CN201134328Y - Magnet-electricity mixed screening arrangement for oil tank of transformer - Google Patents
Magnet-electricity mixed screening arrangement for oil tank of transformer Download PDFInfo
- Publication number
- CN201134328Y CN201134328Y CNU200720138424XU CN200720138424U CN201134328Y CN 201134328 Y CN201134328 Y CN 201134328Y CN U200720138424X U CNU200720138424X U CN U200720138424XU CN 200720138424 U CN200720138424 U CN 200720138424U CN 201134328 Y CN201134328 Y CN 201134328Y
- Authority
- CN
- China
- Prior art keywords
- oil tank
- transformer
- fuel tank
- magnetic
- screening arrangement
- 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
Links
Images
Landscapes
- Regulation Of General Use Transformers (AREA)
Abstract
A magneto-electric mixed shielding device of a transformer oil tank belongs to the transformer technical field, which is used to solve the problem of shielding magnetic leakage for transformers with complex structure. The technical scheme of the device comprises that the magneto-electric mixed shielding device comprises a magnetic shielding plate and an electric shielding plate, the magnetic shielding plate is fixed on the vertical inner wall of the transformer oil tank, the electric shielding plate is installed on the inner wall of the transformer oil tank and located at the bent position between the oil tank lateral wall and the oil tank cover and the bottom. The magneto-electric mixed shielding device can largely reduce additional loss of a complex oil tank, effectively prevents local over heating of the oil tank, and meets the requirements on optimum performance to the utmost extent.
Description
Technical field
The utility model relates to a kind of Magnetic Leakage Field of Transformer screening arrangement, belongs to the transformer technology field.
Background technology
When the leakage flux that Transformer Winding produces is flowed through structural member such as tank wall, the supplementary load loss of transformer are increased, also can cause the fuel tank local overheating.In order to prevent the generation of above-mentioned phenomenon, traditional transformer generally is provided with magnetic shielding device or electrical barrier devices in transformer inside.Magnetic shielding device is made of electrical steel strip, it is by reducing the magnetic resistance of leakage magnetic circuit, effectively reduce the supplementary load loss of transformer, and prevent local overheating, its shortcoming is that shape can not change with the variation of oil tank wall, only can be arranged on the regular plane, when running into on-plane surface such as fuel tank knuckle, just be difficult for laying.The electricity (copper) though its shape of screening arrangement can change along with the variation of oil tank wall, but principle (vortex principle) according to electricity (copper) shielding, when too much application electricity (copper) shielding, can cause the increase of transformer supplementary load loss, the Transformer Economic index is descended greatly, and this is that the user is unacceptable.Along with the continuous increase of power transformer capacity, the improving constantly of electric pressure, the user is also more and more higher to low-loss pursuit, and traditional screening arrangement can not satisfy the requirement of optimum performance.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of supplementary load loss little, can effectively prevent the oil tank of transformer magnetoelectricity mixing screening arrangement of fuel tank local overheating.
Problem described in the utility model realizes with following technical proposals:
A kind of oil tank of transformer magnetoelectricity mixing screening arrangement, it comprises magnetic shield panel 1 and electric screen 2, described magnetic shield panel 1 is fixed on the inner vertical walls of oil tank of transformer, described electric screen 2 be installed on the transformer oil chamber interior wall and be positioned at the fuel tank sidewall and fuel tank cap, fuel tank at the bottom of the bending place.
Above-mentioned oil tank of transformer magnetoelectricity mixing screening arrangement, described magnetic shield panel is the flat board of electrical steel strip closed assembly.
Above-mentioned oil tank of transformer magnetoelectricity mixing screening arrangement, described electric screen is a copper coin.
The utility model is on the vertical direction of fuel tank, and promptly magnetic shield panel is arranged in the place of flux concentrating, and it reduces the supplementary load loss of generation by reducing the magnetic resistance of magnetic circuit; Bending place at the bottom of the fuel tank sidewall at coil both ends and fuel tank cap, fuel tank; arrange the direction of the crooked magnetic line of force of electric screen; magnetic line of force major part is entered in the fuel tank magnetic screen loop, protect simultaneously the case lid of fuel tank and case along etc. the position, prevent the generation of local overheating phenomenon.The utility model can reduce the supplementary load loss of complicated fuel tank greatly, effectively prevents the fuel tank local overheating, satisfies user's requirement to greatest extent.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the integral arrangement front view;
Fig. 3 is the structural representation of fuel tank sidewall and fuel tank cap bending place;
Fig. 4 is that grounding system and case are along the structural representation of locating.
Each label is among the figure: 1, magnetic shield panel, 2, electric screen, 3, oil tank wall, 4, the case edge, 5, fuel tank cap, 6, at the bottom of the fuel tank, 7, grounding system, 8, lead-in wire.
Embodiment
The key point of this patent is to adopt the combining structure of magnetoelectricity shielding, reduces the transformer supplementary load loss and prevents local overheating.
Referring to Fig. 1, when complicated fuel tank internal arranging shielding, need the combination that shields by the integrated use magnetoelectricity, performance advantage separately, preferential on the vertical direction of fuel tank, magnetic screen is arranged in the place of flux concentrating, by reducing the magnetic resistance of magnetic circuit, reduce the supplementary load loss of generation; Arrange electric screen at end winding (oil tank wall complex structure place); as in the case lid at the both ends of coil and the bending place at the bottom of the case; arrange the direction of the crooked magnetic line of force of electric screen; magnetic line of force major part is entered in the fuel tank magnetic screen loop; protect simultaneously the case lid of fuel tank and case along etc. the position, make it not produce local overheating.
Referring to Fig. 2, lead-in wire 8 is nearer from oil tank wall, and is unsuitable for arranging magnetic screen herein, therefore can between lead-in wire 8 and oil tank wall a vertical electric screen be set.The oil tank wall turning is protected.
Referring to Fig. 4, the place in structure more complicated such as case edges is provided with electric screen.
Magnetic shield panel adopts electrical steel strip to be combined into flat board, and every flat board stacks to desired thickness.The gauge scope of magnetic shield panel and electric screen is: magnetic screen: 12-30mm, electric screen: 4-10mm.
Claims (3)
1, a kind of oil tank of transformer magnetoelectricity mixing screening arrangement, it is characterized in that, it comprises magnetic shield panel (1) and electric screen (2), described magnetic shield panel (1) is fixed on the inner vertical walls of oil tank of transformer, described electric screen (2) be installed on the transformer oil chamber interior wall and be positioned at the fuel tank sidewall and fuel tank cap, fuel tank at the bottom of the bending place.
2, according to the described oil tank of transformer magnetoelectricity of claim 1 mixing screening arrangement, it is characterized in that described magnetic shield panel is the flat board of electrical steel strip closed assembly.
3, according to claim 1 or 2 described oil tank of transformer magnetoelectricity mixing screening arrangements, it is characterized in that described electric screen is a copper coin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720138424XU CN201134328Y (en) | 2007-12-28 | 2007-12-28 | Magnet-electricity mixed screening arrangement for oil tank of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720138424XU CN201134328Y (en) | 2007-12-28 | 2007-12-28 | Magnet-electricity mixed screening arrangement for oil tank of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201134328Y true CN201134328Y (en) | 2008-10-15 |
Family
ID=40062596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720138424XU Expired - Fee Related CN201134328Y (en) | 2007-12-28 | 2007-12-28 | Magnet-electricity mixed screening arrangement for oil tank of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201134328Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376423A (en) * | 2011-11-26 | 2012-03-14 | 山东电力设备有限公司 | Shield structure of transformer oil tank and mounting method thereof |
| CN102856056A (en) * | 2011-06-30 | 2013-01-02 | 特变电工沈阳变压器集团有限公司 | Overheating preventing structure for super-large current lead of transformer |
| CN106583887A (en) * | 2016-12-15 | 2017-04-26 | 保定天威电气设备结构有限公司 | Magnetic shielding welding cracking prevention method for power transformer oil tank |
| CN106653309A (en) * | 2016-12-21 | 2017-05-10 | 中国电力科学研究院 | High-capacity alternating current ultra-high-voltage field assembled transformer |
| CN111584202A (en) * | 2020-06-24 | 2020-08-25 | 保定天威保变电气股份有限公司 | Method for on-site treatment of local overheating of transformer box edge |
| CN112912978A (en) * | 2018-10-31 | 2021-06-04 | Abb电网瑞士股份公司 | Transformer and method of manufacturing a transformer |
| CN113571307A (en) * | 2021-07-13 | 2021-10-29 | 西安交通大学 | Power transformer |
-
2007
- 2007-12-28 CN CNU200720138424XU patent/CN201134328Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856056A (en) * | 2011-06-30 | 2013-01-02 | 特变电工沈阳变压器集团有限公司 | Overheating preventing structure for super-large current lead of transformer |
| CN102376423A (en) * | 2011-11-26 | 2012-03-14 | 山东电力设备有限公司 | Shield structure of transformer oil tank and mounting method thereof |
| CN102376423B (en) * | 2011-11-26 | 2013-09-04 | 山东电力设备有限公司 | Shield structure of transformer oil tank and mounting method thereof |
| CN106583887A (en) * | 2016-12-15 | 2017-04-26 | 保定天威电气设备结构有限公司 | Magnetic shielding welding cracking prevention method for power transformer oil tank |
| CN106653309A (en) * | 2016-12-21 | 2017-05-10 | 中国电力科学研究院 | High-capacity alternating current ultra-high-voltage field assembled transformer |
| CN112912978A (en) * | 2018-10-31 | 2021-06-04 | Abb电网瑞士股份公司 | Transformer and method of manufacturing a transformer |
| CN112912978B (en) * | 2018-10-31 | 2022-09-13 | 日立能源瑞士股份公司 | Transformer and method of manufacturing a transformer |
| CN111584202A (en) * | 2020-06-24 | 2020-08-25 | 保定天威保变电气股份有限公司 | Method for on-site treatment of local overheating of transformer box edge |
| CN113571307A (en) * | 2021-07-13 | 2021-10-29 | 西安交通大学 | Power transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201134328Y (en) | Magnet-electricity mixed screening arrangement for oil tank of transformer | |
| CN201562561U (en) | Core type reactor magnetic conducting plate | |
| CN204966256U (en) | Magnetism shielding structure for transformer | |
| CN205318998U (en) | Soft -magnetic paper tinsel of high frequency is around mixing reactor | |
| CN102867647B (en) | A kind of can the direct current support capacitor of effective absorbing high-frequency harmonic wave | |
| CN202384158U (en) | Super-capacity three-phase integrated generator transformer | |
| CN209708818U (en) | A kind of modular wireless charging unit | |
| CN208706393U (en) | A kind of three-phase has load oil tank of transformer | |
| CN201732662U (en) | Magnetic shielding structure of transformer | |
| CN2901514Y (en) | High voltage lift seat with insulation tube | |
| CN110911127A (en) | Integrated transformer and vehicle-mounted charger with same | |
| CN202308867U (en) | Combined type transformer for photovoltaic generation | |
| CN201975239U (en) | Electromagnetic composite shielding device for transformer | |
| CN208271709U (en) | A kind of oil-immersed transformer coil assembly preventing deformation | |
| CN202473514U (en) | Transformer tank with magnetic shielding | |
| CN202307430U (en) | Transformer oil tank with three-dimensional triangular roll iron core | |
| CN202363216U (en) | Insulating structure of iron core clamp of transformer | |
| CN205789464U (en) | A kind of resonance transformer | |
| CN217485266U (en) | Material-saving oil tank with magnetic shielding function | |
| CN218447512U (en) | Magnetic shielding structure for transformer | |
| CN201629215U (en) | Complete-sealing corrugated expansion amorphous alloy transformer | |
| CN210006553U (en) | UFR type magnetic core with elliptic side legs | |
| CN109285666A (en) | A kind of three-phase has load oil tank of transformer | |
| CN206947131U (en) | Reactor | |
| CN211670102U (en) | Magnetic shielding structure and three-phase three-column transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BAODING TIANWEI GROUP TEBIAN ELECTRIC CO., LTD. Free format text: FORMER OWNER: TIANWEI GROUP CO., LTD., BAODING Effective date: 20081114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081114 Address after: No 2399, West Print-Rite Road, Baoding, Hebei: 071056 Patentee after: Baoding Tianwei Group Tebian Electric Co., Ltd. Address before: Baoding, Hebei Province, high street, chemical fiber North Road, 128 Jin Di garden complex building, zip code: 071051 Patentee before: Baoding Tianwei Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20131228 |