CN201181626Y - Novel 500KV casing tube coil outgoing device - Google Patents
Novel 500KV casing tube coil outgoing device Download PDFInfo
- Publication number
- CN201181626Y CN201181626Y CNU2008200525940U CN200820052594U CN201181626Y CN 201181626 Y CN201181626 Y CN 201181626Y CN U2008200525940 U CNU2008200525940 U CN U2008200525940U CN 200820052594 U CN200820052594 U CN 200820052594U CN 201181626 Y CN201181626 Y CN 201181626Y
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- CN
- China
- Prior art keywords
- novel
- insulation
- sleeve pipe
- line device
- outgoing line
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- Expired - Lifetime
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Abstract
The utility model relates to a novel 500KV bushing outlet line device According to the finite element analysis method of ELAX-2D and the calculated electric field, a certain formed paper pulp insulation and two layers of insulation paper barrel are attached on the outer surface of 500 KV bushing voltage-sharing ball, a supporting bar is arranged between the insulation paper barrel to form an oil clearance, and the thin paper barrel and small oil clearance are adopted. The utility model effectively reduces the insulation distance between a high voltage lead and the fuel tank wall, reduces the fuel tank size and transformer weight, saves the transportation costs and further enhances the reliability.
Description
Technical field
The utility model relates to a kind of power transformer, is specifically related to the bushing outgoing line device of a kind of 500KV of being applicable to and above power transformer.
Background technology
Homemade 500kV power transformer, progressively accumulation and introduction foreign-made technology along with experience, aspect structure and the performance parameter significant progress is being arranged, a large amount of scientific researches have been carried out around relevant issues such as 500kV transformer Electric Field Distribution, wave process, partial discharge, turn insulation, stray field, temperature rise and short-circuit strengths, be aided with computer CAD design, progressively with every achievement in research and introduce advanced foreign technology and be applied in the product and go.Along with development of electric power industry, power transformer forward superhigh pressure, ultra high voltage, big capacity, energy-saving, low noise, fire-proof and explosion-proof type, the development of high reliability aspect.Optimize structure, particularly improve high voltage position Electric Field Distribution, reduction office puts, and rationally reduces the important topic that insulation distance becomes design of transformer.The direct outgoing line device of 500kV sleeve pipe originally, in order to improve field intensity, reduce partial discharge, added a lot of insulation molding parts at the voltage equalizing ball place, procurement cycle is long, and PROCESS FOR TREATMENT is comparatively complicated, bring difficulty to production, and need to increase high-voltage terminal insulation against ground distance, and needing to add the large tank size for this reason, this has just increased hauled weight, transportation clearance and cost of transportation.
Summary of the invention
Technical problem to be solved in the utility model is: solve the problem that above-mentioned prior art exists, and provide a kind of the existing direct outgoing line device of high pressure is improved, effectively improves Electric Field Distribution, reduces partial discharge, reduces insulation distance, dwindles oil tank of transformer overall dimension, saved the novel 500KV sleeve pipe outgoing line device of hauled weight and cost of transportation.
The technical solution adopted in the utility model is: this novel 500KV sleeve pipe outgoing line device is enclosed certain moulding pulp insulation at 500KV sleeve pipe voltage equalizing ball outer surface, adds two-layer insulating paper cylinder again, places stay between insulating paper cylinder and constitutes oil clearance.
In the technique scheme, the shape of paper web is determined according to the equipotential line shape.
In the technique scheme, paper web adopts the thin paper tube, and oil clearance adopts small oil gap.
The utility model has the advantages that: the shortcoming that has successfully solved old 500kV outgoing line device, effectively dwindled the insulation distance of 500kV high-voltage connection outlet to oil tank wall, the size and the outer limit of the transformer transportation size of fuel tank have been reduced, transformer oil weight and hauled weight are also corresponding to be reduced, and has saved cost of transportation.Reliability of products is further strengthened simultaneously.
Description of drawings:
Fig. 1 is the utility model structure longitudinal profile schematic diagram.
Fig. 2 is the A-A generalized section of Fig. 1.
Among the figure, the 1-first insulating cylinder 2-second insulating cylinder 3-moulding paper pulp
4-stay 5-voltage equalizing ball 6-500KV sleeve pipe
Embodiment:
Referring to Fig. 1, Fig. 2, finite element method according to ELAX-2D, according to the Electric Field Distribution situation that calculates, enclose 3 insulation of certain moulding paper pulp at 500KV sleeve pipe voltage equalizing ball 5 outer surfaces, add two-layer insulating paper cylinder 1,2 again, the shape of paper web is to determine according to the shape of equipotential line, places stay 4 between paper web, constitute oil clearance, what adopt here is thin paper tube, small oil gap.The 500KV sleeve pipe outgoing line device of the utility model structure, mainly be in order to reduce the electric field strength of 500KV and above high-voltage connection outlet voltage equalizing ball outer surface, can make voltage equalizing ball reduce about 1/3 to the insulation distance of oil tank wall, dwindled the overall dimension of oil tank of transformer greatly, made product succinct, generous.
Claims (3)
1, a kind of novel 500KV sleeve pipe outgoing line device is characterized in that enclosing certain moulding pulp insulation at 500KV sleeve pipe voltage equalizing ball outer surface, adds two-layer insulating paper cylinder again, places stay between insulating paper cylinder and constitutes oil clearance.
2, novel 500KV sleeve pipe outgoing line device according to claim 1 is characterized in that the shape of paper web is determined according to the equipotential line shape.
3, novel 500KV sleeve pipe outgoing line device according to claim 1 is characterized in that paper web adopts the thin paper tube, and oil clearance adopts small oil gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200525940U CN201181626Y (en) | 2008-03-21 | 2008-03-21 | Novel 500KV casing tube coil outgoing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200525940U CN201181626Y (en) | 2008-03-21 | 2008-03-21 | Novel 500KV casing tube coil outgoing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201181626Y true CN201181626Y (en) | 2009-01-14 |
Family
ID=40251122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200525940U Expired - Lifetime CN201181626Y (en) | 2008-03-21 | 2008-03-21 | Novel 500KV casing tube coil outgoing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201181626Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425369B (en) * | 2008-05-07 | 2011-04-20 | 常州市英中电气有限公司 | Insulation voltage equalizing ball used for super-high or extra-high voltage transformer and production process thereof |
| CN102331551A (en) * | 2011-07-28 | 2012-01-25 | 中国电力科学研究院 | System for testing insulation reliability of ultra-high-voltage line-outgoing device |
| CN102456469A (en) * | 2010-10-15 | 2012-05-16 | Abb技术有限公司 | Feedthrough for high voltage discharge lines in oil transformers |
| 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 |
| CN110931224A (en) * | 2019-12-20 | 2020-03-27 | 国网电力科学研究院武汉南瑞有限责任公司 | Valve side outlet structure of extra-high voltage converter |
-
2008
- 2008-03-21 CN CNU2008200525940U patent/CN201181626Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425369B (en) * | 2008-05-07 | 2011-04-20 | 常州市英中电气有限公司 | Insulation voltage equalizing ball used for super-high or extra-high voltage transformer and production process thereof |
| CN102456469A (en) * | 2010-10-15 | 2012-05-16 | Abb技术有限公司 | Feedthrough for high voltage discharge lines in oil transformers |
| CN102456469B (en) * | 2010-10-15 | 2016-04-06 | Abb技术有限公司 | For the spherical cap of the high-voltage leading-out wire in oil-immersed type transformer |
| CN102331551A (en) * | 2011-07-28 | 2012-01-25 | 中国电力科学研究院 | System for testing insulation reliability of ultra-high-voltage line-outgoing device |
| CN102331551B (en) * | 2011-07-28 | 2014-08-27 | 中国电力科学研究院 | System for testing insulation reliability of ultra-high-voltage line-outgoing device |
| 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 |
| CN110931224A (en) * | 2019-12-20 | 2020-03-27 | 国网电力科学研究院武汉南瑞有限责任公司 | Valve side outlet structure of extra-high voltage converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090114 |
|
| CX01 | Expiry of patent term |