CN201392721Y - Insulation structure of transformer - Google Patents
Insulation structure of transformer Download PDFInfo
- Publication number
- CN201392721Y CN201392721Y CN200920009911U CN200920009911U CN201392721Y CN 201392721 Y CN201392721 Y CN 201392721Y CN 200920009911 U CN200920009911 U CN 200920009911U CN 200920009911 U CN200920009911 U CN 200920009911U CN 201392721 Y CN201392721 Y CN 201392721Y
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- partition plate
- ring
- cardboard
- formula
- towering
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Abstract
The utility model discloses an insulation structure of a transformer, which comprises an inner side partition plate, a middle side partition plate, a regulating cardboard, a phase partition plate and an erecting soft angle ring, wherein the inner side partition plate and the middle side partition plate are in an annular shape, and the cross sections of the inner side partition plate and the middle side partition plate are in an I shape; the erecting soft angle ring is in an annular shape, and the phase partition plate is arranged in the inner side partition plate; and the phase partition plate, the inner side partition plate, the middle side partition plate, the regulating cardboard and the erecting soft angle ring are sequentially arranged from inside to outside. The utility model solves the problems that the prior art is not favorable for the smooth circulation of hot oil in coils and seriously affects the heat dissipation of the coils, can effectively reduce the height of a transformer core column and reduce silicon steel sheet consumption and no-load loss, and can improve the heat dissipating ability and working current density, and lower the cross section and consumption of an electromagnetic wire so as to reach energy-saving and consumption-reducing purposes.
Description
Technical field
The utility model relates to the last lower yoke of a kind of insulation system of transformer, particularly a kind of oil-filled transformer and alternate transformer insulated structure.
Background technology
Present transformer insulated structure adopts oil-barrier insulation structural theory, transformer oil has different dielectric coefficients with insulating board, by reasonable distribution and adjustment oil clearance, determines block board thickness, field intensity is controlled in the suitable scope, thereby guarantees the insulation effect of transformer.
For guaranteeing transformer core insulation and alternate electric strength up and down, adopting solid insulation to cooperate with transformer oil in the compound inslation of forming, traditional transformer insulated structure Chang Weitie yoke cushion block adds the structure of paper circle, referring to Fig. 3 and shown in Figure 4.This insulation system, its paper circle all covers end winding, vertical heat radiation oil clearance of coil is stopped reach more than 80%, is unfavorable for the unobstructed circulation of deep fat in the coil, has a strong impact on the heat radiation of coil; On the other hand, the one-sided thickness of paper circle and cushion block generally is the 7.5-10 millimeter, and the high size of the core limb of transformer and window is bigger, needs to consume materials such as more silicon steel sheet, make the needed cathode copper of transformer, oil, etc. all be the non-renewable resources material, in case exhaust then non-renewable.
The utility model content
The purpose of this utility model provides a kind of transformer insulated structure, remedies the unobstructed circulation that is unfavorable for deep fat in the coil that prior art exists, and has a strong impact on heat radiation and the core material and the electromagnetic wire consumption problems of too of coil.
The technical scheme that its technical problem that solves the utility model adopts is:
Transformer insulated structure comprises inboard partition, middle side dividing plate, regulates cardboard, phase partition, the formula of towering soft corner-ring; Inboard partition, middle side dividing plate are that ring-type and cross section are " worker " shape, and adjusting cardboard, the formula soft corner-ring of towering are circular; Phase partition is arranged in the inboard partition; Inboard partition, middle side dividing plate, regulate that cardboard, phase partition, the formula soft corner-ring of towering order from inside to outside are followed successively by phase partition, inboard partition, middle side dividing plate, regulate cardboard, the formula of towering soft corner-ring.
Described adjusting cardboard panel is in the middle of high-tension coil, and the thickness of cardboard and length and coil are adaptive.
The described formula soft corner-ring surface of towering is the wrinkle shape, and the end is circular.
The described formula soft corner-ring surface of towering is the wrinkle shape, and the end is the Long Circle adaptive with coil shape.
Described Long Circle comprises ellipse.
The described formula soft corner-ring surface of towering is the wrinkle shape, and the end is the rectangle adaptive with coil shape.
Described inboard partition and middle side dividing plate be 4 millimeters apart from minimum value.
Described tower formula soft corner-ring and dividing plate be 4 millimeters apart from minimum value.
The described formula square ring cloth that towers is placed on the inboard and low-voltage coil outside of high-tension coil.
The described formula square ring cloth that towers is placed on the high-tension coil outermost.
The beneficial effects of the utility model are: because the utility model has adopted inboard and in the side dividing plate, regulate cardboard, three kinds of insulation technologies of the formula of towering soft corner-ring, can effectively reduce leg height, save the silicon steel sheet consumption, reduce no-load loss; The heat-sinking capability and the work electricity that also can promote coil are close, reduce the cross section and the consumption of electromagnetic wire, reach double goal energy-conservation, consumption reduction.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of formula soft corner-ring of towering;
Fig. 3 is existing transformer insulated architecture schematic diagram;
Fig. 4 is that the A of Fig. 3 is to schematic diagram;
1. inboard partitions among the figure, 2. in the side dividing plate, 3. regulate cardboard, 4. phase partition, the formula of 5. towering soft corner-ring, 6. iron yoke cushion block, 7. paper circle,
Concrete occupation mode
As shown in Figures 1 and 2, the insulation system of present embodiment comprises inboard partition 1, middle side dividing plate 2, regulates cardboard 3, phase partition 4, the formula of towering soft corner-ring 5; Inboard partition 1, middle side dividing plate 2 are that ring-type and cross section are " worker " shape, regulate cardboard 3, the formula of towering soft corner-ring 4 for circular; Phase partition 4 is arranged in the inboard partition 1; Inboard partition 1, middle side dividing plate 1, adjusting cardboard 3, phase partition 4, the formula of towering soft corner-ring 5 order from inside to outside are followed successively by phase partition 4, inboard partition 1, middle side dividing plate 2, regulate cardboard 3, the formula of towering soft corner-ring 5.
This product is placed on high-voltage coil and low-voltage coil and up and down between the core window.In the present embodiment, the thin insulating dividing plate that inboard partition 1, middle side dividing plate 2 are made for electrician's cardboard, and be processed into suitable angle of bend.Inboard partition 1 is 4 millimeters with middle side dividing plate 2 apart from minimum value.Dividing plate is 4 millimeters with what tower formula soft corner-ring 3 apart from minimum value.Regulating cardboard 3 is to be formed by the common adaptive coil of electrician's cardboard, and panel is in the middle of high-tension coil, and the thickness of cardboard and length and coil are adaptive.The formula of towering soft corner-ring 5 is processed by the crimped paper of certain thickness and intensity, and the end is folded into circle, and cloth is placed between high-tension coil and the last lower yoke.The end of the formula of towering soft corner-ring 5 also can be the Long Circle adaptive with coil shape, comprises oval and and the adaptive rectangle of coil shape.But the formula of towering square ring cloth 3 also cloth is placed on the high-tension coil outermost.
Present embodiment has adopted inboard partition 1 and middle side dividing plate 2, has regulated cardboard 3,5 three kinds of insulation technologies of the formula of towering soft corner-ring, has obtained significant effect.Utilize inboard partition 1 and in the side dividing plate 2 blocking-up transformer oils impurity such as fiber gather formed conduction foot bridge, avoid iron yoke and coil to conduct electricity and discharge between foot bridge; Because transformer oil has " bulk effect ", according to oil clearance electric strength volume theory, regulate cardboard 4 and can change Electric Field Distribution in the oil, effectively improve electric strength; The employing of the formula of towering soft corner-ring 5 has not only increased the creepage distance of end winding to the iron yoke, and has reduced the middle Circulation and Hot Oil Spray obstruction of vertical oil clearance.Present embodiment effectively combines three kinds of insulation technologies, and can regulate insulation distance according to the needs of dry after-contraction situation of coil and seam situation unshakable in one's determination, guarantees that insulation distance is reliably compact.The insulation system of traditional transformer is 10 millimeters, and the one-sided minimum insulation structure of present embodiment is far smaller than 10 millimeters, because the aspect ratio traditional structure transformer of the core limb of transformer is short and small, the weight of electrical steel sheet reduces, transformer work magnetic close with the specific loss square one under, silicon steel sheet weight unloaded with unshakable in one's determination unshakable in one's determination is directly proportional, and reduces thereby the no-load loss value is also corresponding, reaches the purpose that reduces no-load loss.In addition, the coil heat dispersion improves, under the equal temperature rise situation of transformer coil, can suitably improve the working current density of electromagnetic wire and the cross section that reduces electromagnetic wire, and the dwindling of the cross section of electromagnetic wire, directly reduce electromagnetic wire and consume, and the transformer overall volume is reduced, reduced effectively and made needed various materials.
More than by embodiment principle of the present invention is described, obviously, those of ordinary skill in the art can be on the basis of above instruction, and the present invention is done various improvement, is out of shape, is equal to and replace and do not break away from protection scope of the present invention.
Claims (10)
1. transformer insulated structure is characterized in that: comprise inboard partition, middle side dividing plate, regulate cardboard, phase partition, the formula of towering soft corner-ring; Inboard partition, middle side dividing plate are that ring-type and cross section are " worker " shape, and adjusting cardboard, the formula soft corner-ring of towering are circular; Phase partition is arranged in the inboard partition; Inboard partition, middle side dividing plate, regulate that cardboard, phase partition, the formula soft corner-ring of towering order from inside to outside are followed successively by phase partition, inboard partition, middle side dividing plate, regulate cardboard, the formula of towering soft corner-ring.
2. according to the described transformer insulated structure of claim 1, it is characterized in that: described adjusting cardboard panel is in the middle of high-tension coil, and the thickness of cardboard and length and coil are adaptive.
3. according to the described transformer insulated structure of claim 1, it is characterized in that: the described formula soft corner-ring surface of towering is the wrinkle shape, and the end is circular.
4. according to the described transformer insulated structure of claim 1, it is characterized in that: the described formula soft corner-ring surface of towering is the wrinkle shape, and the end is the Long Circle adaptive with coil shape.
5. according to the described transformer insulated structure of claim 4, it is characterized in that: described Long Circle comprises ellipse.
6. according to the described transformer insulated structure of claim 1, it is characterized in that: the described formula soft corner-ring surface of towering is the wrinkle shape, and the end is the rectangle adaptive with coil shape.
7. according to the described transformer insulated structure of claim 1, it is characterized in that: described inboard partition and middle side dividing plate be 4 millimeters apart from minimum value.
8. according to the described transformer insulated structure of claim 1, it is characterized in that: the one-sided minimum value of distance of described tower formula square ring and dividing plate is 4 millimeters
9. according to the described transformer insulated structure of claim 1, it is characterized in that: the described formula square ring cloth that towers is placed on the inboard and low-voltage coil outside of high-tension coil.
10. according to the described transformer insulated structure of claim 1, it is characterized in that: the described formula square ring cloth that towers is placed on the high-tension coil outermost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920009911U CN201392721Y (en) | 2009-02-18 | 2009-02-18 | Insulation structure of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920009911U CN201392721Y (en) | 2009-02-18 | 2009-02-18 | Insulation structure of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201392721Y true CN201392721Y (en) | 2010-01-27 |
Family
ID=41599543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920009911U Expired - Fee Related CN201392721Y (en) | 2009-02-18 | 2009-02-18 | Insulation structure of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201392721Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208262A (en) * | 2011-03-23 | 2011-10-05 | 曾祥军 | Transformer with grade-insulation structure |
| 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 |
| CN103680872A (en) * | 2013-12-30 | 2014-03-26 | 国能子金电器(苏州)有限公司 | Improved insulating structure of body of transformer |
-
2009
- 2009-02-18 CN CN200920009911U patent/CN201392721Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208262A (en) * | 2011-03-23 | 2011-10-05 | 曾祥军 | Transformer with grade-insulation structure |
| 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 |
| CN103680872A (en) * | 2013-12-30 | 2014-03-26 | 国能子金电器(苏州)有限公司 | Improved insulating structure of body of transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20130218 |