Box-type substation high-voltage cabinet and box-type substation

Abstract

The invention relates to the field of power distribution substations, in particular to a box-type substation high-voltage cabinet and a box-type substation. The high-voltage cabinet of the box-type transformer substation and the box-type transformer substation are used for solving the problems that an existing circuit breaker is lagged in installation process and complex in installation. The box-type transformer substation comprises a main installation frame and a front sealing plate connected to the front side of the main installation frame, a circuit breaker is installed in the main installation frame, and the main installation frame and the front sealing plate are used for being installed in a transformer substation box body and detachably connected with the transformer substation box body. Thus, the structure of the high-voltage cabinet of the box-type substation is simplified, the installation mode of the circuit breaker is optimized, the circuit breaker can be installed on the main installation frame firstly, then the main installation frame is installed in the box body, installation of the circuit breaker is facilitated, an installation space does not need to be reserved in the box body when the circuit breaker is installed, and installation is convenient. And the optimization of the structure in the box is also realized.

Description

Technical Field

[0001] The present invention relates to the field of power distribution substations, and in particular to a box-type substation high-voltage cabinet and a box-type substation. Background Art

[0002] Box-type substation, also known as prefabricated substation or prefabricated substation, is a factory-prefabricated indoor and outdoor compact power distribution equipment arranged in one according to a certain wiring scheme. Hua-style substation is a type of box-type substation, which has the characteristics of small size, compact structure, safe and reliable operation, convenient maintenance and mobility.

[0003] The Chinese utility model patent with the authorization announcement number CN216929368U discloses a new energy photovoltaic Huabian substation, which includes a box body, and a circuit breaker cabinet that can accommodate circuit breakers is set at the corresponding position in the box body, and the circuit breaker is installed in the box body according to the position of the cabinet. Although this structure is relatively reliable, the circuit breaker can only be installed after the Huabian box body is fully formed, and the installation process is delayed. If a five-in-one circuit breaker is used, the five-in-one circuit breaker is large in size and the body is relatively bulky, which is difficult to install. In order to meet the installation requirements, the volume of the box body is often increased. Summary of the invention

[0004] The purpose of the present invention is to provide a box-type substation high-voltage cabinet to solve the problem of delayed installation process and complicated installation of circuit breakers in the prior art. The purpose of the present invention is also to provide a box-type substation to solve the problem that the circuit breaker in the prior art can only be installed after the box is fully formed, the installation is complicated and the process is delayed, and the volume of the box is often increased to meet the installation requirements.

[0005] In order to solve the above technical problems, a box-type substation high-voltage cabinet of the present invention adopts the following technical solutions: The box-type substation high-voltage cabinet includes a main installation frame and a front cover plate connected to the front side of the main installation frame. A circuit breaker is installed in the main installation frame. The main installation frame and the front cover plate are used to be installed in the substation box and are detachably connected to the substation box.

[0006] Furthermore, the main installation frame includes a rectangular frame and a circuit breaker mounting bracket, the circuit breaker mounting bracket includes front and rear columns spaced apart from each other and a crossbeam connected between the front and rear columns, and the bottom and top of the circuit breaker mounting bracket are respectively connected to the bottom and top of the substation box.

[0007] Furthermore, the circuit breaker is installed on a circuit breaker mounting bracket and has a left part and a right part located on the left and right sides of the crossbeam. The lower ends of the front and rear columns are connected to a bottom beam extending toward the side with a heavier load among the left and right parts. The circuit breaker mounting bracket is connected to the bottom of the substation box through the bottom beam.

[0008] Furthermore, the crossbeam includes a top crossbeam located at the top of the front and rear columns, and the circuit breaker mounting bracket is connected to the top of the transformer substation box through the top crossbeam.

[0009] Furthermore, the top, bottom, rear, left and right sides of the main installation frame are all open, and the front covering plate of the main installation frame includes side covering plates on the left and right sides of the main installation frame and a top covering plate on the upper side of the main installation frame. The front covering plate is used to be connected to the substation box body, and a cabinet door is installed in the space enclosed by the front covering plate.

[0010] The present invention proposes a new technical solution, which sets a main installation frame that is detachably connected to the substation box body, the main installation frame constitutes the cabinet structure of the high-voltage cabinet, and the circuit breaker is installed on the main installation frame. In this way, while simplifying the structure of the high-voltage cabinet of the box-type substation, the installation method of the circuit breaker is also optimized. The circuit breaker can be installed on the main installation frame first, and then the main installation frame can be installed in the box body, making it easy to assemble. When installing the circuit breaker, there is no need to reserve installation space in the box body, which realizes the optimization of the structure inside the box.

[0011] In order to solve the above technical problems, a box-type substation of the present invention adopts the following technical solutions: The box-type substation includes a box body, in which a high-voltage cabinet is arranged. The high-voltage cabinet includes a main installation frame and a front cover plate connected to the front side of the main installation frame. A circuit breaker is installed in the main installation frame. The main installation frame and the front cover plate are used to be installed in the substation box body and are detachably connected to the substation box body.

[0012] Furthermore, the main installation frame includes a rectangular frame and a circuit breaker mounting bracket, the circuit breaker mounting bracket includes front and rear columns spaced apart from each other and a crossbeam connected between the front and rear columns, and the bottom and top of the circuit breaker mounting bracket are respectively connected to the bottom and top of the substation box.

[0013] Furthermore, the circuit breaker is installed on a circuit breaker mounting bracket and has a left part and a right part located on the left and right sides of the crossbeam. The lower ends of the front and rear columns are connected to a bottom beam extending toward the side with a heavier load among the left and right parts. The circuit breaker mounting bracket is connected to the bottom of the substation box through the bottom beam.

[0014] Furthermore, the crossbeam includes a top crossbeam located at the top of the front and rear columns, and the circuit breaker mounting bracket is connected to the top of the transformer substation box through the top crossbeam.

[0015] Furthermore, the top, bottom, rear, left and right sides of the main installation frame are all open, and the front covering plate of the main installation frame includes side covering plates on the left and right sides of the main installation frame and a top covering plate on the upper side of the main installation frame. The front covering plate is used to be connected to the substation box body, and a cabinet door is installed in the space enclosed by the front covering plate.

[0016] The present invention proposes a new technical solution, which sets a main installation frame that is detachably connected to the substation box body, the main installation frame constitutes the cabinet structure of the high-voltage cabinet, and the circuit breaker is installed on the main installation frame. In this way, while simplifying the structure of the high-voltage cabinet of the box-type substation, the installation method of the circuit breaker is also optimized. The circuit breaker can be installed on the main installation frame first, and then the main installation frame can be installed in the box body, making it easy to assemble. When installing the circuit breaker, there is no need to reserve installation space in the box body, and the optimization of the structure inside the box is also achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of a box-type substation high-voltage cabinet of the present invention; Figure 2 for Figure 1 Right view of; Figure 3 for Figure 1 A top view of Figure 4 for Figure 1 Rear view of.

[0018] In the figure: 1. front column; 2. upper partition; 3. partition reinforcement rib; 4. insulator mounting beam; 5. circuit breaker mounting reinforcement box; 6. circuit breaker mounting frame; 7. side cover plate; 8. upper cover plate; 9. left cabinet door; 10. right cabinet door; 11. C profile; 12. reinforcement brace; 13. rear column; 14. cross beam; 15. bottom beam; 16. five-in-one circuit breaker; 17. rectangular frame. DETAILED DESCRIPTION

[0019] The present invention proposes a new technical solution to the problems existing in the above technical solutions. The core concept of the present invention is: a main installation frame detachably connected to the substation box is set, the main installation frame constitutes the cabinet structure of the high-voltage cabinet, and the circuit breaker is installed on the main installation frame. In this way, while simplifying the structure of the high-voltage cabinet of the box-type substation, the installation method of the circuit breaker is also optimized. The circuit breaker can be installed on the main installation frame first, and then the main installation frame can be installed in the box, making it easy to assemble. When installing the circuit breaker, there is no need to reserve installation space in the box, which realizes the optimization of the structure inside the box.

[0020] In view of the above invention concept, a box-type substation high-voltage cabinet of the present invention includes a main installation frame and a front cover plate connected to the front side of the main installation frame. A circuit breaker is installed in the main installation frame. The circuit breaker in this embodiment is as follows Figure 3 The five-in-one circuit breaker 16 shown is a circuit breaker that integrates five functions such as a circuit breaker, a load switch, a fuse, a contactor and a bypass resistor. In this way, after installing the five-in-one circuit breaker 16, the main installation frame can be directly installed in the substation box. Of course, in another embodiment, the circuit breaker can also be a three-in-one circuit breaker or other forms of circuit breaker. In this case, it is necessary to set a mounting structure on the main installation frame that can be installed with a load switch, a fuse, a contactor and a bypass resistor. The main installation frame and the front cover plate are used to be installed in the substation box and are detachably connected to the substation box. In this way, the flexibility of connecting the main installation frame with the box-type substation box is improved. The present invention simplifies the structure of the high-voltage cabinet of the box-type substation. When installing the five-in-one circuit breaker 16, the five-in-one circuit breaker 16 can be first installed on the main installation frame, and then the main installation frame is installed in the box body, which optimizes the installation method of the circuit breaker and makes it easy to assemble. When installing the circuit breaker, there is no need to reserve installation space in the box body, and the optimization of the structure inside the box is also achieved.

[0021] In this embodiment, the main installation frame includes a rectangular frame 17 and a circuit breaker mounting bracket, and the rectangular frame 17 is composed of C-shaped materials and forms the main frame of the high-voltage cabinet of the box-type substation. The circuit breaker mounting bracket includes a front column 1 and a rear column 13 arranged at intervals in front and back. The front column 1 and the rear column 13 are connected to the C-shaped materials on the side of the main frame by bolts. The circuit breaker mounting bracket also includes an intermediate crossbeam connected between the front and rear columns, and the crossbeam includes a circuit breaker mounting crossbeam arranged in the middle of the front and rear columns. A circuit breaker mounting frame 6 for mounting a five-in-one circuit breaker 16 is arranged on the circuit breaker mounting crossbeam, and a circuit breaker reinforcement box 5 is arranged on the circuit breaker mounting frame 6 to ensure the stability of the installation of the five-in-one circuit breaker 16. The circuit breaker mounting bracket of this embodiment is a planar mounting bracket. In addition, in another embodiment, the circuit breaker mounting bracket can also be a three-dimensional frame-type mounting bracket. The circuit breaker of this embodiment is installed in the rectangular frame 17 through the circuit breaker mounting bracket. In another embodiment, the circuit breaker can also be directly mounted on the rectangular frame. In this case, a circuit breaker mounting crossbeam and a circuit breaker mounting frame 6 for mounting the five-in-one circuit breaker 16 need to be provided on the rectangular frame. The crossbeam also includes Figure 2The insulator mounting beam 4 and the upper partition 2 for mounting the insulator are shown, and the upper partition 2 is also provided with a partition reinforcement rib 3. The bottom and top of the circuit breaker mounting bracket are respectively connected to the bottom and top of the transformer substation box. In this way, the reliability of the connection between the circuit breaker mounting bracket and the transformer substation box is ensured, and the load of the circuit breaker mounting bracket can also be evenly distributed on the bottom and top of the transformer substation box, thereby improving the stability of the overall structure of the box-type transformer substation during operation. Of course, it is easy to think that the side of the circuit breaker mounting bracket can also be connected to the side of the transformer substation box, and it is only necessary to ensure that the connection between the circuit breaker mounting bracket and the box is reliable.

[0022] In this embodiment, the circuit breaker is installed on the circuit breaker mounting bracket and has a left part and a right part on the left and right sides of the crossbeam. The lower ends of the front and rear columns are connected to a bottom beam 15 extending toward the side with a heavier load of the left and right parts. When the five-in-one circuit breaker 16 is installed on the circuit breaker mounting bracket, the loads on the left and right parts of the circuit breaker mounting bracket are uneven. The bottom beam 15 of this embodiment is located on the side with a heavier load of the circuit breaker mounting bracket to avoid the circuit breaker mounting bracket from tipping over due to uneven loads on the left and right sides. A bottom beam 14 is provided between the column on the side with a heavier load and its corresponding bottom beam 14. Figure 4 The reinforced diagonal brace 12 shown can form a stable triangle with the column and the bottom beam 15 to ensure the stability of the circuit breaker mounting bracket and avoid damage to the bracket structure due to inconsistent loads on both sides. The circuit breaker mounting bracket is connected to the bottom of the substation box through the bottom beam 15. The bottom beam 15 not only improves the stability of the circuit breaker mounting bracket, but also increases the contact area between the circuit breaker mounting bracket and the substation box to transfer the load to the box more evenly. In another embodiment, a connecting flange can also be set at the bottom of the column and connected to the substation box by bolts. The bottom beam 15 of this embodiment is detachably connected to the substation box by bolts, and the bottom beam 15 is evenly distributed with connecting holes along the length direction of the bottom beam 15. The evenly distributed connecting holes enable the load of the circuit breaker mounting bracket to be evenly distributed on the box after the two are installed, thereby improving the stability of the overall structure of the box-type substation when it is in operation.

[0023] In this embodiment, the crossbeam includes: Figure 3 As shown, the top crossbeam 14 at the top of the front and rear columns, the circuit breaker mounting bracket is connected to the top of the substation box through the top crossbeam 14. In this way, the connection area between the circuit breaker mounting bracket and the substation box is increased, avoiding the load concentration in one place and causing damage to the box-type substation. The top crossbeam 15 is also connected to the substation box by bolts, and the connection holes on the top crossbeam 15 for the bolts to pass through are also evenly distributed along the length direction of the top crossbeam 14. In addition, in another embodiment, a connecting flange can be set on the top of the column and connected to the substation box by bolts, and it is only necessary to ensure the reliability of the connection between the two.

[0024] In this embodiment, the top, bottom, rear, left and right sides of the main installation frame are all open, and the front cover of the main installation frame includes: Figure 1 The side sealing plates 7 on the left and right sides of the main installation frame and the top sealing plate 8 on the upper side of the main installation frame are shown, and the front sealing plate is used to connect with the substation box body, and the cabinet door is installed in the space surrounded by the front sealing plate. The cabinet door includes Figure 1 The left cabinet door 9 and the right cabinet door 10 are shown, and the position of the cabinet door after the box-type substation high-voltage cabinet is installed in the substation box body corresponds to the position of the box door on the substation box body.

[0025] Another aspect of the present invention provides a box-type substation, which includes a box body, in which a high-voltage cabinet is arranged. The embodiment of the high-voltage cabinet is the same as the embodiment of the high-voltage cabinet of the box-type substation mentioned above, so it is not repeated here.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A box-type substation high-voltage cabinet, characterized in that: It includes a main installation frame and a front cover plate connected to the front side of the main installation frame. A circuit breaker is installed in the main installation frame. The main installation frame and the front cover plate are used to be installed in a transformer substation box and are detachably connected to the transformer substation box.

2. The box-type substation high-voltage cabinet according to claim 1 is characterized in that: The main installation frame includes a rectangular frame and a circuit breaker installation bracket, the circuit breaker installation bracket includes front and rear columns arranged at a front and rear interval and a crossbeam connected between the front and rear columns, and the bottom and top of the circuit breaker installation bracket are respectively connected to the bottom and top of the transformer substation box.

3. The box-type substation high-voltage cabinet according to claim 2 is characterized in that: The circuit breaker is installed on the circuit breaker mounting bracket and has a left part and a right part located on the left and right sides of the crossbeam. The lower ends of the front and rear columns are connected to a bottom beam extending toward the side with a heavier load among the left and right parts. The circuit breaker mounting bracket is connected to the bottom of the substation box through the bottom beam.

4. The box-type substation high-voltage cabinet according to claim 2 is characterized in that: The cross beams include top cross beams located at the tops of the front and rear columns, and the circuit breaker mounting bracket is connected to the top of the transformer substation box through the top cross beams.

5. The box-type substation high-voltage cabinet according to any one of claims 1 to 4, characterized in that: The top, bottom, rear, left and right sides of the main installation frame are all open. The front cover plate of the main installation frame includes side cover plates on the left and right sides of the main installation frame and a top cover plate on the upper side of the main installation frame. The front cover plate is used to connect with the substation box body, and a cabinet door is installed in the space enclosed by the front cover plate.

6. A box-type substation, characterized in that: It includes a box body, in which a high-voltage cabinet is arranged. The high-voltage cabinet includes a main installation frame and a front cover plate connected to the front side of the main installation frame. A circuit breaker is installed in the main installation frame. The main installation frame and the front cover plate are used to be installed in the substation box body and are detachably connected to the substation box body.

7. The box-type substation according to claim 6 is characterized in that: The main installation frame includes a rectangular frame and a circuit breaker installation bracket, the circuit breaker installation bracket includes front and rear columns arranged at a front and rear interval and a crossbeam connected between the front and rear columns, and the bottom and top of the circuit breaker installation bracket are respectively connected to the bottom and top of the transformer substation box.

8. The box-type substation according to claim 7 is characterized in that: The circuit breaker is installed on the circuit breaker mounting bracket and has a left part and a right part located on the left and right sides of the crossbeam. The lower ends of the front and rear columns are connected to a bottom beam extending toward the side with a heavier load among the left and right parts. The circuit breaker mounting bracket is connected to the bottom of the substation box through the bottom beam.

9. The box-type substation according to claim 7, characterized in that: The cross beams include top cross beams located at the tops of the front and rear columns, and the circuit breaker mounting bracket is connected to the top of the transformer substation box through the top cross beams.

10. The box-type substation according to any one of claims 6 to 9, characterized in that: The top, bottom, rear, left and right sides of the main installation frame are all open. The front cover plate of the main installation frame includes side cover plates on the left and right sides of the main installation frame and a top cover plate on the upper side of the main installation frame. The front cover plate is used to connect with the substation box body, and a cabinet door is installed in the space enclosed by the front cover plate.

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