WO2024113675A1 - High seismic transformer - Google Patents
High seismic transformer Download PDFInfo
- Publication number
- WO2024113675A1 WO2024113675A1 PCT/CN2023/092257 CN2023092257W WO2024113675A1 WO 2024113675 A1 WO2024113675 A1 WO 2024113675A1 CN 2023092257 W CN2023092257 W CN 2023092257W WO 2024113675 A1 WO2024113675 A1 WO 2024113675A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- capacitor
- base
- sleeve
- steel support
- outer contour
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 71
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 239000003292 glue Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 1
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
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
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- 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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
Definitions
- the present invention relates to the technical field of seismic transformers, and in particular to a highly seismic transformer.
- Instrument transformers have always played a vital role in power transmission and distribution. It is urgent to go international as soon as possible to meet the needs of special markets.
- power equipment products including instrument transformers and their brackets, swing under the action of seismic waves.
- the swing amplitude of the power equipment is the largest near its own frequency stage, and its acceleration is also the largest.
- the load on the power equipment is the largest, and the operating conditions of the product are the most stringent.
- the technical problem to be solved by the present invention is to provide a highly seismic-resistant transformer, which can solve the problem that general transformers cannot adapt to the seismic requirements of high-frequency earthquake areas.
- a highly seismic-resistant transformer characterized in that: it comprises a capacitor group, a base and a steel bracket; the capacitor group, the base and the steel bracket are arranged in sequence from top to bottom;
- the capacitor group includes an upper capacitor, a middle capacitor and a lower capacitor; the upper capacitor, the middle capacitor and the lower capacitor are arranged in sequence from top to bottom; the upper capacitor, the middle capacitor and the lower capacitor all have a sleeve, and the cross-sectional area of the sleeve gradually increases from the top to the bottom; the outer contour slope of the sleeve of the upper capacitor is greater than the outer contour slope of the sleeve of the middle capacitor; the outer contour slope of the sleeve of the middle capacitor is greater than the outer contour slope of the sleeve of the lower capacitor;
- the base is arranged on the bottom end of the lower capacitor, and the base is a shell-like structure, with a circular area in the middle of the upper surface of the base, and the circular area is circumferentially covered with bolt holes for connecting and fixing the capacitor group, and the circular area is a sealing area, and an O-ring is used to seal between the circular area and the capacitor group;
- the steel bracket is a prism-shaped frame structure, and the cross-sectional area of the steel bracket gradually decreases from the top to the bottom; the top of the steel bracket is connected to the lower surface of the base; the outer contour slope of the steel bracket is smaller than the slope of the outer contour of the lower capacitor bushing.
- a glue injection groove is provided at the connection between the lower capacitor and the base, and the glue injection groove is fully coated with waterproof coating.
- the bushing structure of the present invention is thin at the upper end and thick at the lower end, with light weight and low center of gravity, which can improve the stability and reliability of the product; the steel bracket adopts a conical structure, and the span is gradually increased at the lower end.
- the overall strength is high; as the height of the transformer changes, the bending cross-sectional area of the bushing of the capacitor group is improved to ensure that the stress of the capacitor group meets the seismic requirements; through the realization of seismic performance, it is ensured that the product can operate normally during and after an earthquake, avoiding secondary abnormalities such as overturning, which endangers the safety of the power station.
- FIG1 is a schematic structural diagram of a highly seismic-resistant mutual inductor according to the present invention.
- a highly seismic-resistant transformer comprises a capacitor group 1 , a base 2 and a steel support 3 ; the capacitor group 1 , the base 2 and the steel support 3 are arranged in sequence from top to bottom.
- the capacitor group 1 includes an upper capacitor 11, a middle capacitor 12 and a lower capacitor 13; the upper capacitor 11, the middle capacitor 12 and the lower capacitor 13 are arranged in sequence from top to bottom; the upper capacitor 11, the middle capacitor 12 and the lower capacitor 13 all have a sleeve, and the cross-sectional area of the sleeve gradually increases from the top to the bottom; the outer contour slope of the sleeve of the upper capacitor 11 is greater than the outer contour slope of the sleeve of the middle capacitor 12; the outer contour slope of the sleeve of the middle capacitor 12 is greater than the outer contour slope of the sleeve of the lower capacitor 13.
- the base 2 is arranged on the bottom end of the lower capacitor.
- the base 2 is a shell-like structure.
- the circular area is circumferentially covered with bolt holes for connecting and fixing the capacitor group.
- the circular area is a sealing area and is sealed with an O-ring between the capacitor group 1.
- the steel bracket 3 is a prism-shaped frame structure, and the cross-sectional area of the steel bracket 3 gradually decreases from the top to the bottom; the top of the steel bracket 3 is connected to the lower surface of the base; the outer contour slope of the steel bracket 3 is smaller than the slope of the outer contour of the lower capacitor bushing.
- a glue injection groove is provided at the connection between the lower capacitor 13 and the base 2, and the glue injection groove is fully coated with waterproof paint.
- the working principle of the present invention is: the bushing structure is thin at the upper end and thick at the lower end, with light weight and low center of gravity, which can improve the stability and reliability of the product; the steel bracket adopts a conical structure, and the span is gradually increased at the lower end.
- the overall strength is high; as the height of the transformer changes, the bending cross-sectional area of the bushing of the capacitor group is improved, ensuring that the stress of the capacitor group meets the seismic requirements; through the realization of seismic performance, it is ensured that the product can operate normally during and after an earthquake, avoiding secondary abnormalities such as overturning, which endangers the safety of the power station.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The present invention relates to a high seismic transformer. The high seismic transformer is characterized by comprising: a capacitor bank, a base and a steel support, wherein the capacitor bank, the base and the steel support are sequentially arranged from top to bottom. A sleeve structure is provided with a thin upper end and a thick lower end, and has a light weight and a low center of gravity, thereby improving the stability and reliability of a product. The steel support uses a conical structure, and the span of the lower end is gradually increased; therefore, compared with a steel support of a gun barrel structure and a conventional lattice type steel support, the overall strength of the steel support is high. As the height of the transformer changes, an anti-bending sectional area of a sleeve of the capacitor bank is improved, thus guaranteeing that the stress of the capacitor bank meets a seismic requirement. A seismic performance is achieved, so as to ensure that the product can operate normally during an earthquake and after an earthquake, and the safety of a power station is prevented from being threatened due to secondary abnormities such as overturning.
Description
本发明涉及抗震互感器技术领域，尤其涉及一种高抗震互感器。The present invention relates to the technical field of seismic transformers, and in particular to a highly seismic transformer.
互感器在电网输配电中一直起着至关重要的作用，尽快走向国际化，满足特殊市场的需求已经迫在眉睫。在地震发生过程中，电力设备产品包括互感器及其支架，在地震波的作用下发生摆动，随着震动频率的改变，在其自身频率阶段附近，电力设备的摆动幅度最大，其加速度也最大，此时对于电力设备承受的载荷最大，产品的运行工况最严苛。在此之后地震对设备的影响减弱，需要保证设备在地震过程中不会损坏，地震后满足正常运行要求。Instrument transformers have always played a vital role in power transmission and distribution. It is urgent to go international as soon as possible to meet the needs of special markets. During an earthquake, power equipment products, including instrument transformers and their brackets, swing under the action of seismic waves. As the vibration frequency changes, the swing amplitude of the power equipment is the largest near its own frequency stage, and its acceleration is also the largest. At this time, the load on the power equipment is the largest, and the operating conditions of the product are the most stringent. After this, the impact of the earthquake on the equipment weakens, and it is necessary to ensure that the equipment will not be damaged during the earthquake and meet the normal operation requirements after the earthquake.
本发明要解决的技术问题是提供一种高抗震互感器，能够解决一般的互感器无法适应高频率地震地区的抗震要求的问题。The technical problem to be solved by the present invention is to provide a highly seismic-resistant transformer, which can solve the problem that general transformers cannot adapt to the seismic requirements of high-frequency earthquake areas.
为解决上述技术问题，本发明的技术方案为：一种高抗震互感器，其特征在于：包括电容组、底座和钢支架；所述电容组、底座和钢支架自上而下依次设置；In order to solve the above technical problems, the technical solution of the present invention is: a highly seismic-resistant transformer, characterized in that: it comprises a capacitor group, a base and a steel bracket; the capacitor group, the base and the steel bracket are arranged in sequence from top to bottom;
所述电容组包括上节电容、中节电容和下节电容；所述上节电容、中节电容和下节电容自上而下依次设置；所述上节电容、中节电容和下节电容均具有一套管，且套管自顶端向底端方向截面积逐渐增大；所述上节电容的套管外轮廓坡度大于中节电容的套管外轮廓坡度；所述中节电容的套管外轮廓坡度大于下节电容的套管外轮廓坡度；The capacitor group includes an upper capacitor, a middle capacitor and a lower capacitor; the upper capacitor, the middle capacitor and the lower capacitor are arranged in sequence from top to bottom; the upper capacitor, the middle capacitor and the lower capacitor all have a sleeve, and the cross-sectional area of the sleeve gradually increases from the top to the bottom; the outer contour slope of the sleeve of the upper capacitor is greater than the outer contour slope of the sleeve of the middle capacitor; the outer contour slope of the sleeve of the middle capacitor is greater than the outer contour slope of the sleeve of the lower capacitor;
所述底座设置在下节电容的底端上，所述底座为壳体状结构，底座的上表面中间有一圆形区域，圆形区域周向布满螺栓孔用于连接和固定电容组，圆形区域为密封区域其与电容组之间采用O型密封圈密封；The base is arranged on the bottom end of the lower capacitor, and the base is a shell-like structure, with a circular area in the middle of the upper surface of the base, and the circular area is circumferentially covered with bolt holes for connecting and fixing the capacitor group, and the circular area is a sealing area, and an O-ring is used to seal between the circular area and the capacitor group;
所述钢支架为棱台状框架结构，所述钢支架自顶端向底端方向截面积逐渐减小；所述钢支架的顶端连接在底座的下表面上；所述钢支架的外轮廓坡度小于下节电容套管外轮廓的坡度。The steel bracket is a prism-shaped frame structure, and the cross-sectional area of the steel bracket gradually decreases from the top to the bottom; the top of the steel bracket is connected to the lower surface of the base; the outer contour slope of the steel bracket is smaller than the slope of the outer contour of the lower capacitor bushing.
进一步的，所述下节电容与底座的连接处设置有注胶槽，且注胶槽涂满防水涂料。Furthermore, a glue injection groove is provided at the connection between the lower capacitor and the base, and the glue injection groove is fully coated with waterproof coating.
本发明的优点在于：The advantages of the present invention are:
1）本发明中套管结构，上端细、下端粗，重量轻、重心低，可提升产品的稳定性及可靠性；钢支架采用锥形结构，下端逐渐增加跨距，相较于炮筒结构钢支架及传统格构式钢支架，其整体强度高；随着互感器的高度变化，改善电容组的套管抗弯截面积，保证电容组的应力满足抗震要求；通过抗震性能的实现，确保地震过程中及地震后产品能正常运行，避免倾覆等二次异常，危机电站安全。1) The bushing structure of the present invention is thin at the upper end and thick at the lower end, with light weight and low center of gravity, which can improve the stability and reliability of the product; the steel bracket adopts a conical structure, and the span is gradually increased at the lower end. Compared with the barrel structure steel bracket and the traditional lattice steel bracket, its overall strength is high; as the height of the transformer changes, the bending cross-sectional area of the bushing of the capacitor group is improved to ensure that the stress of the capacitor group meets the seismic requirements; through the realization of seismic performance, it is ensured that the product can operate normally during and after an earthquake, avoiding secondary abnormalities such as overturning, which endangers the safety of the power station.
下面结合附图和具体实施方式对本发明作进一步详细的说明。The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
图1为本发明的一种高抗震互感器的结构示意图。FIG1 is a schematic structural diagram of a highly seismic-resistant mutual inductor according to the present invention.
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本发明实施例的组件可以以各种不同的配置来布置和设计。In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.
因此，以下对在附图中提供的本发明的实施例的详细描述并非旨在限制要求保护的本发明的范围，而是仅仅表示本发明的选定实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
如图1所示的一种高抗震互感器，包括电容组1、底座2和钢支架3；电容组1、底座2和钢支架3自上而下依次设置。As shown in FIG. 1 , a highly seismic-resistant transformer comprises a capacitor group 1 , a base 2 and a steel support 3 ; the capacitor group 1 , the base 2 and the steel support 3 are arranged in sequence from top to bottom.
电容组1包括上节电容11、中节电容12和下节电容13；上节电容11、中节电容12和下节电容13自上而下依次设置；上节电容11、中节电容12和下节电容13均具有一套管，且套管自顶端向底端方向截面积逐渐增大；上节电容11的套管外轮廓坡度大于中节电容12的套管外轮廓坡度；中节电容12的套管外轮廓坡度大于下节电容13的套管外轮廓坡度。The capacitor group 1 includes an upper capacitor 11, a middle capacitor 12 and a lower capacitor 13; the upper capacitor 11, the middle capacitor 12 and the lower capacitor 13 are arranged in sequence from top to bottom; the upper capacitor 11, the middle capacitor 12 and the lower capacitor 13 all have a sleeve, and the cross-sectional area of the sleeve gradually increases from the top to the bottom; the outer contour slope of the sleeve of the upper capacitor 11 is greater than the outer contour slope of the sleeve of the middle capacitor 12; the outer contour slope of the sleeve of the middle capacitor 12 is greater than the outer contour slope of the sleeve of the lower capacitor 13.
底座2设置在下节电容的底端上，底座2为壳体状结构，底座2的上表面中间有一圆形区域，圆形区域周向布满螺栓孔用于连接和固定电容组，圆形区域为密封区域其与电容组1之间采用O型密封圈密封；The base 2 is arranged on the bottom end of the lower capacitor. The base 2 is a shell-like structure. There is a circular area in the middle of the upper surface of the base 2. The circular area is circumferentially covered with bolt holes for connecting and fixing the capacitor group. The circular area is a sealing area and is sealed with an O-ring between the capacitor group 1.
钢支架3为棱台状框架结构，钢支架3自顶端向底端方向截面积逐渐减小；钢支架3的顶端连接在底座的下表面上；钢支架3的外轮廓坡度小于下节电容套管外轮廓的坡度。The steel bracket 3 is a prism-shaped frame structure, and the cross-sectional area of the steel bracket 3 gradually decreases from the top to the bottom; the top of the steel bracket 3 is connected to the lower surface of the base; the outer contour slope of the steel bracket 3 is smaller than the slope of the outer contour of the lower capacitor bushing.
下节电容13与底座2的连接处设置有注胶槽，且注胶槽涂满防水涂料。A glue injection groove is provided at the connection between the lower capacitor 13 and the base 2, and the glue injection groove is fully coated with waterproof paint.
本发明的工作原理是：套管结构，上端细、下端粗，重量轻、重心低，可提升产品的稳定性及可靠性；钢支架采用锥形结构，下端逐渐增加跨距，相较于炮筒结构钢支架及传统格构式钢支架，其整体强度高；随着互感器的高度变化，改善电容组的套管抗弯截面积，保证电容组的应力满足抗震要求；通过抗震性能的实现，确保地震过程中及地震后产品能正常运行，避免倾覆等二次异常，危机电站安全。The working principle of the present invention is: the bushing structure is thin at the upper end and thick at the lower end, with light weight and low center of gravity, which can improve the stability and reliability of the product; the steel bracket adopts a conical structure, and the span is gradually increased at the lower end. Compared with the barrel structure steel bracket and the traditional lattice steel bracket, its overall strength is high; as the height of the transformer changes, the bending cross-sectional area of the bushing of the capacitor group is improved, ensuring that the stress of the capacitor group meets the seismic requirements; through the realization of seismic performance, it is ensured that the product can operate normally during and after an earthquake, avoiding secondary abnormalities such as overturning, which endangers the safety of the power station.
本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。The technicians in this industry should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the description are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.
Claims (2)
- 一种高抗震互感器，其特征在于：包括电容组、底座和钢支架；所述电容组、底座和钢支架自上而下依次设置；A highly seismic transformer, characterized in that it comprises a capacitor group, a base and a steel support; the capacitor group, the base and the steel support are arranged in sequence from top to bottom;所述电容组包括上节电容、中节电容和下节电容；所述上节电容、中节电容和下节电容自上而下依次设置；所述上节电容、中节电容和下节电容均具有一套管，且套管自顶端向底端方向截面积逐渐增大；所述上节电容的套管外轮廓坡度大于中节电容的套管外轮廓坡度；所述中节电容的套管外轮廓坡度大于下节电容的套管外轮廓坡度；The capacitor group includes an upper capacitor, a middle capacitor and a lower capacitor; the upper capacitor, the middle capacitor and the lower capacitor are arranged in sequence from top to bottom; the upper capacitor, the middle capacitor and the lower capacitor all have a sleeve, and the cross-sectional area of the sleeve gradually increases from the top to the bottom; the outer contour slope of the sleeve of the upper capacitor is greater than the outer contour slope of the sleeve of the middle capacitor; the outer contour slope of the sleeve of the middle capacitor is greater than the outer contour slope of the sleeve of the lower capacitor;所述底座设置在下节电容的底端上，所述底座为壳体状结构，底座的上表面中间有一圆形区域，圆形区域周向布满螺栓孔用于连接和固定电容组，圆形区域为密封区域其与电容组之间采用O型密封圈密封；The base is arranged on the bottom end of the lower capacitor, and the base is a shell-like structure, with a circular area in the middle of the upper surface of the base, and the circular area is circumferentially covered with bolt holes for connecting and fixing the capacitor group, and the circular area is a sealing area, and an O-ring is used to seal it with the capacitor group;所述钢支架为棱台状框架结构，所述钢支架自顶端向底端方向截面积逐渐减小；所述钢支架的顶端连接在底座的下表面上；所述钢支架的外轮廓坡度小于下节电容套管外轮廓的坡度。The steel bracket is a prism-shaped frame structure, and the cross-sectional area of the steel bracket gradually decreases from the top to the bottom; the top of the steel bracket is connected to the lower surface of the base; the outer contour slope of the steel bracket is smaller than the slope of the outer contour of the lower capacitor bushing.
- 根据权利要求1所述的一种高抗震互感器，其特征在于：所述下节电容与底座的连接处设置有注胶槽，且注胶槽涂满防水涂料。According to the highly seismic-resistant transformer of claim 1, it is characterized in that a glue injection groove is provided at the connection between the lower capacitor and the base, and the glue injection groove is fully coated with waterproof coating.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211537030.7 | 2022-12-02 | ||
| CN202211537030.7A CN116110683A (en) | 2022-12-02 | 2022-12-02 | High shock-resistant transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024113675A1 true WO2024113675A1 (en) | 2024-06-06 |
Family
ID=86258752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2023/092257 WO2024113675A1 (en) | 2022-12-02 | 2023-05-05 | High seismic transformer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN116110683A (en) |
| WO (1) | WO2024113675A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1136651A (en) * | 1997-07-23 | 1999-02-09 | Mitsui Constr Co Ltd | Aseismic building structure |
| CN102024555A (en) * | 2009-09-21 | 2011-04-20 | 江苏思源赫兹互感器有限公司 | Electronic voltage transformer |
| CN103364603A (en) * | 2013-07-24 | 2013-10-23 | 桂林电力电容器有限责任公司 | Pillar type capacitor voltage transformer |
| 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 |
| CN214476855U (en) * | 2020-10-16 | 2021-10-22 | 江苏思源赫兹互感器有限公司 | Shockproof oil immersion inversion type current transformer |
| CN216287920U (en) * | 2021-08-24 | 2022-04-12 | 淄博科微电子有限公司 | Voltage transformer |
-
2022
- 2022-12-02 CN CN202211537030.7A patent/CN116110683A/en active Pending
-
2023
- 2023-05-05 WO PCT/CN2023/092257 patent/WO2024113675A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1136651A (en) * | 1997-07-23 | 1999-02-09 | Mitsui Constr Co Ltd | Aseismic building structure |
| CN102024555A (en) * | 2009-09-21 | 2011-04-20 | 江苏思源赫兹互感器有限公司 | Electronic voltage transformer |
| CN103364603A (en) * | 2013-07-24 | 2013-10-23 | 桂林电力电容器有限责任公司 | Pillar type capacitor voltage transformer |
| 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 |
| CN214476855U (en) * | 2020-10-16 | 2021-10-22 | 江苏思源赫兹互感器有限公司 | Shockproof oil immersion inversion type current transformer |
| CN216287920U (en) * | 2021-08-24 | 2022-04-12 | 淄博科微电子有限公司 | Voltage transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116110683A (en) | 2023-05-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2024113675A1 (en) | High seismic transformer | |
| CN108193832A (en) | A kind of i-shape steel beam assembled connecting node and its construction method | |
| CN104801836B (en) | Oversea wind power generation jacket basis flange installation method | |
| CN105329767A (en) | Aircraft hoisting appliance | |
| CN206336951U (en) | A kind of derrick crane folding Undercarriage structure | |
| AU2018400528B2 (en) | Damper position-limiting device, tower and wind turbine | |
| CN109625671B (en) | Large-rigidity anti-shaking structure suitable for ring axial deformation compensation of low-temperature storage tank | |
| CN208304223U (en) | Welding gun protective case | |
| CN111075874A (en) | Large-scale optical instrument transportation vibration protection system | |
| CN208200140U (en) | Suspender | |
| CN206625598U (en) | A kind of safety rope fixing device of reusable edible | |
| CN212616039U (en) | Butterfly spring | |
| JP2024513316A (en) | Offshore wind turbine with floating platform | |
| CN201872900U (en) | Ship with steel-aluminium composite structure | |
| CN214204587U (en) | Dustproof device for butt joint of outdoor GIS equipment | |
| CN2690358Y (en) | Bridge for boarding vehicle | |
| KR20090093209A (en) | Turn-over device and method for hopper block | |
| CN216735217U (en) | Vertical transportation frock of offshore wind power tower barrel bottom section | |
| CN208982849U (en) | A kind of high-performing car is with exempting from damage type elastic hoop | |
| CN106836947A (en) | A kind of frame-type enamel plate Anti-corrosive chimney and its installation method | |
| CN205838399U (en) | A kind of band waist rope jib | |
| CN104214172A (en) | Test transition flange for marine engineering goose-neck jib crane and application thereof | |
| CN202766158U (en) | Intermediate arm, lower knuckle arm, boom and crane | |
| CN110415936A (en) | The inductor on magnetic core both ends inclined-plane | |
| CN201580894U (en) | Lifting appliance for counter balanced flange mast |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 23895841 Country of ref document: EP Kind code of ref document: A1 |