CN207021128U - A kind of transformer high-voltage bushing - Google Patents
A kind of transformer high-voltage bushing Download PDFInfo
- Publication number
- CN207021128U CN207021128U CN201720567802.XU CN201720567802U CN207021128U CN 207021128 U CN207021128 U CN 207021128U CN 201720567802 U CN201720567802 U CN 201720567802U CN 207021128 U CN207021128 U CN 207021128U
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- CN
- China
- Prior art keywords
- insulator
- air admission
- fan
- guide rod
- cavity
- Prior art date
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Abstract
The utility model discloses a kind of transformer high-voltage bushing, groove is provided with the inner surface of upper insulator, groove forms a toroidal cavity around guide rod, and is provided with a fan in the cavities, opened up in the bottom of upper insulator around its outline by multiple air admission holes, and air admission hole connects with the bottom of cavity；An annulus is offered around its outline on the top of upper insulator, the bottom of annulus is connected by the venthole of multiple vertical direction with cavity；Drier is filled with air admission hole, and filter screen is provided with the opening of air admission hole.The beneficial effects of the utility model：By being internally integrated a fan in upper insulator, air curtain is formed to the outside of bushing, reduce erosion of the objectionable impurities in air to bushing, and the positive pressure environment at bushing inner sealing position can be kept, avoid outside moisture from entering, it is simple in construction, easy to use, heat endurance is good, service life length.
Description
Technical field
It the utility model is related to technical field of transformer equipment, more particularly to a kind of transformer high-voltage bushing.
Background technology
Bushing shell for transformer is the insulating sleeve for guiding to inside transformer high and low pressure lead outside fuel tank, serves not only as drawing
Line insulation against ground, and the effect of anchor leg is responsible for, bushing shell for transformer is one of transformer current carrying element.Transformer station high-voltage side bus
In, pass through load current for a long time；Pass through short circuit current when short-circuit, it is therefore desirable to which there is good heat endurance, existing transformation
Device wall bushing heat endurance is poor, and easily by the erosion of ambient atmosphere inside wall bushing, working long hours causes efficiency low
Under.
Existing transformer is fitted with bushing, and the sealing property of existing bushing is poor, and moisture passes through high pressure
Cannula tip flows into inside transformer, so as to influence the normal use of transformer.Power transformer is caused due to watered and wetting
Insulation fault constantly occur, account for the 20% of insulation fault, electric power netting safe running constituted a threat to.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of transformer high-voltage bushing, so as to solve above-mentioned background
The problem of being mentioned in technology.
The utility model solves above-mentioned technical problem by following technological means：
A kind of transformer high-voltage bushing, including guide rod, lower insulator and upper insulator are arranged with guide rod, is provided with above upper insulator
Porcelain lid, the porcelain side of covering set the first nut and liner, are provided with terminal plate above the first nut, pass through the second nut on terminal plate
On guide rod, seal washer is provided with upper insulator and lower insulator, lower insulator upper and lower side is provided with paper washer, and lower insulator lower end is set
There are clamp nut, lower end of the guide rod connection transformer outlet, it is characterised in that：Groove is provided with the inner surface of insulator on described,
The groove forms a toroidal cavity around guide rod, and a fan is provided with the cavity, the fan by lower suction simultaneously
By upper end outlet；The bottom of insulator is opened up by multiple air admission holes around its outline on described, and the air admission hole and cavity
Bottom connects；An annulus is offered around its outline, the bottom of the annulus passes through multiple vertical on the top of upper insulator
The venthole in direction connects with cavity；Drier is filled with the air admission hole, and filter screen is provided with the opening of air admission hole.
Further, the radial line of the annulus and the angle of horizontal plane are -30 °~+30 °.
Further, bearing is provided with the center of the fan, and the bearing is set on guide rod.
Further, the width of the annulus is gradually reduced from inside to outside.
Further, the fan passes through gear drive and fan by the motor driven that is installed in cavity, the motor
Eccentric gearing is connected, and the power line of the motor is drawn by air admission hole.
The beneficial effects of the utility model：By being internally integrated a fan in upper insulator, to the outside shape of bushing
Into air curtain, erosion of the objectionable impurities in air to bushing is reduced, and bushing inner sealing position can be kept
Positive pressure environment, avoid outside moisture from entering, it is simple in construction, easy to use, heat endurance is good, service life length.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is upper insulator structural representation in the utility model.
Embodiment
The utility model is described in detail below with reference to accompanying drawing：
As shown in Figure 1-2：
A kind of transformer high-voltage bushing, including guide rod 1, are arranged with lower insulator 3 and upper insulator 2 on guide rod 1, on upper insulator 2
Face is provided with porcelain lid 4, and the top of porcelain lid 4 sets the first nut 5 and liner, and the top of the first nut 5 is provided with terminal plate 6, on terminal plate 6
It is arranged on by the second nut 9 on guide rod 1, is provided with seal washer 7 in upper insulator 2 and lower insulator 3, the lower upper and lower side of insulator 3 is provided with
Paper washer 8, the lower lower end of insulator 3 are provided with clamp nut 11, the lower end of guide rod 1 connection transformer outlet 10, on described in insulator 2
Surface is provided with groove, and the groove forms a toroidal cavity 16 around guide rod 1, and is provided with a fan in the cavity 16
14, the fan 14 is by lower suction and by upper end outlet；On described the bottom of insulator 2 around its outline open up by it is multiple enter
Stomata 12, and the air admission hole 12 connects with the bottom of cavity 16；On the top of upper insulator 2 annular is offered around its outline
Seam 13, the bottom of the annulus 13 is connected by the venthole of multiple vertical direction with cavity 16；Filled out in the air admission hole 12
Filter screen is provided with filled with drier 15, and in the opening of air admission hole 12.
So, the fan 14 in cavity 16 is sucked air by air admission hole 12, and air is laggard through the purge drying of drier 15
Entering cavity 16, a dry air part is discharged into annulus 13 by fan 14 by the venthole of vertical direction, then by annulus 13
Uniformly spray and form air curtain, effectively prevent foreign matter from falling on the surface of bushing with the erosion to it；Another drying
Air is then full of the environment at the bad place of sealing effectiveness of bushing, making the inside of bushing keep malleation, can also be right
The moisture flowed down along guide rod 1 is air-dried, and is prevented moisture from entering fuel tank, is influenceed the use of transformer, extend transformer high-voltage
The service life of sleeve pipe.
The radial line of the annulus 13 and the angle of horizontal plane are -30 °~+30 °, so to ensure the protection model of air curtain
Enclose, angle is too big or the too small forming range that can all have influence on air curtain, does not have due protecting effect.
Bearing is provided with the center of the fan 14, and the bearing is set on guide rod 1.
The width of the annulus 13 is gradually reduced from inside to outside.So cause air curtain forming region air velocity compared with
Greatly, protecting effect is improved.
The fan 14 is inclined by gear drive and fan 14 by the motor driven that is installed in cavity 16, the motor
The heart is connected, and the power line of the motor is drawn by air admission hole 12.
By being internally integrated a fan in upper insulator, air curtain is formed to the outside of bushing, reduces having in air
Erosion of the evil impurity to bushing, and the positive pressure environment at bushing inner sealing position can be kept, avoid outside moisture
Into, it is simple in construction, easy to use, heat endurance is good, service life length.
Above example is only to illustrate the technical solution of the utility model and unrestricted, although with reference to preferred embodiment pair
The utility model is described in detail, it will be understood by those within the art that, can be to technology of the present utility model
Scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solutions of the utility model, it all should cover
Among right of the present utility model.
Claims (5)
1. a kind of transformer high-voltage bushing, including guide rod (1), lower insulator (3) and upper insulator (2), upper porcelain are arranged with guide rod (1)
Set (2) is provided with porcelain lid (4) above, and the first nut (5) and liner are set above porcelain lid (4), is provided with and connects above the first nut (5)
Line plate (6), it is arranged on by the second nut (9) on guide rod (1) on terminal plate (6), upper insulator (2) and lower insulator (3) is interior is provided with
Seal washer (7), lower insulator (3) upper and lower side are provided with paper washer (8), and lower insulator (3) lower end is provided with clamp nut (11), guide rod
(1) lower end connection transformer outlet (10), it is characterised in that：Groove is provided with the inner surface of insulator (2) on described, it is described recessed
Groove forms a toroidal cavity (16) around guide rod (1), and a fan (14) is provided with the cavity (16), the fan (14)
By lower suction and by upper end outlet；The bottom of insulator (2) is opened up by multiple air admission holes (12) around its outline on described, and
The air admission hole (12) connects with the bottom of cavity (16)；On the top of upper insulator (2) annulus is offered around its outline
(13), the bottom of the annulus (13) is connected by the venthole of multiple vertical direction with cavity (16)；The air admission hole
(12) drier (15) is filled with, and filter screen is provided with the opening of air admission hole (12).
A kind of 2. transformer high-voltage bushing according to claim 1, it is characterised in that：The radial line of the annulus (13) with
The angle of horizontal plane is -30 °~+30 °.
A kind of 3. transformer high-voltage bushing according to claim 1, it is characterised in that：Set at the center of the fan (14)
There is bearing, and the bearing is set on guide rod (1).
A kind of 4. transformer high-voltage bushing according to claim 2, it is characterised in that：The width of the annulus (13) by
It is gradually reduced from inside to outside.
A kind of 5. transformer high-voltage bushing according to claim 3, it is characterised in that：The fan (14) is by being installed on sky
Motor driven in chamber (16), the motor is connected by gear drive with fan (14) eccentric gearing, and the electricity of the motor
Source line is drawn by air admission hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720567802.XU CN207021128U (en) | 2017-05-21 | 2017-05-21 | A kind of transformer high-voltage bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720567802.XU CN207021128U (en) | 2017-05-21 | 2017-05-21 | A kind of transformer high-voltage bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207021128U true CN207021128U (en) | 2018-02-16 |
Family
ID=61475689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720567802.XU Expired - Fee Related CN207021128U (en) | 2017-05-21 | 2017-05-21 | A kind of transformer high-voltage bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207021128U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577569A (en) * | 2020-12-14 | 2021-03-30 | 南通大学 | Transformer oil level indicator capable of being used for long time |
-
2017
- 2017-05-21 CN CN201720567802.XU patent/CN207021128U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577569A (en) * | 2020-12-14 | 2021-03-30 | 南通大学 | Transformer oil level indicator capable of being used for long time |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180216 Termination date: 20200521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |