CN212648050U

CN212648050U - Transformer with lightning protection function

Info

Publication number: CN212648050U
Application number: CN202021751275.6U
Authority: CN
Inventors: 李宜平; 伍煌彬; 鲁熳熳; 付勇; 赵建阳; 邓明辉; 王德晶; 邓怡; 邓理桢; 徐世文; 文志龙; 文军翔; 杨磊; 刘梦琳
Original assignee: State Grid Corp of China SGCC; Jingzhou Power Supply Co of State Grid Hubei Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Jingzhou Power Supply Co of State Grid Hubei Electric Power Co Ltd
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2021-03-02
Anticipated expiration: 2030-08-20

Abstract

The utility model discloses a transformer with lightning protection function, which comprises a transformer, a protective shell, supporting legs and first radiating fins, wherein the outer part of the transformer is fixedly connected with the protective shell, the two sides of the bottom end of the protective shell are fixedly connected with the supporting legs, the front end surface and the rear end surface of the protective shell are respectively fixedly connected with the first radiating fins, the two sides of the protective shell are respectively fixedly connected with the second radiating fins, the surfaces of the front end surface and the rear end surface of the protective shell are provided with radiating grids, the bottom of one side surface of the protective shell is provided with a connecting terminal, the two sides of the top of the surfaces of the front end surface and the rear end surface of the protective shell are respectively provided with a buckling block, the top end of the protective shell is fixedly connected with a top plate, the top end of the top plate is fixedly, has high practicability.

Description

Transformer with lightning protection function

Technical Field

The utility model relates to a transformer technical field of lightning protection function specifically is a transformer with lightning protection function.

Background

Along with the rapid development of national economy in China, the demand for electric power is increasing day by day, and as a main device in a power transmission and transformation system, a transformer is also rapidly developed, the transformer is a device which converts voltage and current of one grade into voltage and current of the other grade with the same frequency between two or more coils by utilizing the principle of electromagnetic induction and transmits electric energy, the transformer is mainly installed in the open air, the field or the torpedo area, under the condition of severe weather, the transformer is easy to be struck by lightning, most of the existing transformers are not provided with lightning protection devices, some transformers are provided with lightning protection devices, the performance of its lightning protection device is relatively poor, and lightning protection ability is relatively weak, and when the thunder wave was invaded, the high voltage coil and the low voltage coil of transformer often suffered to damage because electric current in the twinkling of an eye, voltage are too big, cause the power failure accident even, perhaps cause the fire incident because of the thunder and lightning. Therefore, the transformer with the lightning protection function is provided by improving the transformer.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a transformer with lightning protection function, including transformer, protective housing, supporting legs and first fin, the outside fixedly connected with protective housing of transformer, protective housing bottom both sides fixedly connected with supporting legs, terminal surface and the first fin of rear end face difference fixedly connected with before the protective housing, the protective housing both sides are the fixedly connected with second fin respectively, terminal surface and rear end face surface are provided with the heat dissipation grid before the protective housing, protective housing side surface bottom is provided with connecting terminal, terminal surface and rear end face surface top both sides are provided with respectively and detain the piece before the protective housing, protective housing top fixedly connected with roof, the three high-pressure input of roof top fixedly connected with, four low voltage inputs of roof top fixedly connected with.

As a preferred technical scheme of the utility model, roof top four corners fixedly connected with bracing piece, four insulating protection pieces of bracing piece top fixedly connected with.

As a preferred technical scheme of the utility model, the fixed cover of insulating protection piece top fixedly connected with, fixed cover is provided with the internal thread, fixed cover has the lightning rod connecting rod through threaded connection, lightning rod connecting rod top fixedly connected with stainless steel metal ball, stainless steel metal ball top fixedly connected with main lightning rod.

As a preferred technical scheme of the utility model, insulating protection piece top is provided with four mounting grooves, the mounting groove is through the reserve lightning rod of installation ear fixedly connected with.

As a preferred technical scheme of the utility model, the protective housing bottom is provided with the low pressure output, the protective housing bottom is provided with the first wire that falls, and the protective housing bottom is provided with the second wire that falls, the first one end that falls the wire that falls links to each other with the neutral point of low pressure output, and the other end links to each other with main lightning rod, the second falls the one end that the wire that falls and links to each other with protective housing, and the other end links to each other with reserve lightning rod.

As an optimal technical scheme of the utility model, high voltage input and low pressure input all are provided with insulation support, insulation support adopts porcelain system material to make.

As an optimized technical scheme of the utility model, first fin and second fin surface are equipped with heat conduction silicone grease layer.

As a preferred technical scheme of the utility model, reserve lightning rod top height is less than the top height of main lightning rod.

The utility model has the advantages that: through being provided with main lightning rod, reserve lightning rod and insulating protection piece, through fixed cover threaded connection. The lightning protection effect can be carried out for a long time, when the main lightning rod is accidentally damaged, for example, a rod body is broken or a stainless steel metal ball is damaged and cannot be protected from lightning due to lightning stroke damage, temporary lightning protection can be carried out through the spare lightning rod, so that the lightning protection effect of the transformer in a strong wind day is ensured, and the situation that the damage of the transformer caused by lightning stroke directly affects the use of electric appliances is avoided; one end of the first potential reducing wire is connected with a neutral point of the low-voltage output end, the other end of the first potential reducing wire is connected with the main lightning rod, one end of the second potential reducing wire is connected with the transformer protective shell, and the other end of the second potential reducing wire is connected with the standby lightning rod, so that equipment damage caused by lightning stroke can be effectively prevented; first fin and second fin surface are equipped with heat conduction silicone grease layer, through heat conduction silicone grease layer, thermal conductivity obtains very big promotion, the insulating nature on heat conduction silicone grease layer also makes the thunder and lightning be difficult for stopping on the fin and get into the underground rapidly, the top height that highly is less than main lightning rod through reserve lightning rod top, realize daily leading thunder through highly higher main lightning rod and use, when fracture or unable water conservancy diversion appear in main lightning rod, carry out quick water conservancy diversion through reserve lightning rod and use, the improvement is to the protection effect of transformer.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic perspective view of a transformer with a lightning protection function according to the present invention;

fig. 2 is a schematic plan view of a transformer with lightning protection function according to the present invention;

fig. 3 is a schematic view of a partial structure of a transformer with a lightning protection function according to the present invention.

In the figure: 1. a transformer; 2. a protective housing; 3. supporting legs; 4. a first heat sink; 5. a second heat sink; 6. a heat dissipation grid; 7. a connection terminal; 8. buckling blocks; 9. a top plate; 10. a high voltage input; 11. a low voltage input; 12. a support bar; 13. an insulating protector; 14. fixing a sleeve; 15. a lightning rod connecting rod; 16. stainless steel metal balls; 17. a main lightning rod; 18. mounting grooves; 19. a spare lightning rod; 20. a low voltage output terminal; 21. a first potential-lowering wire; 22. and a second potential-lowering wire.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-3, the transformer with lightning protection function of the present invention comprises a transformer 1 and a protective casing 2, supporting legs 3 and

first fin

4, 1 outside fixedly connected with protecting sheathing 2 of transformer, 2 bottom both sides fixedly connected with supporting legs 3 of protecting sheathing, terminal surface and rear end face difference fixedly connected with first fin 4 before protecting

sheathing

2, 2 both sides fixedly connected with second fin 5 respectively of protecting sheathing, terminal surface and rear end face surface are provided with radiator grille 6 before protecting

sheathing

2, 2 side surface bottoms of protecting sheathing are provided with connecting terminal 7, terminal surface and rear end face surface top both sides are provided with respectively before protecting sheathing 2 detains

piece

8, 2 top fixedly connected with roofs 9 of protecting sheathing, the three high-voltage input 10 of roof 9 top fixedly connected with, four low-voltage input 11 of roof 9 top fixedly connected with.

Wherein, roof 9 top four corners fixedly connected with bracing piece 12, four bracing pieces 12 top fixedly connected with insulation protection piece 13 protect the transformer through insulation protection piece.

Wherein, the fixed cover 14 of insulating protection 13 top fixedly connected with, fixed cover 14 is provided with the internal thread, and fixed cover 14 has lightning rod connecting rod 15 through threaded connection, and the top fixedly connected with stainless steel metal ball 16 of lightning rod connecting rod 15, the main lightning rod 17 of 16 top fixedly connected with of stainless steel metal ball are through fixed cover threaded connection. Can perform lightning protection for a long time.

Wherein, insulating protection piece 13 top is provided with four mounting grooves 18, and mounting groove 18 passes through the reserve lightning rod 19 of installation ear fixedly connected with, is appearing that main lightning rod is unexpected impaired, if the body of rod fracture or stainless steel metal ball are impaired because the thunderbolt damages when leading to unable lightning-arrest, the reserve lightning rod of accessible carries out interim lightning-arrest use to guarantee in the strong wind day, the lightning protection effect of transformer avoids the thunderbolt to cause the damage direct influence of transformer to the use of power consumption electrical apparatus.

Wherein, 2 bottoms of protecting sheathing are provided with

low pressure output

20, and 2 bottoms of protecting sheathing are provided with first fall a

trend wire

21, and 2 bottoms of protecting sheathing are provided with the second and fall a trend wire 22, and the one end of first fall a trend wire links to each other with the neutral point of low pressure output, and the other end links to each other with main lightning rod, and the one end that the second falls a trend wire links to each other with protecting sheathing, and the other end links to each other with reserve lightning rod, can effectively prevent the equipment harm that the thunderbolt caused.

Wherein, high-voltage input end and low-voltage input end all are provided with insulation support, and insulation support adopts porcelain system material to make, and porcelain system material has fine electrical insulation.

Wherein,

first fin

4 and 5 surfaces of second fin are equipped with heat conduction silicone grease layer, and through heat conduction silicone grease layer, the heat conductivility obtains very big promotion, and the insulating nature on heat conduction silicone grease layer also makes the thunder and lightning be difficult for stopping on the fin and get into the underground rapidly.

Wherein, the reserve lightning rod 19 top height is less than the top height of main lightning rod 17, realizes that daily high main lightning rod of passing through draws thunder and uses, when main lightning rod fracture appears or unable water conservancy diversion, carries out quick water conservancy diversion through reserve lightning rod and uses, improves the protection effect to the transformer.

In operation, the utility model discloses be provided with main lightning rod 17, reserve lightning rod 19 and insulating protection piece 13, through fixed cover 14 threaded connection. The lightning protection effect can be carried out for a long time, when the main lightning rod 17 is accidentally damaged, for example, a rod body is broken or the stainless steel metal ball 16 is damaged and cannot be protected from lightning due to lightning stroke damage, temporary lightning protection can be carried out through the standby lightning rod 19, so that the lightning protection effect of the transformer 1 in a strong wind day is ensured, and the direct influence of the damage of the transformer 1 caused by lightning stroke on the use of electric appliances is avoided; one end of a first potential reducing wire 21 is connected with a neutral point of a low-voltage output end 20, the other end of the first potential reducing wire is connected with a main lightning rod 17, one end of a second potential reducing wire 22 is connected with the protective shell 2, and the other end of the second potential reducing wire is connected with a standby lightning rod 19, so that equipment damage caused by lightning stroke can be effectively prevented;

first fin

4 and 5 surfaces of second fin are equipped with heat conduction silicone grease layer, through heat conduction silicone grease layer, heat conductivility obtains very big promotion, the insulating nature on heat conduction silicone grease layer also makes the thunder and lightning be difficult for stopping on the fin and get into the underground rapidly, 19 top height through reserve lightning rod is less than main lightning rod 17, realize daily leading thunder through highly higher main lightning rod 17 and use, when fracture appears in main lightning rod 17 or can't the water conservancy diversion, carry out quick water conservancy diversion through reserve lightning rod 19 and use, improve the protection effect to transformer 1.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A transformer with a lightning protection function comprises a transformer (1), a protective shell (2), supporting legs (3) and first radiating fins (4), and is characterized in that the protective shell (2) is fixedly connected to the outside of the transformer (1), the supporting legs (3) are fixedly connected to two sides of the bottom end of the protective shell (2), the first radiating fins (4) are fixedly connected to the front end face and the rear end face of the protective shell (2) respectively, the second radiating fins (5) are fixedly connected to two sides of the protective shell (2) respectively, radiating grids (6) are arranged on the surfaces of the front end face and the rear end face of the protective shell (2), a connecting terminal (7) is arranged at the bottom of one side surface of the protective shell (2), buckling blocks (8) are arranged on two sides of the top of the front end face and the rear end face of the protective shell (2) respectively, and a top plate, roof (9) top fixedly connected with three high pressure input (10), roof (9) top fixedly connected with four low pressure input (11).

2. The transformer with lightning protection function according to claim 1, wherein the top plate (9) has support rods (12) fixedly connected to four corners of the top end thereof, and the four support rods (12) have insulating protection members (13) fixedly connected to top ends thereof.

3. The transformer with lightning protection function according to claim 2, characterized in that a fixing sleeve (14) is fixedly connected to the top of the insulation protection member (13), the fixing sleeve (14) is provided with an internal thread, the fixing sleeve (14) is connected with a lightning rod connecting rod (15) through a thread, a stainless steel metal ball (16) is fixedly connected to the top of the lightning rod connecting rod (15), and a main lightning rod (17) is fixedly connected to the top of the stainless steel metal ball (16).

4. A transformer with lightning protection function according to claim 3, characterized in that the top of the insulation protection member (13) is provided with four mounting slots (18), and the mounting slots (18) are fixedly connected with spare lightning rods (19) through mounting lugs.

5. The transformer with the lightning protection function according to claim 1, wherein a low voltage output end (20) is arranged at the bottom end of the protective shell (2), a first potential reduction wire (21) is arranged at the bottom end of the protective shell (2), a second potential reduction wire (22) is arranged at the bottom end of the protective shell (2), one end of the first potential reduction wire (21) is connected with a neutral point of the low voltage output end (20), the other end of the first potential reduction wire is connected with a main lightning rod, one end of the second potential reduction wire (22) is connected with the protective shell (2), and the other end of the second potential reduction wire is connected with a standby lightning rod.

6. A transformer with lightning protection function according to claim 1, characterized in that the high voltage input (10) and the low voltage input (11) are provided with insulating sleeves made of porcelain material.

7. The transformer with lightning protection function according to claim 1, wherein the first heat sink (4) and the second heat sink (5) are provided with a layer of heat conducting silicone on the outer surface.

8. A transformer with lightning protection function according to claim 4, characterized in that the height of the top of the backup lightning conductor (19) is lower than the height of the top of the main lightning conductor (17).