CN2901563Y - Breaker protector - Google Patents
Breaker protector Download PDFInfo
- Publication number
- CN2901563Y CN2901563Y CN 200620078928 CN200620078928U CN2901563Y CN 2901563 Y CN2901563 Y CN 2901563Y CN 200620078928 CN200620078928 CN 200620078928 CN 200620078928 U CN200620078928 U CN 200620078928U CN 2901563 Y CN2901563 Y CN 2901563Y
- Authority
- CN
- China
- Prior art keywords
- gate valve
- protective sleeve
- circuit breaker
- valve resistance
- breaker
- 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
This utility model is a circuit breaker comprising a brake valve electric resistance (1) and a protecting jacket (2) provided in the protecting jacket (2), which solves the technical problem of common technologies that the circuit breaker may restrike after being disconnected.
Description
One, technical field
The utility model relates to a kind of breaker protection device.
Two, background technology
In power industry, in 35KV and the following electric power system, be prone to the more serious problem of overvoltage that the vacuum circuit-breaker rate of failure is higher and when operation produces, its reason mainly is that circuit breaker is in interrupting process, when it cut-offs electric arc repeatedly the time, can produce the more and more higher overvoltage of restriking, thus the insulation that jeopardizes electric equipments such as transformer, motor, capacitor, reactor.
For addressing this problem, conventional way is the method in the inside and outside employing of arc control device " reinforced insulation ".As: improve the circuit breaker just-off speed, the measures such as vacuum degree in the arc control device of raising circuit breaker.Yet, too fast too high when recovery voltage, when the insulation of arc control device internal cause is strengthened no longer restriking, but can bring new problem.That is: outside the arc control device of circuit breaker edge flashing might take place, strengthen creepage distance for addressing this problem measures such as taking outsourcing silicon rubber vulcanization umbrella again on the circuit breaker surface.But practice shows, to this, adopts the method for " reinforced insulation " not prove effective fully inside and outside arc control device.
At present, also there is not the special protector that circuit breaker is protected.
Three, utility model content
The technical problem that the utility model is easily restriked in interrupting process for the circuit breaker that solves in the background technology, and a kind of restrike breaker protection device of rate of circuit breaker that reduces is provided.
Technical solution of the present utility model is: the utility model is a kind of breaker protection device, and its special character is: this breaker protection device comprises gate valve resistance 1 and protective sleeve 2, gate valve resistance 1 stacked being arranged in the protective sleeve 2.
Above-mentioned protective sleeve 2 two ends are provided with screw rod 4.
Above-mentioned protective sleeve 2 outer walls 3 are waveform.
Above-mentioned gate valve resistance 1 is nonmetal non-linear gate valve resistance.
Review the reason of restriking when circuit breaker cut-offs; mainly be that the withstand voltage level of arc control device dynamic/static contact when just having separated is lower than the recovery voltage between two contacts; therefore the utility model looks for another way; set about from recovery voltage between the reduction contact of breaker; the protector that constitutes by one group of gate valve resistance in the parallel connection of contact two ends; not conducting just often; during the recovery voltage superelevation; conducting rapidly; thereby can be the contact bypass; the potential difference at contact two ends is reduced; play the effect of earial drainage, greatly reduce the flashover rate outside restrike in the chamber of circuit breaker arc control device when cut-offfing rate and the chamber, promptly greatly reduce the overvoltage of restriking; not only protect circuit breaker, also protected other electric equipments.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model.
Five, embodiment
Referring to Fig. 1; the utility model comprises gate valve resistance 1 and protective sleeve 2; gate valve resistance 1 is a plurality of; stacked being arranged in the protective sleeve 2; the upper surface of the gate valve resistance of the superiors and the lower surface of undermost gate valve resistance and protective sleeve about in the of 2 two inner faces be close to; protective sleeve 2 two ends are provided with screw rod 4, and protective sleeve 2 outer walls 3 are waveform, and gate valve resistance 1 is good with nonmetal non-linear gate valve resistance.
During use, hard lead directly is fixed on the screw rod 4 at protective sleeve 2 two ends, gets final product with the two ends of circuit breaker are in parallel by hard lead then, easy for installation.
Claims (4)
1, a kind of breaker protection device is characterized in that: this breaker protection device comprises gate valve resistance (1) and protective sleeve (2), and described gate valve resistance (1) is stacked to be arranged in the protective sleeve (2).
2, breaker protection device according to claim 1 is characterized in that: described protective sleeve (2) two ends are provided with screw rod (4).
3, breaker protection device according to claim 2 is characterized in that: described protective sleeve (2) outer wall (3) is a waveform.
4, according to claim 1 or 2 or 3 described breaker protection devices, it is characterized in that: described gate valve resistance (1) is nonmetal non-linear gate valve resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620078928 CN2901563Y (en) | 2006-05-08 | 2006-05-08 | Breaker protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620078928 CN2901563Y (en) | 2006-05-08 | 2006-05-08 | Breaker protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2901563Y true CN2901563Y (en) | 2007-05-16 |
Family
ID=38085727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620078928 Expired - Fee Related CN2901563Y (en) | 2006-05-08 | 2006-05-08 | Breaker protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2901563Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578843A (en) * | 2013-11-08 | 2014-02-12 | 西安盟创电器有限公司 | Non-reignition disconnector |
| CN105990793A (en) * | 2015-02-16 | 2016-10-05 | 西门子公司 | Electrical apparatus comprising adsorbent |
-
2006
- 2006-05-08 CN CN 200620078928 patent/CN2901563Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578843A (en) * | 2013-11-08 | 2014-02-12 | 西安盟创电器有限公司 | Non-reignition disconnector |
| CN105990793A (en) * | 2015-02-16 | 2016-10-05 | 西门子公司 | Electrical apparatus comprising adsorbent |
| CN105990793B (en) * | 2015-02-16 | 2018-03-27 | 西门子公司 | Electric device comprising adsorbent |
| US10014670B2 (en) | 2015-02-16 | 2018-07-03 | Siemens Aktiengesellschaft | Electrical apparatus having a cylindric cover containing an adsorbent |
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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: 20070516 Termination date: 20150508 |
|
| EXPY | Termination of patent right or utility model |