CN103227039B - A kind of extra-high voltage transformer outgoing line device - Google Patents
A kind of extra-high voltage transformer outgoing line device Download PDFInfo
- Publication number
- CN103227039B CN103227039B CN201310181417.8A CN201310181417A CN103227039B CN 103227039 B CN103227039 B CN 103227039B CN 201310181417 A CN201310181417 A CN 201310181417A CN 103227039 B CN103227039 B CN 103227039B
- Authority
- CN
- China
- Prior art keywords
- shielded
- plate tube
- lead
- wire
- secondary shielding
- 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.)
- Active
Links
Abstract
The invention belongs to technical field of transformer manufacturing, be specifically related to a kind of extra-high voltage transformer outgoing line device. The present invention arranges two vertical shielded-plate tubes, and lead-in wire is penetrated from shielded-plate tube two ends, to lead-in wire shielding completely, realizes shielding without dead angle. Meanwhile, at lead-in wire, place installs voltage equalizing ball additional, and electric field is around become evenly, increases safety coefficient. Shielded-plate tube and voltage equalizing ball are provided with insulating barrier outward, and the first shielded-plate tube and secondary shielding pipe junction are also provided with multilayer insulation cardboard at the first shielded-plate tube near a side of coil; Two lead-in wire binding post outsides are provided with shielding paper web. This outlet can effectively solve and cause electric field to be concentrated and the problem such as lead-in wire and folder, Oiltank structure part near distance because electric pressure is high, improves well the electric field around lead distribution of extra-high voltage product, has improved the insulating properties of product.
Description
Technical field
The invention belongs to technical field of transformer manufacturing, be specifically related to a kind of extra-high voltage transformer outgoing line device.
Background technology
Electric field is affected by the factor such as electric pressure, electrode shape and is different distributions. In transformer, the electric pressure difference of different windings, thus between winding and sleeve pipe, the electric pressure of connecting lead wire is also different. Due to shape, the specification difference of lead-in wire, cause transformer lead electric field to be different distributions, the dielectric strength of impact lead-in wire, and then affect properties of product. For guaranteeing reliable in structure, in lead design, outside the lead-in wire of being everlasting, increase shielding construction, improve electric field around lead to reach, increase the object of margin of safety.
For example: in extra-high voltage, high-capacity auto-transformer design process, because high-pressure series coil head end is middle part outlet, head end electric pressure is 1000 kilovolts, and both ends are series coil end, and two ends need to draw after parallel connection, and electric pressure is 500 kilovolts. Meanwhile, intermediate voltage winding is taked inverted structure, and middle pressure head end electric pressure is also 500 kilovolts. Due to this transformer device structure pattern, determine that high-tension coil first and last end and middle pressure head end need to be connected with sleeve pipe together, the shunt leads of such 500 kilovolts of grades must be through high-tension coil middle part, due to transportation clearance restriction, fuel tank size can not be too large, so just caused 500 kilovolts of connect in parallel with upside and downside lead-in wires to concentrate apart from nervous, electric field the structural member such as high-tension coil, fuel tank, this is also a difficult point of extra-high voltage, the design of high-capacity auto-transformer. Therefore, in the urgent need to designing a kind of transformer outgoing line device, well improve the electric field of transformer connect in parallel with upside and downside lead-in wire, solve high voltage, the great current lead wire Layout Problem of tight space.
Summary of the invention
For the problems referred to above, the invention provides a kind of extra-high voltage transformer outgoing line device, effectively improve the electric field of high-tension coil connect in parallel with upside and downside lead-in wire.
Extra-high voltage transformer outgoing line device provided by the present invention, comprise the first shielded-plate tube, secondary shielding pipe and voltage equalizing ball, the first shielded-plate tube be positioned at transformer coil one side, with coil axes to be arrangeding in parallel, secondary shielding pipe is L shaped pipe, secondary shielding pipe one end is fixedly connected with and communicates with the first shielded-plate tube with the first shielded-plate tube middle part, and the other end is fixedly connected with voltage equalizing ball; Coil is upper and lower lifts one's head respectively by binding post connecting lead wire, and upper and lower lead-in wire penetrates from the first shielded-plate tube two ends,, is connected by outlet terminal with sleeve pipe afterbody from parallel passing in voltage equalizing ball through secondary shielding pipe; The first shielded-plate tube, secondary shielding pipe and voltage equalizing ball are provided with insulating barrier outward, and the first shielded-plate tube and secondary shielding pipe junction are also provided with multilayer insulation cardboard at the first shielded-plate tube near a side of coil; Two lead-in wire binding post outsides are provided with shielding paper web. Coil goes between up and down and inserts from the two ends of the first shielded-plate tube, first lead-in wire is shielded respectively, after the parallel connection that then goes between, is shielded by secondary shielding pipe again, to lead-in wire shielding completely, can avoid shielding dead angle, shield after comparing traditional lead-in wire parallel connection again, shield effectiveness is better. Shielded-plate tube and voltage equalizing ball are equipped with insulating barrier outward, complete insulating properties. In addition, because the first shielded-plate tube and secondary shielding pipe junction are field intensity concentration zones, be provided with multilayer insulation cardboard at the first shielded-plate tube near a side of coil, for reinforced insulation. Binding post is also provided with shielding paper web outward, and pair of wire connection terminals shields, and further improves shield effectiveness.
Insulating barrier outside the first shielded-plate tube and secondary shielding pipe is insulation paper pulp and individual layer insulating paper cylinder, and the insulating barrier outside voltage equalizing ball is individual layer insulating paper cylinder. Utilize insulating paper cylinder that the oil duct of the first shielded-plate tube, secondary shielding pipe, voltage equalizing ball is divided into small oil gap. For meeting higher insulating requirements, also can adopt multilayer insulation paper web, now, need between insulation paper pulp and insulating paper cylinder, insulating stay be set, utilize insulating stay stretching insulating paper cylinder, counter structure is: the insulating barrier outside the first shielded-plate tube and secondary shielding pipe is respectively insulation paper pulp, insulating stay, multilayer insulation paper web from inside to outside, and the insulating barrier outside voltage equalizing ball is insulating stay and multilayer insulation paper web.
Preferably, the material of the first shielded-plate tube, secondary shielding pipe and voltage equalizing ball is copper.
The present invention arranges two vertical shielded-plate tubes, and lead-in wire is penetrated from shielded-plate tube two ends, to lead-in wire shielding completely, realizes shielding without dead angle. Meanwhile, at lead-in wire, place installs voltage equalizing ball additional, and electric field is around become evenly, increases safety coefficient. This outlet can effectively solve and cause electric field to be concentrated and the problem such as lead-in wire and folder, Oiltank structure part near distance because electric pressure is high, improves well the electric field around lead distribution of extra-high voltage product, has improved the insulating properties of product. Lead-in wire of the present invention connects together with device electrode, without drawing separately equipotential line, simple in structure, goes between easy to assembly easy to operate.
Brief description of the drawings
Fig. 1 is the embodiment of the present invention 1 structural representation;
Fig. 2 is the embodiment of the present invention 2 structural representations;
In figure, 1, coil, 2, sleeve pipe, 3, voltage equalizing ball, 4, outlet terminal, 5, fixed head, 6, secondary shielding pipe, 7, insulation paper pulp, 8, insulating stay, 9, multilayer insulation paper web, 10, lead-in wire upper connecting terminal, 11, multilayer insulation cardboard, 12, the first shielded-plate tube, 13, lead-in wire lower connecting terminal, 14, shielding paper web, 15, individual layer insulating paper cylinder.
Detailed description of the invention
Embodiment 1
A kind of extra-high voltage transformer outgoing line device, comprise the first shielded-plate tube 12, secondary shielding pipe 6 and voltage equalizing ball 3, three is all made of copper, the first shielded-plate tube 12 be positioned at transformer coil 1 one sides, with coil axes to be arrangeding in parallel, secondary shielding pipe 6 is L shaped pipe, secondary shielding pipe 6 one end are welded and communicate with the first shielded-plate tube 12 with the first shielded-plate tube 12 middle parts, and the other end and voltage equalizing ball 3 weld. Upper and lower lifting one's head of coil is connected upper and lower lead-in wire by lead-in wire upper connecting terminal 10 with lead-in wire lower connecting terminal 13 respectively, upper and lower lead-in wire penetrates from the first shielded-plate tube 12 two ends, pass from interior the walking abreast of voltage equalizing ball 3 through secondary shielding pipe 6, in voltage equalizing ball 3, be provided with outlet terminal 4, outlet terminal 4 is bolted on the fixed head 5 of voltage equalizing ball 3, and lead-in wire is connected with sleeve pipe 2 afterbodys by outlet terminal 4. The outer insulating barrier that is provided with of the first shielded-plate tube 12, secondary shielding pipe 6 and voltage equalizing ball 3, the insulating barrier outside the first shielded-plate tube 12 and secondary shielding pipe 6 is insulation paper pulp 7 and individual layer insulating paper cylinder 15, the insulating barrier outside voltage equalizing ball 3 is individual layer insulating paper cylinder 15. The first shielded-plate tube 12 is also provided with multilayer insulation cardboard 11 at the first shielded-plate tube near a side of coil with secondary shielding pipe 6 junctions, and lead-in wire upper connecting terminal 10 and lead-in wire lower connecting terminal 13 outsides are provided with shielding paper web 14.
Embodiment 2
The difference of the present embodiment and embodiment 1 is that the insulating barrier outside the first shielded-plate tube 12 and secondary shielding pipe 6 is respectively insulation paper pulp 7, insulating stay 8, multilayer insulation paper web 9 from inside to outside, and the insulating barrier outside voltage equalizing ball 3 is insulating stay 8 and multilayer insulation paper web 9. Other structures are identical, do not repeat them here.
Connected electrical network for the lead-in wire of transformer is drawn out to outside, sleeve pipe is inserted in voltage equalizing ball, and lead-in wire is positioned on the fixed head that a section of voltage equalizing ball is connected to sleeve pipe, be drawn out to outside and connect external electrical network by sleeve pipe. Voltage equalizing ball shields wire tail, improves electric field.
Claims (4)
1. an extra-high voltage transformer outgoing line device, it is characterized in that: comprise the first shielded-plate tube (12), secondary shielding pipe (6) and voltage equalizing ball (3), the first shielded-plate tube (12) be positioned at transformer coil (1) one side, with coil axes to be arrangeding in parallel, secondary shielding pipe (6) is L shaped pipe, secondary shielding pipe (6) one end is fixedly connected with and communicates with the first shielded-plate tube with the first shielded-plate tube (12) middle part, and the other end is fixedly connected with voltage equalizing ball (3); Coil is upper and lower lifts one's head respectively by binding post connecting lead wire, and upper and lower lead-in wire penetrates from the first shielded-plate tube (12) two ends, passes from walking abreast in voltage equalizing ball (3) through secondary shielding pipe (6), is connected with sleeve pipe (2) afterbody by outlet terminal (4); The first shielded-plate tube (12), secondary shielding pipe (6) and voltage equalizing ball (3) are outer is provided with insulating barrier, and the first shielded-plate tube (12) is also provided with multilayer insulation cardboard (11) at the first shielded-plate tube near a side of coil with secondary shielding pipe (6) junction; Two lead-in wire binding post outsides are provided with shielding paper web (14).
2. extra-high voltage transformer outgoing line device according to claim 1, it is characterized in that: the outer insulating barrier of the first shielded-plate tube (12) and secondary shielding pipe (6) is insulation paper pulp (7) and individual layer insulating paper cylinder (15), and the outer insulating barrier of voltage equalizing ball (3) is individual layer insulating paper cylinder (15).
3. extra-high voltage transformer outgoing line device according to claim 1, it is characterized in that: the outer insulating barrier of the first shielded-plate tube (12) and secondary shielding pipe (6) is respectively insulation paper pulp (7), insulating stay (8), multilayer insulation paper web (9) from inside to outside, and the outer insulating barrier of voltage equalizing ball (3) is insulating stay (8) and multilayer insulation paper web (9).
4. according to the extra-high voltage transformer outgoing line device described in claim 1 or 2 or 3, it is characterized in that: the material of the first shielded-plate tube (12), secondary shielding pipe (6) and voltage equalizing ball (3) is copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310181417.8A CN103227039B (en) | 2013-05-16 | 2013-05-16 | A kind of extra-high voltage transformer outgoing line device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310181417.8A CN103227039B (en) | 2013-05-16 | 2013-05-16 | A kind of extra-high voltage transformer outgoing line device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103227039A CN103227039A (en) | 2013-07-31 |
| CN103227039B true CN103227039B (en) | 2016-05-04 |
Family
ID=48837449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310181417.8A Active CN103227039B (en) | 2013-05-16 | 2013-05-16 | A kind of extra-high voltage transformer outgoing line device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103227039B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021254639A1 (en) * | 2020-06-19 | 2021-12-23 | Hitachi Energy Switzerland Ag | Bushing connection shielding system and use of the same in an exit insulating system of a high voltage transformer |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103559987B (en) * | 2013-11-15 | 2016-06-08 | 山东电力设备有限公司 | A kind of extra-high voltage transformer outgoing line device |
| CN104700996B (en) * | 2013-12-09 | 2018-05-15 | 特变电工股份有限公司 | A kind of transformer lead shielding device and super-pressure or extra-high voltage transformer |
| WO2017000545A1 (en) * | 2015-07-01 | 2017-01-05 | 山东电工电气集团有限公司 | High voltage outlet structure of ultra-high voltage shunt reactor |
| CN105609265B (en) * | 2016-03-01 | 2017-11-14 | 泰州新源电工器材有限公司 | A kind of AC transformer outgoing line device |
| CN107689286A (en) * | 2017-07-03 | 2018-02-13 | 卧龙电气集团股份有限公司 | The outlet shielding construction and its installation method of a kind of 500kV high-power transformers high-voltage connection |
| BR112020001296A2 (en) * | 2017-07-31 | 2020-07-28 | General Electric Technology Gmbh | conductor output arrangement for a high voltage transformer / reactor, transformer / reactor, method of assembling a conductor output arrangement for a transformer / reactor and power distribution network |
| CN109817418A (en) * | 2017-11-21 | 2019-05-28 | 特变电工沈阳变压器集团有限公司 | A kind of open type lead shielding cylinder connection structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101656143B (en) * | 2008-08-22 | 2012-05-23 | 特变电工沈阳变压器集团有限公司 | High-voltage terminal device for transformer |
| CN101640114B (en) * | 2009-07-06 | 2011-06-22 | 保定天威保变电气股份有限公司 | Extra-high voltage transformer lead shielding device |
| CN101694807B (en) * | 2009-08-27 | 2011-06-15 | 中国西电电气股份有限公司 | High voltage outgoing line device of extra-high voltage transformer |
| CN202905403U (en) * | 2012-11-15 | 2013-04-24 | 常州市英中电气有限公司 | Outgoing line device on network side of extra-high voltage converter transformer |
| CN203225163U (en) * | 2013-05-16 | 2013-10-02 | 山东电力设备有限公司 | Outgoing line device of extra-high voltage transformer |
-
2013
- 2013-05-16 CN CN201310181417.8A patent/CN103227039B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021254639A1 (en) * | 2020-06-19 | 2021-12-23 | Hitachi Energy Switzerland Ag | Bushing connection shielding system and use of the same in an exit insulating system of a high voltage transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103227039A (en) | 2013-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103227039B (en) | A kind of extra-high voltage transformer outgoing line device | |
| CN101640114B (en) | Extra-high voltage transformer lead shielding device | |
| CN103337348B (en) | A kind of transformer with split winding | |
| CN106546782A (en) | A kind of series parallel resonance reactor array for the test of overlength cable ac voltage withstanding | |
| CN203225163U (en) | Outgoing line device of extra-high voltage transformer | |
| CN203617118U (en) | Oil-immersed inverted current transformer | |
| CN204596595U (en) | A kind of oil-immersed transformer high-voltage coils outlet deriving structure | |
| CN201262883Y (en) | Two-pole parallel connection end 500kV outlet device OF transformer | |
| CN101826391A (en) | Segmented layered structure transformer | |
| CN102315007A (en) | Single-phase ultra-high-capacity nuclear power station transformer | |
| CN207319884U (en) | A kind of high-frequency impulse step-up transformer skeleton and include its transformer | |
| CN201237973Y (en) | Sulfur hexafluoride current mutual inductor with small-diameter casing tube | |
| CN106653321A (en) | Converter transformer lead arrangement structure | |
| CN102592793B (en) | Wire connection structure between high-voltage windings of ultra-high voltage transformer | |
| CN201532843U (en) | Transformer with segmental structure | |
| CN205248085U (en) | Superhigh pressure device of being qualified for next round of competitions | |
| CN209418279U (en) | A wide range of pressure regulation intermediate transformer | |
| CN206003608U (en) | A kind of transformator outgoing line device | |
| CN203746627U (en) | Lower wiring structure of 500 kV sleeve pipe | |
| CN206370331U (en) | A kind of converter power transformer lead arrangement | |
| CN207624513U (en) | A kind of novel traction high-voltage lead of transformer connection structure | |
| CN104700996B (en) | A kind of transformer lead shielding device and super-pressure or extra-high voltage transformer | |
| CN208433305U (en) | A kind of full cast-type three-phase and four-line combination transformer | |
| CN205452013U (en) | Flame -proof type multivoltage unsteady flow is dry -type transformer and mobile substation for mobile substation | |
| CN205900250U (en) | Axial formula transformer of being qualified for next round of competitions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |