipment and application thereof |
| CN109346952A (en) * | 2018-11-08 | 2019-02-15 | 中国电力工程顾问集团西南电力设计院有限公司 | Ultra-high voltage converter station low-voltage direct by-pass switch circuit shock-damping structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10900533B2 (en) * | 2017-05-31 | 2021-01-26 | Abb Schweiz Ag | Coupling device, support structure and methods |
-
2022
- 2022-08-09 CN CN202210949488.7A patent/CN115467436B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2574772A1 (en) * | 2011-09-30 | 2013-04-03 | Siemens Aktiengesellschaft | Wind turbine tower |
| CN202349088U (en) * | 2011-11-09 | 2012-07-25 | 中国电力科学研究院 | Damping device for bracket of electrical equipment |
| CN102605865A (en) * | 2011-12-21 | 2012-07-25 | 同济大学 | Extra-high-voltage electrical equipment shock-insulating supporting seat with adjustable rigidity and damping |
| KR101426204B1 (en) * | 2013-07-04 | 2014-08-01 | 창원대학교 산학협력단 | Seismic device of wind power generator using the ball joint |
| CN105735732A (en) * | 2016-03-17 | 2016-07-06 | 同济大学 | Rigidity-adjustable energy dissipation and damping support for extra-high voltage transformation equipment and application thereof |
| CN109346952A (en) * | 2018-11-08 | 2019-02-15 | 中国电力工程顾问集团西南电力设计院有限公司 | Ultra-high voltage converter station low-voltage direct by-pass switch circuit shock-damping structure |
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| CN115467436A (en) | 2022-12-13 |
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