CN103325546B - The neutral point pressure regulation section disk-type winding at middle part - Google Patents
The neutral point pressure regulation section disk-type winding at middle part Download PDFInfo
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- CN103325546B CN103325546B CN201310299790.3A CN201310299790A CN103325546B CN 103325546 B CN103325546 B CN 103325546B CN 201310299790 A CN201310299790 A CN 201310299790A CN 103325546 B CN103325546 B CN 103325546B
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Abstract
The present invention relates to a kind of neutral point pressure regulation section disk-type winding at middle part, including basic segment and pressure regulation section, described basic segment is to be formed in parallel by the upper basic segment and lower basic segment being symmetrically distributed in coil two ends；Described pressure regulation section is arranged in the middle part of coil, and described pressure regulation section is connected on the afterbody of basic segment, and described pressure regulation section partly or entirely participates in transformator and runs.The present invention reduces a main empty path between high-tension coil and voltage regulation coil, improve the filling rate in core window；When transformator working voltage is less than rated voltage, participates in number of wire turns and the working voltage minimizing in direct ratio run, decrease the loss of transformator.The wire turn of pressure regulation section and basic segment linearly increases and decreases according to geometric position, there is no lofty electric potential difference, thus simplify loop construction, avoid the intersegmental danger electrically punctured, reduce intersegmental oil duct, reduce the horizontal leakage field of transformator, load loss and axial electric power, improve the filling rate in core window.
Description
Technical field
The present invention relates to a kind of neutral point pressure regulation section disk-type winding at middle part.
Background technology
Using Yd11 connection according to GB 35kV level and following power transformer thereof, when transformer capacity is more than 1000kVA, high-low pressure winding all uses disk-type winding.When the M type switch of employing carries out pressure regulation, due to the restriction of construction of switch, using basic segment winding to add structure or the structure of the reverse pressure regulation of neutral point of independent tap-changing windings in the past, both structures have its inevitable defect, add cost.
Summary of the invention
The problem that the present invention is directed to the existence of above-mentioned prior art makes improvement, i.e. the technical problem to be solved is to provide a kind of lower-cost neutral point pressure regulation section disk-type winding at middle part.
In order to solve above-mentioned technical problem, the technical scheme is that a kind of neutral point pressure regulation section disk-type winding at middle part, including basic segment and pressure regulation section, described basic segment is to be formed in parallel by the upper basic segment and lower basic segment being symmetrically distributed in coil two ends；Described pressure regulation section is arranged in the middle part of coil, and described pressure regulation section is connected on the afterbody of basic segment, and described pressure regulation section partly or entirely participates in transformator and runs.
Further, described pressure regulation section is to be formed in parallel by upper pressure regulation section and lower pressure regulation section.
Further, described coil uses strip conductor to be wrapped on the framework being made up of stay and cushion block.
Further, the radical of described stay is according to size between the iron core of coil from circumferencial direction uniform 8 ~ 24.
The method have the advantages that (1) pressure regulation section wire turn and basic segment wire turn share a coil, compared with the transformator of tune structure positive and negative with existing employing, decrease a main empty path between high-tension coil and voltage regulation coil, improve the filling rate in core window；When transformator working voltage is less than rated voltage, participates in number of wire turns and the working voltage minimizing in direct ratio run, decrease the loss of transformator.(2), when existing transformator uses the structure of neutral point reverse pressure regulation, there is the biggest electric potential difference between pressure regulation section and upper basic segment, need the oil duct amplifying between them, increase square ring etc. and ensure electric insulation；And the wire turn of pressure regulation section of the present invention and basic segment linearly increases and decreases according to geometric position, there is no lofty electric potential difference, thus simplify loop construction, avoid the intersegmental danger electrically punctured, reduce intersegmental oil duct, reduce the horizontal leakage field of transformator, load loss and axial electric power, improve the filling rate in core window.(3) by this structure of the present invention so that the transformator of Y connection no matter use M type switch or V-type switch can general same high-tension coil, and do not increase transformator cost.
The present invention will be further described in detail with detailed description of the invention below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the whole winding wiring schematic diagram of pressure regulation section one line structure.
Fig. 2 is the A phase coil expanded view of pressure regulation section one line structure.
Fig. 3 is the A phase coil wire turn arrangement figure of pressure regulation section one line structure.
Fig. 4 is the whole winding wiring schematic diagram of pressure regulation section two-way parallel-connection structure.
Fig. 5 is the A phase coil expanded view of pressure regulation section two-way parallel-connection structure.
Fig. 6 is the A phase coil wire turn arrangement figure of pressure regulation section two-way parallel-connection structure.
In figure: 1,2,3,4,5,6,7, K-shunting tap, the tap of A-end, the upper basic segment of AK1-, basic segment under AK2-, AV-pressure regulation section, AV1-upper pressure regulation section, pressure regulation section under AV2-, CT-stay, DX-strip conductor, JD-insulating end ring.
Detailed description of the invention
Embodiment one: as shown in Fig. 1 ~ 3, a kind of neutral point pressure regulation section disk-type winding at middle part, including basic segment and pressure regulation section AV, described basic segment is to be formed in parallel by upper basic segment AK1 and lower basic segment AK2 being symmetrically distributed in coil two ends；Described pressure regulation section AV is arranged in the middle part of coil, and described pressure regulation section AV is connected on the afterbody of basic segment, and described pressure regulation section AV partly or entirely participates in transformator and runs.
In embodiment one, described coil uses strip conductor DX to be wrapped on the framework being made up of stay CT and cushion block, and the radical of described stay CT is according to size between the iron core of coil from circumferencial direction uniform 8 ~ 24；The two ends of described coil are respectively arranged with insulating end ring JD, and described overhang is provided with end tap, and the middle part of described coil is provided with shunting tap (1,2,3,4,5,6,7).
Embodiment two: as shown in Fig. 4 ~ 6, a kind of neutral point pressure regulation section disk-type winding at middle part, including basic segment and pressure regulation section AV, described basic segment is to be formed in parallel by upper basic segment AK1 and lower basic segment AK2 being symmetrically distributed in coil two ends；Described pressure regulation section AV needs to use upper pressure regulation section AV1 and lower pressure regulation section AV2 parallel-connection structure according to big electric current, and described pressure regulation section AV is arranged in the middle part of coil, and described pressure regulation section AV is connected on the afterbody of basic segment, and described pressure regulation section AV partly or entirely participates in transformator and runs.
In embodiment two, described coil uses strip conductor DX to be wrapped on the framework being made up of stay CT and cushion block, and the radical of described stay CT is according to size between the iron core of coil from circumferencial direction uniform 8 ~ 24；The two ends of described coil are respectively arranged with insulating end ring JD, and described overhang is provided with end tap A, and the middle part of described coil is provided with shunting tap (1,2,3,4,5,6,7).
Owing to the three-phase structure of coil is identical, therefore the wire turn arrangement figure in the expanded view of Fig. 2 and Fig. 5 and Fig. 3 and Fig. 6 has the most only drawn a phase (A phase), and A, K, 1,2,3,4,5,6,7 represent the label of winding protruding head.The pressure regulation section AV wire turn of the present invention and basic segment wire turn share a coil, decrease a main empty path between high-tension coil and voltage regulation coil, improve the filling rate in core window；When transformator working voltage is less than rated voltage, participates in number of wire turns and the working voltage minimizing in direct ratio run, decrease the loss of transformator.Pressure regulation section AV of the present invention and the wire turn of basic segment linearly increase and decrease according to geometric position, there is no lofty electric potential difference, thus simplify loop construction, avoid the intersegmental danger electrically punctured, reduce intersegmental oil duct, reduce the horizontal leakage field of transformator, load loss and axial electric power, improve the filling rate in core window.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent and modification, all should belong to the covering scope of the present invention.
Claims (2)
1. the neutral point pressure regulation section disk-type winding at middle part, including basic segment and pressure regulation section, it is characterized in that: described pressure regulation section wire turn and basic segment wire turn share a coil, described coil uses strip conductor to be wrapped on the framework being made up of stay and cushion block, the radical of described stay is according to size between the iron core of coil from circumferencial direction uniform 8 ~ 24, and described basic segment is to be formed in parallel by the upper basic segment and lower basic segment being symmetrically distributed in coil two ends；Described pressure regulation section is arranged in the middle part of coil, and described pressure regulation section is connected on the afterbody of basic segment, and described pressure regulation section partly or entirely participates in transformator and runs.
The neutral point pressure regulation section the most according to claim 1 disk-type winding at middle part, it is characterised in that: described pressure regulation section is to be formed in parallel by upper pressure regulation section and lower pressure regulation section.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310299790.3A CN103325546B (en) | 2013-07-17 | 2013-07-17 | The neutral point pressure regulation section disk-type winding at middle part |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310299790.3A CN103325546B (en) | 2013-07-17 | 2013-07-17 | The neutral point pressure regulation section disk-type winding at middle part |
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| CN103325546A CN103325546A (en) | 2013-09-25 |
| CN103325546B true CN103325546B (en) | 2016-08-10 |
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| CN201310299790.3A Active CN103325546B (en) | 2013-07-17 | 2013-07-17 | The neutral point pressure regulation section disk-type winding at middle part |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201465772U (en) * | 2009-04-13 | 2010-05-12 | 中国西电电气股份有限公司 | Structure of T-shaped wiring traction transformer |
| CN202230847U (en) * | 2011-09-21 | 2012-05-23 | 三变科技股份有限公司 | Resin casting continuous coil of dry-type transformer |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2284939A (en) * | 1993-08-15 | 1995-06-21 | Aziz Fawzy Mekaiel Fanouse | Voltage regulating transformer |
| CN201508760U (en) * | 2009-09-11 | 2010-06-16 | 中电电气集团有限公司 | On-load tap changer of high voltage D connection |
| CN201804688U (en) * | 2010-06-04 | 2011-04-20 | 陕西汉中变压器有限责任公司 | Three-phase oil-immersed 110kV high-capacity straight step-down silicon carbide transformer coil |
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2013
- 2013-07-17 CN CN201310299790.3A patent/CN103325546B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201465772U (en) * | 2009-04-13 | 2010-05-12 | 中国西电电气股份有限公司 | Structure of T-shaped wiring traction transformer |
| CN202230847U (en) * | 2011-09-21 | 2012-05-23 | 三变科技股份有限公司 | Resin casting continuous coil of dry-type transformer |
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| CN103325546A (en) | 2013-09-25 |
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Address after: 100030 Beijing Xicheng District West Chang'an Avenue 86 Co-patentee after: FUZHOU TIANYU ELECTRIC Co.,Ltd. Patentee after: STATE GRID CORPORATION OF CHINA Address before: 100761 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Co-patentee before: FUZHOU TIANYU ELECTRIC Co.,Ltd. Patentee before: State Grid Corporation of China |
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Effective date of registration: 20181219 Address after: 350108 304-A115, 3rd floor, Pioneer Building, 8th East Science and Technology Road, Shangjie Town, Minhou County, Fuzhou City, Fujian Province Patentee after: Fuzhou Xuji Electric Co.,Ltd. Address before: 100030 Beijing Xicheng District West Chang'an Avenue 86 Co-patentee before: FUZHOU TIANYU ELECTRIC Co.,Ltd. Patentee before: State Grid Corporation of China |