Test device for surge arresters

Abstract

The utility model discloses a kind of testing devices for lightning arrester, it is related to lightning arrester field, specifically for a kind of testing device for lightning arrester, including breakdown voltage tester body, the inside of the body is equipped with fixing frame, positioning assembly for fixing lightning arrester is equipped on the fixing frame, the positioning assembly includes the fixing seat and locating seat mounted on fixing frame, locating ring is respectively equipped on the fixing seat and locating seat, lifting assembly for adjusting locating seat height is equipped on the fixing frame, the utility model solves the lightning arrester of existing lightning arrester when being placed, lightning arrester to be tested is placed on first support plate and second support plate, lightning arrester cannot be fixed, if the loosening of lightning arrester appears in testing process, it will easily cause security risk, and current connection relies on the problem of the conductive performance of first support plate and second support plate.

Description

Technical Field

[0001] This utility model relates to the field of surge arresters, specifically a testing device for surge arresters. Background Technology

[0002] A surge arrester (also known as a lightning arrester or surge protector) is a device used to protect power systems and electrical equipment from damage caused by lightning overvoltage or operational overvoltage. It limits the voltage that equipment can withstand by introducing overvoltage to the ground, thereby preventing insulation breakdown or equipment damage.

[0003] Prior art document CN108169519B discloses a surge arrester test bracket. The surge arrester test bracket includes a base, a first support plate, and a second support plate. A first end of the first support plate is fixed to the base, and a second end is adapted to support the surge arrester. The first support plate has a first terminal block adapted to connect to the test clip of a surge arrester calibrator. The second support plate is arranged parallel to the first support plate, with its first end connected to the base. The second support plate can rotate around the connection point between its first end and the base, and its second end is adapted to support the surge arrester. The second support plate has a second terminal block adapted to connect to another test clip of the surge arrester calibrator. This design effectively secures the surge arrester under test, making the test safer and the test data more accurate. Furthermore, once the test clip is fixed, repeated testing is possible without repeated wiring and disconnection, reducing the workload of operators, saving time, and improving work efficiency.

[0004] In this comparative document, when placing the surge arrester, the surge arrester to be tested is placed on the first support plate and the second support plate. The surge arrester cannot be fixed. If the surge arrester becomes loose during the test, it may easily cause safety hazards. Moreover, the current connection depends on the conductivity of the first support plate and the second support plate.

[0005] Therefore, a new type of testing device for surge arresters needs to be designed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a testing device for surge arresters to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a testing device for surge arresters, comprising a breakdown voltage tester body, a fixing frame inside the body, a positioning component for fixing the surge arrester on the fixing frame, the positioning component comprising a fixing seat and a positioning seat mounted on the fixing frame, a positioning ring respectively provided on the fixing seat and the positioning seat, and a lifting component for adjusting the height of the positioning seat on the fixing frame.

[0008] Preferably, the lifting assembly includes a lifting slot formed on a fixed frame, a slider is provided on the lifting slot, and a driving assembly is provided on the fixed frame.

[0009] Preferably, the drive assembly includes a screw mounted on a fixed frame, and the slider has a screw groove that mates with the screw.

[0010] Preferably, the top of the screw is provided with an adjustment disc, and the fixing frame is provided with a locking component for fixing the adjustment disc.

[0011] Preferably, the locking assembly includes multiple sockets formed on the fixing frame, and the adjusting plate is provided with a plug that mates with the sockets.

[0012] Preferably, the positioning ring has a sleeve inside that mates with the end of the surge arrester.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this invention, by setting a fixed seat and a positioning seat, the positioning seat can be raised and lowered, and the surge arrester to be tested can be placed between the fixed seat and the positioning seat. The surge arrester to be tested can be fixed by simply rotating the screw, which makes the installation relatively convenient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is the left view of the present invention.

[0017] Figure 3 This utility model Figure 2 A three-dimensional cross-sectional view of point AA in the middle.

[0018] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0019] Figure 5 This utility model Figure 4 Enlarged view of point B in the middle.

[0020] In the diagram: 1. Body; 2. Fixing frame; 3. Fixing base; 4. Positioning base; 5. Positioning ring; 6. Lifting groove; 7. Sliding block; 8. Screw; 9. Screw groove; 10. Adjusting disc; 11. Insertion hole; 12. Insert rod; 13. Sleeve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] All electronic components in this application are controlled by an external controller.

[0023] Example 1

[0024] Please refer to Figure 1-5 As shown, this utility model provides a testing device for surge arresters, including a breakdown voltage tester body 1. The body 1 has a fixed frame 2 inside, and the fixed frame 2 has a positioning component for fixing the surge arrester. The positioning component includes a fixed seat 3 and a positioning seat 4 installed on the fixed frame 2. The fixed seat 3 and the positioning seat 4 are respectively provided with positioning rings 5. The fixed frame 2 is provided with a lifting component for adjusting the height of the positioning seat 4. The lifting component includes a lifting groove 6 opened on the fixed frame 2, and a slider 7 is provided on the lifting groove 6. The fixed frame 2 is provided with a driving component.

[0025] The main body 1 is a common breakdown voltage tester on the market. The mounting bracket 2 is installed inside the main body 1. The mounting base 3 is located at the bottom of the mounting bracket 2. The positioning base 4 is located in the upper middle part of the mounting bracket 2. The positioning ring 5 is located in the middle of the mounting base 3 and the positioning base 4 respectively. The lifting groove 6 is opened on the mounting bracket 2. The slider 7 is slidably connected in the lifting groove 6. The slider 7 is fixedly connected to the positioning base 4. The lifting of the slider 7 can drive the positioning base 4 to lift, which facilitates the fixing of the surge arrester.

[0026] Specifically, the drive assembly includes a screw 8 mounted on the fixed frame 2, and a screw groove 9 on the slider 7 that cooperates with the screw 8. The screw 8 is rotatably connected to the fixed frame 2, and the screw groove 9 is opened on the slider 7. The screw 8 and the slider 7 are screwed together. With this configuration, the positioning seat 4 can be raised and lowered simply by rotating the screw 8, which facilitates the fixing of the surge arrester.

[0027] The screw 8 has an adjusting plate 10 at its top, and the fixing frame 2 has a locking assembly for fixing the adjusting plate 10. The locking assembly includes multiple insertion holes 11 on the fixing frame 2. The adjusting plate 10 has a rod 12 that cooperates with the insertion holes 11. The adjusting plate 10 is fixed to the screw 8, the insertion holes 11 are on the fixing frame 2, and the insertion holes 11 are slidably connected to the rod 12. The rod 12 can be inserted into the insertion hole 11. When the positioning seat 4 is adjusted to the appropriate position, the rod 12 can be inserted into the insertion hole 11 to fix the adjusting plate 10 and prevent loosening during the surge arrester test.

[0028] Based on the above embodiments, specifically, the positioning ring 5 is provided with a sleeve 13 that cooperates with the end of the surge arrester. The sleeve 13 is fixed in the positioning ring 5. The inside of the sleeve 13 is a bucket shape that is adapted to the end of the surge arrester, which facilitates the fixing of the surge arrester. More specifically, the sleeve 13 is connected to a power terminal. When the surge arrester is fixed, the current can be controlled by a switch, which makes testing more convenient.

[0029] Working principle: When in use, first move the positioning seat 4 upward, then place the surge arrester to be tested on the sleeve 13 on the fixed seat 3, then rotate the adjusting plate 10 to move the positioning seat 4 downward until the sleeve 13 on the positioning seat 4 presses down on the top of the surge arrester. When the positioning seat 4 moves to the appropriate height, use the insertion rod 12 to insert into the insertion hole 11 to fix the adjusting plate 10. After fixing, the surge arrester can be tested.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A testing device for surge arresters, characterized in that, The device includes a breakdown voltage tester body (1), and a fixing frame (2) is provided inside the body (1). The fixing frame (2) is provided with a positioning component for fixing the surge arrester. The positioning component includes a fixed seat (3) and a positioning seat (4) mounted on a fixed frame (2), and the fixed seat (3) and the positioning seat (4) are respectively provided with positioning rings (5); The fixed frame (2) is provided with a lifting component for adjusting the height of the positioning seat (4); The lifting assembly includes a lifting groove (6) formed on a fixed frame (2), a slider (7) is provided on the lifting groove (6), and a driving assembly is provided on the fixed frame (2); The drive assembly includes a screw (8) mounted on a fixed frame (2), and the slider (7) is provided with a screw groove (9) that cooperates with the screw (8). The top of the screw (8) is provided with an adjustment plate (10), and the fixing frame (2) is provided with a locking component for fixing the adjustment plate (10); The locking assembly includes multiple sockets (11) on the fixing frame (2), and the adjusting plate (10) is provided with a plug (12) that cooperates with the sockets (11). The positioning ring (5) has a sleeve (13) inside that cooperates with the end of the surge arrester.

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