CN110767432A - Outdoor transformer lightning arrester for power engineering and installation method thereof - Google Patents

Abstract

The invention discloses an outdoor transformer lightning protection device for electric power engineering and an installation method thereof, comprising a box body, a first ceramic plate is screwed on the upper surface of the box body, and a first ceramic plate is fixedly connected to the upper surface of the first ceramic plate Two ceramic plates; the contact area of the current is increased through the second metal plate, and by setting two first conductive columns and second conductive columns, the current is collected and introduced to the first metal plate, so that the collection of lightning is improved. The effect of the current, and the second conductive column will be connected to the second metal mesh, the second conductive column, the first conductive column, the first metal mesh and the second metal mesh cooperate to form twice the lightning current collection buffer and prevent current Leakage, through the cooperation of the second ceramic plate and the insulating rubber sheet, the collected current is gradually reduced to achieve the effect of current buffering, and the current is blocked again through the first ceramic plate, which effectively reduces the current of lightning and avoids being affected by lightning. Lightning strikes, resulting in insufficient power supply.

Description

An outdoor transformer lightning protection device for electric power engineering and its installation method

technical field

The invention relates to the technical field of electric power engineering, in particular to an outdoor transformer lightning protection device for electric power engineering and an installation method thereof.

Background technique

Electric power engineering, that is, engineering related to the production, transmission and distribution of electric energy, in a broad sense, also includes engineering that uses electricity as power and energy in various fields. With the rapid development of the economy, the demand for electricity is also increasing day by day. As the main equipment in the power transmission and transformation system, the transformer has also been developed rapidly. The transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. The main component is the primary coil. , secondary coil and iron core (magnetic core). The main functions are: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), etc., which can be divided into: power transformers and special transformers (electric furnace transformers, rectifier transformers, power frequency test transformers, voltage regulators) , mining transformers, audio transformers, intermediate frequency transformers, high-frequency transformers, impact transformers, instrument transformers, electronic transformers, reactors, transformers, etc.), when outdoor transformers are working, when they are attacked by lightning, the transformer will be affected by lightning. The existing transformer is equipped with a lightning protection device. The performance of the lightning protection device is poor, and the lightning protection capability is weak, resulting in insufficient power supply. Therefore, an outdoor transformer lightning protection device for power engineering and its installation method are proposed.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an outdoor transformer lightning protection device for electric power engineering and an installation method thereof, so as to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: an outdoor transformer lightning protection device for electric power engineering, comprising a box body, the upper surface of the box body is screwed with a first ceramic plate, and the upper surface of the first ceramic plate is A second ceramic plate is fixedly connected, a first metal plate is arranged on the side of the second ceramic plate away from the box, and two first conductive columns are arranged on the upper surface of the first metal plate. Both ends of a metal pole plate are screwed with support plates, the two support plates are welded with a second metal mesh on one side away from the first metal pole plate, and one of the two second metal meshes is away from the support plate. The side screws are connected to the outer wall of the second ceramic plate, the upper part of the first metal plate is provided with a first metal mesh, and the ends of the two first conductive columns away from the first metal plate penetrate through the first metal mesh. Inside, one end of the top of the first conductive column is screwed with a second metal plate, both sides of the second metal plate are screwed with a second conductive column, and the second conductive column runs through from top to bottom in sequence. The first metal mesh and the first metal electrode plate, and one end of the second conductive column away from the second metal electrode plate is screwed to one side of the second metal mesh.

As a further preference of the technical solution: two lightning rod bodies are respectively provided on both sides of the upper surface of the second metal plate, one side of the lightning rod body is connected with a ground wire, and the joint of the ground wire is led into the ground.

As a further preference of this technical solution: insulating boards are bonded to both sides of the inner wall and the top of the inner wall of the box body, and a moisture absorption board is bonded to the bottom of the inner wall of the box body.

As a further preference of this technical solution: both inner walls of the box body are screwed with cooling fans, one end of the cooling fan is connected with an exhaust pipe, and the end of the exhaust pipe away from the cooling fan runs through the box body A filter screen is provided inside the end of the exhaust pipe away from the cooling fan.

As a further preference of this technical solution: two fixing pieces are fixedly connected on both sides of the lightning rod body, and bolts are threadedly connected to the inside of the fixing pieces, and the bolts sequentially penetrate the fixing piece and the second fixing piece from top to bottom. Metal plate.

As a further preference of this technical solution: baffles are attached to both ends of the second ceramic plate, and the bottom of the baffle close to the second ceramic plate is screwed to the upper surface of the first ceramic plate. The shape of the side of the baffle plate away from the second ceramic plate is curved.

As a further preference of this technical solution: two bases are welded symmetrically on both sides of the bottom of the transformer body, and fixed plates are welded on both sides of the inner wall of the box close to the base, and the two bases are remote from the transformer body. One side runs through the interior of the fixing plate, and one side of the lower surface of the base is fixedly connected to the upper surface of the moisture-absorbing plate.

As a further preference of the technical solution: the upper surface of the fixing plate is provided with through holes distributed at equal intervals, and grids are arranged inside the through holes.

As a further preference of this technical solution: an insulating rubber sheet is bonded to the lower surface of the second ceramic plate, a support column is fixedly connected to the lower surface of the insulating rubber sheet, and an end of the support column away from the insulating rubber sheet is fixed connected to the upper surface of the first ceramic plate.

In addition, the present invention also provides: an installation method of an outdoor transformer lightning protection device for power engineering, comprising the following steps:

S1. First, install both sides of the second ceramic plate on the first ceramic plate, then support the support plate through the baffle plate, and fix the second metal mesh and the first metal plate on the support plate, so that the first metal The bottom of the pole plate is attached to the top of the second ceramic plate, and the arc length of the first ceramic plate accounts for 2/3 to 1/4 of the circumference;

S2. Fix the two first conductive pillars and the second conductive pillars on the first metal plate, and connect the bottom of the second conductive pillar with the second metal mesh, and the top of the first conductive pillar and the second conductive pillar pass through The first metal mesh is connected with the second metal pole plate, the gap distance between the first metal pole plate and the second metal pole plate is 7-15cm, the distance between the two first conductive columns is 6-12cm, the first The distance between the conductive column and the second conductive column is 9-15cm;

S3. Connect the lightning rod body to the second metal plate through the fixing piece, connect the ground wire, and finally connect the ground wire to the ground. The distance between the two lightning rod bodies is 28-38cm.

Compared with the prior art, the beneficial effects of the present invention are: the contact area of the current is increased through the second metal plate, and by arranging the two first conductive columns and the second conductive columns, the current is collected to the first conductive column. On the metal plate, the effect of collecting lightning current is improved, and the second conductive column will be connected to the second metal mesh. The second conductive column, the first conductive column, the first metal mesh and the second metal mesh cooperate to form two. The second is to collect and buffer the lightning current and prevent the current from leaking. Through the cooperation of the second ceramic plate and the insulating rubber sheet, the collected current is gradually reduced to achieve the effect of current buffering, and the first ceramic plate is used to block the current again, effectively It reduces the current of lightning and avoids the occurrence of insufficient power supply due to the influence of lightning.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the enlarged structure schematic diagram of A area in Fig. 1 of the present invention;

Fig. 3 is the enlarged structural schematic diagram of B area in Fig. 1 of the present invention;

Fig. 4 is the enlarged structural representation of C area in Fig. 1 of the present invention;

FIG. 5 is a schematic diagram of the internal structure of the exhaust pipe of the present invention.

In the figure: 1, the box body; 2, the insulating plate; 3, the first ceramic plate; 4, the first metal plate; 5, the first metal mesh; 6, the second metal plate; 7, the first conductive column; 8. Second conductive column; 9. Grounding wire; 11. Baffle plate; 12. Cooling fan; 13. Exhaust pipe; 14. Filter screen; 16. Fixing part; 17. Bolt; 18. Lightning rod body; 19. Base ; 20, grille; 21, moisture absorption plate; 22, transformer body; 23, through hole; 24, second metal mesh; 25, second ceramic plate; 26, support column; 27, insulating rubber sheet; 28, fixing plate ; 29, support plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

1-5, the present invention provides a technical solution: an outdoor transformer lightning protection device for electric power engineering, comprising a box body 1, the upper surface of the box body 1 is screwed with a first ceramic plate 3, and the first ceramic plate 3 is screwed on the upper surface of the box body 1. A second ceramic plate 25 is fixedly connected to the upper surface of a ceramic plate 3 , and a first metal electrode plate 4 is disposed on the side of the second ceramic plate 25 away from the box 1 . The upper surface of the first metal electrode plate 4 Two first conductive pillars 7 are provided, both ends of the first metal pole plate 4 are screwed with support plates 29, and the two support plates 29 are welded with the first metal pole plate 4 on one side away from the first metal pole plate 4. Two metal meshes 24, one side of the two second metal meshes 24 away from the support plate 29 is screwed to the outer wall of the second ceramic plate 25, the upper part of the first metal pole plate 4 is provided with a first metal mesh 5, One end of the two first conductive columns 7 away from the first metal plate 4 penetrates through the interior of the first metal mesh 5, and one end of the top of the first conductive column 7 is screwed with the second metal plate 6. Second conductive pillars 8 are screwed on both sides of the two metal electrode plates 6 . The second conductive pillars 8 run through the first metal mesh 5 and the first metal electrode plate 4 in sequence from top to bottom. The second conductive pillars 8. One end away from the second metal plate 6 is screwed to one side of the second metal mesh 24. Two lightning rod bodies 18 are respectively provided on both sides of the upper surface of the second metal pole plate 6, one side of the lightning rod body 18 is connected with a ground wire 9, and the joint of the ground wire 9 is introduced into the ground. Through the above settings, When the lightning strikes the lightning rod body 18, the grounding wire 9 can lead the lightning to the ground, and the current is introduced into the ground in time, which improves the impact strength of the transformer against lightning. Both sides of the inner wall of the box body 1 and the top of the inner wall are bonded with insulating plates 2 , and the bottom of the inner wall of the box body 1 is bonded with a moisture absorption plate 21 . To a certain insulation effect, buffer or reduce the lightning current to contact the transformer body 22 . Both inner walls of the box body 1 are screwed with a cooling fan 12 , one end of the cooling fan 12 is connected with an exhaust pipe 13 , and one end of the exhaust pipe 13 away from the cooling fan 12 penetrates through one end of the box body 1 . A filter screen 14 is arranged inside the end of the exhaust pipe 13 away from the cooling fan 12, and the heat of the transformer body 22 inside the box 1 is dissipated through the cooling fan 12. The cooling fan 12 and the through hole 23 cooperate to make the box The air in the body 1 circulates and flows, and the end of the exhaust pipe 13 located outside the box body 1 faces the ground, which can prevent rainwater from entering the cooling fan 12 from the exhaust pipe 13, which is harmful to the cooling fan 12 and the transformer body in the box body 1. 22 to cause damage. Two fixing pieces 16 are fixedly connected to both sides of the lightning rod body 18 , and bolts 17 are threadedly connected inside the fixing pieces 16 . 6. Through the above arrangement, the two fixing parts 16 clamp the lightning rod body 18, and are fixed with the second metal plate 6 by the bolts 17, so as to prevent the lightning rod body 18 from being used for a long time, resulting in unstable safety, and can The second metal plate 6 is fixed. The baffles 11 are attached to both ends of the second ceramic plate 25 , and the bottom of the baffle 11 close to the second ceramic plate 25 is screwed to the upper surface of the first ceramic plate 3 . The shape of the baffle 11 away from the second ceramic plate 25 is curved. Through the above arrangement, the baffle 11 forms a rain cover, which can prevent rainwater from directly falling on the box 1, thereby ensuring the safe operation of the transformer. Improve the lightning protection function of the transformer. Two bases 19 are welded symmetrically to each other on both sides of the bottom of the transformer body 22 , a fixing plate 28 is welded on both sides of the inner wall of the box body 1 close to the base 19 , and the sides of the two bases 19 are far from the transformer body 22 Running through the interior of the fixing plate 28, one side of the lower surface of the base 19 is fixedly connected to the upper surface of the moisture absorbing plate 21. Through the above arrangement, the base 19 is used to isolate the transformer body 22 from direct contact with the bottom of the box body 1, and through the The function of the through hole 23 makes the air flow in the space between the box body 1 and the fixed plate 28 , and the moisture absorption plate 21 can absorb the moisture at the connection between the box body 1 and the base 19 , reducing the bottom of the box body 1 . The humidity keeps the transformer body 22 dry and improves the lightning protection effect of the transformer body 22 . The upper surface of the fixing plate 28 is provided with through holes 23 equidistantly distributed, and the interior of the through holes 23 are provided with grids 20 . The grid 20 prevents dust from entering the transformer body 22 in the box 1 from the through hole 23 . The lower surface of the second ceramic plate 25 is bonded with an insulating rubber sheet 27, the lower surface of the insulating rubber sheet 27 is fixedly connected with a support column 26, and the end of the support column 26 away from the insulating rubber sheet 27 is fixedly connected to the first On the upper surface of the first ceramic plate 3, through the above arrangement, the two support columns 26 respectively support the two sides of the second ceramic plate 25, and the lower surface of the second ceramic plate 25 is provided with insulating rubber sheets 27, which play a certain insulating role , to avoid conduction, and the cooperation of the second ceramic plate 25 and the insulating rubber sheet 27 enhances the protection of the second ceramic plate 25, buffers or reduces the contact of lightning current to the transformer body 22, and avoids damage to the transformer body 22.

In addition, the present invention also provides: an installation method of an outdoor transformer lightning protection device for power engineering, comprising the following steps:

S1. First, install both sides of the second ceramic plate on the first ceramic plate, then support the support plate through the baffle plate, and fix the second metal mesh and the first metal plate on the support plate, so that the first metal The bottom of the pole plate is attached to the top of the second ceramic plate, and the arc length of the first ceramic plate accounts for 1/3 of the circumference;

S2. Fix the two first conductive pillars and the second conductive pillars on the first metal plate, and connect the bottom of the second conductive pillar with the second metal mesh, and the top of the first conductive pillar and the second conductive pillar pass through The first metal mesh is connected with the second metal pole plate, the gap distance between the first metal pole plate and the second metal pole plate is 8cm, the distance between the two first conductive columns is 6cm, and the first conductive column and the second metal pole plate are separated by 8cm. The distance between the two conductive pillars is 10cm;

S3. Connect the lightning rod body to the second metal plate through the fixing piece, connect the ground wire, and finally connect the ground wire to the ground. The distance between the two lightning rod bodies is 28cm.

Working principle or structural principle, when using, firstly, when the lightning strikes the lightning rod body 18, the grounding wire 9 can lead the lightning to the ground, and the current is introduced into the ground in time, which improves the impact strength of the transformer against lightning, through the second metal plate 6 , the current contact area is increased, and by setting two first conductive columns 7 and second conductive columns 8, the current is collected and introduced to the first metal plate 4, which improves the effect of collecting lightning current. During the process, the leakage of current is prevented by the first metal mesh 5, and the second conductive column 8 will be connected to the second metal mesh 24. The second conductive column 8 and the first conductive column 7 form twice the collection buffer for lightning current. And to prevent the current from leaking out, and then through the cooperation of the second ceramic plate 25 and the insulating rubber sheet 27, the collected current is gradually reduced to achieve the effect of current buffering, and the current is blocked again by the first ceramic plate 3, which effectively reduces the Lightning current.

Example 2

1-5, the present invention provides a technical solution: an outdoor transformer lightning protection device for electric power engineering, comprising a box body 1, the upper surface of the box body 1 is screwed with a first ceramic plate 3, and the first ceramic plate 3 is screwed on the upper surface of the box body 1. A second ceramic plate 25 is fixedly connected to the upper surface of a ceramic plate 3 , and a first metal electrode plate 4 is disposed on the side of the second ceramic plate 25 away from the box 1 . The upper surface of the first metal electrode plate 4 Two first conductive pillars 7 are provided, both ends of the first metal pole plate 4 are screwed with support plates 29, and the two support plates 29 are welded with the first metal pole plate 4 on one side away from the first metal pole plate 4. Two metal meshes 24, one side of the two second metal meshes 24 away from the support plate 29 is screwed to the outer wall of the second ceramic plate 25, the upper part of the first metal pole plate 4 is provided with a first metal mesh 5, One end of the two first conductive columns 7 away from the first metal plate 4 penetrates through the interior of the first metal mesh 5, and one end of the top of the first conductive column 7 is screwed with the second metal plate 6. Second conductive pillars 8 are screwed on both sides of the two metal electrode plates 6 . The second conductive pillars 8 run through the first metal mesh 5 and the first metal electrode plate 4 in sequence from top to bottom. The second conductive pillars 8. One end away from the second metal plate 6 is screwed to one side of the second metal mesh 24. Two lightning rod bodies 18 are respectively provided on both sides of the upper surface of the second metal pole plate 6, one side of the lightning rod body 18 is connected with a ground wire 9, and the joint of the ground wire 9 is introduced into the ground. Through the above settings, When the lightning strikes the lightning rod body 18, the grounding wire 9 can lead the lightning to the ground, and the current is introduced into the ground in time, which improves the impact strength of the transformer against lightning. Both sides of the inner wall of the box body 1 and the top of the inner wall are bonded with insulating plates 2 , and the bottom of the inner wall of the box body 1 is bonded with a moisture absorption plate 21 . To a certain insulation effect, buffer or reduce the lightning current to contact the transformer body 22 . Both inner walls of the box body 1 are screwed with a cooling fan 12 , one end of the cooling fan 12 is connected with an exhaust pipe 13 , and one end of the exhaust pipe 13 away from the cooling fan 12 penetrates through one end of the box body 1 . A filter screen 14 is arranged inside the end of the exhaust pipe 13 away from the cooling fan 12, and the heat of the transformer body 22 inside the box 1 is dissipated through the cooling fan 12. The cooling fan 12 and the through hole 23 cooperate to make the box The air in the body 1 circulates and flows, and the end of the exhaust pipe 13 located outside the box body 1 faces the ground, which can prevent rainwater from entering the cooling fan 12 from the exhaust pipe 13, which is harmful to the cooling fan 12 and the transformer body in the box body 1. 22 to cause damage. Two fixing pieces 16 are fixedly connected to both sides of the lightning rod body 18 , and bolts 17 are threadedly connected inside the fixing pieces 16 . 6. Through the above arrangement, the two fixing parts 16 clamp the lightning rod body 18, and are fixed with the second metal plate 6 by the bolts 17, so as to prevent the lightning rod body 18 from being used for a long time, resulting in unstable safety, and can The second metal plate 6 is fixed. The baffles 11 are attached to both ends of the second ceramic plate 25 , and the bottom of the baffle 11 close to the second ceramic plate 25 is screwed to the upper surface of the first ceramic plate 3 . The shape of the baffle 11 away from the second ceramic plate 25 is curved. Through the above arrangement, the baffle 11 forms a rain cover, which can prevent rainwater from directly falling on the box 1, thereby ensuring the safe operation of the transformer. Improve the lightning protection function of the transformer. Two bases 19 are welded symmetrically to each other on both sides of the bottom of the transformer body 22 , a fixing plate 28 is welded on both sides of the inner wall of the box body 1 close to the base 19 , and the sides of the two bases 19 are far from the transformer body 22 Running through the interior of the fixing plate 28, one side of the lower surface of the base 19 is fixedly connected to the upper surface of the moisture absorbing plate 21. Through the above arrangement, the base 19 is used to isolate the transformer body 22 from direct contact with the bottom of the box body 1, and through the The function of the through hole 23 makes the air flow in the space between the box body 1 and the fixed plate 28 , and the moisture absorption plate 21 can absorb the moisture at the connection between the box body 1 and the base 19 , reducing the bottom of the box body 1 . The humidity keeps the transformer body 22 dry and improves the lightning protection effect of the transformer body 22 . The upper surface of the fixing plate 28 is provided with through holes 23 equidistantly distributed, and the interior of the through holes 23 are provided with grids 20 . The grid 20 prevents dust from entering the transformer body 22 in the box 1 from the through hole 23 . The lower surface of the second ceramic plate 25 is bonded with an insulating rubber sheet 27, and the lower surface of the insulating rubber sheet 27 is fixedly connected with a support column 26, and one end of the support column 26 away from the insulating rubber sheet 27 is fixedly connected to the first On the upper surface of the first ceramic plate 3, through the above arrangement, the two support columns 26 respectively support the two sides of the second ceramic plate 25, and the lower surface of the second ceramic plate 25 is provided with insulating rubber sheets 27, which play a certain insulating role. , to avoid conduction, and the cooperation of the second ceramic plate 25 and the insulating rubber sheet 27 enhances the protection of the second ceramic plate 25, buffers or reduces the contact of the lightning current to the transformer body 22, and avoids damage to the transformer body 22.

In addition, the present invention also provides: an installation method of an outdoor transformer lightning protection device for power engineering, comprising the following steps:

S1. First, install both sides of the second ceramic plate on the first ceramic plate, then support the support plate through the baffle plate, and fix the second metal mesh and the first metal plate on the support plate, so that the first metal The bottom of the pole plate is attached to the top of the second ceramic plate, and the arc length of the first ceramic plate accounts for 1/3 of the circumference;

S2. Fix the two first conductive pillars and the second conductive pillars on the first metal plate, and connect the bottom of the second conductive pillar with the second metal mesh, and the top of the first conductive pillar and the second conductive pillar pass through The first metal mesh is connected with the second metal pole plate, the gap distance between the first metal pole plate and the second metal pole plate is 10cm, the distance between the two first conductive columns is 11cm, and the first conductive column and the second metal pole plate are separated by 10cm. The distance between the two conductive pillars is 13cm;

S3. Connect the lightning rod body to the second metal plate through the fixing piece, and connect the ground wire, and finally connect the ground wire to the ground, and the distance between the two lightning rod bodies is 33cm.

Working principle or structural principle, when using, firstly, when the lightning strikes the lightning rod body 18, the grounding wire 9 can lead the lightning to the ground, and the current is introduced into the ground in time, which improves the impact strength of the transformer against lightning, through the second metal plate 6 , the current contact area is increased, and by setting two first conductive columns 7 and second conductive columns 8, the current is collected and introduced to the first metal plate 4, which improves the effect of collecting lightning current. During the process, the leakage of current is prevented by the first metal mesh 5, and the second conductive column 8 will be connected to the second metal mesh 24. The second conductive column 8 and the first conductive column 7 form twice the collection buffer for lightning current. And to prevent the current from leaking out, and then through the cooperation of the second ceramic plate 25 and the insulating rubber sheet 27, the collected current is gradually reduced to achieve the effect of current buffering, and the current is blocked again by the first ceramic plate 3, which effectively reduces the Lightning current.

Example 3

1-5, the present invention provides a technical solution: an outdoor transformer lightning protection device for electric power engineering, comprising a box body 1, the upper surface of the box body 1 is screwed with a first ceramic plate 3, and the first ceramic plate 3 is screwed on the upper surface of the box body 1. A second ceramic plate 25 is fixedly connected to the upper surface of a ceramic plate 3 , and a first metal electrode plate 4 is disposed on the side of the second ceramic plate 25 away from the box 1 . The upper surface of the first metal electrode plate 4 Two first conductive pillars 7 are provided, both ends of the first metal pole plate 4 are screwed with support plates 29, and the two support plates 29 are welded with the first metal pole plate 4 on one side away from the first metal pole plate 4. Two metal meshes 24, one side of the two second metal meshes 24 away from the support plate 29 is screwed to the outer wall of the second ceramic plate 25, the upper part of the first metal pole plate 4 is provided with a first metal mesh 5, One end of the two first conductive columns 7 away from the first metal plate 4 penetrates through the interior of the first metal mesh 5, and one end of the top of the first conductive column 7 is screwed with the second metal plate 6. Second conductive pillars 8 are screwed on both sides of the two metal electrode plates 6 . The second conductive pillars 8 run through the first metal mesh 5 and the first metal electrode plate 4 in sequence from top to bottom. The second conductive pillars 8. One end away from the second metal plate 6 is screwed to one side of the second metal mesh 24. Two lightning rod bodies 18 are respectively provided on both sides of the upper surface of the second metal pole plate 6, one side of the lightning rod body 18 is connected with a ground wire 9, and the joint of the ground wire 9 is introduced into the ground. Through the above settings, When the lightning strikes the lightning rod body 18, the grounding wire 9 can lead the lightning to the ground, and the current is introduced into the ground in time, which improves the impact strength of the transformer against lightning. Both sides of the inner wall of the box body 1 and the top of the inner wall are bonded with insulating plates 2 , and the bottom of the inner wall of the box body 1 is bonded with a moisture absorption plate 21 . To a certain insulation effect, buffer or reduce the lightning current to contact the transformer body 22 . Both inner walls of the box body 1 are screwed with a cooling fan 12 , one end of the cooling fan 12 is connected with an exhaust pipe 13 , and one end of the exhaust pipe 13 away from the cooling fan 12 penetrates through one end of the box body 1 . A filter screen 14 is arranged inside the end of the exhaust pipe 13 away from the cooling fan 12, and the heat of the transformer body 22 inside the box 1 is dissipated through the cooling fan 12. The cooling fan 12 and the through hole 23 cooperate to make the box The air in the body 1 circulates and flows, and the end of the exhaust pipe 13 located outside the box body 1 faces the ground, which can prevent rainwater from entering the cooling fan 12 from the exhaust pipe 13, which is harmful to the cooling fan 12 and the transformer body in the box body 1. 22 to cause damage. Two fixing pieces 16 are fixedly connected to both sides of the lightning rod body 18 , and bolts 17 are threadedly connected inside the fixing pieces 16 . 6. Through the above arrangement, the two fixing parts 16 clamp the lightning rod body 18, and are fixed with the second metal plate 6 by the bolts 17, so as to prevent the lightning rod body 18 from being used for a long time, resulting in unstable safety, and can The second metal plate 6 is fixed. The baffles 11 are attached to both ends of the second ceramic plate 25 , and the bottom of the baffle 11 close to the second ceramic plate 25 is screwed to the upper surface of the first ceramic plate 3 . The shape of the baffle 11 away from the second ceramic plate 25 is curved. Through the above arrangement, the baffle 11 forms a rain cover, which can prevent rainwater from directly falling on the box 1, thereby ensuring the safe operation of the transformer. Improve the lightning protection function of the transformer. Two bases 19 are welded symmetrically to each other on both sides of the bottom of the transformer body 22 , a fixing plate 28 is welded on both sides of the inner wall of the box body 1 close to the base 19 , and the sides of the two bases 19 are far from the transformer body 22 Running through the interior of the fixing plate 28, one side of the lower surface of the base 19 is fixedly connected to the upper surface of the moisture absorbing plate 21. Through the above arrangement, the base 19 is used to isolate the transformer body 22 from direct contact with the bottom of the box body 1, and through the The function of the through hole 23 makes the air flow in the space between the box body 1 and the fixed plate 28 , and the moisture absorption plate 21 can absorb the moisture at the connection between the box body 1 and the base 19 , reducing the bottom of the box body 1 . The humidity keeps the transformer body 22 dry and improves the lightning protection effect of the transformer body 22 . The upper surface of the fixing plate 28 is provided with through holes 23 equidistantly distributed, and the interior of the through holes 23 are provided with grids 20 . The grid 20 prevents dust from entering the transformer body 22 in the box 1 from the through hole 23 . The lower surface of the second ceramic plate 25 is bonded with an insulating rubber sheet 27, the lower surface of the insulating rubber sheet 27 is fixedly connected with a support column 26, and the end of the support column 26 away from the insulating rubber sheet 27 is fixedly connected to the first On the upper surface of the first ceramic plate 3, through the above arrangement, the two support columns 26 respectively support the two sides of the second ceramic plate 25, and the lower surface of the second ceramic plate 25 is provided with insulating rubber sheets 27, which play a certain insulating role , to avoid conduction, and the cooperation of the second ceramic plate 25 and the insulating rubber sheet 27 enhances the protection of the second ceramic plate 25, buffers or reduces the contact of lightning current to the transformer body 22, and avoids damage to the transformer body 22.

In addition, the present invention also provides: an installation method of an outdoor transformer lightning protection device for power engineering, comprising the following steps:

S1. First, install both sides of the second ceramic plate on the first ceramic plate, then support the support plate through the baffle plate, and fix the second metal mesh and the first metal plate on the support plate, so that the first metal The bottom of the pole plate is attached to the top of the second ceramic plate, and the arc length of the first ceramic plate accounts for 1/4 of the circumference;

S2. Fix the two first conductive pillars and the second conductive pillars on the first metal plate, and connect the bottom of the second conductive pillar with the second metal mesh, and the top of the first conductive pillar and the second conductive pillar pass through The first metal mesh is connected with the second metal plate, the gap distance between the first metal plate and the second metal plate is 13cm, the distance between the two first conductive columns is 11cm, and the first conductive column is The distance between the two conductive pillars is 15cm;

S3. Connect the lightning rod body to the second metal plate through the fixing piece, and connect the ground wire, and finally connect the ground wire to the ground, and the distance between the two lightning rod bodies is 36cm.

Working principle or structural principle, when using, firstly, when the lightning strikes the lightning rod body 18, the grounding wire 9 can lead the lightning to the ground, and the current is introduced into the ground in time, which improves the impact strength of the transformer against lightning, through the second metal plate 6 , the current contact area is increased, and by setting two first conductive columns 7 and second conductive columns 8, the current is collected and introduced to the first metal plate 4, which improves the effect of collecting lightning current. During the process, the leakage of current is prevented by the first metal mesh 5, and the second conductive column 8 will be connected to the second metal mesh 24. The second conductive column 8 and the first conductive column 7 form twice the collection buffer for lightning current. And to prevent the current from leaking out, and then through the cooperation of the second ceramic plate 25 and the insulating rubber sheet 27, the collected current is gradually reduced to achieve the effect of current buffering, and the current is blocked again by the first ceramic plate 3, which effectively reduces the Lightning current.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides an outdoor transformer lightning arrester for power engineering, includes box (1), its characterized in that: the upper surface screw connection of box (1) has first ceramic plate (3), the last fixed surface of first ceramic plate (3) is connected with second ceramic plate (25), one side that box (1) was kept away from in second ceramic plate (25) is provided with first metal polar plate (4), the upper surface of first metal polar plate (4) is provided with two first electrically conductive posts (7), the equal screw connection in both ends of first metal polar plate (4) has backup pad (29), two one side that first metal polar plate (4) were kept away from in backup pad (29) has all welded second metal mesh (24), two one side screw connection that backup pad (29) were kept away from in second metal mesh (24) is in the outer wall of second ceramic plate (25), the upper portion of first metal polar plate (4) is provided with first metal mesh (5), two the one end that first metal polar plate (4) were kept away from in first electrically conductive post (7) runs through in the inside of first metal mesh (5), first lead electrical pillar (7) top one end screwed connection to have second metal polar plate (6), the both sides screwed connection of second metal polar plate (6) has the second to lead electrical pillar (8), the second leads electrical pillar (8) from the top down and runs through in first metal mesh (5) and first metal polar plate (4) in proper order, the second leads electrical pillar (8) to keep away from one end screwed connection in one side of second metal mesh (24) of second metal polar plate (6).

2. An outdoor transformer arrester for power engineering according to claim 1, characterized in that: two lightning rod bodies (18) are respectively arranged on two sides of the upper surface of the second metal polar plate (6), one side of each lightning rod body (18) is connected with a grounding wire (9), and a joint of each grounding wire (9) is led into the ground.

3. An outdoor transformer arrester for power engineering according to claim 1, characterized in that: insulation plates (2) are bonded to two sides of the inner wall of the box body (1) and the top of the inner wall, and a moisture absorption plate (21) is bonded to the bottom of the inner wall of the box body (1).

4. An outdoor transformer arrester for power engineering according to claim 1, characterized in that: the equal screwed connection of both sides inner wall of box (1) has heat dissipation fan (12), the one end intercommunication of heat dissipation fan (12) has blast pipe (13), the one end that heat dissipation fan (12) were kept away from in blast pipe (13) runs through in one side of box (1), the inside filter screen (14) that is provided with of one end that heat dissipation fan (12) were kept away from in blast pipe (13).

5. An outdoor transformer arrester for power engineering according to claim 1, characterized in that: the lightning rod is characterized in that two fixing pieces (16) are fixedly connected to two sides of the lightning rod body (18), a bolt (17) is connected to the inner threads of the fixing pieces (16), and the bolt (17) penetrates through the fixing pieces (16) and the second metal pole plate (6) from top to bottom in sequence.

6. An outdoor transformer arrester for power engineering according to claim 1, characterized in that: the laminating of the both ends of second ceramic plate (25) is connected with baffle (11), one side bottom screw connection that is close to second ceramic plate (25) of baffle (11) is in upper surface one side of first ceramic plate (3), the shape that second ceramic plate (25) one side was kept away from in baffle (11) is crooked form setting.

7. An outdoor transformer arrester for power engineering according to claim 1, characterized in that: the mutual symmetrical welding in bottom both sides of transformer body (22) has two bases (19), the inner wall both sides welding that box (1) is close to base (19) has fixed plate (28), two one side of keeping away from transformer body (22) of base (19) runs through in the inside of fixed plate (28), one side fixed connection of base (19) lower surface is in the upper surface of moisture absorption plate (21).

8. An outdoor transformer arrester for power engineering according to claim 7, characterized in that: through-hole (23) that the equidistance distributes are seted up to the upper surface of fixed plate (28), the inside of through-hole (23) all is provided with grid (20).

9. An outdoor transformer arrester for power engineering according to claim 1, characterized in that: the lower surface of second ceramic plate (25) bonds there is insulating rubber piece (27), the lower fixed surface of insulating rubber piece (27) is connected with support column (26), the one end fixed connection in the upper surface of first ceramic plate (3) of insulating rubber piece (27) is kept away from in support column (26).

10. A method of installing an outdoor transformer arrester for power engineering according to any of claims 1-9, characterized in that: the method comprises the following steps:

s1, firstly, mounting two sides of a second ceramic plate on a first ceramic plate, then supporting a supporting plate through a baffle plate, fixing a second metal net and a first metal polar plate on the supporting plate, enabling the bottom of the first metal polar plate to be attached to the top of the second ceramic plate, and enabling the arc length of the first ceramic plate to be 1/3-1/4 of the circumference length;

s2, fixing the two first conductive columns and the second conductive column on the first metal polar plate, and enabling the bottom of the second conductive column to be connected with the second metal mesh, wherein the tops of the first conductive columns and the second conductive column are connected with the second metal polar plate through the first metal mesh, the gap distance between the first metal polar plate and the second metal polar plate is 7-15cm, the distance between the two first conductive columns is 6-12cm, and the distance between the first conductive columns and the second conductive column is 9-15 cm;

and S3, connecting the lightning rod bodies to the second metal pole plate through fixing pieces, connecting the lightning rod bodies to the ground wire, and finally connecting the ground wire to the ground, wherein the distance between the two lightning rod bodies is 28-42 cm.

Images