CN102360811A - High tension lead structure for double split dry distribution transformer - Google Patents
High tension lead structure for double split dry distribution transformer Download PDFInfo
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- CN102360811A CN102360811A CN2011102119083A CN201110211908A CN102360811A CN 102360811 A CN102360811 A CN 102360811A CN 2011102119083 A CN2011102119083 A CN 2011102119083A CN 201110211908 A CN201110211908 A CN 201110211908A CN 102360811 A CN102360811 A CN 102360811A
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- connecting rod
- phase terminal
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Abstract
The invention provides a high tension lead structure for a double split dry distribution transformer. The high tension lead structure is characterized in that: a first phase A lead and a second phase B lead are connected with each other to form a ninth connection rod; a second phase A lead and a first phase C lead are connected with each other to form a tenth connection rod, and the second phase A lead and a third phase C lead are connected with each other to form an eleventh connection rod; a third phase A lead and the second phase B lead are connected with each other to form a twelfth connection rod; a first phase B lead and a second phase C lead are connected with each other to form a thirteenth connection rod; and a third phase B lead and the second phase C lead are connected with each other to form a fourteenth connection rod. The high tension lead structure has the advantages that: in the transformer in the technical scheme, only one cross point exists between the connection rods in the horizontal direction, and the high tension structure has one cross point fewer than the prior art, an air insulation distance can be reduced, the contour dimension L of the transformer is reduced, the reduction of the contour dimension L is smaller while voltage is high, the size of a shell is correspondingly reduced when the high tension lead structure is provided with the shell, occupied areas are reduced, and cost is reduced.
Description
Technical field
The present invention relates to a kind of high-voltage connection structure of transformer.
Background technology
The preceding two division dry-type distribution transformer critical pieces that use are made up of iron core assembling, coil, lead-in wire, connecting rod etc., and lead-in wire comprises high-voltage connection and low-voltage lead, is generally the Dyn11 connection.
As shown in Figure 1; Be the present high-voltage connection structure that adopts; Comprise an A phase terminal, the 2nd A phase terminal, the 3rd A phase terminal, a B phase terminal, the 2nd B phase terminal, the 3rd B phase terminal, a C phase terminal, the 2nd C phase terminal, the 3rd C phase terminal, head rod 1, second connecting rod 2, the 3rd connecting rod 3, the 4th connecting rod 6, the 5th connecting rod 7, the 6th connecting rod 8, high-tension coil 4 and iron core assembling 5 etc., its pin configuration is: an A phase terminal and the 2nd C phase terminal are connected to form the 3rd connecting rod 3, a B phase terminal and the 2nd B phase terminal and are connected to form the 5th connecting rod 7, the 2nd A phase terminal and a B phase terminal and are connected to form the 6th connecting rod 8.Lead-in wire adopts such connected mode; The 3rd connecting rod 3 and the 6th connecting rod 8 must keep certain air insulation distance; The 6th connecting rod 8 and the 5th connecting rod 7 must keep certain air insulation distance, so must keep two air insulation distances between the connecting rod.In like manner also must keep two air insulation distances between head rod 1, second connecting rod 2, the 3rd connecting rod 3.Simultaneously voltage is high more, requires between the connecting rod air insulation distance big more, could satisfy the requirement of electric property, therefore adopts this technical scheme dry-type distribution transformer body overall dimension bigger.
As shown in Figure 2, under the condition that guarantees transformer air insulation distance, the size L between the connecting rod is bigger, the corresponding increase of transformer case size, and floor space is big, and cost also correspondingly increases.
Summary of the invention
The purpose of this invention is to provide a kind of high-voltage connection structure that can save two division dry-type distribution transformers in transformer case space, thereby reduce the transformer manufacturing cost.
In order to achieve the above object; Technical scheme of the present invention has provided a kind of two division dry-type distribution transformer high-voltage connection structure; Comprise an A phase terminal, the 2nd A phase terminal, the 3rd A phase terminal, a B phase terminal, the 2nd B phase terminal, the 3rd B phase terminal, a C phase terminal, the 2nd C phase terminal and the 3rd C phase terminal; It is characterized in that: an A phase terminal and the 2nd B phase terminal are connected to form the 9th connecting rod; The 2nd A phase terminal is connected with a C phase terminal and the 3rd C phase terminal and forms the tenth connecting rod and the 11 connecting rod respectively; The 3rd A phase terminal and the 2nd B phase terminal are connected to form the 12 connecting rod, and a B phase terminal and the 2nd C phase terminal are connected to form the 13 connecting rod, and the 3rd B phase terminal and the 2nd C phase terminal are connected to form the 14 connecting rod.
Further, said the 9th connecting rod, the tenth connecting rod, the 11 connecting rod, the 12 connecting rod, the 13 connecting rod and the 14 connecting rod are that copper pipe processes, and the cross section is an annular.
The invention has the beneficial effects as follows: adopt this technical scheme transformer in the horizontal direction connecting rod have only a crosspoint between mutually; Lack a crosspoint than the prior art scheme, can reduce by an air insulation distance, transformer overall dimension L reduces; High more reduce big more of voltage; Shell sizes is corresponding during the band shell reduces, and floor space reduces, and cost reduces.
Description of drawings
Fig. 1 is existing division dry-type distribution transformer high-voltage connection structural representation;
Fig. 2 is the left diagrammatic sketch of Fig. 1;
Fig. 3 is a kind of division dry-type distribution transformer high-voltage connection structural representation provided by the invention;
Fig. 4 is the left diagrammatic sketch of Fig. 3.
Embodiment
For making the present invention more obviously understandable, now with a preferred embodiment, and conjunction with figs. elaborates as follows.
In conjunction with Fig. 1 and Fig. 2; A kind of two division dry-type distribution transformer high-voltage connection structures provided by the invention; Comprise lead-in wire, connecting rod, high-tension coil 14 and iron core assembling 11, wherein, an A phase terminal and the 2nd B phase terminal are connected to form the 9th connecting rod 16; The 2nd A phase terminal is connected with a C phase terminal and the 3rd C phase terminal and forms the tenth connecting rod 9 and the 11 connecting rod 13 respectively; The 3rd A phase terminal and the 2nd B phase terminal are connected to form the 12 connecting rod 15, the one B phase terminals and the 2nd C phase terminal is connected to form the 13 connecting rod 10, the three B phase terminals and the 2nd C phase terminal is connected to form the 14 connecting rod 12.
Said the 9th connecting rod 16, the tenth connecting rod the 9, the 11 connecting rod the 13, the 12 connecting rod the 15, the 13 connecting rod 10 and the 14 connecting rod 12 process for copper pipe; According to the different voltages with different grade; The isolating shrinkable tube that overcoat is different; The cross section is an annular, conducts electricity very well, and can not be out of shape in the running.
Described high-tension coil 14 is made up of two coils, around to instead, and middle two inlet wire, two outlet up and down, single-phase two high-voltage line circles are parallel running.
Adopt such lead-in wire connected mode, all only need to keep an air insulation distance between the tenth connecting rod 9 and the 13 connecting rod 10, the 9th connecting rod 16.Equally, also only need between the 11 connecting rod 13 and the 12 connecting rod the 15, the 14 connecting rod 12 to keep a space insulation distance to get final product.
As shown in Figure 3; Division dry-type distribution transformer high pressure connected mode of the present invention is delta connection; Couple together with the 13 connecting rod 10 and the 11 connecting rod 13 binding post symmetry, satisfy the distribution system service requirement, improve every phase two winding resistance degrees of balance the high pressure winding.
As shown in Figure 3, this division dry-type distribution transformer high-voltage connection connecting rod in the horizontal direction has only a crosspoint between mutually, lacks a crosspoint than shown in Figure 1, has reduced by an air insulation distance.
As shown in Figure 4, transformer connecting rod overall dimension L of the present invention is owing to only need to keep an air insulation distance between the connecting rod; Therefore compare with the overall dimension L of prior art scheme, transformer connecting rod overall dimension reduces, and electric pressure is high more; Connecting rod overall dimension L reduces; The transformer size is corresponding to be reduced, and floor space reduces, and cost reduces.
Claims (2)
1. one kind pair is divided dry-type distribution transformer high-voltage connection structure; Comprise an A phase terminal, the 2nd A phase terminal, the 3rd A phase terminal, a B phase terminal, the 2nd B phase terminal, the 3rd B phase terminal, a C phase terminal, the 2nd C phase terminal and the 3rd C phase terminal; It is characterized in that: an A phase terminal and the 2nd B phase terminal are connected to form the 9th connecting rod (16); The 2nd A phase terminal is connected with a C phase terminal and the 3rd C phase terminal and forms the tenth connecting rod (9) and the 11 connecting rod (13) respectively; The 3rd A phase terminal and the 2nd B phase terminal are connected to form the 12 connecting rod (15); The one B phase terminal and the 2nd C phase terminal are connected to form the 13 connecting rod (10), and the 3rd B phase terminal and the 2nd C phase terminal are connected to form the 14 connecting rod (12).
2. a kind of two division dry-type distribution transformer high-voltage connection structures as claimed in claim 1; It is characterized in that: said the 9th connecting rod (16), the tenth connecting rod (9), the 11 connecting rod (13), the 12 connecting rod (15), the 13 connecting rod (10) and the 14 connecting rod (12) process for copper pipe, and the cross section is an annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102119083A CN102360811A (en) | 2011-07-27 | 2011-07-27 | High tension lead structure for double split dry distribution transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102119083A CN102360811A (en) | 2011-07-27 | 2011-07-27 | High tension lead structure for double split dry distribution transformer |
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| Publication Number | Publication Date |
|---|---|
| CN102360811A true CN102360811A (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102119083A Pending CN102360811A (en) | 2011-07-27 | 2011-07-27 | High tension lead structure for double split dry distribution transformer |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201122499Y (en) * | 2007-11-23 | 2008-09-24 | 上海市电力公司 | Capacity-adjustable dry-type transformer |
| CN101615493A (en) * | 2009-05-22 | 2009-12-30 | 山东达驰电气有限公司 | A kind of arrangement of transformer high-voltage tap lead |
| CN201438405U (en) * | 2009-05-12 | 2010-04-14 | 广州市番禺明珠电器有限责任公司 | Dual-voltage dry-type transformer |
| CN201576536U (en) * | 2009-11-05 | 2010-09-08 | 中电电气集团有限公司 | High-voltage lead structure of small capacity dry non-encapsulated rectifier transformer |
| CN202172003U (en) * | 2011-07-27 | 2012-03-21 | 正泰电气股份有限公司 | High pressure lead wire structure of double-split dry type distribution transformer |
-
2011
- 2011-07-27 CN CN2011102119083A patent/CN102360811A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201122499Y (en) * | 2007-11-23 | 2008-09-24 | 上海市电力公司 | Capacity-adjustable dry-type transformer |
| CN201438405U (en) * | 2009-05-12 | 2010-04-14 | 广州市番禺明珠电器有限责任公司 | Dual-voltage dry-type transformer |
| CN101615493A (en) * | 2009-05-22 | 2009-12-30 | 山东达驰电气有限公司 | A kind of arrangement of transformer high-voltage tap lead |
| CN201576536U (en) * | 2009-11-05 | 2010-09-08 | 中电电气集团有限公司 | High-voltage lead structure of small capacity dry non-encapsulated rectifier transformer |
| CN202172003U (en) * | 2011-07-27 | 2012-03-21 | 正泰电气股份有限公司 | High pressure lead wire structure of double-split dry type distribution transformer |
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Application publication date: 20120222 |