CN103258629B - With the Large Copacity oil-filled transformer of six column iron cores - Google Patents
With the Large Copacity oil-filled transformer of six column iron cores Download PDFInfo
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- CN103258629B CN103258629B CN201310207096.4A CN201310207096A CN103258629B CN 103258629 B CN103258629 B CN 103258629B CN 201310207096 A CN201310207096 A CN 201310207096A CN 103258629 B CN103258629 B CN 103258629B
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Abstract
With the Large Copacity oil-filled transformer of six column iron cores, relate to a kind of transformer.At present, in the transformer of some high-capacities, transformer adopts three principal posts still can not meet the demands, the mode that multiple stage transformer combines by normal employing, and its cost is high, and area occupied is large.The present invention includes fuel tank, iron core, it is characterized in that: described iron core is six column iron cores, it comprises four principal posts and both sides post, and four described principal posts are respectively equipped with winding, be respectively the first winding, the second winding, the tertiary winding, the 4th winding, two other posts only form magnetic circuit; Four winding switching three are located at the connection in series-parallel conversion off circuit tap changer in fuel tank, connected, form plurality of voltages and export by the conversion of three connection in series-parallel conversion off circuit tap changers.The technical program volume is little, lightweight, convenient transportation.
Description
Technical field
The present invention relates to a kind of transformer.
Background technology
In some large capacity single phase transformer, owing to holding quantitative limitation by every rod structure, iron core need be made several principal posts suit winding, generally iron core is divided into one to three principal post, the form of two other posts, but in the transformer of some high-capacities, transformer adopts three principal posts still can not meet the demands, the mode that multiple stage transformer combines by existing normal employing, its cost is high, and area occupied is large, dismounting is inconvenient, is unfavorable for transport, safeguards.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition carries out improving to prior art and improves, and provides the Large Copacity oil-filled transformer of band six column iron core, with the object reduced costs.For this reason, the present invention takes following technical scheme.
With the Large Copacity oil-filled transformer of six column iron cores, comprise fuel tank, iron core, it is characterized in that described iron core is six column iron cores, it comprises four principal posts and both sides post, four described principal posts are respectively equipped with winding, be respectively the first winding, the second winding, the tertiary winding, the 4th winding, two other posts only form magnetic circuit; Four winding switching three are located at the connection in series-parallel conversion off circuit tap changer in fuel tank, connected, form plurality of voltages and export by the conversion of three connection in series-parallel conversion off circuit tap changers.Compare two four-column type single-phase transformers, six pole structure iron core weight and size significantly reduce, and can cannot transport because size transfinites by the transformer of two four-column type core structure designs, adopt six pillar core structures that this problem just can be made to obtain good solution.
As improving further and supplementing technique scheme, the present invention also comprises following additional technical feature.
Three connection in series-parallel conversion off circuit tap changers are provided with in oil tank of transformer, each connection in series-parallel conversion off circuit tap changer is equipped with the first moving contact, the second moving contact, the first fixed contact, the second fixed contact, the 3rd fixed contact, the 4th fixed contact, the 5th fixed contact, the 6th fixed contact, and the first moving contact and the second moving contact link; Rotating string parallel connection conversion off circuit tap changer drives the first moving contact and the second moving contact to rotate, two kinds of connection status can be formed, first connection status is the first fixed contact, the second fixed contact is connected by the first moving contact, simultaneously, 5th fixed contact, the 6th fixed contact are connected by the second moving contact, are formed and tie; Second connection status is the second fixed contact, the 3rd fixed contact is connected by the first moving contact, and meanwhile, the 4th fixed contact, the 5th fixed contact are connected by the second moving contact, form series wiring; Connected by connection in series-parallel conversion off circuit tap changer between first winding, the second winding, the tertiary winding, the 4th winding, rotating string parallel connection conversion off circuit tap changer realizes the connection in series-parallel conversion between winding, reaches the output of multilevel voltage.
Three described connection in series-parallel conversion off circuit tap changers are respectively the first shunting switch, the second shunting switch, the 3rd shunting switch; First fixed contact of the first shunting switch is connected with the input of the first winding, second fixed contact of the first shunting switch is connected with the input of the second winding, 3rd fixed contact of the first shunting switch is connected with the output of the first winding, 4th fixed contact of the first shunting switch is vacant, 5th fixed contact of the first shunting switch is connected with the output of the first winding, and the 6th fixed contact of the first shunting switch is connected with the output of the second winding; First fixed contact of the 3rd shunting switch is connected with the input of the tertiary winding, second fixed contact of the 3rd shunting switch is connected with the input of the 4th winding, 3rd fixed contact of the 3rd shunting switch is connected with the output of the tertiary winding, 4th fixed contact of the 3rd shunting switch is vacant, 5th fixed contact of the 3rd shunting switch is connected with the output of the tertiary winding, and the 6th fixed contact of the 3rd shunting switch is connected with the output of the 4th winding; First fixed contact of the second shunting switch is connected with the input of the first winding, second fixed contact of the second shunting switch is connected with the input of the tertiary winding, 3rd fixed contact of the second shunting switch is connected with the output of the second winding, 4th fixed contact of the second shunting switch is vacant, 5th fixed contact of the second shunting switch is connected with the output of the second winding, and the 6th fixed contact of the second shunting switch is connected with the output of the 4th winding.
Described fuel tank is provided with the drive unit that each self-driven connection in series-parallel conversion off circuit tap changer rotates.
Described fuel tank offers axis hole, and the rotating shaft that off circuit tap changer is connected is changed in Kong Zhongshe and connection in series-parallel, establishes seal between axis hole and rotating shaft.
The first described winding, the second winding, the tertiary winding, the 4th winding all can be formed by one or more winding connection in series-parallel equivalence.
Beneficial effect: 1, compare two four-column type single-phase transformers, six pole structure iron core weight and size significantly reduce, convenient transportation, and cost is low, assembling, easy to maintenance.
2, three connection in series-parallel conversion off circuit tap changers are adopted, series-parallel conversion of four groups of windings can be realized, thus the voltage realizing more multistage number exports, the transformer of this mode of connection is adopted all to carry out at fuel tank internal due to its voltage transitions, the outlet casing tube quantity of transformer is greatly reduced, transformer outside also without the need to artificial wiring or arrange connection in series-parallel conversion disconnecting link, decrease investment and the floor space of experiment station.
Accompanying drawing explanation
Fig. 1 is core structure of the present invention and magnetic flux path figure.
Fig. 2 is elementary diagram of the present invention.
In figure: 1-first moving contact, 2-second moving contact, 3-first fixed contact, 4-second fixed contact, 5-the 3rd fixed contact, 6-the 4th fixed contact, 7-the 5th fixed contact, 8-the 6th fixed contact, 9-first winding, 10-second winding, the 11-tertiary winding, 12-the 4th winding, N1-first shunting switch, N2-second shunting switch, N3-the 3rd shunting switch; 13-iron core.
Embodiment
Below in conjunction with Figure of description, technical scheme of the present invention is described in further detail.
The present invention includes fuel tank, iron core 13, as shown in Figure 1, iron core 3 is six column iron cores, and four described principal posts are respectively equipped with winding to it both sides post comprising four principal posts and be positioned at four principal post both sides, and two other posts only form magnetic circuit.One phase winding comprises the first winding 9, second winding 10, the tertiary winding 11, 4th winding 12, three connection in series-parallel conversion off circuit tap changers are provided with in fuel tank, as shown in Figure 2, connection in series-parallel conversion off circuit tap changer is provided with the first moving contact 1, second moving contact 2, first fixed contact 3, second fixed contact 4, 3rd fixed contact 5, 4th fixed contact 6, 5th fixed contact 7, 6th fixed contact 8, wherein the first moving contact 1, first fixed contact 3, second fixed contact 4, 3rd fixed contact 5 is the first switch cooperation group, second moving contact 2, 4th fixed contact 6, 5th fixed contact 7, 6th fixed contact 8 is second switch cooperation group, first moving contact 1 and the second moving contact 2 link, rotating string parallel connection conversion off circuit tap changer drives the first moving contact 1 and the second moving contact 2 to rotate, two kinds of connection status can be formed, first connection status is that the first fixed contact 3, second fixed contact 4 is connected by the first moving contact 1, meanwhile, the 5th fixed contact 7, the 6th fixed contact 8 are connected by the second moving contact 2, second connection status is the second fixed contact 4, the 3rd fixed contact 5 is connected by the first moving contact 1, and meanwhile, the 4th fixed contact 6, the 5th fixed contact 7 are connected by the second moving contact 2, three described connection in series-parallel conversion off circuit tap changers are respectively the first shunting switch N1, the second shunting switch N2, the 3rd shunting switch N3, first fixed contact 3 of the first shunting switch N1 is connected with the input of the first winding 9, second fixed contact 4 of the first shunting switch N1 is connected with the input of the second winding 10,3rd fixed contact 5 of the first shunting switch N1 is connected with the output of the first winding 9,4th fixed contact 6 of the first shunting switch N1 is vacant, 5th fixed contact 7 of the first shunting switch N1 is connected with the output of the first winding 9, and the 6th fixed contact 8 of the first shunting switch N1 is connected with the output of the second winding 10, first fixed contact 3 of the 3rd shunting switch N3 is connected with the input of the tertiary winding 11, second fixed contact 4 of the 3rd shunting switch N3 is connected with the input of the 4th winding 12,3rd fixed contact 5 of the 3rd shunting switch N3 is connected with the output of the tertiary winding 11,4th fixed contact 6 of the 3rd shunting switch N3 is vacant, 5th fixed contact 7 of the 3rd shunting switch N3 is connected with the output of the tertiary winding 11, and the 6th fixed contact 8 of the 3rd shunting switch N3 is connected with the output of the 4th winding 12, first fixed contact 3 of the second shunting switch N2 is connected with the input of the first winding 9, second fixed contact 4 of the second shunting switch N2 is connected with the input of the tertiary winding 11,3rd fixed contact 5 of the second shunting switch N2 is connected with the output of the second winding 10,4th fixed contact 6 of the second shunting switch N2 is vacant, 5th fixed contact 7 of the second shunting switch N2 is connected with the output of the second winding 10, and the 6th fixed contact 8 of the second shunting switch N2 is connected with the output of the 4th winding 12.First winding 9, second winding 10, the tertiary winding 11, the 4th winding 12 all can be formed by one or more winding connection in series-parallel equivalence, are that two winding parallels form in example.
Fuel tank is provided with the drive unit driving connection in series-parallel conversion off circuit tap changer to rotate.Drive unit can be artificial actuating device or Vidacare corp.Described fuel tank offers axis hole, and the rotating shaft that off circuit tap changer is connected is changed in Kong Zhongshe and connection in series-parallel, establishes seal between axis hole and rotating shaft.
Adopt three connection in series-parallel conversion off circuit tap changers, can realize the connection in series-parallel conversion of four groups of windings, the voltage thus realizing more multistage number exports.Its job order is the first shunting switch N1, 3rd shunting switch N3 carries out a connection in series-parallel to two groups of windings respectively separately and connects, by the second shunting switch N2, another connection in series-parallel conversion is carried out to obtain above two voltages more afterwards, the transformer of this mode of connection is adopted all to carry out at fuel tank internal due to its voltage transitions, the outlet casing tube quantity of transformer is greatly reduced, transformer outside also without the need to artificial wiring or arrange connection in series-parallel conversion disconnecting link, decrease investment and the floor space of experiment station, this mode of connection can be successfully applied to the single-phase sudden short circuit testing transformer of 1200MVA/330kV high-capacity.
The Large Copacity oil-filled transformer of band six column iron core shown in above Fig. 1,2 is specific embodiments of the invention; with having embodied substantive distinguishing features that the present invention gives prominence to and aobvious person progressive; can according to the use needs of reality; under enlightenment of the present invention; it is carried out to the equivalent modifications of the aspect such as shape, structure, all at the row of the protection range of this programme.
Claims (6)
1. be with the Large Copacity oil-filled transformer of six column iron cores, comprise fuel tank, iron core (13), it is characterized in that: described iron core (3) is six column iron cores, it comprises four principal posts and both sides post, four described principal posts are respectively equipped with winding, be respectively the first winding (9), the second winding (10), the tertiary winding (11), the 4th winding (12), two other posts only form magnetic circuit; Four winding switching three are located at the connection in series-parallel conversion off circuit tap changer in fuel tank, connected, form plurality of voltages and export by the conversion of three connection in series-parallel conversion off circuit tap changers.
2. the Large Copacity oil-filled transformer of band six column iron core according to claim 1, it is characterized in that: each connection in series-parallel conversion off circuit tap changer is equipped with the first moving contact (1), the second moving contact (2), the first fixed contact (3), the second fixed contact (4), the 3rd fixed contact (5), the 4th fixed contact (6), the 5th fixed contact (7), the 6th fixed contact (8), and the first moving contact (1) and the second moving contact (2) link; Rotating string parallel connection conversion off circuit tap changer drives the first moving contact (1) and the second moving contact (2) to rotate, two kinds of connection status can be formed, first connection status is the first fixed contact (3), the second fixed contact (4) is connected by the first moving contact (1), simultaneously, 5th fixed contact (7), the 6th fixed contact (8) are connected by the second moving contact (2), are formed and tie; Second connection status is the second fixed contact (4), the 3rd fixed contact (5) is connected by the first moving contact (1), simultaneously, 4th fixed contact (6), the 5th fixed contact (7) are connected by the second moving contact (2), form series wiring; Connected by connection in series-parallel conversion off circuit tap changer between first winding (9), the second winding (10), the tertiary winding (11), the 4th winding (12), rotating string parallel connection conversion off circuit tap changer realizes the connection in series-parallel conversion between winding, reaches the output of multilevel voltage.
3. the Large Copacity oil-filled transformer of band six column iron core according to claim 2, is characterized in that: three described connection in series-parallel conversion off circuit tap changers are respectively the first shunting switch (N1), the second shunting switch (N2), the 3rd shunting switch (N3), first fixed contact (3) of the first shunting switch (N1) is connected with the input of the first winding (9), second fixed contact (4) of the first shunting switch (N1) is connected with the input of the second winding (10), 3rd fixed contact (5) of the first shunting switch (N1) is connected with the output of the first winding (9), 4th fixed contact (6) of the first shunting switch (N1) is vacant, 5th fixed contact (7) of the first shunting switch (N1) is connected with the output of the first winding (9), 6th fixed contact (8) of the first shunting switch (N1) is connected with the output of the second winding (10), first fixed contact (3) of the 3rd shunting switch (N3) is connected with the input of the tertiary winding (11), second fixed contact (4) of the 3rd shunting switch (N3) is connected with the input of the 4th winding (12), 3rd fixed contact (5) of the 3rd shunting switch (N3) is connected with the output of the tertiary winding (11), 4th fixed contact (6) of the 3rd shunting switch (N3) is vacant, 5th fixed contact (7) of the 3rd shunting switch (N3) is connected with the output of the tertiary winding (11), 6th fixed contact (8) of the 3rd shunting switch (N3) is connected with the output of the 4th winding (12), first fixed contact (3) of the second shunting switch (N2) is connected with the input of the first winding (9), second fixed contact (4) of the second shunting switch (N2) is connected with the input of the tertiary winding (11), 3rd fixed contact (5) of the second shunting switch (N2) is connected with the output of the second winding (10), 4th fixed contact (6) of the second shunting switch (N2) is vacant, 5th fixed contact (7) of the second shunting switch (N2) is connected with the output of the second winding (10), 6th fixed contact (8) of the second shunting switch (N2) is connected with the output of the 4th winding (12).
4. the Large Copacity oil-filled transformer of band six column iron core according to claim 3, is characterized in that: described fuel tank is provided with the drive unit that each self-driven connection in series-parallel conversion off circuit tap changer rotates.
5. the Large Copacity oil-filled transformer of band six column iron core according to claim 4, is characterized in that: described fuel tank offers axis hole, and the rotating shaft that off circuit tap changer is connected is changed in Kong Zhongshe and connection in series-parallel, establishes seal between axis hole and rotating shaft.
6. the Large Copacity oil-filled transformer of band six column iron core according to the arbitrary claim of claim 1-5, is characterized in that: described the first winding (9), the second winding (10), the tertiary winding (11), the 4th winding (12) all can be formed by one or more winding connection in series-parallel equivalence.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310207096.4A CN103258629B (en) | 2013-05-30 | 2013-05-30 | With the Large Copacity oil-filled transformer of six column iron cores |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310207096.4A CN103258629B (en) | 2013-05-30 | 2013-05-30 | With the Large Copacity oil-filled transformer of six column iron cores |
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| CN103258629A CN103258629A (en) | 2013-08-21 |
| CN103258629B true CN103258629B (en) | 2015-12-30 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56131916A (en) * | 1980-03-19 | 1981-10-15 | Toshiba Corp | Single-phase on-load tap-changing transformer |
| JPS56146209A (en) * | 1980-04-15 | 1981-11-13 | Toshiba Corp | Three-phase transformer |
| CN2888617Y (en) * | 2006-02-14 | 2007-04-11 | 苏州安泰变压器有限公司 | Power distribution transformer which can be connected to two kinds of grids |
| CN201489984U (en) * | 2009-08-17 | 2010-05-26 | 王奉瑾 | Novel transformer |
| CN102136354A (en) * | 2010-12-16 | 2011-07-27 | 保定天威集团有限公司 | Large-range on-load tap changer (OLTC) for testing |
| CN202363217U (en) * | 2011-12-04 | 2012-08-01 | 蒋元华 | Hexastyle bevel angle elliptical iron core magnetic control reactor |
| CN203242479U (en) * | 2013-05-30 | 2013-10-16 | 卧龙电气集团股份有限公司 | Large-capacity oil-immersed transformer with six-post iron core |
-
2013
- 2013-05-30 CN CN201310207096.4A patent/CN103258629B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56131916A (en) * | 1980-03-19 | 1981-10-15 | Toshiba Corp | Single-phase on-load tap-changing transformer |
| JPS56146209A (en) * | 1980-04-15 | 1981-11-13 | Toshiba Corp | Three-phase transformer |
| CN2888617Y (en) * | 2006-02-14 | 2007-04-11 | 苏州安泰变压器有限公司 | Power distribution transformer which can be connected to two kinds of grids |
| CN201489984U (en) * | 2009-08-17 | 2010-05-26 | 王奉瑾 | Novel transformer |
| CN102136354A (en) * | 2010-12-16 | 2011-07-27 | 保定天威集团有限公司 | Large-range on-load tap changer (OLTC) for testing |
| CN202363217U (en) * | 2011-12-04 | 2012-08-01 | 蒋元华 | Hexastyle bevel angle elliptical iron core magnetic control reactor |
| CN203242479U (en) * | 2013-05-30 | 2013-10-16 | 卧龙电气集团股份有限公司 | Large-capacity oil-immersed transformer with six-post iron core |
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| CN103258629A (en) | 2013-08-21 |
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Address after: 312300 No. 1801 Renmin West Road, Shangyu City, Shaoxing City, Zhejiang Province Patentee after: WOLONG ELECTRIC GROUP Co.,Ltd. Patentee after: Zhejiang Baiyun Zhejiang Substation Electrical Equipment Co., Ltd Address before: 312300 No. 1801 Renmin West Road, Shangyu City, Shaoxing City, Zhejiang Province Patentee before: WOLONG ELECTRIC GROUP Co.,Ltd. Patentee before: Wolong Electric Group Zhejiang Transformer Co., Ltd |