CN103531276A - Locally-reinforced insulation transposed conductor - Google Patents
Locally-reinforced insulation transposed conductor Download PDFInfo
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- CN103531276A CN103531276A CN201310490621.8A CN201310490621A CN103531276A CN 103531276 A CN103531276 A CN 103531276A CN 201310490621 A CN201310490621 A CN 201310490621A CN 103531276 A CN103531276 A CN 103531276A
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- reinforced insulation
- transposed conductor
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Abstract
The invention provides a locally-reinforced insulation transposed conductor which can solve the problems of an existing locally-reinforced insulation transposed conductor that the whole insulation thickness is great and the heat radiation effect is poor so as to guarantee the sudden short-circuit resisting capability of a coil. The locally-reinforced insulation transposed conductor comprises a transposed wire core and an externally-covered insulating layer, wherein the transposed wire core comprises a plurality of enameled rectangular section conductors; a plurality of the enameled rectangular section conductors are combined into two rows with mutually-contacted wide faces; the upper faces and the lower faces of the two rows of the enameled rectangular section conductors are subjected to transposing treatment in the same rotary direction along narrow faces; the externally-covered insulating layer covers the transposed wire core; and the locally-reinforced insulation transposed conductor is characterized by further comprising a middle reinforced insulation layer; the middle reinforced insulation layer is located between the transposed wire core and the externally-covered insulating layer; and the middle reinforced insulation layer is arranged outside one or more side faces of the transposed wire core according to the locally-reinforced insulation requirements of the transposed conductor.
Description
Technical field
The present invention relates to transposed conductor processing field, be specially 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 invention provides 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 invention, 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 present invention 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 present invention;
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 present invention;
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 present invention;
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 present invention;
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 present invention;
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 present invention;
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 present invention.
Embodiment
See Fig. 2, the local reinforced insulation transposed conductor of the present invention 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. 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. 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. 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. 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 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. local reinforced insulation transposed conductor according to claim 5, is characterized in that: described insulating paper thickness d≤6mm.
7. according to arbitrary described 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. 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. 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 |
|---|---|---|---|
| CN201310490621.8A CN103531276A (en) | 2013-10-19 | 2013-10-19 | Locally-reinforced insulation transposed conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310490621.8A CN103531276A (en) | 2013-10-19 | 2013-10-19 | Locally-reinforced insulation transposed conductor |
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| Publication Number | Publication Date |
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| CN103531276A true CN103531276A (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310490621.8A Pending CN103531276A (en) | 2013-10-19 | 2013-10-19 | Locally-reinforced insulation transposed conductor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934154A (en) * | 2015-06-24 | 2015-09-23 | 无锡锡洲电磁线有限公司 | U-shaped lining paper adding device for copper strap wire |
| CN108831607A (en) * | 2018-07-26 | 2018-11-16 | 江苏中容电气有限公司 | A kind of single small bore transposed conductor |
| CN109003708A (en) * | 2018-07-26 | 2018-12-14 | 江苏中容电气有限公司 | A kind of reinforcement property insulation net packet semihard self-adhering transposed conductor |
Citations (6)
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| CN200944341Y (en) * | 2006-04-29 | 2007-09-05 | 阿斯塔导线有限公司 | Multi-conbination parallel wires with protection insulator |
| CN201549337U (en) * | 2009-11-16 | 2010-08-11 | 保定天威集团有限公司 | Transposed conductor of transformer |
| CN201590274U (en) * | 2009-09-28 | 2010-09-22 | 保定天威集团有限公司 | High-reliability screen pack transposition conducting wire |
| CN101882483A (en) * | 2010-07-12 | 2010-11-10 | 无锡锡洲电磁线有限公司 | Novel local reinforced insulation type transposed conducting wire |
| CN102496406A (en) * | 2011-12-06 | 2012-06-13 | 保定天威集团有限公司 | Mesh package transposed conducting wire with local insulating protection layers |
| CN203535992U (en) * | 2013-10-19 | 2014-04-09 | 无锡锡洲电磁线有限公司 | Local reinforced insulation transposed lead |
-
2013
- 2013-10-19 CN CN201310490621.8A patent/CN103531276A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200944341Y (en) * | 2006-04-29 | 2007-09-05 | 阿斯塔导线有限公司 | Multi-conbination parallel wires with protection insulator |
| CN201590274U (en) * | 2009-09-28 | 2010-09-22 | 保定天威集团有限公司 | High-reliability screen pack transposition conducting wire |
| CN201549337U (en) * | 2009-11-16 | 2010-08-11 | 保定天威集团有限公司 | Transposed conductor of transformer |
| CN101882483A (en) * | 2010-07-12 | 2010-11-10 | 无锡锡洲电磁线有限公司 | Novel local reinforced insulation type transposed conducting wire |
| CN102496406A (en) * | 2011-12-06 | 2012-06-13 | 保定天威集团有限公司 | Mesh package transposed conducting wire with local insulating protection layers |
| CN203535992U (en) * | 2013-10-19 | 2014-04-09 | 无锡锡洲电磁线有限公司 | Local reinforced insulation transposed lead |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934154A (en) * | 2015-06-24 | 2015-09-23 | 无锡锡洲电磁线有限公司 | U-shaped lining paper adding device for copper strap wire |
| CN108831607A (en) * | 2018-07-26 | 2018-11-16 | 江苏中容电气有限公司 | A kind of single small bore transposed conductor |
| CN109003708A (en) * | 2018-07-26 | 2018-12-14 | 江苏中容电气有限公司 | A kind of reinforcement property insulation net packet semihard self-adhering transposed conductor |
| CN109003708B (en) * | 2018-07-26 | 2023-12-29 | 江苏中容电气有限公司 | Semi-hard self-adhesive transposed conductor of reinforced insulating net bag |
| CN108831607B (en) * | 2018-07-26 | 2024-01-09 | 江苏中容电气有限公司 | Single small-section transposed conductor |
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Application publication date: 20140122 |
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