CN201369226Y - 24kV transformer - Google Patents
24kV transformer Download PDFInfo
- Publication number
- CN201369226Y CN201369226Y CNU200920114591XU CN200920114591U CN201369226Y CN 201369226 Y CN201369226 Y CN 201369226Y CN U200920114591X U CNU200920114591X U CN U200920114591XU CN 200920114591 U CN200920114591 U CN 200920114591U CN 201369226 Y CN201369226 Y CN 201369226Y
- Authority
- CN
- China
- Prior art keywords
- iron core
- transformer
- insulating cylinder
- core column
- primary coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model discloses a 24kV transformer, which comprises an iron core, wherein a primary coil, an electric insulating layer and a secondary coil are sequentially coiled on an iron core post of the iron core; and an insulating barrel is arranged between the iron core post and the primary coil. As the insulating barrel is additionally arranged, the primary coil can be coiled on the cylindrical insulating barrel, so as to be supported better; meanwhile, due to the regular shape, the insulating barrel can have uniform stress and is not easy to be twisted and deformed, therefore, the mechanical strength of the 24kV transformer is enhanced, and the short-circuit resistance is greatly improved.
Description
Technical field
The utility model relates to a kind of transformer, relates in particular to the distribution transformer of a kind of 24kV of being used for.
Background technology
In whole electric power system, the distribution transformer that is used for 24kV accounts for the largest percentage, especially nearly all be the distribution transformer that is used for 24kV in rural power grids, along with the continuous increase of net capacity, the large-scale power transformer anti-short circuit capability has become an outstanding problem.For the more weak transformer of some anti-short circuit capabilities, in the near region or outlet often be subject to damage when being short-circuited, cause serious accident, improve its performance, improving anti-short circuit capability, have great importance to improving system reliability, is the problem that present countries in the world are paid close attention to.Used transformer as the three-phase three-limb reel iron core transformer, comprises the volume iron core at present, is wound with primary coil, electric insulation layer, secondary coil successively on the iron core column of volume iron core.Its shortcoming is that anti-short circuit capability is still waiting to improve.
The utility model content
The utility model provides the transformer of a kind of 24kV of being used at deficiency of the prior art, and this transformer has higher anti-short circuit capability.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
A kind of transformer that is used for 24kV comprises iron core, is wound with primary coil, electric insulation layer, secondary coil on the iron core column of iron core successively, is provided with insulating cylinder between described iron core column and the primary coil.Owing to increased insulating cylinder, primary coil is wound on the columniform insulating cylinder, can be supported better, simultaneously, the insulating cylinder regular shape is stressed even, be not easy to produce distortion and distortion, make transformer mechanical strength of the present utility model increase, improved anti-short circuit capability greatly.
In the technique scheme, described iron core is the volume iron core, be by the reel magnetic conductor loop of the sealing form of strip silicon strip, the width of each layer silicon strip on the iron core column of described volume iron core therefrom mind-set becomes gradient to successively decrease outward, make iron core column become class cylindrical, convenient sheathed insulating cylinder makes iron core column and the insulating cylinder compactness that cooperatively interacts, and is solid firm.
In the technique scheme, described insulating cylinder is put together by several cylinders, and the cross section of described cylinder is one section annulus that does not seal, the convenient installation.
In the technique scheme, described insulating cylinder is put together by two hollow semi-cylindrical, and the cross section of described cylinder is a semicircular ring, can save mould, reduces manufacturing cost.
In the technique scheme, described iron core is a laminated core, it is magnetic conductor loop by the stacked sealing that forms of sheet silicon strip, the width of each layer silicon strip on the iron core column of described laminated core therefrom mind-set becomes gradient to successively decrease outward, make iron core column become class cylindrical, convenient sheathed insulating cylinder makes iron core column and the insulating cylinder compactness that cooperatively interacts, and is solid firm.
In the technique scheme, described insulating cylinder is the epoxy insulation tube, and its cross section is the annulus of a sealing, adopts this structure, and technology is simple.
Beneficial effect: the utility model compared with prior art has following beneficial effect:
(1) the utility model is owing to increased insulating cylinder, primary coil is wound on the columniform insulating cylinder, can be supported better, simultaneously, the insulating cylinder regular shape, stressed even, be not easy to produce distortion and distortion, make the transformer mechanical strength of the 24kV of being used for of the present utility model increase, improved anti-short circuit capability greatly.
(2) the utility model is simple in structure, and the cost performance height is promoted easily.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 for the A-A of the transformer that is used for 24kV shown in Figure 1 to cutaway view.
Fig. 3 is the core structure that is used for the transformer of 24kV shown in Figure 1.
Fig. 4 is the insulating cylinder structure that is used for the transformer of 24kV shown in Figure 1.
Fig. 5 is that the B-B of insulating cylinder shown in Figure 4 is to cutaway view.
Fig. 6 is the core structure of the utility model embodiment two.
Fig. 7 is the insulating cylinder structure of the utility model embodiment two.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
A kind of transformer that is used for 24kV, can be single-phase, it also can be three-phase or heterogeneous, it can be the plane, also can be three-dimensional, can be the laminated core structure, also can be coiled core, and present embodiment is the example explanation with plane formula three-phase three-column laminated core transformer and plane formula three-phase three-leg roll-core transformer respectively.
Embodiment one: referring to accompanying drawing 1～5, a kind of three-phase three-leg roll-core transformer, comprise volume iron core 1, described volume iron core 1 is by the reel magnetic conductor loop of the sealing form of strip silicon strip, adopt the coiling of strip silicon strip to go out two rectangular little magnetic conductor loops 11, with two little magnetic conductor loop 11 amalgamations together, and in the big magnetic conductor of its outside coiling loop 13, in big magnetic conductor loop 13 is enclosed in two little magnetic conductor loops 11, the equal multilayer concentric coiling in each magnetic conductor loop.
Preferably, the corner in described magnetic conductor loop is an arc transition, avoids silicon strip transition damage when rolling.
The width of described little magnetic conductor loop 11 each layer silicon strip becomes gradient to increase from the inside to surface, the width of described big magnetic conductor loop 13 each layer silicon strip becomes gradient to successively decrease from the inside to surface, make that 10 one-tenth classes of iron core column are cylindrical, the coiling of convenient follow-up winding prevents winding transition damage in winding process.
Sheathed insulating cylinder on the iron core column 10 of volume iron core 1, described insulating cylinder are the cylinders of a hollow being put together by several cylinders 3, the convenient installation, and the cross section of described cylinder 3 is one section annulus that does not seal.
As preferably, described insulating cylinder is put together by two hollow semi-cylindrical 3, and the cross section of described cylinder 3 is a semicircular ring, can save mould, reduces manufacturing cost.
Embodiment two: a kind of three-phase three-column laminate transformer, comprise laminated core 2, referring to accompanying drawing 6～7, described laminated core 2 is to be stacked to two horizontal rows to iron core frame 22 and the vertical iron core column 20 of three rows by the sheet silicon strip, the magnetic conductor loop of the two frames sealing that forms, the width of each layer silicon strip on the iron core column 20 of described laminated core 2 therefrom mind-set becomes gradient to successively decrease outward, makes 20 one-tenth classes of iron core column cylindrical.
Sheathed insulating cylinder outside iron core column 20, the described insulating cylinder of described insulating cylinder is an epoxy insulation tube 4, its cross section is the annulus of a sealing.When stacked good iron core column 20, can directly pack into insulating cylinder 4, then, fixing with horizontal iron core frame 22 again, technology is simple.
The iron core and the insulating cylinder that complete by embodiment one, two, because iron core column becomes class cylindrical, insulating cylinder is internal diameter and the suitable cylindrical shape of iron core column, both compactnesses that cooperatively interact are solid firm.Certainly, can also in the notch cuttype slot of iron core column, plug some cloths, cushion block etc., so that iron core column is compact more with cooperating of insulating cylinder.
Behind the sheathed good insulating cylinder, just can carry out the coiling of primary coil 5, electric insulation layer 7, secondary coil 9, finish the making of whole transformer, primary coil 5 can directly be wound on the insulating cylinder.
Owing to increased insulating cylinder, primary coil 5 is wound on the columniform insulating cylinder, can be supported better, simultaneously, the insulating cylinder regular shape, stressed even, be not easy to produce distortion and distortion, make the transformer mechanical strength of the 24kV of being used for of the present utility model increase, improved anti-short circuit capability greatly.
Claims (6)
1, a kind of transformer that is used for 24kV comprises iron core, is wound with primary coil (5), electric insulation layer (7), secondary coil (9) on the iron core column of iron core successively, it is characterized in that described iron core column and primary coil are provided with insulating cylinder between (5).
2, the transformer that is used for 24kV according to claim 1, it is characterized in that, described iron core is volume iron core (1), be by the reel magnetic conductor loop of the sealing form of strip silicon strip, the width of each layer silicon strip on the iron core column (10) of described volume iron core (1) therefrom mind-set becomes gradient to successively decrease outward, makes iron core column (10) become class cylindrical.
3, the transformer that is used for 24kV according to claim 2 is characterized in that, described insulating cylinder is put together by several cylinders (3), and the cross section of described cylinder (3) is one section annulus that does not seal.
4, the transformer that is used for 24kV according to claim 3 is characterized in that, described insulating cylinder is put together by two hollow semi-cylindrical (3), and the cross section of described cylinder (3) is a semicircular ring.
5, the transformer that is used for 24kV according to claim 1, it is characterized in that, described iron core is laminated core (2), it is magnetic conductor loop by the stacked sealing that forms of sheet silicon strip, the width of each layer silicon strip on the iron core column (20) of described laminated core (2) therefrom mind-set becomes gradient to successively decrease outward, makes iron core column (20) become class cylindrical.
6, the transformer that is used for 24kV according to claim 5 is characterized in that, described insulating cylinder is epoxy insulation tube (4), and its cross section is the annulus of a sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920114591XU CN201369226Y (en) | 2009-03-02 | 2009-03-02 | 24kV transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920114591XU CN201369226Y (en) | 2009-03-02 | 2009-03-02 | 24kV transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201369226Y true CN201369226Y (en) | 2009-12-23 |
Family
ID=41488117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200920114591XU Expired - Fee Related CN201369226Y (en) | 2009-03-02 | 2009-03-02 | 24kV transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201369226Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039495A (en) * | 2021-10-27 | 2022-02-11 | 中国航空制造技术研究院 | Low leakage inductance boosting power transformer for electron beam high-voltage acceleration power supply |
-
2009
- 2009-03-02 CN CNU200920114591XU patent/CN201369226Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039495A (en) * | 2021-10-27 | 2022-02-11 | 中国航空制造技术研究院 | Low leakage inductance boosting power transformer for electron beam high-voltage acceleration power supply |
| CN114039495B (en) * | 2021-10-27 | 2024-04-09 | 中国航空制造技术研究院 | Low leakage inductance boost power transformer for electron beam high-voltage accelerating power supply |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201829310U (en) | Test transformer | |
| CN2884453Y (en) | Non-crystalline alloy single-phase transformer | |
| CN203377069U (en) | Coil of rolled iron core transformer | |
| CN201369226Y (en) | 24kV transformer | |
| CN201741561U (en) | Power transformer with shell type structure | |
| CN202839278U (en) | Winding planar transformer | |
| CN202258641U (en) | Dry type hollow reactor | |
| CN201698857U (en) | High-voltage harmonic filter reactor | |
| CN201185123Y (en) | Amorphous alloy transformer | |
| CN201584276U (en) | Transformer body structure | |
| CN201673789U (en) | Three-phase amorphous alloy all-aluminum epoxy resin dry type power transformer core | |
| CN105655108B (en) | Pass around power transformer of silicon strip magnetic core and preparation method thereof | |
| CN201708012U (en) | Resin-cast rectangular dry-type transformer | |
| CN201877702U (en) | Compact 500kV main transformer 35kV side structure | |
| CN210223743U (en) | Laminated iron core transformer | |
| CN201369227Y (en) | 24kV transformer | |
| CN203338894U (en) | Multi-capacity dry-type air-core reactor | |
| CN203013487U (en) | Aluminum foil coiling flat plate transformer | |
| CN103325525A (en) | Multicapacity dry-type air reactor | |
| CN201681701U (en) | Amorphous alloy transformer | |
| CN207425566U (en) | A kind of folding stereo open core no-encapsulated-winding dry-type transformer | |
| CN202172003U (en) | High pressure lead wire structure of double-split dry type distribution transformer | |
| CN101834056A (en) | Resin-cast rectangular dry-type transformer | |
| CN207009251U (en) | High-frequency and high-voltage water cooling electric discharge transformer | |
| CN202230845U (en) | Three-phase stereo-wound-core type resin-insulated dry power transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20170302 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |