35kv fixed series gap removable hanging lightning arrester device

Abstract

The utility model discloses a 35kv fixed series gap removable hanging lightning arrester device. The 35kv fixed series gap removable hanging lightning arrester device comprises a first insulator assembly, a second insulator assembly and a lightning arrester assembly which are used for discharging, a pure air fixed series gap is formed between the high-voltage end of the first insulator assembly and the high-voltage end of the second insulator assembly; the low-voltage end of the first insulator assembly is connected with the low-voltage end of the second insulator assembly through a mounting bracket; a low-voltage end assembly is arranged at the side end of the mounting bracket; the high-voltage end of the second insulator assembly is provided with a high-voltage end assembly, and the high-voltage end assembly is detachably connected with the top of the lightning arrester assembly. And the low-voltage end assembly is detachably connected with the bottom of the lightning arrester assembly. According to the utility model, the first insulator assembly, the pure air fixed series gap, the second insulator assembly and the lightning arrester assembly are combined, so that the lightning stroke failure rate of the 35kV overhead transmission line can be greatly reduced; through the high-voltage end assembly and the low-voltage end assembly, an installation mode capable of being rapidly disassembled and replaced is provided for the lightning arrester assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of overvoltage protection of power transmission lines, in particular to a 35kv fixed series gap detachable arrester device. Background Art

[0002] 35kv gap arresters play an important role in the stable operation and safety protection of power systems. At present, there are still problems with the conventional 35kv gap arresters in practical applications: (i) the installation method of the arrester is fixed installation and replacement, and the fault repair takes a long time; (ii) the air gap is not equipped with a dedicated discharge electrode, which makes the 35kV overhead transmission line prone to lightning faults.

[0003] Therefore, it is necessary to provide a 35kv gap lightning arrester that can be quickly replaced and can significantly reduce the lightning failure rate of 35kV overhead transmission lines. Utility Model Content

[0004] The utility model provides a 35kv fixed series gap detachable arrester device, which solves the technical problem that the existing 35kv gap arrester that can be quickly replaced and can significantly reduce the lightning failure rate of the 35kv overhead transmission line cannot be provided.

[0005] The utility model provides a 35kv fixed series gap detachable arrester device, comprising: a first insulator assembly for discharge, a second insulator assembly and an arrester assembly;

[0006] A pure air fixed series gap is formed between the high voltage end of the first insulator assembly and the high voltage end of the second insulator assembly; the low voltage end of the first insulator assembly and the low voltage end of the second insulator assembly are connected via a mounting bracket; a low voltage end assembly is provided at a side end of the mounting bracket;

[0007] The high-voltage end of the second insulator assembly is provided with a high-voltage end assembly, and the high-voltage end assembly is detachably connected to the top of the arrester assembly; the low-voltage end assembly is detachably connected to the bottom of the arrester assembly.

[0008] Preferably, the first insulator assembly comprises a first insulator;

[0009] A high-voltage wiring card is provided at the high-voltage end of the first insulator, and a gap discharge ball is provided at the high-voltage wiring card; and the low-voltage end of the first insulator is fixedly connected to the mounting bracket through a fastener.

[0010] Preferably, the second insulator assembly comprises a second insulator;

[0011] The high-voltage end of the second insulator is provided with a gap conductive ball and the high-voltage end assembly; the low-voltage end of the second insulator is fixedly connected to the mounting bracket through a fastener.

[0012] Preferably, the high-voltage end assembly is composed of a high-voltage end connecting plate, a high-voltage end bent plate and a high-voltage spring sheet connected by fasteners.

[0013] Preferably, the low-pressure end assembly is composed of a low-pressure spring sheet and a low-pressure end hook connected by fasteners.

[0014] Preferably, the arrester assembly comprises an arrester body and a low-voltage end grounding wire;

[0015] A high-voltage conversion contact is provided on the top of the arrester body, and a round hole pull piece is provided on the high-voltage conversion contact; an arrester bracket is provided at the bottom of the arrester body, and a protective cover is provided at the bottom of the arrester bracket;

[0016] One end of the low-voltage end grounding wire is connected to the bottom end of the arrester bracket.

[0017] Preferably, the high-voltage conversion contact is clamped on the bottom of the high-voltage end bent plate of the high-voltage end assembly, and the top of the high-voltage conversion contact is in contact with the high-voltage spring of the high-voltage end assembly;

[0018] The arrester bracket is clamped with the low-voltage end hook of the low-voltage end assembly, and the arrester bracket is abutted with the low-voltage spring sheet of the low-voltage end assembly;

[0019] The other end of the low-voltage end grounding wire is connected to the clamping point between the lightning arrester bracket and the low-voltage end hook.

[0020] Preferably, the arrester body is a 35kv arrester body.

[0021] Preferably, the insulators corresponding to the first insulator assembly and the second insulator assembly are both 35kv silicone rubber insulators.

[0022] Preferably, the mounting bracket is a metal mounting bracket.

[0023] It can be seen from the above technical solutions that the utility model has the following advantages:

[0024] The utility model provides a 35kv fixed series gap detachable arrester device, comprising: a first insulator assembly, a second insulator assembly and an arrester assembly for discharge; a pure air fixed series gap is formed between the high-voltage end of the first insulator assembly and the high-voltage end of the second insulator assembly; the low-voltage end of the first insulator assembly is connected to the low-voltage end of the second insulator assembly through a mounting bracket; a low-voltage end assembly is provided at the side end of the mounting bracket; a high-voltage end assembly is provided at the high-voltage end of the second insulator assembly, and the high-voltage end assembly is detachably connected to the top of the arrester assembly; and the low-voltage end assembly is detachably connected to the bottom of the arrester assembly.

[0025] In the utility model, a pure air fixed series gap discharge is formed by the high-voltage end of the first insulator assembly and the high-voltage end of the second insulator assembly, and combined with the arrester assembly, it is ensured that a stable protection effect is played when the 35kv transmission line is struck by lightning and overvoltage is generated. At the same time, the high-voltage end assembly and the low-voltage end assembly are combined to realize the rapid replacement of the arrester, which solves the technical problem that there is no existing 35kv gap arrester that can be quickly replaced and can significantly reduce the lightning failure rate of the 35kV overhead transmission line. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 A schematic diagram of the structure of a 35kv fixed series gap detachable arrester device provided in this application;

[0028] Figure 2 An axial view of the high pressure end assembly provided for this application;

[0029] Figure 3 An axial view of the low pressure end assembly provided for this application;

[0030] Among them, the figure markings are: first insulator 1, high-voltage wiring card 11, gap discharge ball 12, second insulator 2, gap conductive ball 21, high-voltage end assembly 22, high-voltage end connecting plate 221, high-voltage end bent plate 222, high-voltage spring clip 223, lightning arrester body 3, high-voltage conversion contact 31, lightning arrester bracket 32, low-voltage end grounding wire 321, protective cover 33, mounting bracket 4, low-voltage end assembly 41, low-voltage spring clip 411, low-voltage end hook 412. DETAILED DESCRIPTION

[0031] The embodiment of the utility model provides a 35kv fixed series gap detachable lightning arrester device, which is used to solve the technical problem that it is impossible to provide a 35kv gap lightning arrester that can be quickly replaced and can significantly reduce the lightning failure rate of 35kV overhead transmission lines.

[0032] In order to make the utility model's purpose, features, and advantages more obvious and easy to understand, the following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the embodiments described below are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0035] See also Figure 1 , an embodiment of a 35kv fixed series gap removable arrester device provided in the present application comprises: a first insulator assembly for discharge, a second insulator assembly and an arrester assembly;

[0036] A pure air fixed series gap is formed between the high-voltage end of the first insulator assembly and the high-voltage end of the second insulator assembly; the low-voltage end of the first insulator assembly is connected to the low-voltage end of the second insulator assembly through a mounting bracket 4; a low-voltage end assembly 41 is provided at the side end of the mounting bracket 4; a high-voltage end assembly 22 is provided at the high-voltage end of the second insulator assembly, and the high-voltage end assembly 22 is detachably connected to the top of the arrester assembly; the low-voltage end assembly 41 is detachably connected to the bottom of the arrester assembly.

[0037] It can be understood that the first insulator assembly combined with the pure air fixed series gap can play the discharge function to a large extent, and release the overvoltage generated by lightning through the lightning arrester assembly, which can effectively achieve the insulation and lightning protection effects; in addition, the first insulator assembly and the second insulator assembly are vertically arranged on the mounting bracket 4, and the low-voltage end assembly 41 is fixedly connected to the side end of the mounting bracket 4 by fasteners.

[0038] In this embodiment, the first insulator assembly, the second insulator assembly and the lightning arrester assembly adopt the above-mentioned structural connection method to effectively exert the performance effect of the overvoltage protection of the device on the 35kv transmission line; the first insulator assembly, the second insulator assembly and the mounting bracket 4 constitute a fixed series gap detachable hanging device; the fixed series gap detachable hanging device and the lightning arrester assembly are used in conjunction to provide stable protection for the 35kv transmission line when it is subjected to lightning strikes and overvoltage is generated, thereby greatly reducing the lightning strike failure rate of the 35kV overhead transmission line; at the same time, the high-voltage end assembly 22 and the low-voltage end assembly 41 provide a lightning arrester assembly with an installation method that can be quickly disassembled and replaced.

[0039] In a preferred embodiment, the first insulator assembly includes a first insulator 1; the high-voltage end of the first insulator 1 is provided with a high-voltage wiring card 11, and the high-voltage wiring card 11 is provided with a gap discharge ball 12; the low-voltage end of the first insulator 1 is fixedly connected to the mounting bracket 4 through a fastener.

[0040] It should be noted that the high-voltage wiring card 11 is fixedly connected to the high-voltage end of the first insulator 1 by fasteners, and the gap discharge ball 12 is fixedly connected to the high-voltage wiring card 11 by fasteners; the high-voltage wiring card 11 is used to connect the high-voltage wiring terminal of the 35kv transmission line.

[0041] In a preferred embodiment, the second insulator assembly includes a second insulator 2; the high voltage end of the second insulator 2 is provided with a gap conductive ball 21 and a high voltage end assembly 22; the low voltage end of the second insulator 2 is fixedly connected to the mounting bracket 4 by fasteners.

[0042] It should be noted that the gap conductive ball 21 and the high-voltage end assembly 22 are respectively fixedly connected to the two sides of the high-voltage end of the second insulator 2 by fasteners; a pure air fixed series gap is formed between the gap discharge ball 12 and the gap conductive ball 21, and the pure air fixed series gap provided in this embodiment will not be affected by the installation and operation of the lightning arrester and cause changes in the lightning protection characteristics; the gap discharge ball 12 discharges through the pure air fixed series gap, so the device is in an insulating state during the normal operation of the power grid, and will not be affected by external factors to generate overvoltage, thereby increasing the service life of the lightning arrester body 3; at the same time, the combination of the gap discharge ball 12, the pure air fixed series gap, the gap conductive ball 21 and the high-voltage end assembly 22 can release the overvoltage generated by lightning from the lightning arrester assembly, thereby reducing the probability of a permanent grounding fault in the power grid system caused by damage to the lightning arrester body 3 of the lightning arrester device, effectively protecting the 35kv power supply line from lightning strikes and ensuring the normal operation of the power grid system.

[0043] See also Figure 2 In a preferred embodiment, the high-voltage end assembly 22 is composed of a high-voltage end connecting plate 221, a high-voltage end bent plate 222 and a high-voltage spring piece 223 connected by fasteners.

[0044] See also Figure 3 In a preferred embodiment, the low-pressure end assembly 41 is composed of a low-pressure spring piece 411 and a low-pressure end hook 412 connected by fasteners.

[0045] In a preferred embodiment, the lightning arrester assembly includes a lightning arrester body 3 and a low-voltage end grounding wire 321; a high-voltage conversion contact 31 is provided on the top of the lightning arrester body 3, and the high-voltage conversion contact 31 is provided with a round hole pull piece; a lightning arrester bracket 32 ​​is provided at the bottom of the lightning arrester body 3, and a protective cover 33 is provided on the bottom of the lightning arrester bracket 32; one end of the low-voltage end grounding wire 321 is connected to the bottom end of the lightning arrester bracket 32.

[0046] It can be understood that the arrester body 3, the low-voltage end grounding wire 321, the high-voltage conversion contact 31, the arrester bracket 32 ​​and the protective cover 33 are connected in combination, and each component can be tightened and fixed by nuts. The constructed arrester assembly provides a protector body for the 35kv fixed series gap detachable arrester device; wherein, the high-voltage conversion contact 31 is provided with a round hole pull piece. After the high-voltage conversion contact 31 is fixedly connected to the arrester body 3, the movement of the arrester body 3 is driven by pulling the round hole pull piece.

[0047] In a preferred embodiment, the high-voltage conversion contact 31 is clamped at the bottom of the high-voltage end bend plate 222 of the high-voltage end assembly 22, and the top of the high-voltage conversion contact 31 is abutted against the high-voltage spring clip 223 of the high-voltage end assembly 22; the lightning arrester bracket 32 ​​is clamped with the low-voltage end hook 412 of the low-voltage end assembly 41, and the lightning arrester bracket 32 ​​is abutted against the low-voltage spring clip 411 of the low-voltage end assembly 41; the other end of the low-voltage end grounding wire 321 is connected to the clamping point between the lightning arrester bracket 32 ​​and the low-voltage end hook 412.

[0048] It can be understood that during the installation of the lightning arrester assembly, the lightning arrester bracket 32 ​​of the lightning arrester body 3 is inserted into the low-voltage end hook 412 of the low-voltage end assembly 41, and the lightning arrester bracket 32 ​​is abutted against the low-voltage spring piece 411 of the low-voltage end assembly 41, and then the round hole pull piece is pulled upward, so that the high-voltage conversion contact 31 at the top of the lightning arrester body 3 is inserted into the bottom extension plate at the bottom of the high-voltage end bent plate 222, and abutted against the high-voltage spring piece 223 of the high-voltage end assembly 22. At this time, the lightning arrester assembly is stably connected to the fixed series gap detachable hanging device, so as to realize the rapid installation of the lightning arrester assembly;

[0049] The lightning arrester assembly of the device adopts a quick replacement method, which can effectively avoid the inconvenience of power outage for replacement due to lightning arrester damage, thereby greatly reducing the impact of power outages and operational risks when replacing and repairing the lightning arrester body 3.

[0050] In a preferred embodiment, the arrester body 3 is a 35kv arrester body.

[0051] In a preferred embodiment, the insulators corresponding to the first insulator assembly and the second insulator assembly are both 35kv silicone rubber insulators.

[0052] In a preferred embodiment, the mounting bracket 4 is a metal mounting bracket, and the material of the high-voltage end assembly 22 is a metal material.

[0053] The working process of this device is as follows: during the normal operation of the power grid system, the gap discharge ball 12 discharges through the pure air fixed series gap, so that the device is in an insulating state and will not be affected by external factors to generate overvoltage; in the thunderstorm season, when the 35kv transmission line is struck by lightning, the lightning current is introduced from the gap discharge ball 12 of the high-voltage terminal wiring card through the pure air fixed series gap to the gap conductive ball 21, and then transmitted from the gap conductive ball 21 to the high-voltage end component 22, and finally released to the ground by the lightning arrester body 3, thereby avoiding damage to the equipment on the 35kv transmission line due to the overvoltage generated by lightning, thereby ensuring the stable and safe operation of the equipment on the 35kv transmission line, and can greatly reduce the lightning failure rate of the 35kV transmission line.

[0054] After the arrester body 3 has been in operation for a long time and is damaged by the overvoltage generated by lightning, a new arrester assembly can be quickly replaced; specifically, the process of removing the damaged arrester assembly includes: pulling out the round hole pull piece of the high-voltage conversion contact 31 until the high-voltage conversion contact 31 is separated from the high-voltage end assembly 22, and then removing the arrester bracket 32 ​​from the low-voltage end hook 412 of the low-voltage end assembly 41; the installation process of the new arrester assembly includes: inserting the arrester bracket 32 ​​of the arrester body 3 into the low-voltage end hook 412 of the low-voltage end assembly 41, and then pulling up the round hole pull piece, so that the high-voltage conversion contact 31 at the top of the arrester body 3 is inserted into the bottom extension plate at the bottom of the high-voltage end bend plate 222, and abuts against the high-voltage spring piece 223 of the high-voltage end assembly 22, thereby completing the stable installation of the new arrester assembly. In combination with the high-voltage end assembly 22 and the low-voltage end assembly 41, the arrester body 3 can be replaced quickly and stably, avoiding safety hazards in the 35kV transmission line caused by the inconvenience of replacing the arrester after it is damaged.

[0055] The present application provides a 35kv fixed series gap detachable arrester device, the device comprising: a first insulator assembly for discharge, a second insulator assembly and an arrester assembly; a pure air fixed series gap is formed between the high voltage end of the first insulator assembly and the high voltage end of the second insulator assembly; the low voltage end of the first insulator assembly is connected to the low voltage end of the second insulator assembly through a mounting bracket; a low voltage end assembly is provided at the side end of the mounting bracket; a high voltage end assembly is provided at the high voltage end of the second insulator assembly, and the high voltage end assembly is detachably connected to the top of the arrester assembly; the low voltage end assembly is detachably connected to the bottom of the arrester assembly;

[0056] In this device, a pure air fixed series gap discharge is formed by the high-voltage end of the first insulator assembly and the high-voltage end of the second insulator assembly, and combined with the lightning arrester assembly, it ensures that a stable protection effect is played when the 35kv transmission line is subjected to lightning overvoltage, thereby reducing the probability of permanent grounding fault in the power grid system due to damage to the lightning arrester, and greatly reducing the lightning failure rate of the 35kV overhead transmission line; at the same time, the combination of the high-voltage end assembly and the low-voltage end assembly can realize the rapid replacement of the lightning arrester, thereby greatly reducing the impact of power outages and operational risks during replacement and emergency repairs of the lightning arrester, effectively protecting the power supply line from lightning strikes to ensure the normal operation of the system, and improving work efficiency and economic benefits.

[0057] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A 35kv fixed series gap detachable arrester device, characterized in that: include: a first insulator assembly, a second insulator assembly and a lightning arrester assembly for discharging; A pure air fixed series gap is formed between the high voltage end of the first insulator assembly and the high voltage end of the second insulator assembly; the low voltage end of the first insulator assembly and the low voltage end of the second insulator assembly are connected via a mounting bracket; a low voltage end assembly is provided at a side end of the mounting bracket; The high-voltage end of the second insulator assembly is provided with a high-voltage end assembly, and the high-voltage end assembly is detachably connected to the top of the arrester assembly; the low-voltage end assembly is detachably connected to the bottom of the arrester assembly.

2. The 35kv fixed series gap detachable arrester device according to claim 1 is characterized in that: The first insulator assembly includes a first insulator; A high-voltage wiring card is provided at the high-voltage end of the first insulator, and a gap discharge ball is provided at the high-voltage wiring card; and the low-voltage end of the first insulator is fixedly connected to the mounting bracket through a fastener.

3. The 35kv fixed series gap detachable arrester device according to claim 1 is characterized in that: The second insulator assembly includes a second insulator; The high-voltage end of the second insulator is provided with a gap conductive ball and the high-voltage end assembly; the low-voltage end of the second insulator is fixedly connected to the mounting bracket through a fastener.

4. The 35kv fixed series gap detachable arrester device according to claim 1 is characterized in that: The high-voltage end assembly is composed of a high-voltage end connecting plate, a high-voltage end bent plate and a high-voltage spring sheet connected by fasteners.

5. The 35kv fixed series gap detachable arrester device according to claim 1 is characterized in that: The low-pressure end assembly is composed of a low-pressure spring sheet and a low-pressure end hook connected by fasteners.

6. The 35kv fixed series gap detachable arrester device according to claim 1 is characterized in that: The arrester assembly comprises an arrester body and a low-voltage end grounding wire; A high-voltage conversion contact is provided on the top of the arrester body, and a round hole pull piece is provided on the high-voltage conversion contact; an arrester bracket is provided at the bottom of the arrester body, and a protective cover is provided at the bottom of the arrester bracket; One end of the low-voltage end grounding wire is connected to the bottom end of the arrester bracket.

7. The 35kv fixed series gap detachable arrester device according to claim 6 is characterized in that: The high-voltage conversion contact is clamped on the bottom of the high-voltage end bent plate of the high-voltage end assembly, and the top of the high-voltage conversion contact is in contact with the high-voltage spring of the high-voltage end assembly; The arrester bracket is clamped with the low-voltage end hook of the low-voltage end assembly, and the arrester bracket is abutted with the low-voltage spring sheet of the low-voltage end assembly; The other end of the low-voltage end grounding wire is connected to the clamping point between the lightning arrester bracket and the low-voltage end hook.

8. The 35kv fixed series gap detachable arrester device according to claim 6 is characterized in that: The arrester body is a 35kv arrester body.

9. The 35kv fixed series gap detachable arrester device according to claim 3 is characterized in that: The insulators corresponding to the first insulator assembly and the second insulator assembly are both 35kv silicone rubber insulators.

10. The 35kv fixed series gap detachable arrester device according to claim 1 is characterized in that: The mounting bracket is a metal mounting bracket.

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