GB467746A - Improvements in electric circuit breakers - Google Patents
Improvements in electric circuit breakersInfo
- Publication number
- GB467746A GB467746A GB3894/36A GB389436A GB467746A GB 467746 A GB467746 A GB 467746A GB 3894/36 A GB3894/36 A GB 3894/36A GB 389436 A GB389436 A GB 389436A GB 467746 A GB467746 A GB 467746A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- aperture
- contact
- arc
- movable 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
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
- H01H33/94—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected solely due to the pressure caused by the arc itself or by an auxiliary arc
- H01H33/96—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected solely due to the pressure caused by the arc itself or by an auxiliary arc the arc-extinguishing fluid being liquid, e.g. oil
Abstract
467,746. Oil - break switches. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Feb. 8, 1936, No. 3894. Convention date, Feb. 8, 1935. [Class 38 (v)] In a circuit-breaker of the kind in which a differential piston actuated by the pressure generated by the arc forces a stream of extinguishing liquid in contact with the arc, the stationary contact 1 is enclosed in a compartment 41 which is separated from the chambers 12, 13 bounded by the differential piston 11 by an insulating partition 42 provided with an opening 43 for the passage of the movable contact 15. The latter is provided with a bore terminating in the chamber 12, and on separating the contacts the pressure generated by the arc in the chamber 41 is transmitted through the movable contact and apertures 16 to the chamber 12. As soon as the movable contact has moved above the aperture 43, the piston forces a stream of liquid from the chamber 13 through the aperture. The contact 15 passes through an aperture 14 in the piston, and if the arc still persists when the tip of the contact reaches this aperture, a further extinguishing action is obtained by a stream of liquid passing from the chamber 13 to the chamber 12 through the aperture 14. The movable contact is operated through a rod 35 and lever 34, and is guided by a pin 32 screwed into the cap 5 of the extinguishing chamber. Spring-controlled valves 18, 24 are provided to relieve excess pressures in the chambers 12 and 41.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE467746X | 1935-02-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB467746A true GB467746A (en) | 1937-06-23 |
Family
ID=20310292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3894/36A Expired GB467746A (en) | 1935-02-08 | 1936-02-08 | Improvements in electric circuit breakers |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR801759A (en) |
| GB (1) | GB467746A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2878345A (en) * | 1955-02-11 | 1959-03-17 | Asea Ab | Extinguishing chamber for electric circuit breakers |
| US3048683A (en) * | 1958-10-04 | 1962-08-07 | Forwald Haakon | Extinguishing chamber for oil circuit breaker |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1087664B (en) * | 1957-05-21 | 1960-08-25 | Asea Ab | Electric circuit breaker with current-independent oil pumping device |
-
1936
- 1936-02-08 FR FR801759D patent/FR801759A/en not_active Expired
- 1936-02-08 GB GB3894/36A patent/GB467746A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2878345A (en) * | 1955-02-11 | 1959-03-17 | Asea Ab | Extinguishing chamber for electric circuit breakers |
| US3048683A (en) * | 1958-10-04 | 1962-08-07 | Forwald Haakon | Extinguishing chamber for oil circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| FR801759A (en) | 1936-08-17 |
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