CN203587789U - Device for simulating iron-core material magnetic performance of transformer after service - Google Patents
Device for simulating iron-core material magnetic performance of transformer after service Download PDFInfo
- Publication number
- CN203587789U CN203587789U CN201320832715.4U CN201320832715U CN203587789U CN 203587789 U CN203587789 U CN 203587789U CN 201320832715 U CN201320832715 U CN 201320832715U CN 203587789 U CN203587789 U CN 203587789U
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- yoke
- iron
- test sample
- silicon steel
- transformer
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- 239000011162 core material Substances 0.000 title claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 27
- 229910052742 iron Inorganic materials 0.000 claims abstract description 24
- 239000003921 oil Substances 0.000 claims abstract description 14
- 239000002828 fuel tank Substances 0.000 claims description 15
- 230000005284 excitation Effects 0.000 abstract description 8
- 230000004907 flux Effects 0.000 abstract description 8
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000002964 excitative effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model relates to a device for simulating the iron-core material magnetic performance of a transformer after service, and pertains to the technical field of power transformer electromagnetic measurements. The device adopts the following technical scheme that the device includes a U-shaped upper iron yoke (3), a U-shaped yoke (4), an excitation coil (5), a measuring coil (2), an iron yoke support (8), an oil tank (6), an oil tank base (7), a fastening bolt (10) and a positioning bolt (9), wherein the measuring coil is wound onto a test sample, the test sample is placed into the oil tank, the measuring coil is connected into a fluxmeter, excitation is applied to the excitation coil, the fluxmeter can be used to display the average flux density in the test sample on a real-time basis, and the excitation is added to a specified flux density value. The test sample is taken out after operation, and the attribute measurements, such as the magnetic performance, the microstructure, etc., and magnetic performance change study is performed. The device of the utility model simulate the real operation condition of various transformer iron-core materials to provide for providing an operating environment similar to the transformer iron core for the orientated silicon steel test sample, and the orientated silicon steel test sample can be easily taken out for magnetic performance measurements.
Description
Technical field
The utility model relates to the device of transformer core material magnetic property after a kind of Simulated Service, belongs to power transformer Techniques in Electromagnetic Measurement field.
Background technology
The magnetic property sample data that orientation silicon steel manufacturer provides is generally in its pre-test of dispatching from the factory and obtains.The designing and calculating of transformer core be all based on manufacturer, provide or by the data that the magnetic property of material is measured.Power transformer product completes and after long-time running, whether its magnetic property with orientation silicon steel unshakable in one's determination and micromechanism etc. change, and the impact that these change transformer core entirety magnetic property, is difficult to measure assessment.Because of after iron core completes, become as a whole, and transformer is substantially all in running status, do not possess and from iron core, take out the condition that part silicon steel material is tested.
Utility model content
The utility model object is to provide the device of transformer core material magnetic property after a kind of Simulated Service, can simulate the true operating condition of range transformer iron core, for orientation silicon steel sample provides with transformer core, has similar running environment.And be easy to take out orientation silicon steel sample and carry out magnetic property measurement, solve the problem existing in background technology.
The technical solution of the utility model is:
The device of transformer core material magnetic property after a kind of Simulated Service, comprise U-shaped upper yoke, U-shaped lower yoke, magnetizing coil, measuring coil, iron yoke support, fuel tank, oil tank base support, fastening bolt and bolt, the upper coiling magnetizing coil respectively of U-shaped upper yoke and U-shaped lower yoke; U-shaped upper yoke is identical with magnetizing coil series connection and the number of turn on U-shaped lower yoke, U-shaped upper yoke and U-shaped lower yoke are symmetric shape alignment, and fix by iron yoke support, fastening bolt, bolt, in the middle of U-shaped upper yoke and U-shaped lower yoke, place the fuel tank being supported by oil tank base support, in fuel tank, place orientation silicon steel sample, orientation silicon steel sample is tied with measuring coil, by the magnetic flux density in measuring coil and fluxmeter Real-Time Monitoring orientation silicon steel sample.
Described bolt, has fixing U-shaped upper yoke and adjusts the effect of U-shaped upper yoke height, and when having air gap in magnetic circuit, in order to reach, to set magnetic close, compares the driving voltage of increase greatly needing when without air gap.Adjusting U-shaped upper yoke height is in order to reduce iron yoke with the air gap between sample, thereby reduces driving voltage, reduces the requirement to excitation power supply.
The sectional area of U-shaped upper yoke and U-shaped lower yoke is greater than orientation silicon steel sample sectional area, and this all flows into after orientation silicon steel sample the less magnetic flux in U-shaped upper yoke and U-shaped lower yoke, has formed larger magnetic flux density, thereby reduces excitatory difficulty.
Described orientation silicon steel sample, namely tested sample, the trade mark of its oriented silicon steel disc can be arbitrarily, its work magnetic is close can, as required for being not more than the arbitrary value of saturation magnetic induction, develop research for magnetic property of oriented silicon steel.
Good effect of the present utility model is: actual operating mode that can analogue transformer, and tested sample is operated under the similar condition of same transformer core, as required, can be tested sample provides and is not more than saturation magnetic induction and is worth arbitrarily.And tested sample can be taken out measurement easily, for siliconized plate magnetic property develops the condition of providing convenience of studying.Experimental provision is made simple, and lower to the requirement of experimental facilities, experimental implementation is simple and easy to do.
Accompanying drawing explanation
Fig. 1 is the utility model electromagnetic component schematic diagram;
Fig. 2 is the utility model tested sample stack mode schematic diagram;
Fig. 3 is the utility model general assembly structural representation;
Fig. 4 is the utility model iron yoke support schematic diagram;
Fig. 5 is the utility model oil tank base support schematic diagram;
Fig. 6 is the utility model fuel tank part schematic diagram;
In figure: tested sample 1, measuring coil 2, U-shaped upper yoke 3, U-shaped lower yoke 4, magnetizing coil 5, fuel tank 6, oil tank base support 7, iron yoke support 8, bolt 9, fastening bolt 10.
Embodiment
Below in conjunction with accompanying drawing, by example, the utility model is described in further detail.
A device for transformer core material magnetic property after Simulated Service, comprises U-shaped upper yoke 3, U-shaped lower yoke 4, magnetizing coil 5, measuring coil 2, iron yoke support 7, fuel tank 6, oil tank base support 7, fastening bolt 10 and bolt 9; The upper coiling magnetizing coil respectively of U-shaped upper yoke and U-shaped lower yoke; U-shaped upper yoke is identical with magnetizing coil series connection and the number of turn on U-shaped lower yoke, U-shaped upper yoke and U-shaped lower yoke are symmetric shape alignment, and fix by iron yoke support, fastening bolt, bolt, in the middle of U-shaped upper yoke and U-shaped lower yoke, place the fuel tank being supported by oil tank base support, in fuel tank, place orientation silicon steel sample, orientation silicon steel sample is tied with measuring coil, by the magnetic flux density in measuring coil and fluxmeter Real-Time Monitoring orientation silicon steel sample.
This device adopts the version of Double layer iron yoke, and the sectional area of Double layer iron yoke is greater than sample sectional area, and this all flows into after sample the less magnetic flux in Double layer iron yoke, has formed larger magnetic flux density, thereby reduces excitatory difficulty.
Described bolt, has the effect of fixing upper yoke and adjustment upper yoke height.When having air gap in magnetic circuit, in order to reach, to set magnetic close, compares the driving voltage of increase greatly needing when without air gap.Adjusting iron yoke height is in order to reduce iron yoke with the air gap between orientation silicon steel sample, thereby reduces driving voltage, reduces the requirement to excitation power supply.
The utility model is embodiment more specifically: 1. make the identical U-shaped iron yoke of two physical dimension and technique, U-shaped upper yoke and U-shaped lower yoke, the upper coiling magnetizing coil respectively of U-shaped upper yoke and U-shaped lower yoke; U-shaped upper yoke is identical with magnetizing coil series connection and the number of turn on U-shaped lower yoke; 2. U-shaped iron yoke is fixed on iron yoke support, wherein lower yoke is placed on the base of iron yoke support, and upper yoke is fixed by the fastening folder that fastening bolt is housed on iron yoke support top; On iron yoke support, bolt is housed, adjustable upper yoke height, thus adjust the air gap between upper yoke and sample; 3. oil tank base support is arranged on iron yoke bracket base, and fuel tank is placed on oil tank base support; 4. oriented silicon steel disc is sheared, built up tested sample, use Binding material colligation, by the tested sample coiling measuring coil of handling well; 5. the tested sample that winds measuring coil is put into fuel tank; Apply excitation 6. to the magnetizing coil of Double layer iron yoke, the close measuring coil by coiling in tested sample of work magnetic in tested sample is measured in real time, the operating condition of analogue transformer, increases excitation until to reach work magnetic identical with simulated transformer core in tested sample close; 7. after operation, directly take out tested sample, carry out magnetic property and microtexture measurement, the orientation silicon steel magnetism of material energy variation tendency after being on active service is studied.
The described tested sample by winding measuring coil is put into fuel tank, if the actual working environment of simulation oil immersed type transformer core, oiling in fuel tank.
Described tested sample, i.e. orientation silicon steel sample, the trade mark of its oriented silicon steel disc can be arbitrarily, its work magnetic is close can be as required for being not more than the arbitrary value of saturation magnetic induction, for the magnetic property of oriented silicon steel after being on active service is developed to research.
Claims (2)
1. a device for transformer core material magnetic property after Simulated Service, is characterized in that: comprise U-shaped upper yoke (3), U-shaped lower yoke (4), magnetizing coil (5), measuring coil (2), iron yoke support (8), fuel tank (6), oil tank base support (7), fastening bolt (10) and bolt (9); The upper coiling magnetizing coil respectively of U-shaped upper yoke and U-shaped lower yoke; U-shaped upper yoke is identical with magnetizing coil series connection and the number of turn on U-shaped lower yoke, U-shaped upper yoke and U-shaped lower yoke are symmetric shape alignment, and fix by iron yoke support, fastening bolt, bolt, in the middle of U-shaped upper yoke and U-shaped lower yoke, place the fuel tank being supported by oil tank base support, in fuel tank, place orientation silicon steel sample, orientation silicon steel sample is tied with measuring coil.
2. the device of transformer core material magnetic property after Simulated Service according to claim 1, is characterized in that: the sectional area of U-shaped upper yoke and U-shaped lower yoke is greater than orientation silicon steel sample sectional area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320832715.4U CN203587789U (en) | 2013-12-17 | 2013-12-17 | Device for simulating iron-core material magnetic performance of transformer after service |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320832715.4U CN203587789U (en) | 2013-12-17 | 2013-12-17 | Device for simulating iron-core material magnetic performance of transformer after service |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203587789U true CN203587789U (en) | 2014-05-07 |
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ID=50585686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320832715.4U Expired - Lifetime CN203587789U (en) | 2013-12-17 | 2013-12-17 | Device for simulating iron-core material magnetic performance of transformer after service |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203587789U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109425840A (en) * | 2017-08-30 | 2019-03-05 | 河北工业大学 | A kind of nanocrystalline rotary magnetic characteristic test system and measurement method |
| CN110297195A (en) * | 2019-07-29 | 2019-10-01 | 海南金盘电气研究院有限公司 | A kind of transformer core Distribution of Magnetic Field detection system |
-
2013
- 2013-12-17 CN CN201320832715.4U patent/CN203587789U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109425840A (en) * | 2017-08-30 | 2019-03-05 | 河北工业大学 | A kind of nanocrystalline rotary magnetic characteristic test system and measurement method |
| CN109425840B (en) * | 2017-08-30 | 2021-05-25 | 河北工业大学 | Nanocrystalline rotating magnetic property testing system and measuring method |
| CN110297195A (en) * | 2019-07-29 | 2019-10-01 | 海南金盘电气研究院有限公司 | A kind of transformer core Distribution of Magnetic Field detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 071056 West Road, Hebei, Baoding, No. 2222, No. Patentee after: BAODING TIANWEI BAOBIAN ELECTRIC Co.,Ltd. Address before: 071051, Hebei City, Baoding province ginkgo Road, No. 198 Jin Di garden complex Patentee before: BAODING TIANWEI GROUP Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |