CN202454415U - Oil-immersed transformer - Google Patents

Oil-immersed transformer Download PDF

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Publication number
CN202454415U
CN202454415U CN2012200487502U CN201220048750U CN202454415U CN 202454415 U CN202454415 U CN 202454415U CN 2012200487502 U CN2012200487502 U CN 2012200487502U CN 201220048750 U CN201220048750 U CN 201220048750U CN 202454415 U CN202454415 U CN 202454415U
Authority
CN
China
Prior art keywords
transformer
iron core
oil
pressure winding
yoke
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2012200487502U
Other languages
Chinese (zh)
Inventor
宫树慧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANDONG CHEN YU ELECTRICAL CO Ltd
Original Assignee
SHANDONG CHEN YU ELECTRICAL CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANDONG CHEN YU ELECTRICAL CO Ltd filed Critical SHANDONG CHEN YU ELECTRICAL CO Ltd
Priority to CN2012200487502U priority Critical patent/CN202454415U/en
Application granted granted Critical
Publication of CN202454415U publication Critical patent/CN202454415U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an oil-immersed transformer and relates to the technical field of transformer equipment. The oil-immersed transformer comprises a transformer body arranged in an oil storage tank, wherein the transformer body comprises an iron core, high-voltage windings and low-voltage windings; the iron core comprises an upper yoke and a lower yoke; three iron core columns are arranged between the upper yoke and the lower yoke; the high-voltage winding is respectively wound on the outer side of each iron core column; the low-voltage windings are wound on the outer sides of the high-voltage windings; and the low-voltage windings are formed by winding copper foils. The oil-immersed transformer disclosed by the utility model can save raw materials, reduce the weight of the transformer, reduce the production cost, greatly reduce eddy current loss and supplementary loss, improve the anti-short circuit capability of the transformer, further reduce the load loss of the transformer, reduce the operation cost of the transformer and prolong the service life of the transformer.

Description

Oil-filled transformer
Technical field
The utility model relates to the transformer equipment technical field, particularly a kind of oil-filled transformer.
Background technology
Transformer is to utilize the principle of electromagnetic induction to change the device of alternating voltage, and it has a public iron core and the several windings crosslinked with it, and the locus between them is constant.When some windings when power supply is accepted AC energy, through the inductance magnetisation, magnetic electromagnetic induction principle induced electricity changes voltage, on remaining winding with same frequency, different voltage transmission AC energies.Transformer can be divided into dry-type transformer and oil-filled transformer by the type of cooling; At present, mostly the winding of oil-filled transformer is to form with the parallel coiling of many copper conductors, and the winding of this structure exists a little less than the mechanical strength; Anti-short circuit capability is poor; Defectives such as the supplementary load loss of transformer are big make that the operating cost of transformer is high, and useful life is short.And the fuel reserve tank sealing problem that most oil-filled transformer causes because of part is prone to produce oil leakage phenomenon, has seriously influenced the normal operation of transformer.
The utility model content
The utility model purpose is in order to overcome above-mentioned deficiency, provides that a kind of supplementary load loss are little, operating cost is low, the oil-filled transformer of long service life.
For solving the problems of the technologies described above; The technical scheme of the utility model is: a kind of oil-filled transformer; Comprise the transformer body that is arranged in the fuel reserve tank, said transformer body comprises iron core, high pressure winding and low pressure winding, and said iron core comprises yoke and lower yoke; Described going up between yoke and the lower yoke is provided with three iron core column; All be wound with said high pressure winding in the outside of described every iron core column, said low pressure winding technique is in the outside of high pressure winding, and said low pressure winding is formed by the Copper Foil coiling.
As a kind of improvement, be provided with cooling oil duct between said high pressure winding and the low pressure winding.
As further improvement, the cross section of described three iron core column is ellipse.
The beneficial effect of the utility model is: because the said oil-filled transformer of the utility model comprises the transformer body that is arranged in the fuel reserve tank, said transformer body comprises iron core, high pressure winding and low pressure winding, and said iron core comprises yoke and lower yoke; Described going up between yoke and the lower yoke is provided with three iron core column; Said high pressure winding technique is in the outside of said iron core column, and said low pressure winding technique is in the outside of high pressure winding, and described low pressure winding forms by the Copper Foil coiling; Thereby increased the low pressure mechanical Strength for Winding; Significantly reduce eddy current loss and supplementary load loss, improved the anti-short circuit capability of transformer, and then reduced the load loss of transformer; Reduce the operating cost of transformer, improved the useful life of transformer.
Owing to be provided with cooling oil duct between said high pressure winding and the low pressure winding; Strengthened the cooling effect of transformer; Reduce Transformer Winding Yin Wendu to surpass the insulation tolerable temperature and make and the generation of phenomenon of insulation breakdown guaranteed the normal operation of transformer, prolonged the useful life of transformer.
Because using cross section is that oval-shaped iron core column has replaced the iron core column of original cross section as circle, makes the length of yoke shorten, thereby has reduced the no-load loss of transformer, has practiced thrift raw material, has alleviated the weight of transformer.
In sum, the utility model has been practiced thrift raw material, has alleviated the weight of transformer; Reduced production cost; And significantly reduced eddy current loss and supplementary load loss, improved the anti-short circuit capability of transformer, and then reduced the load loss of transformer; Reduce the operating cost of transformer, improved the useful life of transformer.
Description of drawings
Accompanying drawing is the structural representation of the utility model;
Among the figure: 1, low pressure winding, 2, the high pressure winding, 3, cooling oil duct, 4, iron core column, 5, fuel reserve tank, 6, fin.
Embodiment
Below in conjunction with accompanying drawing and embodiment, further set forth the utility model.
Shown in accompanying drawing, a kind of oil-filled transformer comprises the transformer body that is arranged in the fuel reserve tank 5; Said transformer body comprises iron core, high pressure winding 2 and low pressure winding 1; Said iron core comprises yoke and lower yoke, and described going up between yoke and the lower yoke is provided with three iron core column 4, all is wound with said high pressure winding 2 in the outside of described every iron core column 4; Said low pressure winding 1 is wound on the outside of high pressure winding 2, and said low pressure winding 1 is formed by the Copper Foil coiling.Thereby increased the low pressure mechanical Strength for Winding, significantly reduced eddy current loss and supplementary load loss, improved the anti-short circuit capability of transformer, and then reduced the load loss of transformer, reduced the operating cost of transformer, improved the useful life of transformer.
Be provided with cooling oil duct between said high pressure winding 2 and the low pressure winding 1; Strengthened the cooling effect of transformer; Reduce Transformer Winding Yin Wendu to surpass the insulation tolerable temperature and make and the generation of phenomenon of insulation breakdown guaranteed the normal operation of transformer, prolonged the useful life of transformer.
The cross section of described three iron core column 4 is ellipse, is multistage iron core.Iron core is the magnetic circuit part of transformer, and it is the conversion medium between electric energy and the magnetic energy, and iron core is to be processed by the very high electrical steel sheet of magnetic permeability.Because using cross section is that oval-shaped iron core column has replaced the iron core column of original cross section as circle, makes the length of yoke shorten, thereby has reduced the no-load loss of transformer, has practiced thrift raw material, has alleviated the weight of transformer.
The casing and the case lid of said fuel reserve tank 5 are welded as a whole, and make whole fuel reserve tank 5 reach sealing completely, and the oil-filled mode of described oil-filled transformer adopts the vacuum oil filling mode, has solved the leakage of oil and the oil impregnate phenomenon of transformer.
Be provided with some fin 6 outside the fuel reserve tank 5, can further improve the radiating effect of transformer.
The utility model is not limited to above-mentioned concrete execution mode, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done all drop within the protection range of the utility model.

Claims (3)

1. oil-filled transformer; Comprise the transformer body that is arranged in the fuel reserve tank, said transformer body comprises iron core, high pressure winding and low pressure winding, and said iron core comprises yoke and lower yoke; Described going up between yoke and the lower yoke is provided with three iron core column; It is characterized in that: all be wound with said high pressure winding in the outside of described every iron core column, said low pressure winding technique is in the outside of high pressure winding, and said low pressure winding is formed by the Copper Foil coiling.
2. oil-filled transformer according to claim 1 is characterized in that: be provided with cooling oil duct between said high pressure winding and the low pressure winding.
3. oil-filled transformer according to claim 1 and 2 is characterized in that: the cross section of described three iron core column is ellipse.
CN2012200487502U 2012-02-15 2012-02-15 Oil-immersed transformer Expired - Fee Related CN202454415U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012200487502U CN202454415U (en) 2012-02-15 2012-02-15 Oil-immersed transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012200487502U CN202454415U (en) 2012-02-15 2012-02-15 Oil-immersed transformer

Publications (1)

Publication Number Publication Date
CN202454415U true CN202454415U (en) 2012-09-26

Family

ID=46870257

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012200487502U Expired - Fee Related CN202454415U (en) 2012-02-15 2012-02-15 Oil-immersed transformer

Country Status (1)

Country Link
CN (1) CN202454415U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103531331A (en) * 2013-10-12 2014-01-22 山东万通电力设备配套有限公司 Oil-immersed transformer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103531331A (en) * 2013-10-12 2014-01-22 山东万通电力设备配套有限公司 Oil-immersed transformer

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120926

Termination date: 20180215

CF01 Termination of patent right due to non-payment of annual fee