CN220271476U - Special tool for AC voltage withstand test of large transformer - Google Patents
Special tool for AC voltage withstand test of large transformer Download PDFInfo
- Publication number
- CN220271476U CN220271476U CN202321640805.3U CN202321640805U CN220271476U CN 220271476 U CN220271476 U CN 220271476U CN 202321640805 U CN202321640805 U CN 202321640805U CN 220271476 U CN220271476 U CN 220271476U
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- rod
- withstand voltage
- insulating rod
- voltage test
- large transformer
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- 238000001514 detection method Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 239000012212 insulator Substances 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model relates to a special tool for a large transformer alternating-current withstand voltage test, which belongs to the field of power detection tools, and in particular relates to a tool for a large transformer alternating-current withstand voltage test, comprising a closed U-shaped hook, a middle end supporting insulating rod, a bottom end triangular bracket, a baffle rod, a spring, a middle shaft arm rod and an adjustable arm rod; the device for the alternating-current withstand voltage test of the large transformer is adjustable in height and convenient to move, is suitable for tests of large transformers of different models, is convenient to move and adapt to different field environments, is convenient to continuously modify the test distance of the transformers in the test, saves manpower and material resources, and improves the test efficiency.
Description
Technical Field
The utility model belongs to the field of power detection tools, and particularly relates to a tool for an alternating-current withstand voltage test of a large transformer.
Background
The transformer substation is used as an important hub for electric energy conversion and transmission transformation in the electric power system, and an alternating current withstand voltage test of electric equipment in the substation is an important work for guaranteeing safe and reliable operation of a power grid. In field work, the 66kV transformer is found to be one of important electrical equipment of a transformer substation, and the time consumption of an alternating current withstand voltage test can greatly influence the working progress of power grid construction and equipment replacement.
According to statistics, the alternating current withstand voltage test time of the large transformer with 66kV and above is about 50 minutes, the distance between the high-voltage test lead and the transformer shell needs to be adjusted for multiple times in the test process, and the high-voltage test lead needs to be supported by an insulating rod when necessary, so that the distance between the high-voltage test lead and the transformer shell meets the insulating requirement, and the process is longest when used in the alternating current withstand voltage test of the transformer.
Therefore, it is needed to develop a special tool, which can safely and quickly make the distance between the high-voltage test lead and the transformer shell meet the insulation requirement, shorten the ac withstand voltage test time of the large transformer, and further improve the efficiency of the ac withstand voltage test of the large transformer.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: a support for a large transformer in an AC withstand voltage test is provided.
A large transformer alternating current withstand voltage test specialized tool, characterized by: comprises a closed U-shaped hook, a middle end supporting insulating rod and a bottom end triangular bracket;
the closed U-shaped hook, the middle end supporting insulating rod and the bottom end triangular bracket are sequentially connected; a baffle rod is hinged at the opening of the U-shaped hook, and a spring is arranged between the baffle rod and the U-shaped hook;
the middle end supporting insulating rod is a telescopic rod;
the bottom end triangular support comprises a middle shaft arm rod and three adjustable arm rods; the middle shaft arm rod is coaxial with the middle end supporting insulating rod, and a hook is arranged at the end part of the middle shaft arm rod; the adjustable arm rod is a supporting rod.
And a horizontal bubble is arranged on the bottom end triangular bracket.
The middle end supporting insulating rod is an insulating rod, the middle end supporting insulating rod is a three-section telescopic rod, and the telescopic rods are fixed through a lifting shaft.
The angle between the adjustable arm rod and the ground is 45 degrees in the unfolding state.
The connection modes among the closed U-shaped hook, the middle end supporting insulating rod and the bottom end triangular bracket are all detachable connection.
Through the design scheme, the utility model has the following beneficial effects: the device for the alternating-current withstand voltage test of the large transformer is adjustable in height and convenient to move, is suitable for tests of large transformers of different models, is convenient to move and adapt to different field environments, is convenient to continuously modify the test distance of the transformers in the test, saves manpower and material resources, and improves the test efficiency.
Drawings
The utility model is further described with reference to the drawings and detailed description which follow:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an enlarged view of a portion of area A of FIG. 1;
wherein: the device comprises a 1-closed U-shaped hook, a 2-middle end supporting insulating rod, a 3-bottom end triangular bracket, a 101-baffle rod, a 102-spring, a 301-middle shaft arm rod and a 302-adjustable arm rod.
Detailed Description
The application is further described with reference to the accompanying drawings:
a large transformer alternating current withstand voltage test specialized tool, characterized by: comprises a closed U-shaped hook 1, a middle end supporting insulating rod 2 and a bottom end triangular bracket 3;
the closed U-shaped hook 1, the middle end supporting insulating rod 2 and the bottom end triangular bracket 3 are sequentially connected; a baffle rod 101 is hinged at the opening of the U-shaped hook 1, and a spring 102 is arranged between the baffle rod 101 and the closed U-shaped hook 1; one end of the baffle rod 101 is hinged with one side of the opening of the closed U-shaped hook 1, a spring 102 is further arranged on the baffle rod 101, the spring 102 connects the baffle rod 101 with the closed U-shaped hook 1, the baffle rod 101 can close the opening of the closed U-shaped hook 1, and an operator can only open the opening of the closed U-shaped hook 1 when pulling the baffle rod 101 with force;
the middle-end supporting insulating rod 2 is a telescopic rod, and the middle-end supporting insulating rod 2 is an insulating rod body;
the bottom end tripod 3 comprises a middle shaft arm rod 301 and three adjustable arm rods 302; the middle shaft arm rod 301 is coaxial with the middle end supporting insulating rod 2, and a hook is arranged at the end part of the middle shaft arm rod 301; the adjustable arm rod 302 is a supporting rod and is used for supporting the bottom end triangular support 3 and the middle end supporting insulating rod 2 of the upper layer.
The bottom end triangular bracket 3 is provided with a horizontal bubble.
The middle-end supporting insulating rod 2 is an insulating rod, the middle-end supporting insulating rod 2 is a three-section telescopic rod, and the telescopic rods are fixed through a lifting shaft.
The adjustable arm 302 is angled 45 degrees from the ground in the extended position.
The connection modes among the closed U-shaped hook 1, the middle end supporting insulating rod 2 and the bottom end triangular bracket 3 are all detachable connection.
The middle end supporting insulating rod 2 is made of insulating materials and is of a telescopic structure, the whole insulating rod is composed of three sections, the original length of the insulating rod is 100cm, the longest insulating rod can be stretched to 300cm, the end part of each section of insulating rod is fixedly locked by a lifting shaft, and the insulating rod can be locked after lifting is completed, so that the insulating rod can be prevented from sliding downwards.
The bottom end tripod 3 consists of a middle shaft arm rod 301 and three adjustable arm rods 302, the storage height is 85cm, the unfolding height is 60cm, the support angle of the tripod after the tripod is opened is 45 degrees, the top is provided with a horizontal bubble to adjust the horizontal degree and the stability of the tripod, the bottom of the middle shaft arm rod 301 is provided with a gravity hook, and a weight can be added when necessary, so that the overall stability is improved.
During the test, with the closed U type couple 1 screwed connection in middle-end support insulator spindle 2's one end and top, again with middle-end support insulator spindle 2 other end and bottom tripod 3 screwed connection, open bottom tripod 3 after the equipment is accomplished, adjustable armed lever 302 opens angle 45, there is the balance of level bubble in order to mediate bottom tripod 3 with bottom tripod 3 top, take closed U type couple 1 with high-pressure test lead wire, baffle rod 101 fastens the opening of closed U type couple 1 under spring 102 effect, prevent that the lead wire from falling out and causing the problem, and prop up test lead wire, adjust the flexible length of middle part support insulator spindle 2 according to the height that high-pressure test lead wire needs, the fixed middle part support insulator spindle 2 that the fixed lock of lift axle is adjusted.
Claims (5)
1. A large transformer alternating current withstand voltage test specialized tool, characterized by: comprises a closed U-shaped hook (1), a middle end supporting insulating rod (2) and a bottom end triangular bracket (3);
the closed U-shaped hook (1), the middle end supporting insulating rod (2) and the bottom end triangular bracket (3) are sequentially connected; a baffle rod (101) is hinged at the opening of the U-shaped hook (1), and a spring (102) is arranged between the baffle rod (101) and the U-shaped hook (1);
the middle end supporting insulating rod (2) is a telescopic rod;
the bottom end triangular support (3) comprises a middle shaft arm rod (301) and three adjustable arm rods (302); the middle shaft arm rod (301) is coaxial with the middle end supporting insulating rod (2), and a hook is arranged at the end part of the middle shaft arm rod (301); the adjustable arm (302) is a support bar.
2. The special tool for the alternating-current withstand voltage test of the large transformer according to claim 1, which is characterized in that: the bottom end triangular support (3) is provided with a horizontal bubble.
3. The special tool for the alternating-current withstand voltage test of the large transformer according to claim 1, which is characterized in that: the middle-end supporting insulating rod (2) is an insulating rod, the middle-end supporting insulating rod (2) is a three-section telescopic rod, and the telescopic rods are fixed through a lifting shaft.
4. The special tool for the alternating-current withstand voltage test of the large transformer according to claim 1, which is characterized in that: the adjustable arm (302) is angled 45 degrees from the ground in the deployed state.
5. The special tool for the alternating-current withstand voltage test of the large transformer according to claim 1, which is characterized in that: the connection modes among the closed U-shaped hook (1), the middle end supporting insulating rod (2) and the bottom end triangular bracket (3) are all detachable connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321640805.3U CN220271476U (en) | 2023-06-27 | 2023-06-27 | Special tool for AC voltage withstand test of large transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321640805.3U CN220271476U (en) | 2023-06-27 | 2023-06-27 | Special tool for AC voltage withstand test of large transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220271476U true CN220271476U (en) | 2023-12-29 |
Family
ID=89301916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321640805.3U Active CN220271476U (en) | 2023-06-27 | 2023-06-27 | Special tool for AC voltage withstand test of large transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220271476U (en) |
-
2023
- 2023-06-27 CN CN202321640805.3U patent/CN220271476U/en active Active
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