CN218788617U - Grounding switch for GIS gas insulated metal enclosed combined equipment - Google Patents
Grounding switch for GIS gas insulated metal enclosed combined equipment Download PDFInfo
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- CN218788617U CN218788617U CN202222276895.4U CN202222276895U CN218788617U CN 218788617 U CN218788617 U CN 218788617U CN 202222276895 U CN202222276895 U CN 202222276895U CN 218788617 U CN218788617 U CN 218788617U
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Abstract
The utility model belongs to the technical field of high-voltage electrical equipment, a earthing switch for GIS gas-insulated metal-enclosed switchgear is disclosed, including the casing the surface of casing is provided with a plurality of openings, and two openings that correspond from top to bottom are connected with earthing switch's the bushing of moving side, electric wire netting side respectively, and two openings that correspond about control are connected with isolator through basin formula insulator respectively the inside of casing is provided with connecting conductor, connecting conductor's top, bottom are connected with bushing portion's long conductor, earthing switch's quiet side detachably respectively, connecting conductor's left end, right-hand member are connected with left side conductor, right side conductor detachably connecting conductor's surface is provided with the attach fitting that is used for detachably to connect the shield cover set up the hand hole on the position that the casing corresponds the attach fitting, the hand hole is used for maintenance personal's hand to pass through to carry out follow-up dismantlement work.
Description
Technical Field
The utility model belongs to the technical field of high-voltage electrical equipment, concretely relates to a earthing switch for GIS gas insulated metal enclosed switchgear.
Background
For a power grid, a gas insulated metal enclosed switchgear (hereinafter referred to as a GIS switchgear) is one of important power transmission and transformation equipment, and the safety and reliability of the gas insulated metal enclosed switchgear are important for the safe operation of the power grid. GIS combined electrical apparatus is widely used in transformer substation in recent years because of its many advantages such as compact structure, small area, strong environmental tolerance ability, safe operation, pleasing to the eye appearance, and the organic combination in electricity is realized through the generating line between each position.
At present, in order to reduce the power failure time and facilitate maintenance, necessary grounding switches and detachable bus structures are contained in GIS combined electrical apparatus intervals and are respectively independent modules generally, so that the whole floor area of the GIS combined electrical apparatus is increased, the operation is required to be carried out from the detachable bus closest to the fault when the GIS combined electrical apparatus is maintained and disassembled, and even an intermediate structure which is not required to be disassembled is possibly disassembled, so that the workload is increased, and the intermediate module is easily damaged.
SUMMERY OF THE UTILITY MODEL
The utility model provides a earthing switch for GIS gas-insulated metal enclosed switchgear can realize that the earthing switch structure on the GIS interval can dismantle alone and install, need not to increase one section detachable transition generating line again in adjacent department, when earthing switch or other modules appear unusually or when needing to overhaul, can directly accomplish on this structure and disassemble, process convenient and fast, cost are lower.
The utility model discloses the following technical scheme of accessible realizes:
the utility model provides an earthing switch for GIS gas insulated metal seals combination equipment, includes the casing the surface of casing is provided with a plurality of openings, and two openings that correspond from top to bottom are connected with earthing switch's the bushing of moving side, electric wire netting side respectively, and two openings that correspond about control are connected with isolator through the basin formula insulator respectively the inside of casing is provided with connecting conductor, connecting conductor's top, bottom are connected with sheathed tube inside long conductor, earthing switch's quiet side detachably respectively, connecting conductor's left end, right-hand member are connected with left side conductor, right side conductor detachably respectively connecting conductor's surface is provided with the attach fitting that is used for detachably to connect the shield cover set up the hand hole on the position that the casing corresponds attach fitting, the hand hole is used for supplying maintenance personal's hand to pass through to carry out follow-up dismantlement work.
Further, the whole of connecting conductor is type three way valve form, and wherein control two relative interfaces and be used for connecting left side conductor, right side conductor, another interface is top interface promptly and is used for detachably connecting sleeve pipe contact seat, sleeve pipe contact seat is connected with long conductor be provided with the bottom opening in the relative position of connecting conductor and top interface bottom open-ended inside is provided with the quiet side complex passageway with earthing switch the bottom of passageway is provided with the installation face, be provided with the screw hole that is used for installing earthing switch's quiet side on the installation face.
Furthermore, a connecting joint is respectively arranged at the front position and the rear position of the surface of the connecting conductor, the connecting joint is used for detachably connecting the shielding cover, and the appearance of the shielding cover is coaxial with that of the shell.
Furthermore, the basin-type insulator on the right side is connected with the shell through a corrugated pipe, and the basin-type insulator is connected with the right side conductor through a basin contact seat.
Furthermore, the sleeve contact seat and the long conductor, and the basin contact seat and the right conductor are electrically connected through the spring contact fingers.
Furthermore, the top of the connecting conductor is connected with the long conductor inside the sleeve, the bottom of the connecting conductor is connected with the static side of the grounding switch, and the left end of the connecting conductor is connected with the left conductor and the right conductor through flanges.
The utility model discloses profitable technological effect as follows:
1. with the help of casing, connecting conductor with isolator, earthing switch detachably link together alone, need not to increase one section detachable transition generating line again in adjacent department, when isolator appears unusually or need overhaul, can directly be in the utility model discloses a structural completion is disassembled, process convenient and fast, cost are more excellent.
2. The shielding cover is sleeved on the surface of the connecting conductor of the special-shaped structure, so that the tip effect is avoided, and the tip discharge is reduced.
3. The whole structure is simple, the processing is convenient, and the popularization and the application are convenient.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a first schematic structural diagram of the connection conductor of the present invention;
fig. 3 is a second schematic structural view of the connection conductor of the present invention;
the grounding switch comprises a shell 1, a left-side basin-type insulator 2, a left-side conductor 3, a middle conductor 4, a connecting joint 401, a mounting surface 402, a sleeve contact seat 5, a right-side conductor 6, a right-side contact seat 7, a right-side basin-type insulator 8, a corrugated pipe 9, a grounding switch 10, a grounding switch static side 11, a grounding switch dynamic side 12, a sleeve pipe 13 and a long conductor 13.
Detailed Description
The following detailed description of the preferred embodiments of the invention is provided with reference to the accompanying drawings.
As shown in fig. 1, the utility model provides an earthing switch for GIS gas insulated metal enclosed switchgear, which comprises a housin 1, be provided with a plurality of openings on the surface of casing 1, two openings that correspond from top to bottom are respectively with earthing switch's side 11 that moves, the sleeve pipe 12 of electric wire netting side is connected, it is connected with isolator through the basin formula insulator respectively to control two openings that correspond, inside at casing 1 is provided with connecting conductor 4, this connecting conductor 4's top, the bottom respectively with the inside long conductor 13 of sleeve pipe 12, earthing switch's quiet side 10 detachably connects, this connecting conductor 4's left end, the right-hand member respectively with left side conductor 3, right side conductor 4 detachably is connected, be provided with the attach fitting 401 that is used for detachably to connect the shield cover on connecting conductor 4's surface, set up the hand hole on casing 1 corresponds the position of attach fitting 401, this hand hole is used for user's hand to pass through, so that follow-up dismantlement work is carried out. With the help of casing 1, connecting conductor 4 with isolator, earthing switch detachably link together alone, need not to increase one section detachable transition generating line again in adjacent department, earthing switch's quiet side links together through connecting conductor 4 detachably with moving the side simultaneously, appears unusually or when needing to overhaul when earthing switch or other modules, can directly be the utility model discloses a structural completion is disassembled, process convenient and fast, cost are more excellent.
The method comprises the following specific steps:
the shell 1 is in a six-end opening shape, in addition to four openings of a cross shape as shown in figure 1, namely an upper opening, a lower opening, a left opening and a right opening, the front side and the rear side are respectively provided with a hand hole for operation and use during disassembly and assembly, and the upper opening of the shell can be provided with a sleeve 12 on the side of a power grid; a left basin-type insulating basin 2 is installed at the left opening through screws, and a left conductor 3 is installed on the left basin-type insulating basin 2 through screws; the right opening is sequentially provided with a corrugated pipe 9 and a right basin-type insulator 8 by using screws, the right basin-type insulator 8 is provided with a right contact seat 7 by using screws, the right conductor 6 is connected with the right contact seat 7 in an inserting mode, and the right conductor and the right contact seat can be electrically connected by using spring contact fingers; the lower opening is provided with a movable side 11 of the grounding switch through a screw.
The connecting conductor 4 arranged in the shell 1 is integrally in a three-way valve-like shape, as shown in fig. 2-3, two interfaces which are opposite to each other at the left and right are used for connecting a left conductor 3 and a right conductor 6, the other interface, namely a top interface, is used for detachably connecting a sleeve contact seat 5, the sleeve contact seat 5 and a long conductor 13 are connected in a plugging mode, a spring contact finger can be arranged, a bottom opening is arranged at the position, opposite to the top interface, of the connecting conductor 4, a channel matched with the static side 10 of the grounding switch is arranged in the bottom opening, an installation surface 402 is arranged at the bottom of the channel, a threaded hole for installing the static side 10 of the grounding switch is arranged on the installation surface 402, in order to ensure that the dynamic and static contacts of the grounding switch can be matched with each other to realize the design function of the grounding switch, the axial center lines of the dynamic and static contacts are designed to be coincident with the bottom opening of the connecting conductor 4, and the static and dynamic sides of the grounding switch can be respectively installed by virtue of the ingenious matching of the connecting conductor 4 and the shell 1, and subsequent maintenance is convenient.
For the convenience of disassembly, the top end of the connecting conductor 4 is connected with the long conductor 13 inside the sleeve 12, the bottom end of the connecting conductor is connected with the static side 10 of the grounding switch, the left end of the connecting conductor 4 is connected with the left side conductor 3, and the right end of the connecting conductor 4 is connected with the right side conductor 6 through flanges.
According to the installation requirement, the connecting conductor 4 is of a special-shaped structure, in order to avoid a tip effect, a shielding case is sleeved on the surface of the connecting conductor 4, the shape of the shielding case is coaxial with the shape of the shell 1, and the shielding case is detachably connected by arranging a connecting joint 401 at the front position and the rear position of the surface of the connecting conductor 4 respectively.
When using the utility model discloses an isolation earthing switch, the dismouting step is as follows: the dismounting steps of the detachable structure of the isolating and grounding switch in the GIS interval are as follows (the following operations are all carried out from the front and rear side ports of the shell):
1) The SF6 gas in the detachable structure of the utility model is recovered through the adjacent air chamber meter valve;
2) The movable side 11 and the sleeve 12 of the grounding switch are externally detached from the screw connected with the shell 1 to finish the detachment;
3) The cover plates at the positions corresponding to the hand holes at the front side and the rear side of the shell 1 are removed, an operator extends arms from the hand holes at the front side and the rear side of the shell 1, the shielding case is firstly removed, then the fastening screws of the connecting conductor 4, the left conductor 3 and the right conductor 6 are unscrewed, then the connecting conductor 4 and the sleeve contact seat 5 at the upper side are taken out together, and then the right conductor 6 can be pulled out;
4) Screwing off a fastening screw for fastening the left conductor 3 on the left basin-type insulator 2 by using an L-shaped wrench, and detaching the left conductor 3;
5) Screws for fixing the basin-type insulators 2 and 8 at two sides with the shell 1 and the corrugated pipe 9 are removed from the outer side, and the shell 1 can be integrally withdrawn from the GIS interval by compressing the corrugated pipe 9.
The mounting step is the reverse of the disassembly and assembly step.
Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these embodiments are merely illustrative and various changes or modifications may be made therein without departing from the principles and spirit of the invention, and therefore, the scope of the invention is defined by the appended claims.
Claims (6)
1. The utility model provides a earthing switch for GIS gas-insulated metal enclosed switchgear which characterized in that: including the casing the surface of casing is provided with a plurality of openings, and two openings that correspond from top to bottom are connected with earthing switch's the bushing that moves side, electric wire netting side respectively, and two openings that correspond about control are connected with isolator through basin formula insulator respectively the inside of casing is provided with connecting conductor, connecting conductor's top, bottom are connected with sheathed tube inside long conductor, earthing switch's quiet side detachably respectively, connecting conductor's left end, right-hand member are connected with left side conductor, right side conductor detachably respectively connecting conductor's surface is provided with the attach fitting that is used for detachably to connect the shield cover set up the hand hole on the casing corresponds attach fitting's the position, the hand hole is used for supplying maintenance personal's hand to pass through to carry out follow-up dismantlement work.
2. The grounding switch for GIS gas insulated metal enclosed switchgear according to claim 1, characterized in that: the whole connecting conductor is in a three-way valve shape, two left and right opposite interfaces are used for connecting a left conductor and a right conductor, the other interface is a top interface and is used for detachably connecting a sleeve contact seat, the sleeve contact seat is connected with a long conductor, a bottom opening is arranged on the position, opposite to the top interface, of the connecting conductor, a channel matched with the static side of the grounding switch is arranged inside the bottom opening, an installation surface is arranged at the bottom of the channel, and a threaded hole used for installing the static side of the grounding switch is formed in the installation surface.
3. The earthing switch for GIS gas insulated metal enclosed switchgear according to claim 2, characterized in that: the front and back positions of the surface of the connecting conductor are respectively provided with a connecting joint which is used for detachably connecting a shielding case, and the appearance of the shielding case is coaxial with that of the shell.
4. The grounding switch for GIS gas insulated metal enclosed switchgear according to claim 2, characterized in that: the basin-type insulator on the right side is connected with the shell through the corrugated pipe, and is connected with the right side conductor through the basin contact seat.
5. The earthing switch for GIS gas insulated metal enclosed switchgear according to claim 4, characterized in that: the sleeve contact seat is electrically connected with the long conductor, and the basin contact seat is electrically connected with the right conductor through the spring contact fingers.
6. The grounding switch for GIS gas insulated metal enclosed switchgear according to claim 1, characterized in that: the top end of the connecting conductor is connected with the long conductor and the bottom end inside the sleeve and the static side of the grounding switch, and the left end of the connecting conductor is connected with the left side conductor and the right end of the connecting conductor is connected with the right side conductor through flanges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222276895.4U CN218788617U (en) | 2022-08-29 | 2022-08-29 | Grounding switch for GIS gas insulated metal enclosed combined equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222276895.4U CN218788617U (en) | 2022-08-29 | 2022-08-29 | Grounding switch for GIS gas insulated metal enclosed combined equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218788617U true CN218788617U (en) | 2023-04-04 |
Family
ID=86504625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222276895.4U Active CN218788617U (en) | 2022-08-29 | 2022-08-29 | Grounding switch for GIS gas insulated metal enclosed combined equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218788617U (en) |
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2022
- 2022-08-29 CN CN202222276895.4U patent/CN218788617U/en active Active
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