Direct-current distribution screen cabinet

By designing a DC split screen cabinet, including a closing bus, a control bus, a protection bus, a DC feeder terminal, an air switch and a power controller, the power outage problem during the power grid line transformation is solved, temporary power supply is achieved, and user complaints are reduced.

CN223297210UActive Publication Date: 2025-09-02HUANGSHI ELECTRIC POWER RECONNAISSANCE & DESIGN CO LTD
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Patent Information

Application Number
CN202422443176.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-10
Publication Date
2025-09-02
Estimated Expiration
2034-10-10

AI Technical Summary

Technical Problem

The existing AC input split screen needs to be powered off during the transformation and upgrading of the power grid line, resulting in large-scale long-term power outages and causing user complaints.

Method used

A DC split screen cabinet is designed, including a closing bus, a control bus, a protection bus, a DC feeder terminal, an air switch, a power controller and a contact switch, which can temporarily supply power during online transformation and avoid large-scale power outages.

Benefits of technology

Temporary power supply during power grid line renovation is achieved, large-scale long-term power outages are avoided, and user complaints are reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a direct-current distribution screen cabinet, which comprises a cabinet body, a closing bus, a control bus and a protection bus are arranged in the cabinet body, a plurality of groups of direct-current feeder terminals are arranged in the cabinet body, the input end of one group of direct-current feeder terminals A is connected with the closing bus, the input end of one group of direct-current feeder terminals B is connected with the control bus, and the input end of the other group of direct-current feeder terminals B is connected with the protection bus. The input ends of the group of direct current feeder terminals C are connected with the protection bus, a plurality of air switches are arranged on the front side in the cabinet body, the direct current feeder terminal A, the direct current feeder terminal B and the direct current feeder terminal C are respectively provided with a plurality of output ends, and each output end is connected with the corresponding air switch; the cabinet body is internally provided with a power supply controller, the input end of the voltage controller is provided with a power supply module, the input end of the power supply module is connected with the control bus, and the output end of the voltage controller is connected with each DC feeder terminal; when a line is upgraded and reconstructed, the ring main unit can be temporarily supplied with power, and user complaints caused by large-area long-time power failure are avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of power distribution equipment, in particular to a DC power distribution panel cabinet. Background Art

[0002] The power supply grid system includes ring main units (RMUs) and distribution panels. The distribution panels distribute electricity to each RMU, and then send electricity to each power user through the RMUs. Currently, most distribution panels use AC input. When the grid lines need to be renovated and upgraded, power outages are required. However, the long renovation and upgrade time will lead to large-scale and long-term power outages, causing user complaints. Therefore, it is necessary to design a DC distribution panel that can temporarily provide power during line renovation and upgrades. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art and to provide a DC distribution panel cabinet.

[0004] The specific scheme of the utility model is: a DC distribution panel cabinet, including a cabinet body, a closing bus, a control bus and a protection bus are arranged in the cabinet body, and several groups of DC feeder terminals are installed in the cabinet body, wherein the input end of one group of DC feeder terminals A is connected to the closing bus, the input end of one group of DC feeder terminals B is connected to the control bus, and the input end of one group of DC feeder terminals C is connected to the protection bus; several air switches are arranged on the front of the cabinet body, and the DC feeder terminals A, B and C are respectively provided with several output ends, and each output end is connected to the corresponding air switch; a power supply controller is installed in the cabinet body, and the input end of the voltage controller is provided with a power supply module, the input end of the power supply module is connected to the control bus, and the output end of the voltage controller is connected to each DC feeder terminal.

[0005] Furthermore, two DC distribution panels are assembled together, a connecting switch is installed between the control busbars of the two DC distribution panels, a connecting switch is installed between the closing busbars of the two DC distribution panels, and a connecting switch is installed between the protection busbars of the two DC distribution panels.

[0006] Furthermore, the DC feeder terminals and the voltage controller are installed on the back of the cabinet.

[0007] Furthermore, a transparent glass door is provided on the front of the cabinet body, a door handle is provided on one side of the outside of the door, and the other side of the door is hinged to the cabinet body.

[0008] The utility model has the following beneficial effects: when the line is upgraded and renovated, the ring network cabinet can be temporarily powered to avoid user complaints caused by large-scale and long-term power outages. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a front view of the structure of the utility model;

[0010] Figure 2 It is a back view of the utility model;

[0011] Figure 3 This is a schematic diagram of the circuit connection of the utility model;

[0012] Figure 4 This is a connection diagram of the voltage controller of the utility model;

[0013] In the figure: 1. Cabinet; 2. Air switch; 3. DC feeder terminal; 4. Control bus; 5. Tie switch. DETAILED DESCRIPTION

[0014] See also Figure 1-4 , this embodiment is a DC distribution panel cabinet, including a cabinet body 1, which is provided with a closing bus, a control bus 4 and a protection bus. The cabinet body 1 is provided with several groups of DC feeder terminals 3, wherein the input end of one group of DC feeder terminals A3 is connected to the closing bus, the input end of one group of DC feeder terminals B3 is connected to the control bus 4, and the input end of one group of DC feeder terminals C3 is connected to the protection bus. Several air switches 2 are provided on the front of the cabinet body 1, and the DC feeder terminal A3, the DC feeder terminal B3 and the DC feeder terminal C3 are each provided with several output ends, and each output end is connected to the corresponding air switch 2; the cabinet body 1 is provided with a power supply controller, the input end of the voltage controller is provided with a power supply module, the input end of the power supply module is connected to the control bus 4, and the output end of the voltage controller is connected to each DC feeder terminal 3.

[0015] Furthermore, two DC distribution panels are assembled together, and a connecting switch 5 is installed between the control busbars 4 of the two DC distribution panels, a connecting switch 5 is installed between the closing busbars of the two DC distribution panels, and a connecting switch 5 is installed between the protection busbars of the two DC distribution panels.

[0016] Furthermore, the DC feeder terminal 3 and the voltage controller are installed on the back of the cabinet 1 .

[0017] Furthermore, a transparent glass door is provided on the front of the cabinet body 1 , a door handle is provided on one side of the outside of the door, and the other side of the door is hinged to the cabinet body 1 .

[0018] When a certain section of the line needs to be renovated and upgraded, a temporary DC system is built to transfer the load to the temporary DC power supply system. First, the AC input of the original DC panel is disconnected and the original DC panel is removed. Then, the DC distribution panel cabinet of the utility model is installed to transfer the DC load to the new system.

Claims

1. A DC distribution panel cabinet, characterized by: The invention comprises a cabinet body, which is provided with a closing bus, a control bus and a protection bus. The cabinet body is provided with several groups of DC feeder terminals, wherein the input end of a group of DC feeder terminals A is connected to the closing bus, the input end of a group of DC feeder terminals B is connected to the control bus, and the input end of a group of DC feeder terminals C is connected to the protection bus. Several air switches are provided on the front of the cabinet body, and the DC feeder terminals A, B and C are each provided with several output ends, and each output end is connected to the corresponding air switch; a power supply controller is installed in the cabinet body, and the input end of the voltage controller is provided with a power supply module, the input end of the power supply module is connected to the control bus, and the output end of the voltage controller is connected to each DC feeder terminal.

2. A DC distribution panel cabinet according to claim 1, characterized in that: Two DC distribution panels are assembled together, and connecting switches are installed between the control bus, closing bus and protection bus of the two DC distribution panels.

3. The DC distribution panel cabinet according to claim 1, characterized in that: The DC feeder terminals and voltage controller are installed on the back of the cabinet.

4. A DC distribution panel cabinet according to claim 1, characterized in that: The front of the cabinet body is provided with a transparent glass cabinet door, one side of the outer side of the cabinet door is provided with a door handle, and the other side of the cabinet door is hinged to the cabinet body.