CN1750191A - Compressing method for transformer body - Google Patents
Compressing method for transformer body Download PDFInfo
- Publication number
- CN1750191A CN1750191A CN 200410155306 CN200410155306A CN1750191A CN 1750191 A CN1750191 A CN 1750191A CN 200410155306 CN200410155306 CN 200410155306 CN 200410155306 A CN200410155306 A CN 200410155306A CN 1750191 A CN1750191 A CN 1750191A
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- China
- Prior art keywords
- coil
- binding tape
- cushion block
- transformer
- stay
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Abstract
This invention relates to a compressing method for a transformer, which first of all puts a fastening strip in the slot of a cushion block and puts bars on the cushion block open-end side then to put the bars on the winding mold for winding the coil after that, the coil is arranged, dried and compacted on the compressing bed and the fastening strip is shrunk tightly.
Description
Technical field:
The present invention relates to a kind of manufacture method of transformer body, the compressing method that adopts when particularly a kind of transformer body is made.
Background technology:
Unexpected short trouble may take place in the transformer running, in case generation external short circuit, transformer coil is under very big short circuit current effect, can produce huge electric power, may cause the distortion of transformer Inside coil, facilitate coil turn-to-turn short circuit to cause the accident, so the dynamic stability of transformer operation is a key issue when running into short trouble.For high-power transformer, its anti-short circuit capability is just more important.At present, transformer production producer all adopts various measures on one's body at transformer, with inner-outer coil compress, compacting, to improve the anti-short circuit capability of transformer.General measure is to adopt common pressure plate structure, be to compress inside and outside a plurality of coils under the common insulating press boards, when coil is dry, adopt the pressure drying,, and under the situation that coil height meets the demands, flow into next procedure dried coil pressure pressurization.But because influence of various factors, often form device body drying after, the aspect ratio exterior loop of interior loop is low, under shared pressure plate structure, interior loop is cannot kept under control like this, interior loop occurs and suspends.The shortcoming of this compactor body method is: 1, inner-outer coil pressure inequality, and it is low interior loop to occur, cannot keeps under control interior loop and produces unsettled phenomenon, be i.e. interior loop " dancing " phenomenon; 2, the device body is lifted one's head when being stretched out by insulating press boards top, makes pure oil distance between lifting one's head be kept to creepage distance along cardboard, voltage between lifting one's head is raise be restricted; 3, the pressing plate between the barred window, employing is made chock and is compressed coil, because the insulating press boards distortion, thrust is uncontrollable; 4, press the nail compressing structure cause difficulty can for the end outlet structure, and it is more complicated that the end field intensity becomes, cause the bushing shell for transformer voltage equalizing ball of end outlet structure to be lifted in the seat that raises, easily form phenomenons such as pressing the suspension of nail bowl, thereby become the defective factor of partial discharge; 5, all adopt the insulating laminated sheet manufacturing at the transformer body pressing plate of making voltage levels, factory needs large hydraulic press, has increased the transformer manufacturing cost.
Summary of the invention:
The objective of the invention is the above-mentioned defective at prior art, a kind of compressing method of novel transformer body is provided, can solve in the transformer manufacture process, inner-outer coil pressure is inhomogeneous, defectives such as anti-sudden short circuit ability.
Technical scheme of the present invention is: a kind of compressing method for transformer body, at first binding tape is through in the open slot of cushion block, put on stay in the cushion block open side of putting on binding tape, then stay is placed on the coiling of the enterprising line circle of winding former, binding tape is positioned at the outside diameter of stay during coiling, and the line cake is on binding tape; After the coil winding completion, through arrangement, drying, coil compresses on press, when the pressure of press meets the cushion block thrust, with equipment binding tape is tightened up.
The invention provides its major advantage of a kind of compressing method for transformer body is: 1, because single coil is the reduced overall compressing structure, compressing operation carries out on equipment, stressedly evenly can reach pressure, the coupling mechanism force of regulation, improve the anti-short circuit capability of coil own; 2, adopt this device body compressing method to cancel and press nail, thereby avoided by the partial discharge of pressing the nail bowl to suspend and cause, improved the end Electric Field Distribution, can be by moving on in the fuel tank in the seat that raises to the bushing shell for transformer voltage equalizing ball of end outlet structure, thus reduce the height of the seat that raises; 3, the insulating press boards of coil is responsible for compressing in cancellation device body, has saved a large amount of insulating boards; 4, because whole contracted structure during single coil, solved the resilience problem of coil, particularly to the resilience problem of king bolt coil, the high manufacturing process nargin of window unshakable in one's determination can be dwindled greatly simultaneously, and produce transformer in the humid area particularly important; 5, this method has reduced the weight that lower platen is born, so the thickness of lower platen can reduce, has saved material; 6, because compressing in the axial direction of coil carried out, product does not need to carry out secondary compression after drying, saved man-hour.
Description of drawings:
Fig. 1: schematic diagram of the present invention
Fig. 2: binding tape of the present invention is tightened the mode schematic diagram
1-coil 2-cushion block 3-binding tape 4-line cake 5-stay 6-overhang insulation
Embodiment:
Now 1 concrete execution mode of the present invention is described in conjunction with the accompanying drawings.The present invention is a kind of compressing method of transformer body, carry out in the following order: at first, binding tape 3 is passed in cushion block 2 grooves, see accompanying drawing 2, passing from cushion block 2 open side of stay 5 is placed on stay 5 coiling of the enterprising line circle 1 of insulating cylinder of winding former or winding former then; Binding tape 3 is positioned at the outside diameter of stay 5 during coiling, and line cake 4 is on binding tape 3; After coil 1 coiling was intact, process was put in order, drying, coil 1 was put on the press to compress again, when the pressure of press meets the thrust of cushion block 2, with equipment binding tape 3 was tightened up.Other line cakes 4 of coil 1 all tighten up in this order.
If the device body end of transformer has the square ring structure, can utilize method of the present invention to compress separately coil 1, other insulating parts of suit again when treating coil 1 assembling or insulation assembling.If the square ring structure is not with in the transformer body end, overhang insulation 6 is compressed according to method of the present invention with coil 1, and then assembling.
Claims (3)
1. a compressing method for transformer body is characterized in that: at first binding tape is through in the fluting of cushion block, puts on stay in the cushion block open side of putting on binding tape; Then stay is placed on the coiling of the enterprising line circle of winding former, binding tape is positioned at the outside diameter of stay during coiling, and the line cake is on binding tape; After the coil winding completion, through arrangement, drying, coil compresses on press, when the pressure of press meets the cushion block thrust, with equipment binding tape is tightened up.
2. a kind of structure of transformer body as claimed in claim 1 is characterized in that binding tape is between stay and cushion block.
3. a kind of structure of transformer body as claimed in claim 1 is characterized in that coil adopts binding tape locking with overhang insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410155306 CN1750191A (en) | 2004-09-15 | 2004-09-15 | Compressing method for transformer body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410155306 CN1750191A (en) | 2004-09-15 | 2004-09-15 | Compressing method for transformer body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1750191A true CN1750191A (en) | 2006-03-22 |
Family
ID=36605569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410155306 Pending CN1750191A (en) | 2004-09-15 | 2004-09-15 | Compressing method for transformer body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1750191A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101178975B (en) * | 2006-11-10 | 2010-12-22 | 西安西电变压器有限责任公司 | Compacting process of flexible pipe on transformer |
| CN102938313A (en) * | 2012-11-22 | 2013-02-20 | 天威保变（秦皇岛）变压器有限公司 | Transformer body compression process |
| WO2013044510A1 (en) * | 2011-09-30 | 2013-04-04 | Siemens Aktiengesellschaft | Method of assembling electric transformer |
| CN103187149A (en) * | 2011-12-30 | 2013-07-03 | 洛阳恒光特种变压器有限公司 | Transformer coil breakdown prevention method |
| CN109326426A (en) * | 2017-08-01 | 2019-02-12 | 特变电工沈阳变压器集团有限公司 | A kind of AT power supply tractive transformer low-voltage coil structure and winding method |
-
2004
- 2004-09-15 CN CN 200410155306 patent/CN1750191A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101178975B (en) * | 2006-11-10 | 2010-12-22 | 西安西电变压器有限责任公司 | Compacting process of flexible pipe on transformer |
| WO2013044510A1 (en) * | 2011-09-30 | 2013-04-04 | Siemens Aktiengesellschaft | Method of assembling electric transformer |
| CN103843085A (en) * | 2011-09-30 | 2014-06-04 | 西门子公司 | Method of assembling electric transformer |
| CN103843085B (en) * | 2011-09-30 | 2016-06-08 | 西门子公司 | The method of assembling piezoelectric transformer |
| CN103187149A (en) * | 2011-12-30 | 2013-07-03 | 洛阳恒光特种变压器有限公司 | Transformer coil breakdown prevention method |
| CN102938313A (en) * | 2012-11-22 | 2013-02-20 | 天威保变（秦皇岛）变压器有限公司 | Transformer body compression process |
| CN109326426A (en) * | 2017-08-01 | 2019-02-12 | 特变电工沈阳变压器集团有限公司 | A kind of AT power supply tractive transformer low-voltage coil structure and winding method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |