CN2412286Y - Arc-suppressing chamber combined nozzle of sulfur hexafluoride breaker - Google Patents
Arc-suppressing chamber combined nozzle of sulfur hexafluoride breaker Download PDFInfo
- Publication number
- CN2412286Y CN2412286Y CN 99258652 CN99258652U CN2412286Y CN 2412286 Y CN2412286 Y CN 2412286Y CN 99258652 CN99258652 CN 99258652 CN 99258652 U CN99258652 U CN 99258652U CN 2412286 Y CN2412286 Y CN 2412286Y
- Authority
- CN
- China
- Prior art keywords
- arc
- spout
- nozzle
- tight ring
- performance
- 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
The utility model provides a combined nozzle of an SF6 circuit breaker arc chute. A base body of a nozzle is made of polytetrafluoetylene or polytetrafluoetylene filling materials and other materials. The utility model is characterized in that arc-proof rings made of arc-proof materials are respectively embedded in throats of an upper nozzle and a lower nozzle. The arc-proof rings are additionally arranged on the base body of the nozzle, and the arc-proof burning performance of the nozzle can be improved. Thereby, the electrical durability, the breaking arc extinguishing performance and integral technical performance of products can be improved.
Description
The utility model relates to the electric switch field, particularly a kind of SF 6 arc-extinguishing chamber of circuit breaker combined type spout.
Usually in the middle pressure more than 12KV, the high-voltage alternating sulfur hexafluoride breaker, be extensive use of self extinguishing type or air pressing type gas blast arc-quenching, electric arc produces the plasma column of high temperature at spout, produce strong sulphur hexafluoride air-blowing by self energy or air pressing type, plasma high-temperature gas at the spout place with arc column blows away, and extinguishes when forcing the arc current zero passage.This shows that spout is the critical component of extinguish arcs.Spout will have good insulation performance performance, mechanical performance and anti-electrical arc erosion performance, generally by pure polytetrafluoroethylene or poly-tetrafluoro is filled or other material is made.In existing spout, the poor-performing of anti-the electrical arc erosion, when high-current on-off test and electrical endurance test, the spout throat diameter seriously enlarges owing to scaling loss, thereby influences the break performance of product.
The purpose of this utility model provides one and can effectively improve the anti-electrical arc erosion performance of spout, thus improve product electric life, cut-off the SF 6 arc-extinguishing chamber of circuit breaker combined type spout of arc extinction performance and overall technology performance.
The purpose of this utility model is achieved by the following scheme: by insulator, upper bracket, quiet arc contact, on touch son, go up spout, spout, moving arcing contact, slip are touched son, supercharging air cylinder, undersetting, blast pipe etc. and are constituted down, the matrix of spout is by polytetrafluoroethylene or polytetrafluoroethylene is filled and other material is made, and wherein the throat at last spout and following spout embeds a kind of are-tight ring of being made by arc resistant material respectively.
Above-mentioned are-tight ring can be that whole the embedding also can be the throat that mechanical assembly type is embedded in spout.
The utility model compared with the prior art, the spout matrix in its combined type spout has been born insulation property and mechanical performance, are-tight ring has then been born anti-electrical arc erosion effect.It is to utilize existing home made materials to make the spout that can reach external advanced level, thus improved on the whole this product electric life, cut-off arc extinction performance and technical performance.
Below in conjunction with accompanying drawing the utility model is illustrated:
Fig. 1 is a structural representation of the present utility model.
As shown in Figure 1: by insulator 1, upper bracket 2, quiet arc contact 3, on touch son 4, go up spout 5, go up are-tight ring 6, electric arc 7, down are-tight ring 8, down spout 9, moving arcing contact 10, slide and touch son 11, supercharging air cylinder 12, undersetting 13, blast pipe 14, sulfur hexafluoride gas 15 and constitute.Wherein the matrix of spout is a pure polytetrafluoroethylene or tetrafluoroethene is filled or other material is made, embodiment of the present utility model is to embed a kind of are-tight ring made from arc resistant material in the most serious throat of spout scaling loss, be respectively: on last spout 5, embed are-tight ring 6, are-tight ring 8 under on following spout 9, embedding, thus constituted the spout of combined type.Arc resistant material selects for use graphite, tungsten-copper alloy and other the arc resistant material of homemade high rigidity to make.The compound mode of are-tight ring and spout matrix has two kinds, and a kind of is that integral type embeds, and embeds are-tight ring exactly when manufacturing the spout matrix.Another kind is mechanical assembly type, is to embed are-tight ring again on the basis of spout matrix.
Operation principle of the present utility model is: when the sulfur hexafluoride breaker drop-out current, produce electric arc 7 between quiet arc contact 3, electric arc 7 is limited in the centre of spout 5 and following spout 6, by the sulphur hexafluoride air-blowing, electric arc is blown out.The utility model is provided with are-tight ring 6 in the throat of last spout 5, and are-tight ring 8 under the throat of spout 9 is provided with down can significantly reduce the scaling loss of spout up and down, reaches the electric life that improves sulfur hexafluoride breaker and cut-offs arc-rupturing capacity.
Claims (2)
1, a kind of SF 6 arc-extinguishing chamber of circuit breaker combined type spout, by insulator (1), upper bracket (2), quiet arc contact (3), on touch son (4), go up spout (5), down spout (9), moving arcing contact (10), slide and touch son (11), supercharging air cylinder (12), undersetting (13), blast pipe (14) and constitute, the matrix of spout is by polytetrafluoroethylene or polytetrafluoroethylene is filled and other material is made, and it is characterized in that: the throat at last spout (5) and following spout (9) embeds a kind of are-tight ring (6), (8) of being made by arc resistant material respectively.
2, SF 6 arc-extinguishing chamber of circuit breaker combined type spout according to claim 1 is characterized in that: the are-tight ring (6) of spout and are-tight ring (8) can be whole the embeddings about being embedded in, and also can be that mechanical assembly type embeds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99258652 CN2412286Y (en) | 1999-12-29 | 1999-12-29 | Arc-suppressing chamber combined nozzle of sulfur hexafluoride breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99258652 CN2412286Y (en) | 1999-12-29 | 1999-12-29 | Arc-suppressing chamber combined nozzle of sulfur hexafluoride breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2412286Y true CN2412286Y (en) | 2000-12-27 |
Family
ID=34041187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99258652 Expired - Fee Related CN2412286Y (en) | 1999-12-29 | 1999-12-29 | Arc-suppressing chamber combined nozzle of sulfur hexafluoride breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2412286Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101047077B (en) * | 2006-03-27 | 2010-06-02 | 株式会社东芝 | Gas insulated switchgear |
| CN102290278A (en) * | 2011-08-04 | 2011-12-21 | 中国西电电气股份有限公司 | Arc striking device for electric switch equipment |
| CN105841832A (en) * | 2016-04-01 | 2016-08-10 | 平高集团有限公司 | Experiment nozzle and explosion chamber temperature measuring device using nozzle |
| CN105895396A (en) * | 2016-05-20 | 2016-08-24 | 国家电网公司 | Contact sheath and high-voltage switch employing same |
-
1999
- 1999-12-29 CN CN 99258652 patent/CN2412286Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101047077B (en) * | 2006-03-27 | 2010-06-02 | 株式会社东芝 | Gas insulated switchgear |
| CN102290278A (en) * | 2011-08-04 | 2011-12-21 | 中国西电电气股份有限公司 | Arc striking device for electric switch equipment |
| CN102290278B (en) * | 2011-08-04 | 2015-04-22 | 中国西电电气股份有限公司 | Arc striking device for electric switch equipment |
| CN105841832A (en) * | 2016-04-01 | 2016-08-10 | 平高集团有限公司 | Experiment nozzle and explosion chamber temperature measuring device using nozzle |
| CN105841832B (en) * | 2016-04-01 | 2018-12-21 | 平高集团有限公司 | A kind of experiment spout and the arc-chutes temperature measuring device using the spout |
| CN105895396A (en) * | 2016-05-20 | 2016-08-24 | 国家电网公司 | Contact sheath and high-voltage switch employing 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 |