GB867065A - Improvements in oil blast electric circuit-breakers - Google Patents
Improvements in oil blast electric circuit-breakersInfo
- Publication number
- GB867065A GB867065A GB33001/59A GB3300159A GB867065A GB 867065 A GB867065 A GB 867065A GB 33001/59 A GB33001/59 A GB 33001/59A GB 3300159 A GB3300159 A GB 3300159A GB 867065 A GB867065 A GB 867065A
- Authority
- GB
- United Kingdom
- Prior art keywords
- container
- chamber
- opening
- oil
- contact
- 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
- H01H33/75—Liquid-break switches, e.g. oil-break
Abstract
867,065. Liquid-blast switches. ALLMANNA SVENSKA ELEKTRISKA A.B. Sept. 29, 1959 [Oct. 4, 1958], No. 33001/59. Class 38 (5). An oil-blast circuit-breaker comprises a movable contact 5 having a channel 13 and opening 14 and co-operable with a fixed contact 2 mounted in a closed pressure-generating chamber 3 forming part of an insulating container 1 enclosing a pressure-accumulating chamber 6, which has a sealed space 17 and is mounted by supports 11 providing an annular slot 12 communicating with the remaining space in container 1. During the initial contact separation the breaking gases pass from chamber 3 via spaces 13, 14 to the space 17 until the foot of contact 5 reaches the opening 4 and the openings 14 enter the sealed opening 8. Further contact movement uncovers the opening 7 to produce an arc-extinguishing oil blast under the pressure in space 17, oil being expelled to the container 1 through the slot 12 and the spaces 13, 14, so that the oil levels in container 1 and chamber 6 equalize automatically after the breaking operation. The chamber 3 may communicate with container 1 through a safety valve 18 and channel 19. In a modification, Fig. 2, the pressure-accumulating chamber 25 has an extra opening 20 communicating with the container 23 through a cross-channel 21 normally closed by the moving contact 22.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE922958 | 1958-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB867065A true GB867065A (en) | 1961-05-03 |
Family
ID=20276184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33001/59A Expired GB867065A (en) | 1958-10-04 | 1959-09-29 | Improvements in oil blast electric circuit-breakers |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3048683A (en) |
| CH (1) | CH373795A (en) |
| DE (1) | DE1137104B (en) |
| FR (1) | FR1237003A (en) |
| GB (1) | GB867065A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016165733A1 (en) | 2015-04-13 | 2016-10-20 | Abb Technology Ag | Device for interrupting non-short circuit currents only, in particular disconnector or earthing switch |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB382655A (en) * | 1931-07-29 | 1932-10-31 | Gustaf Adolf Juhlin | Improvements in electric circuit interrupters |
| GB427574A (en) * | 1934-01-08 | 1935-04-26 | David Reginald Davies | Improvements in or relating to electric switches or circuit breakers |
| FR801759A (en) * | 1935-02-08 | 1936-08-17 | Asea Ab | Electric circuit breaker |
| GB471300A (en) * | 1936-01-02 | 1937-09-01 | Asea Ab | Improvements in electric circuit breakers having arc quenching arrangements |
| DE717107C (en) * | 1939-11-02 | 1942-02-06 | Studiengesellschaft Fuer Hochl | Extinguishing chamber switch with a differential pump device built into the extinguishing chamber |
| GB581215A (en) * | 1944-06-09 | 1946-10-04 | Cantie Switches Ltd | Improvements in or relating to electric circuit-breakers and switches of the explosion pot type |
| DE1021918B (en) * | 1955-02-16 | 1958-01-02 | Neumann Hochspannungs App K G | Extinguishing device for electrical fluids, especially low-oil circuit breakers or the like. |
-
1959
- 1959-09-16 US US840333A patent/US3048683A/en not_active Expired - Lifetime
- 1959-09-29 GB GB33001/59A patent/GB867065A/en not_active Expired
- 1959-10-01 DE DEA32965A patent/DE1137104B/en active Pending
- 1959-10-01 CH CH7889659A patent/CH373795A/en unknown
- 1959-10-05 FR FR806735A patent/FR1237003A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1237003A (en) | 1960-07-22 |
| DE1137104B (en) | 1962-09-27 |
| US3048683A (en) | 1962-08-07 |
| CH373795A (en) | 1963-12-15 |
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