CN201134337Y - Electrostatic ring of transformer with inter-winding column linking function - Google Patents
Electrostatic ring of transformer with inter-winding column linking function Download PDFInfo
- Publication number
- CN201134337Y CN201134337Y CNU2007201384273U CN200720138427U CN201134337Y CN 201134337 Y CN201134337 Y CN 201134337Y CN U2007201384273 U CNU2007201384273 U CN U2007201384273U CN 200720138427 U CN200720138427 U CN 200720138427U CN 201134337 Y CN201134337 Y CN 201134337Y
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- CN
- China
- Prior art keywords
- electrostatic ring
- lead
- ring
- transformer
- winding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004804 winding Methods 0.000 title claims abstract description 40
- 238000009413 insulation Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 238000007142 ring opening reaction Methods 0.000 claims description 2
- 230000005684 electric field Effects 0.000 abstract description 9
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 4
- 239000002828 fuel tank Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Images
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- Coils Of Transformers For General Uses (AREA)
Abstract
Disclosed is a transformer electrostatic ring with inter-columnar winding connecting function, which belongs to the technical field of transformers and is used to solve the problem of connecting wires of inter-columnar winding of an ultra high voltage high capacity transformer. The technical scheme comprises that the transformer electrostatic ring comprises an inner electrostatic ring and an outer electrostatic ring which are concentric, the inner electrostatic ring and the outer electrostatic ring fixed at the ends of the winding are coaxial with the winding, oil gaps and insulated crossover blocks which are distributed among the oil gaps are arranged between the inner electrostatic ring and the outer electrostatic ring, after being improved, an arcuate guide wire is added, the arcuate guide wire is an separate winding connecting wire, the middle portion of the arcuate guide wire are located in one section of the oil gap between the inner electrostatic ring and the outer electrostatic ring, two ends of the arcuate guide wire extend from the inside of the outer electrostatic ring along the radial direction of the electrostatic ring, oil gaps are disposed between the middle portion of the arcuate guide wire and the inner and outer electrostatic rings, and insulated crossover blocks are separately arranged among the oil gaps, and the leading-out end of a lead wire of the electrostatic ring is electrically connected with the leading-out end of the arcuate guide wire at the ends of the lead wire of the electrostatic ring and the arcuate guide wire. The transformer electrostatic ring not only improves electric field distribution around the connecting wires of inter-columnar winding, but also enables the lead wire to be fixed and in fine heat dissipation, thereby skillfully solving the problem of connecting the connecting wires of inter-columnar winding inside the body of the ultra high voltage and high capacity transformer.
Description
Technical field
The utility model relates to a kind of improved transformer electrostatic ring, belongs to the transformer technology field.
Background technology
In power transformer, because near the Electric Field Distribution winding overhang or the inlet line segment is extremely inhomogeneous, cause the dielectric strength of winding overhang to reduce, electric discharge phenomena easily take place, damage transformer.The end is in the transformer of 220kV and above voltage, in order to improve winding overhang or near the Electric Field Distribution of the inlet line segment, all be provided with electrostatic ring in transformer input, output lead and winding junction, its effect is that the winding overhang non-uniform electric field is become evenly, to improve the dielectric strength of end.This electrostatic ring is made skeleton by the laminated paper circle, outsourcing equipotential line (copper litz wire), conductive metal band and insulating barrier, equipotential line is drawn to lift one's head as electrostatic ring and is connected with the winding overhang first circle line cake, and is identical with this line cake to guarantee the electrostatic ring current potential, plays and improves the end effect of electric field.And the line between the different post winding overhangs of transformer, owing to be difficult to solve in the heat radiation of small space lead, insulation, lead-in wire electromagnetic force and Electric Field Distribution problem, thereby traditional structure all is that lead-in wire is fixed on one's body the device by insulated support at the outside cabling of device body.But, for extra-high-voltage large-capacity transf, because device body and winding volume increase, the whole Transporting condition has limited the increase of fuel tank size again, the device body is relative with the space between the fuel tank less, line electric pressure height between transformer pillar, thereby traditional connecting line construction in addition can't satisfy the line insulation distance required to fuel tank at all.Therefore, how connecting between the extra-high-voltage large-capacity transf intercolumniation winding is present engineers and technicians' problem demanding prompt solution.
Summary of the invention
The utility model is used to overcome the deficiencies in the prior art, provide a kind of can improve Electric Field Distribution, can solve the transformer electrostatic ring with pillar space windings connecting function of the fixing and heat dissipation problem of line again.
Problem described in the utility model realizes with following technical proposals:
A kind of transformer electrostatic ring with pillar space windings connecting function, it comprise be fixed on winding overhang and with coaxial interior electrostatic ring of winding 1 and outer electrostatic ring 2, the two is concentric, and oil clearance and the cross-over block 3 in oil clearance spaced apart are arranged between them, after the improvement, set up an arciform lead, described arciform lead is alternate winding connecting line, wherein portion is arranged in one section oil clearance between electrostatic ring and the outer electrostatic ring, radially stretch out in outer electrostatic ring 2 along electrostatic ring at two ends, the middle part of arciform lead with in, be provided with oil clearance between the outer electrostatic ring, cross-over block 4 at interval distributes in oil clearance; The exit of described electrostatic ring lead-in wire and arciform lead is electrically connected in both ends.
Above-mentioned transformer electrostatic ring with pillar space windings connecting function, described arciform lead cross section be rectangle, quantity is two, is stacked.
Above-mentioned transformer electrostatic ring with pillar space windings connecting function, in described electrostatic ring 1 and outer electrostatic ring 2 by circular layer platen ring framework 10, with parallel equipotential line 9 of laminated paper ring framework 10 and conductive metal band 11 and electrostatic ring insulating barrier 12 compositions that are paperwrapped in their outsides successively, described conductive metal band 11 one side conductions, the another side insulation; Described equipotential line 9 is electrically connected with conductive metal band 11, and is connected with the winding overhang first circle line cake by lead-in wire.
Above-mentioned transformer electrostatic ring with pillar space windings connecting function, an exit of described arciform lead and the lead-in wire of inside and outside electrostatic ring walk abreast and draw from outer electrostatic ring opening part, and the other end is reversed into level and draws from the groove of outer electrostatic ring 2 one sides the back side by side.
The utility model with arciform lead as intercolumniation winding line, arciform lead middle part is fixed between interior electrostatic ring and the outer electrostatic ring, inside and outside electrostatic ring has not only improved the Electric Field Distribution around the lead-in wire, improved lead wire insulation intensity, and can make arciform lead fixed, overcome its suffered powerful electromagnetic force; Oil clearance between arciform lead and interior electrostatic ring, the outer electrostatic ring has solved the heat dissipation problem of lead for arciform lead provides the cooling oil circuit.The utility model can not only improve the Electric Field Distribution around the intercolumniation winding line, and makes lead-in wire obtain firm fixing and good heat radiating, an ingenious difficult problem that solves extra-high-voltage large-capacity transf winding line between the inner joint pin of device body.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is a structural representation of the present utility model;
Fig. 2,3 is respectively that M, K are to revolved view;
Fig. 4 is the A-A cutaway view;
Fig. 5 is an assembling schematic diagram of the present utility model.
Each label is among the figure: 1, interior electrostatic ring, 2, outer electrostatic ring, 3, the cross-over block between the inside and outside electrostatic ring, 4, the cross-over block between arciform lead and the inside and outside electrostatic ring, 5, arciform lead a, 6, arciform lead b, 7, interior electrostatic ring lead-in wire, 8, outer electrostatic ring lead-in wire, 9, equipotential line, 10, the paper ring framework, 11, conductive metal band, 12, electrostatic ring insulating barrier, 13, arciform wire insulation (crimped paper), 14, insulation pressing, 15, Transformer Winding, 16, cross-over block under the winding, 17, iron core.
Embodiment
Referring to Fig. 1, the utility model calculates by temperature rise and considers that arciform lead cooperates with inside and outside electrostatic ring thickness and radial width dimensions, choose two suitable strip conductors in parallel (arciform lead a and arciform lead b, choosing two leads is technological requirements) be assembled into arciform lead as the intercolumniation line, the carrying operating current.Determine the radial width dimensions of inside and outside electrostatic ring according to the line force analysis, the lead moulding is placed between the inside and outside electrostatic ring, inside and outside electrostatic ring is by the cross-over block clamping wire, between lead and the electrostatic ring, place cross-over block between the inside and outside electrostatic ring, cross-over block is coated with PVA and adjacent elements cements and stretching electrostatic ring and lead, is having the cross-over block place firm inside and outside electrostatic ring colligation with crimped paper at last.
Referring to Fig. 5, above-below direction compresses electrostatic ring and lead by device body insulation pressing, guarantees that the stressed back of lead is indeformable.Oil clearance between lead and the electrostatic ring, between the inside and outside electrostatic ring is as the lead heat dissipation channel.The utility model suits to use on extra-high-voltage large-capacity transf.
Claims (4)
1, a kind of transformer electrostatic ring with pillar space windings connecting function, it comprises and is fixed on winding overhang and interior electrostatic ring (1) and the outer electrostatic ring (2) coaxial with winding, both are concentric, and oil clearance and the cross-over block (3) in oil clearance spaced apart are arranged between them, it is characterized in that, set up an arciform lead, described arciform lead is alternate winding connecting line, wherein portion is arranged in one section oil clearance between electrostatic ring and the outer electrostatic ring, radially stretch out in outer electrostatic ring (2) along electrostatic ring at two ends, the middle part of arciform lead with in, be provided with oil clearance between the outer electrostatic ring, cross-over block (4) at interval distributes in oil clearance; The exit of described electrostatic ring lead-in wire and arciform lead is electrically connected in both ends.
2, according to the described transformer electrostatic ring of claim 1, it is characterized in that with pillar space windings connecting function, described arciform lead cross section be rectangle, quantity is two, is stacked.
3, according to claim 1 or 2 described transformer electrostatic rings with pillar space windings connecting function, it is characterized in that, electrostatic ring (1) and outer electrostatic ring (2) walk abreast by circular layer platen ring framework (10), with laminated paper ring framework (10) in described equipotential line (9) and conductive metal band (11) that is paperwrapped in their outsides successively and electrostatic ring insulating barrier (12) composition, described conductive metal band (11) one side conduction, the another side insulation; Described equipotential line (9) is electrically connected with conductive metal band (11), and is connected with the winding overhang first circle line cake by lead-out wire.
4, according to the described transformer electrostatic ring of claim 3 with pillar space windings connecting function, it is characterized in that, an exit of described arciform lead and the lead-in wire of inside and outside electrostatic ring walk abreast and draw from outer electrostatic ring opening part, and the other end is reversed into level and draws from the groove of outer electrostatic ring (2) one sides the back side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201384273U CN201134337Y (en) | 2007-12-28 | 2007-12-28 | Electrostatic ring of transformer with inter-winding column linking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201384273U CN201134337Y (en) | 2007-12-28 | 2007-12-28 | Electrostatic ring of transformer with inter-winding column linking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201134337Y true CN201134337Y (en) | 2008-10-15 |
Family
ID=40062605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201384273U Expired - Lifetime CN201134337Y (en) | 2007-12-28 | 2007-12-28 | Electrostatic ring of transformer with inter-winding column linking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201134337Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101256890B (en) * | 2008-01-09 | 2010-06-02 | 保定天威集团有限公司 | Transformer electrostatic ring with pillar space windings connecting function |
-
2007
- 2007-12-28 CN CNU2007201384273U patent/CN201134337Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101256890B (en) * | 2008-01-09 | 2010-06-02 | 保定天威集团有限公司 | Transformer electrostatic ring with pillar space windings connecting function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BAODING TIANWEI BAOBIAN ELECTRICAL CO.LTD. Free format text: FORMER OWNER: TIANWEI GROUP CO., LTD., BAODING Effective date: 20081114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081114 Address after: No 2399, West Print-Rite Road, Baoding, Hebei: 071056 Patentee after: Baoding Tianwei Baobian Electric Co., Ltd. Address before: Baoding, Hebei Province, high street, chemical fiber North Road, 128 Jin Di garden complex building, zip code: 071051 Patentee before: Baoding Tianwei Group Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhao Feng Inventor after: Wang Xiaoning Inventor after: Wang Kai Inventor after: Liu Dongsheng Inventor after: Wang Ninghua Inventor after: Zhang Huidi Inventor after: Ran Qingkai Inventor before: Zhao Feng Inventor before: Wang Kai Inventor before: Liu Dongsheng Inventor before: Zhang Huidi Inventor before: Ran Qingkai |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHAO FENG; WANG KAI; LIU DONGSHENG; ZHANG HUIDI; RAN QINGKAI TO: ZHAO FENG; WANG XIAONING; WANG KAI; LIU DONGSHENG; WANG NINGHUA; ZHANG HUIDI; RAN QINGKAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100129 Address after: No 2399, West Print-Rite Road, Baoding, Hebei: 071056 Co-patentee after: State Grid Corporation of China Patentee after: Baoding Tianwei Baobian Electric Co., Ltd. Address before: No 2399, West Print-Rite Road, Baoding, Hebei: 071056 Patentee before: Baoding Tianwei Baobian Electric Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20081015 Effective date of abandoning: 20071228 |