CN203275445U - Equalizing ring with multifunctional heterotype spring structure for transformer performance test - Google Patents
Equalizing ring with multifunctional heterotype spring structure for transformer performance test Download PDFInfo
- Publication number
- CN203275445U CN203275445U CN 201320204277 CN201320204277U CN203275445U CN 203275445 U CN203275445 U CN 203275445U CN 201320204277 CN201320204277 CN 201320204277 CN 201320204277 U CN201320204277 U CN 201320204277U CN 203275445 U CN203275445 U CN 203275445U
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- China
- Prior art keywords
- transformer
- test
- equalizing ring
- grading ring
- ring
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- 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
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- 238000011056 performance test Methods 0.000 title claims abstract description 9
- 239000004020 conductor Substances 0.000 claims abstract description 16
- 238000005336 cracking Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 5
- 238000001914 filtration Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 235000008429 bread Nutrition 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- 230000005684 electric field Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Testing Relating To Insulation (AREA)
Abstract
The utility model provides an equalizing ring with a multifunctional heterotype spring structure for a transformer performance test. The equalizing ring is in the shape of a circular ring wound with a spring, wherein a cross section of the circular ring is in the shape of the cross section of round steamed bread; a diameter of the equalizing ring is one time or twice of that of a lead-out conductor of a transformer. The beneficial effects are that the equalizing ring with such a structure solves a problem of insulating oil cracking caused in an alternating current voltage-withstand test, and reduces problems of re-filtering of the insulating oil and influence on local discharge. The equalizing ring can be used in the transformer alternating current voltage-withstand test and a local discharge test, and can also be applied to other tests. The equalizing ring adopts a spring winding structure, can be very conveniently sleeved on the transformer lead-out conductor during installation, has the advantages such as simple structure, convenient installation and difficulty in damage, can be applied to many electric power test occasions, and thus has very vast application prospects.
Description
Technical field
The utility model relates to a kind of accessory of transformer performance test, and particularly a kind of transformer performance is tested the grading ring with multifunctional special-shaped spring structure.
Background technology
Transformer is the equipment of electric energy transmitting, because the nervous GIS of town site is widely used, and the power cable connected mode that connected GIS and transformer adopting.When doing the withstand voltage and local discharge test of induction, transformer must connect a disconnection, the oily cracking of the grease chamber of exit when causing transformer test thus, and impact also high-volume strengthens than overall situation on local discharge test.Need transformer oil is filtered again after each test, increased cost and shone into the installation period prolongation.
Summary of the invention
The purpose of this utility model is to solve the transformer test process to have problems, the one, avoid the exit seed cell, be commonly called as the problem of the transformer oil cracking of trunk, the 2nd, reduce the impact that local discharge test is produced and cause the test figure deviation, can improve the accuracy of transformer test data, can reduce the test again of filtering oil for transformer, oil and reduce workman's labor capacity, safe and reliable, and improve a kind of transformer performance test with the grading ring of multifunctional special-shaped spring structure.
For achieving the above object, the technical solution adopted in the utility model is to provide the test of a kind of transformer performance with the grading ring of multifunctional special-shaped spring structure, wherein: described grading ring be a spring holder be coiled into circular, the cross sectional shape of annulus is circular steamed bun cross sectional shape, and the diameter of grading ring is 1～2 times of transformer conductor introduction diameter.
Effect of the present utility model is the grading ring of this structure, has solved the problem of the insulating oil cracking that causes in the AC voltage withstand test, and having reduced insulating oil need be in the problem of the problem of inferior filtration and the film playback of playing a game sound.This device can be used on transformer alternating withstand voltage test drawn game and puts in process of the test, also can be used in other tests.Adopted spring coiling structure, during installation, very convenient being enclosed within on the transformer conductor introduction gets final product, and has the advantages such as simple in structure, easy for installation, not fragile.Can be applied in many power test occasions, application prospect is more wide.
Description of drawings
Fig. 1 is that transformer performance of the present utility model is tested the Equalized voltage ring construction schematic diagram with multifunctional special-shaped spring structure;
The A-A cut-open view of Fig. 2 Fig. 1
Fig. 3 is that grading ring of the present utility model uses view.
In figure:
1, grading ring 2, conductor introduction
Embodiment
Reaching by reference to the accompanying drawings embodiment is illustrated the grading ring of transformer performance test of the present utility model with multifunctional special-shaped spring structure.
Transformer performance test of the present utility model is based in the insulating property of check transformer alternating withstand voltage test with the grading ring design philosophy of multifunctional special-shaped spring structure, must disconnect when withstand voltage and the local discharge test for cable and connection transformer point, the wiring copper rod that transformer is drawn in its grease chamber because electric field intensity is concentrated with easily causing the high-volume increase of point discharge or office, larger on the test findings impact, and cause the insulating oil cracking.This test has effectively solved the bottleneck problem in above-mentioned test with the grading ring of multifunctional special-shaped spring structure.
As shown in Figure 1, 2, transformer performance test of the present utility model with the Equalized voltage ring construction of multifunctional special-shaped spring structure is, described grading ring 1 be a spring holder be coiled into circular, the cross sectional shape of annulus is circular steamed bun cross sectional shape, and the diameter of grading ring 1 is 1～2 times of transformer conductor introduction 2 diameters.The internal diameter of described grading ring is less than the external diameter of transformer conductor introduction 2.
Transformer performance test of the present utility model is achieved in that with the function of the grading ring of multifunctional special-shaped spring structure
Concentrate because the effect of this grading ring has changed the electric field that end conductor causes due to the tip, easily form discharge and easily cause and makes the cracking of formula insulating oil.Improve the Electric Field Distribution of end conductor after installing grading ring additional, made Electric Field Distribution more evenly improve the Electric Field Distribution of end conductor, can not cause when withstand voltage discharge to prevent the cracking that transformer has normal.This grading ring is easy to use, can reuse, and spring property is installed owing to having, dismounting is easily time saving and energy saving.
Test of the present utility model adopts the bronze wire disk of material to be coiled into the spring shape with the grading ring of multifunctional special-shaped spring structure, and this grading ring 1 internal diameter of made is less than transformer conductor introduction 2 external diameters; The cross sectional shape of grading ring 1 is circular steamed bun cross sectional shape, and its diameter is 1～2 times of transformer conductor introduction 2 diameters.
This grading ring 1 is enclosed within conductor introduction 2 ends before test, as shown in Figure 3.
Test of the present utility model can be generalized in other power equipment withstand voltage tests with the grading ring usable range of multifunctional special-shaped spring structure.This grading ring adopts special-shaped annular form, can adopt the different-diameter grading ring for different equipment.
Claims (2)
1. transformer performance test is with the grading ring of multifunctional special-shaped spring structure, it is characterized in that: described grading ring be a spring holder be coiled into circular, the cross sectional shape of annulus is circular steamed bun cross sectional shape, the external diameter of grading ring is greater than transformer conductor introduction diameter, less than 2 times of transformer conductor introduction diameter.
2. transformer performance according to claim 1 is tested the grading ring with multifunctional special-shaped spring structure, and it is characterized in that: the internal diameter of described grading ring is less than the external diameter of transformer conductor introduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320204277 CN203275445U (en) | 2013-04-22 | 2013-04-22 | Equalizing ring with multifunctional heterotype spring structure for transformer performance test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320204277 CN203275445U (en) | 2013-04-22 | 2013-04-22 | Equalizing ring with multifunctional heterotype spring structure for transformer performance test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203275445U true CN203275445U (en) | 2013-11-06 |
Family
ID=49505822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320204277 Expired - Fee Related CN203275445U (en) | 2013-04-22 | 2013-04-22 | Equalizing ring with multifunctional heterotype spring structure for transformer performance test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203275445U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318711A (en) * | 2018-03-01 | 2018-07-24 | 国网河南省电力公司电力科学研究院 | It is a kind of can with pressure radius adjust the special grading ring of experiment |
-
2013
- 2013-04-22 CN CN 201320204277 patent/CN203275445U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318711A (en) * | 2018-03-01 | 2018-07-24 | 国网河南省电力公司电力科学研究院 | It is a kind of can with pressure radius adjust the special grading ring of experiment |
| CN108318711B (en) * | 2018-03-01 | 2024-01-30 | 国网河南省电力公司电力科学研究院 | Special equalizing ring capable of being adjusted along with equalizing radius for test |
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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: 20131106 Termination date: 20200422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |