GB541496A - Improvements in and relating to fluid-blast electric circuit breakers - Google Patents
Improvements in and relating to fluid-blast electric circuit breakersInfo
- Publication number
- GB541496A GB541496A GB11394/40A GB1139440A GB541496A GB 541496 A GB541496 A GB 541496A GB 11394/40 A GB11394/40 A GB 11394/40A GB 1139440 A GB1139440 A GB 1139440A GB 541496 A GB541496 A GB 541496A
- Authority
- GB
- United Kingdom
- Prior art keywords
- break
- july
- blast
- relating
- fluid
- 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
- H01H33/16—Impedances connected with contacts
Landscapes
- Circuit Breakers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
541,496. Gas blast - switches. BRITISH THOMSON-HOUSTON CO., Ltd. July 8, 1940, No. 11394. Convention date, July 8, 1939. [Class 38 (v)] One break 2 of a multi-break switch having nozzle-contacts is shunted, when opened, by a resistance 14 adapted to reduce the rate of recovery-voltage, the reduced current being interrupted at the subsequently-produced break 1, subjected, to a comparatively limited blast through a small nozzle. The normal carrying capacity of movable contact 5' is increased by auxiliary contacts 5" and the circuit between memlbers 5, 6 is completed by the structure 7<SP>1</SP>, bar 8 being of insulating material. The Specification as open to inspection under Sect. 91 states also that the breaks may be formed simultaneously. This subject-matter dose not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US283386A US2222719A (en) | 1939-07-08 | 1939-07-08 | Air blast circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB541496A true GB541496A (en) | 1941-11-28 |
Family
ID=23085810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11394/40A Expired GB541496A (en) | 1939-07-08 | 1940-07-08 | Improvements in and relating to fluid-blast electric circuit breakers |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2222719A (en) |
| GB (1) | GB541496A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2470628A (en) * | 1944-05-24 | 1949-05-17 | Westinghouse Electric Corp | Circuit interrupter |
| FR959519A (en) * | 1947-01-15 | 1950-03-31 | ||
| FR1004808A (en) * | 1947-06-24 | 1952-04-03 | High Power Arc Blast Switch | |
| DE1154852B (en) * | 1957-07-19 | 1963-09-26 | Siemens Ag | Electrical compressed air switch with multiple interruption |
| NL258282A (en) * | 1959-01-07 | |||
| DE1163942B (en) * | 1960-03-30 | 1964-02-27 | Siemens Ag | Valve arrangement for electrical switches |
| DE1189611B (en) * | 1960-08-31 | 1965-03-25 | Siemens Ag | Synchronous switch |
| JPS5920928A (en) * | 1982-07-26 | 1984-02-02 | 株式会社日立製作所 | Ground switch |
-
1939
- 1939-07-08 US US283386A patent/US2222719A/en not_active Expired - Lifetime
-
1940
- 1940-07-08 GB GB11394/40A patent/GB541496A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2222719A (en) | 1940-11-26 |
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