CN201449837U - Novel high-voltage transformer body strut fixing structure - Google Patents
Novel high-voltage transformer body strut fixing structure Download PDFInfo
- Publication number
- CN201449837U CN201449837U CN2009200480215U CN200920048021U CN201449837U CN 201449837 U CN201449837 U CN 201449837U CN 2009200480215 U CN2009200480215 U CN 2009200480215U CN 200920048021 U CN200920048021 U CN 200920048021U CN 201449837 U CN201449837 U CN 201449837U
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- stay
- strut
- keeper
- voltage transformer
- heat
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Abstract
The utility model relates to a novel high-voltage transformer body strut fixing structure, wherein each strut device consists of a folding screen, a strut, positioning parts, a heat-shrinkable tube and Danny release paper. The strut device at the first layer is formed by utilizing the folding screen to encircle the periphery of an inner coil, longitudinally placing the strut on the folding screen, arranging the positioning parts at the upper end and the lower end of the strut, binding the heat-shrinkable tube with the strut and the positioning parts at positions of the upper positioning part and the lower positioning part and then binding the heat-shrinkable tube with the Danny release paper spirally in a height direction of the strut from bottom to top. Strut devices at the second layer, the third layer and so on are arranged according to the above method until all the strut devices are arranged. An outer coil is sleeved after all the strut devices are arranged. The upper end and the lower end of each strut are equipped with strut notches. The positioning parts made of insulation paper boards are provided with positioning part grooves. The positioning parts are embedded in the strut notches. The strut notches are clamped in the positioning part grooves, the struts and the positioning parts are bound with the heat-shrinkable tubes in the strut notches at the upper end and the lower end of the struts. The novel high-voltage transformer body strut fixing structure has the advantages of preventing local discharge caused by high electric field, increasing insulating property of transformer products and improving electrical quality of transformers.
Description
Technical field
The utility model belongs to the transformer technology field, particularly a kind of high voltage transformer device body stay fixing novel structure.
Background technology
In 500kV and above extra-high pressure oil-filled transformer, a large amount of paper oil insulation structures of using, adopt the mode of filling screen and stay as the clearance for insulation between each coil of transformer, make mutual stretching between each coil, and big oil clearance is divided into several small oil gaps, the electric compressive resistance of the width of cloth of intensifier coil between mechanical strength and coil.In traditional structure, often use glue that stay is bonded on the corresponding screen, reach the purpose of fixed stay.Because the composition in the glue is wayward, often contains impurity, can cause partial discharge in high electric field; Glue itself reaches and easily form CAB in coating process in addition, can cause partial discharge equally; Moreover because the permittivity ratio transformer oil and the insulating board of glue are big, and the size of electric field strength and dielectric constant is inversely proportional to, can cause the electric field strength in transformer oil and the cardboard to increase, thereby cause discharge or insulation breakdown, the safe operation of harm transformer.
Summary of the invention
The purpose of this utility model provides a kind of high voltage transformer device body stay fixing novel structure.This stay fixing novel structure has the employing insulating board and carries out the fixing of device body stay, uses the glue fixed stay in the replace traditional structural.Can avoid under high electric field because the partial discharge that the factors such as impurity, bubble and dielectric constant of glue cause, can improve the insulation property of high voltage transformer product, can promote the electrical quality of transformer.
The technical solution of the utility model is: a kind of high voltage transformer device body stay fixing novel structure, each stay device is made up of screen, stay, keeper, heat-shrinkable tube and Dan Nisong paper.At interior loop peripheral equipment ground floor stay device, the ground floor stay device is to enclose the dress screen in the interior loop periphery, vertically places stay on screen, at the upper and lower end placement positioning part of stay.Heat-shrinkable tube is at upper and lower keeper place's colligation stay and keeper, and the colligation of Dan Nisong paper spiral is used from bottom to up in the short transverse of stay in the back again.Place the second layer, the 3rd layer of stay device until placing whole stay devices in ground floor stay device periphery as stated above.Suit exterior loop after all stay device is finished.
Described stay upper and lower end all has the stay breach.
Described keeper is selected the thick insulating board of 1.5mm for use, has the keeper groove at insulating board on one end face of transformer body center.
Upper and lower keeper all is inlaid in the stay breach of stay upper and lower end.
Stay upper and lower end stay indentation, there is installed in the keeper groove of keeper respectively.
Heat-shrinkable tube is colligation stay and keeper in the stay breach of stay upper and lower side.
The utility model has the advantages that provides a kind of high voltage transformer device body stay fixing novel structure.This stay fixing novel structure has the employing insulating board and carries out the fixing of device body stay, uses the glue fixed stay in the replace traditional structural.Avoided under high electric field because the partial discharge that the factors such as impurity, bubble and dielectric constant of glue cause, improved the insulation property of high voltage transformer product, promoted the electrical quality of transformer.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model positioning body.
Fig. 3 is the expansion schematic diagram of the utility model stay device.
Among the figure: 1, interior loop, 2, screen, 3, stay, 4, stay device, 5, keeper, 6, heat-shrinkable tube, 7, the stay breach, 8, exterior loop, 9, the keeper groove, 10, Dan Nisong paper.
Embodiment
Embodiment as shown in Figure 1 to Figure 3 is as follows: a kind of high voltage transformer device body stay fixing novel structure.Each stay device 4 is made up of screen 2, stay 3, keeper 5, heat-shrinkable tube 6 and Dan Nisong paper 10.At interior loop 1 peripheral equipment ground floor stay device 4, ground floor stay device 4 is to enclose dress screen 2 in interior loop 1 periphery, vertically places stay 3 on screen 2, at the upper and lower end placement positioning part 5 of stay 3.Heat-shrinkable tube 6 is at upper and lower keeper 5 places colligation stay 3 and keeper 5, and the 10 spiral colligations of Dan Nisong paper are used from bottom to up in the short transverse of stay 3 in the back again.Place the second layers, the 3rd layer of stay device 4 until placing whole stay devices 4 in ground floor stay device 4 peripheries as stated above.Suit exterior loop 8 after all stay device 4 is finished.
Described stay 3 upper and lower ends all have stay breach 7.
Described keeper 5 is selected the thick insulating board of 1.5mm for use, has keeper groove 9 at insulating board on one end face of transformer body center.Upper and lower keeper 5 all is inlaid in the stay breach 7 of stay 3 upper and lower ends.
Stay 3 upper and lower end stay breach 7 places are installed in the keeper groove 9 of keeper 5 respectively.
Heat-shrinkable tube 6 is colligation stay 3 and keeper 5 in the stay breach 7 of stay 3 upper and lower sides.
Claims (6)
1. a high voltage transformer device body stay fixing novel structure is characterized in that; Each stay device is made up of screen, stay, keeper, heat-shrinkable tube and Dan Nisong paper; At interior loop peripheral equipment ground floor stay device, the ground floor stay device is to enclose the dress screen in the interior loop periphery, on screen, vertically place stay, upper and lower end placement positioning part at stay, heat-shrinkable tube is at upper and lower keeper place's colligation stay and keeper, and the colligation of Dan Nisong paper spiral is used from bottom to up in the short transverse of stay in the back again; Place the second layer, the 3rd layer of stay device until placing whole stay devices in ground floor stay device periphery as stated above; Suit exterior loop after all stay device is finished.
2. a kind of high voltage transformer device body stay fixing novel structure according to claim 1 is characterized in that; Described stay upper and lower end all has the stay breach.
3. a kind of high voltage transformer device body stay fixing novel structure according to claim 1 is characterized in that; Described keeper is selected the thick insulating board of 1.5mm for use, has the keeper groove at insulating board on one end face of transformer body center.
4. a kind of high voltage transformer device body stay fixing novel structure according to claim 1 is characterized in that; Upper and lower keeper all is inlaid in the stay breach of stay upper and lower end.
5. a kind of high voltage transformer device body stay fixing novel structure according to claim 1 is characterized in that; Stay upper and lower end stay indentation, there is installed in the keeper groove of keeper respectively.
6. a kind of high voltage transformer device body stay fixing novel structure according to claim 1 is characterized in that; Heat-shrinkable tube is colligation stay and keeper in the stay breach of stay upper and lower side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200480215U CN201449837U (en) | 2009-08-25 | 2009-08-25 | Novel high-voltage transformer body strut fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200480215U CN201449837U (en) | 2009-08-25 | 2009-08-25 | Novel high-voltage transformer body strut fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201449837U true CN201449837U (en) | 2010-05-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200480215U Expired - Lifetime CN201449837U (en) | 2009-08-25 | 2009-08-25 | Novel high-voltage transformer body strut fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201449837U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937683A (en) * | 2012-11-29 | 2013-02-20 | 重庆大学 | Dielectric response measuring device with adjustable insulating structure |
| CN110060856A (en) * | 2019-05-24 | 2019-07-26 | 保定天威保变电气股份有限公司 | A kind of high-power transformer D-shaped iron core body tightening device |
-
2009
- 2009-08-25 CN CN2009200480215U patent/CN201449837U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937683A (en) * | 2012-11-29 | 2013-02-20 | 重庆大学 | Dielectric response measuring device with adjustable insulating structure |
| CN110060856A (en) * | 2019-05-24 | 2019-07-26 | 保定天威保变电气股份有限公司 | A kind of high-power transformer D-shaped iron core body tightening device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100505 |
|
| CX01 | Expiry of patent term |