CN204596592U - A kind of photovoltaic two division winding - Google Patents
A kind of photovoltaic two division winding Download PDFInfo
- Publication number
- CN204596592U CN204596592U CN201520277422.3U CN201520277422U CN204596592U CN 204596592 U CN204596592 U CN 204596592U CN 201520277422 U CN201520277422 U CN 201520277422U CN 204596592 U CN204596592 U CN 204596592U
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- low pressure
- winding
- pressure winding
- photovoltaic
- division
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Abstract
The utility model discloses a kind of photovoltaic two division winding, comprising: the first low pressure winding, it is coated with insulating material, the first low pressure winding is wrapped up in into cylindrical shape by insulating material; Second low pressure winding, it is also coated with insulating material, second low pressure winding is wrapped up in into cylindrical shape by insulating material, the first low pressure winding and the second low pressure winding on annular core from its inner ring to outer shroud annularly iron core circumferencial direction mutually around to terminating 180 degree of coilings of staggering; High pressure winding, it is arranged on outside the first low pressure winding and the second low pressure winding, and from annular core inner ring to outer shroud annularly iron core circumferencial direction coiling; Shield winding, it is arranged on high pressure winding internal layer and between the first low pressure winding and the second low pressure winding skin, shield winding is the coiling of iron core circumferencial direction annularly.The utility model reasonable in design, improves the stability of transformer.
Description
Technical field
The utility model relates to a kind of winding, particularly relates to a kind of photovoltaic two division winding.
Background technology
The feature that the step-up transformer of photovoltaic system needs is most crucial is: two low pressure inputs, a high-voltage output end, because two-way load is identical, therefore also requires that two low pressure should be identical to the impedance voltage of high pressure.In order to meet this requirement, photovoltaic generation station local coordinate frame is designed to two Split type winding transformer mostly, and it is often made up of the low pressure winding that a high pressure winding and two voltage are all identical with capacity.Compared with conventional two winding transformer, the advantage of two Split type winding transformer is, a transformer just can obtain the multiple voltage of power station or electric substation, decreases transformer cost, operating cost and floor space.
The Split type winding structure of existing pair of Split type winding transformer has axial split and radial division two kinds, axial split wherein a low pressure short circuit in winding when, due to the imbalance of ampere-turn between low pressure winding and high pressure winding, very easily cause winding to damage.And radial splitted construction manufacturing expense is higher, and the short-circuit impedance of the corresponding respectively two groups of low pressure windings of high voltage winding group differs greatly.Do not arrange shield winding between the high-low pressure winding of two Split type winding transformer, the surge voltage of low pressure winding can be reacted to high-pressure side by electromagnetic induction, causes high voltage protective misoperation.
Utility model content
An object of the present utility model solves at least the problems referred to above and/or defect, and provide the advantage will illustrated at least below.
The technical scheme that the utility model provides is:
A kind of photovoltaic two division winding, comprising:
First low pressure winding, it is coated with insulating material, and described first low pressure winding is wrapped up in into cylindrical shape by described insulating material;
Second low pressure winding, it is also coated with insulating material, described second low pressure winding is wrapped up in into cylindrical shape by described insulating material, described first low pressure winding and described second low pressure winding on annular core from its inner ring to outer shroud along described annular core circumferencial direction mutually around to terminating 180 degree of coilings of staggering;
High pressure winding, it is arranged on outside described first low pressure winding and described second low pressure winding, and from described annular core inner ring to outer shroud along the coiling of described annular core circumferencial direction;
Shield winding, it is arranged on described high pressure winding internal layer and between described first low pressure winding and described second low pressure winding skin, described shield winding is along the coiling of described annular core circumferencial direction.
Preferably, in described photovoltaic two division winding, the cross section of described photovoltaic two division winding is annulus or elliptical ring.
Preferably, in described photovoltaic two division winding, described insulating material is insulating paper.
Preferably, in described photovoltaic two division winding, the thickness of described insulating paper is 0.1-0.5mm.
Preferably, in described photovoltaic two division winding, the insulation radius of described first low pressure winding and described second low pressure winding is equal.
Preferably, in described photovoltaic two division winding, described first low pressure winding and described second low pressure winding material are Copper Foil or aluminium foil.
Preferably, in described photovoltaic two division winding, the resistance value of described first low pressure winding and described second low pressure winding is equal with the impedance of described high pressure winding.
The utility model at least comprises following beneficial effect:
In the utility model, two low pressure windings adopt and mutually rise around to terminating to stagger 180 degree of coilings, two of transformer low pressure windings are made to have identical physical dimension, two low pressure winding low pressure output voltages of division have very high symmetry, have the very high degree of balance to the impedance of high pressure.
The utility model low pressure winding leads is simple, and the high-low pressure winding mechanical strength of transformer is high, and anti-short circuit capability is strong.
The utility model is provided with shield winding between high-low pressure winding, the noise current between high-low pressure winding can be filtered out, improve the operation stability of transformer itself and transformer load, under the prerequisite ensureing properties of product, improve production efficiency, reduce manufacturing cost, add operation stability.
High-low pressure winding of the present utility model evenly, closely encases annular core, effectively can reduce the buzz that magnetostriction causes, and the iron circuit distribution of loop configuration rationally, iron loss is very little, and iron core temperature is low, and the coil number of plies is less, the circumference of outer bag is little, good heat dissipation.
Part is embodied by explanation below by other advantage of the present utility model, target and feature, part also will by research and practice of the present utility model by those skilled in the art is understood.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first low pressure winding described in the utility model and the second low pressure winding;
Fig. 2 is the structural representation of the utility model photovoltaic two division winding.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, can implements according to this with reference to specification word to make those skilled in the art.
As shown in Fig. 1 to 2, the utility model provides a kind of photovoltaic two division winding, comprising:
First low pressure winding 1, it is coated with insulating material, and described first low pressure winding 1 is wrapped up in into cylindrical shape by described insulating material;
Second low pressure winding 2, it is also coated with insulating material, described second low pressure winding 2 is wrapped up in into cylindrical shape by described insulating material, described first low pressure winding 1 and described second low pressure winding 2 on annular core 3 from its inner ring to outer shroud along described annular core 3 circumferencial direction mutually around to terminating 180 degree of coilings of staggering; Coated insulation material on described first low pressure winding 1 and described second low pressure winding 2, can make described first low pressure winding 1 and described second low pressure winding 2 electric part separate.Described first low pressure winding 1 and described second low pressure winding 2 adopt and mutually rise around to terminating to stagger 180 degree of coilings, described first low pressure winding 1 and described second low pressure winding 2 is made to have identical physical dimension, described first low pressure winding 1 and the described second low pressure winding 2 low pressure output voltage of division have very high symmetry, have the very high degree of balance to the impedance of high pressure.
High pressure winding 5, it is arranged on outside described first low pressure winding 1 and described second low pressure winding 2, and from described annular core 3 inner ring to outer shroud along the coiling of described annular core 3 circumferencial direction;
Shield winding 4, it is arranged on described high pressure winding 5 internal layer and between described first low pressure winding 1 and described second low pressure winding 2 skin, described shield winding 4 is along the coiling of described annular core 3 circumferencial direction.Shield winding 4 is set, the noise current between high-low pressure winding can be filtered out, improve the operation stability of transformer itself and transformer load, under the prerequisite ensureing properties of product, improve production efficiency, reduce manufacturing cost, add operation stability.
In described photovoltaic two division winding, the cross section of described photovoltaic two division winding is annulus or elliptical ring.Described annular core 3 is annulus or elliptical ring, and the cross section of photovoltaic two division winding is determined according to the shape of annular core 3.
In described photovoltaic two division winding, described insulating material is insulating paper.
In described photovoltaic two division winding, the thickness of described insulating paper is 0.1-0.5mm.Described first low pressure winding 1 and described second low pressure winding 2 are all coated with insulating paper, and the thickness of insulating paper is equal, after ensureing that described first low pressure winding 1 and described second low pressure winding 2 are wound around on annular core 3, still there is identical physical dimension.
In described photovoltaic two division winding, the insulation radius of described first low pressure winding 1 and described second low pressure winding 2 is equal.
In described photovoltaic two division winding, described first low pressure winding 1 and described second low pressure winding 2 material are Copper Foil or aluminium foil.
In described photovoltaic two division winding, the resistance value of described first low pressure winding 1 and described second low pressure winding 2 is equal with the impedance of described high pressure winding 5.
Although embodiment of the present utility model is open as above, but it is not restricted to listed in specification and execution mode utilization, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend described.
Claims (7)
1. photovoltaic two division winding, is characterized in that, comprising:
First low pressure winding, it is coated with insulating material, and described first low pressure winding is wrapped up in into cylindrical shape by described insulating material;
Second low pressure winding, it is also coated with insulating material, described second low pressure winding is wrapped up in into cylindrical shape by described insulating material, described first low pressure winding and described second low pressure winding on annular core from its inner ring to outer shroud along described annular core circumferencial direction mutually around to terminating 180 degree of coilings of staggering;
High pressure winding, it is arranged on outside described first low pressure winding and described second low pressure winding, and from described annular core inner ring to outer shroud along the coiling of described annular core circumferencial direction;
Shield winding, it is arranged on described high pressure winding internal layer and between described first low pressure winding and described second low pressure winding skin, described shield winding is along the coiling of described annular core circumferencial direction.
2. photovoltaic as claimed in claim 1 two division winding, is characterized in that, the cross section of described photovoltaic two division winding is annulus or elliptical ring.
3. photovoltaic as claimed in claim 2 two division winding, it is characterized in that, described insulating material is insulating paper.
4. photovoltaic as claimed in claim 3 two division winding, it is characterized in that, the thickness of described insulating paper is 0.1-0.5mm.
5. photovoltaic as claimed in claim 4 two division winding, it is characterized in that, the insulation radius of described first low pressure winding and described second low pressure winding is equal.
6. photovoltaic as claimed in claim 5 two division winding, it is characterized in that, described first low pressure winding and described second low pressure winding material are Copper Foil or aluminium foil.
7. photovoltaic as claimed in claim 6 two division winding, it is characterized in that, the resistance value of described first low pressure winding and described second low pressure winding is equal with the impedance of described high pressure winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520277422.3U CN204596592U (en) | 2015-04-30 | 2015-04-30 | A kind of photovoltaic two division winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520277422.3U CN204596592U (en) | 2015-04-30 | 2015-04-30 | A kind of photovoltaic two division winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204596592U true CN204596592U (en) | 2015-08-26 |
Family
ID=53932720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520277422.3U Expired - Fee Related CN204596592U (en) | 2015-04-30 | 2015-04-30 | A kind of photovoltaic two division winding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204596592U (en) |
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2015
- 2015-04-30 CN CN201520277422.3U patent/CN204596592U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20180430 |
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| CF01 | Termination of patent right due to non-payment of annual fee |