CN202905425U - Insulating paper drum for ultra high voltage transformer - Google Patents
Insulating paper drum for ultra high voltage transformer Download PDFInfo
- Publication number
- CN202905425U CN202905425U CN 201220602011 CN201220602011U CN202905425U CN 202905425 U CN202905425 U CN 202905425U CN 201220602011 CN201220602011 CN 201220602011 CN 201220602011 U CN201220602011 U CN 201220602011U CN 202905425 U CN202905425 U CN 202905425U
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- CN
- China
- Prior art keywords
- insulating
- high voltage
- paper drum
- voltage transformer
- paper web
- 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
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- Insulating Of Coils (AREA)
Abstract
The utility model discloses an insulating paper drum for an ultra high voltage transformer. The insulating paper drum comprises a paper drum body, wherein insulating struts for supporting a coil are distributed on the paper drum body; two sets of electrostatic rings are arranged on the outer side of the insulating struts on the paper drum body at intervals; and key groove pads are arranged between the electrostatic rings. By the insulating paper drum, a certain gap is reserved between the coil and the paper drum, so that the insulating property between the coils of the transformer is improved.
Description
Technical field
The utility model relates to electric insulation spare and manufactures field, particularly a kind of insulating paper cylinder for super extra-high voltage transformer.
Background technology
The rated voltage of common EHV transformer is all at 350KV to 500KV, and the rated voltage of extra-high voltage transformer is all at 750KV with more than the 750KV.The insulating paper cylinder that is used for super extra-high voltage transformer is arranged on the insulating part between the inner-outer coil of transformer, therefore, its insulation property are very large on the impact in useful life of transformer, guarantee that insulation property reach the requirement of withstand voltage of super extra-high voltage transformer, existing paper web typically uses the tubbiness that insulating paper is made, coil directly contacts with the wall of paper web, punctures easily.
Summary of the invention
The purpose of this utility model is for the existing insulating paper cylinder for super extra-high voltage transformer described in the background technology, coil directly contacts with the wall of paper web, the problem that punctures easily provides a kind of insulating paper cylinder that is used for super extra-high voltage transformer that can solve foregoing problems.
The technical scheme that realizes the purpose of this utility model is as follows:
A kind of insulating paper cylinder for super extra-high voltage transformer, it comprises the paper web body, is distributed with insulating stay for support coils at the paper web body, on the paper web body, the outside of insulating stay is arranged at intervals with two groups of electrostatic rings, is provided with key groove cushion block between the electrostatic ring.
For to making the certain gap of maintenance between coil and the insulating paper cylinder, and form the passage of logical insulating oil between insulating stay, described insulating stay evenly distributes on the circumference of paper web body.
Insulating paper cylinder for super extra-high voltage transformer of the present utility model is evenly distributed with insulating stay at the circumference of paper web body, makes the certain gap of maintenance between coil and the paper web, be convenient to pass into insulating oil, improved insulation property, prevented that coil from puncturing, and provides support coil by electrostatic ring.
Description of drawings
Fig. 1 is the structural representation that is used for the insulating paper cylinder of super extra-high voltage transformer;
Among the figure, 1 is the paper web body, and 2 is insulating stay, and 3 is electrostatic ring, and 4 is key groove cushion block.
Embodiment
Carry out detailed illustrating below in conjunction with 1 pair of the utility model of accompanying drawing:
Embodiment 1
As shown in fig. 1, a kind of insulating paper cylinder for super extra-high voltage transformer, it comprises the paper web body, be distributed with insulating stay 2 for support coils at paper web body 1, on paper web body 1, the outside of insulating stay 2 is arranged at intervals with two groups of electrostatic rings 3, is provided with key groove cushion block 4 between the electrostatic ring.
For to making the certain gap of maintenance between coil and the insulating paper cylinder, and form the passage of logical insulating oil between insulating stay 2, described insulating stay 2 evenly distributes on the circumference of paper web body 1.
Claims (2)
1. insulating paper cylinder that is used for super extra-high voltage transformer, it is characterized in that: it comprises the paper web body, is distributed with insulating stay for support coils at the paper web body, on the paper web body, the outside of insulating stay is arranged at intervals with two groups of electrostatic rings, is provided with key groove cushion block between the electrostatic ring.
2. the insulating paper cylinder for super extra-high voltage transformer according to claim 1 is characterized in that: described insulating stay evenly distributes on the circumference of paper web body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602011 CN202905425U (en) | 2012-11-15 | 2012-11-15 | Insulating paper drum for ultra high voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602011 CN202905425U (en) | 2012-11-15 | 2012-11-15 | Insulating paper drum for ultra high voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202905425U true CN202905425U (en) | 2013-04-24 |
Family
ID=48126063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220602011 Expired - Fee Related CN202905425U (en) | 2012-11-15 | 2012-11-15 | Insulating paper drum for ultra high voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202905425U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105632724A (en) * | 2016-03-29 | 2016-06-01 | 常州东芝舒电变压器有限公司 | Insulation structure between axially distributed coils |
-
2012
- 2012-11-15 CN CN 201220602011 patent/CN202905425U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105632724A (en) * | 2016-03-29 | 2016-06-01 | 常州东芝舒电变压器有限公司 | Insulation structure between axially distributed coils |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20141115 |
|
| EXPY | Termination of patent right or utility model |