CN205264469U - Novel transformer for photovoltaic power generation - Google Patents
Novel transformer for photovoltaic power generation Download PDFInfo
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- CN205264469U CN205264469U CN201521032289.1U CN201521032289U CN205264469U CN 205264469 U CN205264469 U CN 205264469U CN 201521032289 U CN201521032289 U CN 201521032289U CN 205264469 U CN205264469 U CN 205264469U
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Abstract
The utility model discloses a novel transformer for photovoltaic power generation, transformer ware body contain iron core, high voltage winding and low voltage winding, and the iron core adopts 45 3 step -by -step piles of three -limb three phase, and high voltage winding adopts segmentation drum laminar structure, divide into first section winding and second section winding, low voltage winding is two voltages, adopts the paper tinsel around crossing coiling structure, divide into mutually independent a1 winding and a2 winding. The utility model discloses filling coefficient is high, endures the impact, and the coupling is very good, performance safe and reliable.
Description
Technical field
The utility model relates to a kind of power transformer.
Background technology
Photovoltaic generation, as a kind of new production of energy mode, is at home and abroad developed rapidly. Existing photovoltaic generation transformer, is generally dual-winding double-splitting structure; High pressure adopts 35kV and is connected with electrical network, and 35kV level product, because voltage is higher, requires winding to have good electric property, and lightning impulse performance etc., have proposed higher performance requirement to transformer.
Summary of the invention
For ensureing that 35kV photovoltaic generation has good electric property with transformer, the utility model provides a kind of novel 35kV photovoltaic generation transformer, and its technical scheme of taking is:
Comprise fuel tank and be located at the transformer body in fuel tank, transformer body comprises iron core, high pressure winding and low pressure winding, iron core adopts the folded three-phase three-limb of 45 ° of three stepping, high pressure winding adopts subsection cylindrical layered structure, be divided into upper semisection winding and lower semisection winding, they be left around to, the second tap is lifted one's head, the 4th tap is lifted one's head and the 6th tap is lifted one's head and lifted one's head at upper semisection winding skin, the 3rd tap is lifted one's head, the 5th tap is lifted one's head and the 7th tap is lifted one's head and lifted one's head at lower semisection winding internal layer; Low pressure winding is two voltages, adopt paper tinsel around staggered form winding structure, be divided into separate a1 winding and a2 winding, a1 winding is formed by winding I and the coiling of winding IV, winding I and winding IV connect by copper bar, a2 winding is formed by winding II and the coiling of winding III, and winding II and winding III connect by copper bar, and each winding is equipped with oil duct.
The advantages such as the high pressure winding of this transformer adopts segmented layered structure, can reduce voltage between layers, has activity coefficient high, and impact property is good; Low pressure winding adopts paper tinsel around staggered form winding structure, and low-voltage coil does not need axial split, and coupling is very good, the reliable feature of performance safety; Iron core adopts the folded three-phase three-limb of 45 ° of three stepping, has the advantages such as open circuit loss is low.
Brief description of the drawings
Fig. 1 is the structural representation of high pressure winding;
Fig. 2 is the structural representation of low pressure winding.
Fig. 3 is the connection schematic diagram of low pressure winding.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
High pressure winding of the present invention as shown in Figure 1, high pressure winding adopts subsection cylindrical layered structure, be divided into upper semisection winding 1 and lower semisection winding 2, they be left around to, the second tap lifts one's head 3, the 4th tap is lifted one's head and is lifted one's head and lift one's head at the skin of upper semisection winding 1 with the 6th tap, the 3rd tap lifts one's head 4, the 5th tap is lifted one's head and is lifted one's head and lift one's head at the internal layer of lower semisection winding 2 with the 7th tap, ensure the good ampere-turn equilibrium of coil, two sections winding is connected by shunting switch aspect electric, this structure can reduce voltage between layers, coil inside Electric Field Distribution is more even, activity coefficient is high, impact property is good.
As shown in Figures 2 and 3, low pressure winding is two voltages, adopt paper tinsel around staggered form winding structure, be divided into separate a1 winding and a2 winding, a1 winding is formed by winding I 5 and 6 coilings of winding IV, winding I 5 and winding IV 6 connect by copper bar 9, a2 winding is formed by winding II 7 and 8 coilings of winding III, and winding II 7 and winding III 8 connect by copper bar 9, and each winding is equipped with oil duct, both increase the area of dissipation of winding, strengthened again the dielectric strength between winding. This structure winding is avoided traditional axial split, and coupling is very good, and performance safety is reliable.
Claims (1)
1. a Novel photovoltaic generating transformer, comprise fuel tank and be located at the transformer body in fuel tank, it is characterized in that: transformer body comprises iron core, high pressure winding and low pressure winding, iron core adopts the folded three-phase three-limb of 45 ° of three stepping, high pressure winding adopts subsection cylindrical layered structure, be divided into upper semisection winding and lower semisection winding, they be left around to, the second tap is lifted one's head, the 4th tap is lifted one's head and the 6th tap is lifted one's head and lifted one's head at upper semisection winding skin, and the 3rd tap is lifted one's head, the 5th tap is lifted one's head and the 7th tap is lifted one's head and lifted one's head at lower semisection winding internal layer; Low pressure winding is two voltages, adopt paper tinsel around staggered form winding structure, be divided into separate a1 winding and a2 winding, a1 winding is formed by winding I and the coiling of winding IV, winding I and winding IV connect by copper bar, a2 winding is formed by winding II and the coiling of winding III, and winding II and winding III connect by copper bar, and each winding is equipped with oil duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521032289.1U CN205264469U (en) | 2015-12-14 | 2015-12-14 | Novel transformer for photovoltaic power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521032289.1U CN205264469U (en) | 2015-12-14 | 2015-12-14 | Novel transformer for photovoltaic power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205264469U true CN205264469U (en) | 2016-05-25 |
Family
ID=56005985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521032289.1U Expired - Fee Related CN205264469U (en) | 2015-12-14 | 2015-12-14 | Novel transformer for photovoltaic power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205264469U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112071582A (en) * | 2019-06-10 | 2020-12-11 | 特变电工沈阳变压器集团有限公司 | Novel switching reactor with coil structure |
-
2015
- 2015-12-14 CN CN201521032289.1U patent/CN205264469U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112071582A (en) * | 2019-06-10 | 2020-12-11 | 特变电工沈阳变压器集团有限公司 | Novel switching reactor with coil structure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20181214 |