CN204155722U - A kind of 110kV and above three dimensional wound core transformer - Google Patents
A kind of 110kV and above three dimensional wound core transformer Download PDFInfo
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- CN204155722U CN204155722U CN201420588683.2U CN201420588683U CN204155722U CN 204155722 U CN204155722 U CN 204155722U CN 201420588683 U CN201420588683 U CN 201420588683U CN 204155722 U CN204155722 U CN 204155722U
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 84
- 238000004804 winding Methods 0.000 claims abstract description 79
- 238000009413 insulation Methods 0.000 claims abstract description 16
- 229910052742 iron Inorganic materials 0.000 claims abstract description 14
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 8
- 239000003921 oil Substances 0.000 claims description 14
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 230000005684 electric field Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005685 electric field effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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- Coils Of Transformers For General Uses (AREA)
Abstract
A kind of 110kV disclosed in the utility model and above three dimensional wound core transformer, comprise iron core and winding, described iron core is made up of three closed iron core frames, described iron core frame by magnetic conducting band from inside to outside continuous reeling form, the plane side assembled formation three dimensional wound core structure bonded to each other on the munnion limit of three iron core frames, stitching portion is provided with insulation pulling plate and is strained and fixed for the munnion limit of fitting two, two munnion limits are joined together to form core limb, winding is set with again without the need to dismantling iron yoke, process costs is saved, its core limb and iron yoke have a style of one's own formation magnetic conductive loop, steel plate is not needed to clamp, iron core do not have wedge angle, the partial discharge quantity of effective reduction transformer, and covering separator can reduce noise, electric fields uniform between iron core and winding is distributed.
Description
Technical field
The utility model relates to three dimensional wound core transformer, especially a kind of 110kV and above oil-immersed transformer.
Background technology
(general high voltage voltage is 110kV to voltage levels in the market, 220kV, 330kV, 500kV and more than) oil-immersed power transformer, core construction is laminated core, namely be formed by stacking by being cut into difform silicon steel sheet, core limb is built up by thick and that level is wide silicon steel sheet not at the same level, every one-level silicon steel sheet is rectangle, for saving silicon steel material, iron yoke builds up D shape, core limb and iron yoke are clamped by steel arm-tie, as illustrated in fig. 1 and 2, Transformer Winding first on winding mould coiling form, then drying is carried out to it, compression process, after dry compression, the upper yoke of iron core is removed, the winding of same phase is sleeved on core limb from inside to outside successively, enough packaging clearances to be left during Winding Design, prevent suit from not going down.By the insulating part of winding and lower yoke while winding suit, the insulating part between winding and winding assembles, finally the insulating part of assembling winding and upper yoke.
Existing shortcoming is that noise is large, and no-load current is large, and periphery unshakable in one's determination has wedge angle, very easily discharges under high voltage electric field effect.Winding coiling needs coiling on special winding mould, needs form removal tool after winding, and there is the defect of process time length and waste of material.And winding suit first will tear upper yoke open, then every phase winding is set with, upper yoke of resetting after packaging winding, and technique repeats, performance impairment unshakable in one's determination, and winding suit will leave enough packaging clearances, and the existence of this gap causes transformer anti-short circuit capability to decline.
Utility model content
In order to solve above-mentioned technical problem, a kind of 110kV that the utility model provides and above three dimensional wound core transformer, simple and practical, carry out winding technique without the need to taking iron core apart, save production time and waste of material, make transformer device structure more firm.
To achieve these goals, the technical scheme that the utility model adopts is:
A kind of 110kV and above three dimensional wound core transformer, comprise iron core and winding, described iron core is made up of three closed iron core frames, described iron core frame by magnetic conducting band from inside to outside continuous reeling form, the plane side assembled formation three dimensional wound core structure bonded to each other on the munnion limit of three iron core frames, stitching portion is provided with insulation pulling plate and is strained and fixed for the munnion limit of fitting two, two munnion limits are joined together to form the core limb that cross section is quasi-circular, and the transverse frame edge of described iron core frame is iron yoke;
Described winding comprises coil, supporting plate, lower yoke insulating part and interior insulating part, described supporting plate is sleeved on core limb, described lower yoke insulating part is assemblied on supporting plate, described interior insulating part is fixed on lower yoke insulating part, described supporting plate and leave between lower yoke insulating part and core limb and rotate space, described coil winding is enclosed within interior insulating part.In utilizing, insulating part and lower yoke insulating part are as winding mould, without the need to dismounting after winding installation, in aggregates with shape unshakable in one's determination, also coiling is carried out without the need to dismantling structure unshakable in one's determination, easy to operate, the winding coil of more than one deck can be provided with, between each coil, place insulating part, gapless, anti-short circuit capability is strong.
Preferably, described iron core frame inside is provided with several the first oil ducts, and described first oil duct arranges at equal intervals and is arranged in wherein one deck magnetic conducting band and reeling in the lump with magnetic conducting band.
Preferably, described iron core frame stitching portion is provided with the second oil duct, and described second oil duct is arranged between the munnion limit that fits vertically at equal intervals.
Preferred, the outer surface of described iron core frame is provided with a separator, the split face between the bonding iron core frame of described separator, the corner location of described iron core frame is provided with the breach for placing insulation pulling plate, during assembled iron core, insulation pulling plate can be placed in breach, avoids insulation pulling plate to stretch out outside iron core.
Preferred, described magnetic conducting band be silicon steel or other there is the band of magnetic conduction ability, its winding bandwidth successively changes makes core limb and iron yoke periphery arc transition.
In order to the structure with winding unshakable in one's determination in firm transformer, the both sides up and down of described iron core are provided with upper clamping piece for being fixed winding and lower clamping piece.
Preferably, the axial height of described insulation pulling plate is greater than the height of core limb and is less than whole height unshakable in one's determination, and its upper and lower both ends are respectively arranged with the position, hole for connecting upper clamping piece and lower clamping piece.
Preferably, described winding is also provided with the upper end that upper yoke insulating part is assemblied in interior insulating part, clamps coil by upper yoke insulating part and lower yoke insulating part, make the structure of winding more firm.
The beneficial effects of the utility model: by core limb and the iron yoke of magnetic conducting band continuous reeling, have a style of one's own formation magnetic conductive loop, steel plate is not needed to clamp, iron core do not have wedge angle, the partial discharge quantity of effective reduction transformer, and covering separator can reduce noise, makes the electric fields uniform between iron core and winding distribute; Winding technique is without the need to special winding mould, the insulating part of himself and lower yoke insulating part are as winding mould, winding winding shaping, winding is directly wound on core limb, is set with winding again without the need to dismantling iron yoke, process costs is saved, winding and distance unshakable in one's determination can be reduced simultaneously, cost-saving, multi-layer winding coil can be set, very close to each other between each layer line circle, anti-short circuit capability strengthens.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
Fig. 1 is the structural representation of existing voltage levels core limb;
Fig. 2 is the structural representation of existing voltage levels iron yoke;
Fig. 3 is the schematic cross-section of iron core frame in the utility model;
Fig. 4 is the schematic cross-section of core limb in the utility model;
Fig. 5 is the overall structure schematic cross-section of transformer in the utility model;
Fig. 6 is the sectional structure schematic diagram at A-A place in Fig. 5;
Fig. 7 has the winding of three layer line circles and the structural representation of core limb in the utility model.
Embodiment
A kind of 110kV that the utility model provides and above three dimensional wound core transformer, it is made by following technique for coiling, comprise coiling unshakable in one's determination and winding 2 coiling two parts processing step, wherein, technique for coiling step unshakable in one's determination is: first a magnetic conducting band 12 is passed through continuous reeling from inside to outside and form iron core frame 1, between layer and the magnetic conducting band 12 of layer, adhesive is increased during winding, and the first oil duct 15 is set in winding process together reels with magnetic conducting band 12, the iron core frame 1 then three with same structure carries out assembled, between split face, the second oil duct 16 and insulation pulling plate 14 is placed time assembled, by insulation pulling plate 14, the edge that two fit is strained and fixed, reeled rear formation three-phase stereo rewinding material,
Winding 2 wire winding step is: be first sleeved on by supporting plate 21 on core limb 10 unshakable in one's determination, then lower yoke insulating part 22 is assemblied on supporting plate 21, supporting plate 21 and leave running clearance between lower yoke insulating part 22 and core limb 10, interior insulating part 23 is fixed on lower yoke insulating part 22, described interior insulating part 23 is fixed together by boning or being spirally connected with lower yoke insulating part 22, using interior insulating part 23 and lower yoke insulating part 22 as winding mould, during coiling, coil winding machine 3 drives supporting plate 21 to rotate by transmission device 4, supporting plate 21 drives lower yoke insulating part 22 to rotate, lower yoke insulating part 22 drives interior insulating part 23 to rotate, thus by wire coiling on interior insulating part 23, form winding 2, transmission device 4 type can be divided into gear drive, Chain conveyer, V belt translation and bearing-transmission etc., coil winding machine 3 can control one or more transmission device 4, namely can polyphase windings 2 carry out during coiling simultaneously, save the time of winding 2 coiling, also can independently carry out by single-phase winding 2 as required, can more than coiling one deck coil 24 on every phase core limb 10.
During coiling lattice coil 24, after ground floor coil 24 coiling of winding 2 completes, ground floor coil 24 puts insulating part 23 in the second layer, startup coil winding machine 3 coiling second layer coil 24 after placement completes, now in the second layer, insulating part 23 and lower yoke insulate for the winding mould of second layer coil 24, carry out lattice coil 24 coiling by that analogy, this kind of winding method makes to reel between coil 24 and coil 24 closely, gapless, anti-short circuit capability strengthens, volume drying compression process is carried out after the coiling of whole winding 2 completes, upper yoke insulating part 25 after dry compression between assembling winding 2 and upper yoke.
In above-mentioned processing step, the outer surface of the iron core frame 1 after having reeled arranges one deck separator 13, thickness is 1-2mm, this separator 13 split face of solidified paint solidification iron core frame 1 when split is unshakable in one's determination.
With reference to Fig. 3 to Fig. 6, the 110kV made according to above-mentioned processing step and above three dimensional wound core transformer, comprise unshakable in one's determination and winding 2, described iron core is made up of three closed iron core frames 1, described iron core frame 1 by magnetic conducting band 12 from inside to outside continuous reeling form, described iron core frame 1 inside is provided with several the first oil ducts 15, described first oil duct 15 arranges at equal intervals and is arranged in wherein one deck magnetic conducting band 12 and reeling in the lump with magnetic conducting band 12, the plane side assembled formation three dimensional wound core structure bonded to each other on the munnion limit of three iron core frames 1, stitching portion is provided with insulation pulling plate 14 and is strained and fixed for the munnion limit of fitting two, two munnion limits are joined together to form the core limb 10 that cross section is quasi-circular, and stitching portion is provided with the second oil duct 16, described second oil duct 16 arranges between the munnion limit that fits vertically at equal intervals, the transverse frame edge of described iron core frame 1 is iron yoke 11.
Described winding 2 comprises coil 24, supporting plate 21, lower yoke insulating part 22 and interior insulating part 23, described supporting plate 21 is sleeved on core limb 10, described lower yoke insulating part 22 is assemblied on supporting plate 21, described interior insulating part 23 is fixed on lower yoke insulating part 22, described supporting plate 21 and leave between lower yoke insulating part 22 and core limb 10 and rotate space, the coiling of described coil 24 is enclosed within interior insulating part 23, winding 2 is also provided with the upper end that upper yoke insulating part 25 is assemblied in interior insulating part 23, coil 24 is clamped by upper yoke insulating part 25 and lower yoke insulating part 22, make the structure of winding 2 more firm.Winding 2 coiling is without the need to special winding mould, in utilizing, insulating part 23 and lower yoke insulating part 22 are as winding mould, without the need to dismounting after winding 2 installation, in aggregates with shape unshakable in one's determination, also carry out coiling without the need to dismantling structure unshakable in one's determination, easy to operate, winding 2 coil 24 of more than one deck can be provided with, between each layer line circle 24, place insulating part, gapless, anti-short circuit capability is strong, shown in Figure 7.
Preferably, the outer surface of described iron core frame 1 is provided with a separator 13, split face between the bonding iron core frame 1 of described separator 13, the corner position of the accurate semicircular structure of described iron core frame 1 is provided with the breach for placing insulation pulling plate 14, during assembled iron core, insulation pulling plate 14 can be placed in breach, avoids insulation pulling plate 14 to stretch out outside iron core.Described magnetic conducting band 12 silicon steel or other there is the band of magnetic conduction ability, its winding bandwidth successively changes makes core limb 10 and iron yoke 11 periphery arc transition.
In order to the structure with winding 2 unshakable in one's determination in firm transformer, the both sides up and down of described iron core are provided with upper clamping piece for being fixed winding 2 and lower clamping piece.Preferably, the axial height of described insulation pulling plate 14 is greater than the height of core limb 10 and is less than whole height unshakable in one's determination, and its upper and lower both ends are respectively arranged with the position, hole for connecting upper clamping piece and lower clamping piece.
Core limb 10 in the utility model is formed by magnetic conducting band 12 continuous reeling with iron yoke 11, have a style of one's own formation magnetic conductive loop, steel plate is not needed to clamp, iron core do not have wedge angle, the partial discharge quantity of effective reduction transformer, and covering separator 13 can reduce noise, makes the electric fields uniform between iron core and winding 2 distribute.
The above; just preferred embodiment of the present utility model; the utility model is not limited to the shape and structure mentioned in above-described embodiment, as long as it reaches technique effect of the present utility model with identical means, all should belong to protection range of the present utility model.
Claims (8)
1. a 110kV and above three dimensional wound core transformer, comprise iron core and winding, described iron core is made up of three closed iron core frames, it is characterized in that: described iron core frame by magnetic conducting band from inside to outside continuous reeling form, the plane side assembled formation three dimensional wound core structure bonded to each other on the munnion limit of three iron core frames, stitching portion is provided with insulation pulling plate and is strained and fixed for the munnion limit of fitting two, two munnion limits are joined together to form the core limb that cross section is quasi-circular, and the transverse frame edge of described iron core frame is iron yoke;
Described winding comprises coil, supporting plate, lower yoke insulating part and interior insulating part, described supporting plate is sleeved on core limb, described lower yoke insulating part is assemblied on supporting plate, described interior insulating part is fixed on lower yoke insulating part, described supporting plate and leave between lower yoke insulating part and core limb and rotate space, described coil winding is enclosed within interior insulating part.
2. a kind of 110kV according to claim 1 and above three dimensional wound core transformer, it is characterized in that: described iron core frame inside is provided with several the first oil ducts, described first oil duct arranges at equal intervals and is arranged in wherein one deck magnetic conducting band and reeling in the lump with magnetic conducting band.
3. a kind of 110kV according to claim 2 and above three dimensional wound core transformer, is characterized in that: described iron core frame stitching portion is provided with the second oil duct, and described second oil duct is arranged between the munnion limit that fits vertically at equal intervals.
4. a kind of 110kV according to claim 1,2 or 3 and above three dimensional wound core transformer, it is characterized in that: the outer surface of described iron core frame is provided with a separator, split face between the bonding iron core frame of described separator, the corner location of described iron core frame is provided with the breach for placing insulation pulling plate.
5. a kind of 110kV according to claim 4 and above three dimensional wound core transformer, it is characterized in that: described magnetic conducting band be silicon steel or other there is the band of magnetic conduction ability, its winding bandwidth successively changes makes core limb and iron yoke periphery arc transition.
6. a kind of 110kV according to claim 1 and above three dimensional wound core transformer, is characterized in that: the both sides up and down of described iron core are provided with upper clamping piece for being fixed winding and lower clamping piece.
7. a kind of 110kV according to claim 6 and above three dimensional wound core transformer, it is characterized in that: the axial height of described insulation pulling plate is greater than the height of core limb and is less than whole height unshakable in one's determination, and its upper and lower both ends are respectively arranged with the position, hole for connecting upper clamping piece and lower clamping piece.
8. a kind of 110kV according to claim 1 and above three dimensional wound core transformer, is characterized in that: described winding is also provided with the upper end that upper yoke insulating part is assemblied in interior insulating part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588683.2U CN204155722U (en) | 2014-10-11 | 2014-10-11 | A kind of 110kV and above three dimensional wound core transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588683.2U CN204155722U (en) | 2014-10-11 | 2014-10-11 | A kind of 110kV and above three dimensional wound core transformer |
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| Publication Number | Publication Date |
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| CN204155722U true CN204155722U (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420588683.2U Expired - Lifetime CN204155722U (en) | 2014-10-11 | 2014-10-11 | A kind of 110kV and above three dimensional wound core transformer |
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| CN (1) | CN204155722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243788A (en) * | 2018-11-26 | 2019-01-18 | 山东电工电气集团智能电气有限公司 | Transformer body and transformer |
-
2014
- 2014-10-11 CN CN201420588683.2U patent/CN204155722U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243788A (en) * | 2018-11-26 | 2019-01-18 | 山东电工电气集团智能电气有限公司 | Transformer body and transformer |
| CN109243788B (en) * | 2018-11-26 | 2024-02-27 | 山东电工电气集团智能电气有限公司 | Transformer body and transformer |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150211 |