GB723156A - Improvements in and relating to gas blast electric circuit breakers - Google Patents
Improvements in and relating to gas blast electric circuit breakersInfo
- Publication number
- GB723156A GB723156A GB15759/52A GB1575952A GB723156A GB 723156 A GB723156 A GB 723156A GB 15759/52 A GB15759/52 A GB 15759/52A GB 1575952 A GB1575952 A GB 1575952A GB 723156 A GB723156 A GB 723156A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- valve
- blast
- piston
- contacts
- 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
- 239000012530 fluid Substances 0.000 abstract 3
- 230000005484 gravity Effects 0.000 abstract 1
- 238000002955 isolation Methods 0.000 abstract 1
- 230000005405 multipole Effects 0.000 abstract 1
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18888—Reciprocating to or from oscillating
- Y10T74/1892—Lever and slide
- Y10T74/18928—Straight line motions
Landscapes
- Multiple-Way Valves (AREA)
- Circuit Breakers (AREA)
Abstract
723,156. Gas-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. June 23, 1952 [June 26, 1951], No. 15759/52. Class 38 (5). An operating mechanism for a gas-blast circuitbreaker having an isolating contact 6 and an interrupting contact 4 comprises a blast valve 14 to control the supply of gas to the interrupting contact, the valve 14 being operated by a piston 19 having a projecting undercut portion 44 which acts as a sleeve valve to admit gas to a fluid motor 23 controlling the operation of the isolating contact. In the multi-pole arrangement shown, when a main valve 21 is opened, gas pressure is applied through conduits 20 to pistons 19 which move upwardly opening the blast valves 14. Gas now flows through conduits indicated at 18 to the circuit-breaker units 1 ... 3, the blast opening finger contacts 4 against the bias of springs 5 and extinguishing the arcs drawn. During the upward movement of the pistons 19, the undercut portions 44 of the piston rods 15 establish communication between ports 46, 47. Compressed gas now flows through conduits 48, 49, 50 and 43 to the fluid motor 23. The resulting downward movement of the piston 42 " breaks " an overset toggle 35, 36 so that a spring 33 aided by the piston 42 and gravity moves a connecting rod 32 to the right. The rod 32, through " straight-line " linkages 25, 27, 29, moves the isolating contacts 6 downwardly to complete the opening and isolation of the controlled circuit. When the master valve 21 is closed, springs 16 close the blast valves 14 and the contacts 4 return to their initial positions. The isolating contacts 6 are restored by opening a valve 54 so as to supply gas through a conduit indicated at 55 to the underside of piston 42. If the circuit-breaker is to operate as a reclosing circuit-breaker, a valve 51 is closed to prevent the supply of gas to the fluid motor 23 so that only the contacts 4 may be operated under the control of the valve 21. Specifications 549,756, 583,346 and 712,436 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US233542A US2667554A (en) | 1951-06-26 | 1951-06-26 | Operating mechanism for electric circuit breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB723156A true GB723156A (en) | 1955-02-02 |
Family
ID=22877665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15759/52A Expired GB723156A (en) | 1951-06-26 | 1952-06-23 | Improvements in and relating to gas blast electric circuit breakers |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2667554A (en) |
| GB (1) | GB723156A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2985337A (en) * | 1956-10-01 | 1961-05-23 | Ethyl Corp | Vented enclosure for electrical devices |
| US2841666A (en) * | 1957-07-29 | 1958-07-01 | Arnold N Anderson | Automatic transfer switch |
| US3333071A (en) * | 1966-05-03 | 1967-07-25 | Gen Electric | High voltage electric circuit breaker with means for precisely coordinating the operation of widely spaced components |
| US3624329A (en) * | 1968-11-18 | 1971-11-30 | Westinghouse Electric Corp | Operating mechanism for a circuit interrupter with toggle means continuously in underset condition |
| US3930134A (en) * | 1973-09-27 | 1975-12-30 | Westinghouse Electric Corp | Pneumatic power-unit having a driving piston and an exhaust valve |
| US3885113A (en) * | 1973-10-19 | 1975-05-20 | Gen Electric | Control for an electric circuit breaker with valve and piston operating means |
| US4110578A (en) * | 1975-12-31 | 1978-08-29 | Westinghouse Electric Corp. | Circuit breaker |
| SE457582B (en) * | 1987-04-09 | 1989-01-09 | Asea Ab | Triple High Voltage Switch |
| WO2000036620A1 (en) * | 1998-12-16 | 2000-06-22 | Siemens Aktiengesellschaft | Device for transmitting a movement |
| CA2674372C (en) * | 2008-07-30 | 2016-02-09 | Gen-Tran Corporation | Automatic transfer switch |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE432598A (en) * | 1940-06-10 | |||
| US2418739A (en) * | 1940-11-29 | 1947-04-08 | Gen Electric | Circuit breaker operating system |
-
1951
- 1951-06-26 US US233542A patent/US2667554A/en not_active Expired - Lifetime
-
1952
- 1952-06-23 GB GB15759/52A patent/GB723156A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2667554A (en) | 1954-01-26 |
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