CN201387835Y - Switchgear for high-voltage enclosed-type assembled electrical appliance - Google Patents
Switchgear for high-voltage enclosed-type assembled electrical appliance Download PDFInfo
- Publication number
- CN201387835Y CN201387835Y CN200920035768U CN200920035768U CN201387835Y CN 201387835 Y CN201387835 Y CN 201387835Y CN 200920035768 U CN200920035768 U CN 200920035768U CN 200920035768 U CN200920035768 U CN 200920035768U CN 201387835 Y CN201387835 Y CN 201387835Y
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- switch
- contact
- static contact
- switchgear
- middle contact
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Abstract
The utility model relates to a switchgear used for an electrical appliance, in particular to a switchgear for a high-voltage enclosed-type assembled electrical appliance. The switchgear comprises a static contact of an earthing switch and a static contact of an isolating switch. A three-phase switch is arranged between the static contact of the earthing switch and the static contact of the isolating switch; a retractable middle contact which is connected with a conductor is arranged in the three-phase switch; when the middle contact is located in a first work station, the middle contact is connected with the static contact of the earthing switch; when the middle contact is located in a second work station, the middle contact is connected with the static contact of the isolating switch; and when the middle contact is located in a third work station, the middle contact is respectively separated from the static contact of the earthing switch and the static contact of the isolating switch. By adopting the three-work station switch, the misoperation is completely avoided, and the three-phase mechanical interlocking is effectively carried out. Compared with the prior switchgear for the high-voltage enclosed-type assembled electrical appliance, the switchgear has the advantages of simple structure, small size, convenient maintenance and high reliability.
Description
Technical field
The utility model relates to a kind of electrical equipment switching device, high-voltage closed specifically combined electrical apparatus switching device.
Background technology
High-voltage closed combined electrical apparatus switching device all is provided with earthed switch fixed contact and static contact isolation switch, when needs ground connection, the contact that links to each other with conductor just need join with the earthed switch fixed contact, when needs socketed mutually with isolating switch, the contact that links to each other with conductor just need join with static contact isolation switch.The contact that existing high-voltage closed combined electrical apparatus switching device and earthed switch fixed contact join, and with contact that static contact isolation switch joins all be individualism, promptly be provided with a middle contact and a middle contact that joins with static contact isolation switch that joins with the earthed switch fixed contact.This structure more complicated, volume is bigger, and maintenance is also inconvenient, and misoperation may occur, and reliability is not high.
Summary of the invention
Technical problem to be solved in the utility model is: at the shortcoming that above prior art exists, it is simple to propose a kind of mechanism structure, and volume is little, and is easy to maintenance, the high-voltage closed combined electrical apparatus switching device that reliability is high.
The technical scheme that the utility model solves above technical problem is:
High-voltage closed combined electrical apparatus switching device, comprise earthed switch fixed contact and static contact isolation switch, between earthed switch fixed contact and static contact isolation switch, be provided with a threephase switch, be provided with the telescopic middle contact that links to each other with conductor in the threephase switch, when middle contact is positioned at first station, join with the earthed switch fixed contact, when middle contact is positioned at second station, join with static contact isolation switch, when middle contact is positioned at the 3rd station, all separate with static contact isolation switch with the earthed switch fixed contact.
Be provided with gear in the threephase switch, the bottom of middle contact is provided with the tooth bar with the gear interlock, also drives the rotation of tooth bar by the rotation of gear, thereby finishes the opening and closing movement of middle contact and earthed switch fixed contact and static contact isolation switch.
The utility model has the advantages that: because the threephase switch of contact in the middle of establishing in having adopted, when middle contact is in closing position with isolating switch, earthed switch just can not close a floodgate, isolating switch of combining and earthed switch are realized mechanical interlocking, the necessary separating brake of isolating switch when earthed switch is in combined floodgate, this three-station misoperation can not occur fully, has effectively carried out the three-phase mechanical interlocking.Compare existing high-voltage closed combined electrical apparatus switching device, the utility model mechanism structure is simple, and volume is little, and is easy to maintenance, the reliability height.Can reach more than 6000 times mechanical endurance.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation that middle contact and static contact isolation switch join.
Fig. 3 is the structural representation that middle contact and earthed switch fixed contact join.
Embodiment
Embodiment one
The structure of present embodiment as shown in Figure 1, a kind of high-voltage closed combined electrical apparatus switching device, comprise earthed switch fixed contact 1 and static contact isolation switch 2, between earthed switch fixed contact 1 and static contact isolation switch 2, be provided with a threephase switch 3, be provided with the telescopic middle contact 5 that links to each other with conductor 4 in the threephase switch 3.Be provided with gear 6 in the threephase switch 3, the bottom of middle contact 5 is provided with the tooth bar 7 with gear 6 interlocks, and gear 6 is an electric gear, is positioned at the bottom of threephase switch, but the rotation by motor driven gear 6.Also drive the rotation of tooth bar 7 by the rotation of gear 6, thereby finish the opening and closing movement of middle contact 5 and earthed switch fixed contact 1 and static contact isolation switch 2.
Fig. 2 is the structural representation that middle contact and static contact isolation switch join, Fig. 3 is the structural representation that middle contact and earthed switch fixed contact join, when needs connect isolating switch, only need by motor driven gear 6, thereby being contacted with static contact isolation switch 2, middle contact 5 gets final product.In like manner, when needs ground connection, only need, thereby contact 5 contacts with earthed switch fixed contact 1 in the middle of making by motor driven gear 6.When middle contact 5 is in closing position with isolating switch, earthed switch just can not close a floodgate, isolating switch of combining and earthed switch are realized mechanical interlocking, the necessary separating brake of isolating switch when earthed switch is in combined floodgate, this three-station misoperation can not occur fully, has effectively carried out the three-phase mechanical interlocking.
The utility model can also have other execution mode, and all employings are equal replaces or technical scheme that equivalent transformation forms, all drops on the claimed scope of the utility model in this.
Claims (3)
1. high-voltage closed combined electrical apparatus switching device, comprise earthed switch fixed contact and static contact isolation switch, it is characterized in that: between described earthed switch fixed contact and static contact isolation switch, be provided with a threephase switch, be provided with the telescopic middle contact that links to each other with conductor in the described threephase switch, when described middle contact is positioned at first station, join with described earthed switch fixed contact, when described middle contact is positioned at second station, join with described static contact isolation switch, when described middle contact is positioned at the 3rd station, all separate with static contact isolation switch with described earthed switch fixed contact.
2. high-voltage closed combined electrical apparatus switching device as claimed in claim 1 is characterized in that: be provided with gear in the described threephase switch, the bottom of described middle contact is provided with the tooth bar with the gear interlock.
3. high-voltage closed combined electrical apparatus switching device as claimed in claim 2, it is characterized in that: described gear is an electric gear, is positioned at the bottom of threephase switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920035768U CN201387835Y (en) | 2009-03-17 | 2009-03-17 | Switchgear for high-voltage enclosed-type assembled electrical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920035768U CN201387835Y (en) | 2009-03-17 | 2009-03-17 | Switchgear for high-voltage enclosed-type assembled electrical appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201387835Y true CN201387835Y (en) | 2010-01-20 |
Family
ID=41580376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920035768U Expired - Fee Related CN201387835Y (en) | 2009-03-17 | 2009-03-17 | Switchgear for high-voltage enclosed-type assembled electrical appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201387835Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938345A (en) * | 2012-11-09 | 2013-02-20 | 川开电气股份有限公司 | Three-position isolating-grounding switch |
| CN103560428A (en) * | 2013-10-18 | 2014-02-05 | 青岛特锐德电气股份有限公司 | Cable tank and GIS device |
-
2009
- 2009-03-17 CN CN200920035768U patent/CN201387835Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938345A (en) * | 2012-11-09 | 2013-02-20 | 川开电气股份有限公司 | Three-position isolating-grounding switch |
| CN103560428A (en) * | 2013-10-18 | 2014-02-05 | 青岛特锐德电气股份有限公司 | Cable tank and GIS device |
| CN103560428B (en) * | 2013-10-18 | 2016-04-27 | 青岛特锐德电气股份有限公司 | cable tank and GIS device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20140317 |