CN2857174Y - Dual-layer spiral coil layered stay limiter of liquid-immersed power transformer - Google Patents
Dual-layer spiral coil layered stay limiter of liquid-immersed power transformer Download PDFInfo
- Publication number
- CN2857174Y CN2857174Y CN 200520200636 CN200520200636U CN2857174Y CN 2857174 Y CN2857174 Y CN 2857174Y CN 200520200636 CN200520200636 CN 200520200636 CN 200520200636 U CN200520200636 U CN 200520200636U CN 2857174 Y CN2857174 Y CN 2857174Y
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- stay
- coil
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- limiter
- power transformer
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Abstract
A dual-layer spiral coil layered stay limiter of liquid-immersed power transformer, belongs to the electric power transformer technical field, which includes: a dual-layer coil, wherein a stay is arranged in the insulation paper pot between the coils and between the coil and the paper pot, characterized in that, a rectangle notch is disposed on the paper pot between the dual-layer coil, having a stay limiter padding block at the transposition place between the inner and outer coil and the downside of the stay sliiped therein, with the aim to protect the layer stay to be blocked by the limiter padding block when the coil pressures and protect the turn insulation at the layer transposition place. The utility model has the advantages: a stay limiter padding block is added at the lower layer transposition place of the stay, wherein the layer stay is blocked by the limiter block when the coil pressures to protect the turn insulation at the layer transposition place.
Description
Technical field
The utility model belongs to the power transformer technical field, is suitable for adding at the oil immersed power transformer two-layer spiral coil installing and using man-hour.
Background technology
At present, in energy industry power transmission and distribution power industry, big capacity two coil oil immersed power transformers are widely used, this transformer adopts double-layer spiral formula structure at its coil mesolow coil, the coil outside is an insulating sleeve, between coil and sleeve, be added with stay, coil needs pressurized treatments after intact, stay contacts with coil and scratches winding wire during usually owing to the coil pressurization, reduced dielectric strength, brought hidden danger for the long-time running of transformer, the safe operation of entire equipment is had adverse effect.
Summary of the invention
For solving the deficiency of above transformer coil structure; the purpose of this utility model provides a kind of oil immersed power transformer two-layer spiral coil interlayer stay stopping means; adopted the stay guide vane end stop; keep interlayer stay limited blocking when coil pressurizes, to reach the dielectric strength of transposition between protective layer.
The structural design of the utility model is achieved in that its structure of oil immersed power transformer double-screw type coil interlayer stay stopping means includes double-layer coil, paper web is housed between the coil, between coil and low tube, stay (as shown in Figure 1) is housed, it is characterized in that having a rectangle notch at the paper web place of two-layer spiral coil interlayer, fill in the spacing cushion block of a stay, spacing cushion block is coil interlayer transposition (as shown in Figure 2) below stay is vertical, the spacing cushion block of stay is an arc insulation board (as shown in Figure 3), circular arc inwardly is inserted in the interlayer transposition, be that the lead exchange is local between ectonexine, be placed on stay under.
Advantage of the present utility model: the coil interlayer transposition has added the spacing cushion block of stay below stay, the interlayer stay when coil pressurizes limited block, protected the turn insulation of interlayer transposition.
Description of drawings
Fig. 1: be oil immersed power transformer two-layer spiral coil interlayer stay stopping means double-layer spiral coil cross-section structure;
Fig. 2: be oil immersed power transformer two-layer spiral coil interlayer stay stopping means coil cross-section structure;
Fig. 3: be the spacing cushion block structure chart of oil immersed power transformer two-layer spiral coil interlayer stay stopping means stay.
1 double-layer spiral coil among the figure, 2 paper webs, 3 stays, 4 stay line position cushion blocks.
Embodiment
The detailed structure of the utility model reaches embodiment in conjunction with the accompanying drawings and is illustrated.
The structure of the utility model as shown in drawings; 1 is two-layer spiral coil; be added with circular isolated insulation paper web 2 between the two-layer coil; add paper web 2 and bump brokenly insulating barrier to prevent two coil frictions; be added with stay 3 between paper web 2 and the coil; stay 3 is similarly insulating material and makes; be added between paper web 2 and the coil 1; with the relative distance of hold-in winding 1 with paper web 2; opening part at the bottom of coil 1 paper web 2 is equipped with stay line position cushion block 4, and this cushion block 4 is the arc batten, be placed on stay 3 under; it just is coil 1 interlayer transposition herein; easily by stay 3 when coil 1 pressurization, destroy wire insulation, put into stay cushion block 4 after; protected the turn insulation of transformer coil 1, the generation of minimizing accident.
Claims (2)
1. oil immersed power transformer two-layer spiral coil interlayer stay stopping means, this device includes double-layer coil (1), paper web (2) is housed between the coil, stay (3) is housed between coil and paper web, it is characterized in that having a rectangle notch at the paper web place of two-layer spiral coil (1) interlayer transposition, fill in the spacing cushion block of a stay (4), spacing cushion block (4) is the coil interlayer transposition below stay (3) is vertical, circular arc inwardly is inserted in the interlayer transposition, be that the lead exchange is local between ectonexine, be placed on stay (3) under.
2. by the described oil immersed power transformer two-layer spiral coil of claim 1 interlayer stay stopping means, it is characterized in that the spacing cushion block of stay (4) is an arc insulation board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520200636 CN2857174Y (en) | 2005-09-09 | 2005-09-09 | Dual-layer spiral coil layered stay limiter of liquid-immersed power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520200636 CN2857174Y (en) | 2005-09-09 | 2005-09-09 | Dual-layer spiral coil layered stay limiter of liquid-immersed power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2857174Y true CN2857174Y (en) | 2007-01-10 |
Family
ID=37600478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520200636 Expired - Lifetime CN2857174Y (en) | 2005-09-09 | 2005-09-09 | Dual-layer spiral coil layered stay limiter of liquid-immersed power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2857174Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984499A (en) * | 2010-07-16 | 2011-03-09 | 江苏上能变压器有限公司 | Three-phase generator transformer with super-large capacity |
| CN101930832B (en) * | 2009-06-26 | 2012-02-22 | 特变电工沈阳变压器集团有限公司 | Fan-shaped cushion block for converter transformers and installation method thereof |
| CN106449070A (en) * | 2016-09-30 | 2017-02-22 | 宁波三星医疗电气股份有限公司 | Current transformer and coil winding method thereof |
| CN113314314A (en) * | 2021-05-19 | 2021-08-27 | 辽宁华冶集团发展有限公司 | High-reliability frequency converter phase-shifting rectifier transformer |
-
2005
- 2005-09-09 CN CN 200520200636 patent/CN2857174Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930832B (en) * | 2009-06-26 | 2012-02-22 | 特变电工沈阳变压器集团有限公司 | Fan-shaped cushion block for converter transformers and installation method thereof |
| CN101984499A (en) * | 2010-07-16 | 2011-03-09 | 江苏上能变压器有限公司 | Three-phase generator transformer with super-large capacity |
| CN101984499B (en) * | 2010-07-16 | 2012-07-11 | 江苏上能新特变压器有限公司 | Three-phase generator transformer with super-large capacity |
| CN106449070A (en) * | 2016-09-30 | 2017-02-22 | 宁波三星医疗电气股份有限公司 | Current transformer and coil winding method thereof |
| CN113314314A (en) * | 2021-05-19 | 2021-08-27 | 辽宁华冶集团发展有限公司 | High-reliability frequency converter phase-shifting rectifier transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 110025 NO.18, N.2ND MIDDLE ROAD, TIEXI DISTRICT, SHENYANG CITY, LIAONING PROVINCE TO: 110144 NO.32, KAIFA ROAD, SHENYANG CITY ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100604 Address after: 110144 Shenyang economic and Technological Development Zone Development Road No. 32 Patentee after: TBEA Shenyang Transformer (Group) Co., Ltd. Address before: 110025 eighteen, No. two middle North Road, Tiexi District, Liaoning, Shenyang Patentee before: Technology Centre, Shenyang Transformer Group Co., Ltd., Tebian Diangong |
|
| CX01 | Expiry of patent term |
Expiration termination date: 20150909 Granted publication date: 20070110 |
|
| EXPY | Termination of patent right or utility model |