CN102593741B - Combined type transformer for photovoltaic power generation - Google Patents
Combined type transformer for photovoltaic power generation Download PDFInfo
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- CN102593741B CN102593741B CN201210061746.4A CN201210061746A CN102593741B CN 102593741 B CN102593741 B CN 102593741B CN 201210061746 A CN201210061746 A CN 201210061746A CN 102593741 B CN102593741 B CN 102593741B
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Abstract
The invention discloses a combined type transformer for photovoltaic power generation. The combined type transformer comprises a transformer oil tank, a high-voltage cable chamber, a high-voltage operation chamber and a low-voltage operation chamber; the transformer oil tank is internally provided with an axial double split type three-phase transformer, a high-voltage load switch and a tapping switch; the low-voltage operation chamber is internally provided with a low-voltage switch cabinet; and the high-voltage cable chamber is provided with a high-voltage fuse. According to the invention, an oil immersion insertion type high-voltage fuse which has large volume of outline and is convenient to maintain in an original transformer oil tank is omitted, and the external high-voltage fuse is adopted to effectively reduce inner space of the oil tank and reduce inner oil consumption and corresponding high-voltage connecting wires; and meanwhile, the axial double split type three-phase transformer is adopted to realize that one combined type transformer can perform voltage class transformation on two photovoltaic power generators at the same time, thus, the installation space is saved, the cost is reduced, and the safety normal operation of a power grid and equipment is guaranteed.
Description
Technical field
The invention belongs to design of transformer manufacturing technology field, be specifically related to a kind of combined type transformer for photovoltaic generation.
Background technology
Combined type transformer for photovoltaic generation is for photovoltaic generator outlet side, by voltage from the electric equipment be connected to the grid after low pressure rises to high pressure; Access main transformer after voltage being boosted to 35KV by 0.27KV as the combined type transformer for photovoltaic generation of 35KV or be connected to the grid.
Publication number is that the Chinese patent of CN102360832A discloses a kind of boosting transformer for photovoltaic power generation, and this transformer comprises iron core, coil and folder, and coil is 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 is wound on together by two absolute coil radial directions simultaneously.This kind of Special transformer for photovoltaic power generation can only carry out electric pressure conversion to separate unit photovoltaic generator; And China's photovoltaic generation industry is fast-developing, photovoltaic generation scale constantly increases, and therefore develops to carry out electric pressure conversion and the combined transformer that can normally run to two or multiple stage photovoltaic generator, will have good using value.
In addition, domestic existing combined type transformer for photovoltaic generation, because requiring that installation high-voltage fuse is protected equipment, adopts oil immersion plug-in type high-tension fuse to realize this function usually; This high-tension fuse length is comparatively large simultaneously, and make fuel tank volume increase like this, fuel tank internal space must fill transformer oil, and applying oil mass mutually greatly increases; Use oil immersion plug-in type high-tension fuse also can bring not easily to seal, overhaul, safeguard that replacing requires the problems such as overlong time.
Summary of the invention
For the above-mentioned technological deficiency existing for prior art, the invention provides a kind of combined type transformer for photovoltaic generation, adopt external high-tension fuse and axial direction double bundle formula three-phase transformer, effective minimizing fuel tank internal space and fuel consumption, and electric pressure conversion can be carried out to two photovoltaic generators.
A kind of combined type transformer for photovoltaic generation, comprises oil tank of transformer; Described oil tank of transformer one side is provided with high-tension cable room, before be provided with operation with high pressure room and low voltage operated room;
The high voltage load switch being provided with axial direction double bundle formula three-phase transformer in described oil tank of transformer and be connected with the high-pressure side of axial direction double bundle formula three-phase transformer and shunting switch; The low-pressure side of described axial direction double bundle formula three-phase transformer has two groups of three-phase ports, and described high voltage load switch and the operating side of shunting switch are all positioned at operation with high pressure indoor;
Described low voltage operated indoor are provided with two low-tension switch cabinets, and two low-tension switch cabinets are connected with two groups of three-phase ports of the low-pressure side of axial direction double bundle formula three-phase transformer respectively by low-tension bushing;
Described high-tension cable indoor are provided with three high-tension fuses, and one end of described high-tension fuse is connected with high voltage load switch by bushing.
Preferably, the other end of described high-tension fuse is connected with high-voltage arrester, and described high-voltage arrester is positioned at high-tension cable indoor; Equipment harm from instantaneous overvoltage under thunder and lightning weather can be made.
Preferably, the other end of described high-tension fuse is connected with high pressure sensor, and described high pressure sensor is positioned at high-tension cable indoor; Three-phase signal can be provided for other equipment.
Preferably, described oil tank of transformer another side and be equipped with gilled radiator below; The heat dispersion of transformer can be ensured.
Preferably, a casing is respectively made in described high-tension cable room, operation with high pressure room and low voltage operated room, and is connected in aggregates with oil tank of transformer by bolt; Compact conformation, good looking appearance.
Described high-tension fuse is air-insulated type high-tension fuse.
Two described integral cabinets of low-tension switch cabinet parallel operation.
Present invention eliminates the former oil tank of transformer oil immersion plug-in type high-tension fuse that inside and outside annular volume is large, maintenance is inconvenient, adopt external high-tension fuse, can effectively reduce fuel tank internal space, decrease inner fuel consumption and corresponding high-pressure connection line, the work such as maintenance, replacing are simplified, and accelerate the speed of maintenance, there is dependable performance, the advantages such as production cost is low, use safety, easy to maintenance; The present invention simultaneously adopts axial direction double bundle formula three-phase transformer, can realize a combined transformer and carry out electric pressure conversion to two photovoltaic generators simultaneously, save installing space, reduce cost, ensure that the safety of electrical network and equipment is normal and runs.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the sectional view of Fig. 1 along AA ' direction.
Embodiment
In order to more specifically describe the present invention, below in conjunction with the drawings and the specific embodiments, technical scheme of the present invention is described in detail.
As depicted in figs. 1 and 2, a kind of combined type transformer for photovoltaic generation, comprises oil tank of transformer 1; Oil tank of transformer 1 left surface is provided with high-tension cable room 2, and leading flank is provided with operation with high pressure room 3 and low voltage operated room 4; A casing is respectively made in high-tension cable room 2, operation with high pressure room 3 and low voltage operated room 4, and is connected in aggregates by bolt with oil tank of transformer 1.
The high voltage load switch 6 being provided with axial direction double bundle formula three-phase transformer 5 in oil tank of transformer 1 and be connected with the high-pressure side of axial direction double bundle formula three-phase transformer 5 and shunting switch 7; The low-pressure side of axial direction double bundle formula three-phase transformer 5 has two groups of three-phase ports, and is marked with the transformer oil of regulation in oil tank of transformer 1.
The operating grip of high voltage load switch 6 and shunting switch 7 is all positioned at operation with high pressure room 3; In the present embodiment, the model that high voltage load switch 6 adopts is BFY3I2-35/630 (Zhejiang San Men rises imperial electrical equipment), and the model that shunting switch 7 adopts is WST II I 63/35-5X5 (Zhejiang San Men rises imperial electrical equipment).
Two low-tension switch cabinets 9 and six low-tension bushings 8 are provided with in low voltage operated room 4; Two low-tension switch cabinets 9 are respectively connected with two groups of three-phase ports of the low-pressure side of axial direction double bundle formula three-phase transformer 5 respectively by three low-tension bushings 8; In the present embodiment, the model that low-tension bushing 8 adopts is YB-1000 (Ningbo Tian An), the integral cabinet of two low-tension switch cabinets 9 parallel operation.
Three bushings, 10, three high pressure sensors, 13, three air-insulated type high-tension fuses 12 and three high-voltage arresters 14 are provided with in high-tension cable room 2; One end of bushing 10 is connected with high voltage load switch 6, and the other end is connected with one end of air-insulated type high-tension fuse 12, and the other end of air-insulated type high-tension fuse 12 is connected with corresponding three-phase high-voltage cable by busbar 15; High-voltage arrester 14 one end is connected with the other end of air-insulated type high-tension fuse 12, other end ground connection; One end of high pressure sensor 13 is connected with the other end of air-insulated type high-tension fuse 12, other end ground connection; In the present embodiment, the model that bushing 10 adopts is ZGS/ZF-40.5 (Ningbo Tian An), the model that air-insulated type high-tension fuse 12 adopts is XRN-40.5/40A (F) (Xi'an Si Taide), the model that high pressure sensor 13 adopts is CG-40.5 (Ningbo Tian An), and the model that high-voltage arrester 14 adopts is HY5WZ-51/134 (Ningbo Tian An).
Oil tank of transformer 1 right flank is provided with a gilled radiator 11, and trailing flank is provided with three gilled radiators 11; In the present embodiment, the model that gilled radiator 11 adopts is PG-9/310 (the auspicious enlightening in Changzhou).
Two low pressure photovoltaic generators are connected with two low-tension switch cabinets 9 respectively, after electricity sends from photovoltaic generator, the low-pressure side of three-phase transformer 5 is arrived through low-tension switch cabinet 9 and low-tension bushing 8, the electric pressure of electricity exports from high-pressure side by three-phase transformer 5 after 0.27KV boosts to 35KV, successively through high voltage load switch 6, bushing 10, high-tension fuse 12, be connected to the grid finally by high-tension cable.
Claims (1)
1. a combined type transformer for photovoltaic generation, comprises oil tank of transformer (1); It is characterized in that: described oil tank of transformer (1) side is provided with high-tension cable room (2), before be provided with operation with high pressure room (3) and low voltage operated room (4);
The high voltage load switch (6) being provided with axial direction double bundle formula three-phase transformer (5) in described oil tank of transformer (1) and be connected with the high-pressure side of axial direction double bundle formula three-phase transformer (5) and shunting switch (7); Described high voltage load switch (6) and the operating side of shunting switch (7) are all positioned at operation with high pressure room (3);
Be provided with two low-tension switch cabinets (9) in described low voltage operated room (4), two low-tension switch cabinets (9) are connected with two groups of three-phase ports of the low-pressure side of axial direction double bundle formula three-phase transformer (5) respectively by low-tension bushing (8);
Be provided with three high-tension fuses (12) in described high-tension cable room (2), one end of described high-tension fuse (12) is connected with high voltage load switch (6) by bushing (10);
The other end of described high-tension fuse (12) is connected with high-voltage arrester (14) and high pressure sensor (13), and described high-voltage arrester (14) and high pressure sensor (13) are all positioned at high-tension cable room (2); Described oil tank of transformer (1) another side and be equipped with gilled radiator (11) below;
Described high-tension cable room (2), operation with high pressure room (3) and low voltage operated room (4) are respectively made a casing, and are connected in aggregates by bolt with oil tank of transformer (1); Two described integral cabinets of low-tension switch cabinet (9) parallel operation; Described high-tension fuse (12) is air-insulated type high-tension fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210061746.4A CN102593741B (en) | 2012-03-09 | 2012-03-09 | Combined type transformer for photovoltaic power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210061746.4A CN102593741B (en) | 2012-03-09 | 2012-03-09 | Combined type transformer for photovoltaic power generation |
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| Publication Number | Publication Date |
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| CN102593741A CN102593741A (en) | 2012-07-18 |
| CN102593741B true CN102593741B (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210061746.4A Active CN102593741B (en) | 2012-03-09 | 2012-03-09 | Combined type transformer for photovoltaic power generation |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023031B (en) * | 2013-01-07 | 2015-01-07 | 王财勇 | Low-voltage six-phase power distribution system |
| CN103972811B (en) * | 2014-04-23 | 2016-04-20 | 宁波耐森电气科技有限公司 | A kind of gas-filled type combined electrical apparatus cabinet |
| CN104051972B (en) * | 2014-06-20 | 2016-05-11 | 国家电网公司 | A kind of 35kV combined transformer for photovoltaic generation |
| CN104319640B (en) * | 2014-11-12 | 2017-06-30 | 江苏东源电器集团股份有限公司 | Intelligent solar photovoltaic case becomes |
| CN107863237B (en) * | 2017-11-11 | 2023-10-20 | 河南森源电气股份有限公司 | Combined transformer |
| CN109411218A (en) * | 2018-12-21 | 2019-03-01 | 海南金盘智能科技股份有限公司 | Transformer group |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2821962Y (en) * | 2005-06-11 | 2006-09-27 | 虞志华 | Box type converting station |
| KR100876586B1 (en) * | 2008-08-13 | 2008-12-31 | 대원계전주식회사 | Metal-clad compartment and air-insulated compact panel |
| CN201383411Y (en) * | 2009-02-26 | 2010-01-13 | 山东泰开箱变有限公司 | Perfect combined type transformer for wind power generation |
| CN201374514Y (en) * | 2009-03-07 | 2009-12-30 | 山东泰开箱变有限公司 | Functional type wind power combined box substation structured like a Chinese character 'pin' |
| CN201708029U (en) * | 2010-05-28 | 2011-01-12 | 山东泰开箱变有限公司 | Special transformer for photovoltaic power generation |
| CN202488012U (en) * | 2012-03-09 | 2012-10-10 | 宁波天安（集团）股份有限公司 | Combined transformer for photovoltaic power generation |
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| CN102593741A (en) | 2012-07-18 |
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