CN201698878U - Dual-voltage transformer - Google Patents
Dual-voltage transformer Download PDFInfo
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- CN201698878U CN201698878U CN2010201552637U CN201020155263U CN201698878U CN 201698878 U CN201698878 U CN 201698878U CN 2010201552637 U CN2010201552637 U CN 2010201552637U CN 201020155263 U CN201020155263 U CN 201020155263U CN 201698878 U CN201698878 U CN 201698878U
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- side winding
- pressure side
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- transformer
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Abstract
The utility model relates to a transformer for changing alternating-current voltage size by utilizing the principle of electromagnetic induction. A dual-voltage transformer comprises a high-voltage side winding, a low-voltage side winding and a closed iron core. The high-voltage side winding and the low-voltage side winding are both wound on the closed iron core, and the high-voltage side winding is divided into two windings along the axial direction of the iron core, and the two windings are connected in series or in parallel as required. The dual-voltage transformer divides the high-voltage side winding of the transformer in the prior art into two windings along the axial direction of the iron core, and the two windings are connected in series or in parallel as required, so as to realize voltage transformation on the high-voltage side winding of the transformer between two voltages; moreover, the same transformer can be applied into power grids with two different voltage levels, so as to effectively widen the application range of transformers and effectively reduce cost.
Description
Technical field
The utility model relates to a kind of transformer.
Background technology
At present, existing transformer only can change over another kind of alternating voltage by electromagnetic induction principle with a kind of alternating voltage.See also Fig. 1, Figure 1 shows that the schematic diagram of existing transformer, as seen from Fig. 1, at primary side (AX) the input 10kV of transformer or the alternating current of 20kV, by electromagnetic induction principle, induce the 400V alternating current at the secondary side of transformer, use for industrial and agricultural production.
Existing common transformer is widely used in the urban and rural power grids, and in case the transformer manufacturing is finished, the voltage of its primary side is with regard to respective fixation.Yet along with China's economic development, power consumption increase, the power supply of 10kV level electrical network half is not through just meeting the demands, and the 20kV level electrical network that arises at the historic moment will occur.Existing 10kV level electrical network is also gradually to the transition of 20kV level, and the transformer that the 10kV level becomes 400V will be eliminated.
In this new and old replacement on the horizon period, how a kind of electrical network needs that can not only adapt to existing 10kV level are provided, and can also are technical problems that those skilled in the art need to be resolved hurrily by two voltage transformers that can adapt to the national 20kV level electrical network needs of promoting after the simple transformation.
The utility model content
The purpose of this utility model is to provide a kind of pair of voltage transformer, can realize two kinds of conversion between the voltage, can be applied in two kinds of electrical networks with different voltage levels.
To achieve the above object, the utility model adopts following technical scheme:
A kind of pair of voltage transformer, comprise high-pressure side winding, low-pressure side winding and iron core-closed, described high-pressure side winding and low-pressure side winding are wound on described iron core-closed respectively, to the separated into two parts winding, described two parts winding is connected to select a mode in two kinds of connected modes of series connection and parallel connection described high-pressure side winding according to demand along iron mandrel.
In above-mentioned two voltage transformers, described high-pressure side winding along iron mandrel to being divided into two parts winding.
In above-mentioned two voltage transformers, described two parts winding be by the high-pressure side winding of 20kV level along iron mandrel to being divided into upper and lower two parts winding, the drawing respectively end to end of described upper and lower two parts winding.
In above-mentioned two voltage transformers, when described upper and lower two parts winding was connected in parallel, described high-pressure side winding was the 10kV level.
In above-mentioned two voltage transformers, when described upper and lower two parts windings in series connected, described high-pressure side winding was the 20kV level.
In above-mentioned two voltage transformers, the low-pressure side winding that described low-pressure side winding is 400V.
In above-mentioned two voltage transformers, the class of insulation of described high-pressure side winding requires to be provided with according to the class of insulation of the high-pressure side winding of 20KV.
The beneficial effects of the utility model are as follows:
The utility model by the high-pressure side winding of existing transformer is pressed winding along iron mandrel to the separated into two parts winding, make described two parts winding in two kinds of connected modes of series connection and parallel connection, be connected to select a mode according to demand, realize the conversion of voltage between two kinds of voltage of the high-pressure side winding of transformer, thereby in can electrical network with same transformer application to two kind of different voltage levels, thereby effectively opened up the application of transformer, also effectively reduced cost simultaneously.
Description of drawings
Of the present utility model pair of voltage transformer provided by following embodiment and accompanying drawing.
Fig. 1 is existing transformer principle figure;
Fig. 2 is the 10kV level transformer principle figure after two groups of 10kV windings parallel connection of the utility model embodiment 1;
Fig. 3 is the 10kV level transformer front view after two groups of 10kV windings parallel connection of the utility model embodiment 1;
Fig. 4 is the 10kV level transformer rearview of the utility model embodiment 1;
Fig. 5 is the 10kV level transformer side cutaway view of embodiment 1 of the present utility model;
Fig. 6 is the 20kV level transformer principle figure after two groups of 10kV windings in series of the utility model embodiment 2;
Fig. 7 is the 20kV level transformer front view after two groups of 10kV windings in series of the utility model embodiment 2;
Among the figure, 1-high-pressure side folder, 1 '-low-pressure side folder, 2A-high-pressure side A phase connection terminal, 2B-high-pressure side B phase connection terminal, 2C-high-pressure side C phase connection terminal, 2 ' a-low-pressure side a phase connection terminal, 2 ' b-low-pressure side b phase connection terminal, 2 ' c-low-pressure side c phase connection terminal, 3-iron core, 4-base, 5-plate, 6-high-side lead, 7-high-pressure side winding, 8-low-pressure side winding.
Embodiment
Below will be described in further detail of the present utility model pair of voltage transformer.
Below with reference to accompanying drawings the utility model is described in more detail, has wherein represented preferred embodiment of the present utility model, should be appreciated that those skilled in the art can revise the utility model described here and still realize advantageous effects of the present utility model.Therefore, following description is appreciated that extensively knowing for those skilled in the art, and not as to restriction of the present utility model.
For clear, whole features of practical embodiments are not described.In the following description, be not described in detail known function and structure, because they can make the utility model because unnecessary details and confusion.Will be understood that in the exploitation of any practical embodiments, must make a large amount of implementation details, for example, change into another embodiment by an embodiment according to relevant system or relevant commercial restriction to realize developer's specific objective.In addition, will be understood that this development may be complicated and time-consuming, but only be routine work to those skilled in the art.
For the purpose of this utility model, feature are become apparent, embodiment of the present utility model is further described below in conjunction with accompanying drawing.It should be noted that accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only in order to convenient, the purpose of aid illustration the utility model embodiment lucidly.
See also Fig. 2-5, Figure 2 shows that the 10kV level transformer principle figure after two groups of 10kV windings parallel connection of the utility model embodiment 1; Figure 3 shows that the 10kV level transformer front view after two groups of 10kV windings parallel connection of the utility model embodiment 1; Figure 4 shows that the 10kV level transformer rearview of the utility model embodiment 1; Figure 5 shows that the 10kV level transformer side cutaway view of embodiment 1 of the present utility model;
This pair of voltage transformer, comprise high-pressure side winding 7 (being first side winding in the present embodiment), low-pressure side winding 8 (being secondary side winding in the present embodiment) and iron core-closed 3, described high-pressure side winding 7 and low-pressure side winding 8 are wound on described iron core-closed 3 respectively, to the separated into two parts winding, described two parts winding is connected to select a mode in two kinds of connected modes of series connection and parallel connection described high-pressure side 7 windings according to demand along iron mandrel.
In the present embodiment, described two parts winding be high-pressure side winding by existing 20kV level along iron mandrel to being divided into upper and lower two parts winding, drawing respectively end to end of described upper and lower two parts winding, so that the in parallel or series connection of described upper and lower two parts winding, and the switching between two kinds of connected modes.
In the present embodiment, described upper and lower two parts sub-winding is connected mutually, and described high-pressure side winding is the 10kV level, the low-pressure side winding that described low-pressure side winding is 400V.Specifically, described high-pressure side winding 7 is to be composed in parallel by plate 5 by two groups of 10KV windings that axially separate along iron core 3, the alternating current of three of (primary side) binding posts (high-pressure side A phase connection terminal 2A, high-pressure side B phase connection terminal 2B and high-pressure side C phase connection terminal 2C) input three-phase 10KV in the high-pressure side, by electromagnetic induction principle, induce the 400V alternating current at the low-pressure side winding 8 of this transformer.
Because described high-pressure side winding 7 will be with in the electrical network of 20kV after the electrical network upgrading, the class of insulation of the high-pressure side winding 7 of described this transformer requires to be provided with according to the class of insulation of the high-pressure side winding of 20KV.
Embodiment 2
See also Fig. 6-7, Figure 6 shows that the 20kV level transformer principle figure after two groups of 10kV windings in series of the utility model embodiment 2; Figure 7 shows that the 20kV level transformer front view after two groups of 10kV windings in series of the utility model embodiment 2.In conjunction with consulting Fig. 4-5, Fig. 4 also is the 20kV level transformer rearview of the utility model embodiment 2 simultaneously simultaneously; Fig. 5 also is the 20kV level transformer side cutaway view of embodiment 2 of the present utility model simultaneously.
Present embodiment is with the difference of embodiment 1: described upper and lower two parts winding is connected mutually, and described high-pressure side winding is the 20kV level, the low-pressure side winding that described low-pressure side winding is 400V.Specifically, described high-pressure side winding 7 is to be composed in series by plate 5 by two groups of 10KV windings that axially separate along iron core 3, alternating current on high-tension side three binding posts (high-pressure side A phase connection terminal 2A, high-pressure side B phase connection terminal 2B and high-pressure side C phase connection terminal 2C) input three-phase 20KV, by electromagnetic induction principle, induce the 400V alternating current at the low-pressure side winding 8 of this transformer.
From embodiment 1 and embodiment 2 as seen, this transformer device structure is simple, easy to use, both can satisfy the demand of present 10kV level electrical network, and, can satisfy the demand of 20kV level electrical network in the future again by simple conversion, thereby, can effectively save cost of investment and resource, and effectively open up the application of transformer.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (7)
1. two voltage transformer, comprise high-pressure side winding, low-pressure side winding and iron core-closed, described high-pressure side winding and low-pressure side winding are wound on described iron core-closed respectively, it is characterized in that, to the separated into two parts winding, described two parts winding is connected to select a mode in two kinds of connected modes of series connection and parallel connection described high-pressure side winding according to demand along iron mandrel.
2. pair voltage transformer as claimed in claim 1 is characterized in that, described high-pressure side winding along iron mandrel to being divided into two parts winding.
3. pair voltage transformer as claimed in claim 2 is characterized in that, described two parts winding be by the high-pressure side winding of 20kV level along iron mandrel to being divided into upper and lower two parts winding, the drawing respectively end to end of described upper and lower two parts winding.
4. pair voltage transformer as claimed in claim 3 is characterized in that, when described upper and lower two parts winding was connected in parallel, described high-pressure side winding was the 10kV level.
5. pair voltage transformer as claimed in claim 3 is characterized in that, when described upper and lower two parts windings in series connected, described high-pressure side winding was the 20kV level.
6. pair voltage transformer as claimed in claim 3 is characterized in that, the low-pressure side winding that described low-pressure side winding is 400V.
7. pair voltage transformer as claimed in claim 3 is characterized in that, the class of insulation of described high-pressure side winding requires to be provided with according to the class of insulation of the high-pressure side winding of 20KV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201552637U CN201698878U (en) | 2010-04-09 | 2010-04-09 | Dual-voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201552637U CN201698878U (en) | 2010-04-09 | 2010-04-09 | Dual-voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201698878U true CN201698878U (en) | 2011-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201552637U Expired - Fee Related CN201698878U (en) | 2010-04-09 | 2010-04-09 | Dual-voltage transformer |
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| CN (1) | CN201698878U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102214513A (en) * | 2010-04-09 | 2011-10-12 | 江苏伯乐达变压器有限公司 | Dual-voltage transformer |
| CN102254667A (en) * | 2011-01-19 | 2011-11-23 | 江苏宝亨新电气有限公司 | High-capacity transformer coil |
| CN102360804A (en) * | 2011-09-22 | 2012-02-22 | 江西稀有金属钨业控股集团有限公司 | High-voltage transformer with double transformation ratios |
| CN103000360A (en) * | 2012-12-17 | 2013-03-27 | 杭州大互互感器有限公司 | 10kV-20kV voltage transformer and voltage changing method |
-
2010
- 2010-04-09 CN CN2010201552637U patent/CN201698878U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102214513A (en) * | 2010-04-09 | 2011-10-12 | 江苏伯乐达变压器有限公司 | Dual-voltage transformer |
| CN102254667A (en) * | 2011-01-19 | 2011-11-23 | 江苏宝亨新电气有限公司 | High-capacity transformer coil |
| CN102360804A (en) * | 2011-09-22 | 2012-02-22 | 江西稀有金属钨业控股集团有限公司 | High-voltage transformer with double transformation ratios |
| CN103000360A (en) * | 2012-12-17 | 2013-03-27 | 杭州大互互感器有限公司 | 10kV-20kV voltage transformer and voltage changing method |
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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 | ||
| CP03 | Change of name, title or address |
Address after: 224051 No. 21, glorious road, Ting Lake District, Jiangsu, Yancheng City (18) Patentee after: Jiangsu Zhongtian Boleda Transformer Co. Ltd. Address before: 224051 No. 1 hope Avenue, Ting Lake Economic Development Zone, Jiangsu, Yancheng City Patentee before: Jiangsu Boleda Transformer Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20170409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |