CN202977134U - Tooth-shaped filler block for large transformer windings - Google Patents
Tooth-shaped filler block for large transformer windings Download PDFInfo
- Publication number
- CN202977134U CN202977134U CN 201220718107 CN201220718107U CN202977134U CN 202977134 U CN202977134 U CN 202977134U CN 201220718107 CN201220718107 CN 201220718107 CN 201220718107 U CN201220718107 U CN 201220718107U CN 202977134 U CN202977134 U CN 202977134U
- Authority
- CN
- China
- Prior art keywords
- filler block
- tooth
- shaped filler
- winding coil
- cushion block
- 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 - Lifetime
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- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model relates to a tooth-shaped filler block for large transformer windings, and belongs to the technical field of transformers. The technical scheme includes that the tooth-shaped filler block comprises a filler block body (1) and a plurality of sawtoothed grooves (2) reserved on the filler block body, and the filler block is made of laminated paper boards. The tooth-shaped filler block has the advantages that the filler block is simple in structure and convenient to produce; since shrinking percentage of a molded tooth-shaped filler block is smaller than that of an insulated paperboard filler strip, mechanical strength of the molded tooth-shaped filler block is greater than that of the insulated paperboard filler strip and the molded tooth-shaped filler block is not easy to crack, the tooth-shaped filler block can cling to a winding coil after being used for filling the winding coil with a radial direction of more than 100 mm; and loosening of the winding coil can be avoided in the process of vacuum drying and oil immersion, so that compaction degree of the radial direction of the winding coil can be effectively increased, and mechanical strength and short-circuit resisting capability of the winding coil can be greatly improved.
Description
Technical field
The utility model relates to a kind of profile of tooth cushion block for Coefficients of Large Power Transformer Winding, belongs to the transformer technology field.
Background technology
At present, in high-power transformer, for the width that makes winding satisfies electric requirement to height, the number of turn, when winding technique, need to the line cake width of discontented circle to filling, make the different line cake of the number of turn at grade.Use common cardboard filler strip interstitial wire cake width to the time, when filling thickness larger, generally greater than after 10mm, filler strip in vacuumize and immersion oil process often because shrinking more or distortion causes easily that the line cake is radial to fluff, especially the line cake that the radial number of turn is less, because the interlayer filler strip only can be concentrated and is placed on same circumferential position, the anti-short circuit capability that the filler strip contraction distortion causes the line cake to fluff to make winding in vacuumize and immersion oil process reduces, and stays hidden danger for the safe operation of transformer.
The utility model content
The utility model purpose is not to provide a kind of profile of tooth cushion block for Coefficients of Large Power Transformer Winding, and easily processing, simple in structure, and is indeformable in vacuumize and immersion oil process, and is easy to crack and shrinkage is little, solves the problems referred to above that background technology exists.
The technical solution of the utility model is: a kind of profile of tooth cushion block for Coefficients of Large Power Transformer Winding, comprise cushion block and serrated slot, and offer a plurality of serrated slot on cushion block.
Described cushion block is the cushion block that laminated paper board is made, thickness direction is the pressing direction of laminated paper board, place between the winding wire cake for convenient, open some well-regulated serrated slot at the laminated paper board Width, can be easy to be placed on radial size and the consolidation requirement to satisfy the winding wire cake between the winding wire cake after bending.
Good effect of the present utility model: simple in structure, easily manufactured; Because the profile of tooth cushion block of moulding is less than the insulating board filler strip shrinkage of same thickness, mechanical strength will be far longer than insulating board filler strip and not easy to crack, after being used for filling radial winding wire cake greater than 10mm, can be sturdy with the line cake, avoid the winding wire cake phenomenon that fluffs to occur in vacuumize and immersion oil process, thereby the effective radial consolidation degree of splicing thread cake can improve mechanical strength and the anti-short circuit capability of winding wire cake largely.
Description of drawings
Fig. 1 is the utility model embodiment schematic diagram;
Fig. 2 places online cake width to schematic diagram after the utility model embodiment bending;
In figure: cushion block 1, serrated slot 2.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is described further.
A kind of profile of tooth cushion block for Coefficients of Large Power Transformer Winding comprises cushion block 1 and serrated slot 2, offers a plurality of serrated slot on cushion block.
Described cushion block is the cushion block that laminated paper board is made, thickness direction is the pressing direction of laminated paper board, place between the winding wire cake for convenient, open some well-regulated serrated slot at the laminated paper board Width, can be easy to be placed on radial size and the consolidation requirement to satisfy the winding wire cake between the winding wire cake after bending.
Claims (2)
1. a profile of tooth cushion block that is used for Coefficients of Large Power Transformer Winding, is characterized in that: comprise cushion block (1) and serrated slot (2), offer a plurality of serrated slot on cushion block.
2. a kind of profile of tooth cushion block for Coefficients of Large Power Transformer Winding according to claim 1 is characterized in that: described cushion block is the cushion block that laminated paper board is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220718107 CN202977134U (en) | 2012-12-24 | 2012-12-24 | Tooth-shaped filler block for large transformer windings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220718107 CN202977134U (en) | 2012-12-24 | 2012-12-24 | Tooth-shaped filler block for large transformer windings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202977134U true CN202977134U (en) | 2013-06-05 |
Family
ID=48518178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220718107 Expired - Lifetime CN202977134U (en) | 2012-12-24 | 2012-12-24 | Tooth-shaped filler block for large transformer windings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202977134U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107481840A (en) * | 2017-05-18 | 2017-12-15 | 常德国力变压器有限公司 | A kind of pressing device of Transformer Winding |
-
2012
- 2012-12-24 CN CN 201220718107 patent/CN202977134U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107481840A (en) * | 2017-05-18 | 2017-12-15 | 常德国力变压器有限公司 | A kind of pressing device of Transformer Winding |
| CN107481840B (en) * | 2017-05-18 | 2023-04-07 | 常德国力变压器有限公司 | Pressing device for transformer winding |
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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: 20130605 |
|
| CX01 | Expiry of patent term |