CN104091684A - Continuous coil for above-110kV three-dimensional wound core power transformer - Google Patents
Continuous coil for above-110kV three-dimensional wound core power transformer Download PDFInfo
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- CN104091684A CN104091684A CN201410375417.6A CN201410375417A CN104091684A CN 104091684 A CN104091684 A CN 104091684A CN 201410375417 A CN201410375417 A CN 201410375417A CN 104091684 A CN104091684 A CN 104091684A
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Abstract
The invention discloses a continuous coil for an above-110kV three-dimensional wound core power transformer. A three-dimensional triangular wound core column is wound with a coil in a vertically winding mode. The coil comprises a paper tube which is arranged outside the three-dimensional triangular wound core column in a sleeved mode. A support strip is arranged on the paper tube, and the support strip is wound with a plurality of coil cakes. Each coil cake comprises a reverse section wound by a wire from outside to inside and a forward section wound by a wire from inside to outside, and the reverse sections and the forward sections are alternatively arranged and are separated through insulating cushion blocks. Adjacent reverse sections and forward sections are jointed one another to form double-section units. At least one reverse section or one forward section is provided with an angle ring or an entangled coil cake in every two sets of double-section units. The continuous coil has more excellent usability, winding is tighter, and the structure is more compact. The structure combining the entangled coil cake and the angle ring is adopted for the interior of the coil, so that electric strength of the coil is guaranteed, the coil fill rate is increased, and overall mechanical strength of the coil is enhanced.
Description
Technical field
The present invention relates to the technical field of power equipment, be specifically related to the above three dimensional wound core power transformer of 110kV continuous winding.
Background technology
The high-tension coil of 110kV above transformer generally adopts the structure of " inner shield continous way " or " being entangled with continous way " at present, and set up static board at end winding, under superpotential impact that coil causes in atmospheric over-voltage or operation, still can normally work guaranteeing.But inner shield continuous winding structure need to be inserted shielding conductor at the turn-to-turn of work wire, and the wire filling rate of whole coil is reduced, and shielding conductor, not with the coiling of work wire, thereby has increased coiling operation during coiling, has improved cost of manufacture.And distance between traditional " high-low " of being entangled with continuous winding structure (or " high-in ") is larger, coil is compact not, and volume is larger.In addition, the static board of traditional 110kVA high-tension coil has also increased the height of transformer, and the cost of transformer is also increased thereupon.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of this invention is to provide a kind of compact conformation rationally, Short Circuit withstand and the strong continuous winding of overvoltage capabilities.
The technical solution adopted for the present invention to solve the technical problems is:
The above three dimensional wound core power transformer of 110kV continuous winding, described transformer comprises stereo-triangular wound core post,
On described stereo-triangular wound core post, by vertical, around mode, be wound with coil,
Described coil comprises the paper web being socketed in outside stereo-triangular wound core post, is provided with stay on paper web, is wound with a plurality of line cakes on stay,
Anti-section of comprising that wire outside in moves into of described line cake and wire are from inner positive section of outwards laying out, described anti-section and positive section is arranged alternately, and separate with the cushion block of insulation, adjacent anti-section interlinks and forms two segment units with positive section, in every two groups pairs of segment units, have at least in an anti-section or positive section and be provided with square ring and be entangled with line cake.
As the further improvement of technique scheme, between described paper web and stay, be provided with longitudinal oil duct.
As the further improvement of technique scheme, on described cushion block, be provided with horizontal oil duct.
As the further improvement of technique scheme, described end winding is provided with insulating end ring, guarantees coil and external insulation.
The invention has the beneficial effects as follows:
Continuous winding of the present invention is mainly applicable to the high-tension coil of 110kV above transformer, adopt to stand and be directly wound on stereo-triangular wound core post around mode, the horizontal coiling of coil routine is changed into longitudinally, make coil have more excellent operative weldability and coiling consolidation more, structure is compacter; Owing to adopting in coil, be entangled with the structure that line cake combines with square ring again, guaranteed the electrical strength of coil, to have improved coil filling rate and strengthened the overall mechanical strength of coil.
In addition, in coil, be provided with longitudinal oil duct and horizontal oil duct, effectively improve the radiating effect of coil, reduce the working temperature of coil, extend its useful life.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of the coil of stereo-triangular wound core post and coiling;
Fig. 2 is continuous winding coiling expanded view of the present invention.
Embodiment
With reference to Fig. 1, the above three dimensional wound core power transformer of 110kV provided by the invention continuous winding, comprise stereo-triangular wound core post 1 and coil 2, coil 2 adopts to stand and is wound on stereo-triangular wound core post 1 around mode, and coil 2 forms to being only a kind of wire continuous coiling topmost from bottom.
With reference to Fig. 2, coil 2 comprises the paper web 3 that is arranged on innermost layer, is provided with stay 4 on paper web 3, between paper web 3 and stay 4, forms longitudinal oil duct.On stay 4, be wound with a plurality of line cakes 5, anti-section of comprising that wire outside in moves into of line cake 5 and wire are from inner positive section of outwards laying out, and anti-section and positive section are arranged alternately, and separate with the cushion block 10 of insulation, are provided with horizontal oil duct in cushion block 10.As shown in Figure 2, the positive section 7 of the first anti-section 6 and first interlinks, the anti-section 8 of the first positive section 7 and second interlinks, the positive section 9 of the second anti-section 8 and second interlinks, so repeat, adjacent anti-section and positive section are interlinked, wherein, the positive section 7 of the first anti-section 6 and first forms a two segment unit, and the positive section 9 of the second anti-section 8 and second forms a two segment unit.Between the positive section 9 of the described first anti-section 6 to second, at least one section is provided with square ring 11 and is provided with and be entangled with line cake 12.On online cake 5, square ring 11 is set, creepage between not only can effectively anti-principal vertical line cake 5, can improve its Electric Field Distribution simultaneously; And be entangled with arranging of line segment 12, can increase turn-to-turn capacitance, improve superpotential distribution, improve the anti-short circuit capability of coil 2.
Further, in order to guarantee the insulating capacity of coil 2, in coil 2 ends, be also equipped with insulating end ring 13.
Continuous winding of the present invention is mainly applicable to the high-tension coil of 110kV above transformer, adopt to stand and be directly wound on stereo-triangular wound core post 1 around mode, the horizontal coiling of coil 2 routines is changed into longitudinally, make coil 2 have more excellent operative weldability and coiling consolidation more, structure is compacter; Because line cake 12 and the structure that square ring 11 combines are entangled with in the interior employing of coil 2, guaranteed the electrical strength of coil 2 again, improved coil 2 filling rates and strengthened the overall mechanical strength of coil 2.In addition, in coil 2, be provided with longitudinal oil duct and horizontal oil duct, effectively improve the radiating effect of coil, reduce the working temperature of coil, extend its useful life.
The foregoing is only preferential execution mode of the present invention, as long as within the technical scheme that realizes the object of the invention with basic identical means all belongs to protection scope of the present invention.
Claims (4)
- The above three dimensional wound core power transformer of 1.110kV continuous winding, described transformer comprises stereo-triangular wound core post (1), it is characterized in that,Described stereo-triangular wound core post (1) is upper is wound with coil (2) by vertical around mode,Described coil (2) comprises the paper web (3) being socketed in outside stereo-triangular wound core post (1), is provided with stay (4) on paper web (3), is wound with a plurality of line cakes (5) on stay (4),Anti-section of comprising that wire outside in moves into of described line cake (5) and wire are from inner positive section of outwards laying out, described anti-section and positive section is arranged alternately, and separate with the cushion block (10) of insulation, adjacent anti-section interlinks and forms two segment units with positive section, in every two groups pairs of segment units, have at least in an anti-section or positive section and be provided with square ring (11) and be entangled with line cake (12).
- 2. the above three dimensional wound core power transformer of 110kV according to claim 1 continuous winding, is characterized in that: between described paper web (3) and stay (4), be provided with longitudinal oil duct.
- 3. the above three dimensional wound core power transformer of 110kV according to claim 2 continuous winding, is characterized in that: described cushion block is provided with horizontal oil duct on (10).
- 4. according to the arbitrary described above three dimensional wound core power transformer of the 110kV continuous winding of claims 1 to 3, it is characterized in that: described coil (2) end is provided with insulating end ring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410375417.6A CN104091684A (en) | 2014-07-31 | 2014-07-31 | Continuous coil for above-110kV three-dimensional wound core power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410375417.6A CN104091684A (en) | 2014-07-31 | 2014-07-31 | Continuous coil for above-110kV three-dimensional wound core power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104091684A true CN104091684A (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410375417.6A Pending CN104091684A (en) | 2014-07-31 | 2014-07-31 | Continuous coil for above-110kV three-dimensional wound core power transformer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106548865A (en) * | 2017-01-19 | 2017-03-29 | 宋当建 | A kind of automatic making apparatus of the special pie winding of power distribution network transformator |
| CN107680780A (en) * | 2017-10-24 | 2018-02-09 | 山东达驰电气有限公司 | A kind of loop construction of transformer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60210818A (en) * | 1984-04-04 | 1985-10-23 | Toshiba Corp | Winding of induction electric apparatus |
| CN2888615Y (en) * | 2006-03-31 | 2007-04-11 | 江苏华鹏变压器有限公司 | Fully continuous transformer coil |
| CN201741535U (en) * | 2010-05-28 | 2011-02-09 | 广东海鸿变压器有限公司 | Stereo-triangular wound core power transformer with voltage class more than or equal to 110KV |
| CN201838441U (en) * | 2010-09-14 | 2011-05-18 | 保定天威集团(江苏)五洲变压器有限公司 | High-voltage coil type transformer |
| CN102226965A (en) * | 2011-03-15 | 2011-10-26 | 江苏华鹏变压器有限公司 | Novel fully-continuous type transformer coil |
| CN202871492U (en) * | 2012-10-19 | 2013-04-10 | 中国西电电气股份有限公司 | 110KV transformer high voltage coil structure |
-
2014
- 2014-07-31 CN CN201410375417.6A patent/CN104091684A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60210818A (en) * | 1984-04-04 | 1985-10-23 | Toshiba Corp | Winding of induction electric apparatus |
| CN2888615Y (en) * | 2006-03-31 | 2007-04-11 | 江苏华鹏变压器有限公司 | Fully continuous transformer coil |
| CN201741535U (en) * | 2010-05-28 | 2011-02-09 | 广东海鸿变压器有限公司 | Stereo-triangular wound core power transformer with voltage class more than or equal to 110KV |
| CN201838441U (en) * | 2010-09-14 | 2011-05-18 | 保定天威集团(江苏)五洲变压器有限公司 | High-voltage coil type transformer |
| CN102226965A (en) * | 2011-03-15 | 2011-10-26 | 江苏华鹏变压器有限公司 | Novel fully-continuous type transformer coil |
| CN202871492U (en) * | 2012-10-19 | 2013-04-10 | 中国西电电气股份有限公司 | 110KV transformer high voltage coil structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106548865A (en) * | 2017-01-19 | 2017-03-29 | 宋当建 | A kind of automatic making apparatus of the special pie winding of power distribution network transformator |
| CN107680780A (en) * | 2017-10-24 | 2018-02-09 | 山东达驰电气有限公司 | A kind of loop construction of transformer |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 529300 Guangdong city of Jiangmen province Kaiping Tsui Lake District No. 3 Huancui West Road Applicant after: HAIHONG ELECTRIC CO., LTD. Address before: 529300 Guangdong city of Jiangmen province Kaiping Tsui Lake District No. 3 Huancui West Road Applicant before: Guangdong Haihong Transformer Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: GUANGDONG HAIHONG TRANSFORMER CO., LTD. TO: HAIHONG ELECTRIC CO., LTD. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141008 |