GB494044A - Improvements in and relating to fluid blast electric switches - Google Patents
Improvements in and relating to fluid blast electric switchesInfo
- Publication number
- GB494044A GB494044A GB21240/37A GB2124037A GB494044A GB 494044 A GB494044 A GB 494044A GB 21240/37 A GB21240/37 A GB 21240/37A GB 2124037 A GB2124037 A GB 2124037A GB 494044 A GB494044 A GB 494044A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- hollow
- resistance
- arcing
- july
- 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
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/16—Impedances connected with contacts
- H01H33/164—Impedances connected with contacts the impedance being inserted in the circuit by blowing the arc onto an auxiliary electrode
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Circuit Breakers (AREA)
Abstract
494,044. Fluid-blast switches. AKT.- GES. BROWN, BOVERI, & CIE. July 30, 1937, No. 21240. Convention date, July 30, 1936. [Class 38 (v)] A switch in which the arc is extinguished by a flowing medium and with at least one hollow contact through which the medium flows away, has its main contacts bridged by a protective resistance which is put in circuit by means of an auxiliary contact swept over by the arc, the auxiliary contact forming a constructional part of the hollow switch contact within which it is arranged centrally so as to leave an annular free space between it and the hollow contact. In Fig. 1, the auxiliary contact e for resistance f is in the form of a rod arranged concentrically within the hollow fixed contact b and extending below the contactplane into the bore of a hollow movable contact c, which forms part of an actuating piston having a closing-spring d. The tip of e and a projecting arcing-ring h are of difficultlyvaporizable metal, as tungsten. To further hinder back-arcing, a rotary motion may be imparted to the quenching medium to produce a partial vacuum at the flow-axis thereof. The resistance f may be given a form flaring to the upper end of silencer g, so as to economize space. In Fig. 3, contact c is solid and e is hollow and is urged by a spring i so that it engages c until, in opening circuit, it is arrested by stop k with its tip projecting below the contact-plane. In Fig. 2 (not shown), e is hollow, but fixed, and projects normally into a recess in the end of c, which, as in Fig. 3, is solid.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202338X | 1936-07-30 | ||
| CH215086T | 1940-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB494044A true GB494044A (en) | 1938-10-19 |
Family
ID=32094448
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21240/37A Expired GB494044A (en) | 1936-07-30 | 1937-07-30 | Improvements in and relating to fluid blast electric switches |
| GB1341/41A Expired GB547705A (en) | 1936-07-30 | 1941-02-01 | Improvements in and relating to fluid blast electric circuit breakers |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1341/41A Expired GB547705A (en) | 1936-07-30 | 1941-02-01 | Improvements in and relating to fluid blast electric circuit breakers |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US2117261A (en) |
| BE (2) | BE440370A (en) |
| CH (2) | CH202338A (en) |
| DE (2) | DE695434C (en) |
| FR (2) | FR824792A (en) |
| GB (2) | GB494044A (en) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE908154C (en) * | 1942-01-27 | 1954-04-01 | Aeg | Free jet gas switch |
| BE453983A (en) * | 1943-01-18 | |||
| NL114857C (en) * | 1943-01-18 | |||
| US2422805A (en) * | 1943-04-17 | 1947-06-24 | Ite Circuit Breaker Ltd | Air blast circuit breaker |
| NL62332C (en) * | 1943-09-11 | |||
| US2470628A (en) * | 1944-05-24 | 1949-05-17 | Westinghouse Electric Corp | Circuit interrupter |
| BE462653A (en) * | 1945-01-27 | |||
| GB668276A (en) * | 1948-04-20 | 1952-03-12 | Willis Bevan Whitney | Improvements in gas-blast electric circuit-breakers |
| GB667004A (en) * | 1949-01-18 | |||
| US2604563A (en) * | 1949-10-03 | 1952-07-22 | Allis Chalmers Mfg Co | Circuit breaker employing high and low intensity gas blast |
| DE911280C (en) * | 1950-08-21 | 1954-05-13 | Licentia Gmbh | Electric switch with arc extinguishing by a flowing pressure medium such as compressed gas |
| FR1031543A (en) * | 1951-01-29 | 1953-06-24 | Improvements to low volume arc extinguisher circuit breakers | |
| US2678984A (en) * | 1951-12-19 | 1954-05-18 | Allis Chalmers Mfg Co | Air blast breaker interrupting head with interrupted line contact |
| DE1011035B (en) * | 1953-03-31 | 1957-06-27 | Licentia Gmbh | Heavy-duty electrical switch |
| US2911506A (en) * | 1953-09-23 | 1959-11-03 | Westinghouse Electric Corp | Circuit interrupting device |
| US2997563A (en) * | 1955-05-27 | 1961-08-22 | Westinghouse Canada Ltd | Circuit interrupters |
| DE1100762B (en) * | 1958-08-23 | 1961-03-02 | Liebknecht Transformat | High voltage compressed air switch |
| DE1165128B (en) * | 1961-03-23 | 1964-03-12 | Liebknecht Transformat | Compressed gas switch with a blow valve arranged directly at the separation point |
| NL278421A (en) * | 1961-05-17 | |||
| US3160726A (en) * | 1962-01-15 | 1964-12-08 | cromer | |
| CH410112A (en) * | 1964-08-21 | 1966-03-31 | Bbc Brown Boveri & Cie | Gas pressure switch |
| DE1222143B (en) * | 1965-02-23 | 1966-08-04 | Calor Emag Elektrizitaets Ag | High-voltage switch with arc extinguishing by a flowing extinguishing agent |
| CH518617A (en) * | 1971-05-05 | 1972-01-31 | Sprecher & Schuh Ag | Gas pressure switch |
-
0
- BE BE422849D patent/BE422849A/xx unknown
- BE BE440370D patent/BE440370A/xx unknown
-
1936
- 1936-07-31 DE DE1936A0080104 patent/DE695434C/en not_active Expired
-
1937
- 1937-07-24 FR FR824792D patent/FR824792A/en not_active Expired
- 1937-07-27 CH CH202338D patent/CH202338A/en unknown
- 1937-07-30 US US156554A patent/US2117261A/en not_active Expired - Lifetime
- 1937-07-30 GB GB21240/37A patent/GB494044A/en not_active Expired
-
1940
- 1940-01-22 CH CH215086D patent/CH215086A/en unknown
- 1940-01-28 DE DEA90773D patent/DE737822C/en not_active Expired
- 1940-12-26 FR FR51280D patent/FR51280E/en not_active Expired
-
1941
- 1941-02-01 GB GB1341/41A patent/GB547705A/en not_active Expired
- 1941-03-13 US US383217A patent/US2290004A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB547705A (en) | 1942-09-08 |
| US2117261A (en) | 1938-05-10 |
| CH202338A (en) | 1939-01-15 |
| FR51280E (en) | 1942-02-18 |
| BE422849A (en) | |
| US2290004A (en) | 1942-07-14 |
| DE737822C (en) | 1943-07-26 |
| BE440370A (en) | |
| DE695434C (en) | 1940-08-24 |
| CH215086A (en) | 1941-05-31 |
| FR824792A (en) | 1938-02-16 |
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