CN201278303Y - Transformer - Google Patents
Transformer Download PDFInfo
- Publication number
- CN201278303Y CN201278303Y CNU2008201644345U CN200820164434U CN201278303Y CN 201278303 Y CN201278303 Y CN 201278303Y CN U2008201644345 U CNU2008201644345 U CN U2008201644345U CN 200820164434 U CN200820164434 U CN 200820164434U CN 201278303 Y CN201278303 Y CN 201278303Y
- Authority
- CN
- China
- Prior art keywords
- pressure winding
- insulation board
- transformer
- high pressure
- low pressure
- 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
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Abstract
The utility model relates to power equipment, aiming to provide an insulating transformer capable of efficiently preventing electric sparks generated by high voltage from burning a coil. The insulating transformer has the advantages of reasonable structure, safety, reliability, favorable insulating effect and production cost conservation, and comprises a box body, wherein the box body is internally provided with at least one set of high-voltage winding and one set of low-voltage winding, and the high-voltage winding encompasses the outer ring of the low-voltage winding. The transformer is characterized in that an insulating plate is arranged between the high-voltage winding and the low-voltage winding.
Description
Technical field
The utility model relates to a kind of power equipment, specifically is a kind of transformer.
Background technology
At present, transformer is widely used in the occasion that there is fire protection requirement urban distribution network, subway station etc.Common transformer is made of the iron core coil outer with being wrapped in iron core, and when running into power-frequency voltage or lightning impulse voltage, because its generation transient voltage is too high, too high transient voltage can produce strong magnetic field; Easily puncture the magnetic field that coil produced, produce electric spark, burn coil, cause the generation of transformer quality accident.
At the problems referred to above, present most of transformers all adopt insulation system to overcome the problems referred to above, and common insulation system has two kinds: a kind of is to adopt the airspace, and promptly the incombustible inert gas of sealing serves as insulator in transformer; But the bad sealing of inert gas, and the inconvenience of drawing materials.In order to prevent that high voltage from producing spark, need to increase the distance that reaches between the high and low pressure coil between the iron core simultaneously, thereby improved production cost.Second kind adopt insulating end ring as high-tension coil to low-voltage coil and insulation over the ground, but result of use is undesirable.
The utility model content
The purpose of this utility model is the deficiency that overcomes the above-mentioned background technology, a kind of insulating transformer device is provided, the device that is provided should be able to prevent effectively that the electric spark that high voltage produces from burning coil, have rational in infrastructure, safe and reliable, insulation effect is good, save production cost characteristics.
The technical scheme that the utility model adopted is: a kind of transformer, comprise casing, be provided with at least one group of high pressure winding and low pressure winding in the casing, described high pressure winding is enclosed in low pressure winding outer ring, it is characterized in that between described high pressure winding and the low pressure winding every being provided with insulation board.
Described insulation board is made of two U-shaped bodies.
Described U-shaped body comprises that the insulation board of two transverse arrangement of turbo and an insulation board of vertically placing constitute, the insulation board of transverse arrangement of turbo lays respectively at the top and the bottom of high pressure winding, low pressure winding, and vertically the insulation board of placing is between high pressure winding and low pressure winding.
Described insulation board is a paper-based laminate.
The beneficial effects of the utility model are: rational in infrastructure, and good working effect, stable and reliable for performance; By between high pressure winding and low pressure winding, insulation board being set, promptly between high pressure winding and low pressure winding, set up safety curtain, make the high pressure winding can bear high coucher frequently withstand voltage and insulating do not puncture; Greatly improved useful life of transformer.In addition, also shortened the distance between coil and the iron core, reduced the height and the width of iron core, not only improved the security of products energy, and reduced production cost of products.
Description of drawings
Fig. 1 is a front section view of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Embodiment
By the following examples the technical solution of the utility model is described further.
As shown in Figure 1, 2, present embodiment comprises a casing, included casing 1 is identical with the structure of existing threephase oil immersed transformer, three groups of high pressure windings and low pressure winding (A, B, C as Fig. 1 represent this three groups of high pressure windings and low pressure winding respectively) are set in the casing, and these three groups of high pressure windings and low pressure winding are arranged side by side and are spaced a distance.Described high pressure winding all is enclosed in corresponding low pressure winding outer ring.
The improvement that the utility model relates to is: between every group of high pressure winding 4 and the low pressure winding 2 all every being provided with insulation board 3.Described insulation board shields, and promptly sets up safety curtain between high pressure winding and low pressure winding, make the high pressure winding can bear kilovolt high frequency withstand voltage and insulate not breakdown, greatly improved useful life of transformer.
As of the present utility model further preferred, described insulation board is made of two U-shaped insulators, described U-shaped body comprises and is horizontally installed on high pressure winding top and bottom, the insulation board of low pressure winding top and bottom, and vertically be arranged on insulation board between high pressure winding and the low pressure winding.
As of the present utility model further preferred, described " U " type insulator is selected paper-based laminate for use.This paper-based laminate buyable obtains.
In order better to reflect view, omitted the sectional plane of iron core among Fig. 2.
Claims (4)
1, a kind of transformer, comprise casing (1), be provided with at least one group of high pressure winding (4) and low pressure winding (2) in the casing, described high pressure winding is enclosed in low pressure winding outer ring, it is characterized in that between described high pressure winding (4) and the low pressure winding (2) every being provided with insulation board (3).
2, transformer according to claim 1 is characterized in that described insulation board is made of two U-shaped bodies.
3, transformer according to claim 1 and 2, it is characterized in that described U-shaped body comprises that the insulation board of two transverse arrangement of turbo and an insulation board of vertically placing constitute, the insulation board of transverse arrangement of turbo lays respectively at the top and the bottom of high pressure winding, low pressure winding, and vertically the insulation board of placing is positioned between high pressure winding (4) and the low pressure winding (2).
4, transformer according to claim 3 is characterized in that described insulation board is a paper-based laminate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201644345U CN201278303Y (en) | 2008-09-12 | 2008-09-12 | Transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201644345U CN201278303Y (en) | 2008-09-12 | 2008-09-12 | Transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201278303Y true CN201278303Y (en) | 2009-07-22 |
Family
ID=40895891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201644345U Expired - Fee Related CN201278303Y (en) | 2008-09-12 | 2008-09-12 | Transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201278303Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515069A (en) * | 2013-10-23 | 2014-01-15 | 中电电气(江苏)股份有限公司 | Phase partition structure of transformer |
| CN105742037A (en) * | 2014-12-10 | 2016-07-06 | 特变电工沈阳变压器集团有限公司 | Interphase partition board for three-dimensional roll-core transformer and manufacturing method of interphase partition board |
-
2008
- 2008-09-12 CN CNU2008201644345U patent/CN201278303Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515069A (en) * | 2013-10-23 | 2014-01-15 | 中电电气(江苏)股份有限公司 | Phase partition structure of transformer |
| CN105742037A (en) * | 2014-12-10 | 2016-07-06 | 特变电工沈阳变压器集团有限公司 | Interphase partition board for three-dimensional roll-core transformer and manufacturing method of interphase partition board |
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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: 20090722 Termination date: 20150912 |
|
| EXPY | Termination of patent right or utility model |