CN108318711B - Special equalizing ring capable of being adjusted along with equalizing radius for test - Google Patents
Special equalizing ring capable of being adjusted along with equalizing radius for test Download PDFInfo
- Publication number
- CN108318711B CN108318711B CN201810171693.9A CN201810171693A CN108318711B CN 108318711 B CN108318711 B CN 108318711B CN 201810171693 A CN201810171693 A CN 201810171693A CN 108318711 B CN108318711 B CN 108318711B
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- ring
- special
- equalizing
- test
- hook
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- 238000012360 testing method Methods 0.000 title claims abstract description 56
- 238000002474 experimental method Methods 0.000 claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 19
- 229910052782 aluminium Inorganic materials 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention discloses a special equalizing ring capable of being adjusted along with an equalizing radius, which comprises an experiment special equalizing ring body, a supporting plate arranged in the experiment special equalizing ring, three supporting bars which are identical in structure size, mutually 120 degrees and provided with sliding tracks, three hooks with identical structure sizes, a pull ring and a lifting hook, wherein the hooks are correspondingly arranged with the supporting bars, and a perforation is arranged in the center of the supporting plate; one end of each of the three support bars is connected with a common support plate, and the other end of each of the three support bars is connected with the inner wall of the special equalizing ring for the test. According to the invention, the special equalizing ring for the test adopts a spring hook type design, the hook can be opened by utilizing self gravity during hoisting, after the hook hooks the equalizing ring for operation, the hook naturally contracts to tighten the hook outwards along the equalizing radius, so that the special equalizing ring for the test can be suitable for the conditions of various equalizing rings for operation with different equalizing radii, is convenient and stable to fix and convenient to take down, and greatly improves the working efficiency of the high-voltage electric test.
Description
Technical Field
The invention relates to the technical field of high-voltage electric test equipment, in particular to a special grading ring capable of being adjusted along with a grading radius.
Background
At present, in the field high-voltage electric tests of power plants, substations and the like, particularly the field tests of long-time induction voltage resistance, partial discharge detection and the like of high-voltage electric equipment such as transformers, circuit breakers and the like, test equalizing rings are often used. Because the field test voltage of the high-voltage electric equipment often reaches 1.5 times or more of the normal running voltage, and meanwhile, the local discharge detection test requires to strictly control the background discharge quantity monitored by the environment and prevent erroneous judgment of test data caused by background interference, the corona discharge caused by local electric field distortion due to overhigh voltage needs to be avoided. Therefore, before the field test of high-voltage electric equipment such as transformers and circuit breakers, the equalizing rings used in the operation and installed at the ends of the high-voltage bushings of the high-voltage electric equipment are removed and replaced by special equalizing rings for the test, wherein the equalizing radius of the special equalizing rings is larger than that of the equalizing rings used in the operation, so that corona discharge caused by local electric field distortion of the equalizing rings used in the operation, which are smaller in equalizing radius and are caused by overhigh voltage, is avoided as much as possible. In the existing operation, firstly, the equalizing ring for operation is usually removed, then the equalizing ring special for test is installed, after the test is finished, the equalizing ring special for test is removed, and finally, the equalizing ring for operation is reinstalled, wherein the whole process needs two disassembling processes, and the unnecessary extension of the construction period is inevitably caused; and the whole process of removing and installing has the risk of mistakenly touching the live interval or the high-voltage insulating sleeve, so the safety is lower.
Disclosure of Invention
The invention aims to provide the special equalizing ring for the test, which can be adjusted along with the equalizing radius, the equalizing ring for the operation of the electric equipment is not required to be dismantled, the special equalizing ring for the test is only required to be fixed on the equalizing ring for the operation through the hooks, the high-voltage electric test efficiency is improved, and the personal and equipment risks of workers due to the disassembling and the installation of the equalizing ring at the end part of the high-voltage sleeve are reduced.
The invention adopts the technical scheme that:
the special equalizing ring comprises an special equalizing ring body 1 for experiments and also comprises a supporting plate arranged in the special equalizing ring 1 for experiments, three supporting bars which are identical in structure size, mutually 120 degrees and provided with sliding tracks, three hooks 3 which are identical in structure size, a pull ring 11 and a lifting hook 10, wherein the hooks 3 are correspondingly arranged with the supporting bars, and a perforation is arranged in the center of the supporting plate; one end of each of the three support bars is connected with a common support plate, and the other end of each of the three support bars is connected with the inner wall of the special equalizing ring 1 for the test;
the support bar be the cavity cylinder, be provided with slide rail 7 in the cavity cylinder support bar, be provided with spring 4 and couple sliding block 8 in the couple slide rail 7, the one end of spring 4 is fixed in the couple slide rail 7 one end that is close to experimental special equalizer ring 1 through spring fixing bolt 5, the other end of spring 4 is connected through couple sliding block 8 with corresponding couple 3, three couple sliding block 8 on still correspond respectively and be connected with a traction wire rope 9, the other end of three traction wire rope 9 gathers the perforation that passes the backup pad center, fixed the setting is on pull ring 11, lifting hook 10 is fixed to be set up on pull ring 11.
The supporting plate adopts a supporting aluminum plate 12, the supporting bar adopts a supporting aluminum strip 6, and the sliding rail 7 and the hook sliding block 8 are all made of aluminum materials, so that the overall mass is greatly reduced.
The inner and outer structures of the supporting aluminum strips 6 and the supporting aluminum plates 12 are smooth and round, and unnecessary corona interference caused by abrupt surface shapes is prevented.
When the special equalizing ring 1 for the test is lifted in the air, the distance between the hook part of the hook 3 and the center of the special equalizing ring 1 for the test is not greater than the radius of the equalizing ring 2 for operation.
When the spring 4 is in an initial state, the distance between the bent hook part of the hook 3 and the center of the special equalizing ring 1 for test is smaller than the radius of the equalizing ring 2 for operation.
The diameter of the pull ring 11 is larger than the diameter of the perforation in the center of the support plate.
The length of the traction steel wire rope 9 is the same as the perforation distance between the hook sliding block 8 and the center of the supporting plate when the spring 4 is in the initial state.
The special equalizing ring for the test adopts a spring hook type design, and before the high-voltage electric power field test, the self-contained equalizing ring for operation of the electric equipment does not need to be removed, and the special equalizing ring for the test only needs to be fixed on the equalizing ring for operation through the hooks. The special equalizing ring for the test can utilize self gravity to open the hook when being hoisted, after the hook hooks the equalizing ring for operation, the spring naturally contracts to enable the hook to tighten outwards along the equalizing radius, the special equalizing ring for the test can be suitable for the conditions of the equalizing rings for operation with various equalizing radii, the special equalizing ring for the test is convenient and stable to fix and is convenient and fast to take down, the working efficiency of the high-voltage electric test is greatly improved, and the personal and equipment risks existing when the equalizing ring at the end of the high-voltage sleeve is detached and installed by workers are also greatly reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
As shown in fig. 1, the invention comprises a special grading ring body 1 for experiments, and also comprises a supporting plate arranged in the special grading ring 1 for experiments, three supporting bars which are identical in structure size, mutually take 120 degrees and are provided with sliding tracks, three hooks 3 which are identical in structure size, a pull ring 11 and a lifting hook 10, wherein the hooks 3 are correspondingly arranged with the supporting bars, and a perforation is arranged in the center of the supporting plate; one end of each of the three support bars is connected with a common support plate, and the other end of each of the three support bars is connected with the inner wall of the special equalizing ring 1 for the test; the supporting plate adopts a supporting aluminum plate 12, the supporting bar adopts a supporting aluminum strip 6,
the supporting aluminum strip 6 is a hollow cylinder aluminum pipe, a sliding rail 7 is arranged in the hollow cylinder aluminum pipe, a spring 4 and a hook sliding block 8 are arranged in the hook sliding rail 7, and the sliding rail 7 and the hook sliding block 8 are made of aluminum materials, so that the overall mass is greatly reduced.
One end of the spring 4 is fixed at one end of the hook sliding track 7, which is close to the special equalizing ring 1 for the test, through the spring fixing bolt 5, the other end of the spring 4 is connected with the corresponding hook 3 through the hook sliding block 8 made of aluminum, the hook sliding block 8 can slide on the hook sliding track 7 according to the inner diameter distance, and the spring 4 controls the sliding distance of the hook 3 through the hook sliding block 8. The three hook sliding blocks 8 are correspondingly connected with traction steel wire ropes 9 respectively, the other ends of the three traction steel wire ropes 9 are gathered and pass through the through holes in the center of the supporting plate, the three traction steel wire ropes are fixedly arranged on the pull ring 11, and the lifting hook 10 is fixedly arranged on the pull ring 11 and used for lifting the lifting hook of the lifting vehicle. The special equalizing ring 1 for the test can utilize self gravity to open the hook 3 during hoisting, at the moment, the spring 4 is opened along the hook sliding track 7, after the hook 3 hooks the equalizing ring 2 for operation, the spring 4 naturally contracts due to self elastic force, so that the hook 3 is outwards tightened along the equalizing radius, after the three hooks 3 are tightened and hook the equalizing ring 2 for operation, the requirement of the equalizing radius for the test can be increased without dismantling the equalizing ring for operation of the electric equipment, and the equalizing ring for operation with different equalizing radii can be suitable for the conditions.
The diameter of the pull ring 11 is larger than that of the perforation in the center of the supporting plate, so that the pull ring 11 is not separated from the supporting plate, and the use and the operation are convenient. The inner and outer structures of the supporting aluminum strips 6 and the supporting aluminum plates 12 are smooth and round, and unnecessary corona interference caused by abrupt surface shapes is prevented.
When the special equalizing ring 1 for the test is lifted in the air, the distance between the hook part of the hook 3 and the center of the special equalizing ring 1 for the test is not greater than the radius of the equalizing ring 2 for operation. The three traction steel wire ropes 9 are appropriate in length, so that the requirement of adjusting the sliding distance of the hook 3 can be met, and unnecessary local electric field distortion caused by overlong length can be avoided.
When the spring 4 is in an initial state, the distance between the bent hook part of the hook 3 and the center of the special equalizing ring 1 for test is smaller than the radius of the equalizing ring 2 for operation. The spring 4 has moderate elasticity and good elasticity. The self-gravity energy of the special equalizing ring 1 for the test can be used for opening the spring 4 in the hoisting process. And the plastic is not easy to deform after being opened and contracted, and has good elastic performance. The length of the traction steel wire rope 9 is the same as the perforation distance between the hook sliding block 8 and the center of the supporting plate when the spring 4 is in the initial state.
When the invention is used, firstly, the hook 3 is opened by utilizing the self gravity of the invention when the special equalizing ring 1 for the test is hoisted, namely, when the special equalizing ring 1 for the test is hoisted, the spring 4 is unfolded along the hook sliding track 7, the position of the hook 3 is positioned in the radius of the equalizing ring 2 for the operation, the special equalizing ring 1 for the test is hoisted and is placed outside the equalizing ring 2 for the operation, at the moment, the special equalizing ring 1 for the test is slowly put down, the spring 4 naturally contracts due to self elasticity, the hook 3 is tightened outwards along the equalizing radius, after the equalizing ring 2 for the operation is hooked by the hook 3, after the equalizing ring 2 for the operation is tightened and hooked by the three hooks 3, the placing of a high-voltage electric test is completed, after the experiment is completed, the hook 10 is hoisted by a crane, and the hook 3 is pulled towards the center of the equalizing ring 2 for the operation under the action of the steel wire rope 9.
The above-described embodiments are intended to illustrate the present invention, not to limit it, and any modifications and variations made to the present invention within the spirit of the present invention and the scope of the appended claims fall within the scope of the present invention.
Claims (7)
1. The utility model provides a special equalizer ring of experiment that can adjust along with voltage-sharing radius, includes the special equalizer ring body of experiment, its characterized in that: the device also comprises a supporting plate arranged in the special equalizing ring (1) for the test, three supporting strips which have the same structure and size and are 120 degrees mutually and provided with sliding tracks, three hooks (3) with the same structure and size, a pull ring (11) and a lifting hook (10), wherein the hooks (3) are arranged corresponding to the supporting strips, and a perforation is arranged in the center of the supporting plate; one end of each of the three support bars is connected with a common support plate, and the other end of each support bar is connected with the inner wall of the special equalizing ring (1) for the test;
the support bar be the cavity cylinder, be provided with sliding track (7) in the cavity cylinder support bar, be provided with spring (4) and couple sliding block (8) in couple sliding track (7), the one end of spring (4) is fixed in couple sliding track (7) and is close to the one end of experimental special equalizer ring (1) through spring fixing bolt (5), the other end of spring (4) is connected through couple sliding block (8) with corresponding couple (3), three couple sliding block (8) on still correspond respectively and be connected with one traction wire rope (9), the other end of three traction wire rope (9) is collected and is passed the perforation in backup pad center, fixed setting is on pull ring (11), lifting hook (10) are fixed to be set up on pull ring (11).
2. The special grading ring for test capable of being adjusted along with the grading radius according to claim 1, wherein the grading ring is characterized in that: the supporting plate adopts a supporting aluminum plate (12), the supporting bar adopts a supporting aluminum bar (6), and the sliding rail (7) and the hook sliding block (8) are all made of aluminum materials, so that the overall mass is greatly reduced.
3. The special grading ring for test capable of being adjusted along with the grading radius according to claim 2, wherein the grading ring is characterized in that: the inner and outer structures of the supporting aluminum strips (6) and the supporting aluminum plates (12) are smooth and round, and unnecessary corona interference caused by abrupt shapes on the surfaces is prevented.
4. The special grading ring for test capable of being adjusted along with the grading radius according to claim 1, wherein the grading ring is characterized in that: when the special equalizing ring (1) for the test is lifted in the air, the distance between the hook part of the hook (3) and the center of the special equalizing ring (1) for the test is not greater than the radius of the equalizing ring (2) for operation.
5. The special grading ring for test capable of being adjusted along with the grading radius according to claim 1, wherein the grading ring is characterized in that: when the spring (4) is in an initial state, the distance between the hook part of the hook (3) and the center of the special equalizing ring (1) for the test is smaller than the radius of the equalizing ring (2) for operation.
6. The special grading ring for test capable of being adjusted along with the grading radius according to claim 5, wherein the grading ring is characterized in that: the diameter of the pull ring (11) is larger than that of the perforation in the center of the supporting plate.
7. The special grading ring for test capable of being adjusted along with the grading radius according to claim 6, wherein the grading ring is characterized in that: the length of the traction steel wire rope (9) is the same as the perforation distance between the hook sliding block (8) and the center of the supporting plate when the spring (4) is in the initial state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810171693.9A CN108318711B (en) | 2018-03-01 | 2018-03-01 | Special equalizing ring capable of being adjusted along with equalizing radius for test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810171693.9A CN108318711B (en) | 2018-03-01 | 2018-03-01 | Special equalizing ring capable of being adjusted along with equalizing radius for test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108318711A CN108318711A (en) | 2018-07-24 |
| CN108318711B true CN108318711B (en) | 2024-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810171693.9A Active CN108318711B (en) | 2018-03-01 | 2018-03-01 | Special equalizing ring capable of being adjusted along with equalizing radius for test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108318711B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0554807A (en) * | 1991-08-26 | 1993-03-05 | Hitachi Ltd | Magnetron |
| CN201876469U (en) * | 2010-08-26 | 2011-06-22 | 中国电力科学研究院 | Extra-high voltage and extra-large diameter voltage-sharing cover |
| CN203275445U (en) * | 2013-04-22 | 2013-11-06 | 国家电网公司 | Equalizing ring with multifunctional heterotype spring structure for transformer performance test |
| CN106340359A (en) * | 2016-11-14 | 2017-01-18 | 扬州市美华电气有限公司 | Grading ring |
| CN205973428U (en) * | 2016-08-16 | 2017-02-22 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Testing transformer's supplementary hoist device |
| CN106531372A (en) * | 2016-11-11 | 2017-03-22 | 扬州市美华电气有限公司 | Pressure equalizing ring capable of adjusting distance |
| CN207946449U (en) * | 2018-03-01 | 2018-10-09 | 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 |
-
2018
- 2018-03-01 CN CN201810171693.9A patent/CN108318711B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0554807A (en) * | 1991-08-26 | 1993-03-05 | Hitachi Ltd | Magnetron |
| CN201876469U (en) * | 2010-08-26 | 2011-06-22 | 中国电力科学研究院 | Extra-high voltage and extra-large diameter voltage-sharing cover |
| CN203275445U (en) * | 2013-04-22 | 2013-11-06 | 国家电网公司 | Equalizing ring with multifunctional heterotype spring structure for transformer performance test |
| CN205973428U (en) * | 2016-08-16 | 2017-02-22 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Testing transformer's supplementary hoist device |
| CN106531372A (en) * | 2016-11-11 | 2017-03-22 | 扬州市美华电气有限公司 | Pressure equalizing ring capable of adjusting distance |
| CN106340359A (en) * | 2016-11-14 | 2017-01-18 | 扬州市美华电气有限公司 | Grading ring |
| CN207946449U (en) * | 2018-03-01 | 2018-10-09 | 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 |
Non-Patent Citations (1)
| Title |
|---|
| 高压试验用新型轻捷式均压环的研制;陈波;李波;谢明佐;王琼;;内蒙古电力技术(第06期);全文 * |
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| CN108318711A (en) | 2018-07-24 |
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