CN103106998A - Oil-immersed transformer - Google Patents
Oil-immersed transformer Download PDFInfo
- Publication number
- CN103106998A CN103106998A CN2012105346191A CN201210534619A CN103106998A CN 103106998 A CN103106998 A CN 103106998A CN 2012105346191 A CN2012105346191 A CN 2012105346191A CN 201210534619 A CN201210534619 A CN 201210534619A CN 103106998 A CN103106998 A CN 103106998A
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- iron core
- oil
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- coil
- core
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Abstract
The invention discloses an oil-immersed transformer which comprises an oil tank, an iron core and a coil. A tank cover is arranged on the oil tank. The iron core and the coil are arranged in the oil tank. The oil-immersed transformer is characterized in that the iron core is a three-phase five-column iron core and composed of four single-phase opened rolling iron cores side by side arranged. The appearance shape of each three-phase five-column iron core is shaped like a Chinese character 'kou' and a section of each of the three-phase five-column iron core is in a semi-rectangular shape. The section shape of five core columns of the iron core is a rectangular opened rolling iron core. Each layer is provided with two broken openings. The positions of the broken openings are arranged on two edge columns. A low voltage coil is arranged in each of the five core columns of the iron core. An insulating layer is fastened on the outer portion of each lower voltage coil. A high voltage coil is arranged on the outer portion of each insulating layer. An upper clamp and a lower clamp are fixed on the iron core and a high voltage connecting end and a low voltage connecting end are led out. The oil-immersed transformer has the advantages of being short in magnetic circuit, high in power factors, small in size, strong in outburst short circuit resistant capacity, good in technology conditions and the like.
Description
Technical field
The present invention relates to transformer manufacture technology, particularly relate to a kind of oil-filled transformer.
Background technology
Oil-filled transformer mainly is comprised of iron core, coil and fuel tank, and the iron core major part of at present domestic oil-filled transformer is laminated structure, is formed by the silicon steel sheet stack.Because all there is many places mitre in the iron core of stack moulding in junction, every layer of limit, and cause the increase of magnetic resistance and iron loss, the exciting current of transformer is also increased, reduced power factor, had a strong impact on the power supply quality of electrical network.The transformer core seam has also caused the large problem of running noises.In order to overcome the defective of above-mentioned laminated core structure, recent year has many producers to adopt the coiled iron core transformer, this transformer core is that the silicon strip continuous reeling by definite shape forms, and transformer performance has a certain upgrade, and is mainly reflected in that no-load loss is low, noise is little.But because coiled iron core is jointless structure, also there are problems, as: manufacturing equipment production capacity is limited, needs special-purpose spooling equipment during the transformer coil coiling, and wind the line with iron core, winding process is difficult, complicated, production efficiency is low.Especially can't solve big-and-middle-sized transformer coiling and paint-dipping process.The maintenance aspect is very difficult especially, in case the transformer coil breaks down, just can't take off coil from iron core and change, and must cause scrapping of whole transformer.Owing to there being above-mentioned shortcoming, popularization and use without seam volume iron core have been restricted.
Summary of the invention
Purpose of the present invention is exactly defective and the deficiency that exists for overcoming above-mentioned prior art, and a kind of oil-filled transformer is provided.
The technical scheme that adopts is:
a kind of oil-filled transformer, comprise fuel tank, iron core, be equiped with case lid on fuel tank, bushing and low-tension bushing are housed on case lid, O phase sleeve pipe, oil level indicator, exhaust apparatus, shunting switch, four groups of fin are distributed on four sides, iron core and coil are arranged in fuel tank, it is characterized in that described iron core is the three-phase and five-pole iron core, the single-phase open core that is half rectangle for " mouth " font its cross section by four face shapings is arranged side by side and combines, the cross sectional shape of five stem stems of iron core is rectangular aperture volume iron core, two fractures are arranged in every layer, fracture site is located at two side columns, be incorporated with coil in five stem stems of iron core.
The present invention possesses the good characteristics such as magnetic circuit is shorter, power factor is higher, volume is less, the ability of anti-sudden short circuit is strong, process conditions are good.Do not need the spooling equipment of special-purpose volume iron core special use in manufacturing process, coil coiling has separately improved production efficiency.In a single day transformer in use coil breaks down, and the transformer core opening part can be opened, and then takes out coil and keeps in repair and change, and has fundamentally solved the volume iron core due to the problems that produce without seam.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
A kind of oil-filled transformer, comprise fuel tank 1, iron core 2, be equiped with case lid 3 on fuel tank 1, bushing 4 and low-tension bushing 5 and O sleeve pipe 6 mutually is housed on case lid 3, oil level indicator 7, exhaust apparatus 8, shunting switch 9, four groups of fin 10 are distributed on four sides, iron core 2 is the three-phase and five-pole iron core, the single-phase open core that is half rectangle for " mouth " font its cross section by four face shapings is arranged side by side and combines, the cross sectional shape of five stem stems of iron core is rectangular aperture volume iron core, two fractures 11 are arranged in every layer, and fracture site is located at two side columns.
Claims (1)
1. oil-filled transformer, comprise fuel tank, iron core, be equiped with case lid on fuel tank, bushing and low-tension bushing are housed on case lid, O phase sleeve pipe, oil level indicator, exhaust apparatus, shunting switch, four groups of fin are distributed on four sides, iron core and coil are arranged in fuel tank, it is characterized in that described iron core is the three-phase and five-pole iron core, the single-phase open core that is half rectangle for " mouth " font its cross section by four face shapings is arranged side by side and combines, the cross sectional shape of five stem stems of iron core is rectangular aperture volume iron core, two fractures are arranged in every layer, fracture site is located at two side columns, be incorporated with coil in five stem stems of iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105346191A CN103106998A (en) | 2012-12-12 | 2012-12-12 | Oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105346191A CN103106998A (en) | 2012-12-12 | 2012-12-12 | Oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103106998A true CN103106998A (en) | 2013-05-15 |
Family
ID=48314778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105346191A Pending CN103106998A (en) | 2012-12-12 | 2012-12-12 | Oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103106998A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971887A (en) * | 2014-04-25 | 2014-08-06 | 江苏天威变压器有限公司 | Oil-immersed transformer |
| CN105280357A (en) * | 2014-07-07 | 2016-01-27 | 郑州金源特变电气有限公司 | Novel efficient and energy-saving opening roll-core oil-immersed transformer |
| CN112349483A (en) * | 2019-08-06 | 2021-02-09 | 湖南塞凡电气科技有限公司 | Oil-immersed transformer |
-
2012
- 2012-12-12 CN CN2012105346191A patent/CN103106998A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971887A (en) * | 2014-04-25 | 2014-08-06 | 江苏天威变压器有限公司 | Oil-immersed transformer |
| CN105280357A (en) * | 2014-07-07 | 2016-01-27 | 郑州金源特变电气有限公司 | Novel efficient and energy-saving opening roll-core oil-immersed transformer |
| CN112349483A (en) * | 2019-08-06 | 2021-02-09 | 湖南塞凡电气科技有限公司 | Oil-immersed transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130515 |