CN201732717U - SF6 circuit breaker static contact assembly structure - Google Patents
SF6 circuit breaker static contact assembly structure Download PDFInfo
- Publication number
- CN201732717U CN201732717U CN2010202283407U CN201020228340U CN201732717U CN 201732717 U CN201732717 U CN 201732717U CN 2010202283407 U CN2010202283407 U CN 2010202283407U CN 201020228340 U CN201020228340 U CN 201020228340U CN 201732717 U CN201732717 U CN 201732717U
- Authority
- CN
- China
- Prior art keywords
- groove
- circuit breaker
- terminal block
- static contact
- assembly structure
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to the technical field of power system equipment, in particular to a novel SF6 circuit breaker static contact assembly structure which comprises a wiring board, wherein the middle of the wiring board is sunk to form a groove, a static contact seat is placed in the groove of the wiring board and connected and fixed with the inner surface of the groove through bolts, and a cover plate is arranged at the outer side of the groove and connected with the wiring board through the bolts. The assembly structure has the characteristics of reasonable structure, simple and convenient manufacturing and installation, and high equipment operational reliability.
Description
Technical field
The utility model relates to a kind of technical field of power system device, specifically a kind of new structure of SF6 circuit breaker fixed contact assembling.
Background technology
The SF6 circuit breaker is one of power plant, electric substation main electric control appliance commonly used, has arc quenching characteristic, and when system normally moved, it can cut off and connect the zero load and the load current of circuit and various electric equipments; When system broke down, it and relaying protection cooperated, and energy is the disengagement failure electric current rapidly, to prevent expansion accident scope.Therefore, the quality of primary cut-out work directly has influence on the safe operation of electric power system.The factor that influences the circuit breaker work quality is a lot, wherein the position of contents and assembly structure also have very big influence to the operate as normal of circuit breaker, the static contact seat of conventional circuit breaker is that static contact seat directly links to each other with the terminal block plane with the terminal block assembled construction, this structure is because of the restriction of insulator, make and air-flow is stopped up cut-offfing big short circuit current, circuit breaker can't normally be cut-off, thereby influence the fail safe and the reliability of circuit breaker.
Summary of the invention
The purpose of this utility model provides a kind of avoiding and does not freely cause cut-offfing the new structure of the SF6 circuit breaker fixed contact assembling of bigger short circuit current because of insulator restriction makes the airflow of circuit breaker.
The technical solution adopted in the utility model is: the middle part of described terminal block is provided with a groove, and the rear end of static contact seat is stretched in the groove of terminal block and with terminal block and fixedlyed connected.
In described groove arranged outside cover plate is arranged, cover plate is connected with terminal block by bolt.
The utility model improves the terminal block structure of classic flat-plate shape, make wherein groove of the heavy formation of subordinate, static contact seat is put in the groove and is connected with terminal block, this structure has strengthened the stroke of air-flow, make airflow more unobstructed, can effectively avoid cut-offfing big short circuit current, prevent that circuit breaker from can't normally cut-off, thereby improve the fail safe and the reliability of circuit breaker.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model
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, comprise terminal block 1, the middle part of described terminal block 1 is provided with a groove, this groove can sink to forming at terminal block 1 middle part, and the rear end of static contact seat 2 is put into the groove of terminal block 1 and is bolted to connection with terminal block 1.Arranged outside at described groove in the present embodiment has cover plate 3, and cover plate 3 is connected with terminal block 1 by bolt.
Groove is interior to be connected with terminal block 1 the utility model because the stationary contact headstock is put into, and this structure has strengthened the stroke of air-flow, makes airflow more unobstructed, has effectively avoided cut-offfing big short circuit current, prevents that circuit breaker from can't normally cut-off.
This shows, the utlity model has rational in infrastructurely, make simple installation, equipment operational reliability high.
Claims (2)
1. a SF6 circuit breaker fixed contact assembly structure comprises terminal block, and it is characterized in that: the middle part of described terminal block is provided with a groove, and the rear end of static contact seat is stretched in the groove of terminal block and with terminal block and fixedlyed connected.
2. SF6 circuit breaker fixed contact assembly structure according to claim 1, it is characterized in that: in described groove arranged outside cover plate is arranged, cover plate is connected with terminal block by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202283407U CN201732717U (en) | 2010-06-10 | 2010-06-10 | SF6 circuit breaker static contact assembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202283407U CN201732717U (en) | 2010-06-10 | 2010-06-10 | SF6 circuit breaker static contact assembly structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201732717U true CN201732717U (en) | 2011-02-02 |
Family
ID=43523873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202283407U Expired - Fee Related CN201732717U (en) | 2010-06-10 | 2010-06-10 | SF6 circuit breaker static contact assembly structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201732717U (en) |
-
2010
- 2010-06-10 CN CN2010202283407U patent/CN201732717U/en not_active Expired - Fee Related
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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: 20110202 Termination date: 20140610 |