High-voltage power transmission and transformation system and high-voltage bus bridge assembly thereof

Abstract

The utility model discloses a high-voltage bus bridge assembly, which comprises a bridge cylinder assembly and a bus cable, the bridge cylinder assembly is internally provided with a wire accommodating cavity, the bus cable is packaged in the wire accommodating cavity, and the bridge cylinder assembly is provided with a wiring terminal electrically connected with the bus cable. According to the high-voltage bus bridge assembly, comprehensive structural protection can be provided for the bus cable, and potential safety hazards in the working and running process of the high-voltage bus bridge are reduced. The utility model also discloses a high-voltage power transmission and transformation system using the high-voltage bus bridge assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting equipment for high-voltage power transmission and transformation systems, and in particular to a high-voltage busbar bridge assembly. The utility model also relates to a high-voltage power transmission and transformation system using the high-voltage busbar bridge assembly. Background Art

[0002] In current high-voltage power transmission and transformation systems, high-voltage busbar bridges are usually used to connect high-voltage equipment in substations or power plants. They are extremely common in the current high-voltage power transmission and transformation system line layout and are mostly used to ensure reliable conduction between high-voltage equipment and high-voltage power transmission and transformation line systems. The performance of high-voltage busbar bridges is of great significance to the overall operational capability of high-voltage power transmission and transformation systems and their related supporting equipment.

[0003] Currently, the most commonly used high-voltage busbar bridges in the industry use simple supporting structures such as open or semi-open through-channels to support and moderately secure the cables, ensuring basic busbar cable layout requirements. However, their main structures cannot provide reliable and comprehensive protection for the busbar cables. As a result, during actual operation, the busbar cables are still exposed to the external environment, causing them to be corroded by wind, sand, dust, and rain. Long-term exposure to such conditions greatly shortens the service life of the busbar cables and has a serious adverse impact on the reliable connectivity and stable operation of the high-voltage busbar bridge and its related high-voltage lines.

[0004] In addition, the existing high-voltage bus bridge fails to provide complete structural protection for the bus cables and their supporting electrical connection components. As a result, in actual operation, when workers carry out inspection and maintenance or installation and other related operations near the high-voltage bus bridge, or when passers-by pass by near the high-voltage bus bridge, there is still a risk of electric shock injury to people, posing a safety hazard to the operation of the high-voltage bus bridge and its supporting high-voltage transmission and transformation system components.

[0005] In view of this, how to optimize the assembly structure of the high-voltage busbar bridge to provide comprehensive structural protection for the busbar cables and reduce the safety hazards during the operation of the high-voltage busbar bridge is an important technical problem that technical personnel in this field currently need to solve. Utility Model Content

[0006] The purpose of this utility model is to provide a high-voltage busbar bridge assembly that can provide comprehensive structural protection for busbar cables and reduce safety hazards during the operation of the high-voltage busbar bridge. Another purpose of this utility model is to provide a high-voltage power transmission and transformation system using the high-voltage busbar bridge assembly.

[0007] In order to solve the above technical problems, the utility model provides a high-voltage busbar bridge assembly, including a bridge tube assembly with a wire accommodating cavity inside and a busbar cable encapsulated in the wire accommodating cavity, and the bridge tube assembly is provided with a connection terminal electrically connected to the busbar cable.

[0008] Preferably, the bridge tube assembly includes supporting bridge tubes arranged in two sections along its length direction, and also includes a transition bridge tube arranged in sequence along the length direction of the bridge tube assembly and connected between the two supporting bridge tubes. The interiors of the supporting bridge tubes and the transition bridge tubes both have wiring cavities, and each of the wiring cavities is connected in sequence along the length direction of the bridge tube assembly to form the wire accommodating cavity.

[0009] Preferably, an interface bridge tube that can be connected to high-voltage equipment is protruding from the outer wall of the supporting bridge tube, and the wiring terminal is located in the interface bridge tube.

[0010] Preferably, the outer wall of the end portion of the supporting bridge tube along the length direction of the bridge tube assembly has an end operation hole connected to the wire accommodating cavity, and the end operation hole is opened and closed with an end door panel.

[0011] Preferably, a side operating hole communicating with the line accommodating cavity is provided on the side wall of the transition bridge tube, and a side cover plate is opened and closed on the side operating hole.

[0012] Preferably, ventilation holes are provided on each side wall of the supporting bridge tube and the transition bridge tube.

[0013] Preferably, each side wall of the supporting bridge tube and the transition bridge tube is provided with a dustproof net aligned with the ventilation hole.

[0014] Preferably, a plurality of supporting beams are fixedly arranged in the wire accommodating cavity, the supporting beams extending along the width direction of the bridge barrel assembly, and the supporting beams are sequentially arranged along the length direction of the bridge barrel assembly and are clearance-matched;

[0015] A plurality of insulating terminals that can be connected to and assembled and disassembled with the busbar cables are fixedly provided on the supporting crossbeam, and an insulating box is sleeved at the connection between the busbar cables and the insulating terminals.

[0016] Preferably, a lifting beam extending along the width direction is fixedly provided on the outer wall of the bridge tube assembly, and there are at least two lifting beams, and each of the lifting beams is arranged in sequence along the length direction of the bridge tube assembly and is clearance-fitted.

[0017] The present utility model also provides a high-voltage power transmission and transformation system, comprising interconnected high-voltage equipment and a high-voltage busbar bridge assembly, wherein the high-voltage busbar bridge assembly is the high-voltage busbar bridge assembly as described in any one of the above items.

[0018] Compared with the above-mentioned background technology, the high-voltage busbar bridge assembly provided by the present invention, during its assembly and operation, encapsulates the busbar cable as a whole in the cable cavity, thereby utilizing the enclosure structure of the bridge tube assembly itself to form a circumferential and axial all-round covering for the busbar cable, thereby forming an overall structural protection for the busbar cable. In this way, after the equipment is assembled, even if the high-voltage busbar bridge assembly is in a harsh outdoor working environment, due to the structural protection of the busbar cable by the bridge tube assembly, it can effectively prevent rain, wind, sand or dust in the external environment from eroding and damaging the busbar cable, ensuring the integrity of the main structure of the busbar cable and the stability of the cable performance, thereby ensuring the reliable conduction of the corresponding high-voltage power transmission and transformation lines and the stable operation of related high-voltage equipment. In addition, arranging the busbar cable as a whole in the reliable enclosure structure of the bridge tube assembly can effectively avoid the structural exposure of the busbar cable, thereby eliminating the risk of electric shock injury to nearby personnel due to the exposure of the busbar cable, thereby greatly improving the safety of the busbar cable installation and the overall operation of the high-voltage power transmission and transformation lines.

[0019] In another preferred embodiment of the present invention, the bridge tube assembly includes supporting bridge tubes arranged in two sections along its length direction, and also includes a transition bridge tube arranged in sequence along the length direction of the bridge tube assembly and connected between the two supporting bridge tubes. The interiors of the supporting bridge tubes and the transition bridge tubes are provided with wiring cavities, and the wiring cavities are connected in sequence along the length direction of the bridge tube assembly to form the wiring cavity. The supporting bridge tubes and the transition bridge tubes are sequentially spliced ​​and assembled to form the main structure of the bridge tube assembly, so that when problems such as damage occur in the local structure of the bridge tube assembly, the transition bridge tube or the supporting bridge tube at the damaged part can be replaced separately to ensure that the overall structure of the bridge tube assembly can always provide sufficient all-round structural protection for the busbar cable, thereby avoiding the replacement and maintenance of the bridge tube assembly as a whole, thereby reducing the installation and maintenance costs of the high-voltage busbar bridge assembly accordingly, and further improving its adaptability to working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A partial perspective front view of a high-voltage busbar bridge assembly provided by a specific embodiment of the utility model;

[0022] Figure 2 for Figure 1 A partial perspective top view of

[0023] Figure 3 for Figure 1 Side view of;

[0024] Figure 4 for Figure 1 Side view of .

[0025] in:

[0026] 10-busbar cable;

[0027] 11-bridge tube assembly; 111-wire cavity; 112-support bridge tube; 113-transition bridge tube; 114-fastening bolts; 115-interface bridge tube; 116-end door panel; 117-door lock; 118-side cover; 119-ventilation hole; 110-dust screen;

[0028] 12-terminal blocks;

[0029] 13-support beam; 131-insulation terminal; 132-insulation box;

[0030] 14- Hoisting beam;

[0031] 15-Safety warning signs. DETAILED DESCRIPTION

[0032] The core of the present utility model is to provide a high-voltage busbar bridge assembly, which can provide comprehensive structural protection for busbar cables and reduce safety hazards during the operation of the high-voltage busbar bridge; in addition, a high-voltage power transmission and transformation system using the above-mentioned high-voltage busbar bridge assembly is also provided.

[0033] In order to enable those skilled in the art to better understand the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific implementation methods.

[0034] It should be noted in advance that, in this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integral connection; they may refer to direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0035] In addition, in the present invention, unless otherwise clearly stipulated and limited, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, or the first and second features not being in direct contact but being in contact through another feature between them.

[0036] In addition, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and diagonally above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply indicates that the first feature is lower in level than the second feature. The terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0037] Please refer to Figures 1 to 4 .

[0038] In a specific embodiment, the high-voltage busbar bridge assembly provided by the present invention includes a bridge tube assembly 11 having a wire accommodating cavity 111 therein and a busbar cable 10 encapsulated in the wire accommodating cavity 111 , and a connection terminal 12 electrically connected to the busbar cable 10 is provided on the bridge tube assembly 11 .

[0039] During assembly and operation, the busbar cable 10 is completely encapsulated in the cable cavity 111 , thereby utilizing the enclosure structure of the bridge tube assembly 11 itself to form a full-scale circumferential and axial covering for the busbar cable 10 , thereby forming an overall structural protection for the busbar cable 10 .

[0040] In this way, after the equipment is assembled, even if the high-voltage busbar bridge assembly is in a harsh outdoor working environment, the structural protection of the busbar cable 10 by the bridge tube assembly 11 can effectively prevent the busbar cable 10 from being eroded and damaged by rain, wind, sand or dust in the external environment, thereby ensuring that the main structure of the busbar cable 10 is intact and the cable performance is stable, thereby ensuring that the corresponding high-voltage transmission and transformation lines are reliably conductive and the related high-voltage equipment can operate stably.

[0041] In addition, arranging the busbar cable 10 as a whole in the reliable enclosure structure of the bridge tube assembly 11 can effectively avoid the structural exposure of the busbar cable 10, thereby eliminating the risk of electric shock injury to nearby personnel due to the exposure of the busbar cable 10, thereby greatly improving the safety of the busbar cable 10 during the installation and overall operation of the high-voltage transmission and transformation line.

[0042] It is not difficult to understand that, considering the processing conditions and difficulty of processing operations in actual applications, the bridge tube assembly 11 is usually a square columnar structure, and the wire cavity 111 inside it is also a chamber with a square cross-section. Of course, if there are special working conditions in actual applications, the bridge tube assembly 11 can also be a hollow structure of a cylinder or other shape, and the shape of the wire cavity 111 can also be adjusted accordingly. In short, it is based on being able to meet the actual application needs of the high-voltage busbar bridge assembly and meet the installation and connection requirements of the high-voltage busbar bridge assembly and related high-voltage equipment and lines.

[0043] Generally, the material of the bridge tube assembly 11 is preferably insulating material. If working conditions permit, metal parts with a relatively strong and reliable texture can also be used. In actual applications, the specific material of the bridge tube assembly 11 can be flexibly selected and adjusted according to actual application requirements. In principle, as long as it can meet the actual application needs of the high-voltage busbar bridge assembly, it can be used.

[0044] Specifically, the bridge tube assembly 11 includes supporting bridge tubes 112 arranged in two sections along its length direction, and also includes a transition bridge tube 113 arranged in sequence along the length direction of the bridge tube assembly 11 and connected between the two supporting bridge tubes 112. The interiors of the supporting bridge tubes 112 and the transition bridge tubes 113 both have wiring cavities, and the wiring cavities are connected in sequence along the length direction of the bridge tube assembly 11 to form a wire accommodating cavity 111.

[0045] In this way, each supporting bridge tube 112 and each transition bridge tube 113 are spliced ​​and assembled in sequence to form the main structure of the bridge tube assembly 11. Therefore, when problems such as damage occur in the local structure of the bridge tube assembly 11, the transition bridge tube 113 or the supporting bridge tube 112 at the damaged part can be replaced separately to ensure that the overall structure of the bridge tube assembly 11 can always provide sufficient all-round structural protection for the bus cable 10, thereby avoiding the replacement and maintenance of the entire bridge tube assembly 11, thereby reducing the installation and maintenance costs of the high-voltage bus bridge assembly accordingly and further improving its adaptability to working conditions.

[0046] In practical applications, the alignment between two adjacent bridge tubes in each supporting bridge tube 112 and each transition bridge tube 113 can be completed by tightening bolts 114, or by a snap-fit ​​assembly structure formed by the cooperation of a buckle and a slot, or by other assembly methods. In principle, any method can be used as long as it can ensure reliable alignment and stable assembly between two adjacent bridge tubes to ensure the assembly strength of the bridge tube assembly 11 and the overall structural stability of the high-voltage busbar bridge assembly.

[0047] Specifically, an interface bridge barrel 115, capable of connecting to high-voltage equipment, is protruding from the outer wall of the support bridge barrel 112, and the connection terminals 12 are located within the interface bridge barrel 115. This interface bridge barrel 115 provides sufficient structural protection for the internal electrical components when the high-voltage busbar bridge assembly is used with high-voltage equipment, and ensures reliable connection and assembly between the high-voltage busbar bridge assembly and the high-voltage equipment, thereby meeting the assembly and application requirements of the high-voltage busbar bridge assembly.

[0048] It should be pointed out that, considering the operational requirements under most working conditions in actual applications, the bridge tube assembly 11 is usually arranged horizontally. On this basis, the supporting bridge tube 112 is usually located at the bottom of the supporting bridge tube 112, or on the side of the supporting bridge tube 112. In short, based on the relative position relationship and assembly space layout between the high-voltage equipment and the high-voltage busbar bridge assembly, the staff can flexibly adjust the specific arrangement and adaptation effect of the bridge tube assembly 11 and its interface bridge tube 115 according to specific working conditions.

[0049] More specifically, the outer wall of the end portion of the supporting bridge tube 112 along the length direction of the bridge tube assembly 11 is provided with an end operation hole connected to the cable cavity 111, and an end door panel 116 is provided on the end operation hole for opening and closing. Under normal working conditions, the end door panel 116 is in a closed state to implement a reliable structural seal for the end operation hole; when it is necessary to inspect or repair and maintain the busbar cable 10 or other components in the cable cavity 111, the end door panel 116 can be opened to allow the staff to perform the corresponding operation on the components or structures inside the cable cavity 111 through the end operation hole. After the operation is completed, the end door panel 116 only needs to be closed again.

[0050] Generally, a door lock 117 is also arranged on the end door panel 116 to reliably lock the end door panel 116 when the end door panel 116 is in a closed state, thereby preventing the end door panel 116 from being opened when not in operation, thereby eliminating the potential safety hazards that may be caused by this, and further improving the installation and operation safety of the high-voltage busbar bridge assembly.

[0051] Correspondingly, the side wall of the transition bridge tube 113 has a side operation hole connected to the cable chamber 111, and a side cover 118 is provided on the side operation hole. Under normal working conditions, the side cover 118 is in a closed state to implement a reliable structural seal for the side operation hole; when it is necessary to inspect or repair and maintain the busbar cable 10 or other components in the cable chamber 111, the side cover 118 on the transition bridge tube 113 corresponding to the required operation area can be opened to allow the staff to perform the corresponding operation on the components or structures inside the cable chamber 111 through the side operation hole. After the operation is completed, the side cover 118 only needs to be closed again.

[0052] It is not difficult to understand that the above-mentioned side cover plate 118 and side operation hole are only used to express the corresponding understanding of the approximate positions of the two on the transition bridge tube 113. In actual applications, depending on the different arrangements of the bridge tube assembly 11, the side operation hole may be at the top or bottom of the transition bridge tube 113, and the side cover plate 118 is also correspondingly at the top or bottom of the transition bridge tube 113, but the adaptation structure and operation method of the two will not change.

[0053] On the other hand, ventilation holes 119 are provided on each side wall of the support bridge tube 112 and the transition bridge tube 113. Each ventilation hole 119 can effectively ensure that the wire cavity 111 is connected to the external environment, so that the wire cavity 111 is always ventilated, and the occurrence of excessive moisture in the wire cavity 111 is avoided, thereby ensuring the stable operation of the bus cable 10.

[0054] On this basis, dust screens 110 are installed on each side wall of the support bridge tube 112 and the transition bridge tube 113, aligned with the ventilation holes 119. The dust screens 110 effectively prevent birds, rodents, or other small animals in the external environment from entering the cable cavity 111 through the ventilation holes 119, thereby preventing them from biting and damaging the busbar cables 10. This further ensures the structural protection of the busbar cables 10 and optimizes the adaptability of the high-voltage busbar bridge assembly to outdoor working conditions.

[0055] In addition, a plurality of support beams 13 are fixedly installed in the line cavity 111 . The support beams 13 extend along the width direction of the bridge tube assembly 11 , and the support beams 13 are sequentially arranged along the length direction of the bridge tube assembly 11 and are clearance-matched.

[0056] Furthermore, the support beam 13 is fixedly provided with a plurality of insulating terminals 131 that can be connected to and assembled and disassembled with the busbar cables 10. An insulating box 132 is installed at the connection between the busbar cables 10 and the insulating terminals 131. The insulating box 132 is generally a box-shaped covering made of an insulating material such as engineering plastics. It is used to cover and encase the exposed parts of electrical accessories, preventing hazards such as leakage, ensuring insulation effectiveness, and ensuring safe operation of the equipment.

[0057] Each insulating terminal 131 cooperates with the supporting beam 13 to provide sufficient and reliable structural support for the bus cable 10 .

[0058] Correspondingly, grounding columns will be arranged at multiple positions on the bridge tube assembly 11 to cooperate with components such as the bus cable 10 to ensure that the high-voltage bus bridge assembly has good grounding performance and improve the operating safety of the high-voltage bus bridge assembly.

[0059] Typically, the core material of busbar cable 10 is made of high-quality tinned copper, which can fully meet the requirements of line connection and equipment operation under various working conditions. After the busbar cable 10 is formed, it is heat-shrunk using heat-shrink tubing suitable for high-voltage power transmission and transformation lines. The busbar cable 10 is also embossed at the joints and connection points to ensure the line connection of the busbar cable 10 and the reliable connection of the power transmission and transformation system.

[0060] On this basis, the connections between the busbar cable 10 and the insulating terminals 131 and other supporting connectors are generally fastened using fasteners, preferably bolts, although other types of connectors can also be used to complete the assembly and connection depending on the working conditions. Accordingly, where there are exposed structures at the various connections of the busbar cable 10, the corresponding exposed areas are wrapped and protected with insulating boxes 132 to prevent leakage and other safety hazards during the operation of the high-voltage busbar bridge assembly, thereby improving its operational safety.

[0061] Furthermore, a lifting beam 14 extending along the width direction is fixedly provided on the outer wall of the bridge tube assembly 11, and there are at least two lifting beams 14, and each lifting beam 14 is arranged in sequence along the length direction of the bridge tube assembly 11 and is gap-fitted. The lifting beam 14 can serve as the structural basis for connecting the main structure of the bridge tube assembly 11 with supporting structures such as high-voltage brackets or walls, and provide a reliable lifting connection point for the overall assembly structure of the high-voltage busbar bridge assembly. On this basis, with the coordinated arrangement of at least two lifting beams 14, the overall lifting arrangement stability of the high-voltage busbar bridge assembly can be fully guaranteed, the overall installation safety of the high-voltage busbar bridge assembly can be improved, the installation and operation of the high-voltage busbar bridge assembly in the outdoor environment can be more stable and reliable, and the adaptability to working conditions can be correspondingly improved.

[0062] In addition, a safety warning sign 15 will be arranged on the outer wall of the bridge tube assembly 11 to further remind surrounding personnel to pay attention to the location of the high-voltage busbar bridge assembly, and prevent non-staff from coming into contact with busbar cables 10 and other related electrical connection equipment, thereby further preventing the occurrence of dangerous situations such as electric shock to personnel and improving the safety of use of the high-voltage busbar bridge assembly.

[0063] In a specific embodiment, the present invention provides a high-voltage power transmission and transformation system comprising interconnected high-voltage equipment and a high-voltage busbar bridge assembly, wherein the high-voltage busbar bridge assembly is the high-voltage busbar bridge assembly described above. The high-voltage busbar bridge assembly of the high-voltage power transmission and transformation system can provide comprehensive structural protection for busbar cables and reduce safety hazards during the operation of the high-voltage busbar bridge.

[0064] In summary, the high-voltage busbar bridge assembly provided in the present invention, during its assembly and operation, encapsulates the busbar cable as a whole in the cable cavity, thereby utilizing the enclosure structure of the bridge tube assembly itself to form a circumferential and axial all-round covering for the busbar cable, thereby forming an overall structural protection for the busbar cable. In this way, after the equipment is assembled, even if the high-voltage busbar bridge assembly is in a harsh outdoor working environment, due to the structural protection of the busbar cable by the bridge tube assembly, it can effectively prevent rain, wind, sand or dust in the external environment from eroding and damaging the busbar cable, ensuring the integrity of the main structure of the busbar cable and the stability of the cable performance, thereby ensuring the reliable conduction of the corresponding high-voltage power transmission and transformation lines and the stable operation of related high-voltage equipment. In addition, arranging the busbar cable as a whole in the reliable enclosure structure of the bridge tube assembly can effectively avoid the structural exposure of the busbar cable, thereby eliminating the risk of electric shock injury to nearby personnel due to the exposure of the busbar cable, thereby greatly improving the safety of the busbar cable installation and the overall operation of the high-voltage power transmission and transformation lines.

[0065] The utility model also provides a high-voltage power transmission and transformation system, wherein the high-voltage busbar bridge assembly can provide comprehensive structural protection for busbar cables and reduce potential safety hazards during the operation of the high-voltage busbar bridge.

[0066] The above is a detailed introduction to the high-voltage busbar bridge assembly provided by the present invention and the high-voltage power transmission and transformation system using the high-voltage busbar bridge assembly. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified. These improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A high voltage busbar bridge assembly, characterized in that: It comprises a bridge barrel assembly having a wire accommodating cavity therein and a busbar cable encapsulated in the wire accommodating cavity, wherein the bridge barrel assembly is provided with a connection terminal electrically connected to the busbar cable; The bridge tube assembly includes supporting bridge tubes arranged in two sections along its length direction, and also includes a transition bridge tube arranged in sequence along the length direction of the bridge tube assembly and connected between the two supporting bridge tubes. The interiors of the supporting bridge tubes and the transition bridge tubes both have wiring cavities, and each of the wiring cavities is connected in sequence along the length direction of the bridge tube assembly to form the wire accommodating cavity.

2. The high-voltage busbar bridge assembly according to claim 1, characterized in that: An interface bridge tube that can be connected to high-voltage equipment is protruding from the outer wall of the supporting bridge tube, and the wiring terminal is located in the interface bridge tube.

3. The high-voltage busbar bridge assembly according to claim 1, characterized in that: The outer wall of the end portion of the supporting bridge tube along the length direction of the bridge tube assembly is provided with an end operation hole connected to the wire accommodating cavity, and the end operation hole is opened and closed with an end door panel.

4. The high-voltage busbar bridge assembly according to claim 1, characterized in that: A side operating hole communicating with the line accommodating cavity is provided on the side wall of the transition bridge tube, and a side cover plate is opened and closed on the side operating hole.

5. The high-voltage busbar bridge assembly according to claim 1, characterized in that: Ventilation holes are provided on each side wall of the supporting bridge tube and the transition bridge tube.

6. The high-voltage busbar bridge assembly according to claim 5, characterized in that: Each side wall of the supporting bridge tube and the transition bridge tube is provided with a dustproof net that is aligned with the ventilation hole.

7. The high-voltage busbar bridge assembly according to claim 1, characterized in that: A plurality of supporting beams are fixedly arranged in the line-containing cavity, and the supporting beams extend along the width direction of the bridge barrel assembly, and the supporting beams are sequentially arranged along the length direction of the bridge barrel assembly and are clearance-matched; A plurality of insulating terminals that can be connected to and assembled and disassembled with the busbar cables are fixedly provided on the supporting crossbeam, and an insulating box is sleeved at the connection between the busbar cables and the insulating terminals.

8. The high-voltage busbar bridge assembly according to claim 1, characterized in that: A lifting beam extending along the width direction is fixedly provided on the outer wall of the bridge tube assembly. There are at least two lifting beams, and each lifting beam is arranged in sequence along the length direction of the bridge tube assembly and is clearance-fitted.

9. A high-voltage power transmission and transformation system, comprising interconnected high-voltage equipment and a high-voltage busbar bridge assembly, characterized in that: The high-voltage busbar bridge assembly is the high-voltage busbar bridge assembly according to any one of claims 1 to 8.

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