CN201812656U - Main insulating structure of dry transformer - Google Patents
Main insulating structure of dry transformer Download PDFInfo
- Publication number
- CN201812656U CN201812656U CN2010205738103U CN201020573810U CN201812656U CN 201812656 U CN201812656 U CN 201812656U CN 2010205738103 U CN2010205738103 U CN 2010205738103U CN 201020573810 U CN201020573810 U CN 201020573810U CN 201812656 U CN201812656 U CN 201812656U
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- CN
- China
- Prior art keywords
- group
- cushion block
- insulating cylinder
- pressure winding
- dry
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- Expired - Fee Related
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Abstract
The utility model discloses a main insulating structure of a dry transformer, which comprises a group of insulating cylinders arranged between a high-voltage winding and a low-voltage winding, wherein the group of insulating cylinders with different heights are arranged between the high-voltage winding and the low-voltage winding at equal intervals; and fixed cushion blocks are arranged at the two ends of the group of insulating cylinders, and are used for fixing the relative positions of the high-voltage winding, the low-voltage winding and the group of insulating cylinders. The dry transformer adopting the structure provided by the utility model has a small volume and low cost, and meets operating requirements. The main insulating structure of the dry transformer is applicable to the 20kV high-voltage and low-voltage windings.
Description
Technical field
The utility model belongs to field transformer, relates to a kind of structure of dry-type transformer, specifically a kind of dry-type transformer Main Insulation Structure of Electric that helps materials saving.
Background technology
Along with the popularization of 20kV electrical network, the market demand of 20kV dry-type transformer progressively enlarges.The main insulation of dry-type transformer is along with the improve of electric pressure, and design and the difficulty of producing also constantly increase.Existing structure generally is to solve by the distance that strengthens between the high and low pressure winding, to add one deck heavy insulation tube and isolate between the high and low pressure winding.The dry-type transformer shortcoming of this structural design is: volume is big, the cost height, and sound is louder when doing withstand voltage test, and difficulty meets the demands.
Summary of the invention
In order to overcome the problem that existing 20kV dry-type transformer Main Insulation Structure of Electric exists, the purpose of this utility model provides a kind of dry-type transformer Main Insulation Structure of Electric, adopts the dry-type transformer of this structure, and volume is little, cost is low, has satisfied instructions for use.
The purpose of this utility model is achieved through the following technical solutions:
A kind of dry-type transformer Main Insulation Structure of Electric is characterized in that: this structure comprises the one group of insulating cylinder that is arranged between high pressure winding and low pressure winding, and described one group of height insulating cylinder inequality is set in qually spaced between high pressure winding and the low pressure winding; Be provided with the fixedly cushion block that is used for fixing high pressure winding, low pressure winding and one group of insulating cylinder relative position at the two ends of one group of insulating cylinder.
In the utility model, one group of insulating cylinder is a layer glass fiber epoxy cylinder.Described fixedly cushion block comprises fixedly cushion block and fixing cushion block down, on fixedly cushion block be arranged on the upper end of one group of insulating cylinder; Following fixedly cushion block is arranged on the lower end of one group of insulating cylinder; Fixedly be equipped with and one group of mounting groove that the insulating cylinder height is suitable on the cushion block with following at last fixedly cushion block.One group of insulating cylinder is fixed together by mounting groove and high pressure winding and low pressure winding.Fixedly cushion block can be made by resin material.
The utility model is provided with two-layer book insulating cylinder between the high and low pressure winding, the insulation distance of equi-spaced apart high and low pressure winding.The height of insulating cylinder is done not contour design, and two ends are fixed with the resin cushion block.Adopt the dry-type transformer of this structural design, can effectively reduce the insulation distance of high and low pressure winding, increase the creepage distance of winding overhang the iron yoke.Compared with prior art, the utility model volume is little, cost is low, and volume can reduce about 5%, and it is about about 8% that cost reduces, and the sound reduces significantly when doing withstand voltage test, has satisfied instructions for use.
The utility model is applicable in the insulation system of high and low pressure winding of 20kV electric pressure.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of double hyer insulation tube in the utility model;
Fig. 3 goes up the fixedly structural representation of cushion block in the utility model.
Embodiment
A kind of dry-type transformer Main Insulation Structure of Electric described in the utility model, see Fig. 1, this structure comprises that 1, one group of height of the one group of insulating cylinder insulating cylinder 1 inequality that is arranged on 12 of high pressure winding 11 and low pressure windings is set in qually spaced between high pressure winding 11 and the low pressure winding 12.In the present embodiment, one group of insulating cylinder 1 is a layer glass fiber epoxy cylinder.For reaching better insulation effect, one group of insulating cylinder 1 also can be three layers or other quantity as required.Fig. 2 is the structural representation of double hyer insulation tube in the utility model.Be provided with the fixedly cushion block 2 that is used for fixing high pressure winding 11, low pressure winding 12 and insulating cylinder 1 relative position at the two ends of two-layer insulating cylinder 1.Fixedly cushion block 2 comprises fixedly cushion block 21 and fixing cushion block 22 down, on fixedly cushion block 21 be arranged on the upper end of insulating cylinder 1; Following fixedly cushion block 22 is arranged on the lower end of insulating cylinder 1; Fixedly be equipped with the mounting groove 23 suitable on the cushion block 22 at last fixedly cushion block 21 with following with the insulating cylinder height.Insulating cylinder 1 is fixed together by mounting groove 23 and high pressure winding 11 and low pressure winding 12.Fixedly cushion block 2 can be made by resin material.Fig. 3 goes up the fixedly structural representation of cushion block in the utility model.
Adopt the dry-type transformer of the utility model structural design, can effectively reduce the insulation distance of high and low pressure winding, increase the creepage distance of winding overhang the iron yoke.Volume of transformer can reduce about 5%, and cost reduces about about 8%.
Claims (3)
1. dry-type transformer Main Insulation Structure of Electric, it is characterized in that: this structure comprises the one group of insulating cylinder (1) that is arranged between high pressure winding (11) and low pressure winding (12), and described one group of height insulating cylinder (1) inequality is set in qually spaced between high pressure winding (11) and the low pressure winding (12); Be provided with the fixedly cushion block (2) that is used for fixing high pressure winding (11), low pressure winding (12) and one group of insulating cylinder (1) relative position at the two ends of one group of insulating cylinder (1).
2. dry-type transformer Main Insulation Structure of Electric according to claim 1 is characterized in that: one group of insulating cylinder (1) is a layer glass fiber epoxy cylinder.
3. dry-type transformer Main Insulation Structure of Electric according to claim 1 is characterized in that: described fixedly cushion block (2) comprises fixedly cushion block (21) and fixing cushion block (22) down, on fixedly cushion block (21) be arranged on the upper end of one group of insulating cylinder (1); Following fixedly cushion block (22) is arranged on the lower end of one group of insulating cylinder (1); At last fixedly cushion block (21) with down fixedly be equipped with the mounting groove (23) highly suitable on the cushion block (22) with one group of insulating cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205738103U CN201812656U (en) | 2010-10-22 | 2010-10-22 | Main insulating structure of dry transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205738103U CN201812656U (en) | 2010-10-22 | 2010-10-22 | Main insulating structure of dry transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201812656U true CN201812656U (en) | 2011-04-27 |
Family
ID=43895595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205738103U Expired - Fee Related CN201812656U (en) | 2010-10-22 | 2010-10-22 | Main insulating structure of dry transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201812656U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158300A (en) * | 2015-04-24 | 2016-11-23 | 上海飞晶电气股份有限公司 | A kind of dry-type transformer main airway insulation system of tape insulation cylinder |
| CN108831716A (en) * | 2018-08-07 | 2018-11-16 | 江苏宏源电气有限责任公司 | A kind of dry-type transformer insulation system |
-
2010
- 2010-10-22 CN CN2010205738103U patent/CN201812656U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158300A (en) * | 2015-04-24 | 2016-11-23 | 上海飞晶电气股份有限公司 | A kind of dry-type transformer main airway insulation system of tape insulation cylinder |
| CN108831716A (en) * | 2018-08-07 | 2018-11-16 | 江苏宏源电气有限责任公司 | A kind of dry-type transformer insulation system |
| CN108831716B (en) * | 2018-08-07 | 2019-11-22 | 江苏宏源电气有限责任公司 | A kind of dry-type transformer insulation system |
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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: 20110427 Termination date: 20141022 |
|
| EXPY | Termination of patent right or utility model |