CN202615820U - 71-wire giant transposed conductor for nuclear power host machine - Google Patents
71-wire giant transposed conductor for nuclear power host machine Download PDFInfo
- Publication number
- CN202615820U CN202615820U CN 201220203455 CN201220203455U CN202615820U CN 202615820 U CN202615820 U CN 202615820U CN 201220203455 CN201220203455 CN 201220203455 CN 201220203455 U CN201220203455 U CN 201220203455U CN 202615820 U CN202615820 U CN 202615820U
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- wire
- nuclear power
- transposed
- copper flat
- conductor
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- Expired - Lifetime
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Abstract
The utility model relates to a 71-wire giant transposed conductor for a nuclear power host machine, composed of bare copper flat wires, a middle core lining paper layer, insulating varnish layers and a common paper insulating layer, wherein each bare copper flat wire is coated with the insulating varnish layer to form a varnished copper flat wire; the core wire thereof is composed of an odd number of varnished copper flat wires; the varnished copper flat wires are overlapped on each other on the wide faces thereof and arranged into two rows; the middle core lining paper layer is arranged between the two rows; the upper faces and the lower faces of the two rows of varnished copper flat wires are turned and transposed along the narrow faces so as to form a single-strand core wire; and the core wire is wound and wrapped with the common paper insulating layer. The 71-wire giant transposed conductor is capable of greatly increasing the effective sectional area of the whole strand of conductor, thereby greatly improving the conducting current and the conveying power of the conductor and meeting the requirement for large capacity of output of the main transformer in a nuclear power station; and the capacity increasing realized by the 71-wire giant transposed conductor is 1.3-5 times greater than that realized by other transposed conductors.
Description
Technical field
The utility model belongs to the electric equipment technical field, is specifically related to a kind of nuclear power main frame with 71 huge transposed conductors.
Background technology
For implementing the energy strategy target of national energy-saving and emission-reduction, the nuclear power station engineering is built in country's beginning on a large scale in coastal provinces in recent years, and this project main frame transformer capacity is big, voltage is high, security performance requires tight.As the winding wire of main frame transformer heart and blood vessel, because of big electric current, high-tension demand, adopt special wire gauge just can satisfy the demand equally; 71 huge semihard self-adhering transposed conductors that its low pressure winding needs put the research and development appearance before this; This " 71 huge self-adhesion semihard enamel-cover paper bag transposed conductors ", wire gauge is: 1.53*5.9*71/0.75 (the a*b*n/ Δ, wherein a is single copper conductor thickness; B is a thickness; N is parallelly connected radical, and Δ is a paper insulation thickness), the lead total cross section reaches 640mm
2, and common transposed conductor parallel connection radical is no more than 51, effective conductive cross-sectional area of this type of lead is general≤and 500mm
2, and the generate output of China's nuclear power station is relatively large, carries the corresponding increase of electric current of electricity, must adopt sectional area of wire to reach 640mm
271 transposed conductors could satisfy.Because of this transposed conductor more special; The depth-width ratio example reaches 4.8:1; When take-up reel or the use of coiling winding, its leptoprosopy is close to inner tube wall, and promptly short transverse is along the circumference coiling; How to guarantee its sector deformed back lead do not cave in, not debunching, do not tilt and the circular arc rate radius of writing music enough, to take a series of measure to realize technically.
Summary of the invention
The purpose of the utility model is to provide a kind of nuclear power main frame with 71 huge transposed conductors.
The nuclear power main frame that the utility model proposes is with 71 huge transposed conductors; Form by bare copper flat wire 1, SMIS lining paper layer 2, insulation enamelled coating 3 and public paper insulation layer 4; Wherein: every bare copper flat wire 1 outer surface all is coated with insulation enamelled coating 3; Constitute enameling copper strap wire, its heart yearn is coincided at wide by odd number root enameling copper strap wire each other, is arranged in two row; Between two row SMIS lining paper layer 2 is arranged; And two row enameling copper strap wires top and followingly do along leptoprosopy and turn to transposition, stranded formation heart yearn bundle; The outer felt of heart yearn bundle around outside be surrounded by public paper insulation layer 4.
In the utility model, said SMIS lining paper layer 2 thickness are 0.10-0.15mm.
In the utility model, said public paper insulation layer 4 thickness are 0.72-0.78mm.
The beneficial effect of the utility model is: the utility model can increase the net sectional area of whole strand of lead greatly; Can improve lead conductive current and transmission power greatly; Satisfy the nuclear power station main transformer and export big capacity needs, than 1.3-5 times more than of other transposed conductor increase-volumes.
Description of drawings
Fig. 1 is the structural diagrams of the utility model.
Label among the figure: 1 is bare copper flat wire, and 2 is SMIS lining paper layer, and 3 are the insulation enamelled coating, and 4 is public paper insulation layer.
Embodiment
Combine accompanying drawing to further specify the utility model through embodiment below
.
Embodiment 1:
Embodiment 1: 71 odd number root enameling copper strap wires are coincided by structure two row shown in Figure 1, and the every bare copper flat wire 1 outer insulation enamelled coating 3 that all is coated with constitutes enameling copper strap wire, and its heart yearn is coincided at wide by odd number root enameling copper strap wire each other, is arranged in two row; The centre has SMIS lining paper layer 2 to isolate, and is combined into the heart yearn bundle, the public paper insulation layer 4 of rhythmic then winding outsourcing.Wherein, the thickness of enameling copper strap wire 1 is 1.53mm, and width is 5.9mm; Nearly 71 of this transposed conductor radicals are combined into wrapped public high strength, the high withstand voltage insulating paper material behind the heart yearn bundle, and the product line height reaches 62.67mm; And width is merely 13.08, mm, and depth-width ratio is 4.8:1 (general transposed conductor is no more than 4:1); Therefore before the braiding transposition and molding, need to calculate, set ultralimit but the extra small pitch that must be perfectly safe, the paper bag insulation must be adopted high mechanical properties, high heat-resistance index; Extension, shrinkage, all good insulating papers of tension force come wrapped; Must accomplish in the production process that the production scene prevents floating dust, antistatic, other liquids such as anti-machine oil pollute.In the close factory building of full envelope, accomplish.
Claims (3)
1. a nuclear power main frame is with 71 huge transposed conductors; Form by bare copper flat wire (1), SMIS lining paper layer (2), insulation enamelled coating (3) and public paper insulation layer (4); It is characterized in that: the outer insulation enamelled coating (3) that all is coated with of every bare copper flat wire (1), constitute enameling copper strap wire, its heart yearn is made up of odd number root enameling copper strap wire; Enameling copper strap wire is coincided at wide each other, be arranged in two row; Between two row SMIS lining paper layer (2) is arranged; And two row enameling copper strap wires top and followingly do along leptoprosopy and turn to transposition, stranded formation sub-thread heart yearn; The outer felt of heart yearn around outside be surrounded by public paper insulation layer (4).
2. nuclear power main frame according to claim 1 is characterized in that with 71 huge transposed conductors said SMIS lining paper layer (2) thickness is 0.10-0.15mm.
3. nuclear power main frame according to claim 1 is characterized in that with 71 huge transposed conductors said public paper insulation layer (4) thickness is 0.72-0.78mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220203455 CN202615820U (en) | 2012-05-09 | 2012-05-09 | 71-wire giant transposed conductor for nuclear power host machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220203455 CN202615820U (en) | 2012-05-09 | 2012-05-09 | 71-wire giant transposed conductor for nuclear power host machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202615820U true CN202615820U (en) | 2012-12-19 |
Family
ID=47349496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220203455 Expired - Lifetime CN202615820U (en) | 2012-05-09 | 2012-05-09 | 71-wire giant transposed conductor for nuclear power host machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202615820U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105916364A (en) * | 2016-05-11 | 2016-08-31 | 北京小米移动软件有限公司 | Terminal with display function |
-
2012
- 2012-05-09 CN CN 201220203455 patent/CN202615820U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105916364A (en) * | 2016-05-11 | 2016-08-31 | 北京小米移动软件有限公司 | Terminal with display function |
| CN105916364B (en) * | 2016-05-11 | 2018-11-20 | 北京小米移动软件有限公司 | A kind of terminal having a display function |
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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: 20121219 |