CN103050251A - Voltage sharing ball structure of oiled paper condenser type transformer bushing - Google Patents
Voltage sharing ball structure of oiled paper condenser type transformer bushing Download PDFInfo
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- CN103050251A CN103050251A CN2012105692584A CN201210569258A CN103050251A CN 103050251 A CN103050251 A CN 103050251A CN 2012105692584 A CN2012105692584 A CN 2012105692584A CN 201210569258 A CN201210569258 A CN 201210569258A CN 103050251 A CN103050251 A CN 103050251A
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- Prior art keywords
- voltage equalizing
- equalizing ball
- condenser type
- type transformer
- ball structure
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Abstract
The invention discloses a voltage sharing ball structure applicable to an oiled paper condenser type transformer bushing at voltage class of 110KV or above. The voltage sharing ball structure comprises a voltage sharing ball body, and an insulation film is arranged on the outer wall of the voltage sharing ball body. In the mean time of guaranteeing safety in production and use, insulation distance between an upper clamp part and an oil tank wall in the transformer can be shortened, and accordingly, size of the transformer can be reduced, and production cost is reduced.
Description
Technical field
The present invention relates to the transformer technology field, be 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 transformer, the voltage equalizing ball of its bottom are the metal manufacturing, and the surface of voltage equalizing ball does not have megohmite insulant to coat, and have 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 larger, makes like this upper clamping piece and the insulation distance between the oil tank wall that iron core is installed also corresponding larger, like this so that the volume of whole transformer is corresponding larger, increase the production consumptive material, improved enterprise's production cost.
Summary of the invention
The purpose of this invention is to provide a kind of guarantee to produce with use safety in, 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 present invention 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 is provided with one deck insulation film at the outer wall of voltage equalizing ball body.
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 present invention 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 of the present invention.
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 is voltage equalizing ball and upper clamping piece in the transformer, reaches the position relationship schematic diagram between the oil tank wall.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Such 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 is provided with one deck insulation film 2 at the outer wall of voltage equalizing ball body 1; 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 of the present invention is installed is installed on transformer, iron core 4 in voltage equalizing ball and the transformer and upper clamping piece 5, and the position relationship 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 greatly 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 at the 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 |
|---|---|---|---|
| CN2012105692584A CN103050251A (en) | 2012-12-25 | 2012-12-25 | Voltage sharing ball structure of oiled paper condenser type transformer bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105692584A CN103050251A (en) | 2012-12-25 | 2012-12-25 | Voltage sharing ball structure of oiled paper condenser type transformer bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103050251A true CN103050251A (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105692584A Pending CN103050251A (en) | 2012-12-25 | 2012-12-25 | Voltage sharing ball structure of oiled paper condenser type transformer bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103050251A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5440286A (en) * | 1991-03-26 | 1995-08-08 | North American Philips Corporation | Electrical transformer structure with coil covers |
| CN2750432Y (en) * | 2004-08-03 | 2006-01-04 | 特变电工沈阳变压器集团有限公司 | Insulation structure of transformer lead |
| JP2007194141A (en) * | 2006-01-20 | 2007-08-02 | Asahi Electric Works Ltd | Insulation cover and its mounting structure |
| CN201181626Y (en) * | 2008-03-21 | 2009-01-14 | 特变电工衡阳变压器有限公司 | Novel 500KV casing tube coil outgoing device |
| CN201215757Y (en) * | 2008-07-04 | 2009-04-01 | 济南第二变压器厂有限公司 | Three-phase oil immersion electric power transformer |
| CN201262864Y (en) * | 2008-05-07 | 2009-06-24 | 常州市英中电气有限公司 | Insulation voltage equalizing ball for ultra-high voltage or extra-high voltage transformer |
| CN203055636U (en) * | 2012-12-25 | 2013-07-10 | 保定天威集团(江苏)五洲变压器有限公司 | Voltage-equalizing ball structure of oilpaper capacitance type transformer bushing |
-
2012
- 2012-12-25 CN CN2012105692584A patent/CN103050251A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5440286A (en) * | 1991-03-26 | 1995-08-08 | North American Philips Corporation | Electrical transformer structure with coil covers |
| CN2750432Y (en) * | 2004-08-03 | 2006-01-04 | 特变电工沈阳变压器集团有限公司 | Insulation structure of transformer lead |
| JP2007194141A (en) * | 2006-01-20 | 2007-08-02 | Asahi Electric Works Ltd | Insulation cover and its mounting structure |
| CN201181626Y (en) * | 2008-03-21 | 2009-01-14 | 特变电工衡阳变压器有限公司 | Novel 500KV casing tube coil outgoing device |
| CN201262864Y (en) * | 2008-05-07 | 2009-06-24 | 常州市英中电气有限公司 | Insulation voltage equalizing ball for ultra-high voltage or extra-high voltage transformer |
| CN201215757Y (en) * | 2008-07-04 | 2009-04-01 | 济南第二变压器厂有限公司 | Three-phase oil immersion electric power transformer |
| CN203055636U (en) * | 2012-12-25 | 2013-07-10 | 保定天威集团(江苏)五洲变压器有限公司 | Voltage-equalizing ball structure of oilpaper capacitance type transformer bushing |
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Application publication date: 20130417 |