FR988417A - Circuit breakers - Google Patents
Circuit breakersInfo
- Publication number
- FR988417A FR988417A FR988417DA FR988417A FR 988417 A FR988417 A FR 988417A FR 988417D A FR988417D A FR 988417DA FR 988417 A FR988417 A FR 988417A
- Authority
- FR
- France
- Prior art keywords
- circuit breakers
- breakers
- circuit
- 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
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
- H01H33/32—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator pneumatic
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US630350A US2542790A (en) | 1945-11-23 | 1945-11-23 | Circuit interrupter |
Publications (1)
Publication Number | Publication Date |
---|---|
FR988417A true FR988417A (en) | 1951-08-27 |
Family
ID=24526814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR988417D Expired FR988417A (en) | 1945-11-23 | 1947-04-30 | Circuit breakers |
Country Status (4)
Country | Link |
---|---|
US (1) | US2542790A (en) |
CH (1) | CH257854A (en) |
FR (1) | FR988417A (en) |
GB (1) | GB622162A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1144285A (en) * | 1954-12-24 | 1957-10-11 | Westinghouse Electric Corp | Circuit switches |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2015633A (en) * | 1933-07-12 | 1935-09-24 | Westinghouse Electric & Mfg Co | Circuit breaker |
US2281337A (en) * | 1937-04-03 | 1942-04-28 | Gen Electric | Circuit breaker fluid pressure operated system |
GB490518A (en) * | 1936-12-14 | 1938-08-15 | British Thomson Houston Co Ltd | Improvements in electrical switchgear |
FR873902A (en) * | 1937-11-10 | 1942-07-30 | ||
US2389942A (en) * | 1940-02-06 | 1945-11-27 | Gen Electric | Circuit breaker operating system |
US2286023A (en) * | 1940-07-11 | 1942-06-09 | Gen Electric | Pneumatic operating mechanism for circuit breakers |
US2408199A (en) * | 1941-09-13 | 1946-09-24 | Westinghouse Electric Corp | Circuit breaker |
BE483729A (en) * | 1942-07-29 | |||
US2425168A (en) * | 1943-08-06 | 1947-08-05 | Westinghouse Electric Corp | Automatic and manual reclosing control circuits for polyphase single pole circuit breakers |
US2447656A (en) * | 1944-05-24 | 1948-08-24 | Westinghouse Electric Corp | Compressed gas-operated circuit interrupter with position indicator |
-
1945
- 1945-11-23 US US630350A patent/US2542790A/en not_active Expired - Lifetime
-
1947
- 1947-03-03 GB GB5980/47A patent/GB622162A/en not_active Expired
- 1947-03-08 CH CH257854D patent/CH257854A/en unknown
- 1947-04-30 FR FR988417D patent/FR988417A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2542790A (en) | 1951-02-20 |
GB622162A (en) | 1949-04-27 |
CH257854A (en) | 1948-10-31 |
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