CN102360802A - High voltage coil of dual voltage dry type power transformer - Google Patents
High voltage coil of dual voltage dry type power transformer Download PDFInfo
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- CN102360802A CN102360802A CN2011102372306A CN201110237230A CN102360802A CN 102360802 A CN102360802 A CN 102360802A CN 2011102372306 A CN2011102372306 A CN 2011102372306A CN 201110237230 A CN201110237230 A CN 201110237230A CN 102360802 A CN102360802 A CN 102360802A
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- connecting hole
- coil winding
- tension coil
- high voltage
- end joint
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Abstract
The invention relates to a high voltage coil of a dual voltage dry type power transformer. The high voltage coil comprises a first high voltage coil winding and a second high voltage coil winding which are sheathed on the same iron core as well as a connecting piece and a connecting rod, wherein the first high voltage coil winding is provided with a first initial end joint and a first tail end joint, the second high voltage coil winding is provided with a second initial end joint and a second tail end joint; the end part of the connecting piece is provided with a first connecting hole and a second connecting hole; and the end part of the connecting rod is provided with a third connecting hole and a fourth connecting hole. In the invention, 10kV and 20kV voltage class input are respectively realized by adopting different high voltage connection modes, a user can take the product as a 10kV product or a 20kV product, investment cost of the user is greatly reduced, resource is saved, and requirement for transition transformation of a power grid is met.
Description
Technical field
The present invention relates to a kind of dry-type power transformer coil, especially a kind of high-tension coil of double-voltage dry type power transformer belongs to the transformer technology field.
Background technology
In prior art, the every phase winding of 20kV dry-type power transformer high-tension coil is divided into eight segment structure coileds, and section separates with the section cross-over block, and the high pressure winding is the copper conductor coiling, uses the glass fiber vacuum casting technique.Primary side voltage can only be 20kV, in electrical network transition transformation process, can't reach 10kV and freely switch.
Summary of the invention
The objective of the invention is to overcome the deficiency that exists in the prior art, the high-tension coil of the double-voltage dry type power transformer that the input of a kind of 10kV of realization or 20kV electric pressure is provided, satisfy needs that the electrical network transition transforms, reduce cost of investment, economizes on resources.
According to technical scheme provided by the invention; The high-tension coil of said double-voltage dry type power transformer; Comprise the first high-tension coil winding and the second high-tension coil winding that are sleeved on the same iron core; Separate with cross-over block between the first high-tension coil winding and the second high-tension coil winding; The first high-tension coil winding and the second high-tension coil winding are symmetric arrangement up and down, and the first high-tension coil winding has the first head end joint and first end connector, and the second high-tension coil winding has the second head end joint and second end connector; Brace and connecting rod also be equipped with; One end of said brace has first connecting hole; The other end of brace has second connecting hole, and the distance between first connecting hole, second connecting hole cooperates with distance between first end connector, the second head end joint; One end of said connecting rod has the 3rd connecting hole; The other end of connecting rod has the 4th connecting hole; Distance between distance between the 3rd connecting hole, the 4th connecting hole and the first head end joint, the second head end joint cooperates, and between the distance between the 3rd connecting hole, the 4th connecting hole and first end connector, second end connector apart from cooperating.
Said second connecting hole is a mounting hole.
The present invention realizes 10kV and the input of 20kV electric pressure respectively through different high pressure connected modes; The user both can use this product as the 10kV product, also can use as the 20kV product, greatly reduced user's cost of investment; Also practice thrift resource, satisfied the needs that the electrical network transition is transformed.
Description of drawings
Fig. 1 is the overall structure sketch map of coil among the present invention.
Fig. 2 is the structural representation of brace among the present invention.
Fig. 3 is the structural representation of connecting rod among the present invention.
Embodiment
Below in conjunction with concrete accompanying drawing and embodiment the present invention is described further.
As shown in the figure, the present invention mainly is made up of parts such as the first high-tension coil winding 1, the first head end joint 1.1, first end connector 1.2, the second high-tension coil winding 2, the second head end joint 2.1, second end connector 2.2, brace 3, first connecting hole 3.1, second connecting hole 3.2, connecting rod 4, the 3rd connecting hole 4.1 and the 4th connecting holes 4.2.
The high-tension coil of this double-voltage dry type power transformer; Comprise the first high-tension coil winding 1 and the second high-tension coil winding 2 on the same iron core of suit; Separate with cross-over block between the first high-tension coil winding 1 and the second high-tension coil winding 2; The first high-tension coil winding 1 and the second high-tension coil winding 2 are symmetric arrangement up and down; The first high-tension coil winding 1 has the first head end joint 1.1 and first end connector, 1.2, the second high-tension coil windings 2 have the second head end joint 2.1 and second end connector 2.2; Brace 3 and connecting rod 4 also be equipped with; One end of said brace 3 has first connecting hole 3.1; The other end of brace 3 has second connecting hole 3.2, and the distance between first connecting hole 3.1, second connecting hole 3.2 cooperates with distance between first end connector 1.2, the second head end joint 2.1; One end of said connecting rod 4 has the 3rd connecting hole 4.1; The other end of connecting rod 4 has the 4th connecting hole 4.2; Distance between the 3rd connecting hole 4.1, the 4th connecting hole 4.2 cooperates with distance between the first head end joint 1.1, the second head end joint 2.1, and between the distance between the 3rd connecting hole 4.1, the 4th connecting hole 4.2 and first end connector 1.2, second end connector 2.2 apart from cooperating.
Said second connecting hole 3.2 is a mounting hole.
The high-tension coil structure of the two voltages of dry-type power transformer of the present invention (20kV or 10kV); By up and down two independently the first high-tension coil winding 1 and 2 of the second high-tension coil windings are formed; Separate with cross-over block between the first high-tension coil winding 1 and the second high-tension coil winding 2; Be divided into up and down two independently 10kV windings, the first high-tension coil winding 1 and the second high-tension coil winding 2 are the copper conductor coiling, use glass fiber vacuum casting technique.Be convenient coiling and assembling, be designed to two coils symmetry up and down on the structure, and on a mould, accomplish coiling and casting.Rationally adjust the distribution of coil segment and layer in the high-tension coil design process, thereby improve the distribution of electric field, avoided local field strength too high, in theory partial discharge is reduced to minimum value.
When first connecting hole 3.1 of brace 3 is connected with first end connector 1.2 of the first high-tension coil winding 1; Second connecting hole 3.2 of brace 3 is connected with the second head end joint 2.1 that has of the second high-tension coil winding 2; Realized being connected in series of the first high-tension coil winding 1 and the second high-tension coil winding 2, made that the present invention can the input of 20kV electric pressure.
When the 3rd connecting hole 4.1 that uses a connecting rod 4 is connected with the first head end joint 1.1 of the first high-tension coil winding 1, the 4th connecting hole 4.2 of same connecting rod 4 is connected with the second head end joint 2.1 of the second high-tension coil winding 2; Simultaneously, use the 3rd connecting hole 4.1 of another root connecting rod 4 to be connected with first end connector 1.2 of the first high-tension coil winding 1, the 4th connecting hole 4.2 of same connecting rod 4 is connected with second end connector 2.2 of the second high-tension coil winding 2; Like this, realized being connected in parallel of the first high-tension coil winding 1 and the second high-tension coil winding 2, made that the present invention can the input of 10kV electric pressure.The two voltage high-tension coils of 20kV can note that still link piece 3 and connecting rod 4 can not use simultaneously according to the needed voltage-regulation of client.
Claims (2)
1. the high-tension coil of a double-voltage dry type power transformer; Comprise the first high-tension coil winding (1) and the second high-tension coil winding (2) that are sleeved on the same iron core; Separate with cross-over block between the first high-tension coil winding (1) and the second high-tension coil winding (2); The first high-tension coil winding (1) is symmetric arrangement up and down with the second high-tension coil winding (2); The first high-tension coil winding (1) has the first head end joint (1.1) and first end connector (1.2), and the second high-tension coil winding (2) has the second head end joint (2.1) and second end connector (2.2); It is characterized in that: also be equipped with brace (3) and connecting rod (4); One end of said brace (3) has first connecting hole (3.1); The other end of brace (3) has second connecting hole (3.2), and the distance between first connecting hole (3.1), second connecting hole (3.2) cooperates with distance between first end connector (1.2), the second head end joint (2.1); One end of said connecting rod (4) has the 3rd connecting hole (4.1); The other end of connecting rod (4) has the 4th connecting hole (4.2); Distance between distance between the 3rd connecting hole (4.1), the 4th connecting hole (4.2) and the first head end joint (1.1), the second head end joint (2.1) cooperates, and between the distance between the 3rd connecting hole (4.1), the 4th connecting hole (4.2) and first end connector (1.2), second end connector (2.2) apart from cooperating.
2. the high-tension coil of double-voltage dry type power transformer as claimed in claim 1 is characterized in that: said second connecting hole (3.2) is a mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102372306A CN102360802A (en) | 2011-08-18 | 2011-08-18 | High voltage coil of dual voltage dry type power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102372306A CN102360802A (en) | 2011-08-18 | 2011-08-18 | High voltage coil of dual voltage dry type power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102360802A true CN102360802A (en) | 2012-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102372306A Pending CN102360802A (en) | 2011-08-18 | 2011-08-18 | High voltage coil of dual voltage dry type power transformer |
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| Country | Link |
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| CN (1) | CN102360802A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078207A (en) * | 2014-07-15 | 2014-10-01 | 无锡亿能电力设备有限公司 | High-voltage coil of dual-voltage dry-type power transformer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01316910A (en) * | 1988-06-17 | 1989-12-21 | Hitachi Ltd | Shell-type transformer coil |
| CN101425366A (en) * | 2008-08-08 | 2009-05-06 | 扬州华鼎电器有限公司 | Dry power transformer |
| CN202205558U (en) * | 2011-08-18 | 2012-04-25 | 无锡亿能电力设备有限公司 | High-voltage coil for dual-voltage dry type power transformer |
-
2011
- 2011-08-18 CN CN2011102372306A patent/CN102360802A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01316910A (en) * | 1988-06-17 | 1989-12-21 | Hitachi Ltd | Shell-type transformer coil |
| CN101425366A (en) * | 2008-08-08 | 2009-05-06 | 扬州华鼎电器有限公司 | Dry power transformer |
| CN202205558U (en) * | 2011-08-18 | 2012-04-25 | 无锡亿能电力设备有限公司 | High-voltage coil for dual-voltage dry type power transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078207A (en) * | 2014-07-15 | 2014-10-01 | 无锡亿能电力设备有限公司 | High-voltage coil of dual-voltage dry-type power transformer |
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Application publication date: 20120222 |