CN202488012U - Combined transformer for photovoltaic power generation - Google Patents
Combined transformer for photovoltaic power generation Download PDFInfo
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- CN202488012U CN202488012U CN2012200884827U CN201220088482U CN202488012U CN 202488012 U CN202488012 U CN 202488012U CN 2012200884827 U CN2012200884827 U CN 2012200884827U CN 201220088482 U CN201220088482 U CN 201220088482U CN 202488012 U CN202488012 U CN 202488012U
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Abstract
The utility model discloses a combined transformer for photovoltaic power generation. The combined transformer comprises a transformer oil tank, a high voltage cable room, a high voltage operation room and a low voltage operation room, wherein an axial double-split three-phase transformer, a high voltage load switch and a tap switch are arranged in the transformer oil tank; a low voltage switch cabinet is arranged in the lower voltage operation room; and a high voltage fuse is arranged in the high voltage cable room. According to the utility model, an oil immersed plug-in type high voltage fuse with large appearance and volume and inconvenience for maintenance in the original transformer oil tank is canceled; by using an external high voltage fuse, the interior space of the oil tank can be effectively reduced and the interior oil consumption and corresponding high voltage connecting wires are reduced; meanwhile, according to the utility model, by using the axial double-split three-phase transformer, voltage level transformation can be simultaneously carried out on two photovoltaic power generators by one combined transformer, so that the mounting space is saved, the cost is reduced and safe and normal operations of a power grid and equipment are ensured.
Description
Technical field
The utility model belongs to design of transformer manufacturing technology field, is specifically related to a kind of photovoltaic generation and uses combined transformer.
Background technology
Photovoltaic generation is to be used for the photovoltaic generator outlet side with combined transformer, with the electric equipment of voltage from being connected to the grid after low pressure rises to high pressure; Voltage boosted to by 0.27KV with combined transformer like the photovoltaic generation of 35KV and to insert main transformer behind the 35KV or be connected to the grid.
Domestic existing photovoltaic generation is protected equipment because of requiring that high-tension fuse is installed with combined transformer at present, adopts oil immersion plug-in type high-tension fuse to realize this function usually; This high-tension fuse length is bigger simultaneously, and the fuel tank volume is increased, and the fuel tank internal space must fill transformer oil, and using oil mass mutually greatly increases; Use oil immersion plug-in type high-tension fuse also can bring and be difficult for sealing, overhaul, safeguard the problems such as requiring overlong time of changing.
In addition, existing photovoltaic generation generally can only carry out the electric pressure conversion to the separate unit photovoltaic generator with combined transformer; And China's photovoltaic generation industry is fast-developing, and the photovoltaic generation scale constantly increases, and therefore develops and can good using value will be arranged to two or many combined transformers that photovoltaic generator carries out the electric pressure conversion and can normally move.
Summary of the invention
To the above-mentioned technological deficiency of existing in prior technology; The utility model provides a kind of photovoltaic generation to use combined transformer; Adopt external high-tension fuse and axially two division formula three-phase transformer; Effectively reduce fuel tank internal space and fuel consumption, and can carry out the electric pressure conversion two photovoltaic generators.
A kind of photovoltaic generation is used combined transformer, comprises oil tank of transformer; Described oil tank of transformer one side is provided with the high-tension cable chamber, and the front is provided with operation with high pressure chamber and low voltage operated chamber;
The high voltage load switch and the shunting switch that are provided with axially two division formula three-phase transformers in the described oil tank of transformer and link to each other with the high-pressure side of axially two division formula three-phase transformers; The low-pressure side of described axial pair of division formula three-phase transformer has two groups of three-phase ports, and it is indoor that the operating side of described high voltage load switch and shunting switch all is positioned at operation with high pressure;
Described low voltage operated indoor two low-tension switch cabinets that are provided with, two low-tension switch cabinets link to each other with two groups of three-phase ports of the low-pressure side of axially two division formula three-phase transformers respectively through low-tension bushing;
Described high-tension cable is indoor to be provided with three high-tension fuses, and an end of described high-tension fuse links to each other with high voltage load switch through bushing.
Preferably, the other end of described high-tension fuse is connected with high-voltage arrester, and it is indoor that described high-voltage arrester is positioned at high-tension cable; Can make equipment under thunder and lightning weather, avoid the harm of instantaneous overvoltage.
Preferably, the other end of described high-tension fuse is connected with high pressure sensor, and it is indoor that described high pressure sensor is positioned at high-tension cable; Can three-phase signal be provided for other equipment.
Preferably, described oil tank of transformer another side and back are equipped with gilled radiator; Can guarantee the heat dispersion of transformer.
Preferably, a casing is respectively made in described high-tension cable chamber, operation with high pressure chamber and low voltage operated chamber, and is connected in aggregates with oil tank of transformer through bolt; Compact conformation, good looking appearance.
Described high-tension fuse is the air-insulated type high-tension fuse.
Described two low-tension switch cabinet parallel operation are integral cabinet.
The utility model has been cancelled the oil immersion plug-in type high-tension fuse that the about annular volume of former oil tank of transformer is big, safeguard inconvenience, adopts the external high-tension fuse, can effectively reduce the fuel tank internal space; Reduced inner fuel consumption and corresponding high-pressure connection line, work such as maintenance, replacing are able to simplify, and have accelerated the speed of maintenance; Has dependable performance; Advantages such as production cost is low, and is safe in utilization, easy to maintenance; The utility model adopts axially two division formula three-phase transformers simultaneously, can realize that a combined transformer carries out the electric pressure conversion to two photovoltaic generators simultaneously, has saved installing space, has reduced cost, has guaranteed that the safety of electrical network and equipment is normally moved.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the sectional view of Fig. 1 along AA ' direction.
Embodiment
In order to describe the utility model more particularly, be elaborated below in conjunction with accompanying drawing and embodiment technical scheme to the utility model.
As depicted in figs. 1 and 2, a kind of photovoltaic generation is used combined transformer, comprises oil tank of transformer 1; Oil tank of transformer 1 left surface is provided with high-tension cable chamber 2, and leading flank is provided with operation with high pressure chamber 3 and low voltage operated chamber 4; A casing is respectively made in high-tension cable chamber 2, operation with high pressure chamber 3 and low voltage operated chamber 4, and is connected in aggregates through bolt with oil tank of transformer 1.
The high voltage load switch 6 and shunting switch 7 that are provided with axially two division formula three-phase transformers 5 in the oil tank of transformer 1 and link to each other with the high-pressure side of axially two division formula three-phase transformers 5; The low-pressure side of axially two division formula three-phase transformers 5 has two groups of three-phase ports, and is marked with the transformer oil of regulation in the oil tank of transformer 1.
The operating grip of high voltage load switch 6 and shunting switch 7 all is positioned at operation with high pressure chamber 3.
Be provided with two low-tension switch cabinets 9 and six low-tension bushings 8 in the low voltage operated chamber 4; Two low-tension switch cabinets 9 respectively link to each other with two groups of three-phase ports of the low-pressure side of axially two division formula three-phase transformers 5 respectively through three low-tension bushings 8, and two low-tension switch cabinet 9 parallel operation are integral cabinet.
Be provided with three bushings 10, three high pressure sensors 13, three air-insulated type high-tension fuses 12 and three high-voltage arresters 14 in the high-tension cable chamber 2; One end of bushing 10 links to each other with high voltage load switch 6, and the other end links to each other with an end of air-insulated type high-tension fuse 12, and the other end of air-insulated type high-tension fuse 12 links to each other with corresponding three-phase high-voltage cable through busbar 15; High-voltage arrester 14 1 ends link to each other other end ground connection with the other end of air-insulated type high-tension fuse 12; One end of high pressure sensor 13 links to each other other end ground connection with the other end of air-insulated type high-tension fuse 12.
Oil tank of transformer 1 right flank is provided with a gilled radiator 11, and trailing flank is provided with three gilled radiators 11.
Two low pressure photovoltaic generators are connected with two low-tension switch cabinets 9 respectively; After electricity sends from photovoltaic generator; Through low-tension switch cabinet 9 and the low-pressure side of low-tension bushing 8 to three-phase transformer 5; Three-phase transformer 5 is exported the electric pressure of electricity after 0.27KV boosts to 35KV from the high-pressure side, through high voltage load switch 6, bushing 10, high-tension fuse 12, be connected to the grid through high-tension cable at last successively.
Claims (7)
1. a photovoltaic generation is used combined transformer, comprises oil tank of transformer (1); It is characterized in that: described oil tank of transformer (1) one side is provided with high-tension cable chamber (2), and the front is provided with operation with high pressure chamber (3) and low voltage operated chamber (4);
The high voltage load switch (6) and the shunting switch (7) that are provided with axially two division formula three-phase transformers (5) in the described oil tank of transformer (1) and link to each other with the high-pressure side of axially two division formula three-phase transformers (5); The operating side of described high voltage load switch (6) and shunting switch (7) all is positioned at operation with high pressure chamber (3);
Be provided with two low-tension switch cabinets (9) in the described low voltage operated chamber (4), two low-tension switch cabinets (9) link to each other with axial two groups of three-phase ports of the low-pressure side of two division formula three-phase transformers (5) respectively through low-tension bushing (8);
Be provided with three high-tension fuses (12) in the described high-tension cable chamber (2), an end of described high-tension fuse (12) links to each other with high voltage load switch (6) through bushing (10).
2. photovoltaic generation according to claim 1 is used combined transformer, it is characterized in that: the other end of described high-tension fuse (12) is connected with high-voltage arrester (14), and described high-voltage arrester (14) is positioned at high-tension cable chamber (2).
3. photovoltaic generation according to claim 1 is used combined transformer, it is characterized in that: the other end of described high-tension fuse (12) is connected with high pressure sensor (13), and described high pressure sensor (13) is positioned at high-tension cable chamber (2).
4. photovoltaic generation according to claim 1 is used combined transformer, it is characterized in that: described oil tank of transformer (1) another side is equipped with gilled radiator (11) with the back.
5. photovoltaic generation according to claim 1 is used combined transformer, it is characterized in that: a casing is respectively made in described high-tension cable chamber (2), operation with high pressure chamber (3) and low voltage operated chamber (4), and is connected in aggregates through bolt with oil tank of transformer (1).
6. use combined transformer according to claim 1,2 or 3 described photovoltaic generations, it is characterized in that: described high-tension fuse (12) is the air-insulated type high-tension fuse.
7. photovoltaic generation according to claim 1 is used combined transformer, it is characterized in that: described two low-tension switch cabinets (9) parallel operation is integral cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200884827U CN202488012U (en) | 2012-03-09 | 2012-03-09 | Combined transformer for photovoltaic power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200884827U CN202488012U (en) | 2012-03-09 | 2012-03-09 | Combined transformer for photovoltaic power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202488012U true CN202488012U (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200884827U Expired - Fee Related CN202488012U (en) | 2012-03-09 | 2012-03-09 | Combined transformer for photovoltaic power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202488012U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593741A (en) * | 2012-03-09 | 2012-07-18 | 宁波天安（集团）股份有限公司 | Combined type transformer for photovoltaic power generation |
| CN103414112A (en) * | 2013-08-26 | 2013-11-27 | 扬州华鼎电器有限公司 | Double-split combination type step-up voltage transformation cabinet for photovoltaic power generation |
| CN107863237A (en) * | 2017-11-11 | 2018-03-30 | 河南森源电气股份有限公司 | Combined transformer |
| CN108987043A (en) * | 2017-06-05 | 2018-12-11 | 国网上海市电力公司 | A kind of integrated type transformer |
| CN111696775A (en) * | 2020-06-11 | 2020-09-22 | 广东电网有限责任公司清远供电局 | Voltage transformer |
-
2012
- 2012-03-09 CN CN2012200884827U patent/CN202488012U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593741A (en) * | 2012-03-09 | 2012-07-18 | 宁波天安（集团）股份有限公司 | Combined type transformer for photovoltaic power generation |
| CN103414112A (en) * | 2013-08-26 | 2013-11-27 | 扬州华鼎电器有限公司 | Double-split combination type step-up voltage transformation cabinet for photovoltaic power generation |
| CN108987043A (en) * | 2017-06-05 | 2018-12-11 | 国网上海市电力公司 | A kind of integrated type transformer |
| CN108987043B (en) * | 2017-06-05 | 2020-06-05 | 国网上海市电力公司 | Integrated transformer |
| CN107863237A (en) * | 2017-11-11 | 2018-03-30 | 河南森源电气股份有限公司 | Combined transformer |
| CN107863237B (en) * | 2017-11-11 | 2023-10-20 | 河南森源电气股份有限公司 | Combined transformer |
| CN111696775A (en) * | 2020-06-11 | 2020-09-22 | 广东电网有限责任公司清远供电局 | Voltage transformer |
| CN111696775B (en) * | 2020-06-11 | 2021-10-26 | 广东电网有限责任公司清远供电局 | Voltage transformer |
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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: 20121010 Termination date: 20180309 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |