CN203535992U - Local reinforced insulation transposed lead - Google Patents
Local reinforced insulation transposed lead Download PDFInfo
- Publication number
- CN203535992U CN203535992U CN201320644796.5U CN201320644796U CN203535992U CN 203535992 U CN203535992 U CN 203535992U CN 201320644796 U CN201320644796 U CN 201320644796U CN 203535992 U CN203535992 U CN 203535992U
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- reinforced insulation
- local
- transposed
- transposed conductor
- insulation layer
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- 238000009413 insulation Methods 0.000 title claims abstract description 95
- 230000017105 transposition Effects 0.000 claims abstract description 36
- 239000004020 conductor Substances 0.000 claims description 45
- 238000012946 outsourcing Methods 0.000 claims description 14
- 230000004888 barrier function Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 230000000191 radiation effect Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 239000002966 varnish Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Insulating Of Coils (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model provides a local reinforced insulation transposed lead which can solve problems of a large overall insulation thickness and poor heat radiation effect of a conventional local reinforced insulation transposed lead, and thus guarantees the anti-short-circuit capability of a coil. The local reinforced insulation transposed lead comprises a transposed wire core and an outer lapping insulating layer. The transposed wire core includes a plurality of enamelled flat wires which combined and form two rows with width surfaces are in mutual contact, and transposition processing in the same rotation direction is conducted on upper surfaces and lower surfaces of the two rows of enamelled flat wires along the narrow surfaces. The outer lapping insulating layer covers the outside of the transposed wire core. The local reinforced insulation transposed lead is characterized by further comprising an intermediate reinforced insulating layer which is positioned between the transposed wire core and the outer lapping insulating layer; and the intermediate reinforced insulating layer is disposed outside one or more side surfaces of the transposed wire core on the basis of the requirement of local reinforced insulation of the transposed lead.
Description
Technical field
The utility model relates to transposed conductor processing field, is specially a kind of local reinforced insulation transposed conductor.
Background technology
Large-capacity power Transformer Winding adopts transposed conductor more at present, it is one of critical component in transformer, the effect of voltage withstands shocks, under the effect of surge voltage, between winding wire cake, always acting on compared with normal working condition is high potential difference, especially in the inner side of overhang and winding, near slivering, being the position that creeping discharge easily occurs, is also an insulation edge weak spot, and the transposed conductor that is therefore positioned at this place need to be done local reinforced insulation processing conventionally.Common transposed conductor structure be by transposed conductor core, outsourcing insulation 5 forms, see Fig. 1, transposed conductor core is by enameled sheet wire, middle liner paper 6 forms, enameled sheet wire comprises metal flat conductor 1, metal flat conductor 1 is externally coated with insulating varnish 2, when transposed conductor need to be when some or certain several direction be carried out local reinforced insulation by increasing insulation thickness because of technological requirement, the major way adopting is to increase transposed conductor integral outsourcing insulation thickness, or in coil manufacturing process, carry out the wrapped insulating strength that carries out of craft, its shortcoming is that transposed conductor integral insulation thickness is bigger than normal, affected the radiating effect of transposed conductor, thereby cause the anti-sudden short circuit ability of coil to decline.
Summary of the invention
For the problems referred to above, the utility model provides a kind of local reinforced insulation transposed conductor, it can solve the problem that transposed conductor integral insulation thickness is large, radiating effect is poor that existing local reinforced insulation transposed conductor exists, thereby guarantees the anti-sudden short circuit ability of coil.
Its technical scheme is such, it comprises transposition core and outsourcing insulation, described transposition core comprises some enameled sheet wires, described some enameled sheet wires are combined into two row that wide face is in contact with one another, and on described two row enameled sheet wires and below along leptoprosopy, do the same transposition that turns to and process, it is outside that described outsourcing insulation is coated on described transposition core, it is characterized in that: it also comprises middle reinforced insulation layer, in the middle of described, reinforced insulation layer is between described transposition core and outsourcing insulation, in the middle of described, reinforced insulation layer is arranged at outside one or more sides of transposition core according to the needs of the local reinforced insulation of transposed conductor.
It is further characterized in that:
In the middle of described, reinforced insulation layer is single plane type, and it is arranged at outside the side of the one or more single directions of described transposition core;
In the middle of described, reinforced insulation layer is L-type, and it is arranged at outside the side of the adjacent both direction of described transposition core;
In the middle of described, reinforced insulation layer is U-shaped, and it is arranged at outside the side of adjacent three directions of described transposition core.
It is further characterised in that:
In the middle of described, reinforced insulation layer consists of one deck insulating paper at least;
Described insulating paper thickness d≤6mm.
Its further feature is also:
It also comprises interior bag insulating barrier, and described interior bag insulating barrier is arranged between described transposition core and described middle reinforced insulation layer;
Between the described two row enameled sheet wires of described transposition core, lining is equipped with middle liner paper;
Described outsourcing insulation adopts any in insulating paper or grid bundling belt.
By local reinforced insulation transposed conductor of the present utility model, for large-capacity power Transformer Winding, its beneficial effect is:
(1) in the middle of it, reinforced insulation layer can need to add according to actual winding outside the side of transposition core different directions, and the method for more traditional increase integral insulation layer can effectively reduce transposed conductor integral insulation thickness, guarantees the radiating effect of transposed conductor;
(2) reinforced insulation layer consists of one deck insulating paper at least in the middle of it, and the insulating paper thickness d≤6mm adopting, it may carry out flexible minor insulation thickness by the number of plies, the thickness of reinforced insulation layer insulating paper in the middle of regulating, meet the protection to special insulation position insulation weak spot in coil winding process, thereby improve the impact resistance of winding coil, guarantee the concrete enough anti-sudden short circuit abilities of coil of coiling;
(3) it can also need to add interior bag insulating barrier according to actual coiling between transposition core and middle reinforced insulation layer, to guarantee that the integral insulation thickness of transposed conductor meets coiling requirement.
Accompanying drawing explanation
Fig. 1 is existing transposed conductor schematic cross-section;
Fig. 2 is the local reinforced insulation transposed conductor of the utility model schematic cross-section;
Fig. 3 is the layout schematic diagram of the middle reinforced insulation layer of single plane type in the local reinforced insulation transposed conductor of the utility model;
Fig. 4 is the layout schematic diagram of the middle reinforced insulation layer of L-type in the local reinforced insulation transposed conductor of the utility model;
Fig. 5 is the layout schematic diagram of the another kind of execution mode of the middle reinforced insulation layer of L-type in the local reinforced insulation transposed conductor of the utility model;
Fig. 6 is the layout schematic diagram of U-shaped middle reinforced insulation layer the first execution mode in the local reinforced insulation transposed conductor of the utility model;
Fig. 7 is the layout schematic diagram of U-shaped middle reinforced insulation layer the second execution mode in the local reinforced insulation transposed conductor of the utility model;
Fig. 8 is the layout schematic diagram of U-shaped middle the third execution mode of reinforced insulation layer in the local reinforced insulation transposed conductor of the utility model;
Fig. 9 is the layout schematic diagram of the 4th kind of execution mode of U-shaped middle reinforced insulation layer in the local reinforced insulation transposed conductor of the utility model.
Embodiment
See Fig. 2, the local reinforced insulation transposed conductor of the utility model comprises transposition core, interior bag insulating barrier 3, middle reinforced insulation layer 4 and outsourcing insulation 5, transposition core comprises some enameled sheet wires, enameled sheet wire comprises metal flat conductor 1, metal flat conductor 1 is externally coated with insulating varnish 2, some enameled sheet wires are combined into two row that wide face is in contact with one another, and on two row enameled sheet wires and below along leptoprosopy, do the same transposition that turns to and process, outsourcing insulation 5 is coated on the most external of transposition core, middle reinforced insulation layer 4 is between transposition core and outsourcing insulation 5, interior bag insulating barrier 4 need to be arranged between transposition core and middle reinforced insulation layer 4 according to actual coil coiling, middle reinforced insulation layer 4 is arranged at outside one or more sides of transposition core according to the needs of the local reinforced insulation of transposed conductor, middle reinforced insulation layer 5 consists of one deck insulating paper at least, insulating paper thickness d≤6mm.Between two row enameled sheet wires of transposition core, can require lining dress middle liner paper 6 according to coil winding; Outsourcing insulation 5 adopts any in insulating paper or grid bundling belt.
Below in conjunction with accompanying drawing, specifically describe the execution mode of middle reinforced insulation layer 4:
See Fig. 3, middle reinforced insulation layer 4 is single plane type, and it is added on respectively outside four single sides of transposition core;
See Fig. 4 and Fig. 5, middle reinforced insulation layer 4 is L-type, and its integral body is added on outside the side of the adjacent both direction of transposition core;
See Fig. 6, Fig. 7, Fig. 8 and Fig. 9, middle reinforced insulation layer 4 is U-shaped, and it is wholy set in outside the side of adjacent three directions of transposition core.
Claims (9)
1. a local reinforced insulation transposed conductor, it comprises transposition core and outsourcing insulation, described transposition core comprises some enameled sheet wires, described some enameled sheet wires are combined into two row that wide face is in contact with one another, and on described two row enameled sheet wires and below along leptoprosopy, do the same transposition that turns to and process, it is outside that described outsourcing insulation is coated on described transposition core, it is characterized in that: it also comprises middle reinforced insulation layer, in the middle of described, reinforced insulation layer is between described transposition core and outsourcing insulation, in the middle of described, reinforced insulation layer is arranged at outside one or more sides of transposition core according to the needs of the local reinforced insulation of transposed conductor.
2. a kind of local reinforced insulation transposed conductor according to claim 1, is characterized in that: in the middle of described, reinforced insulation layer is single plane type, and it is arranged at outside the side of the one or more single directions of described transposition core.
3. a kind of local reinforced insulation transposed conductor according to claim 1, is characterized in that: in the middle of described, reinforced insulation layer is L-type, and it is arranged at outside the side of the adjacent both direction of described transposition core.
4. a kind of local reinforced insulation transposed conductor according to claim 1, is characterized in that: in the middle of described, reinforced insulation layer is U-shaped, and it is arranged at outside the side of adjacent three directions of described transposition core.
5. according to arbitrary described a kind of local reinforced insulation transposed conductor in claim 1,2,3,4, it is characterized in that: in the middle of described, reinforced insulation layer consists of one deck insulating paper at least.
6. a kind of local reinforced insulation transposed conductor according to claim 5, is characterized in that: described insulating paper thickness d≤6mm.
7. according to arbitrary described a kind of local reinforced insulation transposed conductor in claim 1,2,3,4,6, it is characterized in that: it also comprises interior bag insulating barrier, described interior bag insulating barrier is arranged between described transposition core and described middle reinforced insulation layer.
8. a kind of local reinforced insulation transposed conductor according to claim 7, is characterized in that: between the described two row enameled sheet wires of described transposition core, lining is equipped with middle liner paper.
9. a kind of local reinforced insulation transposed conductor according to claim 8, is characterized in that: described outsourcing insulation adopts any in insulating paper or grid bundling belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320644796.5U CN203535992U (en) | 2013-10-19 | 2013-10-19 | Local reinforced insulation transposed lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320644796.5U CN203535992U (en) | 2013-10-19 | 2013-10-19 | Local reinforced insulation transposed lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203535992U true CN203535992U (en) | 2014-04-09 |
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ID=50422174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320644796.5U Expired - Lifetime CN203535992U (en) | 2013-10-19 | 2013-10-19 | Local reinforced insulation transposed lead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203535992U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531276A (en) * | 2013-10-19 | 2014-01-22 | 无锡锡洲电磁线有限公司 | Locally-reinforced insulation transposed conductor |
-
2013
- 2013-10-19 CN CN201320644796.5U patent/CN203535992U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531276A (en) * | 2013-10-19 | 2014-01-22 | 无锡锡洲电磁线有限公司 | Locally-reinforced insulation transposed conductor |
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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: 20140409 |