Box transformer substation high-voltage ring main unit capable of improving secondary assembly speed

Abstract

The utility model discloses a box transformer substation high-voltage ring main unit capable of improving secondary assembly speed, which comprises a busbar chamber, a secondary component chamber and a cable chamber, the busbar chamber and the secondary component chamber are arranged above the cable chamber, the secondary component chamber is arranged at the front part of the busbar chamber, a component independent mounting plate is arranged in the secondary component chamber, and the component independent mounting plate is arranged in the cable chamber. Components can be installed on the component independent installation plate, the installation plate is assembled on a cabinet after the components are installed and wires are connected, rapidness and high efficiency are achieved, and a plurality of pressure relief channels are formed in the back of the cable chamber. According to the high-voltage ring main unit, the number of mounting plates for independent components is increased at present, secondary components and wiring can be assembled at any place, and when a workshop receives a high-voltage ring main unit project in a box transformer substation, the mounting plates can be firstly manufactured, the secondary components and wiring can be synchronously carried out with shell manufacturing, so that primary assembly is not interfered, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a ring main unit, specifically a high-voltage ring main unit for prefabricated substations that improves the speed of secondary assembly. Background Technology

[0002] High-voltage ring main units (HNMUs) in intelligent prefabricated substations are a crucial component of power distribution systems, primarily used for power distribution and protection in medium-voltage power grids. HNMUs play a critical switching and protection role in intelligent prefabricated substations, enabling connection, disconnection, and fault isolation between lines to ensure the stable operation of the entire power system. Modern HNMUs are equipped with various sensors and controllers, allowing for real-time monitoring of equipment status and data transmission to the monitoring center via communication networks. To meet the miniaturization requirements of intelligent prefabricated substations, HNMUs have adopted a more compact design, reducing footprint while maintaining performance. They are widely used in urban power grid upgrade projects and industrial park power supply facility construction, particularly important in situations requiring rapid power restoration or improved power reliability. With the development of IoT technology, future HNMUs will place greater emphasis on digital transformation, including but not limited to enhanced remote operation and maintenance capabilities and the introduction of predictive maintenance functions, to further improve their intelligence level and service quality.

[0003] To adapt to the market, delivery times for smart prefabricated substations are becoming increasingly tight. The secondary wiring speed of high-voltage ring main units in smart prefabricated substations is too slow. When primary and secondary assembly are done on the same project, they will affect each other's time, resulting in a significant reduction in work efficiency.

[0004] It turns out that the secondary components of the intelligent transformer high-voltage ring main unit need to be assembled on the entire shell. Employees need to stand at the front door of the cabinet to connect the wires. At the same time, the copper busbar installers and copper busbar assemblers are also busy on the same cabinet, affecting each other's time and greatly reducing work efficiency. Utility Model Content

[0005] To address the issue of wiring speed in high-voltage ring main units, this invention provides a prefabricated high-voltage ring main unit that improves secondary assembly speed. This increases secondary wiring speed and makes primary assembly more efficient.

[0006] This utility model provides the following technical solution:

[0007] A high-voltage ring main unit for transformer substations with improved secondary assembly speed includes a busbar compartment, a secondary component compartment, and a cable compartment. The busbar compartment and the secondary component compartment are located above the cable compartment. The secondary component compartment is located at the front of the busbar compartment. A separate component mounting plate is installed in the secondary component compartment, and components can be installed on the separate component mounting plate. Multiple pressure relief channels are opened at the rear of the cable compartment.

[0008] Furthermore, the component mounting plate is secured to the secondary component chamber via mounting holes on both sides.

[0009] Furthermore, wiring holes are provided on both sides of the frame of the secondary component chamber.

[0010] Furthermore, a cable tie bracket is installed at the rear of the secondary component chamber.

[0011] Furthermore, a support plate is provided around the bottom of the busbar chamber.

[0012] Compared with the existing technology, the beneficial effects of this utility model are as follows: The upper part of the high-voltage ring main unit of the prefabricated substation is the busbar compartment and the secondary component compartment, and the lower part is the cable compartment. Now, with the addition of a separate mounting plate for components, the assembly of secondary components and wiring are not affected by the site. Moreover, when the workshop receives the high-voltage ring main unit project for the prefabricated substation, it can arrange to make the mounting plate first, install the components on the mounting plate, and carry out the secondary component and wiring simultaneously with the shell fabrication, without interfering with the primary assembly. This improves work efficiency, reduces the overall manufacturing time of the high-voltage ring main unit of the prefabricated substation, increases the speed of secondary wiring, and makes the primary assembly more efficient. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model;

[0015] Figure 3 This is a perspective view of one side of the present invention.

[0016] In the diagram: 1. Busbar compartment; 11. Support plate; 2. Secondary component compartment; 3. Cable compartment; 4. Pressure relief channel; 5. Cable tie bracket; 6. Cable routing port; 7. Individual component mounting plate; 71. Mounting hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3This utility model discloses a high-voltage ring main unit for a transformer substation that improves secondary assembly speed. It includes a busbar compartment 1, a secondary component compartment 2, and a cable compartment 3. The busbar compartment 1 and the secondary component compartment 2 are located above the cable compartment 3, with the secondary component compartment 2 positioned at the front of the busbar compartment 1. Individual component mounting plates 7 are installed inside the secondary component compartment 2, allowing for the mounting of components. After the components are installed and the wiring is completed, the mounting plates are assembled onto the cabinet, resulting in a quick and efficient assembly. Multiple pressure relief channels 4 are located at the rear of the cable compartment 3. The main function of these pressure relief channels is to effectively release internal high-temperature, high-pressure gases in the event of a short-circuit fault, protecting equipment and personnel safety.

[0019] The component mounting plate 7 is fastened to the secondary component chamber 2 through the mounting holes 71 on both sides.

[0020] The two sides of the frame of the secondary component room 2 have wiring holes 6, which facilitates wiring when the cabinets are combined.

[0021] A cable tie bracket 5 is installed at the rear of the secondary component room 2 to facilitate rear cable routing.

[0022] The bottom of the busbar compartment 1 is equipped with support plates 11 around its perimeter. This facilitates the installation, connection, and fixing of the busbar.

[0023] The addition of separate mounting plates for secondary components in the secondary component room 2 allows for the assembly and wiring of secondary components to be done anywhere. Furthermore, when the workshop receives a high-voltage ring main unit project for the transformer substation, it can arrange for the fabrication of the mounting plates first. The fabrication of secondary components and wiring can be carried out simultaneously with the construction of the casing, without interfering with the primary assembly. This improves work efficiency, reduces the overall production time of the transformer substation high-voltage ring main unit, speeds up secondary wiring, and makes primary assembly more efficient.

[0024] 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated high-voltage ring main unit for improving secondary assembly speed, characterized in that: It includes a busbar compartment (1), a secondary component compartment (2) and a cable compartment (3). The busbar compartment (1) and the secondary component compartment (2) are located above the cable compartment (3). The secondary component compartment (2) is located in front of the busbar compartment (1). A separate component mounting plate (7) is installed in the secondary component compartment (2). Components can be installed on the separate component mounting plate (7). Multiple pressure relief channels (4) are opened at the rear of the cable compartment (3).

2. The high-voltage ring main unit for prefabricated substations with improved secondary assembly speed according to claim 1, characterized in that: The component mounting plate (7) is fastened to the secondary component chamber (2) through mounting holes (71) on both sides.

3. A prefabricated high-voltage ring main unit for improving secondary assembly speed according to claim 1, characterized in that: The two sides of the frame of the secondary component chamber (2) have wiring holes (6).

4. A prefabricated high-voltage ring main unit for improving secondary assembly speed according to claim 1, characterized in that: The cable tie bracket (5) is installed at the rear of the secondary component room (2).

5. A prefabricated high-voltage ring main unit for improving secondary assembly speed according to claim 1, characterized in that: The bottom of the busbar chamber (1) is provided with a support plate (11).

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