GB513619A - Improvements in and relating to liquid-blast electric circuit breakers - Google Patents
Improvements in and relating to liquid-blast electric circuit breakersInfo
- Publication number
- GB513619A GB513619A GB7080/39A GB708039A GB513619A GB 513619 A GB513619 A GB 513619A GB 7080/39 A GB7080/39 A GB 7080/39A GB 708039 A GB708039 A GB 708039A GB 513619 A GB513619 A GB 513619A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- arc
- pressure
- chamber
- spring
- 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
- H01H33/98—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being initiated by an auxiliary arc or a section of the arc, without any moving parts for producing or increasing the flow
-
- 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
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
- Circuit Breakers (AREA)
Abstract
513,619. Liquid - blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. March 3, 1939, No. 7080. Convention date, March 3, 1938. [Class 38 (v)] A switch for opening high-voltage power circuits comprises an insulating arc-chamber containing arc - quenching liquid, relativelymovable contacts separable in the chamber to form a pressure-generating arc, a plurality of independently - operable contacts arranged to form a plurality of breaks in series with the arc located adjacent to exhaust ports in the chamber and substantially in symmetrical relation to the pressure-generating arc, and means for biassing the independently - movable contacts towards closed-circuit position and permitting opening thereof only in response to limited arc pressure within the chamber. The invention is shown in its application to one pole of a conventional oiltank breaker with lead-in insulators 1 and a movable contact rod 9 on one end of a lift rod (not shown). The arc-chamber 4<1> is formed in a strong insulating cylinder 4 supported by insulating members 5 from an adapter 7 on the lead-in conductor 2. Pairs of fixed contacts 12, 13 and 14, 15 are normally bridged by spring- controlled contacts 10, 11 respectively, which by means of interconnectors 16, 19, 22 are placed in series with the pressure-generating contacts 8, 9. Contacts 10, 11 are loosely mounted on extensions 24" of plungers 24<1> from which they are spaced by washers 26. Apertures are provided in the contacts 10, 11, washers 26, and plungers 24<1> so that contact-opening is not retarded. When 9 is lowered and the arc-pressure developed thereby is sufficient to overcome the spring 10<1>, 11<1>, the contacts 10, 11 open and a blast occurs through ports 25 adjacent each break. These contacts reclose when the pressure subsides, leaving the circuit isolated at 8, 9. In a modification, Fig. 2 (not shown), a single break at each end is produced by movement of a flaplike, spring - controlled contact, exhaust ports being arranged in the tube-end plates and separated by arc-splitters.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US145057A US2134572A (en) | 1937-05-27 | 1937-05-27 | Electric circuit breaker |
| US193709A US2160673A (en) | 1937-05-27 | 1938-03-03 | Electric circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB513619A true GB513619A (en) | 1939-10-17 |
Family
ID=26727926
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15763/38A Expired GB501390A (en) | 1937-05-27 | 1938-05-26 | Improvements in and relating to electric circuit breakers of the oil blast type |
| GB7080/39A Expired GB513619A (en) | 1937-05-27 | 1939-03-03 | Improvements in and relating to liquid-blast electric circuit breakers |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15763/38A Expired GB501390A (en) | 1937-05-27 | 1938-05-26 | Improvements in and relating to electric circuit breakers of the oil blast type |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US2134572A (en) |
| BE (1) | BE428290A (en) |
| FR (1) | FR838465A (en) |
| GB (2) | GB501390A (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB570496A (en) * | 1943-08-09 | 1945-07-10 | British Thomson Houston Co Ltd | Improvements in gas blast electric circuit breakers |
| US2456926A (en) * | 1944-08-10 | 1948-12-21 | Westinghouse Electric Corp | Circuit interrupter |
| US2488569A (en) * | 1944-10-04 | 1949-11-22 | Westinghouse Electric Corp | Circuit interrupter |
| GB583346A (en) * | 1944-10-20 | 1946-12-16 | British Thomson Houston Co Ltd | Improvements in gas blast electrical circuit breakers |
| US2462795A (en) * | 1945-01-13 | 1949-02-22 | Westinghouse Electric Corp | Circuit interrupter |
| US2439264A (en) * | 1945-06-07 | 1948-04-06 | Gen Electric | Electric switch |
| US2460450A (en) * | 1946-09-12 | 1949-02-01 | Westinghouse Electric Corp | Circuit interrupter |
| GB600733A (en) * | 1947-04-16 | 1948-04-16 | Westinghouse Electric Int Co | Improvements in or relating to fluid blast electric circuit interrupters, having arcextinguishing means |
| US2806111A (en) * | 1954-04-26 | 1957-09-10 | Westinghouse Electric Corp | Circuit interrupters |
| US2927181A (en) * | 1958-02-27 | 1960-03-01 | Gen Electric | Fluid blast circuit interrupter |
| US2927182A (en) * | 1958-02-27 | 1960-03-01 | Gen Electric | Fluid blast circuit interrupter |
| US2927986A (en) * | 1958-04-30 | 1960-03-08 | Gen Electric | Fluid blast circuit interrupter |
| US3028465A (en) * | 1958-10-06 | 1962-04-03 | Gen Electric | Fluid blast circuit interrupter |
| US3028466A (en) * | 1959-05-28 | 1962-04-03 | Gen Electric | Electric circuit interrupter of the liquid-break type |
| CN113097026B (en) * | 2021-04-06 | 2023-12-19 | 中国科学院合肥物质科学研究院 | Multi-voltage adjustable blasting circuit breaker for fusion reactor host |
-
1937
- 1937-05-27 US US145057A patent/US2134572A/en not_active Expired - Lifetime
-
1938
- 1938-03-03 US US193709A patent/US2160673A/en not_active Expired - Lifetime
- 1938-05-26 GB GB15763/38A patent/GB501390A/en not_active Expired
- 1938-05-27 BE BE428290D patent/BE428290A/xx unknown
- 1938-05-27 FR FR838465D patent/FR838465A/en not_active Expired
-
1939
- 1939-03-03 GB GB7080/39A patent/GB513619A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR838465A (en) | 1939-03-07 |
| BE428290A (en) | 1938-07-30 |
| US2160673A (en) | 1939-05-30 |
| GB501390A (en) | 1939-02-27 |
| US2134572A (en) | 1938-10-25 |
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