CN201985769U - In-phase reverse parallel connection rectifier transformation device - Google Patents
In-phase reverse parallel connection rectifier transformation device Download PDFInfo
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- CN201985769U CN201985769U CN2011200250916U CN201120025091U CN201985769U CN 201985769 U CN201985769 U CN 201985769U CN 2011200250916 U CN2011200250916 U CN 2011200250916U CN 201120025091 U CN201120025091 U CN 201120025091U CN 201985769 U CN201985769 U CN 201985769U
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Abstract
The utility model discloses an in-phase reverse parallel connection rectifier transformation device which comprises a rectifier transformer and a rectifier cabinet. The rectifier transformer comprises a casing, as well as a high voltage winding and a low voltage winding which are respectively arranged in the casing; an in-phase parallel connection wire outgoing way is adopted by the low voltage winding; the outgoing terminal of the low voltage winding is connected with a corresponding rectifier circuit arranged in the rectifier cabinet through two bridge arms; the cophase outgoing terminals of the low voltage winding respectively stretch out of the casing; one ends of the bridge arms are connected with the outgoing terminals of the low voltage winding exposing outside the casing of the rectifier transformer and the other ends of the bridge arms are connected with corresponding rectifier circuits in the rectifier cabinet; the connection way correspondingly improves the power factor of the transformer, has low reactive losses and can better process flux leakage and heat of structures like an oil tank. Moreover, the improved rectifier transformer occupies a smaller area, is convenient to maintain, has low cost and has higher practicability.
Description
Technical field
The utility model relates to a kind of rectifier transformer.
Background technology
Rectifier transformer is because the distinguishing feature of its big electric current output is widely used in the high energy consumption electrochemical field.So-called rectifier transformer is exactly the power transformer of rectifier cell, and its task is exactly with rectifier cell, and alternating current is become direct current.Therefore, existing rectifier transformer is made up of transformer and rectifier cabinet on physical entity usually, is provided with bridge rectifier in the rectifier cabinet, by brachium pontis the low pressure exit in the transformer is linked to each other with rectification circuit.On circuit, as shown in Figure 1, existing transformer low voltage exit adopts the cophase counter parallel connection mode of connection to be connected with rectification circuit, so-called cophase counter parallel connection is exactly the parallel branch that the rectifier cell of same phase is divided into two opposite current, the adjacent setting of the lead-in wire of these two branch roads all is opposite sign but equal magnitude thereby make the electric current of two branch road lead-in wires in any moment.From Fig. 1 we as can be seen, stretch in the transformer case with same two brachium pontis that are connected mutually of each winding and to be connected with the exit of corresponding phase, this kind connected mode need increase between transformer and rectifier cabinet and connects the circuit busbar, will make both all bigger dimensionally like this.Simultaneously, the loss of lead-in wire is also bigger.
Along with the continuous development of industry with power electronic technology, rectification of big system and big current commutates system requirements are more and more, require also more and more higher simultaneously.Early stage people make it bigger dimensionally because rectifier cell little (less than 2000A) causes rectifier cabinet to be had to by the size of component reasonable Arrangement, and the rectifier cell list in modern times is only accomplishing 3000-9000A, and are special even reach 40000A.Therefore existing structure and connection principle with contrary and rectifier transformer can not satisfy modernized requirement.
Summary of the invention
The purpose of this utility model provides the rectifier transformer that a kind of energy consumption is lower, size is less, cost is low.
In order to achieve the above object, the technical solution adopted in the utility model is: a kind of cophase counter parallel connection rectifier transformer device, comprise rectifier transformer and rectifier cabinet, described rectifier transformer comprises casing, be separately positioned on high pressure winding and low pressure winding in the casing, described low pressure winding adopts the cophase counter parallel connection outlet method, its leading-out terminal is connected with corresponding rectification circuit mutually in being arranged on rectifier cabinet by two brachium pontis, the leading-out terminal of the same phase of described low pressure winding extend out to respectively outside the described casing, described brachium pontis one end is connected with the low pressure winding terminal that exposes outside the rectifier transformer casing, and the other end is connected with corresponding rectification circuit in the rectifier cabinet.
Further, the rectification circuit in the described rectifier cabinet also adopts the cophase counter parallel connection mode of connection.
Described rectification circuit is a three-phase bridge rectifier circuit.
Rectifier cell maximum forward average current in the described rectifier cabinet on each parallel branch is 3000-40000A.
Described rectifier cell is a silicon rectifier cell.
Described low pressure winding cophase counter parallel connection is pressed the line mode for pressing line current with contrary also.
Adopt technique scheme, the utlity model has following advantage: the utility model is arranged on outside the transformer shell by the low pressure winding exit with transformer, thereby outside the transformer casing, link with low pressure winding exit with the joining brachium pontis of rectifier cabinet, this kind connected mode makes the corresponding raising of the power factor (PF) of transformer, reactive loss is low, can handle the leakage field heating of structural members such as fuel tank well.And the rectifier transformer floor space after the improvement is less, easy to maintenance, and the cost cost is low, has bigger practicality.
Description of drawings
Accompanying drawing 1 is existing rectifier transformer elementary diagram;
Accompanying drawing 2 is the utility model rectifier transformer elementary diagram;
Accompanying drawing 3 is with contrary and back elementary diagram to rectifier cabinet;
Wherein: 1, rectifier transformer; 11, casing; 12, high pressure winding; 13, low pressure winding; 2, rectifier cabinet; 21, cabinet; 22, rectification circuit.
Embodiment
Below in conjunction with accompanying drawing, to the utility model the preferred mode of implementing be further described:
Rectifier transformer as shown in Figure 2, the rectifier cabinet 2 that it comprises transformer 1, is connected with transformer, wherein transformer 1 comprises casing 11, is arranged on high pressure winding 12 and low pressure winding 13 in the casing 1.Described rectifier cabinet 2 comprises cabinet 21, is arranged on the rectification circuit 22 in the cabinet 21.Described transformer 1 low pressure winding 13 adopts the outlet form of cophase counter parallel connection, be that (Butut is not attractive in appearance for the adjacent layout of lead-in wire of parallel branch of two opposite current of every phase, Fig. 2 homophase two parallel branches distribute up and down), two brachium pontis of the homophase of each branch road of two parallel branches are connected with same leading-out terminal mutually.In the present embodiment, described low pressure winding cophase counter parallel connection is pressed the line mode further for pressing line current with contrary also.Particularly, the forward leading-out terminal of parallel branch A1 is connected with a12 with brachium pontis a11, and the negative sense leading-out terminal of parallel branch A2 is connected with a42 with brachium pontis a41; The forward leading-out terminal of parallel branch B1 is connected with b32 with brachium pontis b31, and the negative sense leading-out terminal of parallel branch B2 is connected with b62 with brachium pontis b61; The forward leading-out terminal of parallel branch C1 is connected with c52 with brachium pontis c51, and the negative sense leading-out terminal of parallel branch C2 is connected with c22 with brachium pontis c21.In the present embodiment, the exit of each parallel branch extend out to the outside of rectifier casing 11 respectively, the end that corresponding brachium pontis a11/a12, a41/a42, b31/b32, b61/b62, c51/c52, c21/c22 are connected with exit exposes between transformer casing 11 and rectifier cabinet cabinet 21, and the interior rectification circuit of the other end of brachium pontis and rectifier cabinet accordingly is connected.The brachium pontis that is connected with described winding exit also is arranged in rectifier cabinet, and effect will be better.
In the present embodiment, rectification circuit also adopts the mode of connection of cophase counter parallel connection, as shown in Figure 3.Rectification circuit is adopted as three-phase bridge rectifier circuit, the maximum average current of each rectifier cell can be accomplished 3000-9000A, and material adopts silicon materials, makes that whole rectifier transformer device size is as far as possible little, because size reduces, the manufacturing cost of corresponding potential device will reduce.
The utility model leads to outside the transformer casing by the leading-out terminal with the low pressure winding, simultaneously, keeps transformer constant to the equivalent distances L of rectifier cell, can reduce the lead-in wire loss of commutation system greatly, particularly,
The resistance loss of tradition cophase counter parallel connection lead-in wire:
P
old
=13.848?L*ρ*j (W)；
The resistance loss of the utility model cophase counter parallel connection lead-in wire:
P
new
=9.79L*ρ*j (W)；
Wherein: the L-transformer is to the equivalent distances of rectifier cell;
ρ-bus resistivity;
The j-current density;
Commutation system lead-in wire (interchange) loss shown in Figure 1 accounts for 20% transformer load loss Pf, and the lead-in wire loss of the utility model rectification is fallen and is: Pnew=20%/1.41Pf=14.2%Pf.
If establishing existing efficient with contrary and rectification is 98.5%.So, the utility model can reach 98.71% with the efficient of contrary and constructional device.
Because the lead-in wire loss is reduced, thereby can further reach purpose of energy saving, below will be to the rectifier transformer device energy-saving effect analyzing examples of 10000KVA load:
Rectifying device for a 10000KVA load can reduce the wastage:
△P＝10000(1.5-1.287)/100=21.3 (kW)；
By annual operation 300 days, then can save: P=21.3*300*24=153360 (degree/year);
By 0.4 yuan of every degree electricity price, save electricity charge: $=153360*0.4=61344 (unit/year);
Press 25 years power transformation costs: C=61344*25=1533600 unit.
To sum up, the utility model cophase counter parallel connection rectifier transformer apparatus has that loss is low, floor space is little, maintainability is good, low cost and other advantages, has bigger application value.
Claims (6)
1. cophase counter parallel connection rectifier transformer device, comprise rectifier transformer and rectifier cabinet, described rectifier transformer comprises casing, be separately positioned on high pressure winding and low pressure winding in the casing, described low pressure winding adopts the cophase counter parallel connection outlet method, its leading-out terminal is connected with corresponding rectification circuit mutually in being arranged on rectifier cabinet by two brachium pontis, it is characterized in that: the leading-out terminal of the same phase of described low pressure winding extend out to respectively outside the described casing, described brachium pontis one end is connected with the low pressure winding terminal that exposes outside the rectifier transformer casing, and the other end is connected with corresponding rectification circuit in the rectifier cabinet.
2. cophase counter parallel connection rectifier transformer device according to claim 1 is characterized in that: the rectification circuit in the described rectifier cabinet also adopts the cophase counter parallel connection mode of connection.
3. cophase counter parallel connection rectifier transformer device according to claim 1 is characterized in that: described rectification circuit is a three-phase bridge rectifier circuit.
4. cophase counter parallel connection rectifier transformer device according to claim 3 is characterized in that: each rectifier cell maximum forward average current of described rectification circuit is 3000-40000A.
5. cophase counter parallel connection rectifier transformer device according to claim 3 is characterized in that: described rectifier cell is silicon rectifier or silicon controlled rectifier.
6. cophase counter parallel connection rectifier transformer device according to claim 1 is characterized in that: described low pressure winding cophase counter parallel connection is pressed the line mode for pressing line current with contrary also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200250916U CN201985769U (en) | 2011-01-26 | 2011-01-26 | In-phase reverse parallel connection rectifier transformation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200250916U CN201985769U (en) | 2011-01-26 | 2011-01-26 | In-phase reverse parallel connection rectifier transformation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201985769U true CN201985769U (en) | 2011-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200250916U Expired - Fee Related CN201985769U (en) | 2011-01-26 | 2011-01-26 | In-phase reverse parallel connection rectifier transformation device |
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| CN (1) | CN201985769U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184770A (en) * | 2011-01-26 | 2011-09-14 | 张家港市沙洲特种变压器制造有限公司 | Co-phase counter in-parallel rectifying transformation device |
| CN102360855A (en) * | 2011-11-04 | 2012-02-22 | 广西恒顺电器有限公司 | Low-voltage lead arrangement structure for 12-pulse wave rectifier transformer |
| CN103066863A (en) * | 2012-12-25 | 2013-04-24 | 保定天威集团(江苏)五洲变压器有限公司 | Two-in-one voltage transformation rectifying device |
-
2011
- 2011-01-26 CN CN2011200250916U patent/CN201985769U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184770A (en) * | 2011-01-26 | 2011-09-14 | 张家港市沙洲特种变压器制造有限公司 | Co-phase counter in-parallel rectifying transformation device |
| CN102360855A (en) * | 2011-11-04 | 2012-02-22 | 广西恒顺电器有限公司 | Low-voltage lead arrangement structure for 12-pulse wave rectifier transformer |
| CN103066863A (en) * | 2012-12-25 | 2013-04-24 | 保定天威集团(江苏)五洲变压器有限公司 | Two-in-one voltage transformation rectifying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU TIANXIANG ENERGY-SAVING TECHNOLOGY CO., LT Free format text: FORMER OWNER: ZHANGJIAGANG SHAZHOU SPECIAL TRANSFORMER MANUFACTURING CO., LTD. Effective date: 20121203 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 215638 SUZHOU, JIANGSU PROVINCE TO: 215600 SUZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121203 Address after: 215600 Shanghai West Road, Zhangjiagang Free Trade Zone, Suzhou, Jiangsu Patentee after: JIANGSU TIANXIANG ENERGY SAVING SCIENCE & TECHNOLOGY CO., LTD. Address before: 215638, No. 1, west section of No. two ring road, Zhangjiagang, Jiangsu, Suzhou Patentee before: Zhangjiagang Shazhou Special Transformer Manufacturing Co., Ltd. |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhangjiagang Free Trade Zone Tianxiang Electirc Co., Ltd. Assignor: JIANGSU TIANXIANG ENERGY SAVING SCIENCE & TECHNOLOGY CO., LTD. Contract record no.: 2013320010070 Denomination of utility model: Co-phase counter in-parallel rectifying transformation device Granted publication date: 20110921 License type: Exclusive License Record date: 20130415 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20150126 |
|
| EXPY | Termination of patent right or utility model |