CN201374264Y - Combination appliance of isolation switch and vacuum circuit breaker - Google Patents
Combination appliance of isolation switch and vacuum circuit breaker Download PDFInfo
- Publication number
- CN201374264Y CN201374264Y CN200920035512U CN200920035512U CN201374264Y CN 201374264 Y CN201374264 Y CN 201374264Y CN 200920035512 U CN200920035512 U CN 200920035512U CN 200920035512 U CN200920035512 U CN 200920035512U CN 201374264 Y CN201374264 Y CN 201374264Y
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- CN
- China
- Prior art keywords
- vacuum circuit
- breaker
- circuit breaker
- isolating switch
- isolation switch
- 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 - Lifetime
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Abstract
The utility model discloses a combination appliance of an isolation switch and a vacuum circuit breaker. The combination appliance comprises an isolation switch part, a vacuum circuit breaker part, a grounding part, an operation locking part and a frame, wherein the isolation switch part is arranged on one side of the vacuum circuit breaker part; a main contact is arranged on the isolation switch part for connecting the vacuum circuit breaker; the grounding part is arranged on the other side of the vacuum circuit breaker part; the isolation switch part, the vacuum circuit breaker part and the grounding part are disposed in the frame; and the operation locking part for controlling the isolation switch part, the vacuum circuit breaker part and the grounding part is arranged on the frame. The combination appliance can achieve the functions of the isolation switch and the vacuum circuit breaker by effectively combining the circuit breaker and the isolation switch, and has the advantages of simple structure, small size and low investment cost.
Description
Technical field
The utility model relates to a kind of electrical equipment, and is specifically a kind of with isolating switch, earthed switch and vacuum circuit-breaker function combinations isolating switch and vacuum circuit-breaker combined electrical apparatus together.
Background technology
The main effect of isolating switch (disconnecting link) is to isolate current/voltage when equipment or line maintenance, to guarantee safety.It can not disconnect load current and short circuit current, should be used with circuit breaker.Divide after when having a power failure, should dividing circuit breaker earlier and keep apart pass, splice grafting ground switch again.Divide earlier the ground connection switch when sending electricity, close circuit breaker after closing isolating switch.If misoperation will cause device damage and loss of life or personal injury.
Under protective relaying device control, automatically faulty equipment and circuit are disconnected when circuit breaker is used for closing with the open circuit fault under the electric power system normal operation, the automatic reclosing function can also be arranged.In China, what the use of the above transformer station of 10kV was more is air circuit and sulfur hexafluoride breaker.
Circuit breaker is divided into primary cut-out by its scope of application, and low-voltage circuit breaker, generally with 3KV and the above high pressure that is called.
Circuit breaker (or claiming switch) is the main electric control appliance of electric substation, 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.
Isolating switch is to use maximum a kind of electrical equipment in the high-voltage switch electric appliance, and the operation principle of itself and relatively simple for structure, but because use amount is big, functional reliability requires high is all bigger to the influence of design, foundation and the safe operation of electric substation, power plant.
Because the main distinction of circuit breaker and isolating switch is that circuit breaker has the ability of arc extinguishing, and isolating switch does not have.Thereby two kinds of equipment need be used, and its operating sequence is to close a floodgate: divide the ground connection switch earlier, close isolating switch, close circuit breaker then; Separating brake: divide circuit breaker earlier, the back is divided and is kept apart pass, splice grafting ground switch.
At present, isolating switch and vacuum circuit-breaker branch are arranged, and in use, need equipment many, complex structure, and it is big to take up room; And cost of investment height.
Summary of the invention
In order to overcome the problem that prior art exists, the purpose of this utility model provides a kind of isolating switch and vacuum circuit-breaker combined electrical apparatus.This isolating switch and vacuum circuit-breaker combined electrical apparatus are combined circuit breaker and isolating switch effectively, have realized the function of isolating switch, earthed switch and vacuum circuit-breaker, and device structure is simple, and it is little to take up room; And cost of investment is low.
The purpose of this utility model is achieved through the following technical solutions:
A kind of isolating switch and vacuum circuit-breaker combined electrical apparatus is characterized in that: it comprises isolating switch part, vacuum circuit-breaker part, grounded part, operation locking part and frame, and isolating switch portion is arranged on a side of vacuum circuit-breaker portion; In isolating switch portion, be provided with and be used for the main contacts that is connected with vacuum circuit-breaker portion; Grounding parts is arranged on the opposite side of vacuum circuit-breaker portion; Isolating switch portion, vacuum circuit-breaker portion and grounding parts all are arranged in the frame; On frame, be provided with the operation locking part that is used for controlling isolating switch portion, vacuum circuit-breaker portion and grounding parts action.
In the utility model, main contacts is arranged on the side of isolating switch portion, and isolating switch portion and vacuum circuit-breaker portion are closed convenient like this.
Compared with prior art, the utility model is combined circuit breaker and isolating switch effectively, has realized the function of isolating switch and vacuum circuit-breaker, has formed a kind of multi-functional combined electrical apparatus, and not only device structure is simple, and it is little to take up room; And cost of investment is low.
Figure of description
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1.
Embodiment
A kind of isolating switch described in the utility model and vacuum circuit-breaker combined electrical apparatus are seen Fig. 1 and Fig. 2, comprise isolating switch portion 1, vacuum circuit-breaker portion 2, grounding parts 3, operation locking part 4 and frame 5.Isolating switch portion 1 is arranged on a side of vacuum circuit-breaker portion 2; In isolating switch portion 1, be provided with and be used for the main contacts 11 that is connected with vacuum circuit-breaker portion 2; In order to make isolating switch portion 1 closed convenient with vacuum circuit-breaker portion 2, main contacts 11 is arranged on the side of isolating switch portion 1.Grounding parts 3 is arranged on the opposite side of vacuum circuit-breaker portion 2; Isolating switch portion 1, vacuum circuit-breaker portion 2 and grounding parts 3 all are arranged in the frame 5.On frame 5, be provided with the operation locking part 4 that is used for controlling isolating switch portion 1, vacuum circuit-breaker portion 2 and grounding parts 3 actions.Can manually close a floodgate and sub-switching operation by operation locking part 4.
The utility model is combined circuit breaker and isolating switch effectively, has realized the function of isolating switch and vacuum circuit-breaker, has formed a kind of multi-functional combined electrical apparatus, and not only device structure is simple, and it is little to take up room; And cost of investment is low.
Claims (2)
1, a kind of isolating switch and vacuum circuit-breaker combined electrical apparatus, it is characterized in that: it comprises isolating switch portion (1), vacuum circuit-breaker portion (2), grounding parts (3), operation locking part (4) and frame (5), and isolating switch portion (1) is arranged on a side of vacuum circuit-breaker portion (2); In isolating switch portion (1), be provided with and be used for the main contacts (11) that is connected with vacuum circuit-breaker portion (2); Grounding parts (3) is arranged on the opposite side of vacuum circuit-breaker portion (2); Isolating switch portion (1), vacuum circuit-breaker portion (2) and grounding parts (3) all are arranged in the frame (5); On frame (5), be provided with the operation locking part (4) that is used for controlling isolating switch portion (1), vacuum circuit-breaker portion (2) and grounding parts (3) action.
2, isolating switch according to claim 1 and vacuum circuit-breaker combined electrical apparatus is characterized in that: main contacts (11) is arranged on the side of isolating switch portion (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920035512U CN201374264Y (en) | 2009-03-12 | 2009-03-12 | Combination appliance of isolation switch and vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920035512U CN201374264Y (en) | 2009-03-12 | 2009-03-12 | Combination appliance of isolation switch and vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201374264Y true CN201374264Y (en) | 2009-12-30 |
Family
ID=41500346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920035512U Expired - Lifetime CN201374264Y (en) | 2009-03-12 | 2009-03-12 | Combination appliance of isolation switch and vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201374264Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311812A (en) * | 2013-06-28 | 2013-09-18 | 浙江天润电力科技有限公司 | Combined electrical apparatus with isolation switch, vacuum breaker and earthing switch |
-
2009
- 2009-03-12 CN CN200920035512U patent/CN201374264Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311812A (en) * | 2013-06-28 | 2013-09-18 | 浙江天润电力科技有限公司 | Combined electrical apparatus with isolation switch, vacuum breaker and earthing switch |
| CN103311812B (en) * | 2013-06-28 | 2015-07-15 | 浙江天润电力科技有限公司 | Combined electrical apparatus with isolation switch, vacuum breaker and earthing switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091230 |