CN203596259U - Epoxy poured dry-type transformer longitudinal insulation structure - Google Patents
Epoxy poured dry-type transformer longitudinal insulation structure Download PDFInfo
- Publication number
- CN203596259U CN203596259U CN201320727308.7U CN201320727308U CN203596259U CN 203596259 U CN203596259 U CN 203596259U CN 201320727308 U CN201320727308 U CN 201320727308U CN 203596259 U CN203596259 U CN 203596259U
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- Prior art keywords
- layer
- transformer longitudinal
- insulating structure
- cloth
- former line
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- Expired - Lifetime
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- 239000004593 Epoxy Substances 0.000 title claims abstract description 33
- 238000009413 insulation Methods 0.000 title claims abstract description 31
- 239000004744 fabric Substances 0.000 claims abstract description 23
- 239000011521 glass Substances 0.000 claims abstract description 22
- 229920006267 polyester film Polymers 0.000 claims abstract description 12
- 239000004020 conductor Substances 0.000 claims description 19
- 238000010276 construction Methods 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 abstract 5
- 239000011229 interlayer Substances 0.000 abstract 2
- 239000003365 glass fiber Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Insulating Of Coils (AREA)
Abstract
The utility model relates to the field of transformer insulation, in particular to an epoxy poured dry-type transformer longitudinal insulation structure. The epoxy poured dry-type transformer longitudinal insulation structure comprises a coil structure, interlayer insulation components and turn insulation components. The coil structure is formed by winding sectional multi-layer conductive original wires, the interlayer insulation components comprise DMD layers and epoxy glass gridding cloth layers, the DMD layers and the epoxy glass gridding cloth layers are arranged between every two adjacent conductive original wires alternatively, and the turn insulation components are F-level polyester films, and are arranged between every two adjacent conductive original wires. The epoxy poured dry-type transformer longitudinal insulation structure is small in insulated conduction temperature rise, high in filling rate of coil space volume and low in manufacturing cost.
Description
Technical field
The utility model relates to transformer insulated field, particularly a kind of epoxy cast dry transformer longitudinal insulating structure.
Background technology
Layer insulation between the former line of existing epoxy cast dry transformer wire adopts the grid cloth of a 0.5mm, and layer insulation thickness is large, and layer insulation conduction temperature rise is also larger.And turn-to-turn insulation adopts the glass fiber covered wire of 0.4mm, coiling is loose, and radial nargin is large, and coil space volume filling rate is low.
Utility model content
It is little that the purpose of this utility model is to provide a kind of layer insulation conduction temperature rise, and coil space volume filling rate is high, and the dry-type transformer longitudinal insulating structure of low cost of manufacture.For this reason, the utility model proposes a kind of epoxy cast dry transformer longitudinal insulating structure.
The technical scheme that the utility model provides is:
A kind of epoxy cast dry transformer longitudinal insulating structure, comprising:
Loop construction, it is formed by the former wire-wound system of segmentation multi-layer conductor leads;
Layer insulation, it comprises DMD layer and expoxy glass grid layer of cloth, DMD layer and expoxy glass grid layer of cloth are arranged alternately between the adjacent former line of every two layer conductor;
Turn insulation, it is F level polyester film, is arranged between the adjacent former line of two circle wires.
Preferably, in described epoxy cast dry transformer longitudinal insulating structure, described DMD layer is arranged between the former line of two layer conductors of odd-level, and described expoxy glass grid layer of cloth is arranged between the former line of two layer conductors of even level.
Preferably, in described epoxy cast dry transformer longitudinal insulating structure, described DMD layer is arranged between the former line of two layer conductors of even level, and described expoxy glass grid layer of cloth is arranged between the former line of two layer conductors of odd-level.
Preferably, in described epoxy cast dry transformer longitudinal insulating structure, described turn insulation layer is three layers of F level 0.04mm laminated polyester film, and described turn insulation layer is arranged on the periphery of the former line of every circle wire, is six layers of F level 0.04mm laminated polyester film between the adjacent former line of two circle wires.
Preferably, in described epoxy cast dry transformer longitudinal insulating structure, the thickness of described DMD layer is 0.18mm or 0.2mm.
Preferably, in described epoxy cast dry transformer longitudinal insulating structure, the thickness of described expoxy glass grid layer of cloth is 0.45mm or 0.5mm.
Preferably, in described epoxy cast dry transformer longitudinal insulating structure, described expoxy glass grid layer of cloth forms the cast passage of filler resin.
In epoxy cast dry transformer longitudinal insulating structure described in the utility model, DMD layer itself has very high-breakdown-voltage, according to test data, 1 layer of minimum withstand voltage 5KV of 0.2mmDMD layer, between the adjacent former line of every two layer conductor, be arranged alternately respectively DMD layer and expoxy glass grid layer of cloth, compare the expoxy glass grid layer of cloth that traditional layer insulation only adopts 1 layer of 0.5mm, reduced layer insulation thickness, and reduced layer insulation conduction temperature rise.Between the adjacent former line of two circle wires, separate with six laminated polyester films, thickness is 0.24mm, damage in insulation can effectively prevent coiling time, healthy without glass fiber dust infringement in winding process, compare traditional employing 0.4mm glass fiber covered wire, coiling is tightr, reduce radial nargin, when improving winding efficiency, can improve coil space volume filling rate, reduce insulated conductive temperature rise simultaneously, reduce manufacturing cost.
Accompanying drawing explanation
Fig. 1 is epoxy cast dry transformer longitudinal insulating structure schematic diagram described in the utility model.
Embodiment
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, will be briefly described needed accompanying drawing in embodiment or description of the Prior Art below.
The utility model provides a kind of epoxy cast dry transformer longitudinal insulating structure, as shown in Figure 1, comprising:
Loop construction 1, it is formed by former line 2 coilings of segmentation multi-layer conductor leads;
Layer insulation, it comprises DMD layer 3 and expoxy glass grid layer of cloth 4, DMD layer and expoxy glass grid layer of cloth are arranged alternately between the adjacent former line of every two layer conductor;
Turn insulation 5, it is F level polyester film, is arranged between the adjacent former line of two circle wires.
In described epoxy cast dry transformer longitudinal insulating structure, described DMD layer is arranged between the former line of two layer conductors of odd-level, and described expoxy glass grid layer of cloth is arranged between the former line of two layer conductors of even level.
In described epoxy cast dry transformer longitudinal insulating structure, described DMD layer is arranged between the former line of two layer conductors of even level, and described expoxy glass grid layer of cloth is arranged between the former line of two layer conductors of odd-level.
In described epoxy cast dry transformer longitudinal insulating structure, described turn insulation layer is three layers of F level 0.04mm laminated polyester film, described turn insulation layer is arranged on the periphery of the former line of every circle wire, because the former line of every circle wire is all equipped with three layers of laminated polyester film outward, between the former line of adjacent two circle wire, be six layers of F level 0.04mm laminated polyester film, turn insulation thickness is 2 × 3 × 0.04=0.24mm, compare the F level double glass fiber film envelope curve of traditional employing 0.4mm, coiling is tightr, when improving winding efficiency, can improve coil space volume filling rate.
In described epoxy cast dry transformer longitudinal insulating structure, the thickness of described DMD layer is 0.18mm or 0.2mm.
In described epoxy cast dry transformer longitudinal insulating structure, the thickness of described expoxy glass grid layer of cloth is 0.45mm or 0.5mm.
In described epoxy cast dry transformer longitudinal insulating structure, described expoxy glass grid layer of cloth forms the cast passage of filler resin.
Although embodiment of the present utility model is open as above, but it is not restricted to listed utilization in specification and execution mode, it can be applied to the various fields of the present utility model that are applicable to completely, for those skilled in the art, can easily realize other modification, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend of describing.
Claims (7)
1. an epoxy cast dry transformer longitudinal insulating structure, is characterized in that, comprising:
Loop construction, it is formed by the former wire-wound system of segmentation multi-layer conductor leads;
Layer insulation, it comprises DMD layer and expoxy glass grid layer of cloth, DMD layer and expoxy glass grid layer of cloth are arranged alternately between the adjacent former line of every two layer conductor;
Turn insulation, it is F level polyester film, is arranged between the adjacent former line of two circle wires.
2. epoxy cast dry transformer longitudinal insulating structure as claimed in claim 1, is characterized in that, described DMD layer is arranged between the former line of two layer conductors of odd-level, and described expoxy glass grid layer of cloth is arranged between the former line of two layer conductors of even level.
3. epoxy cast dry transformer longitudinal insulating structure as claimed in claim 1, is characterized in that, described DMD layer is arranged between the former line of two layer conductors of even level, and described expoxy glass grid layer of cloth is arranged between the former line of two layer conductors of odd-level.
4. epoxy cast dry transformer longitudinal insulating structure as claimed in claim 2 or claim 3, it is characterized in that, described turn insulation layer is three layers of F level 0.04mm laminated polyester film, described turn insulation layer is arranged on the periphery of the former line of every circle wire, is six layers of F level 0.04mm laminated polyester film between the adjacent former line of two circle wires.
5. epoxy cast dry transformer longitudinal insulating structure as claimed in claim 4, is characterized in that, the thickness of described DMD layer is 0.18mm or 0.2mm.
6. epoxy cast dry transformer longitudinal insulating structure as claimed in claim 5, is characterized in that, the thickness of described expoxy glass grid layer of cloth is 0.45mm or 0.5mm.
7. epoxy cast dry transformer longitudinal insulating structure as claimed in claim 6, is characterized in that, described expoxy glass grid layer of cloth forms the cast passage of filler resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320727308.7U CN203596259U (en) | 2013-11-18 | 2013-11-18 | Epoxy poured dry-type transformer longitudinal insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320727308.7U CN203596259U (en) | 2013-11-18 | 2013-11-18 | Epoxy poured dry-type transformer longitudinal insulation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203596259U true CN203596259U (en) | 2014-05-14 |
Family
ID=50677124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320727308.7U Expired - Lifetime CN203596259U (en) | 2013-11-18 | 2013-11-18 | Epoxy poured dry-type transformer longitudinal insulation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203596259U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308672A (en) * | 2019-07-30 | 2019-10-08 | Oppo广东移动通信有限公司 | Electronic equipment, display panel and its sounding device |
| CN112768206A (en) * | 2020-12-24 | 2021-05-07 | 宁波宁变电力科技股份有限公司 | Epoxy-cast dry-type transformer winding capable of improving anti-cracking capacity |
| CN117577433A (en) * | 2024-01-16 | 2024-02-20 | 悉瑞绿色电气(苏州)有限公司 | Casting type sectional winding and manufacturing method thereof |
-
2013
- 2013-11-18 CN CN201320727308.7U patent/CN203596259U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308672A (en) * | 2019-07-30 | 2019-10-08 | Oppo广东移动通信有限公司 | Electronic equipment, display panel and its sounding device |
| CN110308672B (en) * | 2019-07-30 | 2021-09-17 | Oppo广东移动通信有限公司 | Electronic equipment, display panel and sound production device thereof |
| CN112768206A (en) * | 2020-12-24 | 2021-05-07 | 宁波宁变电力科技股份有限公司 | Epoxy-cast dry-type transformer winding capable of improving anti-cracking capacity |
| CN117577433A (en) * | 2024-01-16 | 2024-02-20 | 悉瑞绿色电气(苏州)有限公司 | Casting type sectional winding and manufacturing method thereof |
| CN117577433B (en) * | 2024-01-16 | 2024-03-26 | 悉瑞绿色电气(苏州)有限公司 | Casting type sectional winding and manufacturing method thereof |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140514 |