CN201540811U - Rain-proof dry-type transformer for auxiliary system of electric locomotive - Google Patents
Rain-proof dry-type transformer for auxiliary system of electric locomotive Download PDFInfo
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- CN201540811U CN201540811U CN2009200635555U CN200920063555U CN201540811U CN 201540811 U CN201540811 U CN 201540811U CN 2009200635555 U CN2009200635555 U CN 2009200635555U CN 200920063555 U CN200920063555 U CN 200920063555U CN 201540811 U CN201540811 U CN 201540811U
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- inductor
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Abstract
The utility model relates to a rain-proof dry-type transformer for an auxiliary system of an electric locomotive. A transformer and a reactor are integrated together to form a magnetic integrated transformer structure, and high impedance is realized by a magnetic integrated technology; an inductor of the transformer and a subsequent capacitor are matched together to form a sine wave filter; and the magnetic integrated transformer structure comprises a primary side inductor and an output inductor. The rain-proof dry-type transformer is characterized in that the primary side inductor is internally connected with a reactor inductor in series; a three-phase iron core reactor inductor and a three-phase primary side inductor are combined together; and the reactor inductor is integrated in the primary side inductor of the transformer, a leakage inductor of the transformer is concentrated at the primary side by magnetic integration. In addition, moisture-proof technical treatment is carried out on the dry-type transformer, the outer surface of a transformer lead body is wrapped with insulating material, so as to lead the dry-type transformer to have good moisture-proof property.
Description
Technical field
The utility model relates to a kind of electric locomotive transmission facility, is a kind of auxiliary transformer that is used for electric locomotive specifically.Be adapted at using in the electric locomotive auxiliary power supply system.
Background technology
At present, AC transmission electric power locomotive adopts the three-phase AC asynchronous motor transmission, and main and auxiliary IGBT inverter power supply is adopted in main current supply circuit of the traction of locomotive and auxiliary power supply loop respectively.
2 of locomotive current transformer inside fully independently false impulse modulated inverter (PWMI) direct voltage is converted to the three-phase alternating voltage of frequency conversion, transformation and constant frequency, constant voltage, be the auxiliary transformer power supply.Auxiliary transformer then reduces air compressor motor, Oil pump electrical machinery or the air conditioner motor that locomotive is supplied with in the back with the three-phase alternating voltage of constant frequency, constant voltage; The three-phase alternating voltage of frequency conversion, transformation is reduced the various fan motors that locomotive is supplied with in the back.For improving the power supply quality of giving each workpiece of locomotive, traditional method is in the locomotive auxiliary power supply system filter reactor to be set harmonic current is shunted, and reduces the wave distortion of power network current.But find in the practical application that this kind adopts the transformer transformation to adopt the unsteady flow electric power system of reactor filtering still to have many, the disadvantage big, Heavy Weight that takes up room of system unit again simultaneously, necessary this is improved.
Summary of the invention
In order to overcome the deficiency that existing electric locomotive auxiliary transformer unsteady flow electric power system adopts the transformer transformation simultaneously and adopts reactor filtering to bring, the unsteady flow supply transformer is assisted in the electric locomotive that proposes a kind of volume that can reduce system unit effectively, weight, loss.
The technical scheme that its technical problem that solves the utility model adopts is: the unsteady flow supply transformer is assisted in a kind of electric locomotive, adopts dry-type transformer and magnet integrate construction; Described dry-type transformer and magnet integrate construction are realized the high impedance of transformer for transformer and reactor are integrated composition magnetic integrated transformer structure by the common factor of the magnetic line of force; The inductance of transformer is complementary with follow-up electric capacity and forms sine wave filter; Described magnetic integrated transformer structure comprises former limit inductance and outputting inductance two parts, its characteristics are, in the inductance of former limit, be serially connected with reactor inductance, three-phase iron-core reactor inductance is in the same place with the former limit of three-phase inductor combination, reactor inductance is integrated in the former limit inductance of transformer, and the leakage inductance that makes transformer is by the integrated primary side that concentrates on of magnetic.And this dry type transformer is carried out moisture-proof dosing technology handle, the appearance wrapping insulating material in the transformer lead body makes dry-type transformer have the characteristic of good protection against the tide.
The beneficial effects of the utility model are: adopt dry-type transformer and integrated magnetic, reduce by a reactor in the locomotive converter system, reduce volume, weight, the loss of magnetic element effectively, realize the lightweight of rail traction electric locomotive.And utilize integrated magnetic that transformer and reactor are integrated, make the transformer of the integrated formation high impedance of transformer and reactor.Be lower than 93% running environment in order to overcome the only suitable surrounding air relative humidity of conventional dry transformer, this transformer is broken through the use limitation of domestic dry-type transformer, make this dry-type transformer be applicable to the running environment of continuous once in a while 24 hours surrounding air relative humidity 95%-100% by the moisture-proof dosing technology processing, satisfy relative air humidity 100% instructions for use in continuous once in a while 24 hours.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is the sectional structural map of the utility model embodiment.
Fig. 3 is the sectional structural map of the utility model embodiment lead.
Among the figure: 1, former limit inductance; 2, outputting inductance; 3, reactor inductance; 4, main core; 5, secondary unshakable in one's determination; 6, primary winding; 7, secondary winding; 8, copper conductor; 9, bag waterproof insulating layer; 10, protection insulating barrier.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
From accompanying drawing 1 as can be seen, the utility model is the auxiliary unsteady flow supply transformer of a kind of electric locomotive, adopts dry-type transformer and magnet integrate construction; Described dry-type transformer and magnet integrate construction are realized high impedance for transformer and reactor are integrated composition magnetic integrated transformer structure by the common factor integrated technology of the magnetic line of force; The inductance of transformer is complementary with follow-up electric capacity and forms sine wave filter; Described magnetic integrated transformer structure comprises former limit inductance 1 and outputting inductance 2 two parts, its characteristics are, be serially connected with reactor inductance 3 in former limit inductance 1, three-phase iron-core reactor inductance 3 and the former limit of three-phase inductance 1 are combined, and reactor inductance 3 is integrated in the former limit inductance 1 of transformer.Wherein, the end 4 of first former limit inductance links to each other by the head end of lead with the 3rd reactor inductance in the three pole reactor; The end of second former limit inductance links to each other by the head end of lead with first reactor inductance in the three pole reactor; The end of the 3rd former limit inductance links to each other by the head end of lead with second reactor inductance in the three pole reactor; And reactor inductance and three-phase transformer inductance are serially connected in each inductance.
Fig. 2 has provided a kind of structure embodiment of the present utility model, as can be seen, the auxiliary unsteady flow supply transformer of this electric locomotive comprises main core 4 and secondary iron core 5 from accompanying drawing, and main core 4 is a transformer core, secondary unshakable in one's determination 5 is iron core of electric reactor, and primary winding 6 is transformer and reactor common.And main core 4 and secondary unshakable in one's determination 5 use that is combined, winding of transformer 6 is simultaneously on main core 4 and secondary unshakable in one's determination 5, and secondary winding 7 is only on main core 4, make the leakage inductance of transformer concentrate on primary side, pass through integrated magnetic, in the locomotive converter system, reduce by a reactor, reduce volume, weight, the loss of magnetic element effectively, realize the lightweight of rail traction electric locomotive.In addition,, realize the high impedance of transformer, satisfy the requirement of system filter inductance by changing air gap and the folded thick size of adjusting leakage inductance in the secondary iron core.
In Fig. 3 embodiment as can be seen; the primary winding 6 of this kind dry-type transformer and the copper conductor of the secondary winding 7 10 outer waterproof insulating layers 8 of bag earlier; thickness 0.22mm; outside waterproof insulating layer 8, be surrounded by protection insulating barrier 9 again; thickness 0.40mm; improve the water resistance of lead itself, thereby can effectively satisfy the environment for use of high relative air humidity.
Claims (3)
1. the rainproof dry-type transformer of Electric Locomotive Auxiliary System is characterized in that: adopt transformer and reactor are integrated composition magnetic integrated transformer structure; Described magnetic integrated transformer structure comprises former limit inductance and outputting inductance two parts, in the inductance of former limit, be serially connected with reactor inductance, three-phase iron-core reactor inductance is in the same place with the former limit of three-phase inductor combination, reactor inductance is integrated in the former limit inductance of transformer, and the leakage inductance that makes transformer is by the integrated primary side that concentrates on of magnetic.
2. the rainproof dry-type transformer of Electric Locomotive Auxiliary System as claimed in claim 1 is characterized in that: the former limit inductance that described reactor inductance is integrated in transformer is meant that the end of first former limit inductance in the three pole reactor links to each other by the head end of lead with the 3rd reactor inductance; The end of second former limit inductance links to each other by the head end of lead with first reactor inductance in the three pole reactor; The end of the 3rd former limit inductance links to each other by the head end of lead with second reactor inductance in the three pole reactor; And reactor inductance and three-phase transformer inductance are serially connected in each inductance.
3. the rainproof dry-type transformer of Electric Locomotive Auxiliary System as claimed in claim 2 is characterized in that: described transformer inductance is complementary with follow-up electric capacity and forms sine wave filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200635555U CN201540811U (en) | 2009-03-09 | 2009-03-09 | Rain-proof dry-type transformer for auxiliary system of electric locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200635555U CN201540811U (en) | 2009-03-09 | 2009-03-09 | Rain-proof dry-type transformer for auxiliary system of electric locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201540811U true CN201540811U (en) | 2010-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200635555U Expired - Lifetime CN201540811U (en) | 2009-03-09 | 2009-03-09 | Rain-proof dry-type transformer for auxiliary system of electric locomotive |
Country Status (1)
| Country | Link |
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| CN (1) | CN201540811U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123859A (en) * | 2011-11-18 | 2013-05-29 | 永济新时速电机电器有限责任公司 | High-leakage-inductance transformer |
| CN103400687A (en) * | 2013-08-23 | 2013-11-20 | 中国船舶重工集团公司第七一二研究所 | Transformer type magnetically-controlled reactor |
| CN104934194A (en) * | 2015-07-09 | 2015-09-23 | 南车株洲电机有限公司 | Auxiliary transformer used for electric locomotive |
| CN106328362A (en) * | 2015-06-25 | 2017-01-11 | 特富特科技(深圳)有限公司 | Annular transformer |
-
2009
- 2009-03-09 CN CN2009200635555U patent/CN201540811U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123859A (en) * | 2011-11-18 | 2013-05-29 | 永济新时速电机电器有限责任公司 | High-leakage-inductance transformer |
| CN103400687A (en) * | 2013-08-23 | 2013-11-20 | 中国船舶重工集团公司第七一二研究所 | Transformer type magnetically-controlled reactor |
| CN106328362A (en) * | 2015-06-25 | 2017-01-11 | 特富特科技(深圳)有限公司 | Annular transformer |
| CN106328362B (en) * | 2015-06-25 | 2018-07-10 | 特富特科技(深圳)有限公司 | A kind of toroidal transformer |
| CN104934194A (en) * | 2015-07-09 | 2015-09-23 | 南车株洲电机有限公司 | Auxiliary transformer used for electric locomotive |
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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: 20100804 |