CN205122386U - Transformer alternately goes between from replacing device - Google Patents
Transformer alternately goes between from replacing device Download PDFInfo
- Publication number
- CN205122386U CN205122386U CN201520992738.0U CN201520992738U CN205122386U CN 205122386 U CN205122386 U CN 205122386U CN 201520992738 U CN201520992738 U CN 201520992738U CN 205122386 U CN205122386 U CN 205122386U
- Authority
- CN
- China
- Prior art keywords
- lead wire
- wire passage
- helical lead
- core body
- wire passageway
- 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.)
- Withdrawn - After Issue
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Abstract
Transformer alternately goes between from replacing device relates to a transformer. Transformer winding leader cable self be difficult to to be finalized the design, can not bend like the copper busbar finalize the design and guarantee between the distance do not change, thereby it causes and discharges and accident such as insulation breakdown easily to take place the displacement when transposition. The utility model discloses a core, set up spiral lead wire passageway in the core wall, spiral lead wire passageway includes first spiral lead wire passageway and second spiral lead wire passageway, the incoming line of first spiral lead wire passageway and second spiral lead wire passageway all is located one of them terminal surface of core, the outlet of first spiral lead wire passageway and second spiral lead wire passageway all is located another terminal surface of core, first spiral lead wire passageway and second spiral lead wire passageway syntropy spiral half cycle in the core wall, the incoming line that makes same spiral lead wire passageway and outlet are in the position exchange of core both ends face. The symmetrical transposition that this technical scheme passes through incoming line and outlet realizes alternately automatic transposition of lead wire.
Description
Technical field
The utility model relates to a kind of transformer.
Background technology
The wire that Transformer Winding outside connects each exit of winding is referred to as to go between, and by lead-in wire by external power source electric energy input transformer, also will the power delivery of coming in be carried to outside by lead-in wire simultaneously.Railway traction transformer, the especially traction transformer of VV connection type, because the connection principle complexity of low-pressure side is various, need lead-in wire to carry out repeatedly crossbar transistion position after winding is drawn, could form a complete loop.No matter be single-phase or the VV connection principle transformer of two monophasic combination one-tenth, all there is this problem.
In order to good controls local discharge level, the low-voltage lead of current oil immersed type traction trans former generally selects the more of leader cable, compared with copper busbar, the advantage of leader cable is that the Electric Field Distribution situation on its surface is more much better than copper busbar, but its inferior position is that leader cable self is not easy sizing, the distance of bent for shaping also between guarantee can not change as copper busbar.Easily be subjected to displacement when coordinated transposition thus cause the accidents such as electric discharge and insulation breakdown.
Utility model content
The technical assignment of the technical problems to be solved in the utility model and proposition carries out improving to prior art and improves, and provides transformer cross-buss self-transposition device, to reach the object that lead-in wire realizes replacing in turnover process.For this reason, the utility model takes following technical scheme.
Transformer cross-buss self-transposition device, comprise core body, helical lead wire passage is offered in described core body wall, described helical lead wire passage comprises the first helical lead wire passage and the second helical lead wire passage, the incoming line of the first helical lead wire passage and the second helical lead wire passage is all positioned at one of them end face of core body, the line outlet of the first helical lead wire passage and the second helical lead wire passage is all positioned at another end face of core body, first helical lead wire passage and the second helical lead wire passage spiral half cycle in the same way in core body wall, make the incoming line of same helical lead wire passage and line outlet at the location swap of core body both ends of the surface.Lead-in wire intersection automatic position-changing is realized by the symmetrical chiasma transposition of incoming line and line outlet.
As improving further and supplementing technique scheme, the utility model also comprises following additional technical feature.
Be axially arranged with the cylindrical hole run through in the middle of described core body, in the cylindrical hole run through in the middle of described core body, be provided with " Ⅹ " type keel shoe.Through hole in the middle of core body is convenient to insulating oil oil flow heat dissipation; Adopt " Ⅹ " type keel shoe to support, can allow core body inside formed multiple oil and paper web form the insulation barrier of large oil duct ground paper cylinder, fully ensure that the insulation property between cross-buss.
First helical lead wire passage and the first helical lead wire passage along core body axially in the equidistant synchronous rotary of helical form in the same way, and between distance remain constant.The coordinated transposition of beeline can be realized by the mode of the equidistant synchronous rotary of helical form in the same way.
Core body is provided with the small through hole of multiple radial direction, and described small through hole communicates with helical lead wire passage.Facilitate insulating oil to enter lead channels, have electric current by adstante febre at lead-in wire, take away heat by oily stream, play the effect of heat radiation.
The diameter of described small through hole is more than or equal to the diameter of helical lead wire passage.Insulating oil is facilitated to enter lead channels,
Described core body end face incoming line and the position of line outlet are provided with the gap being greater than helical lead wire passage.Bare wire, in extraction with when entering lead channels, needs the insulating barrier of bag respective thickness, when gateway place taper, can prevent because root is too large and the problem of core body wall interference.
The inner side of the both ends of the surface of described core body is provided with the annular separation higher than end face.After helping bare wire to draw from lead channels, avoiding, because going between bending, the problem that insulation distance reduces occurs, plaing a part to isolate.
The quantity of the small through hole communicated with the first helical lead wire passage, the first helical lead wire passage is 3.3 quantity are relatively few, reduce aperture processing cost.
Beneficial effect: by the special transposition passage of inside, make lead-in wire enter with the process gone out in just achieve transposition, not only avoid the lead-in wire clamping device of practical very complicated, effectively can also prevent the electric discharge between going between simultaneously, better ensure that the safe and stable operation of transformer.
Accompanying drawing explanation
Fig. 1 is the assembling schematic diagram of the utility model in transformer.
Fig. 2 is the utility model side perspective structure schematic diagram.
Fig. 3 is the utility model plan structure schematic diagram.
In figure: 1-core body; 2-helical lead wire passage; 3-" Ⅹ " type keel shoe; 4-gap; 5-annular separation; 6-small through hole; 7-goes between; 8-wire clamp.
Embodiment
Below in conjunction with Figure of description, the technical solution of the utility model is described in further detail.
As shown in Figure 1, the utility model comprises core body 1, helical lead wire passage 2 is offered in core body 1 wall, helical lead wire passage 2 comprises the first helical lead wire passage 21 and the second helical lead wire passage 22, the incoming line of the first helical lead wire passage 21 and the second helical lead wire passage 22 is all positioned at one of them end face of core body 1, the line outlet of the first helical lead wire passage 21 and the second helical lead wire passage 22 is all positioned at another end face of core body 1, first helical lead wire passage 21 and the second helical lead wire passage 22 spiral half cycle in the same way in core body 1 wall, make the incoming line of same helical lead wire passage and line outlet at the location swap of core body 1 both ends of the surface.
Realization lead-in wire intersection automatic position-changing conveniently, and be convenient to heat radiation, prevent the electric discharge between going between, the safe and stable operation of better guarantee transformer, the cylindrical hole run through is axially arranged with in the middle of core body 1, " Ⅹ " type keel shoe 3 is provided with in the cylindrical hole run through in the middle of core body 1, article two, the incoming line of helical lead wire passage 2 is positioned at one of them end face of core body 1, article two, the line outlet of helical lead wire passage 2 is positioned at another end face of core body 1, helical lead wire passage 2 along core body 1 axially in the equidistant synchronous rotary of helical form in the same way, between distance remain constant, article two, helical lead wire passage incoming line and line outlet transposition, the side direction of every bar helical lead wire passage 2 is evenly distributed with 3 small through hole 6 on two passes center line, small through hole 6 is perpendicular to core body 1 side, the diameter of small through hole 6 is equal with the diameter of two helical lead wire passages 2, the position of core body 1 end face incoming line and line outlet is provided with the gap 4 being greater than helical lead wire passage 2, the inner side of the both ends of the surface of core body 1 is provided with the annular separation 5 higher than end face.
At the product design initial stage, according to electric pressure and the capacity of transformer, by determining the specification of leader cable 7 after calculating, then determine that helical lead wire passage 2 diameter can ensure that leader cable 7 can pass through; According to transformer voltage grade, determine the insulation distance between leader cable 7, finally determine the arc length distance of helical lead wire passage 2, guarantee that insulation distance can meet test requirements document, by transformer arrangement figure, calculate the space length of helical lead wire passage 2 coordinated transposition place, then core body 1 length of reasonable selection cross-buss self-transposition device and the peripheral end face height dimension of core body 1.
In assembling process, two leader cables 7 are each passed through helical lead wire passage 2, then naturally draw along helical lead wire passage 2, the now transposition of two leader cables 7 completes in inside.
According to transformer voltage grade and insulation distance, determine the wire insulation thickness beyond cross-buss self-transposition device, in the import and export position of leader cable 7, control the length of taper well, two leader cables 7 are clamped finally by the wire clamp 8 being distributed in cross-buss self-transposition device both sides, and make leader cable 7 be in full extension state, thus make cross-buss self-transposition device also be in the fixing state of a relative horizontal position.
After cross-buss self-transposition device installs, guaranteeing that cylindrical hole passage is run through in core body 1 centre at " Ⅹ " type keel shoe 3 place is without blocked state, guarantee insulating oil can be allowed to flow freely in each small through hole 6, take away in time to ensure that the heat of leader cable 7 is flowed by oil.
Transformer cross-buss self-transposition device shown in above Fig. 1-3 is specific embodiment of the utility model; the utility model substantive distinguishing features and progress are embodied; can according to the use needs of reality; under enlightenment of the present utility model; it is carried out to the equivalent modifications of the aspect such as shape, structure, all at the row of the protection range of this programme.
Claims (8)
1. transformer cross-buss self-transposition device, it is characterized in that: comprise core body (1), helical lead wire passage (2) is offered in described core body (1) wall, described helical lead wire passage (2) comprises the first helical lead wire passage (21) and the second helical lead wire passage (22), the incoming line of the first helical lead wire passage (21) and the second helical lead wire passage (22) is all positioned at one of them end face of core body (1), the line outlet of the first helical lead wire passage (21) and the second helical lead wire passage (22) is all positioned at another end face of core body (1), first helical lead wire passage (21) and the second helical lead wire passage (22) spiral half cycle in the same way in core body (1) wall, make the incoming line of same helical lead wire passage and line outlet at the location swap of core body (1) both ends of the surface.
2. transformer cross-buss self-transposition device according to claim 1, is characterized in that: be axially arranged with the cylindrical hole run through in the middle of described core body (1), is provided with " Ⅹ " type keel shoe (3) in the cylindrical hole run through in the middle of described core body (1).
3. transformer cross-buss self-transposition device according to claim 1, it is characterized in that: the first helical lead wire passage (21) and the first helical lead wire passage (22) along core body (1) axially in the equidistant synchronous rotary of helical form in the same way, and between distance remain constant.
4. transformer cross-buss self-transposition device according to claim 1, is characterized in that: core body is provided with the small through hole (6) of multiple radial direction, and described small through hole communicates with helical lead wire passage (2).
5. transformer cross-buss self-transposition device according to claim 4, is characterized in that: the diameter of described small through hole (6) is more than or equal to the diameter of helical lead wire passage (2).
6. transformer cross-buss self-transposition device according to claim 1, is characterized in that: described core body (1) end face incoming line and the position of line outlet are provided with the gap (4) being greater than helical lead wire passage (2).
7. transformer cross-buss self-transposition device according to claim 1, is characterized in that: the inner side of the both ends of the surface of described core body (1) is provided with the annular separation (5) higher than end face.
8. transformer cross-buss self-transposition device according to claim 4, is characterized in that: the quantity of the small through hole (6) communicated with the first helical lead wire passage (21), the first helical lead wire passage (22) is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520992738.0U CN205122386U (en) | 2015-12-04 | 2015-12-04 | Transformer alternately goes between from replacing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520992738.0U CN205122386U (en) | 2015-12-04 | 2015-12-04 | Transformer alternately goes between from replacing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205122386U true CN205122386U (en) | 2016-03-30 |
Family
ID=55577972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520992738.0U Withdrawn - After Issue CN205122386U (en) | 2015-12-04 | 2015-12-04 | Transformer alternately goes between from replacing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205122386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355418A (en) * | 2015-12-04 | 2016-02-24 | 卧龙电气集团股份有限公司 | Automatic position changing device for transformer cross leads |
-
2015
- 2015-12-04 CN CN201520992738.0U patent/CN205122386U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355418A (en) * | 2015-12-04 | 2016-02-24 | 卧龙电气集团股份有限公司 | Automatic position changing device for transformer cross leads |
| CN105355418B (en) * | 2015-12-04 | 2017-08-15 | 卧龙电气集团股份有限公司 | Transformer cross-buss self-transposition device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160330 Effective date of abandoning: 20170815 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160330 Effective date of abandoning: 20170815 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |