CN2731663Y - Upper end insulated coil for high voltage coil of non-packed dry type transformer - Google Patents
Upper end insulated coil for high voltage coil of non-packed dry type transformer Download PDFInfo
- Publication number
- CN2731663Y CN2731663Y CN 200420079723 CN200420079723U CN2731663Y CN 2731663 Y CN2731663 Y CN 2731663Y CN 200420079723 CN200420079723 CN 200420079723 CN 200420079723 U CN200420079723 U CN 200420079723U CN 2731663 Y CN2731663 Y CN 2731663Y
- Authority
- CN
- China
- Prior art keywords
- coil
- high voltage
- type transformer
- dry type
- packed dry
- 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 - Fee Related
Links
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims description 11
- 239000004020 conductor Substances 0.000 abstract description 3
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
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- Insulating Of Coils (AREA)
Abstract
The utility model provides an upper end insulated coil for high voltage coil of non-packed dry type transformer, which is a wide-band plane circle with an inner diameter with the same size of the outer diameter of the high voltage insulation cylinder of a non-packed dry type transformer. The upper end insulated coil for high voltage coil of non-packed dry type transformer is used as a cover added on the upper end of the high voltage coil, thus, the gap between the high voltage insulation cylinder and the high-voltage coil conductor is no longer existed in the vertical direction. The upper end insulated coil for high voltage coil of non-packed dry type transformer has the advantages that the creepage and the burn accident are avoided by avoiding the foreign matter fallen in the gap, and the overall stability of the high voltage coil of the non-packed dry type transformer is improved.
Description
Technical field
The utility model relates to a kind of transformer coil insulating end ring, especially a kind of no-encapsulated-winding dry-type transformer high-tension coil upper end insulating end ring.
Background technology
At present, the insulating end ring of no-encapsulated-winding dry-type transformer high-tension coil lies in a horizontal plane in the coil upper end face, and its effect is the insulation as coil, improves the overall mechanical strength and the anti-short circuit capability of coil.Because the insulating end ring internal diameter is bigger, its direct level is enclosed within the transformer coil horizontal tail stay outside (seeing Fig. 4, Fig. 5, Fig. 6), like this, there is the gap in vertical direction between coil insulation tube and the high-tension coil conductor, causes the creepage condition of having created for foreign matter falls into the gap.No-encapsulated-winding dry-type transformer is placed in the air and moves, and airborne foreign matter even metallic foreign body very easily fall in the transformer coil.Special in south, the bigger place of humidity such as coastal, basement, this phenomenon can make transformer insulated resistance descend, and transformer insulated surface often occur and is drenched and reveal, and the phenomenon that causes transformer coil to burn.
Summary of the invention
For overcoming the shortcoming of prior art, technical problem to be solved in the utility model provides a kind of no-encapsulated-winding dry-type transformer high-tension coil upper end insulating end ring that does not allow foreign matter fall into the space.
For separating above technical problem, the technical scheme that is adopted is such: the insulating end ring of prior art is made into the broadband type plane circle that internal diameter equals no-encapsulated-winding dry-type transformer High-Voltage Insulation tube external diameter.
Owing to adopt such scheme, equal to have added a lid in the high-tension coil upper end, make between transformer coil High-Voltage Insulation tube and the high-tension coil conductor, no longer there is the gap in vertical direction, avoid foreign matter to fall into the gap and caused creepage, burnout failure, also improved the resistance to overturning of no-encapsulated-winding dry-type transformer high-tension coil simultaneously.
Description of drawings
Fig. 1 is vertical section structure figure of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the partial enlarged drawing of I among Fig. 1.
Fig. 4 is the vertical section structure figure of prior art.
Fig. 5 is the vertical view of Fig. 4.
Fig. 6 is the partial enlarged drawing of II among Fig. 4.
Among the figure: 1, insulating end ring 2, horizontal tail cushion block 3, lead 4, High-Voltage Insulation tube 5, horizontal tail stay
Embodiment
Referring to Fig. 2, Fig. 3, according to no-encapsulated-winding dry-type transformer capacity and grade, insulating material is made into the no-encapsulated-winding dry-type transformer high-tension coil upper end insulating end ring (1) in certain altitude and certain inside and outside footpath, during use, as long as with its outside that is enclosed within high-tension coil upper end High-Voltage Insulation tube (4), press-fit again and dipping lacquer.
Claims (1)
1, a kind of no-encapsulated-winding dry-type transformer high-tension coil upper end insulating end ring is characterized in that insulating end ring (1) is the broadband type plane circle that an internal diameter equals no-encapsulated-winding dry-type transformer High-Voltage Insulation tube (4) external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420079723 CN2731663Y (en) | 2004-09-23 | 2004-09-23 | Upper end insulated coil for high voltage coil of non-packed dry type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420079723 CN2731663Y (en) | 2004-09-23 | 2004-09-23 | Upper end insulated coil for high voltage coil of non-packed dry type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2731663Y true CN2731663Y (en) | 2005-10-05 |
Family
ID=35051988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420079723 Expired - Fee Related CN2731663Y (en) | 2004-09-23 | 2004-09-23 | Upper end insulated coil for high voltage coil of non-packed dry type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2731663Y (en) |
-
2004
- 2004-09-23 CN CN 200420079723 patent/CN2731663Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |