CN2752943Y - High pressure vacuum arc-suppression room longitudinal magnetic field contact - Google Patents
High pressure vacuum arc-suppression room longitudinal magnetic field contact Download PDFInfo
- Publication number
- CN2752943Y CN2752943Y CN 200420086389 CN200420086389U CN2752943Y CN 2752943 Y CN2752943 Y CN 2752943Y CN 200420086389 CN200420086389 CN 200420086389 CN 200420086389 U CN200420086389 U CN 200420086389U CN 2752943 Y CN2752943 Y CN 2752943Y
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- coil
- contact
- magnetic field
- longitudinal magnetic
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses a high-voltage vacuum arc-extinguishing chamber longitudinal magnetic field contact, which comprises a first conductive rod, a first coil, a first support, a first conducting strip, a first contact strip, a second contact strip, a second conducting strip, a second support, a second coil and a second conductive rod via sequential assembly, wherein the first coil and the second coil are mutually arranged in 180 DEG, slots on the coils are used for dividing a circular ring into two rings and the rotating angles of the rings are close to 180 DEG. Current mainly flow through the rings of the coils. The flow directions of the current flowing in the rings of the two coils are the same, a strong longitudinal magnetic field can be generated in a space opened by the contact and thus the longitudinal magnetic field can well control a vacuum arc via a large open distance.
Description
Technical field
The invention belongs to technical field of electric appliances, relate to the contact of the arc control device of the vacuum switch that is used to realize protecting electrical power system and switching, further relate to a kind of vacuum interrupter longitudinal field contact that is used for the high voltage field.
Background technology
Current in 126kV and above high pressure and extra high voltage circuit breaker SF
6Circuit breaker is a main product.SF
6Gas is appointed as a kind of strong greenhouse gases by Kyoto Protocol, and advises forbidding SF in the year two thousand thirty comprehensively
6Gas.Vacuum circuit-breaker has environmental protection, and the properties of product advantages of higher is a main product in middle pressure grade at present.The alternative high pressure SF of development high-pressure vacuum breaker
6Circuit breaker.Vacuum interrupter is the core component of vacuum circuit-breaker, and the task of vacuum interrupter is finished by vacuum arc-extinguishing chamber contact.High-pressure vacuum breaker open big apart from than middle pressure vacuum circuit-breaker, in order under large opening, effectively to control, should adopt rational structure of contact terminal to vacuum arc.The utility model produces under such background.
Summary of the invention
The purpose of this utility model is intended to propose a kind of high voltage vacuum interrupter longitudinal field contact that is suitable for high tension vacuum arc-extinguishing chamber large opening characteristics.
The technical solution that realizes the foregoing invention purpose is, this high voltage vacuum interrupter longitudinal field contact is characterized in, it comprises first conducting rod, first coil, first support, first conducting strip, first contact blade and second contact blade; Second conducting strip, second support, second coil and second conducting rod assembly successively, and first coil and second coil are 180 degree mutually and place.
The first above-mentioned conducting rod and second conducting rod, first coil and second coil, first support and second support, first conducting strip and second conducting strip, first contact blade are identical with the structure of second contact blade.
Described coil comprises a chassis, and the diameter annulus identical with the chassis arranged on the chassis, and the groove of symmetry is each other arranged on the annulus centre, annulus is divided into two rings, the outlet of groove is the inclined-plane, is provided with a projection at the outlet side of groove, and this projection is used to constitute being electrically connected between annulus and the contact blade.
Electric current can be via first conducting rod to first coil, again through first conducting strip to first contact blade, again through second contact blade,,, flow out by second conducting rod at last through second coil to second conducting strip.Current direction also can be opposite with above-mentioned direction.First supports and second effect of propping up mechanical support, and the electric current that it circulates seldom.
High voltage vacuum interrupter longitudinal field contact of the present utility model, flowing to when electric current flows through in the ring of two coils is identical, can produce strong longitudinal magnetic field in the space that contact is opened, this longitudinal magnetic field guarantees under large opening vacuum arc to be carried out good control.Through the electromagnetic field of eddy current finite element analysis, calculate that longitudinal magnetic field distribution maximum is 206mT on the clearance between open contacts central plane, can guarantee has strong longitudinal magnetic field in the contact gap.
Description of drawings
Fig. 1 is a high voltage vacuum interrupter longitudinal field contact structure chart; Each symbol is among the figure: 1, first electric pole, 2, first coil, 3, first support, 4, first conducting strip, 5 first contact blades, 6, second contact blade, 7, second conducting strip, 8, second support, 9, second coil and 10, second conducting rod.
Fig. 2 is the structure chart of first, second coil; Symbol is among the figure: 201, chassis, 202, annulus, 203, groove, 204, projection.
Embodiment
The high voltage vacuum interrupter longitudinal field contact embodiment that provides below in conjunction with accompanying drawing and inventor is described in further detail the utility model.
The vacuum interrupter pole structure of high-pressure vacuum breaker of the present utility model as shown in Figure 1.Supporting 3, first conducting strip 4, first contact blade 5, second contact blade 6, second conducting strip 7, second support 8, second coil 9 and second conducting rod 10 by first conducting rod 1, first coil 2, first connects to form successively.Wherein first coil 2 and second coil 9 are 180 degree placements mutually;
Described coil 2 or coil 9 comprise a chassis 201, the diameter annulus identical with the chassis 202 arranged on the chassis 201, the groove 203 of symmetry is each other arranged in the middle of annulus 202, annulus 202 is divided into two rings, make electric current arrive ring 202 backs and only in annulus 202, flow through by chassis 201.The outlet of groove 203 is the inclined-plane, guarantees the simplification of processing.Outlet side at groove 203 is provided with a projection 204, and this projection 204 is used to constitute being electrically connected between annulus 202 and the contact blade.
The applicant has carried out the electromagnetic field of eddy current finite element analysis to above embodiment: contact diameter 100mm, clearance between open contacts 60mm, electric current 40kA effective value.Calculate that the longitudinal magnetic field maximum is 206mT on the clearance between open contacts central plane.Promptly use the utility model can guarantee that strong longitudinal magnetic field is arranged in the contact gap.
Claims (3)
1. a high voltage vacuum interrupter longitudinal field contact is characterized in that, it comprises that first conducting rod (1), first coil (2), first support (3), first conducting strip (4), first contact blade (5) and second contact blade (6); Second conducting strip (7), second supports (8), second coil (9) and second conducting rod (10) and assemblies successively, and first coil (2) and second coil (9) are 180 degree mutually and place.
2. high voltage vacuum interrupter longitudinal field contact as claimed in claim 1, it is characterized in that described first conducting rod (1) supports (8), first conducting strip (4) and second conducting strip (7) with second conducting rod (10), first coil (2) and second coil (9), first support (3) with second, first contact blade (5) is identical with the structure of second contact blade (6).
3. high voltage vacuum interrupter longitudinal field contact as claimed in claim 1 or 2, it is characterized in that, described coil (2) or coil (9) comprise a chassis (201), the diameter annulus identical with the chassis (202) arranged on the chassis (201), the groove (203) of symmetry is each other arranged on annulus (202) centre, annulus (202) is divided into two rings, the outlet of groove (203) is the inclined-plane, outlet side at groove (203) is provided with a projection (204), and this projection (204) is used to constitute being electrically connected between annulus (202) and the contact blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420086389 CN2752943Y (en) | 2004-12-16 | 2004-12-16 | High pressure vacuum arc-suppression room longitudinal magnetic field contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420086389 CN2752943Y (en) | 2004-12-16 | 2004-12-16 | High pressure vacuum arc-suppression room longitudinal magnetic field contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2752943Y true CN2752943Y (en) | 2006-01-18 |
Family
ID=35914352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420086389 Expired - Fee Related CN2752943Y (en) | 2004-12-16 | 2004-12-16 | High pressure vacuum arc-suppression room longitudinal magnetic field contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2752943Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101552153B (en) * | 2009-05-15 | 2011-07-27 | 宁波晟光电气有限公司 | A vacuum arc-extinguishing chamber contact |
| CN102842455A (en) * | 2011-06-23 | 2012-12-26 | Ls产电株式会社 | Electrode assembly for vacuum interrupter |
| CN110729151A (en) * | 2019-09-19 | 2020-01-24 | 平高集团有限公司 | Vacuum arc-extinguishing chamber contact, vacuum arc-extinguishing chamber and vacuum circuit breaker |
-
2004
- 2004-12-16 CN CN 200420086389 patent/CN2752943Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101552153B (en) * | 2009-05-15 | 2011-07-27 | 宁波晟光电气有限公司 | A vacuum arc-extinguishing chamber contact |
| CN102842455A (en) * | 2011-06-23 | 2012-12-26 | Ls产电株式会社 | Electrode assembly for vacuum interrupter |
| CN102842455B (en) * | 2011-06-23 | 2015-04-22 | Ls产电株式会社 | Electrode assembly for vacuum interrupter |
| CN110729151A (en) * | 2019-09-19 | 2020-01-24 | 平高集团有限公司 | Vacuum arc-extinguishing chamber contact, vacuum arc-extinguishing chamber and vacuum circuit breaker |
| CN110729151B (en) * | 2019-09-19 | 2021-12-17 | 平高集团有限公司 | Vacuum arc-extinguishing chamber contact, vacuum arc-extinguishing chamber and vacuum circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060118 Termination date: 20131216 |