Lightning arrester large-current impact test equipment

Abstract

The utility model discloses lightning arrester large-current impact test equipment, which comprises a bottom cabinet and a countertop, and a tester is arranged at the upper end of the countertop. A protective cover is arranged at the upper end of the countertop, a positioning assembly is arranged at the position, close to the rear end of the protective cover, of the countertop, the positioning assembly is fixedly connected with the inner wall of the rear end of the protective cover, and a clamping mechanism is arranged at the front end of the positioning assembly. According to the utility model, the positioning assembly and the clamping mechanism are arranged on the countertop, so that the lightning arrester is firmly clamped and fixed, the problem that the lightning arrester in the existing detection equipment is not firmly fixed is effectively solved, the stability of the whole current test device is remarkably improved, and the working efficiency is improved. Therefore, the accuracy and the reliability of the large-current impact test of the lightning arrester are ensured. The lightning arrester is clamped by the clamping mechanism, so that the weight of the lightning arrester can be uniformly distributed, the direct pressure on the detection head is reduced, the situation that the detection head is damaged due to excessive pressure is effectively prevented, and the integrity and long-term usability of test equipment are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning arrester testing, in particular to a lightning arrester high current impact testing device. Background Art

[0002] With the rapid advancement of power technology, HVDC transmission, with its superior long-distance and high-capacity transmission capabilities, has demonstrated advantages in power transmission that are difficult to match with AC transmission. As a key component in ensuring the safe and stable operation of power systems, lightning arresters play an indispensable role in HVDC transmission lines. Their performance and stability directly impact the safety and efficiency of the entire power grid.

[0003] For the performance verification of lightning arresters, the action load test before leaving the factory is particularly critical. This link particularly emphasizes the importance of implementing impulse testing on lightning arresters under power frequency voltage conditions. However, in the current evaluation process of lightning arrester high current impulse performance, the detection equipment used generally faces a significant challenge: the lack of an effective lightning arrester fixing mechanism not only weakens the overall stability of the test device, but also inevitably affects the accuracy and reliability of the current test results. Moreover, due to the large mass of the lightning arrester itself, if it is not properly fixed during the test, it is very easy to apply excessive pressure to the detection head of the detection equipment, causing damage to the detection head, and thus seriously interfering with the accurate measurement of the high current impulse test. In addition, if the lightning arrester fails to pass the performance test during the test process, its possible shattering will be accompanied by fragments flying everywhere, which not only destroys the cleanliness and safety of the test environment, but also poses a potential threat to the safety of the test personnel and increases the operational risk. Summary of the Invention

[0004] The purpose of the utility model is to provide a lightning arrester high current impulse test device to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A lightning arrester high current impact test device includes a base cabinet, wherein a table panel is provided at the upper end of the base cabinet; a tester is provided at the upper end of the table panel, wherein a lightning arrester is provided above the tester; a protective cover is provided at the upper end of the table panel, wherein an electric glass door is provided at the front end of the protective cover, and a transparent observation window is provided at the side of the protective cover; a positioning assembly is provided on the table panel near the rear end of the protective cover, wherein the positioning assembly is fixedly connected to the inner wall of the rear end of the protective cover; a clamping mechanism is provided at the front end of the positioning assembly, wherein the clamping mechanism is adapted to the lightning arrester and clamps the lightning arrester.

[0007] Preferably, the arrester has an upper electrode lead-in piece at its upper end, wherein an upper insulating cylinder is provided on the outer side of the upper electrode lead-in piece; the arrester has a lower electrode lead-out piece at its lower end, wherein a lower insulating cylinder is provided on the outer side of the lower electrode lead-out piece.

[0008] Preferably, a positioning groove is provided at the top of the tester, wherein a detection head is provided at the bottom of the positioning groove.

[0009] Preferably, the lower insulating cylinder is arranged in the positioning groove, wherein the lower end of the lower electrode lead-out piece abuts against the detection head.

[0010] Preferably, the positioning assembly includes a first fixed support and a second fixed support, wherein the first fixed support and the second fixed support are respectively arranged vertically, and the legs of the first fixed support and the second fixed support are respectively fixedly connected to the rear end inner wall of the protective cover; a movable plate is provided between the first fixed support and the second fixed support, wherein the front end of the movable plate is fixedly connected to the clamping mechanism.

[0011] Preferably, a linear screw slide is provided on the first fixed support, wherein a slide is provided on the linear screw slide; a linear guide rail is provided on the second fixed support, wherein a guide rail slider is slidably connected to the linear guide rail; one end of the movable plate is fixedly connected to the slide, wherein the other end of the movable plate is fixedly connected to the guide rail slider.

[0012] Preferably, the clamping mechanism includes a base, wherein the base is fixedly connected to the movable plate; bearing seats are respectively provided at both ends of the base, wherein a bidirectional screw rod is provided between the bearing seats at both ends, and the two ends of the bidirectional screw rod are respectively rotatably connected to the bearing seats; a forward and reverse motor is provided at one end of the base, wherein the rotating shaft of the forward and reverse motor is fixedly connected to the top end of the bidirectional screw rod through a coupling.

[0013] Preferably, the outer walls at both ends of the bidirectional screw are respectively provided with clamping blocks, wherein the clamping blocks are provided with threaded holes that are screwed together with the bidirectional screw; one end of the clamping block is provided with an insulating clamp, wherein the inner side of the insulating clamp is provided with an arc-shaped clamping surface.

[0014] Preferably, the insulating clamps are arranged on both sides of the upper insulating cylinder, wherein the arc-shaped clamping surfaces of the insulating clamps are adapted to the outer wall of the upper insulating cylinder.

[0015] Preferably, a guide slot is provided on a side of the clamping block close to the base, and a guide bar adapted to the guide slot is provided on the base.

[0016] Compared with the existing technology, the beneficial effects of the present invention are as follows: the present invention realizes the firm clamping and fixation of the lightning arrester by arranging a positioning component and a clamping mechanism on the table panel. This design effectively solves the problem of loose fixation of the lightning arrester in the existing detection equipment, and significantly improves the stability of the entire current testing device, thereby ensuring the accuracy and reliability of the large current impact test of the lightning arrester; the lightning arrester is clamped by the clamping mechanism, which can evenly distribute the weight of the lightning arrester, reduce the direct pressure on the detection head, effectively prevent the detection head from being damaged due to excessive pressure, and ensure the integrity and long-term usability of the test equipment; the design of the protective cover not only provides a closed environment for the test process and reduces external interference, but also facilitates the test personnel to safely observe the test conditions through the arrangement of electric glass doors and transparent observation windows; at the same time, the stable lightning arrester fixing mechanism also reduces the risk of lightning arrester breakage and flying fragments during the test, thereby ensuring the safety of the test personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the interior of the protective cover of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the connection between the positioning assembly and the clamping mechanism of the utility model;

[0020] Figure 4 It is a structural diagram of the clamping mechanism of the utility model;

[0021] Figure 5 It is a structural diagram of the utility model lightning arrester.

[0022] Among them: 1. Base cabinet; 2. Table panel; 3. Tester; 4. Lightning arrester; 5. Protective cover; 6. Electric glass door; 7. Positioning assembly; 701. First fixed support; 702. Second fixed support; 703. Movable plate; 704. Linear screw slide; 705. Slide; 706. Linear guide rail; 707. Guide rail slider; 8. Clamping mechanism; 801. Base; 802. Bearing seat; 803. Bidirectional screw; 804. Forward and reverse motor; 805. Clamping block; 806. Threaded hole; 807. Insulating chuck; 808. Arc-shaped clamping surface; 9. Upper electrode lead-in piece; 10. Upper insulating cylinder; 11. Lower electrode lead-out piece; 12. Lower insulating cylinder; 13. Positioning groove; 14. Guide slide; 15. Guide bar; 16. Transparent observation window. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below with reference to the accompanying drawings.

[0024] Please refer to Figures 1 to 5 To achieve the above objectives, the present invention provides the following technical solutions:

[0025] A lightning arrester high current impulse test equipment includes a base cabinet 1, wherein the upper end of the base cabinet 1 is provided with a table panel 2; the upper end of the table panel 2 is provided with a tester 3, wherein a lightning arrester 4 is provided above the tester 3; the upper end of the table panel 2 is provided with a protective cover 5, wherein the front end of the protective cover 5 is provided with an electric glass door 6, and the side of the protective cover 5 is provided with a transparent observation window 16; the table panel 2 is provided with a positioning component 7 near the rear end of the protective cover 5, wherein the positioning component 7 is fixedly connected to the inner wall of the rear end of the protective cover 5; the front end of the positioning component 7 is provided with a clamping mechanism 8, wherein the clamping mechanism 8 is adapted to the lightning arrester 4 and clamps the lightning arrester 4.

[0026] A protective cover 5 is installed on the upper end of the table panel 2, wherein the protective cover 5 should fit tightly against the edge of the table panel 2 to form a closed space. An electric glass door 6 is installed at the front end of the protective cover 5, and ensure that it can be opened and closed smoothly and has good sealing. At the same time, a transparent observation window 16 is opened on the side of the protective cover 5 to facilitate observation of the state of the lightning arrester 4 during the test. A positioning assembly 7 is installed at a position of the table panel 2 near the rear end of the protective cover 5, and ensure that the positioning assembly 7 is firmly fixed to the inner wall of the rear end of the protective cover 5. The design of the positioning assembly 7 should take into account the size and shape of the lightning arrester 4 for subsequent clamping and fixation.

[0027] During the test, the lightning arrester 4 to be tested is placed above the tester 3 to ensure that the position of the lightning arrester 4 corresponds to the test area of ​​the tester 3; the upper electrode lead-in piece 9 is installed at the upper end of the lightning arrester 4, and the upper insulating tube 10 is sleeved on the outside thereof to protect the electrode and the test environment; similarly, the lower electrode lead-out piece 11 is installed at the lower end of the lightning arrester 4, and the upper and lower insulating tubes 12 are sleeved on the outside thereof, wherein the lower insulating tube 12 is inserted into the positioning groove 13 at the top of the tester 3 so as to contact the detection head; according to the size and shape of the lightning arrester 4, the clamping mechanism 8 at the front end of the positioning assembly 7 is adjusted so that the insulating clamp 807 on the clamping mechanism 8 gradually approaches the lightning arrester The upper insulating tube 10 of the arrester 4; when the arc-shaped clamping surface 808 of the insulating clamp 807 is tightly fitted with the outer wall of the upper insulating tube 10; at this time, the clamping mechanism 8 has firmly clamped and fixed the lightning arrester 4; after confirming that the lightning arrester 4 has been clamped and fixed, close the electric glass door 6 at the front end of the protective cover 5 to ensure that the test environment is closed; set the test parameters (such as current size, impact time, etc.) through the control panel of the tester 3, and start the tester 3. The tester 3 will apply a large current impact to the lightning arrester 4 according to the set parameters; during the test, the tester can observe the status changes of the lightning arrester 4 through the transparent observation window on the side of the protective cover 5. At the same time, the tester 3 will record and display the test data in real time for subsequent analysis; when the test reaches the predetermined time or meets other stop conditions, the tester 3 will automatically stop working. At this time, the tester should wait for a while to allow the lightning arrester 4 to cool down sufficiently. After confirming that the lightning arrester 4 has cooled down, open the electric glass door 6 at the front end of the protective cover 5, and remove the lightning arrester 4 from the top of the tester 3. At the same time, check whether the lightning arrester 4 is damaged or abnormal for subsequent processing or improvement. Through the above steps, the lightning arrester 4 high current impact test equipment can efficiently and accurately complete the performance test of the lightning arrester 4.

[0028] Please refer to Figure 3 、 Figure 5 As an embodiment of the present utility model, the upper end of the lightning arrester 4 is provided with an upper electrode lead-in piece 9, wherein an upper insulating tube 10 is provided on the outer side of the upper electrode lead-in piece 9; the lower end of the lightning arrester 4 is provided with a lower electrode lead-out piece 11, wherein a lower insulating tube 12 is provided on the outer side of the lower electrode lead-out piece 11; a positioning groove 13 is provided at the top of the tester 3, wherein a detection head (not shown) is provided at the bottom of the positioning groove 13; the lower insulating tube 12 is arranged in the positioning groove 13, wherein the lower end of the lower electrode lead-out piece 11 abuts against the detection head.

[0029] In the above scheme, an upper electrode lead-in 9 is provided at the upper end of the lightning arrester 4, wherein the upper electrode lead-in 9 is used to safely introduce external high-voltage current or signal into the interior of the lightning arrester 4 for testing. The design of the upper electrode lead-in 9 must ensure good electrical connection and mechanical strength to withstand high voltage and high current during the test process; in order to protect the upper electrode lead-in 9 and the electrical components around it from environmental interference and accidental touch, an upper insulating tube 10 is provided on the outside of the upper electrode lead-in 9, wherein the upper insulating tube 10 is made of a material with high insulation performance, which can effectively isolate the electrical part from the external environment. environment to ensure the safety of the test; a lower electrode lead-out piece 11 is provided at the lower end of the arrester 4, and the lower electrode lead-out piece 11 is used to lead the current or signal inside the arrester 4 to the external detection equipment, wherein the lower electrode lead-out piece 11 also needs to have good electrical connection and mechanical strength to ensure the accuracy and reliability of the test data; similar to the upper insulating cylinder 10, a lower insulating cylinder 12 is provided on the outside of the lower electrode lead-out piece 11, wherein the main function of the lower insulating cylinder 12 is to protect the lower electrode lead-out piece 11 and the electrical components around it, and prevent safety problems such as short circuit or leakage caused by external factors.

[0030] Furthermore, a positioning groove 13 is provided at the top of the tester 3, and the shape and size of the positioning groove 13 match the lower insulating tube 12; before the test, the lower insulating tube 12 is accurately inserted into the positioning groove 13 to ensure that the lower electrode lead-out piece 11 of the lightning arrester 4 and the detection head of the tester 3 maintain the correct relative position; a detection head is provided at the bottom of the positioning groove 13, which is a key component of the tester 3 for receiving and measuring the output current or signal of the lightning arrester 4. The design of the detection head must meet the requirements of high precision and high sensitivity in order to accurately reflect the performance of the lightning arrester 4 during the test; when the lower insulating tube 12 is fully inserted into the positioning groove 13, the lower end of the lower electrode lead-out piece 11 will be tightly abutted against the detection head. This abutment method ensures the stability and reliability of the electrical connection, so that the current or signal generated during the test can be smoothly transmitted to the detection head for measurement and analysis.

[0031] See also Figure 3 As an embodiment of the present utility model, the positioning assembly 7 includes a first fixed support 701 and a second fixed support 702, wherein the first fixed support 701 and the second fixed support 702 are respectively arranged vertically, and the supporting feet of the first fixed support 701 and the second fixed support 702 are respectively fixedly connected to the inner wall of the rear end of the protective cover 5; a movable plate 703 is provided between the first fixed support 701 and the second fixed support 702, wherein the front end of the movable plate 703 is fixedly connected to the clamping mechanism 8.

[0032] In the above-described scheme, the first fixed support 701 and the second fixed support 702 are vertically installed on the inner wall of the protective cover 5, wherein the supporting feet of the first fixed support 701 and the second fixed support 702 are respectively fixedly connected to the rear end inner wall of the protective cover 5, thereby enhancing the overall stability and rigidity; the movable plate 703 is arranged between the first fixed support 701 and the second fixed support 702, forming a movable support platform, wherein the front end of the movable plate 703 is fixedly connected to the clamping mechanism 8, and this connection method enables the clamping mechanism 8 to move with the movement of the movable plate 703; the main function of the movable plate 703 is to provide a stable support base for the clamping mechanism 8 and ensure that it can remain stable and accurate during movement. By adjusting the position of the movable plate 703, the lightning arrester 4 can be clamped and positioned at different positions.

[0033] See also Figure 3 As an embodiment of the present utility model, a linear screw slide 704 is provided on the first fixed support 701, wherein the linear screw slide 704 is provided with a slide 705; a linear guide rail 706 is provided on the second fixed support 702, wherein a guide rail slider 707 is slidably connected to the linear guide rail 706; one end of the movable plate 703 is fixedly connected to the slide 705, wherein the other end of the movable plate 703 is fixedly connected to the guide rail slider 707.

[0034] In the above scheme, a linear screw slide 704 is installed on the first fixed support 701. The linear screw slide 704 is a precise mechanical transmission device, wherein a slide 705 is provided on the linear screw slide 704. The slide 705 and the screw are tightly matched by threads or other means to ensure that the slide 705 can move in a straight line as the screw rotates; a linear guide rail 706 is installed on the second fixed support 702. The linear guide rail 706 provides a smooth sliding track for the guide rail slider 707 to ensure that it is smooth during movement. Stability and precision; the guide rail slider 707 is in contact with the guide rail through balls, rollers or sliding surfaces, which reduces friction resistance and improves sliding efficiency; one end of the movable plate 703 is fixedly connected to the slide 705 on the linear screw slide 704, which means that when the slide 705 moves under the drive of the screw, the movable plate 703 will also move accordingly; the other end of the movable plate 703 is fixedly connected to the guide rail slider 707 on the linear guide rail 706. This double-end connection method ensures the stability and balance of the movable plate 703 during movement.

[0035] See also Figure 4As an embodiment of the present utility model, the clamping mechanism 8 includes a base 801, wherein the base 801 is fixedly connected to the movable plate 703; bearing seats 802 are respectively provided at both ends of the base 801, wherein a bidirectional screw rod 803 is provided between the bearing seats 802 at both ends, and the two ends of the bidirectional screw rod 803 are respectively rotatably connected to the bearing seats 802; a forward and reverse motor 804 is provided at one end of the base 801, wherein the rotating shaft of the forward and reverse motor 804 is fixedly connected to the top of the bidirectional screw rod 803 through a coupling.

[0036] In the above-mentioned scheme, the base 801 of the clamping mechanism 8 is fixedly connected to the movable plate 703. This fixed connection ensures that the clamping mechanism 8 can remain stable during the movement and clamping process and will not loosen due to vibration or external force; bearing seats 802 are respectively provided at both ends of the base 801. These bearing seats 802 provide stable support for the bidirectional screw rod 803 and allow the screw rod to rotate freely inside the bearing. This connection method allows the screw rod to rotate smoothly when driven and converts rotational motion into linear motion; the bidirectional screw rod 803 has a special thread design and can rotate in both forward and reverse directions, thereby driving the clamping block 805 that cooperates with it to move; a forward and reverse motor 804 is provided at one end of the base 801, wherein the forward and reverse motor 804 is the power source of the clamping mechanism 8, responsible for driving the bidirectional screw rod 803 to rotate; the rotating shaft of the forward and reverse motor 804 is fixedly connected to the top of the bidirectional screw rod 803 through a coupling, and this connection method ensures that the rotating shaft of the forward and reverse motor 804 is fixedly connected to the bidirectional screw rod 803 The synchronous rotation between the screw rods 803, that is, the rotation of the forward and reverse motors 804 can be directly transmitted to the bidirectional screw rod 803 and drive it to rotate; when the lightning arrester 4 needs to be clamped, the forward and reverse motors 804 start and drive the bidirectional screw rod 803 to rotate forward; as the bidirectional screw rod 803 rotates, the clamping block 805 cooperating therewith will move toward the center along the thread direction of the bidirectional screw rod 803, thereby clamping the lightning arrester 4; when the lightning arrester 4 needs to be loosened, the forward and reverse motors 804 reverse and drive the bidirectional screw rod 803 to rotate in the opposite direction; at this time, the clamping block 805 will move outward along the thread direction of the bidirectional screw rod 803, thereby releasing the clamping force on the lightning arrester 4; by controlling the start, stop and rotation direction of the forward and reverse motors 804, precise control of the clamping mechanism 8 can be achieved. This control method enables the clamping mechanism 8 to quickly clamp and release according to the test requirements, which not only improves the efficiency and accuracy of the test, but also ensures the stability and safety of the lightning arrester 4 during the test.

[0037] See also Figure 4As an embodiment of the present invention, a clamping block 805 is respectively provided on the outer walls of both ends of the bidirectional screw rod 803, wherein the clamping block 805 is provided with a threaded hole 806 that is screwed into the bidirectional screw rod 803; an insulating clamp 807 is provided at one end of the clamping block 805, wherein an arc-shaped clamping surface 808 is provided on the inner side of the insulating clamp 807; the insulating clamp 807 is arranged on both sides of the upper insulating tube 10, wherein the arc-shaped clamping surface 808 of the insulating clamp 807 is adapted to the outer wall of the upper insulating tube 10.

[0038] In the above-mentioned scheme, the outer walls of both ends of the bidirectional screw rod 803 are respectively provided with clamping blocks 805, wherein the clamping blocks 805 are provided with threaded holes 806 that match the bidirectional screw rod 803. This design allows the clamping blocks 805 to be tightly connected to the bidirectional screw rod 803 through threads and move along its axial direction as the screw rod rotates; when the bidirectional screw rod 803 rotates under the drive of the forward and reverse motor 804, the clamping blocks 805 at both ends will move along its axial direction according to the rotation direction of the bidirectional screw rod 803. This movement mechanism is the key to realizing the clamping and loosening action of the lightning arrester 4; one end of the clamping block 805 is provided with an insulating clamp 807, which is made of insulating rubber material with good insulating properties and flexibility. The main function of the insulating clamp 807 is to protect the upper insulating cylinder 10 of the lightning arrester 4 from damage that may be caused by direct metal contact. And ensure electrical safety during the clamping process; an arc-shaped clamping surface 808 is provided on the inner side of the insulating clamp 807, wherein the shape of the arc-shaped clamping surface 808 is adapted to the outer wall of the upper insulating tube 10, and can fit tightly and clamp the upper insulating tube 10. This design ensures that the clamping mechanism 8 can provide a stable and uniform clamping force when clamping the lightning arrester 4; the insulating clamp 807 is arranged on both sides of the upper insulating tube 10 of the lightning arrester 4. This layout enables the clamping mechanism 8 to clamp the upper insulating tube 10 from both sides at the same time, thereby providing a more stable clamping effect; when the bidirectional screw 803 rotates and drives the clamping block 805 to move, the insulating clamp 807 will move toward the center and clamp the outer wall of the upper insulating tube 10, wherein the close fit of the arc-shaped clamping surface 808 to the outer wall of the upper insulating tube 10 ensures the effective transmission of the clamping force, thereby achieving a firm clamping of the lightning arrester 4.

[0039] See also Figure 4 As an embodiment of the present invention, a guide slot 14 is provided on the clamping block 805 near the base 801 , wherein a guide bar 15 adapted to the guide slot 14 is provided on the base 801 .

[0040] In the above-mentioned scheme, a guide slot 14 is provided on the side of the clamping block 805 close to the base 801, wherein the guide slot 14 is usually designed to be linear or arc-shaped, and the specific shape depends on the design requirements and movement trajectory of the clamping mechanism 8; the main function of the guide slot 14 is to limit the lateral deviation of the clamping block 805 during movement, ensuring that it can move smoothly along the predetermined path; a guide bar 15 is provided on the base 801 to match the guide slot 14, and the guide bar 15 is usually fixed at an appropriate position of the base 801 so as to form a close fit with the guide slot 14 on the clamping block 805; the main function of the guide bar 15 is to serve as a clamping block 805 The movable guiding device, when the clamping block 805 moves under the drive of the bidirectional screw 803, the guide groove 14 thereon will fit tightly with the guide bar 15 on the base 801, thereby limiting the lateral movement of the clamping block 805 and ensuring that it can slide smoothly along the direction of the guide bar 15, effectively limiting the lateral offset and shaking of the clamping block 805 during movement, and ensuring the accuracy and stability of the clamping action; through the cooperation of the guide groove 14 and the guide bar 15, the clamping mechanism 8 can achieve higher precision and stability when clamping the lightning arrester 4, which helps to reduce errors and uncertainty factors in the test process and improve the reliability of the test results.

[0041] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A lightning arrester high current impulse test equipment, comprising a base cabinet (1), wherein a table panel (2) is provided at the upper end of the base cabinet (1); characterized in that: A tester (3) is provided at the upper end of the table panel (2), wherein a lightning arrester (4) is provided above the tester (3); a protective cover (5) is provided at the upper end of the table panel (2), wherein an electric glass door (6) is provided at the front end of the protective cover (5), and a transparent observation window (16) is provided at the side of the protective cover (5); a positioning assembly (7) is provided near the rear end of the protective cover (5) of the table panel (2), wherein the positioning assembly (7) is fixedly connected to the inner wall of the rear end of the protective cover (5); a clamping mechanism (8) is provided at the front end of the positioning assembly (7), wherein the clamping mechanism (8) is adapted to the lightning arrester (4) and clamps and fixes the lightning arrester (4).

2. The arrester high current impulse test equipment according to claim 1, characterized in that: The upper end of the lightning arrester (4) is provided with an upper electrode lead-in piece (9), wherein an upper insulating tube (10) is provided on the outer side of the upper electrode lead-in piece (9); the lower end of the lightning arrester (4) is provided with a lower electrode lead-out piece (11), wherein a lower insulating tube (12) is provided on the outer side of the lower electrode lead-out piece (11).

3. The arrester high current impulse test equipment according to claim 1, characterized in that: A positioning groove (13) is provided at the top of the tester (3), wherein a detection head is provided at the bottom of the positioning groove (13).

4. The arrester high current impulse test equipment according to claim 2, characterized in that: The lower insulating cylinder (12) is arranged in the positioning groove (13), wherein the lower end of the lower electrode lead-out piece (11) abuts against the detection head.

5. The arrester high current impulse test equipment according to claim 1, characterized in that: The positioning assembly (7) comprises a first fixed support (701) and a second fixed support (702), wherein the first fixed support (701) and the second fixed support (702) are respectively arranged vertically, and the legs of the first fixed support (701) and the second fixed support (702) are respectively fixedly connected to the inner wall of the rear end of the protective cover (5); a movable plate (703) is provided between the first fixed support (701) and the second fixed support (702), wherein the front end of the movable plate (703) is fixedly connected to the clamping mechanism (8).

6. The arrester high current impulse test equipment according to claim 5, characterized in that: A linear screw slide (704) is provided on the first fixed support (701), wherein a slide seat (705) is provided on the linear screw slide (704); a linear guide rail (706) is provided on the second fixed support (702), wherein a guide rail slider (707) is slidably connected to the linear guide rail (706); one end of the movable plate (703) is fixedly connected to the slide seat (705), wherein the other end of the movable plate (703) is fixedly connected to the guide rail slider (707).

7. The arrester high current impulse test equipment according to claim 5, characterized in that: The clamping mechanism (8) includes a base (801), wherein the base (801) is fixedly connected to the movable plate (703); bearing seats (802) are respectively provided at both ends of the base (801), wherein a bidirectional screw rod (803) is provided between the bearing seats (802) at both ends, and the two ends of the bidirectional screw rod (803) are respectively rotatably connected to the bearing seats (802); a forward and reverse motor (804) is provided at one end of the base (801), wherein the rotating shaft of the forward and reverse motor (804) is fixedly connected to the top end of the bidirectional screw rod (803) through a coupling.

8. The arrester high current impulse test equipment according to claim 7, characterized in that: The outer walls of both ends of the bidirectional screw rod (803) are respectively provided with clamping blocks (805), wherein the clamping blocks (805) are provided with threaded holes (806) that are screwed together with the bidirectional screw rod (803); an insulating clamping head (807) is provided at one end of the clamping block (805), wherein an arc-shaped clamping surface (808) is provided on the inner side of the insulating clamping head (807).

9. The arrester high current impulse test equipment according to claim 7, characterized in that: The insulating clamps (807) are arranged on both sides of the upper insulating tube (10), wherein the arc-shaped clamping surface (808) of the insulating clamps (807) is adapted to the outer wall of the upper insulating tube (10).

10. The arrester high current impulse test equipment according to claim 7, characterized in that: The clamping block (805) is provided with a guide slot (14) on one side close to the base (801), wherein the base (801) is provided with a guide bar (15) adapted to the guide slot (14).

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