GB579839A - Improvements in air or gas blast electric circuit breakers - Google Patents
Improvements in air or gas blast electric circuit breakersInfo
- Publication number
- GB579839A GB579839A GB590/45A GB59045A GB579839A GB 579839 A GB579839 A GB 579839A GB 590/45 A GB590/45 A GB 590/45A GB 59045 A GB59045 A GB 59045A GB 579839 A GB579839 A GB 579839A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- air
- finger
- fingers
- blast
- 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
- H01H33/80—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve
- H01H33/82—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the fluid being air or gas
- H01H33/83—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the fluid being air or gas wherein the contacts are opened by the flow of air or gas
Landscapes
- Circuit Breakers (AREA)
Abstract
579,839. Gas-blast switches. FLURSCHEIM, C. H., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Jan. 6, 1945, No. 590. [Class 38 (v)] In an air or gas-blast circuit-breaker, contact fingers 8, 9 pivoted at 10, 11 respectively, are connected to pistons 15, 16 loaded by springs 19, 20 urging the fingers into engagement with a fixed annular nozzle contact 6 on a stem 2. The ratio of piston-area to spring-force is made greater in the case of finger 8, so that on the admission of pressurised air this finger is opened first, thereby transferring the current to finger 9, the arc subsequently drawn thereat being extinguished when the air-pressure has sufficiently increased. Finger 9 and the cooperating part of contact 6 may be provided with arcing inserts such as tungsten. Any number of contact fingers may be disposed radially about the contact 6, of which one or more may be arcing contacts, Fig. 3 (not shown), and the contact pairs may be arranged in separate contact chambers. In addition an air blast extending axially in both directions from the contacts may be obtained by providing a further gas discharge opening in an inwardlyprojecting portion 21 of the member 12. Specification 567,255 is referred to.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB590/45A GB579839A (en) | 1945-01-06 | 1945-01-06 | Improvements in air or gas blast electric circuit breakers |
| US622470A US2413555A (en) | 1945-01-06 | 1945-10-15 | Electric circuit interrupter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB590/45A GB579839A (en) | 1945-01-06 | 1945-01-06 | Improvements in air or gas blast electric circuit breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB579839A true GB579839A (en) | 1946-08-16 |
Family
ID=9707040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB590/45A Expired GB579839A (en) | 1945-01-06 | 1945-01-06 | Improvements in air or gas blast electric circuit breakers |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2413555A (en) |
| GB (1) | GB579839A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2623067A (en) * | 1950-01-10 | 1952-12-23 | Goodrich Co B F | Preparation of beta-substituted acrylic acids |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2691085A (en) * | 1951-06-26 | 1954-10-05 | Gen Electric | Electric circuit interrupter |
| US2783337A (en) * | 1953-12-10 | 1957-02-26 | Gen Electric | Fluid blast circuit interrupter |
| US2911492A (en) * | 1957-02-25 | 1959-11-03 | Gen Electric | Operating mechanism for a fluid blast circuit breaker |
| US3070680A (en) * | 1959-02-27 | 1962-12-25 | Chance Co Ab | Switch gear |
| EP1805845B1 (en) * | 2004-10-29 | 2008-09-10 | Rohde & Schwarz GmbH & Co. KG | Electric switching device comprising magnetic and/or fluidic adjusting elements |
-
1945
- 1945-01-06 GB GB590/45A patent/GB579839A/en not_active Expired
- 1945-10-15 US US622470A patent/US2413555A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2623067A (en) * | 1950-01-10 | 1952-12-23 | Goodrich Co B F | Preparation of beta-substituted acrylic acids |
Also Published As
| Publication number | Publication date |
|---|---|
| US2413555A (en) | 1946-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1272704A (en) | Gas blast circuit interrupter having conducting orifice means | |
| GB540349A (en) | Improvements in electric circuit breakers of the gas blast type | |
| GB579839A (en) | Improvements in air or gas blast electric circuit breakers | |
| GB720021A (en) | Improvements in and relating to electric circuit breakers | |
| GB1509073A (en) | Puffer-type gas circuit-interrupter | |
| GB963931A (en) | Gas blast electric circuit interrupters | |
| GB733444A (en) | Improvements in and relating to gas-blast electric circuit breakers | |
| GB908686A (en) | Improvements in air blast electric circuit breakers | |
| GB887522A (en) | Improvements in or relating to magnetic blow out electrical circuit-breakers | |
| GB583346A (en) | Improvements in gas blast electrical circuit breakers | |
| GB1477711A (en) | Electric circuit breaker | |
| GB712785A (en) | Electric gas-blast circuit breakers | |
| GB889621A (en) | A load-break disconnecting switch | |
| US2391759A (en) | Electric circuit interrupter | |
| GB635799A (en) | Improvements in electric circuit interrupting devices comprising compressed gas interrupter in series with a disconnect switch | |
| GB524983A (en) | Improvements in and relating to gas blast electric switches | |
| GB1246175A (en) | Improvements relating to contacts for electric circuit-breakers | |
| GB584718A (en) | Improvements in or relating to gas-blast electric circuit-breakers | |
| GB541941A (en) | Improvements in or relating to a.c. electric circuit-breakers of the gas-blast type | |
| GB530338A (en) | Improvements relating to gas blast electric circuit breakers | |
| GB996429A (en) | Improvements in or relating to gas-blast electric switches | |
| GB1158559A (en) | Improved a Nozzle and Contact Construction for Fluid-Blast Circuit Interrupters | |
| GB703101A (en) | Electric circuit breakers having arc-quenching means | |
| GB987869A (en) | Improvements in gas blast circuit breaker | |
| GB686207A (en) | Improvements in or relating to high-voltage electric circuit-interrupters |