CN203055636U - Voltage-equalizing ball structure of oilpaper capacitance type transformer bushing - Google Patents
Voltage-equalizing ball structure of oilpaper capacitance type transformer bushing Download PDFInfo
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- CN203055636U CN203055636U CN 201220722704 CN201220722704U CN203055636U CN 203055636 U CN203055636 U CN 203055636U CN 201220722704 CN201220722704 CN 201220722704 CN 201220722704 U CN201220722704 U CN 201220722704U CN 203055636 U CN203055636 U CN 203055636U
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- equalizing ball
- voltage
- voltage equalizing
- type transformer
- transformer bushing
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Abstract
The utility model discloses a voltage-equalizing ball structure of an oilpaper capacitance type transformer bushing. The voltage-equalizing ball structure of the oilpaper capacitance type transformer bushing is applicable to the voltage classes of more than 110 kV, and comprises a voltage-equalizing ball body, wherein a layer of insulation thin film is arranged on the outer wall of the voltage-equalizing ball body. The voltage-equalizing ball structure of the oilpaper capacitance type transformer bushing guarantees the safety of production and usage, and shortens the insulation distance between an upper clamp in a transformer and an oil tank wall, thereby reducing the size of the transformer and lowering production cost.
Description
Technical field
The utility model relates to the transformer technology field, is specifically related to the voltage equalizing ball structure of oil-impregnated paper condenser type transformer bushing.
Background technology
At present, employed bushing insulator in 110kV and above electric pressure transformer, the voltage equalizing ball of its bottom is the metal manufacturing, the surface of voltage equalizing ball does not have megohmite insulant to coat, and has only played the effect of all pressing.In transformer insulated design, after bushing insulator is installed on transformer, the voltage equalizing ball of its bottom is between discus, upper clamping piece, three earth electrodes of oil tank wall, in order to guarantee to produce and use safety, insulation distance between voltage equalizing ball and upper clamping piece and the oil tank wall is all bigger, makes upper clamping piece and the insulation distance between the oil tank wall that iron core is installed also corresponding bigger like this, makes that like this volume of whole transformer is corresponding bigger, increase the production consumptive material, improved enterprise's production cost.
The utility model content
The purpose of this utility model provides a kind of when guaranteeing production and using safety, can reduce the volume of transformer, thus the voltage equalizing ball structure of the oil-impregnated paper condenser type transformer bushing that reduces production costs.
For achieving the above object, the utility model has adopted following technical scheme: the voltage equalizing ball structure of described oil-impregnated paper condenser type transformer bushing comprises: the voltage equalizing ball body, the outer wall of voltage equalizing ball body is provided with one deck insulation film.
Further, the voltage equalizing ball structure of aforesaid oil-impregnated paper condenser type transformer bushing, wherein: described insulation film is for evenly being coated on the insulating varnish on the voltage equalizing ball body outer wall.
Further, the voltage equalizing ball structure of aforesaid oil-impregnated paper condenser type transformer bushing, wherein: described insulation film is the insulating paper that envelopes voltage equalizing ball body outer wall.
By the enforcement of technique scheme, the utility model can shorten the insulation distance between upper clamping piece and the oil tank wall, thereby can reduce the volume of transformer when guaranteeing production and using safety, reduces production costs.
Description of drawings,
Fig. 1 is the structural representation of the voltage equalizing ball structure of oil-impregnated paper condenser type transformer bushing described in the utility model.
Fig. 2 is the structural representation that the oil-impregnated paper condenser type transformer bushing of voltage equalizing ball shown in Figure 1 is installed.
Fig. 3 be voltage equalizing ball and upper clamping piece in the transformer, and oil tank wall between the position concern schematic diagram.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As Fig. 1, Fig. 2, shown in Figure 3, the voltage equalizing ball structure of described oil-impregnated paper condenser type transformer bushing comprises: voltage equalizing ball body 1, and the outer wall of voltage equalizing ball body 1 is provided with one deck insulation film 2; In the present embodiment, insulation film 2 can adopt insulating varnish or insulating paper, and so not only price is low, and insulation effect is good; In actual applications, after the oil-impregnated paper condenser type transformer bushing 3 that voltage equalizing ball described in the utility model is installed is installed on transformer, iron core 4 in voltage equalizing ball and the transformer and upper clamping piece 5, and the relation of the position between oil tank wall 6 threes as shown in Figure 3, owing to be provided with one deck insulation film 2 at voltage equalizing ball, not only reduced in the fuel tank well cuts to the adverse effect of voltage equalizing ball body 1, insulation film itself has also been born certain voltage simultaneously, improved the oil-gap Electric Field Distribution, near the maximum field intensity of electrode is descended, improved the ability of bearing power-frequency voltage and surge voltage, thereby can shorten the insulation distance between voltage equalizing ball body 1 and the upper clamping piece 5, and the insulation distance between voltage equalizing ball body 1 and the oil tank wall 6, so also with regard to the corresponding insulation distance that has shortened between upper clamping piece 5 and the oil tank wall 6, its insulation distance can reduce about 18%, and then significantly reduced the volume of transformer, save the production consumptive material, reduced enterprise's production cost.
Claims (3)
1. the voltage equalizing ball structure of oil-impregnated paper condenser type transformer bushing, comprising: the voltage equalizing ball body is characterized in that: the outer wall of voltage equalizing ball body is provided with one deck insulation film.
2. the voltage equalizing ball structure of oil-impregnated paper condenser type transformer bushing according to claim 1 is characterized in that: described insulation film is for evenly being coated on the insulating varnish on the voltage equalizing ball body outer wall.
3. the voltage equalizing ball structure of oil-impregnated paper condenser type transformer bushing according to claim 1, it is characterized in that: described insulation film is the insulating paper that envelopes voltage equalizing ball body outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220722704 CN203055636U (en) | 2012-12-25 | 2012-12-25 | Voltage-equalizing ball structure of oilpaper capacitance type transformer bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220722704 CN203055636U (en) | 2012-12-25 | 2012-12-25 | Voltage-equalizing ball structure of oilpaper capacitance type transformer bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203055636U true CN203055636U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220722704 Expired - Fee Related CN203055636U (en) | 2012-12-25 | 2012-12-25 | Voltage-equalizing ball structure of oilpaper capacitance type transformer bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203055636U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050251A (en) * | 2012-12-25 | 2013-04-17 | 保定天威集团(江苏)五洲变压器有限公司 | Voltage sharing ball structure of oiled paper condenser type transformer bushing |
-
2012
- 2012-12-25 CN CN 201220722704 patent/CN203055636U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050251A (en) * | 2012-12-25 | 2013-04-17 | 保定天威集团(江苏)五洲变压器有限公司 | Voltage sharing ball structure of oiled paper condenser type transformer bushing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215600 No. 5 Jing Dong Road, Zhangjiagang Economic Development Zone (South District), Suzhou, Jiangsu Patentee after: Jiangsu Wuzhou Electric Power Technology Co., Ltd. Address before: Suzhou City, Jiangsu province 215600 Zhangjiagang Economic Development Zone (yangshe Village Wang) Baoding Print-Rite group (Jiangsu) Co., Ltd. Wuzhou transformer Patentee before: Baoding Tianwei Group (Jiangsu) Wuzhou Transformer Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20201225 |