CN216818081U - Single-phase voltage transformer conductor structure convenient to withstand voltage test carries out - Google Patents
Single-phase voltage transformer conductor structure convenient to withstand voltage test carries out Download PDFInfo
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- CN216818081U CN216818081U CN202123079287.6U CN202123079287U CN216818081U CN 216818081 U CN216818081 U CN 216818081U CN 202123079287 U CN202123079287 U CN 202123079287U CN 216818081 U CN216818081 U CN 216818081U
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Abstract
The utility model relates to the technical field of power systems, in particular to a single-phase voltage transformer conductor structure convenient for a withstand voltage test. The utility model provides a single-phase voltage transformer conductor structure convenient to carry out withstand voltage test, includes the casing, its characterized in that: the upper end of the shell is provided with an opening, the opening is provided with a transportation cover plate, the upper part in the shell is provided with a shielding cover, the lower end of the shielding cover is connected with one end of a single-phase voltage transformer conductor, and the other end of the single-phase voltage transformer conductor is connected with a three-way connecting conductor. Compared with the prior art, can install single-phase voltage transformer conductor before equipment leaves the factory, directly transport the single-phase voltage transformer conductor that has installed near GIS, save the work load of on-the-spot installation, reduce the produced cost of erection equipment, be convenient for carry out withstand voltage test and maintenance to GIS, convenient and reliable.
Description
Technical Field
The utility model relates to the technical field of power systems, in particular to a single-phase voltage transformer conductor structure convenient for a withstand voltage test.
Background
The gas insulated metal enclosed switchgear is one of important power transmission and transformation equipment for a power grid, and the safety and reliability of the gas insulated metal enclosed switchgear are important for the safe operation of the power grid. The function of the voltage transformer is to convert the high voltage into standard low voltage (100V or 100/V) in proportion, so as to realize the standardization and miniaturization of measuring instruments, protection equipment and automatic control equipment; and high voltage is isolated, and the safety of workers and equipment is guaranteed. The electromagnetic voltage transformer is one of the main applied voltage transformers in the power grid in China, is important equipment in power transmission, not only provides convenience for operation monitoring of the power grid, but also provides parameters for correct actions of certain relay protection. Therefore, the method has important significance for strengthening the monitoring test in the operation of the electromagnetic voltage transformer and guaranteeing the safety of a power grid.
At present, a single-phase voltage transformer is directly connected with a GIS, an isolating switch/a grounding switch is not arranged, and a single-phase voltage transformer conductor is not installed firstly when a GIS voltage withstand test is carried out. After the GIS finishes the test, the GIS is assembled with the single-phase voltage transformer conductor and the single-phase voltage transformer. And when the single-phase voltage transformer conductor is installed on site, special tooling is needed for positioning, time and labor are wasted, and the workload of on-site installation is increased.
Therefore, the single-phase voltage transformer conductor structure convenient for the voltage withstand test is designed, the single-phase voltage transformer conductor can be installed well before equipment leaves a factory, the installed single-phase voltage transformer conductor is directly transported to a position near a GIS, the workload of field installation is saved, the cost for installing the equipment is reduced, the voltage withstand test and the maintenance of the GIS are convenient, and the structure is convenient and reliable.
Disclosure of Invention
The utility model provides a single-phase voltage transformer conductor structure convenient for voltage withstand test, which can be used for installing a single-phase voltage transformer conductor before equipment leaves a factory, directly transporting the installed single-phase voltage transformer conductor to the vicinity of a GIS, saving the workload of field installation, reducing the cost generated by the installation of equipment, facilitating the voltage withstand test and maintenance of the GIS, and being convenient and reliable.
In order to realize the above-mentioned purpose, design a single-phase voltage transformer conductor structure convenient to carry out withstand voltage test, including the casing, its characterized in that: the upper end of the shell is provided with an opening, the opening is provided with a transportation cover plate, the upper part in the shell is provided with a shielding cover, the lower end of the shielding cover is connected with one end of a single-phase voltage transformer conductor, and the other end of the single-phase voltage transformer conductor is connected with a three-way connecting conductor.
The middle part of the transportation cover plate is upwards convex.
The outer edge of the transportation cover plate is connected with the shell through bolts.
And the middle part of the lower end of the shielding cover is provided with a connecting hole connected with a single-phase voltage transformer conductor.
And an annular groove is formed outside the connecting hole.
The upper end of the shielding cover is provided with a groove.
The structure of the single-phase voltage transformer conductor is ㄣ type structure.
The single-phase voltage transformer conductor comprises a first conductor, a third conductor and a second conductor, wherein the first conductor and the third conductor are arranged in the vertical direction, the second conductor and the second conductor are arranged in the horizontal direction, the first conductor and the second conductor are positioned at the lower end of the shielding cover and are connected with the upper end of the first conductor, the lower end of the first conductor is connected with one end of the second conductor, the other end of the second conductor is connected with the upper end of the third conductor, and the lower end of the third conductor is connected with the three-way connection conductor.
The center of the upper end of the first conductor is provided with a first threaded hole, and the center of the lower end of the third conductor is provided with a second threaded hole.
The outer edge of one side of the shell is provided with a protruding structure, and the center of the protruding structure is provided with a through hole.
Compared with the prior art, the single-phase voltage transformer conductor can be installed before equipment leaves a factory, and the installed single-phase voltage transformer conductor is directly transported to the position near the GIS, so that the workload of field installation is saved, the cost generated by equipment installation is reduced, the voltage withstand test and maintenance of the GIS are facilitated, and the equipment is convenient and reliable.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the conductor of the single-phase voltage transformer.
Fig. 3 is a schematic structural diagram of the shield case of the present invention.
FIG. 4 is a schematic view of the structure of the present invention after the test is completed.
Referring to fig. 1 to 4, wherein 1 is a housing, 2 is a single-phase voltage transformer, 3 is a single-phase voltage transformer conductor, 4 is a shield, 5 is a three-way connection conductor, 6 is a first threaded hole, 7 is a connection hole, 8 is a cover plate, 9 is an opening, 10 is a second threaded hole, 11 is a basin-type insulator, 12 is an annular groove, 13 is a convex structure, 14 is a through hole, and 15 is a groove.
Detailed Description
The utility model will be further elucidated on the basis of the drawing.
As shown in fig. 1 to 3, an opening 9 is provided at the upper end of the casing 1, a transportation cover plate 8 is provided at the opening 9, a shielding cover 4 is provided at the upper part of the casing 1, the lower end of the shielding cover 4 is connected with one end of the single-phase voltage transformer conductor 3, and the other end of the single-phase voltage transformer conductor 3 is connected with the three-way connection conductor 5.
The middle part of the transportation cover plate 8 protrudes upwards, and the insulation margin is increased.
The outer edge of the transportation cover plate 8 is connected with the shell 1 through bolts.
And a connecting hole 7 connected with the single-phase voltage transformer conductor 3 is formed in the middle of the lower end of the shielding case 4.
An annular groove 12 is arranged outside the connecting hole 7. When the contact finger spring is used, the contact finger spring is installed in the annular groove.
The upper end of the shielding cover 4 is provided with a groove 15 which plays a role of shielding an electric field.
The structure of the single-phase voltage transformer conductor 3 is ㄣ type structure.
The single-phase voltage transformer conductor 3 comprises a first conductor 3-1, a third conductor 3-3 and a second conductor 3-2, wherein the first conductor 3-1 and the third conductor 3-3 are arranged in the vertical direction, the first conductor 3-1 is located at the lower end of the shielding cover 4 and is connected with the upper end of the first conductor 3-1, the lower end of the first conductor 3-1 is connected with one end of the second conductor 3-2, the other end of the second conductor 3-2 is connected with the upper end of the third conductor 3-3, and the lower end of the third conductor 3-3 is connected with the three-way connection conductor 5. When the connector is used specifically, the first conductor 3-1, the second conductor 3-2 and the third conductor 3-3 are connected in a welding mode.
The center of the upper end of the first conductor 3-1 is provided with a first threaded hole 6 connected with the shielding case 4, and the lower end of the third conductor 3-3 is provided with a second threaded hole 10 connected with the three-way connecting conductor 5.
The outer edge of one side of the shell 1 is provided with a convex structure 13, and the center of the convex structure 13 is provided with a through hole 14. When the portable electronic device is used specifically, the shell 1 can be fixed through the through hole 14, and transportation is facilitated.
During specific use, before equipment leaves a factory, the single-phase voltage transformer conductor 3, the three-way connecting conductor 5 and the shielding case 4 are assembled in the shell 1, and the transportation cover plate 8 is assembled at the opening 9 of the shell 1 to complete the assembly of the single-phase voltage transformer conductor. And then, transporting the assembled single-phase voltage transformer conductor to the position near the GIS, detaching the transportation cover plate 8 after the GIS voltage withstand test is finished, installing the basin-type insulator 11 and the single-phase voltage transformer 2 at the upper end of the shell 1, and then assembling the single-phase voltage transformer 2, the shell 1 and the GIS to enter a working state as shown in figure 4.
The shipping cover 8 protects the various components within the housing 1 from damage during shipping.
According to the utility model, the single-phase voltage transformer conductor is installed before the equipment leaves the factory, and then the equipment is transported to the GIS for a withstand voltage test, so that the workload of field installation is saved, the cost generated by equipment installation is reduced, the withstand voltage test and the maintenance of the GIS are convenient, and the equipment is convenient and reliable.
Claims (10)
1. The utility model provides a single-phase voltage transformer conductor structure convenient to carry out withstand voltage test, includes the casing, its characterized in that: the upper end of the shell (1) is provided with an opening (9), a transportation cover plate (8) is arranged at the position of the opening (9), a shielding cover (4) is arranged on the inner upper portion of the shell (1), the lower end of the shielding cover (4) is connected with one end of a single-phase voltage transformer conductor (3), and the other end of the single-phase voltage transformer conductor (3) is connected with a three-way connecting conductor (5).
2. The single-phase voltage transformer conductor structure facilitating withstand voltage test according to claim 1, characterized in that: the middle part of the transportation cover plate (8) is raised upwards.
3. The single-phase voltage transformer conductor structure facilitating withstand voltage test according to claim 1 or 2, wherein: the outer edge of the transportation cover plate (8) is connected with the shell (1) through bolts.
4. The single-phase voltage transformer conductor structure facilitating withstand voltage test according to claim 1, wherein: and a connecting hole (7) connected with the single-phase voltage transformer conductor (3) is formed in the middle of the lower end of the shielding case (4).
5. The single-phase voltage transformer conductor structure facilitating withstand voltage test according to claim 4, wherein: and an annular groove (12) is arranged on the outer side of the connecting hole (7).
6. The single-phase voltage transformer conductor structure facilitating withstand voltage test according to claim 1 or 4, wherein: the upper end of the shielding cover (4) is provided with a groove (15).
7. The single-phase voltage transformer conductor structure facilitating withstand voltage test according to claim 1, wherein: the structure of the single-phase voltage transformer conductor (3) is an ㄣ type structure.
8. The single-phase voltage transformer conductor structure facilitating withstand voltage test according to claim 1, wherein: the single-phase voltage transformer conductor (3) comprises a first conductor (3-1), a third conductor (3-3) and a second conductor (3-2), wherein the first conductor (3-1) and the third conductor (3-3) are arranged in the vertical direction, the lower end of the shielding cover (4) is connected with the upper end of the first conductor (3-1), the lower end of the first conductor (3-1) is connected with one end of the second conductor (3-2), the other end of the second conductor (3-2) is connected with the upper end of the third conductor (3-3), and the lower end of the third conductor (3-3) is connected with the three-way connection conductor (5).
9. The single-phase voltage transformer conductor structure facilitating withstand voltage test according to claim 8, wherein: the center of the upper end of the first conductor (3-1) is provided with a first threaded hole (6), and the lower end of the third conductor (3-3) is provided with a second threaded hole (10).
10. The single-phase voltage transformer conductor structure facilitating withstand voltage test according to claim 1, wherein: the shell is characterized in that a protruding structure (13) is arranged on the outer edge of one side of the shell (1), and a through hole (14) is formed in the center of the protruding structure (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123079287.6U CN216818081U (en) | 2021-12-09 | 2021-12-09 | Single-phase voltage transformer conductor structure convenient to withstand voltage test carries out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123079287.6U CN216818081U (en) | 2021-12-09 | 2021-12-09 | Single-phase voltage transformer conductor structure convenient to withstand voltage test carries out |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216818081U true CN216818081U (en) | 2022-06-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123079287.6U Active CN216818081U (en) | 2021-12-09 | 2021-12-09 | Single-phase voltage transformer conductor structure convenient to withstand voltage test carries out |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216818081U (en) |
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2021
- 2021-12-09 CN CN202123079287.6U patent/CN216818081U/en active Active
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