Lead ascending flanged base of transformer

Abstract

The utility model relates to a lead ascending flanged base of a transformer. The device is used for connecting a transformer and an external connecting shell and is characterized by comprising a lifting column, the lifting column is internally through in the full-length direction of the lifting column, a first flange is fixedly installed at the bottom of the lifting column, a second flange is fixedly installed at the top of the lifting column, and the first flange is connected with a third flange on the transformer through a bolt; the second flange is connected with a fourth flange on the external connecting shell through a bolt, and the bolt between the first flange and the third flange is sleeved with a spring. Thus, the spring arranged between the first flange at the bottom of the lifting column and the third flange on the transformer can adapt to the error between the first flange and the third flange, a good damping effect is achieved, damage caused by vibration between the lifting column and the transformer is avoided, and meanwhile under the action of the lifting column, the lifting column is prevented from being damaged. And the distance between the end part of the winding outgoing line and the winding in the transformer is large, so that the insulating property is good.

Description

Technical Field

[0001] The utility model relates to a transformer lead wire lifting seat, which is applicable to the technical field of transformer equipment. Background Art

[0002] Large transformers mostly use bell-shaped oil tanks. For the stability of the transformer structure and to prevent water accumulation on the top, the top of the bell-shaped oil tank is usually sloped. The medium and low voltage windings of the transformer need to be led out from the top to connect the transformer to the external connection shell so that the transformer leads can be connected to the external conductor. At present, the external connection shell is bolted or welded to the transformer tank. When there are design, manufacturing or construction errors, the connection between the external connection shell and the transformer tank is unstable, which can easily cause uneven force on the external connection shell and vibration during the operation of the transformer, which can easily cause damage to the external connection shell. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in order to solve the above technical problem, the utility model provides a lead wire raising seat of a transformer.

[0004] The technical solution adopted by the utility model is: a transformer lead wire lifting seat, used to connect the transformer with an external connection shell, characterized in that: it has a lifting column, the lifting column is penetrated along the length direction of the lifting column, the bottom of the lifting column is fixedly installed with a first flange, the top of the lifting column is fixedly installed with a second flange, the first flange is connected to the third flange on the transformer by bolts, the second flange is connected to the fourth flange on the external connection shell by bolts, and a spring is mounted on the bolts between the first flange and the third flange. In this way, the top of the lifting column is fixedly connected to the external connection shell, and the spring arranged between the first flange at the bottom of the lifting column and the third flange on the transformer can adapt to the error between the first flange and the third flange. When vibration occurs during the operation of the transformer, the spring can also play a good shock-absorbing role, avoiding damage between the lifting column and the transformer due to vibration. At the same time, under the action of the lifting column, the distance between the end of the winding lead wire and the winding inside the transformer is large, and it has good insulation.

[0005] The angle between the first flange and the horizontal plane is 5° to 35°.

[0006] The average gap between the first flange and the third flange is 5% to 10% of the diameter of the first flange.

[0007] The beneficial effects of the utility model are as follows: the utility model installs a lifting column at the outlet of the transformer so that a larger distance can be maintained between the lead wire end of the transformer inner winding and the transformer inner winding, so that the lead wire and the winding have good insulation; the first flange at the bottom of the lifting column and the third flange on the transformer are connected by bolts, and a spring is installed on the bolts between the first flange and the third flange, which can adapt to the error between the transformer and the lifting column, and when vibration occurs during the operation of the transformer, the spring can play a good shock-absorbing role, avoiding damage to the lifting column and the external connection shell, and at the same time enhancing the connection strength between the lead wire and the external conductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model.

[0009] In the figure: 1. third flange; 2. first flange; 3. bolts; 4. spring; 5. rising column; 6. second flange. DETAILED DESCRIPTION

[0010] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0011] This embodiment is a transformer lead riser, which is used to connect the transformer with an external connection shell.

[0012] In this embodiment, the transformer adopts a bell-shaped oil tank, and an opening is opened on the top of the transformer. The lead wires of the windings in the transformer extend out of the transformer through the opening.

[0013] In this embodiment, a lifting column 5 is installed at the opening of the transformer, and the lifting column 5 is arranged in the vertical direction, and the lifting column 5 is penetrated along the length direction of the lifting column 5. A third flange 1 is fixedly installed at the opening of the transformer, and a first flange 2 is fixedly installed at the bottom of the lifting column 5, and the angle between the first flange 2 and the horizontal plane is 5° to 35°. The lifting column 5 is connected to the transformer by installing bolts 3 between the first flange 2 and the third flange 1, and a spring 4 is mounted on the bolts 3 between the first flange 2 and the third flange 1, and the average gap between the first flange 2 and the third flange 1 is 5% to 10% of the diameter of the first flange 2. In this way, after the lifting column 5 is installed on the transformer, the error between the transformer and the lifting column 5 can be adapted under the action of the spring 4, and when vibration occurs during the operation of the transformer, the spring 4 can play a good shock-absorbing role. The lead wire on the winding inside the transformer extends from the lifting column 5, which increases the spacing between the end of the lead wire and the winding, and avoids the lead wires and the winding being connected as a whole.

[0014] In this embodiment, the top of the lifting column 5 is connected to the external connection shell. A second flange 6 is fixedly installed on the top of the lifting column 5, and a fourth flange is fixedly installed on the external connection shell. The second flange 6 and the fourth flange are connected by a brush, so that the lifting column 5 is fixedly connected to the external connection shell, and the lead wire extending from the lifting column 5 is connected to the external conductor in the external connection shell.

[0015] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A transformer lead riser, used to connect the transformer to an external connection housing, characterized in that: The invention has a lifting column (5), the lifting column (5) is connected along the length direction of the lifting column (5), a first flange (2) is fixedly installed at the bottom of the lifting column (5), a second flange (6) is fixedly installed at the top of the lifting column (5), the first flange (2) and the third flange (1) on the transformer are connected by bolts (3), the second flange (6) and the fourth flange on the external connection shell are connected by bolts (3), and a spring (4) is mounted on the bolts (3) between the first flange (2) and the third flange (1).

2. The transformer lead wire raising base according to claim 1, characterized in that: The angle between the first flange (2) and the horizontal plane is 5° to 35°.

3. The transformer lead wire raising base according to claim 1, characterized in that: The average gap between the first flange (2) and the third flange (1) is 5% to 10% of the diameter of the first flange (2).

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