CN212062070U - 10kV three-phase oil-immersed on-load capacity-regulating distribution transformer - Google Patents
10kV three-phase oil-immersed on-load capacity-regulating distribution transformer Download PDFInfo
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- CN212062070U CN212062070U CN202020817876.6U CN202020817876U CN212062070U CN 212062070 U CN212062070 U CN 212062070U CN 202020817876 U CN202020817876 U CN 202020817876U CN 212062070 U CN212062070 U CN 212062070U
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Abstract
The utility model discloses a 10kV three-phase oil-immersed type has to carry to transfer and holds distribution transformer, including the distribution transformer body, the distribution transformer body includes the oil tank, the mount pad, the iron core, the case lid, high-tension coil and low-voltage coil, and the oil tank is fixed on the mount pad, and the iron core is fixed at the oil tank inner chamber, iron core one side winding high-tension coil, iron core opposite side winding low-voltage coil, and the case lid is installed at the oil tank up end, installs high-tension bushing, low-voltage bushing and zero line sleeve pipe on the case lid, installs the controller in the mount pad, still including carrying to transfer to hold switch and developments and transfer to hold the controller, the utility model discloses structural design is novel, and stability is good, has the automatic capacity regulation of carrying out of actual load size according to distribution transformer, thoroughly solves the.
Description
Technical Field
The utility model relates to a distribution transformer technical field specifically is a 10kV three-phase oil-immersed type has to carry and transfers appearance distribution transformer.
Background
The oil immersed transformer mainly comprises an iron core, a winding, an oil tank, an oil conservator, an insulating sleeve, a tap switch, a gas relay and the like, wherein the iron core and a winding are completely immersed in transformer oil, the transformer oil plays roles of insulation and cooling, and the oil conservator of the transformer is generally arranged above a transformer body and can supply oil continuously by virtue of dead weight.
The distribution transformer is mainly used for rural power networks and urban distribution networks. The rural power grid load has the characteristics of strong seasonality and large difference between peak and valley of electricity, the difference between the peak and valley of the urban power grid is more obvious, and the peak and valley rotation is more frequent. However, in order to meet the demand for electricity at peak load, the transformer must be selected to be configured at maximum load. This results in the distribution transformer often operating in a light load or no load condition, resulting in a "big horse-drawn car" condition, and therefore, improvements are needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a 10kV three-phase oil-immersed type has to carry and transfers appearance distribution transformer to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a 10kV three-phase oil-immersed formula has to carry and transfers appearance distribution transformer, includes the distribution transformer body, the distribution transformer body includes oil tank, mount pad, iron core, case lid, high-voltage coil and low-voltage coil, the oil tank is fixed on the mount pad, the iron core is fixed at the oil tank inner chamber, iron core one side winding high-voltage coil, iron core opposite side winding low-voltage coil, the case lid is installed at the oil tank up end, install high-voltage bushing, low-voltage bushing and zero line sleeve pipe on the case lid, install the controller in the mount pad, still including having to carry to transfer appearance switch and developments transfer appearance controller, it installs on the case lid to have to carry to transfer appearance switch, just it links to each other with the high-voltage coil lead wire to have.
Preferably, the high-voltage coil is provided with a plurality of taps, and the taps of the high-voltage coil are connected with a binding post for adjusting the gear of the on-load magnetic-regulating switch; the on-load magnetic regulating switch is connected with the dynamic capacity regulating controller, and the dynamic capacity regulating controller realizes the capacity regulation of the distribution transformer through the on-load magnetic regulating switch.
Preferably, the iron core comprises a left core block, a right core block and a connecting block, the left core block and the right core block are symmetrically arranged on two sides of the connecting block, the left core block and the right core block are formed by stacking a plurality of E-shaped silicon steel sheets, the connecting block is formed by stacking I-shaped silicon steel sheets, notches are formed in the outer sides of the left core block and the right core block, and protruding blocks matched with the notches are arranged on two sides of the connecting block.
Preferably, the fuel tank further comprises a radiator, the radiator is installed on the outer wall of the fuel tank, the radiator comprises a radiating substrate and radiating fins, the radiating fins are welded on the surface of the radiating substrate, the radiating fins are corrugated fins, and the height of the radiating fins is 200-250 mm.
Preferably, an oil filling opening is formed in the oil tank, a transparent observation window is further arranged on the outer wall of the oil tank, and a liquid level meter is mounted on the inner side of the transparent observation window.
Preferably, the mounting seat comprises an upper seat body, a lower seat body and a connecting plate, and the upper seat body, the lower seat body and the connecting plate are fixedly connected through bolts.
Preferably, a sealing rubber ring is arranged at the joint of the tank cover and the oil tank.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses structural design is novel, and stability is good, has and to carry out capacity modulation, thoroughly solve the big horse of distribution network and draw the problem of dolly, improve advantages such as energy-conserving effect according to distribution transformer's actual load size is automatic.
(2) The utility model discloses an iron core be convenient for fix a position fixedly, and the closed assembly is inseparable, effectual reduction coercive force, iron core loss (iron loss) and magnetism ageing.
(3) The utility model discloses a radiator have that the heat dissipation effective area is big, the radiating efficiency is high, the advantage that the heat transfer is high, improved distribution transformer's radiating efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the iron core structure of the present invention;
FIG. 3 is a schematic view of the heat sink of the present invention;
fig. 4 is a schematic structural diagram of the mounting seat of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a10 kV three-phase oil immersed type on-load capacity-regulating distribution transformer comprises a distribution transformer body, wherein the distribution transformer body comprises an oil tank 1, a mounting seat 2, an iron core 3, a tank cover 4, a high-voltage coil 5 and a low-voltage coil 6, the oil tank 1 is fixed on the mounting seat 2, an oil filling opening 22 is formed in the oil tank 1, a transparent observation window 23 is further arranged on the outer wall of the oil tank 1, a liquid level meter 24 is arranged on the inner side of the transparent observation window 23, and a sealing rubber ring is arranged at the joint of the tank cover 4 and the oil tank 1; iron core 3 fixes at 1 inner chamber of oil tank, 3 one side winding high tension coil 5 of iron core, 3 opposite side winding low tension coil 6 of iron core, 1 up end at the oil tank is installed to case lid 4, install high-tension bushing 7, low-tension bushing 8 and zero line sleeve pipe 9 on the case lid 4, install controller 10 in the mount pad 2, still including carrying to transfer and hold switch 11 and dynamic regulation appearance controller 12, it installs on case lid 4 to have to carry to transfer holds switch 11, just it links to each other with 5 lead wires of high tension coil to have to transfer to hold switch 11.
In the utility model, a plurality of taps are drawn out of the high-voltage coil 5, and the taps of the high-voltage coil 5 are connected with a binding post for adjusting the gear of the on-load magnetic-adjusting switch 13; the on-load magnetic regulating switch 13 is connected with the dynamic capacity regulating controller 12, and the dynamic capacity regulating controller 12 realizes the capacity regulation of the distribution transformer through the on-load magnetic regulating switch 13.
The utility model discloses in, iron core 3 includes left pellet 14, right pellet 15 and connecting block 16, left side pellet 14, 15 symmetries of right pellet set up in connecting block 16 both sides, left side pellet 14 and right pellet 15 are piled up by a plurality of E type silicon steel sheets and are formed, connecting block 16 is piled up by I type silicon steel sheets and is formed, left side pellet 14, the 15 outsides of right pellet are opened jaggedly 17, connecting block 16 both sides set up and breach 17 assorted lug 18. The utility model discloses an iron core be convenient for fix a position fixedly, and the closed assembly is inseparable, effectual reduction coercive force, iron core loss (iron loss) and magnetism ageing.
Furthermore, the utility model discloses in, still include radiator 19, radiator 19 installs at oil tank 1 outer wall, radiator 19 includes radiating basal plate 20 and radiating fin 21, radiating fin 21 welds on radiating basal plate 20 surface, radiating fin 21 adopts corrugated fin, and this radiating fin 21 highly be 200 and give other help 250 mm. The utility model discloses a radiator have that the heat dissipation effective area is big, the radiating efficiency is high, the advantage that the heat transfer is high, improved distribution transformer's radiating efficiency.
Additionally, the utility model discloses in, mount pad 2 includes upper base 25, lower base 26 and connecting plate 27, adopt bolt fixed connection between upper base 25, lower base 26 and the connecting plate 27. The mounting base is good in structural stability and convenient to detach and mount.
To sum up, the utility model discloses structural design is novel, and stability is good, has and to carry out the capacity adjustment, thoroughly solve the big horse of distribution network and draw the problem of dolly, improve advantages such as energy-conserving effect according to distribution transformer's actual load size is automatic.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a 10kV three-phase oil-immersed on-load capacity-regulating distribution transformer, includes the distribution transformer body, its characterized in that: the distribution transformer body comprises an oil tank (1), a mounting seat (2), an iron core (3), a tank cover (4), a high-voltage coil (5) and a low-voltage coil (6), the oil tank (1) is fixed on the mounting seat (2), the iron core (3) is fixed in the inner cavity of the oil tank (1), one side of the iron core (3) is wound with the high-voltage coil (5), the other side of the iron core (3) is wound with a low-voltage coil (6), the box cover (4) is arranged on the upper end surface of the oil tank (1), a high-voltage sleeve (7), a low-voltage sleeve (8) and a zero line sleeve (9) are arranged on the box cover (4), the mounting seat (2) is internally provided with a controller (10), and also comprises an on-load capacity-regulating switch (11) and a dynamic capacity-regulating controller (12), the on-load capacity-regulating switch (11) is arranged on the box cover (4), and the on-load capacitance-regulating switch (11) is connected with a lead of the high-voltage coil (5).
2. The 10kV three-phase oil-immersed on-load capacity-regulating distribution transformer according to claim 1, characterized in that: the high-voltage coil (5) is provided with a plurality of taps, and the taps of the high-voltage coil (5) are connected with a binding post of a load magnetic regulating switch (13) for regulating gears; the on-load magnetic regulating switch (13) is connected with the dynamic capacity regulating controller (12), and the dynamic capacity regulating controller (12) realizes the capacity regulation of the distribution transformer through the on-load magnetic regulating switch (13).
3. The 10kV three-phase oil-immersed on-load capacity-regulating distribution transformer according to claim 1, characterized in that: the iron core (3) comprises a left core block (14), a right core block (15) and a connecting block (16), the left core block (14) and the right core block (15) are symmetrically arranged on two sides of the connecting block (16), the left core block (14) and the right core block (15) are formed by stacking a plurality of E-shaped silicon steel sheets, the connecting block (16) is formed by stacking I-shaped silicon steel sheets, notches (17) are formed in the outer sides of the left core block (14) and the right core block (15), and convex blocks (18) matched with the notches (17) are arranged on two sides of the connecting block (16).
4. The 10kV three-phase oil-immersed on-load capacity-regulating distribution transformer according to claim 1, characterized in that: the oil tank is characterized by further comprising a radiator (19), wherein the radiator (19) is installed on the outer wall of the oil tank (1), the radiator (19) comprises a radiating substrate (20) and radiating fins (21), the radiating fins (21) are welded on the surface of the radiating substrate (20), the radiating fins (21) are corrugated fins, and the height of the radiating fins (21) is 200-250 mm.
5. The 10kV three-phase oil-immersed on-load capacity-regulating distribution transformer according to claim 1, characterized in that: the oil tank is characterized in that an oil filling opening (22) is formed in the oil tank (1), a transparent observation window (23) is further arranged on the outer wall of the oil tank (1), and a liquid level meter (24) is mounted on the inner side of the transparent observation window (23).
6. The 10kV three-phase oil-immersed on-load capacity-regulating distribution transformer according to claim 1, characterized in that: the mounting seat (2) comprises an upper seat body (25), a lower seat body (26) and a connecting plate (27), wherein the upper seat body (25), the lower seat body (26) and the connecting plate (27) are fixedly connected through bolts.
7. The 10kV three-phase oil-immersed on-load capacity-regulating distribution transformer according to claim 1, characterized in that: and a sealing rubber ring is arranged at the joint of the tank cover (4) and the oil tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020817876.6U CN212062070U (en) | 2020-05-15 | 2020-05-15 | 10kV three-phase oil-immersed on-load capacity-regulating distribution transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020817876.6U CN212062070U (en) | 2020-05-15 | 2020-05-15 | 10kV three-phase oil-immersed on-load capacity-regulating distribution transformer |
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| CN212062070U true CN212062070U (en) | 2020-12-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112669662A (en) * | 2020-12-14 | 2021-04-16 | 广东电网有限责任公司 | Main transformer overhaul training platform |
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2020
- 2020-05-15 CN CN202020817876.6U patent/CN212062070U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112669662A (en) * | 2020-12-14 | 2021-04-16 | 广东电网有限责任公司 | Main transformer overhaul training platform |
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