GB540349A - Improvements in electric circuit breakers of the gas blast type - Google Patents
Improvements in electric circuit breakers of the gas blast typeInfo
- Publication number
- GB540349A GB540349A GB13749/40A GB1374940A GB540349A GB 540349 A GB540349 A GB 540349A GB 13749/40 A GB13749/40 A GB 13749/40A GB 1374940 A GB1374940 A GB 1374940A GB 540349 A GB540349 A GB 540349A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- gas
- grooves
- insulating
- liner
- 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
- 239000007789 gas Substances 0.000 abstract 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000000926 separation method Methods 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/76—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor
Landscapes
- Circuit Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
540,349. Gas-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 2, 1940, No. 13749. Convention date, Sept. 1, 1939. [Class 38 (v)] A gas-blast circuit-breaker, comprising a tubular contact 17 movable with a close fit within an insulating, gas - evolving liner 13 to engage a fixed contact 14, is adapted to interrupt a wide range of currents by providing an insulating extension 18 which is threaded into the end of contact 17 and has on its surface a number of longitudinal grooves 19 as shown or (Fig. 3, not shown) helical grooves, all communicating with a header or passage 20 in the region of contact-separation. When breaking large currents, the grooves cause the formation of a number of parallel-connected arcs, and the arc-gases evolved are transferred by way of passage 20 to other grooves. The cross-section of the latter may increase upwards or downwards according as to whether relatively small or large currents are to be dealt with. The liner 13 is held within an insulating cylinder 10 by a threaded member 14a and annular insulating washer 15 which is gripped between the two parts of a conducting housing 12 serving with strips 15 to lead current to contact 14. The liner and cylinder 10 are apertured at 21 t) pass the gas through inter-communicating exhaust chambers 23, 24 provided with wiremesh mufflers 27 and leading through openings 28 to atmosphere. Specification 463,411 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US293085A US2223975A (en) | 1939-09-01 | 1939-09-01 | Electric circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB540349A true GB540349A (en) | 1941-10-14 |
Family
ID=23127605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13749/40A Expired GB540349A (en) | 1939-09-01 | 1940-09-02 | Improvements in electric circuit breakers of the gas blast type |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2223975A (en) |
| GB (1) | GB540349A (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2493347A (en) * | 1943-09-15 | 1950-01-03 | George L Hill | High-voltage circuit breaker for distribution lines |
| US2658977A (en) * | 1948-05-08 | 1953-11-10 | Electrical Eng Equipment Co | Electrical load break switch |
| US2591950A (en) * | 1949-02-08 | 1952-04-08 | S & C Electric Co | Circuit interrupter |
| US2687461A (en) * | 1949-02-23 | 1954-08-24 | Westinghouse Electric Corp | Air-type circuit interrupter |
| US2671144A (en) * | 1950-05-18 | 1954-03-02 | Westinghouse Electric Corp | Circuit interrupter |
| US2626332A (en) * | 1950-07-27 | 1953-01-20 | Mcgraw Electric Co | Electrical switch |
| US2877320A (en) * | 1954-08-18 | 1959-03-10 | Hill George Leslie | Fuse cutout |
| US2845510A (en) * | 1954-09-25 | 1958-07-29 | Siemens Ag | Circuit interrupters |
| US2830151A (en) * | 1955-12-09 | 1958-04-08 | Hill George Leslie | Circuit breaker |
| US3026395A (en) * | 1959-07-10 | 1962-03-20 | Westinghouse Electric Corp | Circuit interrupters |
| US3281560A (en) * | 1963-07-16 | 1966-10-25 | Pyle National Co | Explosion-proof connectors for explosive-gas environments |
| US3258568A (en) * | 1965-04-26 | 1966-06-28 | Westinghouse Electric Corp | Discharge filter for circuit interrupter |
| US3413592A (en) * | 1966-12-07 | 1968-11-26 | Rte Corp | Vented safe break terminator |
| US3539972A (en) * | 1968-05-21 | 1970-11-10 | Amerace Esna Corp | Electrical connector for high voltage electrical systems |
| US3713077A (en) * | 1970-12-22 | 1973-01-23 | Westinghouse Electric Corp | Quick make and break plug-in connector for a high voltage and high current circuit |
| US3989342A (en) * | 1973-05-18 | 1976-11-02 | International Telephone And Telegraph Corporation | Chambered arc snuffing tube for bushing assembly |
| US4958052A (en) * | 1989-02-14 | 1990-09-18 | Mahieu William R | ARC severing and displacement method and apparatus for fault current interruption |
| CN108336615A (en) * | 2018-02-05 | 2018-07-27 | 苏州华旃航天电器有限公司 | A kind of space high reliability radio frequency (RF) coaxial connector |
-
1939
- 1939-09-01 US US293085A patent/US2223975A/en not_active Expired - Lifetime
-
1940
- 1940-09-02 GB GB13749/40A patent/GB540349A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2223975A (en) | 1940-12-03 |
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