CN102709032A - Power transformer - Google Patents
Power transformer Download PDFInfo
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- CN102709032A CN102709032A CN2012102311735A CN201210231173A CN102709032A CN 102709032 A CN102709032 A CN 102709032A CN 2012102311735 A CN2012102311735 A CN 2012102311735A CN 201210231173 A CN201210231173 A CN 201210231173A CN 102709032 A CN102709032 A CN 102709032A
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Abstract
The invention discloses a power transformer which comprises an iron core, a hard paper tube, a low-voltage winding and a high-voltage winding which are sequentially arranged from the inside to the outside, wherein the low-voltage winding adopts a middle wire feed structure, and is divided into an upper low-voltage winding which is positioned at the upper part and a lower low-voltage winding which is positioned at the lower part, the upper low-voltage winding is winded rightwards, the lower low-voltage winding is winded leftwards, and the upper low-voltage winding and the lower low-voltage winding are connected in parallel. The power transformer prevents the transposition trouble which is caused by too many parallel winding turns of a continuous coil which allows the wire to be led from an end part, the wire filing rate is improved, and the cost is saved.
Description
Technical field
The present invention relates to transformer, be specifically related to a kind of electric pressure 6～10kV, winding and arrange near unshakable in one's determination, capacity in the loop construction of 12500～40000kVA, have and carry or the power transformer of non-excitation pressure adjustment.
Background technology
When the three-phase transformer capacity at 12500～40000kVA, the low-voltage coil electric pressure is 6 or during 10kV, the coil pattern selects to be in continous way and spiral interval.As adopting spirally, filling rate is low, owing to receive restrictions such as impedance, wire gauge, often improper or uneconomical, thus the structure of continous way adopted mostly, but, make coil transposition difficulty because coil and more around radical tends to surpass the half the of stay number.
Summary of the invention
The purpose of this invention is to provide a kind of power transformer, in the coil winding process, be convenient to the transposition of lead, and improve the filling rate of winding wire.
Power transformer of the present invention; It comprises iron core, cardboard cylinder, low pressure winding and the high pressure winding that sets gradually from the inside to surface; Said low pressure winding adopts middle part inlet wire structure, is divided into superposed low pressure top winding and the low pressure bottom winding that is positioned at the bottom, said low pressure top winding be the right side around to; Low pressure bottom winding be a left side around to, and low pressure top winding and low pressure bottom winding are in parallel.
The first line of said low pressure top winding and low pressure bottom winding is all drawn from the stay neutral gear of the final stage of iron core, and said first line is through wrapping, and logical respectively paper-passing trough is drawn.
The position that the first line of corresponding low pressure top winding and low pressure bottom winding is drawn on the said cardboard cylinder is the plane.
Power transformer of the present invention owing to adopted middle part inlet wire, the continuous winding structure of parallel connection up and down, has been avoided the continuous winding lead of end inlet wire and around the transposition difficulty that radical too much causes, has been improved the filling rate of lead, has practiced thrift cost.
Description of drawings
Fig. 1 is that the position of iron core, low pressure winding and high pressure winding in the power transformer according to the invention concerns sketch map;
Fig. 2 is the sketch map of the first line inlet wire structure of power transformer according to the invention;
Fig. 3 is the sketch map of the outside lead syndeton of power transformer according to the invention;
Fig. 4 is the schematic diagram of Fig. 3.
Embodiment
Below in conjunction with accompanying drawing the present invention is described further:
Like Fig. 1 to power transformer shown in Figure 4; Its main body comprises iron core 1, cardboard cylinder 4, low pressure winding 2 and the high pressure winding 3 that sets gradually from the inside to surface; Low pressure winding 2 adopts middle part inlet wire structures, is divided into superposed low pressure top winding and the low pressure bottom winding that is positioned at the bottom, said low pressure top winding be the right side around to; Low pressure bottom winding be a left side around to, and low pressure top winding and low pressure bottom winding are in parallel.
As shown in Figure 2, the first line 2-1 of low pressure top winding and low pressure bottom winding all draws from stay 6 neutral gears of the final stage 1-1 of iron core, and first line 2-1 is all through wrapping 3mm, and is that the paper groove 5 of 2mm is drawn through thickness respectively.The position that the first line 2-1 of corresponding low pressure top winding and low pressure bottom winding draws on the cardboard cylinder 4 is plane 4-1.
Like Fig. 3 and shown in Figure 4; The iron core of power transformer adopts three-phase core formula structure; Each phase low pressure winding is divided into upper and lower two parts, that is: first, second, third low pressure top winding 2-2,2-3,2-4 and first, second, third low pressure bottom winding 2-5,2-6,2-7.Wherein, First, second, third low pressure top winding 2-2,2-3,2-4 adopt YNd11 (also can adopt YNyn0d11) to connect into △ shape, and first, second, third low pressure bottom winding 2-5,2-6,2-7 adopt YNd11 (also can adopt YNyn0d11) to connect into △ shape; With lead-in wire L the top a of the first low pressure top winding 2-2 is connected with the top a ' of the first low pressure bottom winding 2-5 then; With lead-in wire L the top b of the second low pressure top winding 2-3 is connected with the top b ' of the second low pressure bottom winding 2-6; With lead-in wire L the top c of the 3rd low pressure top winding 2-4 is connected with the top c ' of the 3rd low pressure bottom winding 2-7; Thereby realize that the first low pressure top winding 2-2 is parallelly connected with the first low pressure bottom winding 2-5, the second low pressure top winding 2-3 is parallelly connected with the second low pressure bottom winding 2-6 and the 3rd low pressure top winding 2-4 is parallelly connected with the 3rd low pressure bottom winding 2-7, make the outside lead of low pressure winding 2 connect into double triangle.
Claims (3)
1. power transformer; Comprise the iron core (1), cardboard cylinder (4), low pressure winding (2) and the high pressure winding (3) that set gradually from the inside to surface; It is characterized in that: said low pressure winding adopts middle part inlet wire structure, is divided into superposed low pressure top winding and the low pressure bottom winding that is positioned at the bottom, said low pressure top winding be the right side around to; Low pressure bottom winding be a left side around to, and low pressure top winding and low pressure bottom winding are in parallel.
2. power transformer according to claim 1; It is characterized in that: the first line (2-1) of said low pressure top winding and low pressure bottom winding is all drawn from stay (6) neutral gear of the final stage (1-1) of iron core; And said first line is all through wrapping, and logical respectively paper-passing trough (5) is drawn.
3. power transformer according to claim 1 and 2 is characterized in that: the position that the first line (2-1) of last corresponding low pressure top winding of said cardboard cylinder (4) and low pressure bottom winding is drawn is plane (4-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102311735A CN102709032A (en) | 2012-07-05 | 2012-07-05 | Power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102311735A CN102709032A (en) | 2012-07-05 | 2012-07-05 | Power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102709032A true CN102709032A (en) | 2012-10-03 |
Family
ID=46901717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102311735A Pending CN102709032A (en) | 2012-07-05 | 2012-07-05 | Power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102709032A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108335870A (en) * | 2017-12-25 | 2018-07-27 | 中铁第勘察设计院集团有限公司 | The volume iron core tractive transformer coil and winding method of coiling of high-voltage coil and low-voltage coil |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19809572A1 (en) * | 1998-03-05 | 1999-10-14 | Siemens Ag | Resin=cast transformer |
| CN201004368Y (en) * | 2007-01-29 | 2008-01-09 | 济南志友集团股份有限公司 | A low voltage coil of split transformer |
| CN201146096Y (en) * | 2007-12-26 | 2008-11-05 | 上海置信电气股份有限公司 | Wind electric transformer with overvoltage protection screen |
| CN201332004Y (en) * | 2008-10-28 | 2009-10-21 | 青州市福利电力变压器厂 | Oil-immersed power transformer |
| CN102044329A (en) * | 2010-07-16 | 2011-05-04 | 江苏上能变压器有限公司 | Coil structure for axial split transformer |
| CN202067649U (en) * | 2011-05-19 | 2011-12-07 | 江苏道盛科技股份有限公司 | On-load capacity-regulating power transformer |
| CN202678058U (en) * | 2012-07-05 | 2013-01-16 | 重庆市亚东亚集团变压器有限公司 | Power transformer |
-
2012
- 2012-07-05 CN CN2012102311735A patent/CN102709032A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19809572A1 (en) * | 1998-03-05 | 1999-10-14 | Siemens Ag | Resin=cast transformer |
| CN201004368Y (en) * | 2007-01-29 | 2008-01-09 | 济南志友集团股份有限公司 | A low voltage coil of split transformer |
| CN201146096Y (en) * | 2007-12-26 | 2008-11-05 | 上海置信电气股份有限公司 | Wind electric transformer with overvoltage protection screen |
| CN201332004Y (en) * | 2008-10-28 | 2009-10-21 | 青州市福利电力变压器厂 | Oil-immersed power transformer |
| CN102044329A (en) * | 2010-07-16 | 2011-05-04 | 江苏上能变压器有限公司 | Coil structure for axial split transformer |
| CN202067649U (en) * | 2011-05-19 | 2011-12-07 | 江苏道盛科技股份有限公司 | On-load capacity-regulating power transformer |
| CN202678058U (en) * | 2012-07-05 | 2013-01-16 | 重庆市亚东亚集团变压器有限公司 | Power transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108335870A (en) * | 2017-12-25 | 2018-07-27 | 中铁第勘察设计院集团有限公司 | The volume iron core tractive transformer coil and winding method of coiling of high-voltage coil and low-voltage coil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING BORUI TRANSFORMER CO., LTD. Free format text: FORMER OWNER: CHONGQING AEA GROUP TRANSFORMER CO., LTD. Effective date: 20130508 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 408100 FULING, CHONGQING TO: 408102 FULING, CHONGQING |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20130508 Address after: 408102, Chongqing Fuling District Li Cross Street office, Saddle Road, 190 dragon road, small and medium-sized transformer factory building Applicant after: Chongqing Asian East Asia Group Transformer Co.,Ltd. Address before: 408100 Chongqing city Fuling District liduzhen Dragon Road No. 190 Applicant before: Chongqing Asian East Asia Group Transformer Co.,Ltd. |
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| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 408102, Chongqing Fuling District Li Cross Street office, Saddle Road, 190 dragon road, small and medium-sized transformer factory building Applicant after: CHONGQING NARI BORUI TRANSFORMER CO., LTD. Address before: 408102, Chongqing Fuling District Li Cross Street office, Saddle Road, 190 dragon road, small and medium-sized transformer factory building Applicant before: Chongqing Asian East Asia Group Transformer Co.,Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: CHONGQING BORUI TRANSFORMER CO., LTD. TO: CHONGQING NANRI BORUI TRANSFOMER CO., LTD. |
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| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121003 |