CN2664152Y - Electromagnetic shielding case for vacuum circuit breaker - Google Patents
Electromagnetic shielding case for vacuum circuit breaker Download PDFInfo
- Publication number
- CN2664152Y CN2664152Y CN 200320103378 CN200320103378U CN2664152Y CN 2664152 Y CN2664152 Y CN 2664152Y CN 200320103378 CN200320103378 CN 200320103378 CN 200320103378 U CN200320103378 U CN 200320103378U CN 2664152 Y CN2664152 Y CN 2664152Y
- Authority
- CN
- China
- Prior art keywords
- shielding case
- vacuum circuit
- vacuum
- shielding cover
- circuit breaker
- 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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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model relates to an electromagnetic shielding case for vacuum circuit breaker; based on the prior stainless shielding case arranged out of vacuum arc-distinguishing room, a layer of shielding case made from ferromagnetic metal is arranged to further eliminate the mutual influence between the electromagnetic field and the electronic arc, so the vacuum breaker is of a better safety performance.
Description
Technical field
The utility model relates to a kind of radome, refers in particular to a kind of electro-magnetic shielding cover that is used for vacuum circuit-breaker.
Background technology
When vacuum circuit-breaker passes through bigger three-phase shortcircuit electric current, alternate meeting produces very strong electromagnetic field, this electromagnetic field has very big influence to the electric arc that extinguishes owing to contact cut-offs or closed short circuit current produced, influence when big, can cause contact to burn partially or the contact local overheating, the arc extinguishing ability of vacuum interrupter is weakened, when serious, can cause cut-offfing failure.In the prior art, normally,,, this layer stainless steel can't eliminate the inter-phase electromagnetic field fully to effect of arc but shielding cover to reduce the inter-phase electromagnetic field to effect of arc at outer setting one deck stainless steel shielding cover of vacuum interrupter.
Summary of the invention
The purpose of this utility model provides a kind of inter-phase electromagnetic field of can further eliminating in the vacuum circuit-breaker to the electro-magnetic shielding cover of electric arc influence.
Technical solution adopted in the utility model is: a kind of electro-magnetic shielding cover that is used for vacuum circuit-breaker, comprise vacuum interrupter 1 and be located at its outside stainless steel shielding cover 2, also comprise ferromagnetic material radome 3, this ferromagnetic material radome 3 is coated on the outer surface of stainless steel shielding cover 2.
The beneficial effects of the utility model are: because on the basis of the original stainless steel shielding of vacuum extinction outdoor cover, added the radome that one deck is made by ferromagnetic material again, further eliminated the inter-phase electromagnetic field to effect of arc, made the security performance of vacuum circuit-breaker better.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is done to describe in further detail.
As shown in Figure 1, a kind of electro-magnetic shielding cover that is used for vacuum circuit-breaker comprises vacuum interrupter 1 and is located at its outside stainless steel shielding cover 2 that also comprise ferromagnetic material radome 3, this ferromagnetic material radome 3 is coated on the outer surface of stainless steel shielding cover 2.Two-layer radome can be eliminated the inter-phase electromagnetic field better to effect of arc, makes the security performance of vacuum circuit-breaker better.
Claims (1)
- A kind of electro-magnetic shielding cover that is used for vacuum circuit-breaker comprises vacuum interrupter (1) and is located at its outside stainless steel shielding cover (2), it is characterized in that: also comprise ferromagnetic material radome (3); Described ferromagnetic material radome (3) is coated on the outer surface of stainless steel shielding cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320103378 CN2664152Y (en) | 2003-11-18 | 2003-11-18 | Electromagnetic shielding case for vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320103378 CN2664152Y (en) | 2003-11-18 | 2003-11-18 | Electromagnetic shielding case for vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2664152Y true CN2664152Y (en) | 2004-12-15 |
Family
ID=34340514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320103378 Expired - Fee Related CN2664152Y (en) | 2003-11-18 | 2003-11-18 | Electromagnetic shielding case for vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2664152Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114141584A (en) * | 2021-11-03 | 2022-03-04 | 西安交通大学 | Magnetic field shielding method of high-capacity circuit breaker |
-
2003
- 2003-11-18 CN CN 200320103378 patent/CN2664152Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114141584A (en) * | 2021-11-03 | 2022-03-04 | 西安交通大学 | Magnetic field shielding method of high-capacity circuit breaker |
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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 |