A current monitoring device for a lightning arrester resistor disc

Abstract

The utility model provides a kind of current monitoring equipment for lightning arrester resistance disc, belong to monitoring field, comprising: lightning arrester main body, the bottom end of lightning arrester main body is set in the middle of mounting bracket top, the bottom of lightning arrester main body is connected by wire with the voltage monitor of monitoring box inner wall bottom, monitoring box bottom is provided with building base layer, the both sides of monitoring box are each equipped with fender.The utility model: the temperature of several high-strength insulation foam boards of tensile skeleton inner wall insulates monitoring box inner wall, several reinforcing ribs on the surface of high-strength insulation foam board cooperate with the tensile skeleton of tenacity to facilitate increasing cold resistance insulation structure strength while improving the protection of voltage monitor inside monitoring box, and the wire of voltage monitor top is inserted into the inner wall of cold resistance sleeve, to facilitate further cold protection to monitoring structure, improve the cold resistance of lightning arrester resistance disc current monitoring equipment in extremely cold environment.

Description

Technical Field

[0001] This utility model relates to the field of monitoring, specifically to a current monitoring device for surge arrester resistor elements. Background Technology

[0002] Current monitoring equipment for surge arrester resistor elements determines the operating status of the surge arrester by monitoring the current flowing through the resistor element. Its core principle lies in utilizing the nonlinear characteristics of the resistor element under different voltages. Normal operating state: Under normal operating voltage, the surge arrester resistor element exhibits high resistance, with only a few hundred microamps of current flowing through it. At this time, the equipment does not operate. Overvoltage event: When an overvoltage occurs, the resistor element rapidly reduces its resistance, allowing a large current to flow, dissipating the overvoltage energy into the ground, and limiting the overvoltage amplitude. Current monitoring: The equipment determines whether current is flowing by monitoring the voltage drop across the resistor element, thereby determining whether the surge arrester has operated, thus achieving the purpose of current calculation. It is suitable for monitoring large currents during lightning strikes. However, existing monitoring equipment has the following shortcomings in practical use: Current current monitoring equipment for surge arrester resistor elements has poor protection under extremely cold conditions and cannot provide cold-resistant protection for the internal structure of the equipment. Furthermore, it lacks wind-resistant structures in extremely cold environments, making the installation of the equipment unstable. Therefore, it is necessary to design a more practical current monitoring equipment for surge arrester resistor elements. Utility Model Content

[0003] The purpose of this invention is to provide a current monitoring device for surge arrester resistor elements to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a current monitoring device for surge arrester resistor elements, comprising: a surge arrester body, the bottom of which is located at the middle of the top of the mounting frame, the bottom of which is connected to a voltage monitor at the bottom of the inner wall of the monitoring box via a wire, the bottom of which is provided with a building base, and protective plates on both sides of the monitoring box; The cold-resistant component includes a tensile frame installed on the inner wall of the monitoring box. The inner wall of the tensile frame is provided with several high-strength thermal insulation foam boards. Several reinforcing ribs are provided on the surface of each of the several high-strength thermal insulation foam boards on opposite sides. A first through hole is opened in the middle of the top of the upper high-strength thermal insulation foam board. A cold-resistant sleeve is inserted and engaged in the inner wall of the first through hole. The top of the cold-resistant sleeve is engaged and connected to the bottom of the surge arrester body. The wire is inserted and arranged inside the cold-resistant sleeve. The wind-resistant component includes two sets of elastic limiting plates installed on the edges of two protective plates. One side of each set of elastic limiting plates is fixedly connected to the edge of the surface of the two windbreak nets. Connecting plates are fixedly connected to the top and bottom of the two windbreak nets. Two connecting holes are opened on the surface of each set of connecting plates. The inner walls of several sets of connecting holes are threadedly connected to several sets of slots opened on both sides of the mounting frame through connecting pins.

[0005] As a preferred embodiment of this utility model: a mounting plate is provided in the middle of one side of the monitoring box, a display dial is provided in the middle of the surface of the mounting plate, and a cold-resistant transparent protective cover is provided on the surface of the display dial.

[0006] As a preferred embodiment of this utility model: a metal nameplate is provided in the middle of the other side surface of the monitoring box, and a second through hole is provided in the middle of the top of the monitoring box, the inner wall of the second through hole being inserted and engaged with the surface of the cold-resistant sleeve.

[0007] As a preferred embodiment of this utility model: two mating holes are provided on both sides of the two protective plates, and the inner walls of several sets of mating holes are threadedly connected to two mounting holes provided on the surface of the two sets of elastic limiting plates by mounting pins.

[0008] As a preferred embodiment of this utility model: the width of the two windbreak nets is greater than the width of the two sides of the monitoring box, and both sets of elastic limiting plates are made of tough material.

[0009] As a preferred embodiment of this utility model: a through hole is provided in the middle of the top of the mounting bracket, the inner wall of the through hole is inserted and engaged with the bottom end of the surge arrester body, and a number of resistor sheets are provided on the surface of the surge arrester body.

[0010] As a preferred embodiment of this utility model: T-shaped strips are provided on both sides of the bottom of the building base, and the two T-shaped strips are engaged and connected with T-shaped grooves opened on both sides of the bottom of the inner wall of the mounting frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are: (1) The temperature of the inner wall of the monitoring box is kept warm by several high-strength thermal insulation foam boards on the inner wall of the tensile frame. Several reinforcing ribs on the surface of the high-strength thermal insulation foam boards, together with the tough tensile frame, can improve the protection of the voltage monitor inside the monitoring box while increasing the strength of the cold-resistant insulation structure. Furthermore, the wires on the top of the voltage monitor are interwoven with the inner wall of the cold-resistant sleeve, which facilitates further cold protection of the monitoring structure and improves the cold resistance of the current monitoring equipment for the surge arrester resistor sheet in extremely cold environments. (2) By attaching two sets of elastic limiting plates to the sides of two protective plates, inserting several sets of mounting pins into several sets of mounting holes and docking holes, attaching two sets of connecting plates to the sides of the mounting frame, and inserting several sets of connecting pins into several sets of connecting holes and slots, the installation and disassembly of the two windbreak nets, the monitoring box and the mounting frame are completed. The two windbreak nets can block the cold wind on both sides after the monitoring box is installed, and with the two sets of resilient elastic limiting plates, the wind resistance of the two windbreak nets is improved, thereby ensuring the stability of the monitoring equipment structure under the action of wind in extremely cold environments. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is one of the structural schematic diagrams of this utility model; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is a schematic diagram of the monitoring box structure of this utility model; Figure 5 This is a schematic diagram of the cold-resistant component structure of this utility model; Figure 6 This is a schematic diagram of the wind-resistant component structure of this utility model.

[0013] In the diagram: 1. Surge arrester body; 11. Mounting bracket; 12. Conductor; 13. Monitoring box; 14. Voltage monitor; 15. Building base; 16. Protective plate; 17. Hole slot; 18. Mounting plate; 19. Display dial; 110. Cold-resistant transparent protective cover; 111. Metal nameplate; 112. Second through hole; 113. Connecting hole; 114. T-strip; 115. T-slot; 2. Cold-resistant components; 21. Tensile frame; 22. High-strength thermal insulation foam board; 23. Reinforcing ribs; 24. First through hole; 25. Cold-resistant sleeve; 3. Wind-resistant components; 31. Elastic limiting plate; 32. Windbreak net; 33. Connecting plate; 34. Connecting hole; 35. Connecting pin; 36. Mounting pin; 37. Mounting hole. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] Please see Figure 1 - Figure 6 A current monitoring device for surge arrester resistors includes: a surge arrester body 1, the bottom of the surge arrester body 1 is located at the middle of the top of the mounting frame 11, the bottom of the surge arrester body 1 is connected to a voltage monitor 14 at the bottom of the inner wall of the monitoring box 13 via a wire 12, a building base 15 is provided at the bottom of the monitoring box 13, and protective plates 16 are provided on both sides of the monitoring box 13. Please see Figure 5 The cold-resistant component 2 includes a tensile frame 21 installed on the inner wall of the monitoring box 13. The inner wall of the tensile frame 21 is provided with several high-strength thermal insulation foam boards 22. Several reinforcing ribs 23 are provided on the surface of the several high-strength thermal insulation foam boards 22 on opposite sides. A first through hole 24 is opened in the middle of the top of the high-strength thermal insulation foam board 22 located at the top. A cold-resistant sleeve 25 is inserted and engaged in the inner wall of the first through hole 24. The top of the cold-resistant sleeve 25 is engaged and connected to the bottom of the surge arrester body 1. The wire 12 is inserted and arranged inside the cold-resistant sleeve 25.

[0016] In practical use: Several high-strength thermal insulation foam boards 22 on the inner wall of the tensile frame 21 keep the temperature of the inner wall of the monitoring box 13 warm. Several reinforcing ribs 23 on the surface of the high-strength thermal insulation foam boards 22, together with the tough tensile frame 21, can improve the protection of the voltage monitor 14 inside the monitoring box 13 while increasing the strength of the cold-resistant insulation structure. Furthermore, the wires 12 on the top of the voltage monitor 14 are interwoven with the inner wall of the cold-resistant sleeve 25, which facilitates further cold-resistant protection of the monitoring structure and improves the cold resistance of the current monitoring equipment for surge arrester resistors in extremely cold environments.

[0017] Please see Figure 6 The wind-resistant component 3 includes two sets of elastic limiting plates 31 installed on the edges of the two protective plates 16. One side of the two sets of elastic limiting plates 31 is fixedly connected to the edge of the surface of the two windbreak nets 32. The top and bottom of the two windbreak nets 32 are fixedly connected to connecting plates 33. The surface of the two sets of connecting plates 33 is provided with two connecting holes 34. The inner walls of the several sets of connecting holes 34 are threadedly connected to the several sets of slots 17 provided on both sides of the mounting bracket 11 by connecting pins 35.

[0018] In practical use: attach the two sets of elastic limiting plates 31 to the sides of the two protective plates 16, insert several sets of mounting pins 36 into several sets of mounting holes 37 and docking holes 113, attach the two sets of connecting plates 33 to the sides of the mounting frame 11, insert several sets of connecting pins 35 into several sets of connecting holes 34 and slots 17, and complete the installation and disassembly of the two windbreak nets 32, the monitoring box 13 and the mounting frame 11. The two windbreak nets 32 can block the cold wind on both sides of the monitoring box 13 after installation, and together with the two sets of resilient elastic limiting plates 31, improve the wind resistance of the two windbreak nets 32, thereby ensuring the stability of the monitoring equipment structure under the action of wind in extremely cold environments.

[0019] Please see Figure 4 A mounting plate 18 is provided in the middle of one side of the monitoring box 13. A display dial 19 is provided in the middle of the surface of the mounting plate 18. A cold-resistant transparent protective cover 110 is provided on the surface of the display dial 19.

[0020] In practical use: the display dial 19 on the surface of the mounting plate 18 can display the data monitored by the voltage monitor 14 inside the monitoring box 13, and together with the cold-resistant transparent protective cover 110, it can display cold-resistant protection on its surface.

[0021] Please see Figure 4 A metal nameplate 111 is provided in the middle of the other side surface of the monitoring box 13, and a second through hole 112 is provided in the middle of the top of the monitoring box 13. The inner wall of the second through hole 112 is inserted and engaged with the surface of the cold-resistant sleeve 25.

[0022] In practical use: the surface of the cold-resistant sleeve 25 is inserted and engaged with the inner wall of the first through hole 24 and the second through hole 112, which facilitates the installation and engagement of the cold-resistant sleeve 25.

[0023] Please see Figure 4 Two mating holes 113 are provided on both sides of the two protective plates 16. The inner walls of several sets of mating holes 113 are threadedly connected to two mounting holes 37 provided on the surface of the two sets of elastic limiting plates 31 by mounting pins 36.

[0024] In practical use: attach the two sets of elastic limiting pieces 31 to the sides of the two protective plates 16, insert several sets of mounting pins 36 into several sets of mounting holes 37 and mating holes 113, thereby installing and fixing the two sets of elastic limiting pieces 31 to the two protective plates 16.

[0025] Please see Figure 2 The width of the two windbreak nets 32 is greater than the width of the two sides of the monitoring box 13, and the two sets of elastic limiting plates 31 are made of tough material.

[0026] In practical use: the width of the two windproof nets 32 is greater than the width of the two sides of the monitoring box 13, so as to facilitate the blocking of cold wind. At the same time, the two sets of elastic limiting plates 31 made of tough material can further improve its buffering capacity during the wind blocking process.

[0027] Please see Figure 3 The mounting bracket 11 has a through hole in the middle of its top. The inner wall of the through hole is inserted and engaged with the bottom of the surge arrester body 1. The surface of the surge arrester body 1 is provided with several resistor sheets.

[0028] In practical use: the bottom end of the surge arrester body 1 is inserted and engaged with the through hole on the top of the mounting bracket 11, which facilitates its installation and disassembly. Several resistance plates on the surface of the surge arrester body 1 facilitate operation in extremely cold environments, and can achieve the function of grounding current when used in conjunction with the building base 15.

[0029] Please see Figure 3 Both sides of the bottom of the building base 15 are provided with T-shaped strips 114, and the two T-shaped strips 114 are engaged with the T-shaped grooves 115 opened on both sides of the bottom of the inner wall of the mounting frame 11.

[0030] In practical use: the two T-shaped strips 114 at the bottom of the building base 15 are engaged with the inner walls of the two T-shaped grooves 115, thereby facilitating the installation and disassembly of the building base 15 and the inner wall of the mounting frame 11.

[0031] In use, several high-strength thermal insulation foam boards 22 on the inner wall of the tension frame 21 insulate the temperature of the inner wall of the monitoring box 13. Several reinforcing ribs 23 on the surface of the high-strength thermal insulation foam boards 22, together with the tough tension frame 21, facilitate the improvement of the protection of the voltage monitor 14 inside the monitoring box 13 while increasing the strength of the cold-resistant insulation structure. Furthermore, the wires 12 on the top of the voltage monitor 14 are interwoven with the inner wall of the cold-resistant sleeve 25, which facilitates further cold-resistant protection of the monitoring structure and improves the cold resistance of the current monitoring equipment for the surge arrester resistor sheet in extremely cold environments. The display dial 19 on the surface of the mounting plate 18 can display the data monitored by the voltage monitor 14 inside the monitoring box 13, and cooperate with the cold-resistant... The transparent protective cover 110 provides cold-resistant protection for its surface. Two sets of elastic limiting plates 31 are attached to the sides of the two protective plates 16. Several sets of mounting pins 36 are inserted into several sets of mounting holes 37 and docking holes 113. Two sets of connecting plates 33 are attached to the sides of the mounting frame 11. Several sets of connecting pins 35 are inserted into several sets of connecting holes 34 and slots 17. This completes the installation and removal of the two windbreak nets 32 from the monitoring box 13 and the mounting frame 11. The two windbreak nets 32 can block the cold wind on both sides of the monitoring box 13 after installation. In conjunction with the two sets of resilient elastic limiting plates 31, the wind resistance of the two windbreak nets 32 is improved, ensuring the stability of the monitoring equipment structure under the action of wind in extremely cold environments.

[0032] The contents not described in detail in this description are existing technologies known to those skilled in the art. 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 current monitoring device for surge arrester resistor elements, characterized in that, include: The surge arrester body (1) has its bottom end set in the middle of the top of the mounting frame (11). The bottom of the surge arrester body (1) is connected to the voltage monitor (14) at the bottom of the inner wall of the monitoring box (13) via a wire (12). The bottom of the monitoring box (13) is provided with a building base (15). Both sides of the monitoring box (13) are provided with protective plates (16). The cold-resistant component (2) includes a tensile frame (21) installed on the inner wall of the monitoring box (13). The inner wall of the tensile frame (21) is provided with several high-strength thermal insulation foam boards (22). Several reinforcing ribs (23) are provided on the surface of the several high-strength thermal insulation foam boards (22) on opposite sides. A first through hole (24) is opened in the middle of the top of the high-strength thermal insulation foam board (22) located above. A cold-resistant sleeve (25) is inserted and clamped in the inner wall of the first through hole (24). The top of the cold-resistant sleeve (25) is clamped and connected to the bottom of the surge arrester body (1). The wire (12) is inserted and arranged inside the cold-resistant sleeve (25). The wind-resistant component (3) includes two sets of elastic limiting plates (31) installed on the edges of the two protective plates (16). One side of the two sets of elastic limiting plates (31) is fixedly connected to the edge of the surface of the two windbreak nets (32). The top and bottom of the two windbreak nets (32) are fixedly connected to connecting plates (33). The surfaces of the two sets of connecting plates (33) each have two connecting holes (34). The inner walls of the several sets of connecting holes (34) are threadedly connected to the several sets of slots (17) opened on both sides of the mounting frame (11) by connecting pins (35).

2. The current monitoring device for surge arrester resistor elements according to claim 1, characterized in that: The monitoring box (13) has a mounting plate (18) in the middle of one side, and a display dial (19) in the middle of the surface of the mounting plate (18), and a cold-resistant transparent cover (110) on the surface of the display dial (19).

3. The current monitoring device for surge arrester resistor elements according to claim 1, characterized in that: A metal nameplate (111) is provided in the middle of the other side surface of the monitoring box (13), and a second through hole (112) is provided in the middle of the top of the monitoring box (13). The inner wall of the second through hole (112) is inserted and engaged with the surface of the cold-resistant sleeve (25).

4. The current monitoring device for surge arrester resistor elements according to claim 1, characterized in that: Two mating holes (113) are provided on both sides of the two protective plates (16). The inner walls of several sets of mating holes (113) are threadedly connected to two mounting holes (37) provided on the surface of the two sets of elastic limiting plates (31) by mounting pins (36).

5. The current monitoring device for surge arrester resistor elements according to claim 1, characterized in that: The width of the two windbreak nets (32) is greater than the width of the monitoring box (13) on both sides, and the two sets of elastic limiting plates (31) are made of tough material.

6. The current monitoring device for surge arrester resistor elements according to claim 1, characterized in that: The mounting bracket (11) has a through hole in the middle of its top. The inner wall of the through hole is inserted and engaged with the bottom end of the surge arrester body (1). The surface of the surge arrester body (1) is provided with several resistor sheets.

7. The current monitoring device for surge arrester resistor elements according to claim 1, characterized in that: The building base (15) has T-shaped strips (114) on both sides of the bottom, and the two T-shaped strips (114) are engaged with the T-shaped grooves (115) on both sides of the bottom of the inner wall of the mounting frame (11).

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