CN211604846U - Plateau high ultraviolet-proof oil-immersed upright current transformer - Google Patents
Plateau high ultraviolet-proof oil-immersed upright current transformer Download PDFInfo
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- CN211604846U CN211604846U CN202020290283.9U CN202020290283U CN211604846U CN 211604846 U CN211604846 U CN 211604846U CN 202020290283 U CN202020290283 U CN 202020290283U CN 211604846 U CN211604846 U CN 211604846U
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Abstract
The utility model relates to a special environment current transformer structure field especially relates to a prevent positive formula current transformer that stands of plateau high ultraviolet oil immersion, only needs to simply change current design, can practice thrift manufacturing cost greatly. The utility model provides a prevent plateau high ultraviolet oily upright current transformer, includes casing and lower casing, goes up the casing lower part and is equipped with the upper flange, casing upper portion is equipped with the lower flange down, be equipped with first sealing washer between upper flange and the lower flange, the upper flange is equipped with the lens hood, the lens hood covers in the lower flange outside. The lens hood can block the junction of the upper shell and the lower shell from being irradiated by sunlight, so that the sealing ring is isolated from external light, and meanwhile, the effects of wind prevention and rain prevention can be achieved.
Description
Technical Field
The utility model relates to a special environment current transformer structure field especially relates to a prevent positive formula current transformer that stands of plateau high ultraviolet oil immersion.
Background
The oil-immersed upright current transformer is used in the field of plateau high-ultraviolet power stations, is connected in series in a circuit of current to be measured, monitors and measures the circuit of the circuit, and belongs to high-voltage electrical equipment.
At present, the external metal of the traditional oil-immersed upright current transformer is mostly treated by spraying paint on the outer surface of steel, a sealing position is sealed by a nitrile rubber sealing washer, the product is exposed in a high ultraviolet environment for a long time, and the nitrile rubber sealing washer can crack due to the characteristics of the nitrile rubber sealing washer until the sealing effect is lost, so that serious consequences are brought to the product. Therefore, under the high ultraviolet requirement of the plateau, the technical requirement is difficult to meet by the conventional oil-immersed vertical current transformer.
Chinese utility model patent No. 200520116334.1 entitled "outdoor dry composite insulation combined transformer" discloses a transformer structure, which adopts an epoxy resin cast integral structure to prevent ultraviolet radiation. Although the integral type structure can effectively play the shading effect, need carry out brand-new design to the product in-service use, make new mould, lead to the cost to rise to need to change whole just can realize above-mentioned effect to current mutual-inductor, the economic nature is not ideal.
SUMMERY OF THE UTILITY MODEL
The above-mentioned not enough to prior art, the utility model provides a prevent plateau high ultraviolet oil and soak upright current transformer only needs to carry out simple change to current design, can practice thrift manufacturing cost greatly.
The utility model provides a scheme as follows:
the utility model provides a prevent plateau high ultraviolet oily upright current transformer, includes casing and lower casing, goes up the casing lower part and is equipped with the upper flange, casing upper portion is equipped with the lower flange down, be equipped with first sealing washer between upper flange and the lower flange, the upper flange is equipped with the lens hood, the lens hood covers in the lower flange outside. The lens hood can block the junction of the upper shell and the lower shell from being irradiated by sunlight, so that the sealing ring is isolated from external light, and meanwhile, the effects of wind prevention and rain prevention can be achieved.
Preferably, the lower edge of the light shield is lower than the lower flange. When the lower edge of the light shield is lower, the light shield has better light shielding, wind prevention and rain prevention effects.
Preferably, a sleeve is arranged below the lower flange, the upper flange and the lower flange are connected with a nut through bolts, and the bolts penetrate through the upper flange, the lower flange and the sleeve and are connected with the nut. Since the upper and lower housings are usually bolted together, when the lower edge of the shade is lower, for example, lower than the lower flange, the nut is located inside the shade and is difficult to fix by a wrench. Through setting up the sleeve, can reduce the position of nut when fixed, make things convenient for operating personnel to use the spanner to fix the nut.
Preferably, the light shield and the upper flange are of a split structure, and the bolt penetrates through the light shield, the upper flange, the lower flange and the sleeve and is connected with the nut. The split type lens hood can be directly applied to the existing current transformer, the original structure is not required to be changed, and the function of shielding ultraviolet rays can be realized.
Preferably, the sleeve and the lower flange are of an integrated structure. The sleeve and the lower flange integrated structure can be more compact, and are more convenient to connect by using bolts.
Preferably, a second sealing ring is arranged between the upper flange and the lower flange and is positioned on the outer side of the first sealing ring. The second sealing washer further keeps apart first sealing washer and external world, can prolong the life-span of first sealing washer, can seal better to mutual-inductor oil.
Preferably, the second sealing ring is a silica gel sealing ring or a fluorine gel sealing ring. First sealing washer mainly used seals mutual-inductor oil, consequently adopts the nitrile rubber material usually, but the nitrile rubber material second sealing washer mainly used keeps apart the outside air, prevents that a large amount of ozone resistant ozone ability is poor, and partial plateau area ozone content is higher, consequently uses the better silica gel of resistant ozone ability or fluorine rubber material to keep apart the ozone in the air.
The utility model discloses beneficial effect has once:
1. the light shield can effectively shield the irradiation of sunlight and prevent ultraviolet rays from influencing a sealing ring of the mutual inductor;
2. the structure of the light shield is simple, the mutual inductor is only slightly changed when being redesigned, even the mutual inductor is not changed completely, the design cost is greatly saved, and the installation is convenient;
3. the second sealing washer can be kept apart first sealing washer and outside air effectively, avoids ozone in the atmosphere to cause the harm to the first sealing washer of butadiene acrylonitrile rubber material.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the embodiment shown at A in FIG. 1;
FIG. 3 is a schematic structural view of the second embodiment at A in FIG. 1;
in the figure, 1-upper shell, 2-lower shell, 3-upper flange, 4-lower flange, 5-first sealing ring, 6-light shield, 7-sleeve, 8-bolt, 9-nut, 10-second sealing ring.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below 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, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
Example one
As shown in fig. 1 and fig. 2, the present embodiment provides an upright current transformer capable of preventing high altitude high ultraviolet oil immersion, which includes an upper shell 1 and a lower shell 2, an upper flange 3 is disposed on a lower portion of the upper shell 1, a lower flange 4 is disposed on an upper portion of the lower shell 2, and a first sealing ring 5 is disposed between the upper flange 3 and the lower flange 4.
The upper flange 3 is provided with a light shield 6, the light shield 6 covers the outer side of the lower flange 4, and the lower edge of the light shield 6 is lower than the lower flange 4. A sleeve 7 is arranged below the lower flange 4, and the lower flange, the upper flange 3, the lower flange 4 and the sleeve 7 are sequentially penetrated through by bolts 8 from top to bottom and then fixed through nuts 9. In this embodiment, the bottom of the sleeve 7 is lower than the lower edge of the light shield 6.
The light shield 6 and the upper flange 3 are of a split structure, and the sleeve 7 and the lower flange 4 are of a split structure.
A second sealing ring 10 is further arranged between the upper flange 3 and the lower flange 4, the second sealing ring 10 is located on the outer side of the first sealing ring 5, and a silica gel sealing ring or a fluorine gel sealing ring is used.
Example two
As shown in fig. 3, in the present embodiment, the light shield 6 and the upper flange 3 are an integral structure, and the sleeve 7 and the lower flange 4 are an integral structure, and other parts of the present embodiment are substantially the same as those of the first embodiment.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and substance of the present invention, any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all such changes or substitutions are covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a prevent plateau high ultraviolet oily upright current transformer, includes casing (1) and lower casing (2), goes up casing (1) lower part and is equipped with flange (3), casing (2) upper portion is equipped with lower flange (4) down, upward be equipped with first sealing washer (5), its characterized in that between flange (3) and lower flange (4): the upper flange (3) is provided with a light shield (6), and the light shield (6) covers the outer side of the lower flange (4).
2. The plateau high ultraviolet resistant oil immersed upright current transformer of claim 1, characterized in that: the lower edge of the light shield (6) is lower than the lower flange (4).
3. The plateau high ultraviolet resistant oil immersed upright current transformer of claim 2, characterized in that: the lower flange (4) is provided with a sleeve (7) below, the upper flange (3) and the lower flange (4) are connected with a nut (9) through a bolt (8), and the bolt (8) penetrates through the upper flange (3), the lower flange (4) and the sleeve (7) and is connected with the nut (9).
4. The plateau high ultraviolet resistant oil immersed upright current transformer of claim 3, characterized in that: the light shield (6) and the upper flange (3) are of a split structure, and the bolt (8) penetrates through the light shield (6), the upper flange (3), the lower flange (4) and the sleeve (7) and is connected with the nut.
5. The plateau high ultraviolet resistant oil immersed upright current transformer of claim 3, characterized in that: the sleeve (7) and the lower flange (4) are of an integrated structure.
6. The plateau high ultraviolet resistant oil-immersed upright current transformer according to any one of claims 1 to 5, characterized in that: and a second sealing ring (10) is arranged between the upper flange (3) and the lower flange (4), and the second sealing ring (10) is positioned on the outer side of the first sealing ring (5).
7. The plateau high ultraviolet resistant oil immersed upright current transformer of claim 6, characterized in that: the second sealing ring (10) is a silica gel sealing ring or a fluorine gel sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020290283.9U CN211604846U (en) | 2020-03-10 | 2020-03-10 | Plateau high ultraviolet-proof oil-immersed upright current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020290283.9U CN211604846U (en) | 2020-03-10 | 2020-03-10 | Plateau high ultraviolet-proof oil-immersed upright current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211604846U true CN211604846U (en) | 2020-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020290283.9U Active CN211604846U (en) | 2020-03-10 | 2020-03-10 | Plateau high ultraviolet-proof oil-immersed upright current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211604846U (en) |
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2020
- 2020-03-10 CN CN202020290283.9U patent/CN211604846U/en active Active
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