35kV visible bus box with built-in lightning arrester

Abstract

The 35kV visible bus box with the built-in lightning arrester comprises a bus box body, one side of the bus box body is fixedly connected with a side baffle plate, the inside of the side baffle plate is fixedly connected with a transparent plate, and the upper end of the bus box body is provided with a connecting port. According to the invention, through the arrangement of the lightning arrester, lightning impulse can be effectively absorbed, overvoltage can be dissipated, and impulse and damage degree can be reduced, so that the transformer and transformer accessory equipment can be protected from being struck by lightning, and the lightning arrester can also be used as a post insulator to support a wiring copper bar in the box body of the bus box. According to the novel bus box, the use space in the box body of the bus box can be effectively saved, through the arrangement of the transparent plate, the situation in the box body of the bus box can be observed conveniently, possible problems can be found in time, accordingly, corresponding measures are taken for repair and maintenance, stable operation of a transformer is guaranteed, and through the arrangement of the end plate, wiring operation is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of electric power facilities, in particular to a 35kV visible bus box with a built-in lightning arrester. Background Art

[0002] The transformer bus box is a box installed on the outside of the transformer bushing. It can effectively prevent electric shock and fire accidents and protect electrical equipment. At the same time, the bus box can also be used as an isolator for various equipment in the substation to prevent electrical short circuits between equipment and ensure the safe operation of the power system. It plays an extremely important role in the electrical system.

[0003] In the prior art, the transformer bus box is mostly installed directly between the bushing and the transformer for protection. However, in actual use, overvoltage and lightning strikes are prone to occur at the connection between the transformer bushing and the line, which can easily cause damage to the internal components of the transformer and require maintenance, thereby increasing the cost of use and being inconvenient to use. Summary of the invention

[0004] The object of the present invention is to provide a 35kV visible bus box with a built-in lightning arrester to solve the problem that the transformer bus box proposed in the above background technology is mostly directly installed between the bushing and the transformer for protection, and in actual use, overvoltage and lightning strikes are prone to occur at the connection between the transformer bushing and the line, which can easily cause damage to the internal components of the transformer and require maintenance, thereby increasing the cost of use and being inconvenient to use.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a 35kV visual busbar box with a built-in lightning arrester, comprising a busbar box body, one side of the busbar box body is fixedly connected to a side baffle, the interior of the side baffle is fixedly connected to a transparent plate, the upper end of the busbar box body is provided with a connection port, both sides above the connection port are provided with end plates, one end of the end plate is rotatably connected to the busbar box body, a lightning arrester is installed inside the busbar box body, a feed port and a limiting port are provided at the lower end of the busbar box body, and through the arrangement of the lightning arrester, it is possible to have It can effectively absorb lightning impact, dissipate overvoltage, reduce impact and its damage, so as to protect the transformer itself and transformer ancillary equipment from lightning strikes. Moreover, the lightning arrester can also serve as a supporting insulator to support the wiring copper bar in the bus box, which can effectively save the use space in the bus box. Through the setting of the transparent plate, it is convenient to observe the situation inside the bus box, and timely discover possible problems, so as to take corresponding measures to repair and maintain it, so as to ensure the stable operation of the transformer. Through the setting of the end plate, it is convenient to carry out wiring operations.

[0006] Preferably, a limiting pressure frame is fixedly connected to the lower end of the inner part of the busbar box body, and a top sealing plate is slidably connected to the inner part of the limiting pressure frame.

[0007] Preferably, a top block is fixedly connected to one side of the top sealing plate, and a screw is connected to the internal thread of the bus box body, one end of the screw is in contact with the top block, and the top sealing plate covers the feed port. The feed port is set to pass the transformer bushing, and cooperate with the top sealing plate. During installation, the bushing is passed through the feed port, and then the bus box body is moved to make the base of the bushing enter the limited port, and then the screw is rotated to push the top sealing plate to move, so that the protrusion and the top sealing plate clamp the bottom of the bushing for extrusion and fixation. In combination with the No. 2 rubber pad, the sealing effect can be increased and the stability can be ensured. At the same time, this design can directly pry the bus box body when an emergency occurs inside, so that the bus box body and the transformer can be disconnected, and a gap will appear, so that timely rescue can be carried out. Compared with direct bolt fixing, rescue is faster, thereby increasing safety in use.

[0008] Preferably, a protrusion is fixedly connected to the lower end of the inner part of the bus box body at the edge of the limiting opening, a No. 1 connecting groove is opened on one side of the protrusion, a No. 2 connecting groove is opened at one end of the top sealing plate, and a No. 2 rubber pad is fixedly connected to the inside of the No. 1 connecting groove and the No. 2 connecting groove.

[0009] Preferably, a No. 3 connecting groove is opened at the other end of the end plate, and a No. 1 rubber pad is fixedly connected inside the No. 3 connecting groove. The other end of the end plate is fixed to the bus box body by bolts. In this way, a lever is used to squeeze the No. 1 rubber pad between the end plate and the wiring, thereby increasing the sealing effect and preventing external moisture and powder from entering the bus box body. This has certain safety hazards, thereby ensuring the stable operation of the transformer.

[0010] Preferably, a connecting seat is fixedly connected to the lower end of the arrester, and assembly grooves are provided on both sides of the connecting seat, and the assembly grooves are U-shaped.

[0011] Preferably, a No. 2 slide groove is provided on both sides of the assembly groove, and a slot is provided on both sides of the No. 2 slide groove.

[0012] Preferably, the internal sliding connection of the No. 2 slide groove is provided with a limiting slider, and a No. 1 slide groove is penetrated on one side of the limiting slider. Through the arrangement of the assembly groove and the limiting slider, when the lightning arrester is installed, the lightning arrester is moved horizontally and the studs in the bus box body are inserted into the assembly groove, which makes installation more convenient, reduces the required height of the bus box body, and saves space utilization.

[0013] Preferably, an insert rod is inserted into the interior of the slot, and the insert rod is slidably connected to the No. 1 slide groove. One end of the limit slider is fixedly connected to a spring. The stud is limited by the spring and the No. 1 slide groove to ensure that the stud is always located in the assembly groove, thereby facilitating the subsequent connection of the nut and the secondary fixation of the lightning arrester. In this way, the installation of the lightning arrester is more stable and convenient, and it is easy to use. Through the setting of the insert rod, the limit slider can be easily disassembled for replacement. At the same time, you can choose whether to install the limit slider according to personal needs.

[0014] Preferably, four corners at one end of the busbar box body are provided with corner grooves, and four corners on one side of the side baffle are fixedly connected with clamping blocks, and the clamping blocks are clamped with the corner grooves.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the lightning arrester can effectively absorb lightning impact, dissipate overvoltage, reduce impact and its damage, thereby protecting the transformer itself and the transformer accessories from lightning strikes. The lightning arrester can also serve as a supporting insulator to support the wiring copper busbar in the bus box body, which can effectively save the use space in the bus box body. The transparent plate is provided to facilitate observation of the situation inside the bus box body, and possible problems can be discovered in time, so that corresponding measures can be taken for repair and maintenance to ensure the stable operation of the transformer. The end plate is provided to facilitate wiring operations.

[0016] 2. In the present invention, the feed port is provided to pass through the transformer bushing, and cooperate with the top sealing plate. During installation, the bushing is passed through the feed port, and then the bus box body is moved to make the base of the bushing enter the limited port, and then the screw is rotated to push the top sealing plate to move, so that the protrusion and the top sealing plate clamp the bottom of the bushing to squeeze and fix it. In combination with the No. 2 rubber pad, the sealing effect can be increased and the stability can be ensured. At the same time, this design can directly pry the bus box body when an emergency occurs inside, so that the bus box body and the transformer can be disconnected, and a gap will appear, so that timely rescue can be carried out. Compared with direct bolt fixing, rescue is faster, thereby increasing safety in use.

[0017] 3. In the present invention, by setting the assembly groove and the limit slider, when the lightning arrester is installed, the lightning arrester is moved horizontally, and the stud in the bus box body is inserted into the assembly groove, which is convenient for installation, reduces the required height of the bus box body, and saves space utilization. The stud is limited by the spring and the No. 1 slide groove to ensure that the stud is always located in the assembly groove, thereby facilitating the subsequent connection of the nut and the secondary fixation of the lightning arrester. In this way, the installation of the lightning arrester is more stable and convenient, and it is easy to use. By setting the plug rod, the limit slider can be easily disassembled for replacement. At the same time, you can choose whether to install the limit slider according to personal needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional structure of the 35kV visible bus box with built-in lightning arrester of the present invention is shown in FIG. Figure 1 ; Figure 2 The three-dimensional structure of the 35kV visible bus box with built-in lightning arrester of the present invention is shown in FIG. Figure 2 ; Figure 3 This is a schematic diagram of the open state of the 35kV visual busbar box with a built-in lightning arrester of the present invention; Figure 4 It is an exploded view of the connection structure between the bus box body and the top sealing plate in the 35kV visible bus box with built-in lightning arrester of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the lightning arrester in the 35kV visual bus box with built-in lightning arrester of the present invention; Figure 6 This is an exploded view of the internal structure of the arrester in the 35kV visual bus box with built-in arrester of the present invention; Figure 7 This is an exploded view of the connection state between the middle end plate and the No. 1 rubber pad of the 35kV visual bus box with a built-in lightning arrester of the present invention.

[0019] In the figure: 1. Busbar box body; 2. Side baffle; 3. Transparent plate; 4. End plate; 5. No. 1 rubber pad; 6. Feed inlet; 7. Limiting port; 8. Connection port; 9. Lightning arrester; 10. Limiting pressure frame; 11. Top sealing plate; 12. Screw; 13. Bump; 14. No. 1 connection groove; 15. No. 2 rubber pad; 16. No. 2 connection groove; 17. Top block; 18. Block; 19. Corner groove; 20. Connection seat; 21. Assembly groove; 22. Limiting slider; 23. Insert rod; 24. No. 1 slide groove; 25. Slot; 26. No. 2 slide groove; 27. Spring; 28. No. 3 connection groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example 1: Reference Figure 1 - Figure 4 As shown: a 35kV visual busbar box with a built-in lightning arrester comprises a busbar box body 1, a side baffle 2 is fixedly connected to one side of the busbar box body 1, a transparent plate 3 is fixedly connected to the inside of the side baffle 2, a connection port 8 is provided at the upper end of the busbar box body 1, end plates 4 are provided on both sides above the connection port 8, one end of the end plate 4 is rotatably connected to the busbar box body 1, a lightning arrester 9 is installed inside the busbar box body 1, and a feed port 6 and a limiting port 7 are provided at the lower end of the busbar box body 1.

[0022] In the present invention, by setting the lightning arrester 9, it is possible to effectively absorb lightning impact, dissipate overvoltage, reduce impact and its damage, thereby protecting the transformer itself and the transformer accessories from lightning strikes, and the lightning arrester 9 can also serve as a support insulator to support the wiring copper busbar in the bus box body 1, which can effectively save the use space in the bus box body 1. By setting the transparent plate 3, it is convenient to observe the situation inside the bus box body 1, and to discover possible problems in time, so as to take corresponding measures to repair and maintain, thereby ensuring the stable operation of the transformer. By setting the end plate 4, it is convenient to perform wiring operations.

[0023] Embodiment 2: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7As shown, the lower end of the busbar box body 1 is fixedly connected to the limiting pressure frame 10, the limiting pressure frame 10 is slidably connected to the top sealing plate 11, one side of the top sealing plate 11 is fixedly connected to the top block 17, the busbar box body 1 is threadedly connected to the screw 12, one end of the screw 12 is in contact with the top block 17, the top sealing plate 11 covers the feed port 6, the lower end of the busbar box body 1 is fixedly connected to the edge of the limiting port 7, a protrusion 13 is fixedly connected, one side of the protrusion 13 is provided with a first connection groove 14, and one end of the top sealing plate 11 is provided with a second connection groove 16. The inside of the No. 1 connecting groove 14 and the No. 2 connecting groove 16 are both fixedly connected with the No. 2 rubber pad 15, the other end of the end plate 4 is provided with a No. 3 connecting groove 28, the inside of the No. 3 connecting groove 28 is fixedly connected with the No. 1 rubber pad 5, the other end of the end plate 4 is fixed to the bus box body 1 by means of bolts, in this way, the No. 1 rubber pad 5 is squeezed between the end plate 4 and the wiring by means of a lever, thereby increasing the sealing effect and preventing external moisture and powder from entering the bus box body 1, which has certain safety hazards, thereby ensuring the stable operation of the transformer.

[0024] In the present invention, the feed port 6 is provided to pass through the transformer bushing, and cooperates with the top sealing plate 11. During installation, the bushing is passed through the feed port 6, and then the bus box body 1 is moved to make the base of the bushing enter the limiting port 7, and then the screw 12 is rotated to push the top sealing plate 11 to move, so that the protrusion 13 and the top sealing plate 11 clamp the bottom of the bushing to squeeze and fix it. In cooperation with the No. 2 rubber pad 15, the sealing effect can be increased and the stability can be ensured. At the same time, this design can directly pry the bus box body 1 when an emergency occurs inside, so that the bus box body 1 and the transformer can be disconnected, and a gap will appear, so that timely rescue can be carried out. Compared with direct bolt fixing, rescue is faster, thereby increasing the safety of use.

[0025] Embodiment 3: According to Figure 1 - Figure 6 As shown, the lower end of the lightning arrester 9 is fixedly connected to a connecting seat 20, and both sides of the connecting seat 20 are provided with assembly grooves 21, and the assembly grooves 21 are U-shaped. Both sides of the assembly groove 21 are provided with No. 2 slide grooves 26, and both sides of the No. 2 slide grooves 26 are provided with slots 25. The interior of the No. 2 slide groove 26 is slidably connected with a limiting slider 22, and one side of the limiting slider 22 is penetrated by a No. 1 slide groove 24, and a plug rod 23 is inserted into the interior of the slot 25, and the plug rod 23 is slidably connected to the No. 1 slide groove 24, and one end of the limiting slider 22 is fixedly connected with a spring 27, and the four corners of one end of the busbar box body 1 are provided with corner grooves 19, and the four corners of one side of the side baffle 2 are fixedly connected with a clamping block 18, and the clamping block 18 is clamped with the corner groove 19.

[0026] In the present invention, by setting the assembly groove 21 and the limiting slider 22, when the lightning arrester 9 is installed, the lightning arrester 9 is moved horizontally, and the stud in the bus box body 1 is inserted into the assembly groove 21, which is convenient for installation, reduces the required height of the bus box body 1, and saves space. The stud is limited by the spring 27 and the No. 1 slide groove 24 to ensure that the stud is always located in the assembly groove 21, so as to facilitate the subsequent connection of the nut and the secondary fixation of the lightning arrester 9. In this way, the installation of the lightning arrester 9 is more stable and convenient, and it is easy to use. By setting the insertion rod 23, the limiting slider 22 can be easily disassembled for replacement. At the same time, whether to install the limiting slider 22 can be selected according to personal needs.

[0027] The method of use and working principle of the device: When in use, first put the lightning arrester 9 into the busbar box body 1, and insert the stud into the assembly groove 21. During this process, the stud will squeeze the limit slider 22, so that the limit slider 22 slides into the second slide groove 26 until the stud is completely located in the assembly groove 21. The limit slider 22 is squeezed out by the spring 27 to limit the stud and the assembly groove 21. Then use a nut to connect the stud, fix the lightning arrester 9, then take out the screw 12, pull the top sealing plate 11, fully expand the feed port 6, and then put the transformer The sleeve on the device passes through the feed port 6 until the sleeve is completely located in the bus box body 1, and then the top sealing plate 11 is pushed to make the sleeve located between the two No. 2 rubber pads 15, and then the screw 12 is connected to the bus box body 1, and the screw 12 is rotated to squeeze the top sealing plate 11 so that the protrusion 13 and the top sealing plate 11 squeeze the bottom of the sleeve to fix it, and then the bolts on the upper end of the end plate 4 are removed, the end plate 4 is opened, and the cable is connected to the sleeve, and then the end plate 4 is closed, and the end plate 4 is fixed to the bus box body 1 with bolts to complete the installation.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A 35kV visible busbar box with a built-in lightning arrester, comprising a busbar box body (1), characterized in that: A side baffle (2) is fixedly connected to one side of the busbar box body (1), a transparent plate (3) is fixedly connected inside the side baffle (2), a connection port (8) is provided at the upper end of the busbar box body (1), end plates (4) are provided on both sides above the connection port (8), one end of the end plate (4) is rotatably connected to the busbar box body (1), a lightning arrester (9) is installed inside the busbar box body (1), and a feed port (6) and a limiting port (7) are provided at the lower end of the busbar box body (1).

2. The 35kV visible busbar box with built-in lightning arrester according to claim 1 is characterized in that: The lower end of the interior of the busbar box body (1) is fixedly connected to a limiting pressure frame (10), and the interior of the limiting pressure frame (10) is slidably connected to a top sealing plate (11).

3. The 35kV visible busbar box with built-in lightning arrester according to claim 2 is characterized in that: A top block (17) is fixedly connected to one side of the top sealing plate (11), a screw rod (12) is threadedly connected to the interior of the busbar box body (1), one end of the screw rod (12) is in contact with the top block (17), and the top sealing plate (11) covers the feed port (6).

4. The 35kV visible busbar box with built-in lightning arrester according to claim 2 is characterized in that: A protrusion (13) is fixedly connected to the lower end of the busbar box body (1) at the edge of the limiting opening (7), a first connection groove (14) is provided on one side of the protrusion (13), a second connection groove (16) is provided on one end of the top sealing plate (11), and a second rubber pad (15) is fixedly connected to the inside of the first connection groove (14) and the second connection groove (16).

5. The 35kV visible busbar box with built-in lightning arrester according to claim 4 is characterized in that: A No. 3 connecting groove (28) is formed at the other end of the end plate (4), and a No. 1 rubber pad (5) is fixedly connected inside the No. 3 connecting groove (28).

6. The 35kV visible busbar box with built-in lightning arrester according to claim 1 is characterized in that: The lower end of the lightning arrester (9) is fixedly connected to a connecting seat (20), and both sides of the connecting seat (20) are provided with assembly grooves (21), and the assembly grooves (21) are of U-shaped design.

7. The 35kV visible busbar box with built-in lightning arrester according to claim 6 is characterized in that: A second slide groove (26) is provided on both sides of the assembly groove (21), and a slot (25) is provided on both sides of the second slide groove (26).

8. The 35kV visible busbar box with built-in lightning arrester according to claim 7 is characterized in that: The second slide groove (26) is slidably connected to a limit slider (22) inside, and a first slide groove (24) is provided through one side of the limit slider (22).

9. The 35kV visible busbar box with built-in lightning arrester according to claim 8, characterized in that: An insertion rod (23) is inserted into the interior of the slot (25), and the insertion rod (23) is slidably connected to the first slide groove (24). One end of the limit slide block (22) is fixedly connected to a spring (27).

10. The 35kV visible busbar box with built-in lightning arrester according to claim 1, characterized in that: Four corners at one end of the busbar box body (1) are provided with corner grooves (19), and four corners at one side of the side baffle (2) are fixedly connected with clamping blocks (18), and the clamping blocks (18) are clamped with the corner grooves (19).

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