CN202871526U - Dry type traction rectifier transformer for urban rail transit - Google Patents
Dry type traction rectifier transformer for urban rail transit Download PDFInfo
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- CN202871526U CN202871526U CN 201220538876 CN201220538876U CN202871526U CN 202871526 U CN202871526 U CN 202871526U CN 201220538876 CN201220538876 CN 201220538876 CN 201220538876 U CN201220538876 U CN 201220538876U CN 202871526 U CN202871526 U CN 202871526U
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Abstract
The utility model discloses a dry type traction rectifier transformer for urban rail transit. The dry type traction rectifier transformer for the urban rail transit comprises a support frame, an iron core and a three-phase coil, wherein the iron core and the coil are arranged on the support frame. An upper winding and a lower winding are axially arranged on the iron core of the each-phase coil, and two high-voltage coils and two low-voltage coils are sequentially arranged in the upper winding and the lower winding from outside to inside. High-voltage leading-out lines of the two high-voltage coils in the upper winding and the lower winding are in parallel connection with copper plates to be connected with a power grid, and low-voltage leading-out lines of the two low-voltage coils in the upper winding and the lower winding are respectively led out to be connected with a rectifier. The dry type traction rectifier transformer is strong in short circuit resistance and overload capacity, 12-pulse-wave output of one transformer and 24-pulse-wave output of two transformers can be achieved, 24-pulse-wave rectification has small harmonic pollution to the power grid, and a filter device of the transformer can be omitted.
Description
Technical field
The utility model belongs to the rectifier transformer technical field, relates in particular to a kind of urban track traffic dry-type traction rectifier transformer that can satisfy traction locomotive power rectifier system requirements.
Background technology
Urbanization process is progressively accelerated, and urban population sharply increases, and urban transportation faces severe situation, and Urban Rail Transit Development is the important means that solves the city traffic problem.Urban track traffic is compared with other public transport, has following characteristics: land used is economized, and capacity is large, and the conveying capacity of track circuit is nearly 10 times of highway communication conveying capacity.The energy-output ratio of per unit freight volume is few, thereby energy savings; Adopt electric traction, little to the pollution of environment.Dry-type traction rectifier transformer is the important component part of traction locomotive power rectifier system, and traction power source system rectification pulse number has two kinds of 12 pulse waves and 24 pulse waves, and wherein 24 pulse wave rectifiers are less to the harmonic pollution of electrical network, can save the filter at this place.At present, of home make like product all adopts high-voltage line around technology, has the shortcomings such as impact resistance is poor, eddy current loss is high.
The utility model content
The purpose of this utility model is to provide a kind of urban track traffic dry-type traction rectifier transformer, to solve the problems of the technologies described above.
To achieve these goals, the utility model adopts following technical scheme:
A kind of urban track traffic dry-type traction rectifier transformer, it is characterized in that, comprise bracing frame and the iron core and the coil that are arranged on the bracing frame, described coil is three-phase, upwards be provided with winding and lower winding in the iron mandrel of every phase coil, ecto-entad is provided with high-tension coil and low-voltage coil successively in upper winding, the lower winding; The high-voltage leading-out wire of two high-tension coils in upper winding, the lower winding links to each other with electrical network by the copper coin parallel connection, and the low pressure lead-out wire of two low-voltage coils in upper winding, the lower winding is drawn respectively with rectifier and linked to each other.
The utility model further improves and is: the high-tension coil of winding, lower winding adopts and prolongs limit triangular form phase shift and connect on the three-phase, and the low-voltage coil of winding, lower winding adopts respectively that Y is star-like, triangular form connects on the three-phase.
The utility model further improves and is: the spacing between upper winding and the lower winding is 20～60mm.
The utility model further improves and is: establish a cooling blower on the bracing frame before and after the position of corresponding every phase coil.
Compared with prior art, the utlity model has following advantage: the high-voltage leading-out wire of two high-tension coils of the upper and lower winding of the utility model links to each other with electrical network by a copper coin parallel connection; The secondary side lead-out wire of two low-voltage coils of upper and lower winding is drawn respectively with rectifier and is linked to each other, high-low pressure adopts full paper tinsel around reaching at high proportion filler cast, Short Circuit withstand, capability of overload are strong, can realize transformer 12 a pulse waves output, two transformer 24 pulse waves outputs, wherein 24 pulse wave rectifiers are less to the harmonic pollution of electrical network, can save the filter at this place.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the left TV structure schematic diagram of Fig. 1.
Fig. 3 is the backsight structural representation of Fig. 1.
Among the figure, 1, iron core; 2, bracing frame; 3, upper winding; 4, lower winding; 5, high-tension coil; 6, low-voltage coil; 7, high-voltage leading-out wire; 8, copper coin; 9, low pressure lead-out wire; 10, cooling blower.
Embodiment
Describe the technical solution of the utility model in detail below in conjunction with accompanying drawing.
For clearly demonstrating the technical characterstic of this programme, below by embodiment, and in conjunction with its accompanying drawing, the utility model is elaborated.
Shown in Fig. 1～2, the utility model urban track traffic dry-type traction rectifier transformer, comprise iron core 1, coil and bracing frame 2, described coil is three-phase, iron core 1 at every phase coil axially is provided with winding 3 and lower winding 4, and ecto-entad is provided with high-tension coil 5 and low-voltage coil 6 successively in the upper and lower winding; The high-voltage leading-out wire 7 of two high-tension coils 5 in the upper and lower winding links to each other with electrical network by a copper coin 8 parallel connections, and the low pressure lead-out wire 9 of two low-voltage coils 6 in the upper and lower winding is drawn respectively with rectifier and linked to each other;
The high-tension coil 5 of the upper and lower winding of three-phase all adopts and prolongs limit triangular form phase shift and connect, and the low-voltage coil 6 of the upper and lower winding of three-phase adopts respectively that Y is star-like, triangular form connects.
Spacing between described upper winding 3 and the lower winding 4 is 20～60mm.
On the bracing frame 2 below the coil, establish a cooling blower 10 before and after the position of corresponding every phase coil.
The utility model adopts the high lead-out wire 7 of two high-pressure side coils 5 of upper and lower winding to link to each other with electrical network by a copper coin 8 parallel connections; The low pressure lead-out wire 9 of two low-voltage coils 6 of upper and lower winding is drawn respectively with rectifier and is linked to each other, high-tension coil 5 of the present utility model and low-voltage coil 6 adopts full paper tinsel around, at high proportion filler cast, Short Circuit withstand, capability of overload are strong, can realize transformer 12 a pulse waves output, two transformer 24 pulse waves outputs, wherein 24 pulse wave rectifiers are less to the harmonic pollution of electrical network, can save the filter at this place.
The utility model does not describe part in detail, is those skilled in the art of the present technique's known technology.
Although the above is described the utility model by reference to the accompanying drawings; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away from the scope situation that the utility model aim and claim protect, can also make a lot of forms, these all belong within the protection of the present utility model.
Claims (4)
1. urban track traffic dry-type traction rectifier transformer, it is characterized in that, comprise bracing frame (2) and be arranged at iron core and coil on the bracing frame (2), described coil is three-phase, iron core (1) at every phase coil axially is provided with upper winding (3) and lower winding (4), and ecto-entad is provided with high-tension coil (5) and low-voltage coil (6) successively in upper winding, the lower winding; The high-voltage leading-out wire (7) of two high-tension coils (5) in upper winding, the lower winding links to each other with electrical network by copper coin (8) is in parallel, and the low pressure lead-out wire (9) of two low-voltage coils (6) in upper winding, the lower winding is drawn respectively with rectifier and linked to each other.
2. urban track traffic dry-type traction rectifier transformer according to claim 1, it is characterized in that, the high-tension coil of winding, lower winding (5) adopts and to prolong limit triangular form phase shift and connect on the three-phase, and the low-voltage coil of winding, lower winding (6) adopts respectively that Y is star-like, triangular form connects on the three-phase.
3. urban track traffic dry-type traction rectifier transformer according to claim 1 is characterized in that, the spacing between upper winding (3) and the lower winding (4) is 20～60mm.
4. urban track traffic dry-type traction rectifier transformer according to claim 1 is characterized in that, establishes a cooling blower (10) before and after the position of the upper corresponding every phase coil of bracing frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220538876 CN202871526U (en) | 2012-10-19 | 2012-10-19 | Dry type traction rectifier transformer for urban rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220538876 CN202871526U (en) | 2012-10-19 | 2012-10-19 | Dry type traction rectifier transformer for urban rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202871526U true CN202871526U (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220538876 Expired - Lifetime CN202871526U (en) | 2012-10-19 | 2012-10-19 | Dry type traction rectifier transformer for urban rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202871526U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134524A (en) * | 2014-07-17 | 2014-11-05 | 中电电气(江苏)股份有限公司 | 36-pulse-wave phase shifting rectifier transformer |
| CN105261458A (en) * | 2015-07-08 | 2016-01-20 | 四川艾德瑞电气有限公司 | Buried six-phase 12-pulse rectifier transformer |
| CN110571021A (en) * | 2019-08-02 | 2019-12-13 | 湖南大学 | Single-machine 24-pulse dry-type traction rectifier transformer with double-bridge winding mirror image arrangement |
| CN112289560A (en) * | 2020-10-26 | 2021-01-29 | 保定天威顺达变压器有限公司 | 12-pulse group 36-pulse rectifier transformer structure and method for reducing harmonic influence |
-
2012
- 2012-10-19 CN CN 201220538876 patent/CN202871526U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134524A (en) * | 2014-07-17 | 2014-11-05 | 中电电气(江苏)股份有限公司 | 36-pulse-wave phase shifting rectifier transformer |
| CN105261458A (en) * | 2015-07-08 | 2016-01-20 | 四川艾德瑞电气有限公司 | Buried six-phase 12-pulse rectifier transformer |
| CN110571021A (en) * | 2019-08-02 | 2019-12-13 | 湖南大学 | Single-machine 24-pulse dry-type traction rectifier transformer with double-bridge winding mirror image arrangement |
| CN110571021B (en) * | 2019-08-02 | 2022-01-21 | 湖南大学 | Single-machine 24-pulse dry-type traction rectifier transformer with double-bridge winding mirror image arrangement |
| CN112289560A (en) * | 2020-10-26 | 2021-01-29 | 保定天威顺达变压器有限公司 | 12-pulse group 36-pulse rectifier transformer structure and method for reducing harmonic influence |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |