GB615031A - Improvements in gaseous fluid blast electric switches - Google Patents
Improvements in gaseous fluid blast electric switchesInfo
- Publication number
- GB615031A GB615031A GB24388/46A GB2438846A GB615031A GB 615031 A GB615031 A GB 615031A GB 24388/46 A GB24388/46 A GB 24388/46A GB 2438846 A GB2438846 A GB 2438846A GB 615031 A GB615031 A GB 615031A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- tube
- insulating
- gas
- blast
- 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
- H01H33/80—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve
- H01H33/82—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the fluid being air or gas
Landscapes
- Circuit Breakers (AREA)
Abstract
615,031. Gas-blast switches. ETABLISSEMENTS MERLIN & GERIN. Aug. 16, 1946, No. 24388. Convention date, May 5, 1939. [Class 38 (v)] In a gas-blast circuit-breaker a tubular movable contact 2 is surrounded with clearance by an annularmember 3, which may be either metallic or insulating according as the voltage is medium or high, and which is so spaced from the end of a fixed nozzle-contact 1, as to define a gas passage having a section substantially equal to the sum of the sections of the contact-bores. The member 3 is secured to an insulating - tube 9 which seals the end of an insulating-tube 7, and has a fluid-tight joint 13 through which the contact 2 slides. The breaker is opened by an insulating connecting-rod 23, at the same time as pressuregas, supplied over a conduit 10 and a recessed collar 8 arranged centrally around the tube 7, enters an annular blast-chamber 11 through spaced apertures 17. Owing to the clearance between the contact 2 and the member 3, the gas-pressure on the interior and exterior of the latter will be equalized, so that when the contacts separate the whole of the arc-gases will be exhausted through the contact-bores, and thereby prevented from coming into contact with the outer surface of the contact 2. Exhaust-orifices 20 in the contact 2 co-operate with a muffle 21, 22, which may be carried by the contact 2 itself or by the base of the tube 7, Fig. 2 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEE52540D DE738527C (en) | 1939-05-12 | 1939-05-12 | Electrical switch with arc extinguishing by a gas extinguishing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB615031A true GB615031A (en) | 1948-12-31 |
Family
ID=7081602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24388/46A Expired GB615031A (en) | 1939-05-12 | 1946-08-16 | Improvements in gaseous fluid blast electric switches |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2494661A (en) |
| BE (1) | BE471740A (en) |
| DE (1) | DE738527C (en) |
| FR (1) | FR859295A (en) |
| GB (1) | GB615031A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE471740A (en) * | 1939-05-12 | |||
| US3350529A (en) * | 1964-03-12 | 1967-10-31 | Asea Ab | Air blast circuit breaker with auxiliary enclosed housing |
| US3579258A (en) * | 1968-09-23 | 1971-05-18 | Gen Electric | Gas blast circuit breaker using a generally axial flow main blast |
| US3889084A (en) * | 1973-09-19 | 1975-06-10 | I T E Corp | Contact for high voltage gas blast circuit breaker with time-delayed opening |
| US3909571A (en) * | 1973-09-19 | 1975-09-30 | Ite Imperial Corp | Contact structure for high voltage gas blast circuit interrupter |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE21125E (en) * | 1939-06-20 | Switch | ||
| US716475A (en) * | 1901-04-03 | 1902-12-23 | Gen Electric | Extinguishing electric arcs. |
| US1937482A (en) * | 1928-09-18 | 1933-11-28 | Ruppel Sigwart | Compressed gas switch |
| GB398213A (en) * | 1932-03-01 | 1933-09-01 | Willis Bevan Whitney | Improvements in or relating to circuit breakers |
| DE687791C (en) * | 1932-06-04 | 1940-02-06 | Const Electr De Delle Sa Atel | Electric switch with arc extinguishing by flowing pressurized gas |
| BE471740A (en) * | 1939-05-12 | |||
| GB549595A (en) * | 1941-09-18 | 1942-11-27 | British Thomson Houston Co Ltd | Improvements in gas blast electric circuit breakers |
-
0
- BE BE471740D patent/BE471740A/xx unknown
-
1939
- 1939-05-05 FR FR859295D patent/FR859295A/en not_active Expired
- 1939-05-12 DE DEE52540D patent/DE738527C/en not_active Expired
-
1946
- 1946-08-16 GB GB24388/46A patent/GB615031A/en not_active Expired
-
1947
- 1947-01-23 US US723724A patent/US2494661A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR859295A (en) | 1940-12-14 |
| BE471740A (en) | |
| DE738527C (en) | 1943-08-19 |
| US2494661A (en) | 1950-01-17 |
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