CN2197742Y - Anti-arc spraying breaker - Google Patents
Anti-arc spraying breaker Download PDFInfo
- Publication number
- CN2197742Y CN2197742Y CN 94224942 CN94224942U CN2197742Y CN 2197742 Y CN2197742 Y CN 2197742Y CN 94224942 CN94224942 CN 94224942 CN 94224942 U CN94224942 U CN 94224942U CN 2197742 Y CN2197742 Y CN 2197742Y
- Authority
- CN
- China
- Prior art keywords
- arc
- passage
- breaker
- spraying
- arcing
- 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
- 238000005507 spraying Methods 0.000 title abstract description 7
- 239000007921 spray Substances 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 241000282693 Cercopithecidae Species 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000011819 refractory material Substances 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000004079 fireproofing Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000002893 slag Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 241001185697 Fenestella Species 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
Images
Landscapes
- Circuit Breakers (AREA)
Abstract
The utility model relates to an anti-arc spraying breaker, which belongs to the improvement of an air breaker with plastic outer casing. A blocking arc passage is arranged at the front of the arc extinguishing chamber of a breaker. The right front of the passage is a closed shape. The bottom of the passage is provided with a dreg spraying port. The inner of the passage is provided with multilayer filtering nets or is full of arc filtering bodies which is composed of granular fireproofing material. The utility model can eliminate an arc pressure which the arc extinguishing chamber sprays, blocks spraying dreg which the arc extinguishing chamber sprays, conduct residual spraying dreg to the leading-in end of the phase, avoid the distribution of arc light being in a short circuit and prevent arc from spraying to the outside of the breaker. The utility model provides the convenience of the volume of a distribution complete machine shrinking and cost lowering for users.
Description
The utility model belongs to the improvement of plastic casing formula lv air breaker arc-control device.
DZ serial plastic shell type circuit breaker volume is little, in light weight, and the breaking capacity height is multiple functional, and uses safer.Owing to be closed shell, so protection scheme and mode of operation are also less.But this circuit breaker exists arcing to escape problem, just the arcing that in use produces has reduced the distance of arcing through the effect of arc control device grid sheet, but arcing still can be by the fenestella in spray arc chamber the place ahead, clearly stipulate flashover distance 200mm in the outer certain distance product standard of ejection housing, with plan safety.Like this producer that produces drawer-type switch cabinet and other distribution complete machine is brought suitable inconvenience, must leave enough spaces, could guarantee that circuit breaker normally moves, otherwise will cause arc short-circuit in spray arc direction.So just increased the volume of complete machine, made internal structure not compact, all made troubles for production and user.
The purpose of this utility model is to provide a kind of circuit breaker to prevent the outer spray apparatus of arcing, the arcing that produces when making each contact disjunction is handled through this device behind the arc control device arc extinguishing again, slows down its pressure, hold back metal spray slag wherein, and guide the electric arc of remnants into this utmost point phase end of incoming cables.Arcing is no longer sprayed to outside the circuit breaker, avoid arc short-circuit, but switch cubicle and other distribution complete machine reduced volume make the internal structure compactness, bring convenience to the user.
The utility model circuit breaker prevents that the outer spray apparatus of arcing is achieved in that the place ahead at each arc control device, block the arc passage along the setting of arcing emission direction, the dead ahead of passage is a closed, have towards the blowing on the monkey of this phase inlet wire gusset piece in channel bottom, block the metallic sieve multilayer vertical placed side by side in the arc passage with the arcing direction, or filler particles shape refractory material (as quartz sand, haydite), to constitute arc filtration body.
The arcing that produces during the circuit breaker disjunction enters arc control device, and through the effect of grid sheet, what spray outside arc control device is the gas that contains metal spray slag and steam, it is a kind of conducting medium, often cause short trouble alternate and over the ground, make the upper level circuit breaker trip, produce wider power outage.Be provided with on the circuit breaker originally prevent the outer spray apparatus of arcing after, by the processing of the arcing of arc control device ejections through arc filtration body, slowed down expulsion pressure, stopped a large amount of metals spray slags in the electric arc, arc filtration body has the effect that absorbs and cool off arc energy, has just played the function of eliminating electric action.The dead ahead of blocking the arc passage is closed, its bottom is provided with blowing on the monkey, this phase inlet wire gusset piece that remaining faint electric arc guiding its underpart can be faced, and each alternate isolation, thereby can avoid because of cause alternate of arc light medium of conduction and short trouble over the ground, unlikely upper level circuit breaker trip, and produce wider power outage.Use has the circuit breaker of this device, does not have outside the arcing ejection circuit breaker, and the user can make the machine product structure compact more, and more reasonable machine volume, the reduction product cost of having reduced of layout also removed the quality problems that cause the accident and form because of the spray arc simultaneously.
Be described further below in conjunction with accompanying drawing
Fig. 1 prevents the structural representation of the outer spray apparatus of arcing for this circuit breaker
As shown in the figure, block arc passage 1 in the place ahead of arc control device 3 setting, the dead ahead of passage has front baffle board 6 to make its front end be closed.The bottom of passage is provided with blowing on the monkey 4, because each arc control device is in the top of each phase inlet wire gusset piece, the position of this blowing on the monkey also is in the top of every inlet wire.Place the arc filtration body 2 that constitutes by multilayer screen cloth or granular materials in the passage, can establish wire netting 5 at slag-drip opening and prevent that granular materials from dropping out.Arrow is represented the arcing injection direction among the figure, arcing enters and blocks the arc passage, weakened by the arc filtration body actuating pressure, most of spray slag is trapped, because there is front baffle board in the place ahead of arcing, remaining faint arcing can not continue to spray forward, be forced to turn to the blowing on the monkey of below, drop down onto the end of incoming cables of this phase place, although ejecta is a conducting medium, also unlikely formation short circuit.
Claims (1)
1, circuit breaker prevents the outer spray apparatus of arcing, it is characterized in that the place ahead at each arc control device, block the arc passage along the setting of arcing emission direction, the dead ahead of passage is a closed, have towards the blowing on the monkey of this phase inlet wire gusset piece in channel bottom, block the metallic sieve multilayer vertical placed side by side in the arc passage with the arcing direction, or filler particles shape refractory material, to constitute arc filtration body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94224942 CN2197742Y (en) | 1994-08-17 | 1994-08-17 | Anti-arc spraying breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94224942 CN2197742Y (en) | 1994-08-17 | 1994-08-17 | Anti-arc spraying breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2197742Y true CN2197742Y (en) | 1995-05-17 |
Family
ID=33838229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94224942 Expired - Fee Related CN2197742Y (en) | 1994-08-17 | 1994-08-17 | Anti-arc spraying breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2197742Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881536A (en) * | 2012-10-18 | 2013-01-16 | 浙江天正电气股份有限公司 | Conveniently detached arc-extinguishing system of moulded case circuit breaker |
| CN104392858A (en) * | 2014-11-28 | 2015-03-04 | 德力西电气有限公司 | Arc extinguish chamber deionization device and circuit breaker arc extinguish chamber with same |
-
1994
- 1994-08-17 CN CN 94224942 patent/CN2197742Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881536A (en) * | 2012-10-18 | 2013-01-16 | 浙江天正电气股份有限公司 | Conveniently detached arc-extinguishing system of moulded case circuit breaker |
| CN102881536B (en) * | 2012-10-18 | 2014-10-15 | 浙江天正电气股份有限公司 | Conveniently detached arc-extinguishing system of moulded case circuit breaker |
| CN104392858A (en) * | 2014-11-28 | 2015-03-04 | 德力西电气有限公司 | Arc extinguish chamber deionization device and circuit breaker arc extinguish chamber with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |