CN215644007U - 220kV traction transformer boss formula oil tank structure - Google Patents
220kV traction transformer boss formula oil tank structure Download PDFInfo
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- CN215644007U CN215644007U CN202121324894.1U CN202121324894U CN215644007U CN 215644007 U CN215644007 U CN 215644007U CN 202121324894 U CN202121324894 U CN 202121324894U CN 215644007 U CN215644007 U CN 215644007U
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Abstract
The utility model discloses a boss type oil tank structure of a 220kV traction transformer, which comprises an oil tank shell, wherein a 220kV high-voltage pipe sleeve is arranged in the oil tank shell, a voltage-sharing ball is arranged at the lower end of the 220kV high-voltage pipe sleeve, a 220kV high-voltage non-excitation voltage-regulating switch is also arranged in the oil tank shell, bosses are arranged on the oil tank shell below the voltage-sharing ball and the 220kV high-voltage non-excitation voltage-regulating switch, the bosses protrude outwards, and the positions of the bosses correspond to the positions of the voltage-sharing ball and the 220kV high-voltage non-excitation voltage-regulating switch one by one. The boss type oil tank structure of the 220kV traction transformer can ensure the safe insulation distance from the voltage-sharing ball at the lower end of the 220kV high-voltage sleeve and the 220kV high-voltage non-excitation voltage-regulating switch to the inner wall of the high-voltage side of the oil tank, reduce the using amount of transformer oil in the oil tank and reduce the weight and the cost of the transformer. Compared with the oil tank with a plane structure, the middle boss of the oil tank has the function of reinforcing ribs on the oil tank, so that the oil tank has stronger mechanical strength.
Description
Technical Field
The utility model relates to a boss type oil tank structure of a 220kV traction transformer.
Background
The power supply of the electrified railway generally adopts the voltage of 110kV and above, and with the continuous development of the power technology, a 220kV power supply system has higher stability and reliability, so the power supply is widely applied to high-speed railways or heavy haul railways. In the prior art, the 220kV traction transformer has the advantages that voltage breakdown of the inner wall of the high-voltage side of the oil tank is avoided due to the fact that a voltage equalizing ball at the lower end of a 220kV high-voltage sleeve and a 220kV high-voltage non-excitation voltage regulating switch are arranged on the inner wall of the high-voltage side of the oil tank, the width of the inner wall of the high-voltage side of the oil tank needs to ensure the safe insulation distance of the voltage equalizing ball and the 220kV high-voltage non-excitation voltage regulating switch on the inner wall of the high-voltage side of the oil tank, and most of the existing oil tanks are of planar structures.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects of the prior art and provides a boss type oil tank structure of a 220kV traction transformer.
The utility model provides a 220kV traction transformer boss formula oil tank structure, includes the oil tank casing, is equipped with 220kV high-pressure pipe box in the oil tank casing, and the lower extreme of 220kV high-pressure pipe box is equipped with the voltage-sharing ball, still is equipped with the high-pressure no excitation voltage regulating switch of 220kV in the oil tank casing, is equipped with the boss on the oil tank casing of voltage-sharing ball and the high-pressure no excitation voltage regulating switch below of 220kV, the boss outwards protruding, the position of boss and voltage-sharing ball, the high-pressure no position one-to-one that excites voltage regulating switch of 220 kV.
As a further improvement, the shape of the boss is isosceles trapezoid.
As a further improvement, the safe insulation distance between the voltage-sharing ball and the 220kV high-voltage non-excitation voltage-regulating switch and the oil tank shell is B1, and the distances between the lower surface of the boss and the voltage-sharing ball and the 220kV high-voltage non-excitation voltage-regulating switch are all larger than or equal to B1.
As a further improvement, the boss is formed by punching and molding a plane plate.
Has the advantages that:
the boss type oil tank structure of the 220kV traction transformer can ensure the safe insulation distance from the voltage-sharing ball at the lower end of the 220kV high-voltage sleeve and the 220kV high-voltage non-excitation voltage-regulating switch to the inner wall of the high-voltage side of the oil tank, reduce the using amount of transformer oil in the oil tank and reduce the weight and the cost of the transformer. Compared with the oil tank with a plane structure, the middle boss of the oil tank has the function of reinforcing ribs on the oil tank, so that the oil tank has stronger mechanical strength.
Drawings
FIG. 1 is a schematic structural view of a prior art oil tank of a planar structure;
FIG. 2 is a schematic view of a boss-type fuel tank;
1. a voltage-equalizing ball 2.220kV high-voltage non-excitation voltage-regulating switch.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
As shown in FIG. 2, a boss type oil tank structure of a 220kV traction transformer comprises a voltage-sharing ball 1 and a 220kV high-voltage non-excitation voltage-regulating switch.
The utility model provides a 220kV traction transformer boss formula oil tank structure, includes the oil tank casing, is equipped with 220kV high-pressure pipe box in the oil tank casing, and the lower extreme of 220kV high-pressure pipe box is equipped with the voltage-sharing ball, still is equipped with the high-pressure no excitation voltage regulating switch of 220kV in the oil tank casing, is equipped with the boss on the oil tank casing of voltage-sharing ball and the high-pressure no excitation voltage regulating switch below of 220kV, the boss outwards protruding, the position of boss and voltage-sharing ball, the high-pressure no position one-to-one that excites voltage regulating switch of 220 kV.
Wherein, the shape of boss be isosceles trapezoid.
The safe insulation distance between the voltage-equalizing ball and the 220kV high-voltage non-excitation voltage-regulating switch and the oil tank shell is B1, and the distances between the lower surface of the boss and the voltage-equalizing ball and the 220kV high-voltage non-excitation voltage-regulating switch are both more than or equal to B1.
Wherein, the boss is formed by punching a plane plate.
The heavy stamping machine tool is utilized, the plane plate is pressed into a boss type structure oil tank with a boss at the position of the 220kV high-voltage bushing and the 220kV high-voltage non-excitation voltage regulating switch corresponding to the plane plate at the high-voltage side, the boss protrudes outwards at the position of the 220kV high-voltage bushing and the 220kV high-voltage non-excitation voltage regulating switch corresponding to the oil tank, and the width of the oil tank at the boss position ensures the safe insulation distance of a voltage-equalizing ball at the lower end of the 220kV high-voltage bushing and the voltage regulating switch to the inner wall of the high-voltage side of the oil tank. The width of the oil tank at the part where the oil tank does not protrude outwards is smaller than that of the boss part, so that the internal volume of the oil tank is smaller than that of the traditional planar structure oil tank under the condition of the same safe insulation distance, and the using amount of transformer oil is reduced. Meanwhile, the convex boss in the oil tank has the function of reinforcing ribs for the oil tank, so that the oil tank has stronger mechanical strength.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. The utility model provides a 220kV traction transformer boss formula oil tank structure, its characterized in that, includes the oil tank casing, is equipped with 220kV high-pressure pipe box in the oil tank casing, and the lower extreme of 220kV high-pressure pipe box is equipped with the voltage-sharing ball, still is equipped with the high-pressure no excitation voltage regulating switch of 220kV in the oil tank casing, is equipped with the boss on the oil tank casing of voltage-sharing ball and the high-pressure no excitation voltage regulating switch below of 220kV, the outside arch of boss, the position of boss and voltage-sharing ball, the high-pressure no excitation voltage regulating switch's of 220kV position one-to-one.
2. The 220kV traction transformer boss type oil tank structure as claimed in claim 1, wherein the boss is in the shape of an isosceles trapezoid.
3. The 220kV traction transformer boss type oil tank structure as claimed in claim 1, wherein the safe insulation distance between the voltage-equalizing ball and the 220kV high-voltage non-excitation voltage-regulating switch and the oil tank shell is B1, and the distances between the lower surface of the boss and the voltage-equalizing ball and the 220kV high-voltage non-excitation voltage-regulating switch are both greater than or equal to B1.
4. The 220kV traction transformer boss type oil tank structure as claimed in claim 1, wherein the boss is formed by punching a plane plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121324894.1U CN215644007U (en) | 2021-06-15 | 2021-06-15 | 220kV traction transformer boss formula oil tank structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121324894.1U CN215644007U (en) | 2021-06-15 | 2021-06-15 | 220kV traction transformer boss formula oil tank structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215644007U true CN215644007U (en) | 2022-01-25 |
Family
ID=79943503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121324894.1U Active CN215644007U (en) | 2021-06-15 | 2021-06-15 | 220kV traction transformer boss formula oil tank structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215644007U (en) |
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2021
- 2021-06-15 CN CN202121324894.1U patent/CN215644007U/en active Active
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