A lightning protection device for a transformer

Abstract

The application discloses a lightning protection device for transformers, which is used for lightning protection of transformers and improves the installation convenience and applicability of the lightning protection device. The application comprises a base, a fixing ring, a central collecting rod, a reactor, a grounding body, an exciter and a reflector. The central collecting rod is fixed on the base through a vertical rod. The grounding body is connected with the ground and is used for connecting the central collecting rod and the reflector with the ground. The central collecting rod and the reflector are in an equipotential state. The reactor is used for generating a potential difference with the exciter and discharging at the tip of the central collecting rod. The reactor, the exciter and the reflector are fixed on the base. The fixing ring is arranged on both sides of the base, is sleeved on a telegraph pole and is used for fixing the base. The base is provided with sliding rails. The fixing ring is slidably connected with the sliding rails through a sliding assembly, so that the fixing rings located at both ends of the base can move close to or away from each other on the sliding rails.

Description

Technical Field

[0001] This application relates to the field of power technology, and in particular to a transformer lightning protection device. Background Technology

[0002] Over the past decade, power construction has developed rapidly and achieved remarkable results. Among them, the installed capacity of power generation has grown rapidly, the speed of power grid construction has advanced by leaps and bounds, the power structure has been continuously optimized, the level of technology and equipment has been greatly improved, and the effects of energy conservation, emission reduction and consumption reduction have been significant, realizing leapfrog development in power construction.

[0003] A transformer is a static electrical device, and power transformers are one of the main pieces of equipment in power plants and substations. Transformers serve multiple functions: they not only raise voltage to deliver electrical energy to the user area, but also lower voltage to various operating levels to meet electricity needs. Because transformers are often installed in outdoor environments, they require lightning protection, such as the installation of lightning rods. However, since transformers are typically installed between two utility poles, installing lightning rods in this environment is very inconvenient, and the varying distances between the poles further complicate the installation process. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a transformer lightning protection device for protecting transformers from lightning, thereby improving the ease of installation and applicability of the lightning protection device.

[0005] This application provides a transformer lightning protection device, including: a base, fixing rings, a central collecting rod, a reactor, a grounding electrode, an exciter, and a reflector. The central collecting rod is fixed to the base by a vertical pole. The grounding electrode is connected to the earth and is used to connect the central collecting rod and the reflector to the earth. The central collecting rod and the reflector are at the same potential. The reactor is used to generate a potential difference with the exciter and discharge at the tip of the central collecting rod. The reactor, exciter, and reflector are fixed to the base. The fixing rings are provided on both sides of the base. The fixing rings are sleeved on the utility pole and fix the base. The base is provided with a slide rail. The fixing rings are slidably connected to the slide rails by sliding components, so that the fixing rings located at both ends of the base can move closer or further apart on the slide rails.

[0006] Optionally, the fixing ring includes a left half ring and a right half ring. The first end of the left half ring is provided with a bolt seat, and the first end is bolted to one end of the right half ring through the bolt seat. The second end of the left half ring is bolted to the other end of the right half ring.

[0007] Optionally, the second end is provided with a screw hole, and the end of the right half ring connected to the second end is provided with multiple screw holes. The bolt on the second end passes through the screw hole on the second end and connects to any one of the multiple screw holes on the right half ring.

[0008] Optionally, the base is provided with two channel steels, the slide rail is provided on the bottom side of the channel steels, the slide rail is provided with an oblong hole, and the fixing ring is slidably connected to the channel steels through the oblong hole.

[0009] Optionally, the sliding assembly includes a sliding post and a fixing nut. The sliding post is threaded, passes through a waist-shaped hole on the slide rail, and is fixed to the slide rail by the fixing nut.

[0010] Optionally, a base plate is provided above the base, the base plate is fixed to the base by bolts, and the upright is installed on the base plate.

[0011] Optionally, the base plate is provided with multiple expansion screw holes.

[0012] Optionally, the fixing ring has a metal ring as its main body inside and a soft rubber sleeve wrapped around it. The rubber sleeve is used to contact the utility pole.

[0013] Optionally, a fixing plate is provided at the bottom of the grounding body, and the fixing plate is fixedly connected to the base plate by bolts. The fixing plate is used to fix the upright.

[0014] Optionally, the fixing ring has a metal ring as its main body inside and a soft rubber sleeve wrapped around it. The rubber sleeve is used to contact the utility pole.

[0015] Optionally, the grounding electrode is connected to the earth via a steel wire mesh.

[0016] As can be seen from the above technical solutions, this application has the following advantages:

[0017] The transformer lightning protection device provided in this application can perform early active discharge through the reactor and exciter, which has a good lightning protection effect on the transformer. At the same time, there are fixing rings on both sides of the base, which can be installed on the utility pole. Since there is a slide rail on the base, the fixing rings are slidably connected to the slide rail through the sliding component, so that the fixing rings at both ends of the base can move closer or further apart on the slide rail. When the distance between the utility poles is different, the position of the fixing rings on the base can be adjusted by sliding to adapt. This transformer lightning protection device is easy to install and has good applicability. Attached Figure Description

[0018] Figure 1This is a schematic diagram of one embodiment of the transformer lightning protection device provided in this application;

[0019] Figure 2 This is a front view structural diagram of the transformer lightning protection device provided in this application;

[0020] Figure 3 This is a schematic diagram of the left-side structure of the transformer lightning protection device provided in this application;

[0021] Figure 4 This is a schematic diagram of another embodiment of the transformer lightning protection device provided in this application;

[0022] Figure 5 This is a cross-sectional structural diagram of an embodiment of the fixing ring provided in this application. Detailed Implementation

[0023] A transformer is a static electrical device, and power transformers are one of the main pieces of equipment in power plants and substations. Transformers serve multiple functions: they not only raise voltage to deliver electrical energy to the user area, but also lower voltage to various operating levels to meet electricity needs. Because transformers are often installed in outdoor environments, they require lightning protection, such as the installation of lightning rods. However, since transformers are typically installed between two utility poles, installing lightning rods in this environment is very inconvenient, and the varying distances between the poles further complicate the installation process.

[0024] Based on this, this application provides a transformer lightning protection device for protecting transformers from lightning, thereby improving the ease of installation and applicability of the lightning protection device.

[0025] In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and other terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to describe the relative positional relationship between the components or parts and do not specifically limit the specific installation orientation of each component or part.

[0026] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0027] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0028] Furthermore, the structures, proportions, sizes, etc., drawn in the accompanying drawings of this application are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modification to the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0029] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] Please see Figures 1 to 5 This application provides a transformer lightning protection device, including: a base 1, a fixing ring 2, a central collecting rod 3, a reactor 4, a grounding body 5, an exciter 6, and a reflector 7. The central collecting rod 3 is fixed to the base 1 by a vertical rod 31. The grounding body 5 is connected to the earth and is used to connect the central collecting rod 3 and the reflector 7 to the earth. The central collecting rod 3 and the reflector 7 are in an equipotential state. The reactor 4 is used to generate a potential difference with the exciter 6 and discharge at the tip of the central collecting rod 3. The reactor 4, the exciter 6, and the reflector 7 are fixed to the base 1. Fixing rings 2 are provided on both sides of the base 1. The fixing rings 2 are sleeved on the utility pole and fix the base 1. A slide rail 10 is provided on the base 1. The fixing rings 2 are slidably connected to the slide rail 10 through a sliding component 20, so that the fixing rings 2 located at both ends of the base 1 can move closer to each other or further away from each other on the slide rail 10.

[0031] In practical applications, the exciter 6 can absorb and store energy from nature, while the reflector 7 and the central collecting rod 3 have a good electrical connection with the ground and are in an equipotential state. Therefore, under normal circumstances, there is an electric field strength between the exciter 6 and the reflector 7. Whenever a lightning flash occurs, the electric field strength increases rapidly. The potential difference between the exciter 6 and the reflector 7 is roughly equivalent to the potential difference between the thundercloud and the ground. The rapid increase in voltage drop between them will cause tip arcing at the tip of the central collecting rod 3 and ionize the air around the tip, forming a tip discharge phenomenon.

[0032] When installing a transformer lightning protection device, the fixing ring 2 is fitted onto the utility pole, and the position of the two fixing rings 2 on the slide rail 10 is adjusted by the sliding component 20 so that the two fixing rings 2 can be adapted to the distance between the two fixing rings and the utility pole, thereby achieving the effect of fixing.

[0033] Optionally, the fixing ring 2 includes a left half ring 21 and a right half ring 22. The first end 211 of the left half ring 21 is provided with a bolt seat 213. The first end 211 is bolted to one end of the right half ring 22 through the bolt seat 213. The second end 212 of the left half ring 21 is bolted to the other end of the right half ring 22.

[0034] The fixing ring 2 can be composed of a left half ring 21 and a right half ring 22. The two half rings can be used to easily put the fixing ring on poles such as utility poles. A bolt seat 213 is provided on the first end 211 of the left half ring 21, and the bolt seat 213 is used to fix one end of the right half ring 22. After the fixing ring 2 is put on the utility pole, the bolt is tightened to complete the fixing.

[0035] Optionally, the second end 212 is provided with a screw hole, and the end of the right half ring 22 connected to the second end 212 is provided with multiple screw holes. The bolt on the second end 212 passes through the screw hole on the second end 212 and connects to any one of the multiple screw holes on the right half ring 22.

[0036] In practical applications, the diameter of the utility pole may vary. In order to further improve the applicability of the transformer lightning protection device, multiple screw holes are provided at the end of the right half ring 22 that is connected to the second end 212. In practice, the appropriate screw holes can be selected for fixing according to the different diameters of the utility pole. The fixing ring 2 is generally thin and ring-shaped, which can produce a certain elastic deformation and thus change the size of the ring.

[0037] Optionally, the base 1 is provided with two channel steels 11, and the slide rail 10 is provided on the bottom side of the channel steels 11. The slide rail 10 is provided with an oblong hole 100, and the fixing ring 2 is slidably connected to the channel steels 11 through the oblong hole 100.

[0038] Optionally, the sliding assembly 20 includes a sliding post 201 and a fixing nut 202. The sliding post 201 is provided with threads, passes through the waist-shaped hole 100 on the slide rail 10, and is fixed to the slide rail 10 by the fixing nut 202.

[0039] The base can be composed of two channel steels 11, with a slide rail 10 at the bottom of each channel steel 11. The slide rail has an oblong hole 100, through which a fixing ring is connected to the slide rail 10. The sliding assembly 20 includes a sliding column 201 and a fixing nut 202. The sliding column 201 passes through the oblong hole 100 and is fixed by the fixing nut 202. When the position of the fixing ring 2 needs to be adjusted, the fixing nut 202 is loosened to adjust the position of the fixing ring 2. After the position is determined, the fixing nut 202 is tightened. This allows for both sliding and fixing of the fixing ring 2, facilitating installation and adjustment.

[0040] Optionally, a base plate 12 is provided above the base 1, and the base plate 12 is fixed to the base 1 by bolts, and the upright 31 is installed on the base plate 12.

[0041] Optionally, the base plate 12 is provided with multiple expansion screw holes 121.

[0042] The pole 31 is fixed to the base 1 via the base plate 12. The base plate 12 is provided with multiple expansion screw holes 121. The base can be used alone to fix other equipment, or it can be used to install other types of lightning protection equipment.

[0043] Optionally, the fixing ring 2 has a metal ring 23 as the main body inside and a soft rubber sleeve 24 wrapped around it. The rubber sleeve 24 is used to contact the utility pole.

[0044] The fixing ring 2 has a metal ring as its main body inside, which can improve the structural strength of the fixing ring 2. The outer rubber sleeve 24 can increase the friction between the fixing ring 2 and the utility pole, increase the stability of the installation, and can effectively protect the utility pole.

[0045] Optionally, a fixing plate 13 is provided at the bottom of the grounding body. The fixing plate 13 is fixedly connected to the base plate 12 by bolts. The fixing plate 13 is used to fix the upright 31.

[0046] Optionally, the grounding electrode 5 is connected to the earth via a steel wire mesh.

[0047] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lightning protection device for a transformer, characterized in that The utility model relates to a kind of lightning rod, including: base, fixed ring, central collection rod, reactor, grounding body, exciter and reflector, the central collection rod is fixed on the base by vertical rod, the grounding body is connected with ground, for the central collection rod and the reflector connect ground, the central collection rod and the reflector are in equipotential state, the reactor is used to generate potential difference with the exciter, and discharge at the central collection rod tip, the reactor, exciter and the reflector are fixed on the base, the base both sides are provided with the fixed ring, the fixed ring is set on electric pole, and the base is fixed, sliding rail is provided on the base, the fixed ring is slidably connected with the sliding rail by sliding assembly, so that the fixed ring at both ends of the base can be close to each other or away from each other on the sliding rail;The fixed ring includes left half ring and right half ring, the first end of the left half ring is provided with bolt seat, the first end is bolt-connected with one end of the right half ring by the bolt seat, the second end of the left half ring is connected with the other end of the right half ring by bolt;The second end is provided with a threaded hole, one end connected with the second end in the right half ring is provided with a plurality of threaded holes, the bolt on the second end is connected with any one of a plurality of threaded holes on the right half ring by passing through the threaded hole on the second end;Two channel steels are provided in the base, and the sliding rail is arranged at the bottom side of the channel steel, a waist-shaped hole is formed in the sliding rail, and the fixed ring is slidably connected with the channel steel through the waist-shaped hole. The sliding assembly includes sliding column and fixed nut, the sliding column is provided with screw thread, the sliding column passes through the waist-shaped hole on the sliding rail and is fixed on the sliding rail by the fixed nut.

2. The transformer lightning protection device as claimed in claim 1, characterized in that A bottom plate is arranged above the base, and the bottom plate is fixed to the base by bolts.

3. The transformer lightning protection device as recited in claim 1, wherein A plurality of expansion screw holes are installed on the bottom plate.

4. The transformer lightning protection device of claim 3, wherein The grounding body is provided with a fixed plate at the bottom, and the fixed plate is fixedly connected to the bottom plate by bolts.

5. The transformer lightning protection device of claim 3, wherein The inside of the fixed ring is mainly made of a metal ring, and the outside is wrapped with a soft rubber sleeve.

6. The transformer lightning arrester of any one of claims 1 to 5, characterized in that The grounding body is connected to the ground by a steel mesh.

7. The transformer lightning arrester of any one of claims 1 to 5, characterized in that ​

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