Box-type substation box body grounding protection device

Abstract

The utility model discloses a box-type transformer substation box body grounding protection device, and relates to the technical field of grounding protection devices, the box-type transformer substation box body grounding protection device comprises a box-type transformer substation and a grounding base, the grounding base is installed at the bottom of the box-type transformer substation, and a first grounding assembly and a second grounding assembly are installed between the four corners of the box-type transformer substation and the four corners of the grounding base respectively. According to the scheme, through the structural design of the first grounding assembly and the second grounding assembly, the first grounding assembly provides structural support through the metal supporting foot and the flange connecting plate, and is combined with the first conductive bolt through the fixing screw hole to form tight connection; a grounding cable in the second grounding assembly is connected with a second conductive bolt through a metal lantern ring, so that the flexibility of the grounding system is improved, each connection point can bear certain mechanical pressure due to the design, meanwhile, long-term stable connection between the box-type substation and the ground can be effectively ensured, and the service life of the box-type substation is prolonged. Therefore, the potential safety hazard of grounding connection between the box-type substation and the ground can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding protection devices, in particular to a box-type transformer substation box body grounding protection device. Background Art

[0002] The substation cabinet grounding protection device is a safety device dedicated to box-type substations1. Its main function is to ensure that the substation cabinet and the equipment inside can be effectively grounded in the event of electrical leakage or other faults, so as to prevent electric shock accidents and protect the safety of equipment. This device usually contains a series of grounding elements, such as grounding cables, grounding electrodes, grounding screws, etc., which together constitute a grounding system to effectively connect the cabinet to the earth. During the operation of the substation, the metal casing of the electrical equipment may be charged due to factors such as equipment aging, installation errors or external influences. If people come into contact with these live parts, they may suffer electric shock.

[0003] The box grounding protection device establishes a stable and reliable low-resistance grounding path. Once leakage current occurs, it can guide the current to the ground, thereby avoiding the harm of live parts to personal safety. At the same time, this also helps to protect the stable operation of the power system and prevent equipment damage caused by increased ground potential. At present, most of the existing box grounding protection devices adopt a fixed integrated structural design. This design has the characteristics of good integrity and high stability. However, during use, due to its fixed integrated structure, its parts cannot be disassembled, connected, repaired and replaced according to the use situation, which leads to some problems, such as the inability to repair or replace damaged parts in time, and the inability to flexibly adjust or expand according to actual needs. Most importantly, there is a safety hazard because it is impossible to effectively ensure the long-term stable connection between the box of the box-type substation 1 and the ground. Utility Model Content

[0004] In order to improve the above-mentioned problems, the utility model provides a box-type substation box body grounding protection device.

[0005] The utility model provides a box-type substation box body grounding protection device, which adopts the following technical scheme: a box-type substation box body grounding protection device, comprising a box-type substation and a grounding base, the grounding base is installed at the bottom of the box-type substation, and a first grounding component and a second grounding component are respectively installed between the box-type substation and the four corners of the grounding base;

[0006] The grounding base includes a cement matrix, and metal conductive plates are respectively installed at the top four corners of the cement matrix and the bottom four corners of the box-type substation. The bottom of the metal conductive plate arranged on the top of the cement matrix is ​​also connected to grounding piles respectively.

[0007] Based on the above technical features: The substation box grounding protection device designed in this scheme aims to establish a stable and effective grounding system to ensure that the box-type substation can still protect the safety of personnel and internal equipment under abnormal conditions. The core design concept is to provide a stable and easy-to-maintain grounding mechanism through a clever structural combination. The grounding base is installed at the bottom of the box-type substation, and its four corners are connected to the four corners of the bottom of the substation through a metal conductive plate set on a cement matrix, and then extends downward to the grounding pile, thereby forming the basis of the grounding path;

[0008] The uniqueness of this device lies in that the first grounding component and the second grounding component are respectively installed between the box-type substation and the four corners of the grounding base. The first grounding component provides structural support through metal legs and flange connecting plates, and is combined with the first conductive bolt through fixing screw holes to form a tight connection. The grounding cable in the second grounding component is connected to the second conductive bolt through a metal ring, which increases the flexibility of the grounding system. This design enables each connection point to withstand a certain amount of mechanical pressure, and can also effectively ensure the long-term stable connection between the box-type substation and the ground, thereby reducing the safety hazards of the grounding connection between the box-type substation and the ground.

[0009] As a box-type substation box grounding protection device described in the utility model, wherein: first conductive bolts are respectively installed around one side of the metal conductive plate, and a second conductive bolt is also arranged in the middle of one side of the metal conductive plate.

[0010] Based on the above technical features: Through the above design elements, this solution makes the box-type substation box grounding protection device in the patent not only provide improvements in structure and performance, but also has significant improvements in safety, maintainability and adaptability, ensuring the long-term stable operation of the substation.

[0011] As a box-type substation box grounding protection device described in the utility model, wherein: the first grounding component includes a metal support foot, both ends of the metal support foot are installed with flange connecting plates, and fixing screw holes are respectively opened at the four corners of one side of the flange connecting plate.

[0012] Based on the above technical features: This solution ensures that the current from the substation box to the grounding base can be safely and efficiently conducted in the entire grounding system through the structural design of the first grounding component, while providing reliable mechanical support for the spanning components, greatly improving the stability and maintainability of the grounding system, thereby enhancing the safety and operational performance of the entire box-type substation.

[0013] As a box-type substation box grounding protection device described in the utility model, wherein: the fixing screw hole matches the first conductive bolt structure, and the fixing screw hole and the first conductive bolt are transitionally matched.

[0014] Based on the above technical features: This solution not only improves the stability and electrical connectivity of the connections between the components in the grounding system, but also increases the safety and maintainability of the device through the matching relationship between the fixed screw hole and the first conductive bolt, and significantly enhances the overall performance and reliability of the box-type substation.

[0015] As a box-type substation box grounding protection device described in the utility model, wherein: the second grounding component includes a grounding cable, and both ends of the grounding cable are respectively connected to metal rings.

[0016] Based on the above technical features: This solution, through the structural design of the second grounding component, is crucial to achieving efficient, flexible and safe connection of the substation grounding system, and improves the overall performance and maintainability of the system.

[0017] As a box-type substation box grounding protection device described in the utility model, the metal ring is an iron-aluminum transition piece, the metal ring matches the second conductive bolt structure, and there is a transition fit between the metal ring and the second conductive bolt.

[0018] Based on the above technical features: This solution not only improves the structural stability and electrical conductivity of the grounding device through the structural design of transition fit between the metal ring and the second conductive bolt, but also provides practical benefits of easy installation and maintenance, thereby enhancing the overall effectiveness of the grounding protection device of the box-type substation.

[0019] In summary, the present invention has at least one of the following beneficial effects:

[0020] 1. The substation box grounding protection device designed in this scheme overcomes the shortcomings of the traditional fixed integrated grounding device, which is mainly reflected in the following beneficial effects: First, the grounding protection device adopts a modular design. Through the detachable conductive bolts, metal legs and flange connection plates, when maintenance or replacement is required, it can be carried out locally without replacing the entire grounding device. This greatly reduces the maintenance cost and increases the service life of the device; secondly, by setting a metal conductive plate on the top of the cement matrix and connecting the grounding pile, it not only ensures the physical strength of the grounding system, but also provides a low-resistance path, thereby improving the grounding efficiency. Even under harsh environmental conditions, the grounding system can maintain stable performance; in addition, the flexibility of the grounding device design allows it to be adjusted when the terrain or soil resistivity changes, thereby maintaining good contact and long-term stable connection between the box-type substation and the ground, effectively eliminating all potential risks caused by poor grounding; in terms of safety, by ensuring the reliability and stability of the grounding system, it effectively prevents electrical fires or electric shock accidents that may be caused by leakage and fault current, and ensures the safe operation of the substation.

[0021] 2. From the above, it can be seen that the substation box grounding protection device designed in this scheme not only provides a safe, reliable and maintenance-friendly box-type substation box grounding protection device, but also its design greatly improves the safety and stability of the grounding system, and plays an important role in improving the safe operation and maintenance level of the substation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the grounding base structure of the utility model;

[0024] Figure 3 It is a schematic diagram of the structure of the first grounding component of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the second grounding component of the utility model.

[0026] Description of reference numerals:

[0027] 1. Box-type substation; 2. Grounding base; 3. First grounding assembly; 4. Second grounding assembly; 5. Cement matrix; 6. Metal conductive plate; 7. Grounding pile; 8. First conductive bolt; 9. Second conductive bolt; 10. Metal support foot; 11. Flange connecting plate; 12. Fixing screw hole; 13. Grounding cable; 14. Metal ring. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-4 The utility model is described in further detail.

[0029] See also Figure 1-2 The utility model provides a box-type substation box body grounding protection device, including a box-type substation 1 and a grounding base 2, the grounding base 2 is installed at the bottom of the box-type substation 1, and a first grounding component 3 and a second grounding component 4 are respectively installed between the box-type substation 1 and the four corners of the grounding base 2. The grounding base 2 includes a cement matrix 5, and metal conductive plates 6 are respectively installed at the top four corners of the cement matrix 5 and the bottom four corners of the box-type substation 1, and the bottom of the metal conductive plate 6 arranged on the top of the cement matrix 5 is also connected to grounding piles 7.

[0030] First conductive bolts 8 are installed around one side of the metal conductive plate 6, and a second conductive bolt 9 is also provided in the middle of one side of the metal conductive plate 6. Through the above-mentioned design elements, the box-type substation 1 in the patent provides improvements in structure and performance, and also has significant improvements in safety, maintainability and adaptability, ensuring the long-term stable operation of the substation. The first grounding component 3 includes a metal support foot 10, and flange connecting plates 11 are installed at both ends of the metal support foot 10. Fixing screw holes 12 are respectively opened at the four corners of one side of the flange connecting plate 11. Through the structural design of the first grounding component 3, it is ensured that in the entire grounding system, the current from the substation box to the grounding base can be safely and efficiently conducted, and at the same time, reliable mechanical support for the crossing component is provided, which greatly improves the stability and maintainability of the grounding system, thereby enhancing the safety and operating performance of the entire box-type substation 1.

[0031] The fixing screw hole 12 matches the structure of the first conductive bolt 8, and the fixing screw hole 12 and the first conductive bolt 8 are transitionally matched. Through the matching relationship between the fixing screw hole 12 and the first conductive bolt 8, not only the stability and electrical connectivity of the connection between the various components in the grounding system are improved, but also the safety and maintainability of the device are increased, and the overall performance and reliability of the box-type substation 1 are significantly enhanced.

[0032] The second grounding component 4 includes a grounding cable 13, and both ends of the grounding cable 13 are respectively connected with metal rings 14. The structural design of the second grounding component 4 is crucial to achieving efficient, flexible and safe connection of the substation grounding system, and improves the overall performance and maintainability of the system. The metal ring 14 is an iron-aluminum transition piece, and the metal ring 14 matches the structure of the second conductive bolt 9. There is a transition fit between the metal ring 14 and the second conductive bolt 9. The structural design of the transition fit between the metal ring 14 and the second conductive bolt 9 not only improves the structural stability and electrical conductivity of the grounding device, but also provides the practical benefit of easy installation and maintenance, thereby enhancing the overall effectiveness of the grounding protection device of the box-type substation 1.

[0033] Working principle: The substation box grounding protection device designed in this scheme aims to establish a stable and effective grounding system to ensure that the box-type substation 1 can still protect the safety of personnel and internal equipment under abnormal conditions. The core design concept is to provide a stable and easy-to-maintain grounding mechanism through a clever structural combination. The grounding base 2 is installed at the bottom of the box-type substation 1, and its four corners are connected to the four corners of the bottom of the substation through a metal conductive plate 6 set on a cement base 5, and then extends downward to the grounding pile 7, thereby forming the basis of the grounding path;

[0034] The uniqueness of the device lies in that a first grounding component 3 and a second grounding component 4 are respectively installed between the four corners of the box-type substation 1 and the grounding base 2. The first grounding component 3 provides structural support through metal legs 10 and flange connecting plates 11, and is combined with the first conductive bolt 8 through fixing screw holes 12 to form a tight connection. The grounding cable 13 in the second grounding component 4 is connected to the second conductive bolt 9 through a metal ring 14, which increases the flexibility of the grounding system. Such a design enables each connection point to withstand a certain amount of mechanical pressure, and can also effectively ensure a long-term stable connection between the box-type substation 1 and the ground, thereby reducing the safety hazards of the grounding connection between the box-type substation 1 and the ground.

[0035] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A box-type substation box body grounding protection device, comprising a box-type substation 1 (1) and a grounding base (2), wherein the grounding base (2) is installed at the bottom of the box-type substation 1 (1), and is characterized in that: A first grounding component (3) and a second grounding component (4) are respectively installed between the four corners of the box-type substation 1 (1) and the grounding base (2); The grounding base (2) comprises a cement matrix (5), and metal conductive plates (6) are respectively installed at the four corners of the top of the cement matrix (5) and the four corners of the bottom of the box-type substation 1 (1), and the bottom of the metal conductive plates (6) arranged on the top of the cement matrix (5) are also respectively connected to grounding piles (7).

2. A box-type substation box grounding protection device according to claim 1, characterized in that: First conductive bolts (8) are respectively installed around one side of the metal conductive plate (6), and a second conductive bolt (9) is also arranged in the middle of one side of the metal conductive plate (6).

3. A box-type substation box grounding protection device according to claim 2, characterized in that: The first grounding component (3) comprises a metal support foot (10), both ends of which are provided with flange connection plates (11), and four corners of one side of the flange connection plate (11) are respectively penetrated with fixing screw holes (12).

4. A box-type substation box grounding protection device according to claim 3, characterized in that: The fixing screw hole (12) matches the structure of the first conductive bolt (8), and the fixing screw hole (12) and the first conductive bolt (8) are transitionally matched.

5. A box-type substation box grounding protection device according to claim 4, characterized in that: The second grounding component (4) comprises a grounding cable (13), and two ends of the grounding cable (13) are respectively connected to metal rings (14).

6. A box-type substation box grounding protection device according to claim 5, characterized in that: The metal collar (14) is an iron-aluminum transition piece. The metal collar (14) matches the structure of the second conductive bolt (9), and there is a transition fit between the metal collar (14) and the second conductive bolt (9).

Images