CN103745812A - Resin-insulated dry-type traction rectifier transformer with transverse and longitudinal air passages - Google Patents
Resin-insulated dry-type traction rectifier transformer with transverse and longitudinal air passages Download PDFInfo
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- CN103745812A CN103745812A CN201310755541.0A CN201310755541A CN103745812A CN 103745812 A CN103745812 A CN 103745812A CN 201310755541 A CN201310755541 A CN 201310755541A CN 103745812 A CN103745812 A CN 103745812A
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Abstract
The invention discloses a resin-insulated dry-type traction rectifier transformer with transverse and longitudinal air passages, and relates to a traction rectifier transformer. A grid side coil of an existing resin-insulated dry-type traction rectifier transformer is generally of an integrated structure and is not easily fully cast in the casting process. The resin-insulated dry-type traction rectifier transformer is characterized in that the grid side coil is provided with a plurality of longitudinal air passages, the longitudinal air passages are uniformly distributed along the periphery of the grid side coil, the transverse air passages are arranged at different positions of the height of the grid side coil, the grid side coil is divided into a plurality of independent coil units by the transverse air passages, each coil unit is individually wound and cast, and the coil units are isolated through spacers and electrically connected through conductive connecting pieces to form the integrated coil. The resin-insulated dry-type traction rectifier transformer comprises a plurality of individually cast unit coils which are easily manufactured and fully cast, and inherent quality is improved.
Description
Technical field
The present invention relates to a kind of traction rectifier transformer.
Background technology
In the technology of existing resin-insulated dry traction rectifier transformer, net lateral coil generally adopts integral structure, but due to the net lateral coil of resin-insulated dry traction rectifier transformer, especially the net lateral coil size of the resin-insulated dry traction rectifier transformer of 35KV and above high voltage large capcity is larger, adopt integral structure, in the process of cast, be not easy to pour into a mould penetrating, cause the index of partial discharge not reach requirement, directly affect the quality that coil is manufactured, often cause scrapping of coil.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is that prior art scheme is improved and improved, and provides a kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue, to reach the object that improves coil rate of finished products.For this reason, the present invention takes following technical scheme.
A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue, comprise base, iron core, coil, coil is enclosed within outward on iron core, described coil comprises net lateral coil, valve lateral coil, it is characterized in that: described net lateral coil is provided with multiple vertical longitudinal gas channels, multiple longitudinal gas channels are along net lateral coil circumference uniform distribution; Net lateral coil is provided with horizontal transverse air channel at the diverse location of its height, transverse air channel is divided into multiple independently coil units by net lateral coil, the independent coiling of each coil unit, cast separately, between coil unit, by cushion block, isolate, and be electrically connected by conductive connecting piece, become complete coil.Net lateral coil by several separately unit coils of cast form, the unit coil of cast is easy to manufacture separately, is conducive to pour into a mould penetrating, inherent quality improves.Due to the existence of longitudinal gas channel and transverse air channel, air flows in longitudinal gas channel and transverse air channel, is conducive to transformer heat radiation, and hot-air is from upper discharge, and cold air supplements and carries out from bottom, accelerates heat radiation, guarantees the job stability of transformer.
As the further of technique scheme improved and supplemented, the present invention also comprises following additional technical feature.
Net lateral coil has upper and lower two branch roads, and each route main winding and phase shift winding form, and main winding is in end, and phase shift winding is at middle part, and main winding and phase shift winding have independently tapping device separately.
Described net lateral coil is provided with four coil units, be respectively the First Line coil unit, the second coil unit, tertiary coil unit and the 4th coil unit that stack successively up and down, between two adjacent lines coil units, be equipped with transverse air channel and form three transverse air channels, three transverse air channels are respectively transverse air channel, middle transverse air channel and lower transverse air channel.
Described upper transverse air channel, lower transverse air channel lay respectively at the tap place of branch road main winding and the tap place of lower branch road main winding; Described middle transverse air channel is positioned at the centre position of coil height.
Between First Line coil unit and the second coil unit, between tertiary coil unit and the 4th coil unit by the outlet of the corresponding linkage unit coil of main winding tap brace; The outlet of the unit coil of transverse air channel both sides in connecting by branch road tap brace is corresponding between the second coil unit and tertiary coil unit.
Described longitudinal gas channel cross section is oval, and it comprises the arc-shaped edges that is positioned at two ends and the dual-side that connects two arc-shaped edges.
The tap terminals of main winding is divided on two coil units, and the tap terminals that is positioned at the main winding of a coil unit is arranged side by side.
The tap terminals of phase shift winding is located on a coil unit.
The upper main winding that described First Line coil unit comprises branch road; The upper and lower phase shift winding of the lower main winding that the second described coil unit comprises branch road and upper branch road; The upper and lower phase shift winding that described tertiary coil unit comprises lower branch road and the upper main winding of lower branch road; The lower main winding that the 4th described coil unit comprises lower branch road; Being electrically connected by main winding tap brace between main winding up and down on same branch road; Between upper and lower phase shift winding, by phase shift winding tap brace, connect.
Described main winding tap brace, phase shift winding tap brace are located at transformer one side, and branch road tap brace is located at transformer opposite side.Main winding tap brace, phase shift winding tap brace and branch road tap brace are divided into transformer both sides, and winding, from both sides outlet, contributes to improve the insulating properties of transformer.
Beneficial effect: 1, after coil is divided into some sub-windings, because every sub-winding volume is little, so Resin permeability during cast is good, realized zero partial discharge of coil itself, quality is fully guaranteed, overcome the penetrating not drawback of coil cast of integral form in the past, guaranteed the qualification rate that coil is manufactured.2, between unit winding, with cross-over block, separate, the gap of formation is also the transverse air channel of coil, has improved heat-sinking capability, has improved transformer operational reliability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the tap at the upper and lower transverse air channel of the present invention place connects copper coin schematic diagram;
Fig. 3 is coil windings of the present invention and tapping structure schematic diagram;
Fig. 4 is the structural representation of coil windings longitudinal gas channel of the present invention.
In figure: 1-iron core; 2-coil; 201-First Line coil unit; 202-the second coil unit; 203-tertiary coil unit; 204-the 4th coil unit; 3-main winding tap brace; 4-phase shift winding tap brace; 5-branch road tap brace; Transverse air channel under 6-; Transverse air channel in 7-; The upper transverse air channel of 8-; 9-support; 10-main winding; 11-phase shift winding; 12-longitudinal gas channel; 13-cushion block.
Embodiment
Below in conjunction with Figure of description, technical scheme of the present invention is described in further detail.
As shown in Figure 1,2,3, 4, the present invention includes base 9, iron core 1, coil 2, coil 2 is outer to be enclosed within on unshakable in one's determination 1, and wherein net lateral coil 2 is provided with multiple vertical longitudinal gas channels 12, and multiple longitudinal gas channels 12 are along net lateral coil 2 circumference uniform distributions; Net lateral coil 2 is provided with horizontal transverse air channel at the diverse location of its height, transverse air channel is divided into multiple independently coil units by net lateral coil 2, the independent coiling of each coil unit, cast separately, between coil unit, by cushion block 13, isolate, and be electrically connected by conductive connecting piece, become complete coil 2.Wherein net lateral coil 2 has upper and lower two branch roads, and each route main winding 10 and phase shift winding 11 form, and main winding 10 is in end, and phase shift winding 11 is at middle part, and main winding 10 and phase shift winding 11 have independently tapping device separately.Net lateral coil 2 is provided with four coil units, be respectively the First Line coil unit 201, the second coil unit 202, tertiary coil unit 203 and the 4th coil unit 204 that stack successively up and down, between two adjacent lines coil units, be equipped with transverse air channel and form three transverse air channels, three transverse air channels are respectively transverse air channel 8, middle transverse air channel 7 and lower transverse air channel 6.Upper transverse air channel 8, lower transverse air channel 6 lay respectively at the tap place of branch road main winding 10 and the tap place of lower branch road main winding 10; Middle transverse air channel 7 is positioned at the centre position of coil 2 height.Between First Line coil unit 201 and the second coil unit 202, between tertiary coil unit 203 and the 4th coil unit 204 by the outlet of the corresponding linkage unit coil 2 of main winding 10 tap brace 3; The outlet of the unit coil 2 of transverse air channel 7 both sides in connecting by branch road tap brace 5 is corresponding between the second coil unit 202 and tertiary coil unit 203.Longitudinal gas channel 12 cross sections are rounded, oval or trapezoidal, and longitudinal gas channel 12 cross sections are oval in the present embodiment, and it comprises the arc-shaped edges that is positioned at two ends and the dual-side that connects two arc-shaped edges.
The upper main winding 10 that First Line coil unit 201 comprises branch road; The upper and lower phase shift winding 11 of the lower main winding 10 that the second coil unit 202 comprises branch road and upper branch road; The upper and lower phase shift winding 11 that tertiary coil unit 203 comprises lower branch road and the upper main winding 10 of lower branch road; The lower main winding 10 that the 4th coil unit 204 comprises lower branch road; Between main winding up and down 10 on same branch road, by main winding 10 tap braces 3, be electrically connected; Between upper and lower phase shift winding 11, by phase shift winding 11 tap braces 4, connect.The tap terminals of main winding 10 is divided on two coil units, and the tap terminals that is positioned at the main winding 10 of a coil unit is arranged side by side.The tap terminals of phase shift winding 11 is located on a coil unit.Described main winding tap brace 3, phase shift winding tap brace 4 are located at transformer one side, and branch road tap brace 5 is located at transformer opposite side.
In 2 assemblings of net lateral coil, between adjacent two unit coils 201 and 202,202 and 203,201 and 202, there is transverse air channel, the size of transverse air channel depends on the thickness of air flue cushion block 13.The technical program is cut apart, is adopted copper coin brace to be electrically connected traditional integral net lateral coil 2 use transverse air channels to have realized breaking the whole up into parts that coil 2 is manufactured, guaranteed workmanship, improved coil 2 heat-sinking capabilities.In addition,, because coil 2 has better heat-sinking capability, make the rainy humid area in south also have obvious coil 2 self to go condensation effect.
A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue shown in above Fig. 1-4 is specific embodiments of the invention; substantive distinguishing features of the present invention and progress have been embodied; can be according to actual use needs; under enlightenment of the present invention; it is carried out to the equivalent modifications of the aspects such as shape, structure, all at the row of the protection range of this programme.
Claims (10)
1. the resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue, comprise base (9), (1), coil (2) unshakable in one's determination, coil (2) is outer to be enclosed within on iron core (1), described coil (2) comprises net lateral coil (2), valve lateral coil (2), it is characterized in that: described net lateral coil (2) is provided with multiple vertical longitudinal gas channels (12), multiple longitudinal gas channels (12) are along net lateral coil (2) circumference uniform distribution; Net lateral coil (2) is provided with horizontal transverse air channel at the diverse location of its height, transverse air channel is divided into multiple independently coil units by net lateral coil (2), the independent coiling of each coil unit, cast separately, between coil unit, by cushion block (13), isolate, and be electrically connected by conductive connecting piece, become complete coil (2).
2. a kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue according to claim 1, it is characterized in that: net lateral coil (2) has upper and lower two branch roads, each route main winding (10) and phase shift winding (11) form, main winding (10) is in end, phase shift winding (11) is at middle part, and main winding (10) and phase shift winding (11) have independently tapping device separately.
3. a kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue according to claim 2, it is characterized in that: described net lateral coil (2) is provided with four coil units, be respectively the First Line coil unit (201), the second coil unit (202), tertiary coil unit (203) and the 4th coil unit (204) that stack successively up and down, between two adjacent lines coil units, be equipped with transverse air channel and form three transverse air channels, three transverse air channels are respectively transverse air channel (8), middle transverse air channel (7) and lower transverse air channel (6).
4. a kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue according to claim 3, is characterized in that: described upper transverse air channel (8), lower transverse air channel (6) lay respectively at the tap place of branch road main winding (10) and the tap place of lower branch road main winding (10); Described middle transverse air channel (7) is positioned at the centre position of coil (2) height.
5. a kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue according to claim 4, is characterized in that: between First Line coil unit (201) and the second coil unit (202), between tertiary coil unit (203) and the 4th coil unit (204) by the outlet of the corresponding linkage unit coil of main winding (10) tap brace (3) (2); The outlet of the unit coil (2) of transverse air channel (7) both sides in connecting by branch road tap brace (5) is corresponding between the second coil unit (202) and tertiary coil unit (203).
6. a kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue according to claim 5, is characterized in that: described longitudinal gas channel (12) cross section is rectangular copper coin, and it comprises the arc-shaped edges that is positioned at two ends and the dual-side that connects two arc-shaped edges.
7. a kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue according to claim 6, it is characterized in that: the tap terminals of a main winding (10) is divided on two coil units, the tap terminals that is positioned at the main winding (10) of a coil unit is arranged side by side.
8. a kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue according to claim 7, is characterized in that: the tap terminals of a phase shift winding (11) is located on a coil unit.
9. a kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue according to claim 8, is characterized in that: the upper main winding (10) that described First Line coil unit (201) comprises branch road; The lower main winding (10) that described the second coil unit (202) comprises branch road and the upper and lower phase shift winding (11) of upper branch road; The upper and lower phase shift winding (11) that described tertiary coil unit (203) comprises lower branch road and the upper main winding (10) of lower branch road; The lower main winding (10) that the 4th described coil unit (204) comprises lower branch road; Between main winding up and down (10) on same branch road, by main winding (10) tap brace (3), be electrically connected; Between upper and lower phase shift winding (11), by phase shift winding (11) tap brace (4), connect.
10. a kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue according to claim 9, it is characterized in that: described main winding tap brace (3), phase shift winding tap brace (4) are located at transformer one side, and branch road tap brace (5) is located at transformer opposite side.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310755541.0A CN103745812B (en) | 2013-12-31 | 2013-12-31 | A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue |
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| CN201310755541.0A CN103745812B (en) | 2013-12-31 | 2013-12-31 | A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue |
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| CN103745812A true CN103745812A (en) | 2014-04-23 |
| CN103745812B CN103745812B (en) | 2016-09-28 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024330A (en) * | 2016-07-13 | 2016-10-12 | 上海沪光变压器有限公司 | Multi-coil dry-type traction rectifier transformer |
| CN106373757A (en) * | 2016-11-08 | 2017-02-01 | 江苏宝亨新电气有限公司 | Combined transformer high-voltage coil |
| CN106373758B (en) * | 2016-11-08 | 2018-08-17 | 江苏宝亨新电气有限公司 | A kind of transformer high-voltage coil and the mold for manufacturing the coil |
| CN111326318A (en) * | 2020-02-26 | 2020-06-23 | 广州地铁设计研究院股份有限公司 | Traction rectification dry-type transformer, transformer system and control method thereof |
| CN115101325A (en) * | 2022-07-26 | 2022-09-23 | 南京大全变压器有限公司 | Material mixing device for pouring multi-winding dry type transformer coil |
| CN117612835A (en) * | 2024-01-23 | 2024-02-27 | 悉瑞绿色电气(苏州)有限公司 | High-voltage winding for dry-type transformer and dry-type transformer |
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| CN203631278U (en) * | 2013-12-31 | 2014-06-04 | 卧龙电气集团股份有限公司 | Resin-insulated dry traction rectifying transformer with transverse and longitudinal air channels |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024330A (en) * | 2016-07-13 | 2016-10-12 | 上海沪光变压器有限公司 | Multi-coil dry-type traction rectifier transformer |
| CN106373757A (en) * | 2016-11-08 | 2017-02-01 | 江苏宝亨新电气有限公司 | Combined transformer high-voltage coil |
| CN106373758B (en) * | 2016-11-08 | 2018-08-17 | 江苏宝亨新电气有限公司 | A kind of transformer high-voltage coil and the mold for manufacturing the coil |
| CN111326318A (en) * | 2020-02-26 | 2020-06-23 | 广州地铁设计研究院股份有限公司 | Traction rectification dry-type transformer, transformer system and control method thereof |
| CN115101325A (en) * | 2022-07-26 | 2022-09-23 | 南京大全变压器有限公司 | Material mixing device for pouring multi-winding dry type transformer coil |
| CN115101325B (en) * | 2022-07-26 | 2023-11-03 | 南京大全变压器有限公司 | Mixing device for casting multi-winding dry-type transformer coil |
| CN117612835A (en) * | 2024-01-23 | 2024-02-27 | 悉瑞绿色电气(苏州)有限公司 | High-voltage winding for dry-type transformer and dry-type transformer |
| CN117612835B (en) * | 2024-01-23 | 2024-04-05 | 悉瑞绿色电气(苏州)有限公司 | High-voltage winding for dry-type transformer and dry-type transformer |
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