CN213601807U - Shielding device capable of preventing interphase and earth discharge - Google Patents
Shielding device capable of preventing interphase and earth discharge Download PDFInfo
- Publication number
- CN213601807U CN213601807U CN202022703621.XU CN202022703621U CN213601807U CN 213601807 U CN213601807 U CN 213601807U CN 202022703621 U CN202022703621 U CN 202022703621U CN 213601807 U CN213601807 U CN 213601807U
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- CN
- China
- Prior art keywords
- flexible coupling
- seat
- shields
- turning arm
- connecting lever
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- 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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- 230000016507 interphase Effects 0.000 title description 4
- 230000008878 coupling Effects 0.000 claims abstract description 18
- 238000010168 coupling process Methods 0.000 claims abstract description 18
- 238000005859 coupling reaction Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 4
- 230000005684 electric field Effects 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000012795 verification Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Gas-Insulated Switchgears (AREA)
Abstract
The utility model discloses a can prevent to reach shielding device to ground discharge mutually, touch seat and combined floodgate including lower generating line, turning arm, moving tool bit, ground connection and touch the seat, the turning arm is fixed on turning arm is epaxial, moves the tool bit and fixes on the turning arm, the turning arm winds turning arm axle gyration in-process, drive move the tool bit and be in ground connection touches the seat and is touched and switch over between the seat, the turning arm with connect through flexible coupling electricity conduction between the lower generating line, its characterized in that still includes two shields, and two shields set up the both sides of flexible coupling, the flexible coupling is wrapped up in two shields, and two shields shield are shielded the flexible coupling. The utility model discloses a can effectively solve latent insulation problem to the installation shield cover of flexible coupling both sides. Greatly saving the insulation verification time in the factory, ensuring the product quality, and avoiding after-sale service caused by the reason. Not only saves the maintenance cost, but also improves the product competitiveness.
Description
Technical Field
The utility model relates to a switchgear technical field especially relates to use in the aspect of the three station switches of looped netowrk cabinet rotation type can prevent looks and to ground discharge's shield assembly.
Background
The three-position isolation grounding switch is used as an important part in the gas insulation ring main unit and comprises a direct-acting three-position switch and a rotary three-position switch. In the rotary three-station switch, a connection mode that flexible connection is used as a conductor is used for connecting the movable tool bit and the lower bus, which is a scheme designed for a ring main unit switch.
The isolating switch and the grounding switch are frequently operated components, the requirements on soft connection are higher, and if sharp-angled burrs occur on the surface of the soft connection, the problem of phase or ground discharge can be caused. Moreover, after mass production or frequent operation, there may occur phase or ground discharge, which may cause hidden troubles in product quality.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is to current rotation type three-station switch, adopts the above-mentioned not enough that the flexible coupling exists and provides a can prevent to reach the shielding device that discharges to ground mutually.
The utility model discloses the technical problem that will solve can realize through following technical scheme:
the utility model provides a can prevent to reach shielding device to ground discharge between each other, includes lower generating line, connecting lever, moves the tool bit, ground connection touches the seat and closes a floodgate touches the seat, the connecting lever is fixed on the connecting lever is epaxial, moves the tool bit and fixes on the connecting lever, the connecting lever winds connecting lever axle gyration in-process, the drive move the tool bit and be in ground connection touches the seat and closes a floodgate and touches and switch over between the seat, the connecting lever with through the flexible coupling conductive connection between the lower generating line, its characterized in that still includes two shields, two shields set up the both sides of flexible coupling will the flexible coupling is wrapped up in two shields, and two shields shield to the flexible coupling.
In a preferred embodiment of the present invention, two shield cases are mounted on the lower bus bar by mounting blocks.
In a preferred embodiment of the present invention, the outer circumference of each shield is rounded to achieve uniform electric field.
Due to the adoption of the technical scheme, the utility model discloses after the closed angle burr appears to the flexible coupling surface, perhaps produce the problem of discharging mutually or to ground. A shielding cover is respectively arranged on two sides of the flexible connection, so that the flexible connection is wrapped in the shielding cover. And the electric field is uniform through the appearance design of the shielding cover, so that the problem of interphase earth discharge which may occur after sharp-angled burrs appear on the surface of the flexible connection is solved.
The utility model discloses a can effectively solve latent insulation problem to the installation shield cover of flexible coupling both sides, save the interior insulation verification time of factory greatly, still guarantee the quality of product, avoid the after-sales service etc. that cause by this reason. Not only saves the maintenance cost, but also improves the product competitiveness.
Drawings
Fig. 1 is a reference diagram of the shielding device for preventing the inter-phase and earth discharge according to the present invention.
Fig. 2 is an assembly diagram between two shielding cases and the mounting block of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 and 2, the shielding device capable of preventing phase-to-ground discharge comprises a lower bus 1, a crank arm 5, a moving tool bit 4, a grounding contact base 2 and a closing contact base 3, wherein the crank arm 5 is fixed on a crank arm shaft 9, the moving tool bit 4 is fixed on the crank arm 5, the moving tool bit 4 is driven to switch between the grounding contact base 2 and the closing contact base 3 in the rotation process of the crank arm 5 around the crank arm shaft 9, and the three-station operating mechanism can rotate to the grounding contact base 2 and the closing contact base 3
The crank arm 5 is in conductive connection with the lower bus 1 through a flexible connection 6 to form a loop.
The utility model is characterized in that: still include two shield cover 7, two shield cover 7 settings are in two sides of flexible coupling 6, include flexible coupling 6 in two shield cover 7, and two shield cover 7 shield flexible coupling 6. In particular, the two shielding cases 7 are mounted on the lower bus bar 1 by means of mounting blocks 8, the specific mounting means being adjustable to the needs of the person skilled in the art.
The periphery of each shield can 7 is circular and rounded to achieve an even electric field.
The foregoing has described the general principles, features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a can prevent to reach shielding device to ground discharge between each other, includes that lower generating line, connecting lever, move the tool bit, ground connection touch the seat and combined floodgate touches the seat, the connecting lever is fixed on the connecting lever is epaxial, moves the tool bit and fixes on the connecting lever, the connecting lever winds connecting lever axle gyration in-process, the drive move the tool bit and be in ground connection touches the seat and switches over between the seat with the combined floodgate touches, the connecting lever with through the electrically conductive connection of flexible coupling between the lower generating line, its characterized in that still includes two shields, two shields set up the both sides of flexible coupling, the flexible coupling is wrapped up in two shields, and two shields shield.
2. The shielding apparatus of claim 1, wherein two shielding cases are mounted on said lower bus bar by means of mounting blocks.
3. A shielding device for preventing phase-to-ground discharge as claimed in claim 1 or 2, wherein the outer circumference of each shield is rounded to achieve uniform electric field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022703621.XU CN213601807U (en) | 2020-11-20 | 2020-11-20 | Shielding device capable of preventing interphase and earth discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022703621.XU CN213601807U (en) | 2020-11-20 | 2020-11-20 | Shielding device capable of preventing interphase and earth discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213601807U true CN213601807U (en) | 2021-07-02 |
Family
ID=76596975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022703621.XU Active CN213601807U (en) | 2020-11-20 | 2020-11-20 | Shielding device capable of preventing interphase and earth discharge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213601807U (en) |
-
2020
- 2020-11-20 CN CN202022703621.XU patent/CN213601807U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |