Improved housing structure for a 10 kV switchgear

Abstract

The utility model provides a kind of improved shell structure of 10kV complete switchgear, it is related to power distribution system technical field, comprising: four columns, close to the column between two sides and close to top and bottom are evenly installed with side crossbeam, two between the side crossbeam are respectively equipped with two first crossbeam plate and two second crossbeam plate, the surface of one side side crossbeam is evenly installed with first filter plate, the first crossbeam plate and two second crossbeam plate are installed with second filter plate between column, it is fixedly installed with main crossbeam between the column and close to both ends, it is symmetrically installed with through-wall partition between the column and close to top, the surface of through-wall partition is evenly installed with through-wall backing plate.In the utility model, transition plate is used to realize the switching installation of shell frame, side crossbeam and electrical components, and the traditional bolt is discarded through mode, all disassembly and assembly operations can be completed in the shell, and are not hindered by adjacent shell.

Description

Technical Field

[0001] This utility model relates to the field of power distribution system technology, and in particular to an improved housing structure for a 10kV complete switchgear. Background Technology

[0002] 10kV switchgear is the core equipment of power distribution systems. With its compact structure, low cost, and high safety, it is widely used in various power distribution scenarios such as industrial and mining enterprises and commercial establishments. Its housing is mostly assembled or welded from bent metal steel plates. Industry standards only require that the housing have sufficient strength to accommodate larger and heavier 10kV electrical components.

[0003] However, in actual use, the need for maintenance, adjustment, and component replacement after the equipment is put into operation is frequent. The lack of ease of maintenance in the design of traditional shell structures has become a key pain point affecting the operation and maintenance efficiency of power distribution systems. Therefore, an improved shell structure that balances structural strength and ease of maintenance is needed to solve the above problems. Utility Model Content

[0004] This utility model mainly provides an improved housing structure for a 10kV switchgear that facilitates equipment maintenance, adjustment, and component replacement.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an improved housing structure for a 10kV switchgear, comprising: four columns, side beams installed between the two columns and near the top and bottom, two first beam plates and two second beam plates respectively between the two side beams, a first filter plate installed on the surface of one side beam, a second filter plate installed between the first beam plate and the two second beam plates and the column, a main beam fixedly installed between the columns and near both ends, through-wall partitions symmetrically installed between the columns and near the top, through-wall pads installed on the surface of the through-wall partitions, a compartment installed between two through-wall partitions and near one side, and a front bottom plate, a middle bottom plate and a rear bottom plate installed between the four columns and near the bottom.

[0006] Preferably, PE busbar brackets are installed on the surface of the side crossbeam and on both sides of the front base plate. With the above arrangement, the PE busbar can be reliably connected to the grounding terminal of the shell and the grounding terminals of each electrical component in the equipment, which can meet the grounding resistance requirements of 10kV power distribution equipment and prevent safety accidents such as equipment leakage and electric shock caused by poor grounding.

[0007] Preferably, a cable clamp bracket is installed between the front base plate and the middle base plate. This arrangement can firmly fix the cable entering the housing, prevent the cable from shifting due to equipment vibration or external pulling, and avoid poor contact or open circuit caused by loose cable joints.

[0008] Preferably, a zero-sequence current transformer bracket is installed between the middle base plate and the rear base plate. This arrangement can reduce the impact of equipment vibration on the zero-sequence current transformer, prevent the internal components of the current transformer from becoming loose due to vibration, ensure its detection sensitivity and stability, and avoid false triggering or missed triggering of protection actions.

[0009] Preferably, a front crossbeam and a rear crossbeam are installed between the main crossbeams, which can improve the stability of the shell.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, a transition plate is used to realize the transfer and installation of the shell frame, side beams and electrical components, abandoning the traditional bolt through mode. All disassembly and assembly operations can be completed inside the shell without being obstructed by adjacent shells.

[0011] 2. In this utility model, the shell frame is composed of columns, main beams and other solidified structures to ensure that the strength meets the installation requirements of 10kV electrical components; the adjustable part is adapted to different installation requirements through transition plates, which can improve compatibility.

[0012] 3. In this utility model, the assembly advantage of simple structure can be maintained during the factory manufacturing stage, and there is no need to disassemble adjacent equipment during the on-site maintenance stage, which greatly reduces the workload and time consumption of maintenance.

[0013] 4. This utility model integrates special structures such as partitions, through-wall partitions, and cable clamp brackets to meet the functional requirements of small busbar installation, cable fixing, and zero-sequence current transformer deployment, thereby optimizing the utilization of internal space. Attached Figure Description

[0014] Figure 1 A perspective view of the housing structure of an improved 10kV switchgear is provided for this utility model; Figure 2 A side view of the housing structure of an improved 10kV switchgear is presented in this utility model.

[0015] Legend: 1. Column; 2. Side beam; 3. First beam plate; 4. Second beam plate; 5. First filter plate; 6. Second filter plate; 7. Main beam; 8. Through-wall partition; 9. Through-wall pad; 10. Compartment; 11. Front beam; 12. Front base plate; 13. Middle base plate; 14. Rear base plate; 15. PE row bracket; 16. Cable clamp bracket; 17. Zero-sequence current transformer bracket; 18. Rear beam. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Please see Figures 1-2 This utility model provides a technical solution: an improved housing structure for a 10kV switchgear, comprising: four columns 1; side beams 2 installed near the top and bottom of the two side columns 1; two first beam plates 3 and two second beam plates 4 respectively between the two side beams 2; a first filter plate 5 installed on the surface of one side beam 2; a second filter plate 6 installed between the first beam plate 3 and the two second beam plates 4 and the column 1; main beams 7 fixedly installed between the columns 1 near both ends; and through-wall partitions 8 symmetrically installed between the columns 1 near the top; the surface of the through-wall partitions 8 is... A through-wall pad 9 is installed, and a compartment 10 is installed between the two through-wall partitions 8 and near one side. A front bottom plate 12, a middle bottom plate 13, and a rear bottom plate 14 are installed between the four columns 1 and near the bottom. Through the above arrangement, the four columns 1 can serve as the core support of the shell. Side crossbeams 2 are installed at the top and bottom of the columns 1 on both sides. Two first crossbeam plates 3 and two second crossbeam plates 4 are installed between the two side crossbeams 2. A first filter plate 5 is installed on the surface of one side crossbeam 2. A second filter plate 6 is installed between the first crossbeam plate 3, the second crossbeam plate 4 and the column 1, so as to achieve the effect of structural reinforcement and protection of the sides and interior of the shell.

[0019] like Figure 1 As shown, PE busbar brackets 15 are installed on the surface of the side beam 2 and on both sides of the front base plate 12. Through the above-mentioned arrangement, the PE busbar can be reliably connected to the grounding terminal of the shell and the grounding terminals of various electrical components in the equipment, meeting the grounding resistance requirements of 10kV power distribution equipment and preventing safety accidents such as equipment leakage and electric shock caused by poor grounding.

[0020] like Figure 2 As shown, a cable clamp bracket 16 is installed between the front base plate 12 and the middle base plate 13. Through the above-mentioned arrangement, the cable entering the housing can be firmly fixed, preventing the cable from shifting due to equipment vibration or external pulling, and avoiding poor contact or circuit breakage caused by loose cable joints.

[0021] like Figure 2 As shown, a zero-sequence current transformer bracket 17 is installed between the middle base plate 13 and the rear base plate 14. Through the above arrangement, the influence of equipment vibration on the zero-sequence current transformer can be reduced, the internal components of the current transformer can be prevented from loosening due to vibration, the detection sensitivity and stability can be ensured, and the protection action can be avoided by false triggering or missed triggering.

[0022] like Figure 1 As shown, a front crossbeam 11 and a rear crossbeam 18 are installed between the main crossbeams 7. The above arrangement can improve the stability of the shell.

[0023] The usage and working principle of this device are as follows: Four columns 1 serve as the core support of the shell. Side crossbeams 2 are installed at the top and bottom near the two side columns 1. Two first crossbeam plates 3 and two second crossbeam plates 4 are installed between the two side crossbeams 2. A first filter plate 5 is installed on the surface of one side crossbeam 2. A second filter plate 6 is installed between the first crossbeam plate 3, the second crossbeam plate 4 and the column 1, thereby achieving structural reinforcement and protection of the sides and interior of the shell. Main crossbeams 7 are fixedly installed near both ends between the columns 1. Front crossbeams 11 and rear crossbeams 18 are installed between the main crossbeams 7, forming a stable frame in the front-to-back direction of the shell. Through-wall partitions 8 are symmetrically installed near the top between the columns 1. Through-wall pads 9 are installed on the surface of the through-wall partitions 8 to meet the requirements. To meet the requirements for through-wall installation of electrical components, a compartment 10 is installed near one side between two through-wall partitions 8 to house components such as small busbars; a front base plate 12, a middle base plate 13, and a rear base plate 14 are installed near the bottom between four columns 1 to form a bottom support surface; PE busbar brackets 15 are installed on both sides of the front base plate 12 on the surface of the side beam 2; cable clamp brackets 16 are installed between the front base plate 12 and the middle base plate 13; and zero-sequence current transformer brackets 17 are installed between the middle base plate 13 and the rear base plate 14, respectively achieving dedicated fixing of PE busbars, cables, and zero-sequence current transformers; through the cooperation of the solidified frame and the transition adapter structure, the side beam 2 and electrical components can be directly installed and removed inside the housing without disassembling adjacent equipment, meeting on-site maintenance needs.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An improved housing structure for a 10kV switchgear assembly, characterized in that, include: Four columns (1) are provided with side beams (2) installed between the two side columns (1) and near the top and bottom. Two first beam plates (3) and two second beam plates (4) are provided between the two side beams (2). A first filter plate (5) is installed on the surface of one side beam (2). A second filter plate (6) is installed between the first beam plate (3) and the two second beam plates (4) and the column (1). A main beam (7) is fixedly installed between the columns (1) and near both ends. Through-wall partitions (8) are symmetrically installed between the columns (1) and near the top. Through-wall pads (9) are installed on the surface of the through-wall partitions (8). A compartment (10) is installed between the two through-wall partitions (8) and near one side. A front bottom plate (12), a middle bottom plate (13) and a rear bottom plate (14) are installed between the four columns (1) and near the bottom.

2. The housing structure of an improved 10kV switchgear according to claim 1, characterized in that: PE row brackets (15) are installed on the surface of the side beam (2) and on both sides of the front bottom plate (12).

3. The housing structure of an improved 10kV switchgear according to claim 1, characterized in that: A cable clamp bracket (16) is installed between the front base plate (12) and the middle base plate (13).

4. The housing structure of an improved 10kV switchgear according to claim 1, characterized in that: A zero-sequence current transformer bracket (17) is installed between the middle base plate (13) and the rear base plate (14).

5. The housing structure of an improved 10kV switchgear according to claim 1, characterized in that: The main crossbeams (7) are connected by a front crossbeam (11) and a rear crossbeam (18).

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