CN2643466Y - Outdoor high-voltage vacuum circuit breaker with isolation knife - Google Patents
Outdoor high-voltage vacuum circuit breaker with isolation knife Download PDFInfo
- Publication number
- CN2643466Y CN2643466Y CN 03232499 CN03232499U CN2643466Y CN 2643466 Y CN2643466 Y CN 2643466Y CN 03232499 CN03232499 CN 03232499 CN 03232499 U CN03232499 U CN 03232499U CN 2643466 Y CN2643466 Y CN 2643466Y
- Authority
- CN
- China
- Prior art keywords
- isolation knife
- rotating shaft
- circuit breaker
- fixed
- isolation
- 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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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model relates to an outdoor high-voltage vacuum circuit breaker with an isolation knife. A movable contact is installed on the lead-in end of the circuit breaker, and the movable contact and the isolation knife are in contact connection; the other end of the isolation knife is connected with a lead-in connecting plate of a post insulator that is installed on a bracket; the bracket is fixed on a box body that is fixed on the bottom of the circuit breaker; the lower end of the bracket is fixedly provided with a rotating shaft of which the end part is connected with an on-off handle; an on-off spring is installed between the upper part of the bracket and the rotating shaft; an insulated pulling rod is installed between the isolation knife and the rotating shaft; the rotating shaft is also connected with a mis-interlocking preventing device of which the locking head is output from one side of the box body on the bottom of the circuit breaker, so the isolation knife can not be disconnected before the vacuum circuit breaker turns off the switch. The utility model is used for disconnecting a circuit during power circuit examination and repair or failure isolation, and the disconnecting point is obvious and visible. The utility model has the advantages of small volume, convenient installation and reliable operation.
Description
Technical field
The utility model relates to the electric switch technical field, after especially relating in the power circuit outdoor high-voltage vacuum breaker and cutting off electric current, and the electric switchgear of visible isolation fracture.
Background technology
At present domestic outdoor high-voltage vacuum breaker complex structure in the band isolation knife of using, isolation knife all links to each other with the leading-out terminal of vacuum circuit-breaker, makes whole circuit breaker overall dimension very big; And the isolation knife operation can only be carried out in a direction, makes troubles for the installation of entire product; Anti-misoperation interlocking between isolation knife and the circuit breaker is complicated, causes the accident easily.
Summary of the invention
The purpose of this utility model provide a kind of simple in structure, volume is small and exquisite, fool proof interlocking is simple and easy reliable; Isolation knife links to each other with the end of incoming cables of vacuum circuit-breaker, and the outdoor high-voltage vacuum breaker of the novel band isolation knife that can operate in the both sides of circuit breaker.
The technical solution of the utility model is such: a kind of outdoor high-voltage vacuum breaker with isolation knife, by the connection of the outlet terminal block on the circuit breaker electricity is transported to the electricity consumption position; On the end of incoming cables of circuit breaker moving contact is housed, moving contact is connected with the isolation knife contact; The other end of isolation knife is connected with the inlet wire terminal block of rack-mount post insulator; Support is fixed on the casing of circuit breaker bottom; A rotating shaft is fixed in the support lower end, is fixedly connected with a deciliter handle mounting flange at the rotating shaft two ends; A deciliter spring is installed between support top and rotating shaft, and deciliter spring one end is fixed in support top, and the other end is fixed in the rotating shaft; Between isolation knife and rotating shaft insulated tension pole is installed, the insulated tension pole upper end fixes with the isolation knife middle part, and the lower end is fixed in the rotating shaft; Deciliter handle is connected with rotating shaft by flange; Also be connected with anti-mistaken interlocking device in rotating shaft, its tapered end can not disconnect the isolation knife action by the casing one side output of circuit breaker bottom before the vacuum circuit-breaker separating brake.
The beneficial effects of the utility model have following several respects:
1, overhaul or during Fault Isolation, vacuum circuit-breaker carried out separating brake, and then open isolation knife when power circuit, this moment cut-off point in that significantly the position is clearly visible, eliminated the unsafe hidden danger of maintainer.
2, the present product that uses of the volume ratio of whole vacuum circuit-breaker has reduced 1/3rd.
3, isolation knife deciliter handle can be connected with rotating shaft in any side of circuit breaker by flange, therefore all can operate in the circuit breaker both sides, brings convenience to user installation.
4, anti-mistaken interlocking device is simple and easy reliable, makes the operating sequence between vacuum circuit-breaker and the isolation knife give to force to determine, avoids misoperation.
5, isolation knife links to each other with the end of incoming cables of vacuum circuit-breaker, and after the disconnection, circuit breaker is just not charged, has increased fail safe.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the right view of Fig. 1.
Among the figure: 1, moving contact, 2, isolation knife, 3, the inlet wire terminal block, 4, post insulator, 5, insulated tension pole, 6, support, 7, deciliter spring, 8, deciliter handle, 9, circuit breaker, 10, the outlet terminal block, 11, flange, 12, rotating shaft, 13, anti-mistaken interlocking device.
Embodiment
Shown in accompanying drawing 1-2, a kind of outdoor high-voltage vacuum breaker with isolation knife of the present utility model is made up of circuit breaker and isolation knife two parts, connects by the outlet terminal block (10) on the circuit breaker (9) electricity is transported to the electricity consumption position; Moving contact (1) is housed on the end of incoming cables of circuit breaker, and moving contact is connected with isolation knife (2) contact; The other end of isolation knife is connected with the inlet wire terminal block (3) of post insulator (4) on being installed in support (6); Support is fixed on the casing of circuit breaker bottom; A rotating shaft (12) is fixed in the support lower end, is fixedly connected with a deciliter handle mounting flange (11) at the rotating shaft two ends; A deciliter spring (7) is installed between support top and rotating shaft, and deciliter spring one end is fixed in support top, and the other end is fixed in the rotating shaft; Insulated tension pole (5) is installed between isolation knife and rotating shaft, and the insulated tension pole upper end fixes with the isolation knife middle part, and the lower end is fixed in the rotating shaft; Deciliter handle (8) is connected with rotating shaft by flange; Also be connected with anti-mistaken interlocking device (13) in rotating shaft, its tapered end can not disconnect the isolation knife action by the casing one side output of circuit breaker bottom before the vacuum circuit-breaker separating brake.
Claims (2)
1, a kind of outdoor high-voltage vacuum breaker with isolation knife, form by circuit breaker and isolation knife two parts, outlet terminal block (10) on its circuit breaker (9) connects the electricity consumption position, it is characterized in that: moving contact (1) is housed on the end of incoming cables of circuit breaker, and moving contact is connected with isolation knife (2) contact; The other end of isolation knife is connected with the inlet wire terminal block (3) of post insulator (4) on being installed in support (6); Support is fixed on the casing of circuit breaker bottom; A rotating shaft (12) is fixed in the support lower end, and roller end is fixedly connected with a deciliter handle (8); A deciliter spring (7) is installed between support top and rotating shaft, and deciliter spring one end is fixed in support top, and the other end is fixed in the rotating shaft; Insulated tension pole (5) is installed between isolation knife and rotating shaft, and the insulated tension pole upper end fixes with the isolation knife middle part, and the lower end is fixed in the rotating shaft; Also be connected with anti-mistaken interlocking device (13) in rotating shaft, its tapered end is located at casing one side of circuit breaker bottom.
2, a kind of outdoor high-voltage vacuum breaker with isolation knife according to claim 1 is characterized in that: said deciliter handle (8) fixed with being connected by flange (11) of rotating shaft (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232499 CN2643466Y (en) | 2003-06-20 | 2003-06-20 | Outdoor high-voltage vacuum circuit breaker with isolation knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232499 CN2643466Y (en) | 2003-06-20 | 2003-06-20 | Outdoor high-voltage vacuum circuit breaker with isolation knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2643466Y true CN2643466Y (en) | 2004-09-22 |
Family
ID=34291473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03232499 Expired - Fee Related CN2643466Y (en) | 2003-06-20 | 2003-06-20 | Outdoor high-voltage vacuum circuit breaker with isolation knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2643466Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878224A (en) * | 2017-05-09 | 2018-11-23 | 人民电器集团上海有限公司 | A kind of band isolation circuit breakers |
-
2003
- 2003-06-20 CN CN 03232499 patent/CN2643466Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878224A (en) * | 2017-05-09 | 2018-11-23 | 人民电器集团上海有限公司 | A kind of band isolation circuit breakers |
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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: 20040922 Termination date: 20110620 |