CN2298598Y - Vacuum arc-chutes magnetic screening can - Google Patents
Vacuum arc-chutes magnetic screening can Download PDFInfo
- Publication number
- CN2298598Y CN2298598Y CN 97208429 CN97208429U CN2298598Y CN 2298598 Y CN2298598 Y CN 2298598Y CN 97208429 CN97208429 CN 97208429 CN 97208429 U CN97208429 U CN 97208429U CN 2298598 Y CN2298598 Y CN 2298598Y
- Authority
- CN
- China
- Prior art keywords
- vacuum
- magnetic
- vacuum arc
- shielding cover
- magnetic shielding
- 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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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a vacuum arc-extinguishing chamber magnetic screening can, used on a vacuum switch for protecting and switching a power system in the technical field of electricity. The utility model comprises a main screening can and a magnetic screening can, wherein, the main screening made of metal material which does not conduct magnetism can absorb and condense products of vacuum arcs and uniformly distribute electric field in the vacuum arc-extinguishing chamber; the magnetic screening can made of ferromagnetic material can screen the action of external magnetic field to the vacuum arcs, can avoid the deviation combustion of the arcs, can increase the breaking capacity of the vacuum arc-extinguishing chamber and can strengthen the magnetic field between a longitudinal magnetic field structure and contacts of the vacuum arc-extinguishing chamber.
Description
The utility model belongs to electricity field, further relates to the vacuum interrupter magnetic shielding cover of electric switch field as the vacuum switch of realizing protecting electrical power system and switching.
The vacuum interrupter magnetic field that its outside lead produces in interrupting process can vertically act on vacuum arc and vacuum arc is deflected away between the contact, cause electric arc evenly not burn in contact surface, reduce the connecting-disconnecting function of vacuum interrupter, can cause the radome arcing when serious even radome is burnt, cause arc control device to damage.
The purpose of this utility model is to suppress the effect of external magnetic field to vacuum arc, vacuum arc can be burnt between contact uniformly and stably, and can improve longitudinal magnetic field between longitudinal magnetic field structure for vacuum arc control device contact, thereby improve the connecting-disconnecting function of vacuum interrupter.
The utility model comprises main shield cover and magnetic shielding cover, and magnetic shielding cover is sleeved on main shield cover outside, and these two concentric circles tubular radomes are overlapping along the median surface of axis direction, and the height of magnetic shielding cover arrives between the main shield cover height in the specified distance of opening of contact.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the utility model overall structure schematic diagram.
Fig. 2 is the structural representation of the utility model magnetic shielding cover embodiment 1.
Fig. 3 is the structural representation of the utility model magnetic shielding cover embodiment 2.
With reference to Fig. 1, Fig. 2, main shield cover 1 is the cylinder of being made by non-magnetic metal material, be sleeved on the periphery of contact, absorb the product of vacuum arc in order to condensation, the evenly distribution of vacuum interrupter internal electric field, magnetic shielding cover 2 is closed cylinders of being made by ferromagnetic material, be sleeved on outside the main shield cover, and be in the positive periphery of two-combats open contact, the height of magnetic shielding cover arrives between the main shield cover height in the specified distance of opening of contact, when the external magnetic field (mainly be the vacuum switch outside lead produce with the axial vertical magnetic field of vacuum arc arc column) when passing vacuum interrupter, shielded by magnetic shielding cover 2, make electric arc between contact avoid the effect of external magnetic field, assurance vacuum arc can be burnt on stable and uniform ground between contact, also reduced the magnetic resistance that vertical magnetic magnetic potential that contact produces is met for longitudinal magnetic field structure for vacuum arc control device magnetic shielding covers, thereby longitudinal magnetic field is strengthened, more than the effect of two aspects the connecting-disconnecting function of vacuum interrupter is improved.
With reference to Fig. 3, in the structure of the utility model magnetic shielding cover embodiment 2, open the toroidal magnetic field that a longitudinal slot 3 is responded on magnetic shielding cover in order to the electric current that reduces to flow through vacuum interrupter on the magnetic shielding cover 2.
The magnetic shielding cover that ferromagnetic material becomes because the utility model is taked to pack in the vacuum arc-extinguishing chamber contact periphery, it can shield the external magnetic field, avoid it to cause electric arc to burn partially to vacuum arc generation effect, magnetic shielding cover can reduce the magnetic resistance in the longitudinal magnetic field magnetic circuit in the longitudinal magnetic field structure for vacuum arc control device simultaneously, thereby the longitudinal magnetic field intensity between the raising contact, the connecting-disconnecting function of raising vacuum interrupter.
Claims (1)
- The vacuum interrupter magnetic shielding cover, it comprises main shield and magnetic shielding cover, it is characterized in that: magnetic shielding cover is sleeved on main shield cover outside, these two circular concentric radomes are overlapping along the median surface of axis direction, the height of magnetic shielding cover is opened apart between the main shield cover height in that contact is specified, and the magnetic shielding cover of being made by ferromagnetic material can be opened longitudinal slot or not open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97208429 CN2298598Y (en) | 1997-01-17 | 1997-01-17 | Vacuum arc-chutes magnetic screening can |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97208429 CN2298598Y (en) | 1997-01-17 | 1997-01-17 | Vacuum arc-chutes magnetic screening can |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2298598Y true CN2298598Y (en) | 1998-11-25 |
Family
ID=33927873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97208429 Expired - Fee Related CN2298598Y (en) | 1997-01-17 | 1997-01-17 | Vacuum arc-chutes magnetic screening can |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2298598Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637548A (en) * | 2011-02-08 | 2012-08-15 | Ls产电株式会社 | Vacuum interrupter for vacuum circuit breaker |
| CN107342186A (en) * | 2017-07-20 | 2017-11-10 | 中国电力科学研究院 | A kind of adjustable rotary magnetic field vacuum interrupter |
| CN112582202A (en) * | 2020-11-26 | 2021-03-30 | 国网河南省电力公司商丘供电公司 | Vacuum circuit breaker for power distribution system |
| CN113471012A (en) * | 2021-07-20 | 2021-10-01 | 四川大学 | Vacuum arc extinguish chamber |
| CN114141584A (en) * | 2021-11-03 | 2022-03-04 | 西安交通大学 | Magnetic field shielding method of high-capacity circuit breaker |
| WO2024021374A1 (en) * | 2022-07-26 | 2024-02-01 | 云南电网有限责任公司临沧供电局 | Method for treating surface of arc extinguishing chamber, and arc extinguishing device |
-
1997
- 1997-01-17 CN CN 97208429 patent/CN2298598Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637548A (en) * | 2011-02-08 | 2012-08-15 | Ls产电株式会社 | Vacuum interrupter for vacuum circuit breaker |
| CN102637548B (en) * | 2011-02-08 | 2015-06-10 | Ls产电株式会社 | Vacuum interrupter for vacuum circuit breaker |
| CN107342186A (en) * | 2017-07-20 | 2017-11-10 | 中国电力科学研究院 | A kind of adjustable rotary magnetic field vacuum interrupter |
| CN107342186B (en) * | 2017-07-20 | 2021-04-16 | 中国电力科学研究院 | Adjustable rotating magnetic field vacuum arc-extinguishing chamber |
| CN112582202A (en) * | 2020-11-26 | 2021-03-30 | 国网河南省电力公司商丘供电公司 | Vacuum circuit breaker for power distribution system |
| CN112582202B (en) * | 2020-11-26 | 2022-08-19 | 国网河南省电力公司商丘供电公司 | Vacuum circuit breaker for power distribution system |
| CN113471012A (en) * | 2021-07-20 | 2021-10-01 | 四川大学 | Vacuum arc extinguish chamber |
| US20230027571A1 (en) * | 2021-07-20 | 2023-01-26 | Sichuan University | Vacuum interrupter |
| CN114141584A (en) * | 2021-11-03 | 2022-03-04 | 西安交通大学 | Magnetic field shielding method of high-capacity circuit breaker |
| CN114141584B (en) * | 2021-11-03 | 2023-03-17 | 西安交通大学 | Magnetic field shielding method of high-capacity circuit breaker |
| WO2024021374A1 (en) * | 2022-07-26 | 2024-02-01 | 云南电网有限责任公司临沧供电局 | Method for treating surface of arc extinguishing chamber, and arc extinguishing device |
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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 |