CN204835409U - Owner becomes and is qualified for next round of competitions with wall bushing and bottom plate structure - Google Patents
Owner becomes and is qualified for next round of competitions with wall bushing and bottom plate structure Download PDFInfo
- Publication number
- CN204835409U CN204835409U CN201420665946.5U CN201420665946U CN204835409U CN 204835409 U CN204835409 U CN 204835409U CN 201420665946 U CN201420665946 U CN 201420665946U CN 204835409 U CN204835409 U CN 204835409U
- Authority
- CN
- China
- Prior art keywords
- bottom plate
- wall bushing
- base plate
- hole
- wall
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 6
- 230000035699 permeability Effects 0.000 claims description 5
- 239000011800 void material Substances 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000011572 manganese Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model provides an owner becomes and is qualified for next round of competitions with wall bushing and bottom plate structure, it includes the bottom plate of a fixed mounting in the wall body, is fixed with the wall bushing on the bottom plate, the bottom plate be a monoblock rectangle steel sheet, along the three hole of steel sheet longitudinal distribution, the hole centre of a circle point -blank, every hole has a wall bushing with the bolt fastening respectively, the bottom plate be a magnetism structural section, magnetic conductivity <= 1.05 height / austria of magnetism structural section is chooseed for use to the bottom plate, tensile strength >= 530 MPa, and yield strength >= 255 MPa prolongs the rate theta of liter and is 30, the bottom plate carry out welded fastening through pre -buried angle steel on the wall body, interval between the hole shape that sets up on the bottom plate and size of a dimension and three hole is with the size that satisfies the wall bushing and the installation requires and the settlement, it has mounting structure simply, firmly, and convenient to use is reliable, can effectively reduce characteristics such as application temperature guarantee electric wire netting safe operation.
Description
Technical field
The utility model relates to a kind of main transformer and outlet wall bushing and base arrangement, belongs to electric power system high pressure power transmission and distribution technical field.
Background technology
Along with China's economic society high speed development, social power consumption rises year by year, and electric substation's main transformer is exerted oneself also to be increased along with the rising of power consumption, and main transformer low-pressure side electric current is constantly increased.On the other hand, the continuous increase of users' power consumption, makes the main transformer capacity of original design can not meet workload demand, must carry out increase-volume.Above all situation Dou Huishi electric substations main transformer low-pressure side electric current increases, it is serious that the wall bushing fixed base plate of main transformer low-pressure side causes base plate to generate heat because eddy current that electromagnetic induction produces greatly increases, what temperature rising was the most serious even can up to 150 degrees Celsius, limit the actual power load of main transformer, have influence on power grid security and main transformer is exerted oneself.More importantly, equipment exist serious overheated hidden danger entail dangers to grid equipment and personal security.At present, in whole electric power system, also not for reasonable, perfect process, the construction plan of this problem, there is no the example that actual verification contrasts yet.
Summary of the invention
The purpose of this utility model is the deficiency overcoming above-mentioned existence, and provides a kind of mounting structure simple, firmly, easy to use and reliable, can effectively reduce serviceability temperature ensure electric power netting safe running main transformer and outlet wall bushing and base arrangement.
The utility model is achieved by the following technical solution: a kind of main transformer and outlet wall bushing and base arrangement, it comprises one piece of base plate be fixedly mounted in body of wall, base plate is fixed with wall bushing, described base plate is a monoblock rectangular steel plates, along steel plate genesis analysis three holes, point-blank, each hole is fixed with a wall bushing with bolt respectively in the hole center of circle; Described base plate is 20Mn23AlV nonmagnetic steel material.
Described base plate selects magnetic permeability≤1.05 of 20Mn23AlV nonmagnetic steel material high/difficult to understand, and tensile strength >=530MPa, yield strength >=255MPa, prolonging the rate δ of liter is 30.
Described base plate is welded and fixed by the angle steel be embedded on body of wall, and the spacing between the void shape that base plate is arranged and size and three holes is to meet the size of wall bushing and installation requirement and to set.
Base plate described in the utility model has excellent low magnetic conductivity, greatly can reduce the wall bushing base plate heating because eddy current causes and electric energy loss; Its mechanical strength is high, draws high the wall bushing base plate that the performance parameters such as intensity, yield strength and elongation are all better than the use of current electric power system power transmission and distribution field; It is applicable to main transformer in electric power system high pressure power transmission and distribution field and high-tension line wall bushing base plate preferably, the wall bushing base plate heating problem because eddy current causes is solved from source, reduce the electric energy loss because eddy current causes, improve the intensity of wall bushing base plate, improve the supply load level of transforming plant main transformer and the fail safe of wall bushing operation.
The utility model belongs to be improved the one of prior art, and it is simple, firm, easy to use and reliable that it has mounting structure, effectively can reduce serviceability temperature and ensure the features such as electric power netting safe running.
Accompanying drawing explanation
Fig. 1 is integral installation structural representation of the present utility model.
Fig. 2 is the front side mounting structure schematic diagram of base plate described in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail: shown in Fig. 1,2, main transformer described in the utility model and outlet wall bushing and base arrangement, it comprises one piece of base plate 2 be fixedly mounted in body of wall 1, be fixed with wall bushing 3 on a base plate 2, described base plate 2 is a monoblock rectangular steel plates, along steel plate genesis analysis three holes 4, point-blank, each hole 4 is fixed with a wall bushing 3 with bolt 5 respectively in hole 4 center of circle; Described base plate 2 is one without magnetic-type steel, and this is 20Mn23AlV nonmagnetic steel material without magnetic-type steel, is referred to as again 20Mn23AlV height manganese low magnetic steel, its chemical composition percentage is: C:0.14 ~ 0.20, Mn:21.5 ~ 25.0, AI:1.50 ~ 2.50, Si :≤0.50, S :≤0.03, P :≤0.03.
Described base plate 2 selects magnetic permeability≤1.05 of 20Mn23AlV nonmagnetic steel material high/difficult to understand, only be equivalent to the permeability of air, well below the relative permeability of conventional steel sheet 3000 ~ 5000, the electromagnetic field limited from source due to the big current generation in wall bushing forms eddy current in wall bushing base plate, the generation fundamentally eliminating eddy current and the wall bushing base plate heating problem caused by eddy current, make the supply load of main transformer no longer by the restriction of wall bushing base plate heating; Tensile strength >=530MPa, yield strength >=255MPa, prolonging the rate θ of liter is 30.
Described base plate 2 is welded and fixed by the angle steel 6 be embedded on body of wall 1, thus realizes the support of wall bushing and fixing; Spacing between the hole 4 shape and size size that base plate 2 is arranged and three holes sets to meet the size of wall bushing 3 and installation requirement.
Claims (3)
1. a main transformer and outlet wall bushing and base arrangement, it comprises one piece of base plate be fixedly mounted in body of wall, base plate is fixed with wall bushing, it is characterized in that described base plate is a monoblock rectangular steel plates, along steel plate genesis analysis three holes, point-blank, each hole is fixed with a wall bushing with bolt respectively in the hole center of circle; Described base plate is 20Mn23AlV nonmagnetic steel material.
2. main transformer according to claim 1 and outlet wall bushing and base arrangement, it is characterized in that described base plate selects magnetic permeability≤1.05 of 20Mn23AlV nonmagnetic steel material high/difficult to understand, tensile strength >=530MPa, yield strength >=255MPa, prolonging the rate δ of liter is 30.
3. main transformer according to claim 1 and 2 and outlet wall bushing and base arrangement, it is characterized in that described base plate is welded and fixed by the angle steel be embedded on body of wall, the spacing between the void shape that base plate is arranged and size and three holes is to meet the size of wall bushing and installation requirement and to set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420665946.5U CN204835409U (en) | 2014-11-10 | 2014-11-10 | Owner becomes and is qualified for next round of competitions with wall bushing and bottom plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420665946.5U CN204835409U (en) | 2014-11-10 | 2014-11-10 | Owner becomes and is qualified for next round of competitions with wall bushing and bottom plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204835409U true CN204835409U (en) | 2015-12-02 |
Family
ID=54692968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420665946.5U Expired - Fee Related CN204835409U (en) | 2014-11-10 | 2014-11-10 | Owner becomes and is qualified for next round of competitions with wall bushing and bottom plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204835409U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846374A (en) * | 2016-05-05 | 2016-08-10 | 成都君禾天成科技有限公司 | Wall bushing with high dustproof capability |
| CN106764092A (en) * | 2017-01-20 | 2017-05-31 | 合肥志功机电工程有限公司 | Bus structure through walls, bus sealing to through the wall structure |
| CN107611881A (en) * | 2017-10-31 | 2018-01-19 | 现代重工(中国)电气有限公司 | A kind of Contiuum type middle-placed switch cabinet wall bushing |
-
2014
- 2014-11-10 CN CN201420665946.5U patent/CN204835409U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846374A (en) * | 2016-05-05 | 2016-08-10 | 成都君禾天成科技有限公司 | Wall bushing with high dustproof capability |
| CN106764092A (en) * | 2017-01-20 | 2017-05-31 | 合肥志功机电工程有限公司 | Bus structure through walls, bus sealing to through the wall structure |
| CN106764092B (en) * | 2017-01-20 | 2019-05-03 | 合肥志功机电工程有限公司 | Bus sealing to through the wall structure |
| CN107611881A (en) * | 2017-10-31 | 2018-01-19 | 现代重工(中国)电气有限公司 | A kind of Contiuum type middle-placed switch cabinet wall bushing |
| CN107611881B (en) * | 2017-10-31 | 2024-03-22 | 现代重工(中国)电气有限公司 | Wall bushing for integrated centrally installed switchgear |
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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: 20151202 Termination date: 20201110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |