CN114242383A - Distribution transformer with built-in lightning arrester - Google Patents
Distribution transformer with built-in lightning arrester Download PDFInfo
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- CN114242383A CN114242383A CN202111497961.4A CN202111497961A CN114242383A CN 114242383 A CN114242383 A CN 114242383A CN 202111497961 A CN202111497961 A CN 202111497961A CN 114242383 A CN114242383 A CN 114242383A
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- 238000004804 winding Methods 0.000 claims abstract description 33
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 238000009434 installation Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000003071 parasitic effect Effects 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
本发明提供一种内置避雷器的配电变压器，涉及变电箱技术领域，包括变压器箱体，变压器箱体的底面周围设有底框，变压器箱体的内部靠近顶面处连接有顶板，顶板的顶面固定连接有高压外套管和低压外套管，高压外套管和低压外套管位于顶板的内侧连接有高压内套管和低压内套管，通过电机控制变压器箱体下降，可以实现将变压器的内部电气元件进行维护和安装，避免了当避雷器发生故障导致导线失效损坏后，需要换整台变压器的情况，采用滑杆方式将高压内套管与低压内套管分别与高压绕组和低压绕组之间进行连接，通过滑杆调节导电环的位置，使得导电环与高压绕组和低压绕组之间的距离变小，进一步减小了导线的长度，降低了电压差，减小了安全隐患。
The invention provides a distribution transformer with a built-in lightning arrester, which relates to the technical field of substations, and includes a transformer box. A bottom frame is arranged around the bottom surface of the transformer box, and a top plate is connected inside the transformer box near the top surface. The top surface is fixedly connected with a high-voltage outer bushing and a low-voltage outer bushing. The high-voltage outer bushing and the low-voltage outer bushing are located on the inner side of the top plate and are connected with a high-voltage inner bushing and a low-voltage inner bushing. The maintenance and installation of electrical components avoids the need to replace the entire transformer when the arrester fails and leads to failure and damage to the wires. The high-voltage inner bushing and the low-voltage inner bushing are separated from the high-voltage winding and the low-voltage winding by the sliding rod method. To connect, adjust the position of the conductive ring through the sliding rod, so that the distance between the conductive ring and the high-voltage winding and the low-voltage winding becomes smaller, which further reduces the length of the wire, reduces the voltage difference, and reduces the potential safety hazard.
Description
Technical Field
The invention belongs to the technical field of power transformation boxes, and particularly relates to a distribution transformer with a built-in lightning arrester.
Background
At present, a distribution transformer is one of main devices of a distribution network and is responsible for reducing a 10kV-35kV power supply to 0.4kV and then delivering the power supply to residents, general industry and commerce, agriculture and other users for use, the operation safety of the distribution transformer plays an important role in guaranteeing power supply, most of the distribution transformers in China are laid outdoors along a line corridor, a pole-frame type installation mode is mainly adopted, namely the distribution transformer is installed on a rack (called a transformer platform) on a line pole, a small part of the distribution transformer adopts a pier type and a floor type installation mode, a lead wire T is connected with a lead wire and input into a high-voltage end of the distribution transformer, due to the existence of lightning overvoltage, the existing national standard GB/T50064-, the installation position of the cable-connecting device is close to the outgoing line sleeve of the distribution transformer as far as possible on the premise of meeting the electrical insulation distance.
At present, the insulation safety of the inlet and outlet bushing of the transformer is mainly ensured by installing an air-insulated composite outer-sleeve arrester or a porcelain outer-sleeve arrester and an arrester soaked in a transformer oil tank, because of space problems, most of the air-insulated arresters for the transformer are connected to the inlet end of a high-voltage wire or a bushing through a wire or a busbar, the safety operation of the transformer is endangered once the arrester soaked in the transformer oil tank fails, because most of the transformers are of an integrated structure, the whole transformer has to be replaced, so that huge loss is caused, because the wire or the busbar has parasitic inductance, current flowing through the arrester can also flow through the wire or the busbar when the arrester acts, and the current can generate voltage difference at two ends of the wire or the busbar under the damping action of the parasitic inductance, and the voltage difference is larger as the wire or the busbar is longer.
According to chinese patent No. CN108878123B, a distribution transformer with a built-in lightning arrester comprises: the lightning protection device comprises a transformer body and a lightning protection unit, wherein the lightning protection unit is arranged inside the transformer body; the transformer is characterized in that the lightning arrester is arranged inside the transformer body, and the outer side of the lightning arrester is filled with insulating oil medium, so that compared with the air medium insulation performance when the lightning arrester is placed outside the transformer body, the lightning arrester is connected with the high-voltage side sleeve and the low-voltage side sleeve in parallel, when the distribution transformer is subjected to lightning invasion overvoltage, the overvoltage amplitude can be effectively inhibited, the length of the connecting wire is reduced, the lightning arrester has a better effect of limiting the lightning invasion overvoltage of the steep-front lightning, and the transformer is effectively prevented from being damaged by lightning.
The technical scheme that above-mentioned patent document provided is because the arrester respectively with high when using, low pressure side sleeve pipe is connected in parallel nearby, and parallelly connected mode is for connecting through the wire, break down when the arrester and lead to the wire inefficacy to damage the back, can only change the arrester, there is insulating oil transformer inside, can't in time maintain the change wire to the transformer, and because the inside electric elements position of transformer is not adjustable, the length that leads to the wire is longer, there is parasitic inductance between the wire, the wire is longer, the voltage difference is big more, bury down hidden danger for transformer safe operation.
Disclosure of Invention
Solves the technical problem
Aiming at the defects of the prior art, the invention provides a distribution transformer with a built-in lightning arrester, which solves the problems that the wires cannot be maintained and replaced in time, parasitic inductance exists between the wires, the longer the wire is, the larger the voltage difference is, and hidden danger is buried in the safe operation of the transformer.
Technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a distribution transformer with a built-in lightning arrester comprises a transformer box body, wherein a bottom frame is arranged around the bottom surface of the transformer box body, a top plate is connected to the position, close to the top surface, inside the transformer box body, a high-voltage outer sleeve and a low-voltage outer sleeve are fixedly connected to the top surface of the top plate, the high-voltage outer sleeve and the low-voltage outer sleeve are positioned on the inner side of the top plate and are connected with a high-voltage inner sleeve and a low-voltage inner sleeve, a high-voltage lightning arrester and a low-voltage lightning arrester are respectively arranged on two sides of the bottom surface of the top plate, a bottom plate is fixedly connected to the bottom surface of the supporting rod, an iron core is fixedly connected to the middle position of the top surface of the bottom plate, a low-voltage winding is arranged on the outer side of the iron core, a high-voltage winding is arranged on the outer side of the low-voltage winding, motors are arranged on two sides, on the top surface of the bottom frame, and output ends of the motors are connected with a rotating shaft, the side wall of the rotating shaft is fixedly connected with a limiting gear roller, the bottom surface of the top plate is located on two sides of the high-pressure inner sleeve and the low-pressure inner sleeve and is respectively fixedly connected with a connecting rod, the bottom surface of the connecting rod is located on two sides of the iron core and is respectively fixedly connected with a sliding rod, and the side wall of the sliding rod is connected with a conducting ring.
Preferably, the bottom surface of roof is located the equal fixedly connected with protection network in the outside of high-voltage arrester and low-voltage arrester, the equal fixedly connected with mounting panel in bottom surface of protection network, through leading electrical drainage fixed connection between mounting panel and the close high-voltage interior sleeve pipe, the low pressure interior sleeve pipe, and through threaded connection between protection network and the roof.
Preferably, the bottom of the high-voltage inner sleeve is provided with two conducting rings on the side wall of the slide rod, the two conducting rings are connected with each other, and the two conducting rings are electrically connected with the high-voltage winding and the high-voltage inner sleeve through conducting wires respectively.
Preferably, the bottom of the low-voltage inner sleeve is provided with two conducting rings on the side wall of the slide rod, the two conducting rings are connected with each other, and the two conducting rings are electrically connected with the low-voltage winding and the low-voltage inner sleeve through conducting wires respectively.
Preferably, the high-voltage inner sleeve, the low-voltage inner sleeve and the conductive bar are connected through bolts, and the high-voltage arrester, the low-voltage arrester and the mounting plate and the conductive bar are connected through bolts.
Preferably, the bottom surface edge fixedly connected with curb plate of roof, the inner wall of transformer box has seted up the seal groove near top surface department.
Preferably, a through hole matched with the transformer box body is formed in the center of the surface of the bottom frame, a limit toothed plate is fixedly connected to one side, close to the limit gear roller, of the transformer box body, the limit toothed plate is meshed with the limit gear roller, and a bearing seat is connected to one end, far away from the motor, of the rotating shaft.
Preferably, the top surface of the top plate is fixedly connected with hanging rings at two sides of the high-pressure outer sleeve and the low-pressure outer sleeve, and the hanging rings are welded and fixed with the top surface of the top plate.
Preferably, the iron core is fixedly connected with the bottom plate through a clamp.
Advantageous effects
The invention provides a distribution transformer with a built-in lightning arrester. The method has the following beneficial effects:
1. according to the invention, the motor controls the limit gear roller to rotate, the ascending and descending of the transformer box body are controlled, the top plate is fixedly hoisted through the hoisting ring, when the transformer fails, the transformer box body is controlled to descend through the motor, so that the maintenance and installation of internal electrical elements of the transformer can be realized, and the situation that the whole transformer has to be replaced after a lead is failed and damaged due to the failure of a lightning arrester is avoided.
2. According to the invention, the high-voltage inner sleeve and the low-voltage inner sleeve are respectively connected with the high-voltage winding and the low-voltage winding in a sliding rod mode, and the position of the conducting ring is adjusted through the sliding rod, so that the distance between the conducting ring and the high-voltage winding and the low-voltage winding is reduced, the length of a wire is further reduced, the voltage difference is reduced, and the potential safety hazard is reduced.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the internal high pressure side configuration of the present invention;
FIG. 3 is a schematic view of the internal low pressure side configuration of the present invention;
FIG. 4 is a schematic view of the internal structure of the present invention;
fig. 5 is a schematic structural diagram of a transformer tank of the present invention.
Wherein: 1. a transformer tank body; 2. a bottom frame; 3. a top plate; 4. a high pressure outer sleeve; 5. a low pressure outer sleeve; 6. an iron core; 7. a high voltage winding; 8. a low voltage winding; 9. a base plate; 10. a clamp; 11. a support bar; 12. a connecting rod; 13. a slide bar; 14. conducting rings; 15. a protective net; 16. a high pressure inner sleeve; 17. mounting a plate; 18. a conductive bar; 19. a low pressure inner sleeve; 20. a motor; 21. a rotating shaft; 22. a limit gear roller; 23. a bearing seat; 24. a low voltage arrester; 25. a high voltage arrester; 26. a sealing groove; 27. a side plate; 28. a hoisting ring; 29. a limit toothed plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1 to 4, a distribution transformer with a built-in arrester comprises a transformer box 1, a bottom frame 2 is arranged around the bottom surface of the transformer box 1, a top plate 3 is connected to the portion, close to the top surface, inside the transformer box 1, a high-voltage outer sleeve 4 and a low-voltage outer sleeve 5 are fixedly connected to the top surface of the top plate 3, a high-voltage inner sleeve 16 and a low-voltage inner sleeve 19 are connected to the inner sides of the top plate 3, of the high-voltage outer sleeve 4 and the low-voltage outer sleeve 5, a high-voltage arrester 25 and a low-voltage arrester 24 are respectively arranged on two sides of the high-voltage inner sleeve 16 and the low-voltage inner sleeve 19, support rods 11 are fixedly connected to two sides of the bottom surface of the top plate 3, a bottom plate 9 is fixedly connected to the bottom surface of the bottom plate 9, an iron core 6 is fixedly connected to the center of the top surface of the bottom plate 9, a low-voltage winding 8 is arranged on the outer side of the iron core 6, a high-voltage winding 7 is arranged on the outer side of the low-voltage winding 8, motors 20 are arranged on two sides of the bottom frame 2, the output end of the motor 20 is connected with a rotating shaft 21, the side wall of the rotating shaft 21 is fixedly connected with a limit gear roller 22, a through hole matched with the transformer box 1 is formed in the center of the surface of the bottom frame 2, one side of the transformer box 1 close to the limit gear roller 22 is fixedly connected with a limit gear plate 29, the limit gear plate 29 is meshed with the limit gear roller 22, one end of the rotating shaft 21 far away from the motor 20 is connected with a bearing seat 23, the bottom surface of the top plate 3 is positioned on two sides of a high-pressure inner sleeve 16 and a low-pressure inner sleeve 19 and is respectively and fixedly connected with a connecting rod 12, the bottom surface of the connecting rod 12 is positioned on two sides of an iron core 6 and is respectively and fixedly connected with a slide bar 13, the side wall of the slide bar 13 is connected with a conducting ring 14, the iron core 6 is fixedly connected with a bottom plate 9 through a clamp 10, the conducting ring 14 is made of copper-nickel alloy, the conducting ring 14 is of a hoop structure, the conducting ring 14 is convenient to adjust and is positioned on the slide bar 13, the connecting rod 12 and the slide bar 13 are made of glass fiber, has good insulating property and higher mechanical strength.
As shown in fig. 2 and 3, the bottom surface of the top plate 3 is located at the outer sides of the high-voltage arrester 25 and the low-voltage arrester 24 and is fixedly connected with a protective screen 15, the bottom surface of the protective screen 15 is fixedly connected with an installation plate 17, the installation plate 17 is fixedly connected with the adjacent high-voltage inner sleeve 16 and the low-voltage inner sleeve 19 through a conductive bar 18, the protective screen 15 is in threaded connection with the top plate 3, the high-voltage inner sleeve 16 and the low-voltage inner sleeve 19 are in bolted connection with the conductive bar 18, and the high-voltage arrester 25 and the low-voltage arrester 24 are in bolted connection with the installation plate 17 and the conductive bar 18, when the high-voltage arrester 25 and the low-voltage arrester 24 fail, electrical components are convenient to disassemble, assemble and maintain, the installation plate 17 is fixedly connected with the adjacent high-voltage inner sleeve 16 and the adjacent low-voltage inner sleeve 19 through the conductive bar 18, the high-voltage arrester 25 and the low-voltage arrester 24 are respectively connected with the high-voltage inner sleeve 16 and the low-voltage inner sleeve 19 nearby, the length of the conductive bar 18 is short, which can effectively reduce parasitic inductance.
As shown in fig. 2, 3 and 4, the bottom of the high-voltage inner tube 16, which is located on the side wall of the sliding rod 13, is provided with two conducting rings 14, the two conducting rings 14 are connected with each other, the two conducting rings 14 are electrically connected with the high-voltage winding 7 and the high-voltage inner tube 16 through conducting wires, the conducting rings 14 are in a hoop structure, which not only facilitates adjusting the conducting rings 14, which are located on the sliding rod 13, but also facilitates adjusting the conducting rings 14, and the hoop structure, when the conducting rings 14 are tightened, can clamp and connect the wire ends of the conducting wires, so that the distance between the conducting rings 14 and the high-voltage winding 7 and the low-voltage winding 8 is reduced, further reduces the length of the conducting wires, reduces the voltage difference and the potential safety hazard, the bottom of the low-voltage inner tube 19, which is located on the side wall of the sliding rod 13, is provided with the two conducting rings 14, and the two conducting rings 14 are connected with each other, and the two conducting rings 14 are electrically connected with the low-voltage winding 8 and the low-voltage inner tube 19 through conducting wires, the distance between the conducting ring 14 and the high-voltage winding 7 and the low-voltage winding 8 is reduced, the length of the conducting wire is further reduced, the voltage difference is reduced, and the potential safety hazard is reduced.
As shown in fig. 2, 3, 4 and 5, a side plate 27 is fixedly connected to the edge of the bottom surface of the top plate 3, a sealing groove 26 is formed in the inner wall of the transformer tank 1 near the top surface, the depth of the sealing groove 26 is smaller than the height of the side plate 27, the width of the sealing groove 26 is larger than the thickness of the side plate 27, and after the top plate 3 is connected with the transformer tank 1, a small amount of transformer insulating oil is filled in the sealing groove 26, so that the top plate 3 and the transformer tank 1 can be effectively sealed.
As shown in fig. 1, the top surface of the top plate 3 is fixedly connected with hanging rings 28 at two sides of the high-pressure outer sleeve 4 and the low-pressure outer sleeve 5, the hanging rings 28 are welded and fixed with the top surface of the top plate 3, the top plate 3 can be hung through the hanging rings 28, the top plate 3 and the transformer box 1 are conveniently separated, and the top plate 3 and the transformer box 1 are connected through bolts.
The second embodiment is as follows:
the limiting gear roller 22 is connected with the limiting gear plate 29 in a meshing manner, the motor 20 controls the limiting gear roller 22 to rotate, the transformer box 1 is controlled to ascend and descend, the top plate 3 is fixedly hoisted by connecting the hoisting rings 28 through the traction device, the outer side of the bottom frame 2 is fixedly connected with the power transmission pole, when the transformer fails, the transformer box 1 is controlled to descend through the motor 20, so that the top plate 3 is separated from the transformer box 1, transformer insulating oil is stored in the transformer box 1, meanwhile, the top plate 3 drives the electrical elements to ascend, maintenance and installation of the internal electrical elements of the transformer can be realized, the situation that the whole transformer has to be replaced after a lead fails and is damaged due to the failure of the lightning arrester is avoided, the high-pressure inner sleeve 16 and the low-pressure inner sleeve 19 are respectively connected with the high-pressure winding 7 and the low-pressure winding 8 by adjusting the position of the conducting ring 14 on the sliding rod 13 is avoided, the conducting ring 14 is adjusted to be located at the position of the sliding rod 13, so that the conducting ring 14 is connected with the high-voltage winding 7 and the low-voltage winding 8 through the conducting wires in a shorter distance, the length of the conducting wires is further reduced, the voltage difference is reduced, and the potential safety hazard is reduced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a distribution transformer of built-in arrester, includes transformer box (1), its characterized in that: the transformer box is characterized in that a bottom frame (2) is arranged on the periphery of the bottom surface of the transformer box body (1), a top plate (3) is connected to the position, close to the top surface, inside the transformer box body (1), a high-voltage outer sleeve (4) and a low-voltage outer sleeve (5) are fixedly connected to the top surface, the inner sides, located on the top plate (3), of the high-voltage outer sleeve (4) and the low-voltage outer sleeve (5) are connected with a high-voltage inner sleeve (16) and a low-voltage inner sleeve (19), a high-voltage arrester (25) and a low-voltage arrester (24) are respectively arranged on the two sides of the high-voltage inner sleeve (16) and the low-voltage inner sleeve (19), supporting rods (11) are fixedly connected to the two sides of the bottom surface of the top plate (3), a bottom plate (9) is fixedly connected to the bottom surface of the bottom plate (9), an iron core (6) is fixedly connected to the center of the top surface of the bottom plate (9), and a low-voltage winding (8) is arranged on the outer side of the iron core (6), the outside of low voltage winding (8) is equipped with high voltage winding (7), the both sides that the top surface of underframe (2) is located transformer box (1) all are equipped with motor (20), the output of motor (20) is connected with pivot (21), the lateral wall fixedly connected with spacing gear roll (22) of pivot (21), the both sides that the bottom surface of roof (3) is located interior sleeve pipe (16) of high pressure and interior sleeve pipe (19) of low pressure are fixedly connected with connecting rod (12) respectively, the both sides difference fixedly connected with slide bar (13) that the bottom surface of connecting rod (12) is located iron core (6), the lateral wall of slide bar (13) is connected with conducting ring (14).
2. The distribution transformer with built-in arrester of claim 1, characterized in that: the bottom surface of roof (3) is located the equal fixedly connected with protection network (15) in the outside of high voltage arrester (25) and low voltage arrester (24), the equal fixedly connected with mounting panel (17) in bottom surface of protection network (15), through electrically conductive row (18) fixed connection between sleeve pipe (16), the low pressure sleeve pipe (19) in mounting panel (17) and the high pressure that is close, and pass through threaded connection between protection network (15) and roof (3).
3. The distribution transformer with built-in arrester as claimed in claim 2, wherein: the bottom of the high-voltage inner sleeve (16) is provided with two conducting rings (14) on the side wall of the sliding rod (13), the two conducting rings (14) are connected with each other, and the two conducting rings (14) are electrically connected with the high-voltage winding (7) and the high-voltage inner sleeve (16) through conducting wires respectively.
4. The distribution transformer with built-in arrester of claim 1, characterized in that: the bottom of the low-voltage inner sleeve (19) is provided with two conducting rings (14) on the side wall of the sliding rod (13), the two conducting rings (14) are connected with each other, and the two conducting rings (14) are electrically connected with the low-voltage winding (8) and the low-voltage inner sleeve (19) through conducting wires respectively.
5. The distribution transformer with built-in arrester of claim 1, characterized in that: the high-voltage inner sleeve (16), the low-voltage inner sleeve (19) and the conductive bar (18) are connected through bolts, and the high-voltage arrester (25), the low-voltage arrester (24), the mounting plate (17) and the conductive bar (18) are connected through bolts.
6. The distribution transformer with built-in arrester of claim 1, characterized in that: the bottom surface edge fixedly connected with curb plate (27) of roof (3), seal groove (26) have been seted up to the inner wall of transformer box (1) near top surface department.
7. The distribution transformer with built-in arrester of claim 1, characterized in that: the transformer box (1) assorted through-hole has been seted up to the surperficial department in the middle of underframe (2), one side fixedly connected with limit teeth board (29) that transformer box (1) is close to limit teeth kun (22), and meshes between limit teeth board (29) and the limit teeth kun (22) mutually, the one end that motor (20) were kept away from in pivot (21) is connected with bearing frame (23).
8. The distribution transformer with built-in arrester as claimed in claim 2, wherein: the top surface of the top plate (3) is positioned on two sides of the high-pressure outer sleeve (4) and the low-pressure outer sleeve (5) and is fixedly connected with a lifting ring (28), and the lifting ring (28) is fixedly welded with the top surface of the top plate (3).
9. The distribution transformer with built-in arrester of claim 1, characterized in that: the iron core (6) is fixedly connected with the bottom plate (9) through a clamp (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111497961.4A CN114242383A (en) | 2021-12-09 | 2021-12-09 | Distribution transformer with built-in lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111497961.4A CN114242383A (en) | 2021-12-09 | 2021-12-09 | Distribution transformer with built-in lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114242383A true CN114242383A (en) | 2022-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111497961.4A Withdrawn CN114242383A (en) | 2021-12-09 | 2021-12-09 | Distribution transformer with built-in lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114242383A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116316111A (en) * | 2023-03-22 | 2023-06-23 | 国网安徽省电力有限公司六安市城郊供电公司 | A distribution network overvoltage monitoring equipment based on optical fiber information communication |
| CN116488029A (en) * | 2023-05-11 | 2023-07-25 | 深圳市欧欣泰科技有限公司 | Lightning protection device |
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2021
- 2021-12-09 CN CN202111497961.4A patent/CN114242383A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116316111A (en) * | 2023-03-22 | 2023-06-23 | 国网安徽省电力有限公司六安市城郊供电公司 | A distribution network overvoltage monitoring equipment based on optical fiber information communication |
| CN116316111B (en) * | 2023-03-22 | 2023-08-18 | 国网安徽省电力有限公司六安市城郊供电公司 | Power distribution network overvoltage monitoring equipment based on optical fiber information communication |
| CN116488029A (en) * | 2023-05-11 | 2023-07-25 | 深圳市欧欣泰科技有限公司 | Lightning protection device |
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Application publication date: 20220325 |
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