CN102360896A - Gas current transformer - Google Patents
Gas current transformer Download PDFInfo
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- CN102360896A CN102360896A CN2011103258539A CN201110325853A CN102360896A CN 102360896 A CN102360896 A CN 102360896A CN 2011103258539 A CN2011103258539 A CN 2011103258539A CN 201110325853 A CN201110325853 A CN 201110325853A CN 102360896 A CN102360896 A CN 102360896A
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- secondary winding
- out wire
- plate tube
- insulator
- winding lead
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Abstract
The invention relates to a gas current transformer, in particular to an inverted SF6 (Sulfur Hexafluoride) gas insulated current transformer with a voltage of 35-500 kV, belonging to the technical field of a transformer. The technical scheme provided by the invention is as follows: the gas current transformer comprises a primary conductor (1), a shielding cover for a secondary winding (2), a disk-type insulator (3), a high-potential shielding cylinder (4), a shielding tube of a lead-out wire of the secondary winding (5), a compound hollow insulator (6), an SF6 gas (7), a base (8) and the like; the upper end of the shielding tube of the lead-out wire of the secondary winding is leveled and parallel to the upper end of the disk-type insulator; an insulating sleeve (9) is sealed and fixed on the upper end of the shielding tube of the lead-out wire of the secondary winding; and a gap is reserved between the insulating sleeve and the disk-type insulator. In the gas current transformer provided by the invention, the insulation reliability between the shielding tube of the lead-out wire of the secondary winding and the disk-type insulator is improved so that the insulation reliability of the transformer is ensured. Compared with the prior art, the gas current transformer provided by the invention has advantages of material saving, simple and novel structure, convenience for manufacture and installation, and safeness and reliability in the insulation performance.
Description
Technical field
The present invention 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.
Summary of the invention
The purpose of this invention is to provide a kind of gas current instrument transformer, guarantee 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, solve the problems referred to above that background technology exists.
Technical scheme of the present invention 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 5 and the disc insulator 3; 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, and upper surface is level and smooth, and the shape of lower surface and secondary winding lead-out wire shielded-plate tube upper end is complementary.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.
Good effect of the present invention: the present invention 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 present invention 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 embodiments of the invention sketch mapes;
Fig. 2 is an embodiments of the invention insulating case cross sectional representation;
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 present invention 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; 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, and upper surface is level and smooth, and the shape of lower surface and secondary winding lead-out wire shielded-plate tube upper end is complementary.
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, and upper surface is level and smooth, and the shape of lower surface and secondary winding lead-out wire shielded-plate tube upper end is complementary.
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 |
|---|---|---|---|
| CN2011103258539A CN102360896A (en) | 2011-10-25 | 2011-10-25 | Gas current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103258539A CN102360896A (en) | 2011-10-25 | 2011-10-25 | Gas current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102360896A true CN102360896A (en) | 2012-02-22 |
Family
ID=45586184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103258539A Pending CN102360896A (en) | 2011-10-25 | 2011-10-25 | Gas current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102360896A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709043A (en) * | 2012-07-03 | 2012-10-03 | 宁夏电力公司电力科学研究院 | High voltage sulfur hexafluoride gas-insulated current transformer with ultrahigh frequency partial discharge monitoring functions |
| CN111952051A (en) * | 2020-07-28 | 2020-11-17 | 国网河南省电力公司电力科学研究院 | Active defense internal discharge sulfur hexafluoride current transformer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201298447Y (en) * | 2008-11-21 | 2009-08-26 | 湖南省电力公司电瓷电器厂 | Novel sulfur hexafluoride gas insulation electronic mutual inductor |
| CN201549365U (en) * | 2009-10-14 | 2010-08-11 | 平高集团有限公司 | Current transformer |
| CN201898025U (en) * | 2010-11-04 | 2011-07-13 | 平高集团有限公司 | Current transformator and shielding case |
| CN201975247U (en) * | 2010-08-21 | 2011-09-14 | 衡阳市南方互感器有限公司 | 500 kV sulfur hexafluoride current transformer |
| CN202258764U (en) * | 2011-10-25 | 2012-05-30 | 保定天威集团有限公司 | Gas current transformer |
-
2011
- 2011-10-25 CN CN2011103258539A patent/CN102360896A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201298447Y (en) * | 2008-11-21 | 2009-08-26 | 湖南省电力公司电瓷电器厂 | Novel sulfur hexafluoride gas insulation electronic mutual inductor |
| CN201549365U (en) * | 2009-10-14 | 2010-08-11 | 平高集团有限公司 | Current transformer |
| CN201975247U (en) * | 2010-08-21 | 2011-09-14 | 衡阳市南方互感器有限公司 | 500 kV sulfur hexafluoride current transformer |
| CN201898025U (en) * | 2010-11-04 | 2011-07-13 | 平高集团有限公司 | Current transformator and shielding case |
| CN202258764U (en) * | 2011-10-25 | 2012-05-30 | 保定天威集团有限公司 | Gas current transformer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709043A (en) * | 2012-07-03 | 2012-10-03 | 宁夏电力公司电力科学研究院 | High voltage sulfur hexafluoride gas-insulated current transformer with ultrahigh frequency partial discharge monitoring functions |
| CN102709043B (en) * | 2012-07-03 | 2015-11-18 | 宁夏电力公司电力科学研究院 | A kind of high pressure sulfur hexafluoride gas insulated high voltage current transformer |
| CN111952051A (en) * | 2020-07-28 | 2020-11-17 | 国网河南省电力公司电力科学研究院 | Active defense internal discharge sulfur hexafluoride current transformer |
| CN111952051B (en) * | 2020-07-28 | 2022-04-22 | 国网河南省电力公司电力科学研究院 | Active defense internal discharge sulfur hexafluoride current transformer |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120222 |