CN203787345U - Self energy arc-blasting circuit breaker - Google Patents
Self energy arc-blasting circuit breaker Download PDFInfo
- Publication number
- CN203787345U CN203787345U CN201420174023.XU CN201420174023U CN203787345U CN 203787345 U CN203787345 U CN 203787345U CN 201420174023 U CN201420174023 U CN 201420174023U CN 203787345 U CN203787345 U CN 203787345U
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- CN
- China
- Prior art keywords
- arc
- contact
- circuit breaker
- moving contacts
- self energy
- 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
Links
- 238000005422 blasting Methods 0.000 title abstract 3
- 241000237983 Trochidae Species 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 abstract 3
- 239000007921 spray Substances 0.000 abstract 2
- 238000010891 electric arc Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000009413 insulation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 230000001914 calming effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- Circuit Breakers (AREA)
Abstract
The utility model discloses a self energy arc-blasting circuit breaker. An arc static contact is arranged at a central position of the upper top shell inside an outer shell; main static spray nozzles are symmetrically arranged on a connecting column provided with the arc static contact, insulating spray nozzles are arranged on arc moving contacts, and two of the arc moving contacts are symmetrically arranged on a bottom shell of the outer shell; and two main moving contacts are symmetrically arranged on the arc moving contacts, a gas storage chamber is formed by the main moving contacts and the arc moving contacts which are connected, the upper parts of sliding contacts are connected with the main moving contacts, the lower parts are connected with a fixed piston, lower valves are arranged on the fixed piston, and upper valves are arranged on the main moving contacts. The self energy arc-blasting circuit breaker utilizes the arc energy to create a pressure different required by arc extinguishing, so that the cross area of the fixed piston is much smaller than that of a compressed-air type one, the structure of the circuit breaker is simplified, the operating power of a corresponding operating mechanism can be reduced, and even the operating power of some is only 20% of a compressed-air type circuit breaker.
Description
Technical field
The utility model relates to breaker technical field, is specially a kind of self energy arc blow-out circuit breaker.
Background technology
Circuit breaker is as circuit element common in circuit, it is very extensive using, the operating work that present circuit breaker needs in the process of operation is larger, and volume is also larger, this self energy arc blow-out circuit breaker, it utilizes arc energy to set up the required pressure differential of arc extinguishing, and therefore the sectional area ratio air pressing type of fixed piston is much smaller.It not only makes the designs simplification of circuit breaker but also the operating work of corresponding operating mechanism also can reduce, and what have even only has 20% of puffer circuit breaker, makes the circuit breaker of higher level, as the circuit breaker of 220kV, and available spring operating mechanism.For this reason, we propose a kind of self energy arc blow-out circuit breaker.
Utility model content
The purpose of this utility model is to provide a kind of self energy arc blow-out circuit breaker, to solve the problem proposing in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme: a kind of self energy arc blow-out circuit breaker, comprise arc fixed contact, insulating head, main quiet shower nozzle, arc moving contact, active contact, air storage chamber, sliding contact, upper valve, auxiliary air storage chamber, fixed piston, lower valve and shell, described arc fixed contact is positioned on enclosure upper top shell centre position; The quiet shower nozzle symmetry of described master is arranged on the joint pin of arc fixed contact, and described insulating head is arranged on arc moving contact, and described arc moving contact has two symmetries to be arranged on the drain pan of shell; Described active contact has two symmetries to be arranged on arc moving contact, described active contact and arc moving contact are connected to form air storage chamber, and described sliding contact top is connected with active contact, and bottom is connected with fixed piston, described lower valve is positioned on fixed piston, and described upper valve is positioned on active contact.
Preferably, described enclosure upper top shell is provided with the joint pin of arc fixed contact.
Preferably, described arc moving contact is structure movable up and down.
Preferably, on described active contact and fixed piston, be all welded with two horizontal valve installation posts.
Operation principle: the interrupting process of self energy arc blow-out circuit breaker as Figure 1-4.In the time cut-offfing large electric current as shown in Figure 4, after main contact separates, arc moving contact, main quiet shower nozzle separately produce electric arc subsequently, gas in arc energy heating gas dome raises pressure, set up the required pressure of arc extinguishing, high-pressure gas in air storage chamber blows to electric arc through insulation spout, and electric arc is extinguished in the time of current over-zero.Go up subsequently valve open, discharge unnecessary gas.In the time cut-offfing little electric current (as reactor and nonloaded line), because arc energy is little, rely on arc energy to be difficult to set up the required pressure of arc extinguishing, thereby must manage the air blowing effect that provides additional.Auxiliary air storage chamber effect moves downward generation by gas dome.In Fig. 3, rely on the effect of calming the anger of fixed piston that the pressure in auxiliary air storage chamber is raise, open lower valve, allow gas blow to electric arc by gas dome through insulation spout.
Compared with prior art, the beneficial effects of the utility model are: this self energy arc blow-out circuit breaker, it utilizes arc energy to set up the required pressure differential of arc extinguishing, therefore the sectional area ratio air pressing type of fixed piston is much smaller, it not only makes the designs simplification of circuit breaker but also the operating work of corresponding operating mechanism also can reduce, and what have even only has 20% of puffer circuit breaker.
Brief description of the drawings
Fig. 1 is the utility model combined floodgate structural representation;
Fig. 2 is the large electric current structural representation that cut-offs of the present utility model;
Fig. 3 is the little electric current structural representation that cut-offs of the present utility model;
Fig. 4 is separating brake structural representation of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1-4, in the utility model embodiment, a kind of self energy arc blow-out circuit breaker, comprise arc fixed contact 1, insulating head 2, main quiet shower nozzle 3, arc moving contact 4, active contact 5, air storage chamber 6, sliding contact 7, upper valve 8, auxiliary air storage chamber 9, fixed piston 10, lower valve 11 and shell 12, described arc fixed contact 1 is positioned on the inner upper top shell of shell 12 centre position, and the inner upper top shell of described shell 12 is provided with the joint pin of arc fixed contact 1; Quiet shower nozzle 3 symmetries of described master are arranged on the joint pin of arc fixed contact 1, and described insulating head 2 is arranged on arc moving contact 4, and described arc moving contact 4 has two symmetries to be arranged on the drain pan of shell 12, and described arc moving contact 4 is structure movable up and down; Described active contact 5 has two symmetries to be arranged on arc moving contact 4, described active contact 5 is connected to form air storage chamber 6 with arc moving contact 4, described sliding contact 7 tops are connected with active contact 5, bottom is connected with fixed piston 10, described lower valve 11 is positioned on fixed piston 10, described upper valve 8 is positioned on active contact 5, is all welded with two horizontal valve installation posts on described active contact 5 and fixed piston 10.
Operation principle: the interrupting process of self energy arc blow-out circuit breaker as Figure 1-4.In the time cut-offfing large electric current as shown in Figure 4, after main contact 5 separates, arc moving contact 4, main quiet shower nozzle 3 separately produce electric arc subsequently, gas in arc energy heating gas dome raises pressure, set up the required pressure of arc extinguishing, high-pressure gas in air storage chamber 6 blows to electric arc through insulation spout, and electric arc is extinguished in the time of current over-zero.Go up subsequently valve 8 and lower valve 11 is opened, discharge unnecessary gas.In the time cut-offfing little electric current (as reactor and nonloaded line), because arc energy is little, rely on arc energy to be difficult to set up the required pressure of arc extinguishing, thereby must manage the air blowing effect that provides additional.Auxiliary air storage chamber 9 effects move downward generation by gas dome.In Fig. 3, rely on the effect of calming the anger of fixed piston that the pressure in auxiliary air storage chamber 9 is raise, open lower valve 11, allow gas blow to electric arc by gas dome through insulation spout.
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned example embodiment, and in the situation that not deviating from spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, is therefore intended to all changes that drop in the implication and the scope that are equal to important document of claim to include in the utility model.Any Reference numeral in claim should be considered as limiting related claim.
In addition, be to be understood that, although this specification is described according to execution mode, but be not that each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other execution modes that it will be appreciated by those skilled in the art that.
Claims (4)
1. a self energy arc blow-out circuit breaker, comprise arc fixed contact, insulating head, main quiet shower nozzle, arc moving contact, active contact, air storage chamber, sliding contact, upper valve, auxiliary air storage chamber, fixed piston, lower valve and shell, it is characterized in that: described arc fixed contact is positioned on enclosure upper top shell centre position; The quiet shower nozzle symmetry of described master is arranged on the joint pin of arc fixed contact, and described insulating head is arranged on arc moving contact, and described arc moving contact has two symmetries to be arranged on the drain pan of shell; Described active contact has two symmetries to be arranged on arc moving contact, described active contact and arc moving contact are connected to form air storage chamber, and described sliding contact top is connected with active contact, and bottom is connected with fixed piston, described lower valve is positioned on fixed piston, and described upper valve is positioned on active contact.
2. a kind of self energy arc blow-out circuit breaker according to claim 1, is characterized in that: described enclosure upper top shell is provided with the joint pin of arc fixed contact.
3. a kind of self energy arc blow-out circuit breaker according to claim 1, is characterized in that: described arc moving contact is structure movable up and down.
4. a kind of self energy arc blow-out circuit breaker according to claim 1, is characterized in that: on described active contact and fixed piston, be all welded with two horizontal valve installation posts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420174023.XU CN203787345U (en) | 2014-04-03 | 2014-04-03 | Self energy arc-blasting circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420174023.XU CN203787345U (en) | 2014-04-03 | 2014-04-03 | Self energy arc-blasting circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203787345U true CN203787345U (en) | 2014-08-20 |
Family
ID=51323504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420174023.XU Expired - Fee Related CN203787345U (en) | 2014-04-03 | 2014-04-03 | Self energy arc-blasting circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203787345U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086152A (en) * | 2017-05-10 | 2017-08-22 | 国家电网公司 | Conductive seat and arc-chutes and primary cut-out |
| CN107146737A (en) * | 2017-05-10 | 2017-09-08 | 国家电网公司 | A kind of arc-chutes moving contact and arc-chutes and primary cut-out |
| CN109767950A (en) * | 2017-11-09 | 2019-05-17 | 河南平芝高压开关有限公司 | A kind of self-energy arc-extinguishing chamber and the breaker using the arc-chutes |
| CN111668061A (en) * | 2019-03-05 | 2020-09-15 | 国家电网有限公司 | Explosion chamber disk seat and explosion chamber |
| CN114758921A (en) * | 2021-12-23 | 2022-07-15 | 平高集团有限公司 | Arc extinguish chamber and circuit breaker using same |
-
2014
- 2014-04-03 CN CN201420174023.XU patent/CN203787345U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086152A (en) * | 2017-05-10 | 2017-08-22 | 国家电网公司 | Conductive seat and arc-chutes and primary cut-out |
| CN107146737A (en) * | 2017-05-10 | 2017-09-08 | 国家电网公司 | A kind of arc-chutes moving contact and arc-chutes and primary cut-out |
| CN107086152B (en) * | 2017-05-10 | 2019-01-22 | 国家电网公司 | Conductive seat and arc-chutes and high-voltage circuitbreaker |
| CN107146737B (en) * | 2017-05-10 | 2019-03-12 | 国家电网公司 | A kind of arc-chutes moving contact and arc-chutes and high-voltage circuitbreaker |
| CN109767950A (en) * | 2017-11-09 | 2019-05-17 | 河南平芝高压开关有限公司 | A kind of self-energy arc-extinguishing chamber and the breaker using the arc-chutes |
| CN109767950B (en) * | 2017-11-09 | 2020-11-06 | 河南平芝高压开关有限公司 | Self-energy arc extinguish chamber and circuit breaker using same |
| CN111668061A (en) * | 2019-03-05 | 2020-09-15 | 国家电网有限公司 | Explosion chamber disk seat and explosion chamber |
| CN114758921A (en) * | 2021-12-23 | 2022-07-15 | 平高集团有限公司 | Arc extinguish chamber and circuit breaker using same |
| CN114758921B (en) * | 2021-12-23 | 2024-03-26 | 平高集团有限公司 | Explosion chamber and use circuit breaker of this explosion chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20150403 |
|
| EXPY | Termination of patent right or utility model |