CN202258764U - Gas current transformer - Google Patents
Gas current transformer Download PDFInfo
- Publication number
- CN202258764U CN202258764U CN2011204083081U CN201120408308U CN202258764U CN 202258764 U CN202258764 U CN 202258764U CN 2011204083081 U CN2011204083081 U CN 2011204083081U CN 201120408308 U CN201120408308 U CN 201120408308U CN 202258764 U CN202258764 U CN 202258764U
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- CN
- China
- Prior art keywords
- secondary winding
- out wire
- winding lead
- plate tube
- insulator
- Prior art date
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Abstract
The utility model relates to a gas current transformer, in particular to an inverted SF6 gas insulated current transformer of 35-500 kV, which belongs to the technical field of transformers. According to a technical scheme of the utility model, the gas current transformer comprises a primary conductor (1), a secondary winding shielding cover (2), a basin type insulator (3), a high potential shielding barrel (4), a secondary winding lead-out wire shielding tube (5), a hollow composite insulator (6), an SF6 gas (7), a base (8) and the like, wherein the upper end of the secondary winding lead-out wire shielding tube is flush with the upper end of the basin type insulator; an insulating sleeve (9) is hermetically fixed at the upper end of the secondary winding lead-out wire shielding tube; and a gap is reserved between the insulating sleeve and the basin type insulator. Due to the adoption of the gas current transformer, the insulating reliability between the secondary winding lead-out wire shielding tube and the basin type insulator is enhanced, and the insulating reliability of a product is ensured. Compared with the prior art, the gas current transformer has the advantages of saving in materials, simple and novel structure, convenience for manufacturing and installing and safe and reliable insulating performance.
Description
Technical field
The utility model relates to the inverted SF of a kind of gas current instrument transformer, particularly 35～500kV
6Gas insulated high voltage current transformer belongs to the instrument transformer technical field.
Background technology
In the background technology, the inverted SF of 35～500kV
6Gas insulated high voltage current transformer is generally by Primary Conductor, housing, secondary winding radome, secondary winding, secondary winding lead-out wire shielded-plate tube, high potential shielding cylinder, base, insulator (or hollow combined insulator), SF
6Composition such as gas, disc insulator; Secondary winding lead-out wire shielded-plate tube stretches into disc insulator inside, and the shielded-plate tube upper end is nearer with the disc insulator insulation distance, especially the above product of 220kV; Its shielded-plate tube is very long; And the transportation of need droping to the ground, skew takes place and then causes shielded-plate tube to the disc insulator insulation breakdown in shielded-plate tube easily, influences product quality and security performance.
The utility model content
The purpose of the utility model provides a kind of gas current instrument transformer, guarantees that secondary winding lead-out wire shielded-plate tube to the insulating reliability between the disc insulator, improves the quality of products and security performance, solves the problems referred to above that background technology exists.
The technical scheme of the utility model is: a kind of gas current instrument transformer comprises Primary Conductor 1, secondary winding radome 2, disc insulator 3, high potential shielding cylinder 4, secondary winding lead-out wire shielded-plate tube 5, hollow combined insulator 6, SF
6Gas 7 and base 8; Primary Conductor and secondary winding radome are arranged on the top; Be disc insulator, high potential shielding cylinder, secondary winding lead-out wire shielded-plate tube, hollow combined insulator below; Secondary winding lead-out wire shielded-plate tube is arranged in the hollow combined insulator, and hollow combined insulator is arranged on the base, in fill SF
6Gas; Its special feature is: secondary winding lead-out wire shielded-plate tube upper end is concordant with the disc insulator upper end; And at insulating case of secondary winding lead-out wire shielded-plate tube upper end sealing and fixing; Leave the gap between insulating case and the disc insulator, make secondary winding lead-out wire shielded-plate tube remain on the center of disc insulator.
Technique scheme has guaranteed the insulation stability between secondary winding lead-out wire shielded-plate tube and the disc insulator; Product quality and security performance have been improved; Even secondary winding lead-out wire shielded-plate tube squints, contact with disc insulator, because of the creepage distance of insulating case long; Also can guarantee the insulation property here, unlikely puncture.
Said insulating case can be the insulating case that silicon rubber, ethylene propylene diene rubber or epoxide resin material are processed; Insulating case is a ring-type, above level and smooth, the shape with secondary winding lead-out wire shielded-plate tube upper end is complementary below.Insulating case is fixed with fluid sealant or directly used poured with epoxy resin in secondary winding lead-out wire shielded-plate tube upper end.
The good effect of the utility model: the utility model is improved the insulating reliability between secondary winding lead-out wire shielded-plate tube and the disc insulator; And then guaranteed the insulating reliability of product; Compared with prior art, the utlity model has the saving material, novelty simple in structure; Fabrication and installation are convenient, the advantage that insulation property are safe and reliable.
Description of drawings
Fig. 1 is the embodiment sketch map of the utility model;
Fig. 2 is the embodiment insulating case cross sectional representation of the utility model;
Among the figure: Primary Conductor 1, secondary winding radome 2, disc insulator 3, high potential shielding cylinder 4, secondary winding lead-out wire shielded-plate tube 5, hollow combined insulator 6, SF
6Gas 7 and base 8, insulating case 9.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further specified through embodiment.
A kind of gas current instrument transformer comprises Primary Conductor 1, secondary winding radome 2, disc insulator 3, high potential shielding cylinder 4, secondary winding lead-out wire shielded-plate tube 5, hollow combined insulator 6, SF
6Gas 7 and base 8 etc.; Primary Conductor and secondary winding radome are arranged on the top; Be disc insulator, high potential shielding cylinder, secondary winding lead-out wire shielded-plate tube, hollow combined insulator below; Secondary winding lead-out wire shielded-plate tube is arranged in the hollow combined insulator, and hollow combined insulator is arranged on the base, in fill SF
6Gas; Its special feature is: secondary winding lead-out wire shielded-plate tube upper end is concordant with the disc insulator upper end; And at insulating case 9 of secondary winding lead-out wire shielded-plate tube upper end sealing and fixing; Leave the gap between insulating case and the disc insulator; Guarantee easy for installationly, also make secondary winding lead-out wire shielded-plate tube remain on the center of disc insulator basically.
Said insulating case can be the insulating case that materials such as silicon rubber, ethylene propylene diene rubber or epoxy resin are processed; Insulating case is fixed with fluid sealant or directly used poured with epoxy resin in secondary winding lead-out wire shielded-plate tube upper end.
With reference to accompanying drawing 2, insulating case is a ring-type, above level and smooth, the shape with secondary winding lead-out wire shielded-plate tube upper end is complementary below.
Claims (3)
1. a gas current instrument transformer comprises Primary Conductor (1), secondary winding radome (2), disc insulator (3), high potential shielding cylinder (4), secondary winding lead-out wire shielded-plate tube (5), hollow combined insulator (6), SF
6Gas (7) and base (8); Primary Conductor and secondary winding radome are arranged on the top; Be disc insulator, high potential shielding cylinder, secondary winding lead-out wire shielded-plate tube, hollow combined insulator below; Secondary winding lead-out wire shielded-plate tube is arranged in the hollow combined insulator, and hollow combined insulator is arranged on the base, in fill SF
6Gas; It is characterized in that: secondary winding lead-out wire shielded-plate tube upper end is concordant with the disc insulator upper end; And in secondary winding lead-out wire shielded-plate tube upper end an insulating case of sealing and fixing (9); Leave the gap between insulating case and the disc insulator, make secondary winding lead-out wire shielded-plate tube remain on the center of disc insulator.
2. a kind of gas current instrument transformer according to claim 1 is characterized in that said insulating case is the insulating case that silicon rubber, ethylene propylene diene rubber or epoxide resin material are processed; Insulating case is a ring-type, above level and smooth, the shape with secondary winding lead-out wire shielded-plate tube upper end is complementary below.
3. according to claim 1 or 2 said a kind of gas current instrument transformers, it is characterized in that insulating case is fixed with fluid sealant or directly used poured with epoxy resin in secondary winding lead-out wire shielded-plate tube upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204083081U CN202258764U (en) | 2011-10-25 | 2011-10-25 | Gas current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204083081U CN202258764U (en) | 2011-10-25 | 2011-10-25 | Gas current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202258764U true CN202258764U (en) | 2012-05-30 |
Family
ID=46119970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204083081U Expired - Fee Related CN202258764U (en) | 2011-10-25 | 2011-10-25 | Gas current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202258764U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360896A (en) * | 2011-10-25 | 2012-02-22 | 保定天威集团有限公司 | Gas current transformer |
-
2011
- 2011-10-25 CN CN2011204083081U patent/CN202258764U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360896A (en) * | 2011-10-25 | 2012-02-22 | 保定天威集团有限公司 | Gas current transformer |
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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: 20120530 Termination date: 20151025 |
|
| EXPY | Termination of patent right or utility model |