CN210110441U - Shielding electrode of basin-type insulator - Google Patents
Shielding electrode of basin-type insulator Download PDFInfo
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- CN210110441U CN210110441U CN201920702433.XU CN201920702433U CN210110441U CN 210110441 U CN210110441 U CN 210110441U CN 201920702433 U CN201920702433 U CN 201920702433U CN 210110441 U CN210110441 U CN 210110441U
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- basin
- shielding electrode
- type insulator
- insulator
- central conductor
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Abstract
A shielding electrode of a basin-type insulator belongs to a safe operation facility of an electric power system and comprises an aluminum alloy shell and the basin-type insulator, wherein the basin-type insulator is arranged in the aluminum alloy shell, and the basin-type insulator is characterized in that an upper shielding electrode is arranged at the joint of a convex surface of the basin-type insulator and a central conductor, a lower shielding electrode is arranged at the joint of a concave surface of the basin-type insulator and the central conductor, and SF is filled around the upper shielding electrode, the lower shielding electrode and the basin-type insulator6The gas is surrounded by the aluminum alloy shell. The utility model discloses improve basin type insulator's electric field distribution, especially reduced central conductor, epoxy insulationSeed and SF6Local electric field intensity at the junction of the gas and the three avoids flashover of the basin-type insulator caused by electric field distortion and local electric field concentration, and improves the running safety of equipment.
Description
Technical Field
The utility model belongs to electric power system safe operation facility, concretely relates to shielded electrode of benzvalene form insulator.
Background
Compared with a traditional open-type substation, a Gas Insulated Substation (GIS) has the advantages of high reliability, low loss, small occupied area, low noise and the like, and is widely applied all over the world. The gas insulated substation is a high-voltage electrical appliance which is composed of a breaker, a bus, an isolating switch, a grounding switch, a voltage transformer, a current transformer, a lightning arrester, a high-voltage bushing and the like. The basin insulator is a key component of a gas insulated substation and plays roles in supporting a conductor, isolating a gas chamber and electrically insulating. Insulator surface electric field distortion and local electric field concentration are the main causes of flashover of the basin-type insulator. Flashovers typically occur in the center conductor, epoxy insulator and SF6The junction of the three gases. Therefore, the reasonable design of the structure of the basin-type insulator has important significance.
Disclosure of Invention
In order to solve the problem that basin insulator surface electric field distortion and local electric field concentrate and lead to basin insulator flashover, the utility model provides an install the shielding electrode near basin insulator and center conductor, the electric field distribution of basin insulator can be improved in the existence of this shielding electrode, avoids the too high condition of local electric field intensity to take place.
The utility model provides a technical scheme that its technical problem adopted:
a shielding electrode of a basin-type insulator comprises an aluminum alloy shell and the basin-type insulator, wherein the basin-type insulator is arranged in the aluminum alloy shell, and the basin-type insulator is characterized in that an upper shielding electrode is arranged at the joint of a convex surface of the basin-type insulator and a central conductor, a lower shielding electrode is arranged at the joint of a concave surface of the basin-type insulator and the central conductor, the central conductor penetrates through the lower shielding electrode, the basin-type insulator and the upper shielding electrode, the lower shielding electrode, the basin-type insulator, the upper shielding electrode and the central conductor are connected into a whole, and the upper shielding electrode, the lower shielding electrode,The periphery of the basin-type insulator is filled with SF6The gas is surrounded by the aluminum alloy shell.
The height of the upper shielding electrode is 80mm, the diameter is 20mm, and the chamfer radius of the edges at two ends is 10 mm.
The height of the lower shielding electrode is 80mm, the diameter is 20mm, and the chamfer radius of the edges at two ends is 10 mm.
The utility model discloses shielding electrode installs in center conductor and benzvalene form insulator junction. The upper shielding electrode is used for improving the electric field distribution on the upper surface of the basin-type insulator; the lower shielding electrode is used for improving the electric field distribution of the lower surface of the basin-type insulator; the arc-shaped chamfer of the shielding electrode weakens the local electric field concentration, effectively improves the electric field distribution and improves the running safety of equipment.
The utility model discloses improve the electric field distribution of basin formula insulator, especially reduced center conductor, epoxy insulator and SF6Local electric field intensity at the junction of the gas and the three avoids flashover of the basin-type insulator caused by electric field distortion and local electric field concentration, and improves the running safety of equipment.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1, an upper shielding electrode, 2, a lower shielding electrode, 3, a central conductor, 4, a basin-type insulator, 5 and a shell.
Detailed Description
FIG. 1 shows a shielding electrode of a basin-type insulator, which comprises an aluminum alloy shell 5 and a basin-type insulator 4, wherein the basin-type insulator 4 is arranged in the aluminum alloy shell 5, and is characterized in that an upper shielding electrode 1 is arranged at the joint of a convex surface of the basin-type insulator and a central conductor 3, a lower shielding electrode 2 is arranged at the joint of the concave surface of the basin-type insulator and the central conductor 3, the central conductor 3 penetrates through the lower shielding electrode 2, the basin-type insulator 4 and the upper shielding electrode 1 and the lower shielding electrode 2, the basin-type insulator 4 and the upper shielding electrode 1 are connected with the central conductor 3 into a whole, and the peripheries of the upper shielding electrode 1, the lower shielding electrode 2 and the basin-type insulator 46The gas is surrounded by an aluminum alloy outer shell 5.
The height of the upper shielding electrode is 80mm, the diameter of the upper shielding electrode is 20mm, and the chamfer radius of the edges of the two ends of the upper shielding electrode is 10 mm.
The height of the lower shielding electrode is 80mm, the diameter of the lower shielding electrode is 20mm, and the chamfer radius of the edges of the two ends of the lower shielding electrode is 10 mm.
The utility model discloses earlier use the method of pouring to pour into a mould central conductor and basin formula insulator together, then will go up shielding electrode and central conductor and basin formula insulator pouring together to will be shielded electrode and central conductor and basin formula insulator pouring together down.
The upper shielding electrode and the lower shielding electrode are made of cupronickel.
Claims (1)
1. A shielding electrode of a basin-type insulator comprises an aluminum alloy shell and the basin-type insulator, wherein the basin-type insulator is arranged in the aluminum alloy shell, and the basin-type insulator is characterized in that an upper shielding electrode is arranged at the joint of a convex surface of the basin-type insulator and a central conductor, a lower shielding electrode is arranged at the joint of a concave surface of the basin-type insulator and the central conductor, the central conductor and the basin-type insulator are cast together, the upper shielding electrode and the central conductor are cast together with the basin-type insulator, and the lower shielding electrode and the central conductor are cast together with the basin-type insulator; the periphery of the upper shielding electrode, the lower shielding electrode and the basin-type insulator is filled with SF6The gas is surrounded by the aluminum alloy shell; the height of the upper shielding electrode is 80mm, the diameter of the upper shielding electrode is 20mm, and the chamfer radius of the edges of the two ends of the upper shielding electrode is 10 mm; the height of the lower shielding electrode is 80mm, the diameter of the lower shielding electrode is 20mm, and the chamfer radius of the edges of the two ends of the lower shielding electrode is 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920702433.XU CN210110441U (en) | 2019-05-16 | 2019-05-16 | Shielding electrode of basin-type insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920702433.XU CN210110441U (en) | 2019-05-16 | 2019-05-16 | Shielding electrode of basin-type insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210110441U true CN210110441U (en) | 2020-02-21 |
Family
ID=69540625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920702433.XU Active CN210110441U (en) | 2019-05-16 | 2019-05-16 | Shielding electrode of basin-type insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210110441U (en) |
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2019
- 2019-05-16 CN CN201920702433.XU patent/CN210110441U/en active Active
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