CN202434416U - Gyromagnetic arc extinguishing chamber structure of SF6 circuit breaker - Google Patents
Gyromagnetic arc extinguishing chamber structure of SF6 circuit breaker Download PDFInfo
- Publication number
- CN202434416U CN202434416U CN2011205117526U CN201120511752U CN202434416U CN 202434416 U CN202434416 U CN 202434416U CN 2011205117526 U CN2011205117526 U CN 2011205117526U CN 201120511752 U CN201120511752 U CN 201120511752U CN 202434416 U CN202434416 U CN 202434416U
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- circuit breaker
- chamber structure
- gyromagnetic
- magnetic field
- rotating magnetic
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Abstract
The utility model belongs to the field of high-voltage SF6 circuit breakers, and particularly relates to a gyromagnetic arc extinguishing chamber structure of an SF6 circuit breaker. The gyromagnetic arc extinguishing chamber structure comprises a fixed contact (1), a rotating magnetic field generating device (3) and a movable contact (2), wherein the axially rotating magnetic field generating device (3) is fixedly arranged near the ends of the fixed contact (1) and the movable contact (2), is of a silicon steel cylinder type and comprises a silicon steel cylinder (5) and coil windings (4). 6-50 winding grooves are equally arranged on the silicon steel cylinder (5), the coil windings (4) are arranged in the winding grooves, and the width of each winding groove ranges from 2.5mm to 3mm. By the aid of the gyromagnetic arc extinguishing chamber structure, an electric arc can be rapidly cooled and extinguished, ablation of the contacts is reduced, the structures of the contacts are protected, insulating property is fine, the breaking capacity and the operational reliability of the high-voltage circuit breaker are improved, and the service life of the high-voltage circuit breaker is prolonged.
Description
Technical field
The utility model belongs to high pressure SF
6Field of circuit breakers relates in particular to and a kind ofly can between dynamic/static contact, produce rotating magnetic field, helps to improve the SF of breaker arc extinguishing ability
6Circuit breaker gyromagnetic type arc quenching chamber structure.
Background technology
In electric power system, primary cut-out is control and protection electrical equipment indispensable in the high voltage distribution installations such as power plant and transformer station as important switchgear.Primary cut-out is the most important electric equipment, is mainly used in to close to close, cut-off circuit.Along with the fast development of China's power industry, the power transmission and transformation grade also improves constantly, and runnability, the quality requirement of electric equipment products are increasingly high, high pressure SF
6Circuit breaker is as the leading products of high-voltage switch gear; In high pressure, superhigh pressure and system for ultra-high voltage transmission, play important control and protective effect; Be not damaged with other power equipment in the assurance electric power system, and then realize safe, the reliable and stable operation of electricity consumption.
SF
6Double voltage type, single pressure type and self extinguishing type three phases have mainly been experienced in the circuit breaker development: double voltage type SF
6Circuit breaker, single pressure type SF
6Circuit breaker, self extinguishing type SF
6Circuit breaker.Double voltage type SF
6Breaker structure is complicated, by high pressure SF
6Gas receiver passes through spout to the low pressure chamber arc blow-out, and SF
6Be prone to condensation when air pressure is high, need heating, use trouble.Single pressure type SF
6Circuit breaker is present the most widely used SF
6Circuit breaker, single pressure type arc control device have only a baric systerm, the relative motion of piston-cylinder in the separating brake process, the air pressure that forms the short time raises, and produces arc blowing function and comes extinguish arcs.Self extinguishing type SF
6Circuit breaker, the high-temperature gas that produces when utilizing arc burning carries out arc blow-out.Therefore need be optimized design to existing primary cut-out structure, make SF in the arc control device
6Gas contacts more abundant with electric arc, quicken the arc energy loss, reaches the purpose of rapid extinguish arcs, makes high pressure SF
6Breaker structure design more reasonable, product overall technology index are higher, operation will be more reliable.
Summary of the invention
The utility model is intended to overcome the weak point of prior art and proposes a kind of SF
6Circuit breaker gyromagnetic type arc quenching chamber structure; Electric arc blows relative horizontal of arc energy and indulges and blow under the control of rotating magnetic field, and the arc energy loss is rapid; The electric arc temperature drop is fast, extinguishes thereby electric arc is cooled off rapidly, reduces contact and ablates; Improve the beginning ability of primary cut-out, prolong the useful life of primary cut-out.
For solving the problems of the technologies described above, the utility model is achieved in that SF
6Circuit breaker gyromagnetic type arc quenching chamber structure, it comprises fixed contact, generation device of rotating magnetic field and moving contact; Said generation device of rotating magnetic field is fixed near the end of fixed contact and moving contact.
As a kind of preferred version, the said axial generation device of rotating magnetic field of the utility model can adopt the silicon steel cylinder type.
As another kind of preferred version, the said axial generation device of rotating magnetic field of the utility model comprises silicon steel cylinder and coil windings; Equal portions have slot for winding on said silicon steel cylinder; Go into the coil winding in that said slot for winding is built-in.
Further, the number of the said slot for winding of the utility model is 6～50.
Further, the groove width of the said slot for winding of the utility model is 2.5～3mm.
The utility model is behind logical three-phase alternating current; When the three-phase current of symmetry passes through the three-phase winding coil of symmetry, between dynamic/static contact, form the rotating magnetic field of a constant amplitude, invariablenes turning speed, the track of its wave amplitude is a circle; Can impel the arc energy loss; Extinguish thereby electric arc is cooled off rapidly, thereby reduce the arcing time, prolong switch life.
The novel arc quenching chamber structure that the utility model adopted make arc energy in the arc control device by traditional only according to passing through SF
6Gas carries out arc blow-out to electric arc, takes away energy, becomes the drive that has through rotating magnetic field, makes arc energy do rotary flow along axis, takes away arc energy more fast, makes the electric arc cooling and extinguishes.The utility model arc quenching chamber structure effectively reduces arc temperature, reduces contact and ablates, and improves the beginning ability of primary cut-out, prolongs the useful life of primary cut-out.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the utility model overall structure sketch map.
Fig. 2 produces rotating magnetic field device sketch map for the utility model.
Fig. 3 is the utility model three phase winding sketch mapes.
Among the figure: 1, fixed contact; 2, moving contact; 3, generation device of rotating magnetic field; 4, coil windings; 5, silicon steel cylinder.
Embodiment
As shown in the figure, SF
6Circuit breaker gyromagnetic type arc quenching chamber structure, it comprises fixed contact 1, generation device of rotating magnetic field 3 and moving contact 2; Said generation device of rotating magnetic field 3 is fixed near the end of fixed contact 1 and moving contact 2.
The said generation device of rotating magnetic field 3 of the utility model can adopt the silicon steel cylinder type.Referring to Fig. 2 and Fig. 3, the said generation device of rotating magnetic field 3 of the utility model comprises silicon steel cylinder 5 and coil windings 4; Equal portions have slot for winding on said silicon steel cylinder 5; Go into coil winding 4 in that said slot for winding is built-in.The number of the said slot for winding of the utility model is 6～50.The groove width of the said slot for winding of the utility model is 2.5～3mm.The said coil windings 4 of the utility model radially is scattered in tray type structure radially.
Referring to Fig. 1 and Fig. 2, the utility model comprises 1, fixed contact; 2, moving contact; 3, generation device of rotating magnetic field; 4, coil windings; 5, silicon steel cylinder; At fixed contact, near the fixing cylindrical shape generating means that can the produce axial rotating magnetic field end of moving arcing contact.This device takes silicon steel as material, has the groove of some in inside, and coil windings is embedded wherein, as the electrode that produces magnetic field.
The utility model is through adding near the end of the spout upper reaches and moving arcing contact by the certain thickness hollow cylinder of having of silicon steel system; Can this cylinder be equal to motor stator; And at cylinder interior fluting laying three phase windings; Three phase windings are for being symmetrical set, and promptly the axis of three phase windings differs 120 ° of electrical degrees in the space, and coil windings adopts the copper coin spurt to weld then to make and forms.
Referring to shown in Figure 2, as a kind of preferred version, the utility model is every on the silicon steel cylinder opens a groove at a distance from 60 °, is altogether 6, and groove width is 2.5mm, and the embedding coil windings.
Fig. 4 is that copper coil windings 4, three phase windings of the utility model are symmetrical set, and promptly the axis of three phase windings differs 120 ° of electrical degrees in the space, and coil windings adopts copper material.
The utility model can satisfy the requirement of cut-offfing under the special operation condition, the utlity model has very strong capacity current connecting-disconnecting function simultaneously, and through l-G simulation test research, can improve product reliability, safe operation.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (5)
1.SF
6Circuit breaker gyromagnetic type arc quenching chamber structure is characterized in that, comprises fixed contact (1), generation device of rotating magnetic field (3) and moving contact (2); Said generation device of rotating magnetic field (3) is fixed near the end of fixed contact (1) and moving contact (2).
2. SF according to claim 1
6Circuit breaker gyromagnetic type arc quenching chamber structure is characterized in that: said generation device of rotating magnetic field adopts the silicon steel cylinder type.
3. SF according to claim 2
6Circuit breaker gyromagnetic type arc quenching chamber structure is characterized in that: said generation device of rotating magnetic field (3) comprises silicon steel cylinder (5) and coil windings (4); Go up equal portions at said silicon steel cylinder (5) and have slot for winding; Go into coil winding (4) in that said slot for winding is built-in.
4. SF according to claim 3
6Circuit breaker gyromagnetic type arc quenching chamber structure is characterized in that: the number of said slot for winding is 6～50.
5. SF according to claim 4
6Circuit breaker gyromagnetic type arc quenching chamber structure is characterized in that: the groove width of said slot for winding is 2.5～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205117526U CN202434416U (en) | 2011-12-09 | 2011-12-09 | Gyromagnetic arc extinguishing chamber structure of SF6 circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205117526U CN202434416U (en) | 2011-12-09 | 2011-12-09 | Gyromagnetic arc extinguishing chamber structure of SF6 circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202434416U true CN202434416U (en) | 2012-09-12 |
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ID=46783843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205117526U Expired - Lifetime CN202434416U (en) | 2011-12-09 | 2011-12-09 | Gyromagnetic arc extinguishing chamber structure of SF6 circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202434416U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522251A (en) * | 2011-12-09 | 2012-06-27 | 沈阳工业大学 | Gyromagnetic-type arc extinguish chamber structure of SF6 circuit breaker |
-
2011
- 2011-12-09 CN CN2011205117526U patent/CN202434416U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522251A (en) * | 2011-12-09 | 2012-06-27 | 沈阳工业大学 | Gyromagnetic-type arc extinguish chamber structure of SF6 circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |
|
| CX01 | Expiry of patent term |