CN201622922U - Phase-shifting dry-type transformer for frequency conversion and voltage regulation - Google Patents
Phase-shifting dry-type transformer for frequency conversion and voltage regulation Download PDFInfo
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- CN201622922U CN201622922U CN2010201031042U CN201020103104U CN201622922U CN 201622922 U CN201622922 U CN 201622922U CN 2010201031042 U CN2010201031042 U CN 2010201031042U CN 201020103104 U CN201020103104 U CN 201020103104U CN 201622922 U CN201622922 U CN 201622922U
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Abstract
The utility model discloses a phase-shifting dry-type transformer for frequency conversion and voltage regulation, which is characterized in that a primary winding is a multi-layer layered winding and adopts star-shaped connection; a secondary winding adopts axial arrangement of 3*6 (18 together) small windings, and forms 36 pulse wave by an edge-extending delta connection method; each phase of the secondary winding consists of six small windings which are axially arranged; each small winding is wound by adopting an epitaxial delta cake-type winding; and the extending edges of the six small windings of each phase are in delta connection, and the difference of the adjacent phase-shifting angles is 10 degrees. The phase-shifting dry-type transformer not only has the advantages of saving energy and reducing the quantity of system transformers, but also can greatly improve wave form of a power grid side, eliminate harmonic pollution of a power grid, improve the power factors under load, is used for frequency conversion and speed regulation of pump-type equipment at units, such as fossil-fired power plants and the like, and greatly reduce energy consumption and power consumption.
Description
Technical field
The utility model relates to electrical equipment technical field, is specifically related to a kind of dry-type transformer of realizing the phase shift of many pulse waves for the supporting single device body of frequency conversion rectifier device.
Background technology
For the high order harmonic component of improving rectifying device to electrical network, the influence of equipment such as communication has only the rectification of the increasing number of phases (equating as 12,24,36), pulse number is many more, flip-flop is just pure more, thereby can eliminate harmonic pollution in electric power net.
At present, common high-pressure frequency-conversion system normally is made up of step-down transformer, frequency converter, step-up transformer and motor.Common high-pressure frequency-conversion system exists following shortcoming: 1, employed number transformer is many; 2, the waveform quality of grid side is poor, and electric network pollution is serious; 3, energy resource consumption is many, and power consumption is big.
For overcoming above-mentioned shortcoming of the prior art, the utility model proposes a kind of new solution.
The utility model content
Technical problem to be solved in the utility model is: how a kind of frequency conversion voltage adjusting phase shift dry-type transformer is provided, that this transformer not only has is energy-conservation, reduce the advantage of system transformer quantity, and can improve the waveform of grid side greatly, eliminated harmonic pollution in electric power net, improved the power factor under the load, be used for the pump apparatus frequency control of units such as thermal power plant, reduce energy resource consumption and power consumption greatly.
To achieve the above object of the invention, the technical scheme that the utility model adopted is: a kind of frequency conversion voltage adjusting phase shift dry-type transformer is provided, is made up of iron core, winding, secondary winding, device body, lead-in wire and an annex; Described iron core adopts high many seams of magnetic conduction cold-rolled orientation silicon steel sheet stack to become the three-phase three-column structure, and silicon steel sheet is by channel-section steel folder up and down and draw screw rod to connect into an integral body; Overlap once winding and secondary winding on the iron core column of described iron core from inside to outside successively; Be respectively arranged with air flue between a described winding and the secondary winding and between winding and the iron core column; It is characterized in that: a described winding is a multilayer laminar winding, adopts Y-connection; Described secondary winding adopts 3 * 6 to have 18 little axis of winding arrangements, constitutes 36 pulse waves by the extend-triangle connection; Each of described secondary winding is made up of 6 little windings of axially-aligned, and each little winding adopts the coiling of lengthened triangular pie winding; The extend-triangle of 6 little windings of each phase connects, and the phase shifting angle of adjacent little winding differs 10 °.
In sum, frequency conversion voltage adjusting provided by the utility model not only has energy-conservation, as to reduce system transformer quantity advantage with the phase shift dry-type transformer, and can improve the waveform of grid side greatly, eliminated harmonic pollution in electric power net, improved the power factor under the load, be used for the pump apparatus frequency control of units such as thermal power plant, reduce energy resource consumption and power consumption greatly.
Description of drawings
Fig. 1 is the winding distribution schematic diagram of frequency conversion voltage adjusting with the phase shift dry-type transformer.
Fig. 2 is a winding connection schematic diagram.
Fig. 3 is the secondary winding elementary diagram that moves to right.
Fig. 4 is the secondary winding elementary diagram that moves to left.
Fig. 5 is the number of turn distribution sketch of the mutually little winding of a in the secondary winding.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
As shown in the figure, this frequency conversion voltage adjusting is made up of iron core, winding, secondary winding, device body, lead-in wire and an annex with the phase shift dry-type transformer; Described iron core adopts high many seams of magnetic conduction cold-rolled orientation silicon steel sheet stack to become the three-phase three-column structure, and silicon steel sheet is by channel-section steel folder up and down and draw screw rod to connect into an integral body; Be arranged with winding and secondary winding on the iron core column of described iron core from inside to outside successively; Be respectively arranged with air flue between a described winding and the secondary winding and between winding and the iron core column; It is characterized in that: a described winding is a multilayer laminar winding, adopts Y-connection; Described secondary winding adopts 3 * 6 to have 18 little axis of winding arrangements, constitutes 36 pulse waves by the extend-triangle connection; Each of described secondary winding is made up of 6 little windings of axially-aligned, and each little winding adopts the coiling of lengthened triangular pie winding; The extend-triangle of 6 little windings of each phase connects, and the phase shifting angle of adjacent little winding differs 10 ° (+25 ° ,+15 ° ,+5 ° ,-5 ° ,-15 ° ,-25 °).
An above-mentioned winding connects into star and connects, and head end A, B, C draw; Secondary winding connects into lengthened triangular and connects, and head end a1, a2, a3, a4, a5, a6, b1, b2, b3, b4, b5, b6, c1, c2, c3, c4, c5, c6 draw; Constituted the lead-in wire assembling of transformer jointly.
Fig. 3 is the secondary winding elementary diagram that moves to right, wherein phase shifting angle be on the occasion of; Fig. 4 is the secondary winding elementary diagram that moves to left, and wherein phase shifting angle is a negative value.
In sum, frequency conversion voltage adjusting of the present utility model phase shift dry-type transformer adopts high many seams of magnetic conduction orientation silicon steel sheet stack to become the three-phase three-column closed magnetic loop, constitutes the magnetic loop of transformer.A winding, secondary winding is inserted in the three-phase three-column iron core respectively, and a winding connects into star and connects, and secondary winding connects into lengthened triangular and connects realization 36 pulse waves, constitutes the circuit part of transformer.
But; the above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection range of the utility model claim.
Claims (1)
1. a frequency conversion voltage adjusting phase shift dry-type transformer is made up of iron core, winding, secondary winding, device body, lead-in wire and an annex; Described iron core adopts high many seams of magnetic conduction cold-rolled orientation silicon steel sheet stack to become the three-phase three-column structure, and silicon steel sheet is by channel-section steel folder up and down and draw screw rod to connect into an integral body; Overlap once winding and secondary winding on the iron core column of described iron core from inside to outside successively; Be respectively arranged with air flue between a described winding and the secondary winding and between winding and the iron core column; It is characterized in that: a described winding is a multilayer laminar winding, adopts Y-connection; Described secondary winding adopts 3 * 6 to have 18 little axis of winding arrangements, constitutes 36 pulse waves by the extend-triangle connection; Each of described secondary winding is made up of 6 little windings of axially-aligned, and each little winding adopts the coiling of lengthened triangular pie winding; The extend-triangle of 6 little windings of each phase connects, and the phase shifting angle of adjacent little winding differs 10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201031042U CN201622922U (en) | 2010-01-28 | 2010-01-28 | Phase-shifting dry-type transformer for frequency conversion and voltage regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201031042U CN201622922U (en) | 2010-01-28 | 2010-01-28 | Phase-shifting dry-type transformer for frequency conversion and voltage regulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201622922U true CN201622922U (en) | 2010-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201031042U Expired - Fee Related CN201622922U (en) | 2010-01-28 | 2010-01-28 | Phase-shifting dry-type transformer for frequency conversion and voltage regulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201622922U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568799A (en) * | 2011-12-30 | 2012-07-11 | 新能动力（北京）电气科技有限公司 | Phase-shift transformer and electric energy transmission device with same |
| CN103515076A (en) * | 2013-09-12 | 2014-01-15 | 上海查尔斯光电科技有限公司 | Phase conversion transformer |
-
2010
- 2010-01-28 CN CN2010201031042U patent/CN201622922U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568799A (en) * | 2011-12-30 | 2012-07-11 | 新能动力（北京）电气科技有限公司 | Phase-shift transformer and electric energy transmission device with same |
| CN102568799B (en) * | 2011-12-30 | 2015-05-06 | 新能动力（北京）电气科技有限公司 | Phase-shift transformer and electric energy transmission device with same |
| CN103515076A (en) * | 2013-09-12 | 2014-01-15 | 上海查尔斯光电科技有限公司 | Phase conversion transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHENGDU XIDIAN SHU'NENG ELECTRIC CO., LTD. Free format text: FORMER NAME: SICHUAN SHU'NENG ELECTRIC APPLIANCE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 611130, No. 41, willow town, Wenjiang District, Sichuan, Chengdu, Jianshe Road Patentee after: Chengdu Xidian Sunen Electrical Co., Ltd. Address before: 611130, No. 41, willow town, Wenjiang District, Sichuan, Chengdu, Jianshe Road Patentee before: Sichuan Shuneng Electric Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20170128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |