CN202352485U - Step-up transformer for photovoltaic power generation - Google Patents
Step-up transformer for photovoltaic power generation Download PDFInfo
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- CN202352485U CN202352485U CN2011204585406U CN201120458540U CN202352485U CN 202352485 U CN202352485 U CN 202352485U CN 2011204585406 U CN2011204585406 U CN 2011204585406U CN 201120458540 U CN201120458540 U CN 201120458540U CN 202352485 U CN202352485 U CN 202352485U
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- photovoltaic generation
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Abstract
The utility model relates to a step-up transformer for photovoltaic power generation, which belongs to the technical field of transformers. The step-up transformer comprises iron cores, coils and clamping pieces and is characterized in that three phases of coils are arranged, and a low voltage coil and a high voltage coil are sequentially arranged on the iron core of each phase of coil from inside to outside; each low voltage coil is formed by simultaneously winding two independent coils in the radial direction; and the two independent coils are connected with two inverters respectively by leading-out terminals. The step-up transformer has the advantages of compact and simple structure, convenience in operation and maintenance, convenience and quickness in assembly, small volume, light weight, low manufacturing cost and high production efficiency, energy saving, consumption reduction and the like; and the quantity of wound coils is reduced by half.
Description
Technical field
The utility model belongs to the transformer technology field, particularly relates to a kind of photovoltaic generation and uses step-up transformer.
Background technology
At present, in photovoltaic generation and the inversion transformation technique,, must inverter output voltage be risen to through step-up transformer and can satisfy the electric pressure that is incorporated into the power networks and requires because inverter output voltage is low.Because receive the restriction of electronic component power, pv grid-connected plant generally is no more than 500kW with applied photovoltaic inversion device.So photovoltaic generation can connect two inverters by a step-up transformer with the general low pressure axis of winding splitted construction that adopt of step-up transformer simultaneously.The every phase coil of the step-up transformer of this kind structure divides two parts up and down, and every part has high-voltage coil and low-voltage coil again, and 4 coils of promptly every phase, every transformer are totally 12 coils.Exist volume big, shortcoming such as cost of manufacture is high, and production efficiency is low.
Summary of the invention
The technical problem of the utility model for existing in the solution known technology, and provide a kind of photovoltaic generation to use step-up transformer.
The purpose of the utility model provides that a kind of to have a compact conformation simple, convenient operating maintenance, and coil winding quantity reduces by half, and it is convenient to assemble, and energy-saving and cost-reducing, volume is little, and is in light weight, low cost of manufacture, the photovoltaic generation of characteristics such as production efficiency height is used step-up transformer.
The technical scheme that the utility model photovoltaic generation is taked with step-up transformer is:
A kind of photovoltaic generation is used step-up transformer, comprises iron core, coil and folder, is characterized in: coil is a three-phase, on the iron core of every phase coil, is low-voltage coil, high-tension coil from inside to outside successively; Low-voltage coil radially is wound on together by two absolute coils simultaneously; Two absolute coil difference leading-out terminals link to each other with two inverters.
The utility model photovoltaic generation can also adopt following technical measures with step-up transformer:
Described photovoltaic generation is used step-up transformer, is characterized in: transformer is dry-type transformer or oil-filled transformer.
Described photovoltaic generation is used step-up transformer, is characterized in: coil adopts copper conductor or aluminium conductor, conductor adopt paper tinsel around or lead coiling mode.
Described photovoltaic generation is used step-up transformer, is characterized in: between the conductor of two absolute coils insulating barrier is set, insulating barrier adopts lead insulation itself or cushioning insulating paper mode.
Described photovoltaic generation is used step-up transformer, is characterized in: the leading-out terminal of two absolute coils is that single face is drawn or draw on the two sides.
Described photovoltaic generation is used step-up transformer, is characterized in: add insulating cylinder between the high-voltage coil and low-voltage coil.
Described photovoltaic generation is used step-up transformer, is characterized in: there is folder every phase high-voltage coil and low-voltage coil below, and blower fan is installed on the folder.
Advantage that the utlity model has and good effect:
Photovoltaic generation owing to adopted the utility model brand-new technology scheme, compared with prior art, has had following characteristics with step-up transformer: coil winding quantity reduces half the, and the assembling of transformer is simple and convenient, has increased substantially production efficiency; Small product size is little, has reduced manufacturing cost, has practiced thrift installing space; The loss of product also has decline significantly, and energy conservation and consumption reduction effects is obvious; Product structure is simple, operation and easy to maintenance.
Description of drawings
Fig. 1 is that the utility model photovoltaic generation is used the step-up transformer structural representation;
Fig. 2 is that (the local amplification) structural representation is looked on the right side of Fig. 1;
Fig. 3 low-voltage coil plan structure sketch map;
Every circle conductor of Fig. 4 low-voltage coil and insulation system sketch map.
Among the figure, 1, iron core, 2, upper clamping piece, 3, HV Terminal, 4, lower clamping piece, 5, blower fan, 6, the pad pin, 7, high-tension coil, 8, insulating cylinder, 9, low-voltage coil, 10, low-voltage terminal, 11, Copper Foil, 12, insulating paper, 13, air flue.
Embodiment
For further understanding utility model content, characteristics and the effect of the utility model, the following examples of giving an example now also combine accompanying drawing, specify as follows:
Consult accompanying drawing 1 to Fig. 4.
Embodiment 1
A kind of photovoltaic generation is used step-up transformer, comprises iron core, coil and folder.Coil is a three-phase, on the iron core of every phase coil, is low-voltage coil, high-tension coil from inside to outside successively; Low-voltage coil radially is wound on together by two absolute coils simultaneously; Two absolute coil difference leading-out terminals link to each other with two inverters.
Transformer is dry-type transformer or oil-filled transformer.Coil adopts copper conductor, and conductor adopts paper tinsel around mode.Between the conductor of two absolute coils insulating barrier is set, insulating barrier adopts lead cushioning insulating paper mode.The leading-out terminal of two absolute coils is that single face is drawn or draw on the two sides.Add insulating cylinder between the high-voltage coil and low-voltage coil.There is folder every phase high-voltage coil and low-voltage coil below, and blower fan is installed on the folder.
The concrete structure of present embodiment is described in detail as follows:
Photovoltaic generation is used step-up transformer, shown in accompanying drawing 1 to accompanying drawing 4, comprises iron core 1, high-tension coil 7, low-voltage coil 9, folder 2, folder 4.High-tension coil 7, low-voltage coil 9 are three-phase, on the iron core 1 of every phase high-tension coil 7, low-voltage coil 9, are low-voltage coil 9, high-tension coil 7 from inside to outside successively, and low-voltage coil 9 comprises two independently coils.Between the Copper Foil 11 of two absolute coils insulating paper 12 is set.Insulating paper 12 coilings simultaneously between the Copper Foil 11 of two absolute coils reaches, the centre is provided with air flue 13, two absolute coils and forms low-voltage coil 9 together.Two independently coil respectively 10, two groups of terminals 10 of leading-out terminal link to each other with two inverters respectively.The capacity of high-tension coil 7 is low pressure two absolute coil capacity sums.Between high-tension coil 7, the low-voltage coil 9 insulating cylinder 8 is set.On every phase high-tension coil 7, the low-voltage coil 9 below folders blower fan 5 is installed.
Present embodiment is every to have only two coils mutually, and every transformer is totally 6 coils, can realize that a transformer connects two inverters simultaneously, and it is little, in light weight to have a volume, and production efficiency is high, and cost of manufacture is low, and compact conformation is simple, uses advantages such as easy to maintenance.
Claims (7)
1. a photovoltaic generation is used step-up transformer, comprises iron core, coil and folder, it is characterized in that: coil is a three-phase, on the iron core of every phase coil, is low-voltage coil, high-tension coil from inside to outside successively; Low-voltage coil radially is wound on together by two absolute coils simultaneously; Two absolute coil difference leading-out terminals link to each other with two inverters.
2. use step-up transformer according to the described photovoltaic generation of claim 1, it is characterized in that: transformer is dry-type transformer or oil-filled transformer.
3. use step-up transformer according to the described photovoltaic generation of claim 1, it is characterized in that: coil adopts copper conductor or aluminium conductor, conductor adopt paper tinsel around or lead coiling mode.
4. use step-up transformer according to the described photovoltaic generation of claim 1, it is characterized in that: between the conductor of two absolute coils insulating barrier is set, insulating barrier adopts lead insulation itself or cushioning insulating paper mode.
5. use step-up transformer according to claim 1 or 4 described photovoltaic generations, it is characterized in that: the leading-out terminal of two absolute coils is that single face is drawn or draw on the two sides.
6. use step-up transformer according to the described photovoltaic generation of claim 1, it is characterized in that: add insulating cylinder between the high-voltage coil and low-voltage coil.
7. use step-up transformer according to the described photovoltaic generation of claim 1, it is characterized in that: there is folder every phase high-voltage coil and low-voltage coil below, and blower fan is installed on the folder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204585406U CN202352485U (en) | 2011-11-18 | 2011-11-18 | Step-up transformer for photovoltaic power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204585406U CN202352485U (en) | 2011-11-18 | 2011-11-18 | Step-up transformer for photovoltaic power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202352485U true CN202352485U (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204585406U Expired - Lifetime CN202352485U (en) | 2011-11-18 | 2011-11-18 | Step-up transformer for photovoltaic power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202352485U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360832A (en) * | 2011-11-18 | 2012-02-22 | 天津市特变电工变压器有限公司 | Boosting transformer for photovoltaic power generation |
-
2011
- 2011-11-18 CN CN2011204585406U patent/CN202352485U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360832A (en) * | 2011-11-18 | 2012-02-22 | 天津市特变电工变压器有限公司 | Boosting transformer for photovoltaic power generation |
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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 |
Granted publication date: 20120725 |
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| CX01 | Expiry of patent term |