CN104752030A - Oil immersion type three-dimensional triangular rolled iron core high-overload transformer - Google Patents
Oil immersion type three-dimensional triangular rolled iron core high-overload transformer Download PDFInfo
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- CN104752030A CN104752030A CN201510104260.8A CN201510104260A CN104752030A CN 104752030 A CN104752030 A CN 104752030A CN 201510104260 A CN201510104260 A CN 201510104260A CN 104752030 A CN104752030 A CN 104752030A
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Abstract
The invention discloses an oil immersion type three-dimensional triangular rolled iron core high-overload transformer. The transformer comprises a three-dimensional rolled iron core formed by splicing three identical rectangular single frames, an oil tank, a coil winding and clamping parts. The oil tank is filled with insulating liquid. The coil winding comprises a low-voltage coil and a high-voltage coil. The low-voltage coil and the high-voltage coil are wound around an iron core column of the three-dimensional rolled iron core sequentially. The clamping parts are distributed and arranged on the upper portion and the lower portion of the coil winding in a triangular shape. Heat dissipating oil channels are formed between layers of the low-voltage coil and the high-voltage coil. Diamond lattice point adhesive paper insulating layers are arranged between the upper ends and the lower ends of the low-voltage coil and the high-voltage coil and the coil layers. The effect that the transformer operates normally when loads are low and can operate safely and reliably when the loads are excessive is effectively achieved, the manufacturing cost of the transformer can be reduced, and the utilization efficiency is improved.
Description
Technical field
The present invention relates to transformer technology field, particularly relate to a kind of oil immersed type stereo-triangular wound core high overload transformer.
Background technology
Current conventional transformer can normally run under rated load, and the temperature rise at each position can meet national standard, the life-span of transformer under rated load is greatly about more than 20 years, but along with the increase of power load, the pasta and the coil temperature rise that exceed transformer during the rated load of transformer all can increase accordingly, according to 6 degree of principles of insulating material, transformer temperature rise often raises 6 DEG C, its life-span reduces half, therefore transformer substation system is when dispatching electricity consumption, guarantee that transformer works below rated load as far as possible, ensure the aging life-span of transformer with this.But the load of electrical network is widely different in different regions, big city, industrial area power consumption is large, load is high, usually all transformer can be configured according to peak load, vast rural area or electricity consumption from far-off regions are in low load levels for a long time, usually small capacity transformer is selected, but will sharply increase at festivals or holidays (particularly the Spring Festival) power consumption, conventional transformer just likely burns because of overload.Therefore be in low load for a long time based on Transformers for Rural Networks or underload transformer, there is interim long-time serious overladen present situation in occasional, has stronger overload capacity in the urgent need to transformer.
Summary of the invention
For overcoming the deficiencies in the prior art, the object of the present invention is to provide a kind of oil immersed type stereo-triangular wound core high overload transformer, efficiently solving transformer and normally run in the light hours, and can safe and reliable operation when overload.
The present invention is the technical scheme solving the employing of its technical problem:
A kind of oil immersed type stereo-triangular wound core high overload transformer, comprises the three-dimensional winding iron core be put together by three identical rectangle single frames, fuel tank, coil windings, folder, low-tension bushing, bushing, shunting switch, oil level indicator, is filled with dielectric in described fuel tank, and described three-dimensional winding iron core device, in fuel tank, described fuel tank is provided with case lid, described low-tension bushing, bushing, shunting switch, oil level indicator is arranged on case lid, described coil windings comprises low-voltage coil and high-tension coil, described low-voltage coil and high-tension coil are wound in the iron core column of three-dimensional winding iron core respectively successively, described low-tension bushing is connected with high-tension coil with low-voltage coil respectively with bushing, the arrangement triangular in shape of described folder is located at the upper and lower of coil windings, and linked into an integrated entity by screw rod, described low-voltage coil, the interlayer of high-tension coil is provided with heat radiation oil duct, and the upper and lower side of described low-voltage coil and high-tension coil and coil interlayer are provided with water chestnut lattice glue paper insulating layer.
Further, described dielectric adopts flash-point to be not less than the transformer oil of 160 degree or high burning-point insulating oil.
Further, the wire of described low-voltage coil and high-tension coil adopts the enamel covered wire of 180 grades.
Further, described fuel tank comprises at the bottom of tank wall, case edge, case and fin, and described fuel tank is connected along with case lid one by case, and be provided with sealing offset plate between described case edge and case lid, described sealing offset plate adopts fluorubber.
Further, the surfaces externally and internally of described fuel tank and case lid, folder surface are all coated with high temperature resistant paint.
Further, described low-tension bushing, bushing, be equipped with sealing ring between shunting switch and case lid, described sealing ring adopts fluorubber.
Further, described rectangle single frame is completed by some whole piece silicon steel sheets or amorphous conjunction alloy strip steel rolled stock continuous coiling.
Further, the cross section of described fuel tank and oil cap is the hexagon be connected to form by three long limits and three minor face intervals.
The invention has the beneficial effects as follows: a kind of oil immersed type stereo-triangular wound core high overload transformer that the present invention adopts, efficiently solve transformer normally to run in the light hours, and can safe and reliable operation when overload, the manufacturing cost of transformer can be reduced again simultaneously, improve its utilization ratio.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and example, the invention will be further described.
Fig. 1 is stereochemical structure partial sectional view of the present invention;
Fig. 2 is the syndeton schematic diagram of three-dimensional winding iron core of the present invention, coil windings, folder;
Fig. 3 is the structural representation of three-dimensional winding iron core of the present invention;
Fig. 4 is vertical view of the present invention;
Fig. 5 is the schematic cross-section of three-dimensional winding iron core of the present invention, low-voltage coil, high-tension coil;
Fig. 6 is the syndeton schematic diagram of fuel tank of the present invention and case lid.
Embodiment
Referring to figs. 1 through Fig. 6, a kind of oil immersed type stereo-triangular wound core high overload transformer of the present invention, comprise the three-dimensional winding iron core 1, fuel tank 5, coil windings 2, folder 3, low-tension bushing 8, bushing 7, shunting switch 9, the oil level indicator 10 that are put together by three identical rectangle single frames, described rectangle single frame closes alloy strip steel rolled stock continuous coiling by some whole piece silicon steel sheets or amorphous and completes.Be filled with dielectric in described fuel tank 5, described three-dimensional winding iron core 1 device, in fuel tank 5, described fuel tank 5 is provided with case lid 6, and described low-tension bushing 7, bushing 8, shunting switch 9, oil level indicator 10 are arranged on case lid 6.
Described coil windings 2 comprises low-voltage coil 11 and high-tension coil 12, and described low-voltage coil 11 and high-tension coil 12 are wound in the iron core column of three-dimensional winding iron core 1 respectively successively, and the wire of described low-voltage coil 11 and high-tension coil 12 adopts the enamel covered wire of 180 grades.Described low-tension bushing 8 is connected with high-tension coil 12 with low-voltage coil 11 respectively with bushing 7, and the arrangement triangular in shape of described folder 3 is located at the upper and lower of coil windings, and is linked into an integrated entity by screw rod 16.
The interlayer of described low-voltage coil 11, high-tension coil 12 is provided with heat radiation oil duct 15, effectively can improve thermal endurance class and the heat-sinking capability of coil.The upper and lower side of described low-voltage coil 11 and high-tension coil 12 and coil interlayer are provided with water chestnut lattice glue paper insulating layer 13, make the present invention have very strong overload capacity.
Described dielectric adopts flash-point to be not less than the transformer oil of 160 degree, or adopts high burning-point insulating oil, and flash-point can reach 272 degree, and then fail safe of the present invention is greatly improved.
Described fuel tank 5 comprises tank wall 18, case along 19, at the bottom of case 20 and fin 21, and described fuel tank 5 is connected with case lid 6 one along 19 by case, and the cross section of described fuel tank 5 and case lid 6 is the hexagons be connected to form by three long limits and three minor face intervals.Described case seals offset plate 22 along being provided with between 19 and case lid 6, the fluorubber that described sealing offset plate 22 adopts thermal endurance class higher, and surfaces externally and internally, the folder surface of described fuel tank 5 and case lid 6 are all coated with high temperature resistant paint, therefore, ensure that the heat-resisting ability of fuel tank 5 and the ageing resistance of sealing offset plate 22.
In addition, described low-tension bushing 8, bushing 7, be equipped with sealing ring between shunting switch 9 and case lid 10, described sealing ring adopts the fluorubber that thermal endurance class is higher equally.
The above, just preferred embodiment of the present invention, the present invention is not limited to above-mentioned execution mode, as long as it reaches technique effect of the present invention with identical means, all should belong to protection scope of the present invention.
Claims (8)
1. an oil immersed type stereo-triangular wound core high overload transformer, comprise the three-dimensional winding iron core (1) be put together by three identical rectangle single frames, fuel tank (5), coil windings (2), folder (3), low-tension bushing (8), bushing (7), shunting switch (9), oil level indicator (10), described fuel tank is filled with dielectric in (5), described three-dimensional winding iron core (1) device is in fuel tank (5), described fuel tank (5) is provided with case lid (6), described low-tension bushing (7), bushing (8), shunting switch (9), oil level indicator (10) is arranged on case lid (6), described coil windings (2) comprises low-voltage coil (11) and high-tension coil (12), described low-voltage coil (11) and high-tension coil (12) are wound in the iron core column of three-dimensional winding iron core (1) respectively successively, described low-tension bushing (8) is connected with high-tension coil (12) with low-voltage coil (11) respectively with bushing (7), described folder (3) arrangement triangular in shape is located at the upper and lower of coil windings (2), and linked into an integrated entity by screw rod (16), it is characterized in that: described low-voltage coil (11), the interlayer of high-tension coil (12) is provided with heat radiation oil duct (15), the upper and lower side of described low-voltage coil (11) and high-tension coil (12) and coil interlayer are provided with water chestnut lattice glue paper insulating layer (13).
2. a kind of oil immersed type stereo-triangular wound core high overload transformer according to claim 1, is characterized in that: described dielectric adopts flash-point to be not less than the transformer oil of 160 degree or high burning-point insulating oil.
3. a kind of oil immersed type stereo-triangular wound core high overload transformer according to claim 1, is characterized in that: the wire of described low-voltage coil (11) and high-tension coil (12) adopts the enamel covered wire of 180 grades.
4. a kind of oil immersed type stereo-triangular wound core high overload transformer according to claim 1, it is characterized in that: described fuel tank (5) comprises (20) and fin (21) at the bottom of tank wall (18), case edge (19), case, described fuel tank (5) is connected with case lid (6) one along (19) by case, described case seals offset plate (22) along being provided with between (19) and case lid (6), and described sealing offset plate (22) adopts fluorubber.
5. a kind of oil immersed type stereo-triangular wound core high overload transformer according to claim 1, is characterized in that: surfaces externally and internally, folder (3) surface of described fuel tank (5) and case lid (6) are all coated with high temperature resistant paint.
6. a kind of oil immersed type stereo-triangular wound core high overload transformer according to claim 1, it is characterized in that: described low-tension bushing (8), bushing (7), be equipped with sealing ring between shunting switch (9) and case lid (6), described sealing ring adopts fluorubber.
7. a kind of oil immersed type stereo-triangular wound core high overload transformer according to claim 1, is characterized in that: described rectangle single frame closes alloy strip steel rolled stock continuous coiling by some whole piece silicon steel sheets or amorphous and completes.
8. a kind of oil immersed type stereo-triangular wound core high overload transformer according to claim 1, is characterized in that: the cross section of described fuel tank (5) and oil cap (6) is the hexagon be connected to form by three long limits and three minor face intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510104260.8A CN104752030A (en) | 2015-03-10 | 2015-03-10 | Oil immersion type three-dimensional triangular rolled iron core high-overload transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510104260.8A CN104752030A (en) | 2015-03-10 | 2015-03-10 | Oil immersion type three-dimensional triangular rolled iron core high-overload transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104752030A true CN104752030A (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510104260.8A Pending CN104752030A (en) | 2015-03-10 | 2015-03-10 | Oil immersion type three-dimensional triangular rolled iron core high-overload transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN104752030A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024324A (en) * | 2016-07-27 | 2016-10-12 | 海鸿电气有限公司 | Assembled type clamp of three-dimensional wound core transformer |
| CN106935375A (en) * | 2015-12-29 | 2017-07-07 | 保定保菱变压器有限公司 | A kind of SF6 gas-insulated transformer |
-
2015
- 2015-03-10 CN CN201510104260.8A patent/CN104752030A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935375A (en) * | 2015-12-29 | 2017-07-07 | 保定保菱变压器有限公司 | A kind of SF6 gas-insulated transformer |
| CN106024324A (en) * | 2016-07-27 | 2016-10-12 | 海鸿电气有限公司 | Assembled type clamp of three-dimensional wound core transformer |
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Application publication date: 20150701 |