CN2924763Y - Sulfur hexafluoride circuit breaker arc-quenching mechanism - Google Patents
Sulfur hexafluoride circuit breaker arc-quenching mechanism Download PDFInfo
- Publication number
- CN2924763Y CN2924763Y CN 200620092199 CN200620092199U CN2924763Y CN 2924763 Y CN2924763 Y CN 2924763Y CN 200620092199 CN200620092199 CN 200620092199 CN 200620092199 U CN200620092199 U CN 200620092199U CN 2924763 Y CN2924763 Y CN 2924763Y
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- arc
- arc extinguishing
- extinguish chamber
- control device
- sulfur hexafluoride
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Abstract
The utility model relates to a breaker arc extinguishing mechanism which takes sulfur hexafluoride as the insulation and arc extinguishing media; the sulfur hexafluoride breaker arc extinguishing mechanism includes an arc extinguishing cover, a connection screw, an insulator which is arranged between the arc extinguishing cover and the connection screw, a resin shell body and an arc extinguishing coil in the shell body; a movable contact drills through the arc extinguishing cover to electrically connect with a static contact finger switch of the connection screw for cooperation of the connection; an arc extinguishing chamber seal cover is arranged in the arc extinguishing cover; the movable contact is drilled through from an axial through hole which is arranged in the center of the seal cover; between the two a gas flow gap is arranged. The utility model integrates the rotating arc and self-extinguish arc extinguishing mechanisms organically, thus to realize the technical aim of normal breaking of the larger breaking current, in addition, the utility model has high work reliability and simple structure.
Description
Technical field
The utility model relates to the arc-extinguishing mechanism improvement technology that is connected for the sulfur hexafluoride breaker on the sub power distribution branch line.
Background technology
There are three kinds of basic arc quenching methods in the existing breaker arc extinguishing mechanism that has: revolve arc formula, air pressing type and self extinguishing type.The arc extinguishing structure that revolves the arc formula is shown in Fig. 1 typical structure, it is by connecing spiral shell 10, arc-extinguish chamber 5, will connecing insulator 8, resin-case 7 and envelope that 5 insulation of spiral shell 10 and arc-extinguish chamber are connected and irritate housing 7 interior Petersen coils 4 and constitute, Petersen coil 4 with connect spiral shell 10 and arc-extinguish chamber 5 is electrically connected, moving contact 11 is passed by the axis of the arcing ring 12 of arc-extinguish chamber 5, cooperate with stationary contact finger ring 9 switches in connecing spiral shell 10, stationary contact finger ring 9 is garter spring 17 some contact lock rings to be made of on quiet electric conductor 18.Its operation principle is: circuit breaker is in cut-offfing circuit, it cut-offs electric arc and produced the magnetic field coaxial with moving contact under Petersen coil 4 electromagnetic force effect, this magnetic field rotates electric arc and is elongated in arc control device, release heat in sulfur hexafluoride gas makes it cool off as early as possible, extinguish.2. the air pressing type arc quenching principle is by the gas compressing apparatus in the arc control device, with the sulfur hexafluoride gas compression, cut-offs moment at contact, and the ejection Compressed Gas blows the outage arc, reaches the arc extinguishing purpose.3. the self extinguishing type arc quenching principle is: utilize the electric arc self-energy, make the sulfur hexafluoride gas moment pressuring expansion in the arc control device, by the spout ejection, blow the outage arc.More than in several arc extinguishing forms, revolve the arc formula and can only cut-off less specified drop-out current, just unable to do what one wishes for drop-out current bigger like this more than the 16KA; Air pressing type and self extinguishing type constitute arc-extinguishing mechanism in conjunction with other version usually, that uses both at home and abroad has the arc of revolving formula-air pressing type, two kinds of composite constructions of self extinguishing type-air pressing type, though can cut-off bigger drop-out current, but structure is all comparatively complicated, and its actual manufacturing process is loaded down with trivial details and strict, and rate of finished products is low, difficult to be produced in enormous quantities.From the above mentioned, the arc extinguishing structure of existing sulfur hexafluoride breaker and imperfect.
The utility model content
Goal of the invention of the present utility model is comprehensively to revolve arc formula and self extinguishing type arc extinguishing mechanism and provides a kind of and can normally cut-off, realize rapid rupturing duty, sulfur hexafluoride breaker arc-extinguishing mechanism simple in structure to big drop-out current.
Realize the sulfur hexafluoride breaker arc-extinguishing mechanism technical scheme of foregoing invention purpose, its major technique content is: a kind of sulfur hexafluoride breaker arc-extinguishing mechanism, its structure comprises arc-extinguish chamber, connect spiral shell, arc-extinguish chamber with connect the insulator that spiral shell insulation is connected, resin-case and the embedding Petersen coil formation in housing; Petersen coil with connect spiral shell and arc-extinguish chamber is electrically connected, moving contact passes the arcing ring of arc-extinguish chamber and bores a hole, cooperates with stationary contact finger ring switch, be provided with the arc control device sealing cover that in arc-extinguish chamber, forms semiclosed arc control device in the arc-extinguish chamber, these arc control device sealing cover central authorities are provided with the axially extending bore that is used to wear moving contact, are the gas flow gap between moving contact and the axially extending bore.
The sulfur hexafluoride breaker arc-extinguishing mechanism technical scheme that present patent application provided, its arc control device sealing cover becomes semi-closed structure with original open arc control device, when it revolves arc arc extinguishing process, also rapidly in these semiclosed arc control device moment improve gas pressure, and in gas flow gap location generation high velocity gas stream, form strong winding-up ability, blow the outage arc.The technical program is to revolve the arc extinguishing structure that arc formula and self extinguishing type organically combine, and having realized revolving arc formula arc-extinguishing mechanism can be the technical purpose that the big drop-out current more than the 16KA cut-offs rapidly to specified drop-out current, and it is simple in structure, functional reliability is high.
Description of drawings
Fig. 1 is the existing arc formula breaker arc extinguishing mechanism sectional structure chart that revolves
Fig. 2 is the sectional structure chart of the utility model sulfur hexafluoride breaker arc-extinguishing mechanism
Fig. 3 is vertical sectional structure chart of this arc-extinguishing mechanism arc-extinguish chamber 5
Fig. 4 is that the A of Fig. 3 is to view
Fig. 5 is the main TV structure figure of arc control device sealing cover 1 in this arc-extinguishing mechanism.
Embodiment
The arc-extinguishing mechanism of sulfur hexafluoride breaker of the present utility model is structure as shown in Figure 2, it includes arc-extinguish chamber 5, connect spiral shell 10, arc-extinguish chamber 5 with connect the insulator 8 that spiral shell 10 insulation is connected, resin-case 7, the Petersen coil 4 of embedding in housing 7, the moving contact 11 that cooperates with switch constitutes with stationary contact finger ring 9, Petersen coil 4 with connect spiral shell 10 and arc-extinguish chamber 5 is electrically connected, resin-case 7 evenly mixes pouring by epoxy resin and alundum (Al and makes, connecing spiral shell 10 is threaded with insulator 8, arc-extinguish chamber 5 is fixing with insulator 8 by screw 6, the axial space of this arc-extinguishing mechanism is divided into the top arc control device and the bottom connects the spiral shell space by the arcing ring 12 of arc-extinguish chamber 5, stationary contact finger ring 9 with connect spiral shell 10 and be communicated with to be arranged at and connect in the spiral shell space; Moving contact 11 pass arc-extinguish chamber 5 arcing ring twelve punch, cooperate with stationary contact finger ring 9 switches; Be provided with the arc control device sealing cover 1 that forms semiclosed arc control device 13 in arc-extinguish chamber in the arc-extinguish chamber 5, these arc control device sealing cover 1 central authorities are provided with the axially extending bore 15 that wears moving contact 11, are gas flow gap 14 between moving contact 11 and the axially extending bore 15.This arc control device sealing cover 1 is to make with polytetrafluoroethylmaterial material, its physics, chemistry and mechanical electric stable performance.
The rupturing duty process of this sulfur hexafluoride breaker arc-extinguishing mechanism is: circuit breaker is in cut-offfing circuitry processes, moving contact 11 produces strong electric arc with the moment that stationary contact finger ring 9 is begun to separate by closure, electric arc is transferred on the arcing ring 12 immediately, when flowing through Petersen coil 4, produce a longitudinal axis the action of a magnetic field in this electric arc, under the electromagnetic force effect, make electric arc center on longitudinal axis high speed rotating, elongation, with the continuous contact process of sulfur hexafluoride gas in release heat, electric arc is cooled off fast, this is consistent with revolving arc formula arc quenching principle; Meanwhile, the powerful heat that electric arc produced makes that the sulfur hexafluoride gas of arc control device 13 expands rapidly, supercharging, and outwards release rapidly by the gas flow gap 14 between moving contact 11 and the axially extending bore 15, the powerful stream of dying that blows that moment produced of releasing is enough to blow the outage arc, and this is consistent with the arc quenching principle of self extinguishing type.Therefore, the technical program combines revolves arc formula and the work of self extinguishing type arc quenching principle, has stronger, arc extinguishing ability more rapidly, can realize that drop-out current is normally to cut-off under the situation of 16KA.
In order to prevent that the strong electric arc that the circuit interrupting process produces from causing arc control device 13 overvoltages and the damage that expands, in the technical program, as shown in Figure 5, its circumference of arc control device sealing cover 1 upper edge evenly is provided with some relief holes 2, and relief hole 2 is partly released the pressurization gas that is heated in the arc control device 13; In order further to improve the pressure release effect, its circumference also evenly is provided with relief hole 3 in arc-extinguish chamber 5 upper edges, thereby protects this arc-extinguishing mechanism.
Claims (3)
1. sulfur hexafluoride breaker arc-extinguishing mechanism, its structure comprises arc-extinguish chamber (5), connects spiral shell (10), arc-extinguish chamber with connect the insulator (8) that the spiral shell insulation is connected, resin-case (7) and embedding Petersen coil (4) formation in housing; Petersen coil with connect spiral shell and arc-extinguish chamber is electrically connected, moving contact (11) passes the arcing ring (2) of arc-extinguish chamber and bores a hole, cooperates with stationary contact finger ring (9) switch, it is characterized in that being provided with in the arc-extinguish chamber arc control device sealing cover (1) that in arc-extinguish chamber, forms semiclosed arc control device (13), these arc control device sealing cover central authorities are provided with the axial siphunculus (15) that is passed by moving contact, are gas flow gap (14) between moving contact and the axial siphunculus.
2. arc-extinguishing mechanism according to claim 1 is characterized in that evenly being provided with some relief holes (2) at its circumference of arc control device sealing cover (1) upper edge.
3. arc-extinguishing mechanism according to claim 2 is characterized in that being provided with on arc-extinguish chamber (5) if in relief hole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620092199 CN2924763Y (en) | 2006-07-20 | 2006-07-20 | Sulfur hexafluoride circuit breaker arc-quenching mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620092199 CN2924763Y (en) | 2006-07-20 | 2006-07-20 | Sulfur hexafluoride circuit breaker arc-quenching mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2924763Y true CN2924763Y (en) | 2007-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620092199 Expired - Fee Related CN2924763Y (en) | 2006-07-20 | 2006-07-20 | Sulfur hexafluoride circuit breaker arc-quenching mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2924763Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102360984A (en) * | 2011-10-08 | 2012-02-22 | 贵州长征中压开关设备有限公司 | Device for connecting circuit breaker with sulfur hexafluoride gas tank |
| CN104143465A (en) * | 2013-09-24 | 2014-11-12 | 国家电网公司 | High-speed earthing switch and earthing switch assembly unit with the same |
| CN104637724A (en) * | 2015-03-02 | 2015-05-20 | 周盈裕 | Environment-friendly arc extinguish chamber for magnetic circuit breaker |
| CN110752114A (en) * | 2019-10-31 | 2020-02-04 | 河南领智电气有限公司 | Self-energy rotary arc composite sulfur hexafluoride arc extinguishing chamber |
| CN111403231A (en) * | 2020-03-13 | 2020-07-10 | 云南电网有限责任公司电力科学研究院 | Hybrid arc extinguishing chamber |
| CN111828641A (en) * | 2019-04-15 | 2020-10-27 | 王嬿蕾 | Strong airflow clamping sealing device based on lightning protection arc extinguishing |
| CN113196432A (en) * | 2018-12-19 | 2021-07-30 | Abb瑞士股份有限公司 | Electrical switching system |
-
2006
- 2006-07-20 CN CN 200620092199 patent/CN2924763Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102360984A (en) * | 2011-10-08 | 2012-02-22 | 贵州长征中压开关设备有限公司 | Device for connecting circuit breaker with sulfur hexafluoride gas tank |
| CN102360984B (en) * | 2011-10-08 | 2013-09-25 | 贵州长征中压开关设备有限公司 | Device for connecting circuit breaker with sulfur hexafluoride gas tank |
| CN104143465A (en) * | 2013-09-24 | 2014-11-12 | 国家电网公司 | High-speed earthing switch and earthing switch assembly unit with the same |
| CN104637724B (en) * | 2015-03-02 | 2016-07-06 | 周盈裕 | Environment protection type magnetic power circuit breaker arc-chutes |
| CN104637724A (en) * | 2015-03-02 | 2015-05-20 | 周盈裕 | Environment-friendly arc extinguish chamber for magnetic circuit breaker |
| CN113196432A (en) * | 2018-12-19 | 2021-07-30 | Abb瑞士股份有限公司 | Electrical switching system |
| CN113196432B (en) * | 2018-12-19 | 2022-04-15 | Abb瑞士股份有限公司 | Electrical switching system |
| US11335524B2 (en) | 2018-12-19 | 2022-05-17 | Abb Schweiz Ag | Electrical switching system |
| CN111828641A (en) * | 2019-04-15 | 2020-10-27 | 王嬿蕾 | Strong airflow clamping sealing device based on lightning protection arc extinguishing |
| CN110752114A (en) * | 2019-10-31 | 2020-02-04 | 河南领智电气有限公司 | Self-energy rotary arc composite sulfur hexafluoride arc extinguishing chamber |
| CN110752114B (en) * | 2019-10-31 | 2021-12-03 | 河南领智电气有限公司 | Self-energy rotary arc composite sulfur hexafluoride arc extinguishing chamber |
| CN111403231A (en) * | 2020-03-13 | 2020-07-10 | 云南电网有限责任公司电力科学研究院 | Hybrid arc extinguishing chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LIAONING YIDE ELECTRIC CO., LTD. Free format text: FORMER OWNER: DANDONG POWER SUPPLY DEVICE FACTORY Effective date: 20130307 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130307 Address after: 118000 No. 603 Jinshan street, Yuanbaoshan District, Liaoning, Dandong Patentee after: DANDONG POWER-SUPPLYING EQUIPMENT FACTORY Address before: 118000, No. 603 toad Avenue, Yuanbaoshan District, Liaoning, Dandong Patentee before: Dandong Power Supply Device Factory |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070718 Termination date: 20140720 |
|
| EXPY | Termination of patent right or utility model |