CN201629255U - Three-station isolation grounding switch - Google Patents
Three-station isolation grounding switch Download PDFInfo
- Publication number
- CN201629255U CN201629255U CN2010201591241U CN201020159124U CN201629255U CN 201629255 U CN201629255 U CN 201629255U CN 2010201591241 U CN2010201591241 U CN 2010201591241U CN 201020159124 U CN201020159124 U CN 201020159124U CN 201629255 U CN201629255 U CN 201629255U
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- China
- Prior art keywords
- fixed contact
- contact
- ground connection
- isolation
- rotating shaft
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- Expired - Fee Related
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- Gas-Insulated Switchgears (AREA)
Abstract
The utility model relates to the technical field of a plug-in type combined electrical appliance, in particular to a three-station isolation grounding switch; the three-station isolation grounding switch comprises a shell, a movable contact, an isolation fixed contact and a grounding fixed contact, the isolation fixed contact is arranged at the upper part in the shell, the grounding fixed contact is arranged at one side in the shell and is vertical to the isolation fixed contact, a rotating shaft is extended in the shell from one side of the shell, a rotating shaft is vertical to the plane formed by the isolation fixed contact and the grounding fixed contact, the movable contact is arranged at the front end, the rotating shaft drives the movable contact to do plane rotating movement, and three stations are realized under the control of an operation mechanism. In the utility model, the rotating angle of the movable contact is increased, and the three-station isolation grounding switch has the characteristics of simple and compact structure, low cost, stable performance, high switch operating accuracy and high reliability and the like.
Description
Technical field
The utility model relates to a kind of technical field of plug-in type combined electrical apparatus, specifically a kind of three station isolation earthing switch.
Background technology
At present in the high-voltage appliance switch technical field, air insulation switchgear, ubiquity that device layout is scattered, floor space is big, install complicatedly, and subsidiary control loop disperses, and poor reliability is difficult to characteristics such as maintenance; Gas-insulated switchgear is because integrated level is too high, in case there is a circuit breaker to go wrong, so whole transformer station all will have a power failure, and has enlarged the power failure scope, loses bigger.The plug-in type combined electrical apparatus is a kind of novel outdoor high-voltage combined electrical apparatus between conventional air insulation switchgear and gas-insulated switchgear, and its compact conformation, characteristics such as floor space is little, application is simple and convenient are used more and more widely it.The plug-in type combined electrical apparatus adopts the design of isolating/grounding switch three stations, and a shared electric operating mechanism has effectively been avoided misoperation.Three-station is mainly assembled its complex structure, cost height, the poor accuracy of switch motion, poor reliability in the plug-in type combined electrical apparatus that uses in the electrical network by imported equipments and parts at present.
Summary of the invention
The purpose of this utility model provides a kind of simple and compact for structure, and cost is low, stable performance, switch motion accuracy height, good reliability three station isolation earthing switch.
The technical solution adopted in the utility model is: a kind of three station isolation earthing switch, comprise housing, moving contact, isolate fixed contact and ground connection fixed contact, be provided with the isolation fixed contact at the housing internal upper part, the ground connection fixed contact is arranged on the interior side of housing and is vertical configuration with the isolation fixed contact, rotating shaft stretches in the housing from housing one side, rotating shaft is perpendicular with the plane that isolates the formation of fixed contact and ground connection fixed contact, its front end is arranged on the moving contact seat of enclosure interior, moving contact is vertically set on the rotating shaft front portion, rotating shaft drives moving contact and rotatablely moves as the plane, and under the control of operating mechanism, realize three stations, that is: moving contact rotates to when isolating fixed contact, contacts into the isolation position with the isolation fixed contact; When moving contact rotates to the ground connection fixed contact, contact into the ground connection position with the ground connection fixed contact; Moving contact is the disconnection position with isolating when fixed contact does not all contact with the ground connection fixed contact.
Described rotating shaft is cast into one by power shaft, insulating bar and cutter shaft three parts, and power shaft is to stretch out outer that part of of housing, and cutter shaft is for connecting that part of of moving contact, and insulating bar is a mid portion.
On the plane that isolates the formation of fixed contact and ground connection fixed contact, moving contact is 135 degree with the angle of isolating the formation of fixed contact and ground connection fixed contact.
The utility model merges the isolation earthing switch that is designed to one three station with isolating switch and earthed switch, and only design has a moving contact, by the rotating shaft driven rotary, realize three station states, and volume is little, and simple in structure, cost is low; Moving contact adopts plane rotation electrical ties mode, stable performance with isolation fixed contact and ground connection fixed contact; The corner of the utility model three station bodies design is 135 degree, and the initial position of moving contact is for disconnecting the position, and 135 degree if moving contact turns clockwise arrive and isolate fixed contact, realize isolation features; Moving contact then arrives the ground connection fixed contact if be rotated counterclockwise 135 degree, is grounded function, moving contact is 135 degree with isolation fixed contact and ground connection fixed contact, strengthen the movable contact head-turned angle, reduced rotation error, guaranteed switch motion accuracy and reliability.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the left view of Fig. 1
Embodiment
Now in conjunction with the accompanying drawings the utility model is further described, Fig. 1 is a kind of embodiment of the present utility model, mainly comprises moving contact 1, housing 2, isolates fixed contact 3 and ground connection fixed contact 4 etc.Be provided with isolation fixed contact 3 at the housing internal upper part, ground connection fixed contact 4 is arranged on the interior side of housing and is vertical configuration with isolation fixed contact 3.Rotating shaft stretches in the housing from housing one side, and rotating shaft is perpendicular with the plane that isolates fixed contact 3 and 4 formation of ground connection fixed contact.The front end of rotating shaft is arranged on the moving contact seat 5 of enclosure interior, and moving contact seat 5 is used for fixing rotating shaft, guarantees the rotating shaft slow-roll stabilization.Moving contact 1 is vertically set on the rotating shaft front portion, and rotating shaft drives moving contact 1 and rotatablely moves as the plane.Rotating shaft is cast into one by power shaft 6, insulating bar 7 and cutter shaft 8 three parts in the present embodiment, and power shaft 6 is for stretching out that part of housing outside, and cutter shaft 8 is that part of for connection moving contact 1, and insulating bar 7 is a mid portion, sees Fig. 2.Operating mechanism control drives power shaft 6 rotations, thereby drives moving contact 1 rotation.In the present embodiment, on the plane that isolates fixed contact 3 and 4 formation of ground connection fixed contact, moving contact 1 is 135 degree with the angle of isolating fixed contact 3 and ground connection fixed contact 4.
During use, operating mechanism control rotating shaft drives moving contact 1 rotation, realizes three stations, that is: moving contact 1 135 degree that turn clockwise contacts the realization isolation features with isolating fixed contact 3; Moving contact 1 is rotated counterclockwise 135 degree, contacts with ground connection fixed contact 4, is grounded function; And the initial bit of moving contact 1 is the disconnection position with isolating when fixed contact 3 does not all contact with ground connection fixed contact 4 promptly.
The utlity model has simple and compact for structurely, cost is low, stable performance, the characteristics such as switch motion accuracy height, reliability are strong.
Claims (3)
1. station isolation earthing switch, comprise housing, moving contact, isolate fixed contact and ground connection fixed contact, it is characterized in that: be provided with the isolation fixed contact at the housing internal upper part, the ground connection fixed contact is arranged on the interior side of housing and is vertical configuration with the isolation fixed contact, rotating shaft stretches in the housing from housing one side, rotating shaft is perpendicular with the plane that isolates the formation of fixed contact and ground connection fixed contact, its front end is arranged on the moving contact seat of enclosure interior, moving contact is vertically set on the rotating shaft front portion, rotating shaft drives moving contact and rotatablely moves as the plane, and under the control of operating mechanism, realize three stations, that is: moving contact rotates to when isolating fixed contact, contacts into the isolation position with the isolation fixed contact; When moving contact rotates to the ground connection fixed contact, contact into the ground connection position with the ground connection fixed contact; Moving contact is the disconnection position with isolating when fixed contact does not all contact with the ground connection fixed contact.
2. three station isolation earthing switch according to claim 1, it is characterized in that: described rotating shaft is cast into one by power shaft, insulating bar and cutter shaft three parts, power shaft is to stretch out outer that part of of housing, and cutter shaft is for connecting that part of of moving contact, and insulating bar is a mid portion.
3. three station isolation earthing switch according to claim 1 and 2 is characterized in that: on the plane that isolates the formation of fixed contact and ground connection fixed contact, moving contact is 135 degree with the angle of isolating fixed contact and ground connection fixed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201591241U CN201629255U (en) | 2010-04-12 | 2010-04-12 | Three-station isolation grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201591241U CN201629255U (en) | 2010-04-12 | 2010-04-12 | Three-station isolation grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201629255U true CN201629255U (en) | 2010-11-10 |
Family
ID=43060653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201591241U Expired - Fee Related CN201629255U (en) | 2010-04-12 | 2010-04-12 | Three-station isolation grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201629255U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429041A (en) * | 2015-12-28 | 2016-03-23 | 北京合纵科技股份有限公司 | Air insulated high-voltage switch cabinet |
-
2010
- 2010-04-12 CN CN2010201591241U patent/CN201629255U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429041A (en) * | 2015-12-28 | 2016-03-23 | 北京合纵科技股份有限公司 | Air insulated high-voltage switch cabinet |
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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: 20101110 Termination date: 20120412 |