GB487452A - Improvements relating to oil circuit breakers - Google Patents
Improvements relating to oil circuit breakersInfo
- Publication number
- GB487452A GB487452A GB1116137A GB1116137A GB487452A GB 487452 A GB487452 A GB 487452A GB 1116137 A GB1116137 A GB 1116137A GB 1116137 A GB1116137 A GB 1116137A GB 487452 A GB487452 A GB 487452A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- container
- pairs
- contact
- chamber
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
Abstract
487,452. Oil-blast switches. DAVIES, D. R., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. April 19, 1937, No. 11161. [Class 38 (v)] A circuit-breaker has two (or more) pairs of mating contacts arranged in parallel, the moving contacts 1, 2 being arranged for simultaneous operation by the insulating cross-bar 9 and rod 10, and the breaks between them and their corresponding fixed contacts 3, 4 being either in the same explosion chamber or, as shown, in separate explosion chambers 7, 8, the explosion spaces whereof intercommunicate. The chambers shown are of the crossjet type, and contact 2 is slightly longer than contact 1, so that arcing is mainly confined to contacts 2, 4, but any arc that may occur between 1, 3 will be extinguished by the chamber 7 assisted by the pressure set up in chamber 8. In the closed position, both contact-pairs carry the load. Contacts 3, 4 are supported on a common base 5 supported on an insulator 6 projecting through the container-base. Contacts 1, 2 are guided in sleeves 11, 12 which are mounted on a support 13 and serve with 13 as current-connections. The container may be either cylindrical or, with two pairs of contacts as shown, of elliptic cross-section, and the connections may be led into and out of the container in the manner disclosed in Specification 395,088.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1116137A GB487452A (en) | 1937-04-19 | 1937-04-19 | Improvements relating to oil circuit breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1116137A GB487452A (en) | 1937-04-19 | 1937-04-19 | Improvements relating to oil circuit breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB487452A true GB487452A (en) | 1938-06-21 |
Family
ID=9981136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1116137A Expired GB487452A (en) | 1937-04-19 | 1937-04-19 | Improvements relating to oil circuit breakers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB487452A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999052120A1 (en) * | 1998-04-08 | 1999-10-14 | Siemens Aktiengesellschaft | Overcurrent circuit-breaker, especially a generator power circuit-breaker |
-
1937
- 1937-04-19 GB GB1116137A patent/GB487452A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999052120A1 (en) * | 1998-04-08 | 1999-10-14 | Siemens Aktiengesellschaft | Overcurrent circuit-breaker, especially a generator power circuit-breaker |
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