CN103227042A - Shielded wire grounding structure of impregnated dry-type transformer coil - Google Patents
Shielded wire grounding structure of impregnated dry-type transformer coil Download PDFInfo
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- CN103227042A CN103227042A CN2013101279629A CN201310127962A CN103227042A CN 103227042 A CN103227042 A CN 103227042A CN 2013101279629 A CN2013101279629 A CN 2013101279629A CN 201310127962 A CN201310127962 A CN 201310127962A CN 103227042 A CN103227042 A CN 103227042A
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- type transformer
- coil
- securing member
- fastener assembly
- impregnated dry
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Abstract
The invention discloses a shielded wire grounding structure of an impregnated dry-type transformer coil, which includes a metal clamp, a fastener assembly, a coil shielded wire, an insulating T-shaped pad and an insulating flat pad, wherein the metal clamp and the fastener assembly are fixedly connected; the coil shielded wire is fixedly connected onto the fastener assembly; the insulating T-shaped pad and the insulating flat pad are arranged between the fastener assembly and the metal clamp; a user grounding wire is also fixedly connected onto the fastener assembly; and the fastener assembly includes a screw and multiple nuts. According to the shielded wire grounding structure of the impregnated dry-type transformer coil, the insulating T-shaped pad and the insulating flat pad are added between the fastener assembly and the metal clamp, so that the fastener assembly and the metal clamp are separated completely, the reliability of grounding of the coil shielded wire is improved, and the safety of the impregnated dry-type transformer during use is ensured.
Description
Technical field
The present invention relates to a kind of shielding conductor ground structure, relate in particular to a kind of shielding conductor ground structure that is used for the impregnated dry-type transformer coil.
Background technology
Dry-type transformer relies on cross-ventilation to cool off, generally be used for localized lighting, electronic circuit, the isallobaric device of plant equipment, present dry-type transformer mainly contains impregnated and epoxy resin formula two major types, wherein the advantage of impregnated dry-type transformer is to need not casting equipment and mould, production cost is low, and the flexibility of product design is also bigger.
In the production of reality, for increasing the compressive resistance between the primary and secondary coil of dry-type transformer, the capacitor discharge of avoiding or reducing between primary and secondary coil disturbs, between primary and secondary coil, can design place screen, by to shielding layer grounding, the capacitor discharge that produces between primary and secondary coil is drawn by shielding layer grounding, thereby improved the compressive resistance between primary and secondary coil, generally speaking, as shown in Figure 1, on the metal folder of device body, wherein the metal folder is connected with user's earth connection the earth connection of screen by screw rod and nut.
But for the dry-type transformer of impregnated behind vacuum paint dipping, metal folder surface can adhere to impregnated insulating paint, so just must thoroughly remove insulating varnish, otherwise can influence the reliability of bonding, and removing insulating varnish can corrode the overlay coating of metal folder simultaneously, cause impregnated dry-type transformer to cause damage, in use can have potential safety hazard.
Summary of the invention
Technical problem at above-mentioned existence the objective of the invention is: the shielding conductor ground structure that has proposed the high impregnated dry-type transformer coil of a kind of shielding conductor ground connection reliability.
Technical solution of the present invention is achieved in that a kind of shielding conductor ground structure of impregnated dry-type transformer coil, comprise metal folder, securing member combination, coil shielding conductor, insulation T type pad and insulation plain cushion, described metal folder and securing member combination are fixedly linked, and described coil shielding conductor is fixedly connected in the securing member combination; Be provided with insulation T type pad and insulation plain cushion between described securing member combination and the metal folder.
Preferably, also be fixedly connected with user's ground link in the described securing member combination.
Preferably, described securing member combination comprises screw rod and a plurality of nut.
Because the utilization of technique scheme, the present invention compared with prior art has following advantage:
The shielding conductor ground structure of a kind of impregnated dry-type transformer coil of the present invention program, by between metal folder and securing member combination, having increased insulation T type pad and insulation plain cushion, the securing member combination is separated fully with the metal folder, improve the reliability of coil shielding conductor ground connection, guaranteed the fail safe when impregnated dry-type transformer uses.
Description of drawings
Below in conjunction with accompanying drawing technical solution of the present invention is described further:
Accompanying drawing 1 is the structural representation of shielding conductor ground connection of the impregnated dry-type transformer coil of prior art;
Accompanying drawing 2 is the structural representation of the shielding conductor ground connection of impregnated dry-type transformer coil of the present invention;
Wherein: 1, metal folder; 2, screw rod; 3, coil shielding conductor; 4, insulation T type pad; 5, insulation plain cushion; 6, user's ground link; 7, nut.
Embodiment
Below in conjunction with accompanying drawing the present invention is described.
The shielding conductor ground structure of of the present invention a kind of impregnated dry-type transformer coil as shown in Figure 2, comprise metal folder 1, securing member combination, coil shielding conductor 3, insulation T type pad 4 and insulation plain cushion 5, described metal folder 1 is fixedly linked with the securing member combination, and described coil shielding conductor 3 is fixedly connected in the securing member combination; Be provided with insulation T type pad 4 and insulation plain cushion 5 between described securing member combination and the metal folder 1; Also be fixedly connected with user's ground link 6 in the described securing member combination; Described securing member combination comprises screw rod 2 and a plurality of nut 7.
The shielding conductor ground structure of the present invention program's impregnated dry-type transformer coil, by the combination of metal folder 1 and securing member axially between increased insulation T type pad 4 and insulation plain cushion, 5 make the securing member combination separate fully with metal folder 1, improved the reliability of coil shielding conductor ground connection, guaranteed the fail safe when impregnated dry-type transformer uses, and the securing member combination directly links to each other with user's earth connection, has increased the ground connection reliability of coil shielding conductor.
The foregoing description only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the personage that is familiar with this technology can understand content of the present invention and is implemented; can not limit protection scope of the present invention with this; all equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (3)
1. the shielding conductor ground structure of an impregnated dry-type transformer coil, comprise metal folder, securing member combination and coil shielding conductor, described metal folder and securing member combination are fixedly linked, described coil shielding conductor is fixedly connected in the securing member combination, it is characterized in that: also comprise insulation T type pad and insulation plain cushion; Be provided with insulation T type pad and insulation plain cushion between described securing member combination and the metal folder.
2. the shielding conductor ground structure of impregnated dry-type transformer coil according to claim 1 is characterized in that: also be fixedly connected with user's ground link in the described securing member combination.
3. the shielding conductor ground structure of impregnated dry-type transformer coil according to claim 2 is characterized in that: described securing member combination comprises screw rod and a plurality of nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310127962.9A CN103227042B (en) | 2013-04-12 | 2013-04-12 | A kind of shielding line ground structure of impregnated dry-type transformer coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310127962.9A CN103227042B (en) | 2013-04-12 | 2013-04-12 | A kind of shielding line ground structure of impregnated dry-type transformer coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103227042A true CN103227042A (en) | 2013-07-31 |
| CN103227042B CN103227042B (en) | 2017-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310127962.9A Active CN103227042B (en) | 2013-04-12 | 2013-04-12 | A kind of shielding line ground structure of impregnated dry-type transformer coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103227042B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116435073A (en) * | 2023-06-12 | 2023-07-14 | 山西济达电气股份有限公司 | Electric shock prevention wet-type transformer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5941813A (en) * | 1982-08-31 | 1984-03-08 | Hitachi Ltd | Surface shield type molded transformer |
| CN201122498Y (en) * | 2007-10-08 | 2008-09-24 | 特变电工衡阳变压器有限公司 | Novel iron core strap locking device |
| CN102054570A (en) * | 2010-11-19 | 2011-05-11 | 济南济变志亨电力设备有限公司 | Double-split dry type voltage booster transformer for photovoltaic power generation |
| CN202145416U (en) * | 2011-08-05 | 2012-02-15 | 浙江电力变压器有限公司 | Magnetic shield mounting structure for transformer |
| CN102623151A (en) * | 2011-01-30 | 2012-08-01 | 张家港市沙洲特种变压器制造有限公司 | Stable compressed structure for reducing partial electrical discharge of dry type transformer |
| CN203205226U (en) * | 2013-04-12 | 2013-09-18 | 苏州腾冉电气设备有限公司 | Shielded wire ground structure for impregnated dry type transformer coil |
-
2013
- 2013-04-12 CN CN201310127962.9A patent/CN103227042B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5941813A (en) * | 1982-08-31 | 1984-03-08 | Hitachi Ltd | Surface shield type molded transformer |
| CN201122498Y (en) * | 2007-10-08 | 2008-09-24 | 特变电工衡阳变压器有限公司 | Novel iron core strap locking device |
| CN102054570A (en) * | 2010-11-19 | 2011-05-11 | 济南济变志亨电力设备有限公司 | Double-split dry type voltage booster transformer for photovoltaic power generation |
| CN102623151A (en) * | 2011-01-30 | 2012-08-01 | 张家港市沙洲特种变压器制造有限公司 | Stable compressed structure for reducing partial electrical discharge of dry type transformer |
| CN202145416U (en) * | 2011-08-05 | 2012-02-15 | 浙江电力变压器有限公司 | Magnetic shield mounting structure for transformer |
| CN203205226U (en) * | 2013-04-12 | 2013-09-18 | 苏州腾冉电气设备有限公司 | Shielded wire ground structure for impregnated dry type transformer coil |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116435073A (en) * | 2023-06-12 | 2023-07-14 | 山西济达电气股份有限公司 | Electric shock prevention wet-type transformer |
| CN116435073B (en) * | 2023-06-12 | 2023-09-08 | 山西济达电气股份有限公司 | Electric shock prevention wet-type transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103227042B (en) | 2017-12-22 |
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