Experimental device of high-voltage zinc oxide arrester

Abstract

The invention discloses an experimental device for a high-voltage zinc oxide arrester. The experimental device comprises a first support plate and a second support plate rotationally mounted at one end of the first support plate, the support bolt is arranged at one end of the upper surface of the second support plate to support the lightning arrester; the grounding bolt is arranged at the other end of the upper surface of the second support plate for grounding; the supporting seat is arranged on the inner side of the first supporting plate in a sliding manner so as to support the high-voltage lead after being connected with an insulating rod; the at least two supporting blocks are rotationally mounted on the first supporting plate; by arranging the first supporting plate, the second supporting plate, the supporting bolt, the grounding bolt, the supporting seat and the supporting block, the lightning arrester can be conveniently placed and fixed, a high-voltage lead in an experiment can be supported to be high, the safety of the experiment is guaranteed, after use, folding is easy, the size in the carrying process is reduced, and the carrying convenience is improved.

Description

Technical Field

[0001] This invention specifically relates to an experimental apparatus for a high-voltage zinc oxide surge arrester. Background Technology

[0002] In power systems, zinc oxide surge arresters are crucial devices for protecting transmission and transformation equipment from damage caused by lightning overvoltages and operational overvoltages. To ensure their reliable performance, regular on-site tests are necessary to verify their insulation performance and grounding effectiveness. Currently, when conducting on-site tests on zinc oxide surge arresters of 10kV and above, it is usually necessary to remove the arrester from the switchgear or crossarm and temporarily erect a test support.

[0003] Existing temporary support structures lack reliable fixing mechanisms, making surge arresters prone to tilting or even tipping over during testing. This not only affects the accuracy of test data but also poses risks to personal safety and equipment damage. Furthermore, the high-voltage leads in experiments are often not effectively supported, resulting in insufficient distance to ground and a risk of discharge. The fixed support structures are also bulky and difficult to fold and store, which is particularly unfavorable for rapid deployment in field tests. Therefore, we propose an experimental device for high-voltage zinc oxide surge arresters. Summary of the Invention

[0004] The purpose of this invention is to provide an experimental apparatus for a high-voltage zinc oxide surge arrester to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an experimental apparatus for a high-voltage zinc oxide surge arrester, comprising:

[0006] The first support plate and the second support plate rotatably mounted at one end thereof;

[0007] Support bolts are provided on one end of the upper surface of the second support plate to support the surge arrester;

[0008] A grounding bolt is installed on the other end of the upper surface of the second support plate for grounding;

[0009] The support base is slidably disposed inside the first support plate to raise the high voltage lead after connecting the insulating rod;

[0010] At least two support blocks are rotatably mounted on the first support plate. The inner side of each support block is provided with a limiting rod assembly for locking its position, and the lower end of the limiting rod assembly is designed to cooperate with the support base.

[0011] A limiting groove is formed between the two support blocks to limit the insulating rod, and the upper surface of the support block has a locking assembly that cooperates with the other support block.

[0012] Preferably, a mounting block is fixed on the upper surface of the first support plate, and a rotating groove that mates with the mounting block is provided on the lower inner side of the support block.

[0013] Preferably, the limiting rod assembly includes a limiting rod body and a spring. The limiting rod body is slidably disposed inside the support block, and an adjusting slider is fixed on the outer wall of the limiting rod body. The spring is sleeved on the outer side of the limiting rod body, and both ends of the spring are in contact with the adjusting slider and the support block, respectively.

[0014] Preferably, a hand grip groove is provided through the other end of the inner side of the second support plate, and the hand grip groove is "D" shaped.

[0015] Preferably, the support base includes a base plate, connecting studs, and connecting sliders. The base plate is slidably mounted on the inner side of the first support plate via connecting sliders at both ends. Connecting studs are fixed on the base plate to support the insulating rod, and the inner side of the connecting sliders is provided with insertion holes that cooperate with the limiting rod assembly.

[0016] Preferably, a first pressure rod is fixed to the top of the limiting rod assembly, a second pressure rod is fixedly connected to the lower surface of the first pressure rod, and a groove is provided on one side wall of the support base to abut against the second pressure rod.

[0017] Preferably, a locking block is provided on the other side wall of the support base opposite to the groove, and a slot with the same shape as the locking block is provided on one end face of the second support plate.

[0018] Preferably, the support block is L-shaped and the limiting groove is arc-shaped.

[0019] Preferably, the upper surface of the second support plate is provided with a wiring bolt side by side with the grounding bolt.

[0020] Preferably, multiple support bolts are arranged side by side along the short side of the second support plate.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] This invention, by incorporating a first support plate, a second support plate, support bolts, grounding bolts, a support base, and a support block, avoids the risk of traditionally haphazardly placing surge arresters, which can lead to tilting or tipping during experiments. This device facilitates the placement and fixation of surge arresters and elevates the high-voltage leads during experiments, ensuring experimental safety. It also facilitates the connection of grounding rods for grounding during experiments. By separating and clearly marking the support bolts and grounding bolts, the invention effectively avoids the hidden dangers of chaotic and unreliable grounding on-site, improving the device's effectiveness. After use, it is easy to fold and retract, reducing its size and increasing portability. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the exploded structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the limiting rod assembly structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the support structure of the present invention;

[0027] Figure 5 This is a schematic diagram illustrating the experiment conducted according to the present invention;

[0028] Figure 6 This is a schematic diagram of the folded-down state of the present invention.

[0029] In the diagram: 1. First support plate; 2. Second support plate; 3. Support bolt; 4. Grounding bolt; 5. Wiring bolt; 6. Support base; 61. Base plate; 62. Groove; 63. Connecting stud; 64. Connecting slider; 65. Locking block; 7. Mounting block; 9. Support block; 10. Limiting rod assembly; 101. Limiting rod body; 102. Adjusting slider; 103. Spring; 11. First pressure rod; 111. Second pressure rod; 12. Locking assembly; 13. Hand grip groove; 14. Rotating groove; 15. Insulating rod; 16. Connecting wire; 17. Surge arrester; 18. High voltage lead; 19. Grounding wire. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-6 The present invention provides a technical solution: an experimental apparatus for a high-voltage zinc oxide surge arrester, comprising:

[0032] First support plate 1 and second support plate 2 rotatably mounted at one end thereof;

[0033] It can be easily folded down to reduce its size when not in use by rotating the connection, making it easy to carry;

[0034] Support bolt 3 is installed at one end of the upper surface of the second support plate 2 to support the surge arrester 17;

[0035] Grounding bolt 4 is installed on the other end of the upper surface of the second support plate 2 for grounding;

[0036] This facilitates the installation and fixing of the surge arrester 17, and also allows for connection to an external grounding rod via the grounding bolt 4, thereby improving the grounding effect;

[0037] The support base 6 is slidably disposed inside the first support plate 1 to support the high voltage lead wire after connecting the insulating rod;

[0038] This facilitates the installation of the insulating rod 15, thereby increasing the height of the high-voltage lead 18 during the experiment and ensuring experimental safety.

[0039] At least two support blocks 9 are rotatably mounted on the first support plate 1. A limiting rod assembly 10 is provided on the inner side of the support block 9 to lock its position, and the lower end of the limiting rod assembly 10 is to cooperate with the support base 6.

[0040] A limiting groove is formed between two support blocks 9 to limit the insulating rod, and the upper surface of the support block 9 has a locking assembly 12 that cooperates with the other support block 9;

[0041] This facilitates further support for the relatively tall insulating rod 15, reducing the risk of the insulating rod 15 tilting or falling after supporting the high-voltage lead 18.

[0042] Preferably, a mounting block 7 is fixed on the upper surface of the first support plate 1, and a rotating groove 14 that mates with the mounting block 7 is provided at the lower inner end of the support block 9.

[0043] When not in use, the support block 9 can be rotated and folded toward the first support plate 1 to reduce the external space it occupies.

[0044] Preferably, the limiting rod assembly 10 includes a limiting rod body 101 and a spring 103. The limiting rod body 101 is slidably disposed inside the support block 9, and an adjusting slider 102 is fixed on the outer wall of the limiting rod body 101. The spring 103 is sleeved on the outer side of the limiting rod body 101, and both ends of the spring 103 are in contact with the adjusting slider 102 and the support block 9, respectively.

[0045] During experiments, the position of the support block 9 and the support seat 6 can be locked by the elastic force of the limiting rod 101 and the spring 103 to support the insulating rod 15. When not in use, the position of the support seat 6, the support block 9 and the second support plate 2 can be locked by the elastic force of the limiting rod 101 and the spring 103, which is conducive to folding and shrinking the volume and improving the portability.

[0046] Preferably, a hand grip groove 13 is provided through the other end of the inner side of the second support plate 2. The hand grip groove 13 is "D" shaped, which makes it easy to hold and carry.

[0047] Preferably, the support base 6 includes a base plate 61, connecting studs 63, and connecting sliders 64. The base plate 61 is slidably mounted on the inner side of the first support plate 1 via the connecting sliders 64 at both ends. The connecting studs 63 are fixed on the base plate 61 to support the insulating rod. The inner side of the connecting sliders 64 is provided with a socket that cooperates with the limiting rod assembly 10, so that the support base 6 can slide to the center position of the first support plate 1, thereby better reducing the tilting and falling of the support base 6 when supporting the insulating rod 15 through the first support plate 1 and improving the support effect.

[0048] Preferably, a first pressure rod 11 is fixed to the top of the limiting rod assembly 10, and a second pressure rod 111 is fixedly connected to the lower surface of the first pressure rod 11. A groove 62 that abuts against the second pressure rod 111 is provided on one side wall of the support base 6, so that the second support plate 2 and the support base 6 can be locked inside the first support plate 1 by the second pressure rod 111 when folding, thereby reducing shaking when carrying.

[0049] Preferably, a locking block 65 is provided on the other side wall of the support base 6 opposite to the groove 62, and a slot with the same shape as the locking block 65 is provided on one end face of the second support plate 2, so as to securely lock the support base 6 inside the first support plate 1, reduce bumps or damage caused by the parts coming apart during carrying, and also make the whole device more regular and easier to transport.

[0050] Preferably, the support block 9 is L-shaped and the limiting groove is arc-shaped;

[0051] This facilitates better stable support for the relatively long insulating rod 15, reducing the risk of the insulating rod 15 tilting or falling over.

[0052] Preferably, a wiring bolt 5 is provided on the upper surface of the second support plate 2, parallel to the grounding bolt 4;

[0053] The second support plate 2 is preferably made of metal so that the surge arrester 17 and the grounding bolt 4 are electrically connected. The lower end of the surge arrester 17 can also be connected to the wiring bolt 5 by the connecting wire 16, thereby better reducing the resistance value between the surge arrester 17 and the grounding bolt 4 during grounding.

[0054] Preferably, multiple support bolts 3 are arranged side by side along the short side of the second support plate 2 to facilitate the installation of surge arresters 17 of different specifications.

[0055] The working principle and usage process of this invention are as follows: In use, the surge arrester 17 is connected to the support bolt 3. The top of the surge arrester 17 is connected to the high-voltage power supply through the high-voltage lead 18. Then, the support block 9 is rotated so that the first support plate 1 is perpendicular. At this time, the limiting rod assembly 10 is inserted into the inner insertion hole of the connecting slider 64 to lock the position of the support seat 6. The bottom of the insulating rod 15 is engaged with the connecting stud 63. The high-voltage lead 18 is raised by the insulating rod 15. The ends of the two support blocks 9 are locked by the locking assembly 12. Then, the position of the insulating rod 15 is locked again by the limiting groove between the two support blocks 9 to prevent the insulating rod 15 from tilting due to wind. Then, the grounding rod is inserted into the soil to achieve grounding. At the same time, the upper end is connected to the grounding bolt 4 through the grounding wire 19. The high-voltage current is applied to the upper end of the surge arrester 17 through the high-voltage power supply to test the insulation performance and grounding effect of the surge arrester 17.

[0056] When not in use, the surge arrester 17, insulating rod 15, and grounding rod can be removed from the device. Then, rotate the support block 9 to abut against the first support plate 1, causing the support seat 6 to slide to one end of the first support plate 1. Rotate the support block 9 to retract the second support plate 2 into the inner side of the first support plate 1. At this time, under the elastic force of the spring 103, the second pressure rod 111 is driven to insert into the inner side of the groove 62. Simultaneously, the elastic force abuts against the support seat 6, causing the locking block 65 on the other side to insert into the slot, thereby locking the second support plate 2 inside the first support plate 1, forming a... Figure 6 As shown, this facilitates reducing the overall size of the device, and allows for carrying the device via the handle slot 13.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An experimental apparatus for a high-voltage zinc oxide surge arrester, characterized in that, include: The first support plate (1) and the second support plate (2) rotatably mounted on one end thereto; Support bolts (3) are provided at one end of the upper surface of the second support plate (2) to support the surge arrester; A grounding bolt (4) is installed at the other end of the upper surface of the second support plate (2) for grounding; The support base (6) is slidably disposed inside the first support plate (1) to support the high voltage lead wire after connecting the insulating rod; At least two support blocks (9) are rotatably mounted on the first support plate (1). The inner side of the support block (9) is provided with a limiting rod assembly (10) for locking its position, and the lower end of the limiting rod assembly (10) is to cooperate with the support base (6). A limiting groove is provided between the two support blocks (9) to limit the insulating rod, and the upper surface of the support block (9) has a locking assembly (12) that cooperates with the other support block (9).

2. The experimental apparatus for a high-voltage zinc oxide surge arrester according to claim 1, characterized in that: The first support plate (1) has a mounting block (7) fixed on its upper surface, and the lower inner side of the support block (9) has a rotating groove (14) that cooperates with the mounting block (7).

3. The experimental apparatus for a high-voltage zinc oxide surge arrester according to claim 1, characterized in that: The limiting rod assembly (10) includes a limiting rod body (101) and a spring (103). The limiting rod body (101) is slidably disposed inside the support block (9), and an adjusting slider (102) is fixed on the outer wall of the limiting rod body (101). The spring (103) is sleeved on the outer side of the limiting rod body (101), and both ends of the spring (103) are in contact with the adjusting slider (102) and the support block (9) respectively.

4. The experimental apparatus for a high-voltage zinc oxide surge arrester according to claim 3, characterized in that: The second support plate (2) has a hand grip groove (13) through the other end of its inner side, and the hand grip groove (13) is "D" shaped.

5. The experimental apparatus for a high-voltage zinc oxide surge arrester according to claim 1, characterized in that: The support base (6) includes a base plate (61), a connecting stud (63) and a connecting slider (64). The base plate (61) is slidably installed on the inner side of the first support plate (1) through the connecting sliders (64) at both ends. The base plate (61) is fixed with a connecting stud (63) to support the insulating rod, and the inner side of the connecting slider (64) is provided with a socket that cooperates with the limiting rod assembly (10).

6. The experimental apparatus for a high-voltage zinc oxide surge arrester according to claim 1, characterized in that: The top of the limiting rod assembly (10) is fixed with a first pressure rod (11), and a second pressure rod (111) is fixedly connected to the lower surface of the first pressure rod (11). The side wall of the support base (6) is provided with a groove (62) that abuts against the second pressure rod (111).

7. The experimental apparatus for a high-voltage zinc oxide surge arrester according to claim 6, characterized in that: The other side wall of the support base (6) is provided with a locking block (65) opposite to the groove (62), and a slot with the same shape as the locking block (65) is provided on one end face of the second support plate (2).

8. The experimental apparatus for a high-voltage zinc oxide surge arrester according to claim 1, characterized in that: The support block (9) is L-shaped, and the limiting groove is arc-shaped.

9. The experimental apparatus for a high-voltage zinc oxide surge arrester according to claim 1, characterized in that: The second support plate (2) has a wiring bolt (5) arranged side by side with the grounding bolt (4) on its upper surface.

10. The experimental apparatus for a high-voltage zinc oxide surge arrester according to claim 1, characterized in that: Multiple support bolts (3) are arranged side by side along the short side of the second support plate (2).

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