CN108318789B - Special grading ring for transformer bushing test - Google Patents
Special grading ring for transformer bushing test Download PDFInfo
- Publication number
- CN108318789B CN108318789B CN201810171432.7A CN201810171432A CN108318789B CN 108318789 B CN108318789 B CN 108318789B CN 201810171432 A CN201810171432 A CN 201810171432A CN 108318789 B CN108318789 B CN 108318789B
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- China
- Prior art keywords
- ring
- clamping plate
- semi
- aluminum clamping
- special
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Links
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 76
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 76
- 238000005498 polishing Methods 0.000 claims abstract description 16
- 210000000078 claw Anatomy 0.000 claims abstract description 7
- 239000004411 aluminium Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
-
- 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
- G01R1/04—Housings; Supporting members; Arrangements of terminals
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Insulators (AREA)
Abstract
The invention discloses a special grading ring for a transformer bushing test, which comprises a bushing test grading ring body and an asymmetric structure nested fixing clamping device arranged on the bushing test grading ring body, wherein the asymmetric structure nested fixing clamping device comprises a first half-ring aluminum clamping plate, a second half-ring aluminum clamping plate, a plurality of polishing bolts and four supporting bars. The special grading ring for the transformer bushing test adopts a unique embedded design with an asymmetric structure, and only a worker only needs to directly sleeve the grading ring at the end part of the high-voltage bushing, the unique embedded design with an asymmetric structure can meet various conditions of a single-wire clamp wiring terminal in a straight shape, a double-wire clamp wiring terminal in a claw shape, a cylindrical end part of a conducting rod and the like, the fixation is convenient and stable, the removal is very convenient, various inconveniences caused when the grading ring is fixed at the wiring terminal in the past are avoided, and the working efficiency of the high-voltage electric test is greatly improved.
Description
Technical Field
The invention relates to the technical field of high-voltage electric test equipment, in particular to a special equalizing ring for a transformer bushing test.
Background
At present, in the field high-voltage electric test of power plants, transformer stations and the like, particularly in the field test of long-time induction voltage resistance, partial discharge detection and the like of transformers, the equalizing ring is often used, most equalizing ring structural designs used at present are not ideal, workers need to fix the equalizing ring to the end position (4-5 meters away from the ground) of a high-voltage sleeve by screwing or winding a metal rope by bare hands, although the shape of the end of the high-voltage sleeve is more complex, a plurality of types exist, the shape is a single-wire clamp wiring terminal in a straight shape, the shape is sometimes a double-wire clamp wiring terminal in a claw shape, and the shape is sometimes only a cylindrical end part of a conducting rod, so the equalizing ring and the sleeve are difficult to fix, unstable and difficult to detach in the fixing process of the equalizing ring and the sleeve in the field test, the convenient application of the field test is not facilitated, and the overall efficiency of the test is reduced.
Disclosure of Invention
The invention aims to provide the special equalizing ring for the transformer bushing test, which can be used for conveniently fixing and detaching the equalizing rings for the test on the high-voltage bushings with different types of end parts, so that the high-voltage electric test efficiency is improved, and the great influence of the fixed equalizing rings on the high-voltage bushing end parts on the field work by workers is reduced.
The invention adopts the technical scheme that:
the utility model provides a special equalizer ring of transformer sleeve test, includes sleeve test equalizer ring body 1 and sets up the nested fixed clamp of asymmetric structure of equalizer ring body 1 and get the device, the nested fixed clamp of asymmetric structure get the device including first semi-ring aluminium splint 2, second semi-ring aluminium splint 3, a plurality of bolt 4 and four support bars 5 of polishing, first semi-ring aluminium splint 2 and second semi-ring aluminium splint 3 be rectangular plate, two rectangular plates are fixed with the inner wall of sleeve test equalizer ring body 1 through two support bars 5 respectively; the middle parts of the two rectangular plates are respectively provided with a half-arc concave part correspondingly, and the first half-ring aluminum clamping plate 2 and the second half-ring aluminum clamping plate 3 are fixedly arranged through a plurality of polishing bolt gaps; the semi-arc concave parts of the first semi-ring aluminum clamping plate 2 and the semi-arc concave parts of the second semi-ring aluminum clamping plate 3 are different in size, the semi-arc concave parts of the first semi-ring aluminum clamping plate 2 and the second semi-ring aluminum clamping plate 3 are oppositely arranged, and the semi-arc concave parts of the first semi-ring aluminum clamping plate 2 and the second semi-ring aluminum clamping plate 3 are strictly round after being matched.
The distance between the first half-ring aluminum clamping plate 2 and the second half-ring aluminum clamping plate 3 is the same as the thickness of the straight-line single-wire clamp wiring terminal.
The thickness of the first half-ring aluminum clamping plate 2 is the same as the distance between two wire clamps of the 'claw-shaped' double-wire clamp wiring terminal.
The radius of a strict perfect circle is the same as that of the upper end part of the cylindrical conducting rod after the semi-arc concave parts of the first semi-ring aluminum clamping plate 2 and the second semi-ring aluminum clamping plate 3 are matched.
The periphery of the polishing bolt 4 is smooth and round and is used for preventing unnecessary corona interference caused by abrupt surface shape.
The joint of the support bar 5 and the first half-ring aluminum clamping plate 2 and the second half-ring aluminum clamping plate 3 is smooth and round, and unnecessary corona interference caused by abrupt surface shape is prevented.
The special grading ring 1 for the test is an integral aluminum product, and the plurality of polishing bolts 4 and the four supporting bars 5 are respectively aluminum polishing bolts and aluminum supporting bars, so that the integral quality is reduced to a greater extent.
The special grading ring for the transformer bushing test adopts a unique embedded design with an asymmetric structure, and only a worker only needs to directly sleeve the grading ring at the end part of the high-voltage bushing, the unique embedded design with an asymmetric structure can meet various conditions of a single-wire clamp wiring terminal in a straight shape, a double-wire clamp wiring terminal in a claw shape, a cylindrical end part of a conducting rod and the like, the fixation is convenient and stable, the removal is very convenient, various inconveniences caused when the grading ring is fixed at the wiring terminal in the past are avoided, and the working efficiency of the high-voltage electric test is greatly improved.
Drawings
FIG. 1 is a front view of the present invention;
fig. 2 is a perspective view of the present invention.
Detailed Description
As shown in fig. 1 and 2, the invention comprises a sleeve test equalizing ring body 1 and an asymmetric structure nested fixing clamping device arranged on the sleeve test equalizing ring body 1, wherein the asymmetric structure nested fixing clamping device comprises a first semi-ring aluminum clamping plate 2, a second semi-ring aluminum clamping plate 3, a plurality of polishing bolts 4 and four supporting bars 5, the first semi-ring aluminum clamping plate 2 and the second semi-ring aluminum clamping plate 3 are rectangular plates, and the two rectangular plates are respectively fixed with the inner wall of the sleeve test equalizing ring body 1 through the two supporting bars 5; the middle parts of the two rectangular plates are respectively provided with a half-arc concave part correspondingly, and the first half-ring aluminum clamping plate 2 and the second half-ring aluminum clamping plate 3 are fixedly arranged through a plurality of polishing bolt gaps; the semi-arc concave parts of the first semi-ring aluminum clamping plate 2 and the semi-arc concave parts of the second semi-ring aluminum clamping plate 3 are different in size, the semi-arc concave parts of the first semi-ring aluminum clamping plate 2 and the second semi-ring aluminum clamping plate 3 are oppositely arranged, and the semi-arc concave parts of the first semi-ring aluminum clamping plate 2 and the second semi-ring aluminum clamping plate 3 are strictly round after being matched.
The distance between the first half-ring aluminum clamping plate 2 and the second half-ring aluminum clamping plate 3 is the same as the thickness of the straight-line single-wire clamp wiring terminal. The thickness of the first half-ring aluminum clamping plate 2 is the same as the distance between two wire clamps of the 'claw-shaped' double-wire clamp wiring terminal. The radius of a strict perfect circle is the same as that of the upper end part of the cylindrical conducting rod after the semi-arc concave parts of the first semi-ring aluminum clamping plate 2 and the second semi-ring aluminum clamping plate 3 are matched. The first half-ring aluminum clamping plate 2 and the second half-ring aluminum clamping plate 3 in the asymmetric structure nested design are matched to strictly form a perfect circle meeting the calibration size. The first half-ring aluminum clamping plate 2 is designed to be placed in a gap between two wire clamps of the 'claw' -shaped double-wire clamp wiring terminal without being affected when encountering the condition of the 'claw' -shaped double-wire clamp wiring terminal.
The periphery of the polishing bolt 4 is smooth and round and is used for preventing unnecessary corona interference caused by abrupt surface shape. The joint of the support bar 5 and the first half-ring aluminum clamping plate 2 and the second half-ring aluminum clamping plate 3 is smooth and round, and unnecessary corona interference caused by abrupt surface shape is prevented. The polishing bolts 4 and the four supporting bars 5 are respectively aluminum polishing bolts and aluminum supporting bars, so that the overall mass is reduced to a large extent.
The first half-ring aluminum clamping plate 2 and the second half-ring aluminum clamping plate 3 are matched with each other and a gap is reserved. The gap is in a shape with a round middle and a long and narrow rectangle integrally, so that the two-wire clamp type conductor can meet the conditions of a single-wire clamp type conductor terminal, a double-wire clamp type conductor terminal, a cylindrical end part of a conducting rod and the like. The thickness of the metal plate of the high-voltage bushing end terminal and the size of the cylindrical end of the conducting rod are calibrated in general, so that the clearance distance is just enough to meet the nominal thickness of the metal plate of the high-voltage bushing end terminal and the size of the cylindrical end of the conducting rod. The distance of the gap can also be adjusted by grinding the bolts 4 if necessary. The aluminum equalizing ring 6 is connected with the first half-ring aluminum clamping plate 2 and the second half-ring aluminum clamping plate 3 through aluminum supporting bars 5 to form the equalizing ring 1 special for the transformer sleeve test. When in use, only a worker is required to directly sleeve the equalizing ring at the end part of the high-voltage sleeve.
The special grading ring for the transformer bushing test adopts a unique embedded design with an asymmetric structure, and only a worker only needs to directly sleeve the grading ring at the end part of the high-voltage bushing, the unique embedded design with an asymmetric structure can meet various conditions of a single-wire clamp wiring terminal in a straight shape, a double-wire clamp wiring terminal in a claw shape, a cylindrical end part of a conducting rod and the like, the fixation is convenient and stable, the removal is very convenient, various inconveniences caused when the grading ring is fixed at the wiring terminal in the past are avoided, and the working efficiency of the high-voltage electric test is greatly improved.
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 transformer bushing test which characterized in that: the device comprises a sleeve test equalizing ring body and an asymmetric structure nested fixing clamping device arranged on the sleeve test equalizing ring body (1), wherein the asymmetric structure nested fixing clamping device comprises a first semi-ring aluminum clamping plate (2), a second semi-ring aluminum clamping plate (3), a plurality of polishing bolts (4) and four supporting bars (5), the first semi-ring aluminum clamping plate (2) and the second semi-ring aluminum clamping plate (3) are rectangular plates, and the two rectangular plates are fixed with the inner wall of the sleeve test equalizing ring body (1) through the two supporting bars (5) respectively; the middle parts of the two rectangular plates are respectively provided with a half-arc concave part correspondingly, and the first half-ring aluminum clamping plate (2) and the second half-ring aluminum clamping plate (3) are fixedly arranged through a plurality of polishing bolt gaps; the semi-arc concave parts of the first semi-ring aluminum clamping plate (2) and the semi-arc concave parts of the second semi-ring aluminum clamping plate (3) are different in size, the semi-arc concave parts of the first semi-ring aluminum clamping plate (2) and the second semi-ring aluminum clamping plate (3) are oppositely arranged, and the semi-arc concave parts of the first semi-ring aluminum clamping plate (2) and the second semi-ring aluminum clamping plate (3) are strictly circular after being matched.
2. The grading ring special for transformer bushing test according to claim 1, wherein: the distance between the gaps of the first semi-ring aluminum clamping plate (2) and the second semi-ring aluminum clamping plate (3) is the same as the thickness of the straight single-wire clamp wiring terminal.
3. The grading ring special for transformer bushing test according to claim 1, wherein: the thickness of the first semi-ring aluminum clamping plate (2) is the same as the distance between two wire clamps of the ' claw ' -shaped ' double-wire clamp wiring terminal.
4. The grading ring special for transformer bushing test according to claim 1, wherein: the radius of a strict perfect circle is the same as that of the upper end part of the cylindrical conducting rod after the semi-arc concave parts of the first semi-ring aluminum clamping plate (2) and the second semi-ring aluminum clamping plate (3) are matched.
5. The grading ring special for transformer bushing test according to claim 1, wherein: the periphery of the polishing bolt (4) is smooth and round and is used for preventing unnecessary corona interference caused by abrupt surface shape.
6. The grading ring special for transformer bushing test according to claim 1, wherein: the joint of the support bar (5) and the first half-ring aluminum clamping plate (2) and the second half-ring aluminum clamping plate (3) is smooth and round, and unnecessary corona interference caused by abrupt surface shape is prevented.
7. The grading ring special for transformer bushing test according to claim 1, wherein: the special equalizing ring for the test is an integral aluminum product, and the plurality of polishing bolts (4) and the four supporting bars (5) are respectively aluminum polishing bolts and aluminum supporting bars, so that the integral quality is greatly reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810171432.7A CN108318789B (en) | 2018-03-01 | 2018-03-01 | Special grading ring for transformer bushing test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810171432.7A CN108318789B (en) | 2018-03-01 | 2018-03-01 | Special grading ring for transformer bushing test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108318789A CN108318789A (en) | 2018-07-24 |
| CN108318789B true CN108318789B (en) | 2024-01-30 |
Family
ID=62900061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810171432.7A Active CN108318789B (en) | 2018-03-01 | 2018-03-01 | Special grading ring for transformer bushing test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108318789B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0888039A (en) * | 1994-09-19 | 1996-04-02 | Tooma Japan:Kk | Terminal board common to various kinds of batteries |
| EP2023441A1 (en) * | 2007-08-08 | 2009-02-11 | Manfred Menini | Bistable device forming an electric switch of a battery terminal |
| CN201690093U (en) * | 2010-06-11 | 2010-12-29 | 河南省电力公司焦作供电公司 | Pluggable wire clip |
| CN202513302U (en) * | 2012-03-29 | 2012-10-31 | 江苏安荣电气设备有限公司 | Copper-aluminum composite junction terminal for use in power transmission connection |
| CN206116638U (en) * | 2016-10-13 | 2017-04-19 | 陆根德 | Reliable electrically conductive fastener of asymmetric of structure |
| CN106848640A (en) * | 2017-04-06 | 2017-06-13 | 山东电力设备有限公司 | A kind of grading ring special wiring terminal |
| CN206292348U (en) * | 2016-12-24 | 2017-06-30 | 大连鑫垚电器制造股份有限公司 | The power frequency partial discharge test frock of epoxy resin wall bushing |
| CN207866966U (en) * | 2018-03-01 | 2018-09-14 | 国网河南省电力公司电力科学研究院 | A kind of special grading ring of bushing shell for transformer experiment |
-
2018
- 2018-03-01 CN CN201810171432.7A patent/CN108318789B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0888039A (en) * | 1994-09-19 | 1996-04-02 | Tooma Japan:Kk | Terminal board common to various kinds of batteries |
| EP2023441A1 (en) * | 2007-08-08 | 2009-02-11 | Manfred Menini | Bistable device forming an electric switch of a battery terminal |
| CN201690093U (en) * | 2010-06-11 | 2010-12-29 | 河南省电力公司焦作供电公司 | Pluggable wire clip |
| CN202513302U (en) * | 2012-03-29 | 2012-10-31 | 江苏安荣电气设备有限公司 | Copper-aluminum composite junction terminal for use in power transmission connection |
| CN206116638U (en) * | 2016-10-13 | 2017-04-19 | 陆根德 | Reliable electrically conductive fastener of asymmetric of structure |
| CN206292348U (en) * | 2016-12-24 | 2017-06-30 | 大连鑫垚电器制造股份有限公司 | The power frequency partial discharge test frock of epoxy resin wall bushing |
| CN106848640A (en) * | 2017-04-06 | 2017-06-13 | 山东电力设备有限公司 | A kind of grading ring special wiring terminal |
| CN207866966U (en) * | 2018-03-01 | 2018-09-14 | 国网河南省电力公司电力科学研究院 | A kind of special grading ring of bushing shell for transformer experiment |
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| Publication number | Publication date |
|---|---|
| CN108318789A (en) | 2018-07-24 |
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