CN220895265U - Oval insulating spacer for GIS - Google Patents
Oval insulating spacer for GIS Download PDFInfo
- Publication number
- CN220895265U CN220895265U CN202322400054.4U CN202322400054U CN220895265U CN 220895265 U CN220895265 U CN 220895265U CN 202322400054 U CN202322400054 U CN 202322400054U CN 220895265 U CN220895265 U CN 220895265U
- Authority
- CN
- China
- Prior art keywords
- spacer body
- gis
- shielding ring
- spacer
- conductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 125000006850 spacer group Chemical group 0.000 title claims abstract description 65
- 239000004020 conductor Substances 0.000 claims abstract description 28
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 4
- 230000005684 electric field Effects 0.000 description 5
- 239000012212 insulator Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Installation Of Bus-Bars (AREA)
Abstract
The utility model discloses an elliptical insulating spacer for a GIS, which comprises a spacer body, wherein the spacer body is elliptical, three basin bodies are arranged in the spacer body and are arranged at equal intervals along the length direction of the spacer body, a conductor is arranged at the center of the basin body, and threaded holes are respectively formed at two ends of the conductor; the edge of the spacer body is provided with a flange, and a plurality of threaded inserts are uniformly arranged on the flange; the flange inboard is provided with the shielding ring, and the shielding ring is connected with the screw insert. By arranging the spacer body in an oval shape, the space occupied by the insulating spacer body in the GIS shell can be reduced, and the miniaturized design of the GIS is facilitated; open shielding rings are coaxially arranged outside the three conductors respectively, so that the generation of corona can be eliminated, and the detection of partial discharge in the GIS can be realized through an external partial discharge detection device.
Description
Technical Field
The utility model relates to the technical field of GIS insulation, in particular to an elliptical insulation spacer for GIS.
Background
The insulating spacer is formed by integrally casting epoxy resin and a conductor, the inside and the outside of the basin body are arc-shaped surfaces, and a plurality of connecting pieces which are uniformly distributed are arranged on the basin body. The insulating spacer is mainly used in a gas-insulated metal-enclosed switchgear (GIS) of a 110KV and above power system, and plays roles of insulating, supporting, balancing an electric field, connecting or sealing and the like.
With the rapid development of the international GIS technology, the industry is greatly developing the research on miniaturization of GIS, but the inventor discovers that the technology has at least the following problems in the process of realizing the technical scheme in the embodiment of the utility model: the existing insulating spacers are of round structures, so that the length of the GIS shell is increased during layout, and the miniaturized design of the GIS is not facilitated.
Based on the technical problems, the inventor provides an elliptical insulating spacer for GIS.
Disclosure of utility model
The utility model aims to provide an elliptical insulating spacer for GIS, which solves the technical problems in the background art, and is realized by the following technical scheme:
An oval insulating spacer for a GIS comprises a spacer body, wherein the spacer body is oval, three basin bodies are arranged in the spacer body and are arranged at equal intervals along the length direction of the spacer body, a conductor is arranged in the center of the basin body, and threaded holes are respectively formed in two ends of the conductor; the edge of the spacer body is provided with a flange, and a plurality of connecting holes are uniformly formed in the flange.
Further, threaded inserts are provided in the connection holes.
Further, the spacer body is made of epoxy resin, and the conductor and the threaded insert are fixed in the spacer body through pouring.
Further, a shield ring is disposed in the spacer body, the shield ring being disposed coaxially with the conductor.
Further, the shielding ring is spiral spring-shaped, the shielding ring is an open loop, the side face of the spacer body is provided with an adapter, and two ends of the shielding ring are connected with the adapter.
Further, a shielding ring is arranged in the spacer body, the shielding ring is arranged along the inner edge of the flange, and the shielding ring is electrically connected with the threaded insert.
The technical scheme provided by the embodiment of the application has at least the following technical effects or advantages:
1. By arranging the spacer body in an oval shape, the space occupied by the insulating spacer body in the GIS shell can be reduced, and the miniaturized design of the GIS is facilitated;
2. through the coaxial shielding ring that sets up open-loop respectively outside three conductor, can eliminate the production of corona, can realize the detection to partial discharge in the GIS through external partial discharge detection device again, in addition, through the connection with different shielding rings, can also conveniently fix a position partial discharge.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a schematic diagram of an embodiment of the present application;
FIG. 2 is a vertical cross-sectional view of an embodiment of the present application;
FIG. 3 is a horizontal cross-sectional view of an embodiment of the present application;
Fig. 4 is a horizontal cross-sectional view of another embodiment of the present application.
The symbols in the drawings are: 1. a spacer body; 11. a basin body; 12. a flange; 121. a connection hole; 2. a conductor; 21. a threaded hole; 3. a threaded insert; 3. a threaded insert; 4. a shielding ring; 5. an adapter.
Detailed Description
In order that the manner in which the above recited features of the present utility model can be better understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
An oval insulating spacer for GIS as shown in fig. 1-3 comprises a spacer body 1, a conductor 2 and a threaded insert 3. The spacer body 1 is oval, is provided with three basin bodies 11 in the spacer body 1, and three basin bodies 11 are equidistant along the length direction of spacer body 1 to be set up, and three conductor 2 are installed respectively in the center of three basin bodies 11, and five screw holes 21 have been seted up respectively at the both ends of conductor 2, and guide arm or other functional element pass through flange (not shown) and are connected with conductor 2. The edge of the spacer body 1 is provided with a flange 12, fourteen connecting holes 121 are uniformly formed in the flange 12, and the threaded inserts 3 are fixed in the connecting holes 121. Wherein, the spacer body 1 is epoxy resin material, and conductor 2, screw insert 3 are all fixed in spacer body 1 through pouring, and the both ends external diameter of conductor 2 is greater than the internal diameter in middle part to avoid the drop of metal connection 2. The conductor 2 is arranged in the spacer body 1 to realize connection of the guide rods, so that the tightness of the insulating spacer can be improved; the arrangement of the threaded insert 3 can reduce the local pressure of the bolt on the spacer body 1 and avoid the uneven stress and breakage of the epoxy resin.
As shown in fig. 2, as a preferred embodiment of the present application, a shielding ring 4 is disposed in the spacer body 1, the shielding ring 4 is made of a conductive material, and the shielding ring 4 is disposed coaxially with the conductor 2. The shielding ring 4 can shield corona generated by the conductor, reduce bearing voltage of an insulator part close to the conductor, and improve electric field distribution conditions, so that corona onset voltage and flashover voltage of the basin-type insulator are effectively improved, and electric field requirements under high voltage level are met.
As shown in fig. 1-3, as a preferred embodiment of the present application, the shielding ring 4 is in a spiral spring shape, and the shielding ring 4 is in an open loop structure, six adapters 5 are fixed on the side surface of the spacer body 1, two ends of the shielding ring 4 are respectively connected with the adapters 5 through wires, the adapters 5 are electrically connected with the partial discharge detection device, and the partial discharge detection can be performed on the GIS through the insulating spacer, so that the flange hole for installing the antenna is prevented from being opened on the housing, and the tightness of the GIS is improved. The position of the partial discharge can also be determined more easily by connection to the shielding ring 4 in different positions. The two adapters 5 of the middle shielding ring 4 and the adapters 5 of the two shielding rings 4 on two sides are respectively positioned on two sides of the insulating spacer, so as to facilitate connection of the partial discharge detection device.
As shown in fig. 4, as a preferred embodiment of the present application, a shielding ring 4 is provided in the spacer body 1, the shielding ring 4 is a spring-shaped copper wire, the shielding ring 4 is provided inside the screw insert 3 along the rim of the spacer body 1, and the outer edge of the shielding ring 4 is welded with the outer wall of the screw insert 3. The shielding ring 4 can shield corona generated by the conductor, reduce bearing voltage of an insulator part close to the conductor, and improve electric field distribution conditions, so that corona onset voltage and flashover voltage of the basin-type insulator are effectively improved, and electric field requirements under high voltage level are met.
The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages:
1. By arranging the spacer body in an oval shape, the space occupied by the insulating spacer body in the GIS shell can be reduced, and the miniaturized design of the GIS is facilitated;
2. through the coaxial shielding ring that sets up open-loop respectively outside three conductor, can eliminate the production of corona, can realize the detection to partial discharge in the GIS through external partial discharge detection device again, in addition, through the connection with different shielding rings, can also conveniently fix a position partial discharge.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. The oval insulating spacer for the GIS is characterized by comprising a spacer body, wherein the spacer body is oval, three basin bodies are arranged in the spacer body, the three basin bodies are arranged at equal intervals along the length direction of the spacer body, a conductor is arranged in the center of the basin body, and threaded holes are respectively formed in two ends of the conductor; the edge of the spacer body is provided with a flange, and a plurality of connecting holes are uniformly formed in the flange.
2. An oval insulating spacer for GIS according to claim 1, wherein threaded inserts are provided in the connection holes.
3. The oval insulating spacer for GIS according to claim 2, wherein the spacer body is made of epoxy resin, and the conductor and the threaded insert are fixed in the spacer body by casting.
4. An oval insulating spacer for GIS according to claim 1, wherein a shielding ring is provided in the spacer body, the shielding ring being arranged coaxially with the conductor.
5. The oval insulating spacer for GIS according to claim 4, wherein the shielding ring is in a shape of a coil spring, and the shielding ring is in an open loop; the side of the spacer body is provided with an adapter, and two ends of the shielding ring are connected with the adapter.
6. The oval insulating spacer for GIS according to claim 2, wherein a shielding ring is provided in the spacer body, the shielding ring is provided along an inner edge of the flange, and the shielding ring is electrically connected with the threaded insert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322400054.4U CN220895265U (en) | 2023-09-05 | 2023-09-05 | Oval insulating spacer for GIS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322400054.4U CN220895265U (en) | 2023-09-05 | 2023-09-05 | Oval insulating spacer for GIS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220895265U true CN220895265U (en) | 2024-05-03 |
Family
ID=90843191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322400054.4U Active CN220895265U (en) | 2023-09-05 | 2023-09-05 | Oval insulating spacer for GIS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220895265U (en) |
-
2023
- 2023-09-05 CN CN202322400054.4U patent/CN220895265U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |