GB380657A - Improvements in or relating to electric power swtiches - Google Patents
Improvements in or relating to electric power swtichesInfo
- Publication number
- GB380657A GB380657A GB33452/31A GB3345231A GB380657A GB 380657 A GB380657 A GB 380657A GB 33452/31 A GB33452/31 A GB 33452/31A GB 3345231 A GB3345231 A GB 3345231A GB 380657 A GB380657 A GB 380657A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cover
- mass
- springs
- expansion
- expansion chamber
- 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
- H01H33/7007—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein the flow is a function of the current being interrupted
-
- 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
- H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
- H01H33/75—Liquid-break switches, e.g. oil-break
Landscapes
- Circuit Breakers (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Contacts (AREA)
- Housings And Mounting Of Transformers (AREA)
- Patch Boards (AREA)
- Measuring Volume Flow (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
380,657. High tension switches. SIEMENS-SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. Dec. 2, 1931, No. 33452. Convention date. Dec. 9, 1930. Addition to 379,804. [Class 38 (v).] In an " expansion " switch wherein the pressure developed by the arc in the expansion chamber 10 is conserved until it is adequate to lift the cover 12 of the chamber and thereby open a large peripheral passage to permit of rapid expansion as in the parent Specification, the cover has a large mass or is loaded with a large mass so that its return, on the reduction of pressure, is retarded and an adequate opening is ensured during at least one zero current passage. As shown, the cover 12 of the inner expansion chamber is of massive construction and is held down by springs 15. The mass of the cover and the strength of the springs are so chosen that, considered as a mechanical oscillating system, its oscillation period is approximately half that of a complete cycle of the A.C. system on which the switch is used. The Specification as open to inspection under Sect. 91 (3) (a) describes also a modification in which the cover is loose and in rising lifts (after lost-motion) the main cover 17 which is held down by springs. In this modification the mass of both covers comes into effect to prevent the premature re-closing of the expansion chamber before the arc is extinguished. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE379804X | 1930-07-04 | ||
| DE380658X | 1930-12-09 | ||
| DE380657X | 1930-12-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB380657A true GB380657A (en) | 1932-09-22 |
Family
ID=31950088
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19155/31A Expired GB379804A (en) | 1930-07-04 | 1931-07-02 | Improvements in or relating to electric power switches |
| GB33453/31A Expired GB380658A (en) | 1930-07-04 | 1931-12-02 | Improvements in or relating to electric power switches |
| GB33452/31A Expired GB380657A (en) | 1930-07-04 | 1931-12-02 | Improvements in or relating to electric power swtiches |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19155/31A Expired GB379804A (en) | 1930-07-04 | 1931-07-02 | Improvements in or relating to electric power switches |
| GB33453/31A Expired GB380658A (en) | 1930-07-04 | 1931-12-02 | Improvements in or relating to electric power switches |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US1942294A (en) |
| BE (1) | BE381089A (en) |
| DE (3) | DE678032C (en) |
| FR (5) | FR702226A (en) |
| GB (3) | GB379804A (en) |
| NL (1) | NL35345C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2425147A (en) * | 1944-06-29 | 1947-08-05 | Westinghouse Electric Corp | Circuit interrupter |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE767713C (en) * | 1938-02-05 | 1953-04-09 | Aeg | Electric gas switch |
| DE917190C (en) * | 1943-04-10 | 1954-08-26 | Voigt & Haeffner Akt Ges | Current extinguishing chamber |
| FR920442A (en) * | 1945-10-03 | 1947-04-08 | Merlin Gerin | Interrupting chamber for alternating current |
| US7044458B2 (en) | 2001-04-30 | 2006-05-16 | Maclean-Fogg Company | Stabilizer bar |
| US6952154B2 (en) * | 2002-06-16 | 2005-10-04 | Maclean-Fogg Company | Composite insulator for fuse cutout |
| US6831232B2 (en) * | 2002-06-16 | 2004-12-14 | Scott Henricks | Composite insulator |
-
0
- NL NL35345D patent/NL35345C/xx active
- DE DENDAT623343D patent/DE623343C/de active Active
- BE BE381089D patent/BE381089A/xx unknown
-
1930
- 1930-07-04 DE DE1930678032D patent/DE678032C/en not_active Expired
- 1930-09-05 FR FR702226D patent/FR702226A/en not_active Expired
- 1930-10-12 FR FR724251D patent/FR724251A/en not_active Expired
- 1930-10-19 DE DE1930641706D patent/DE641706C/en not_active Expired
-
1931
- 1931-06-27 US US547297A patent/US1942294A/en not_active Expired - Lifetime
- 1931-06-30 FR FR720450D patent/FR720450A/en not_active Expired
- 1931-07-02 GB GB19155/31A patent/GB379804A/en not_active Expired
- 1931-12-02 GB GB33453/31A patent/GB380658A/en not_active Expired
- 1931-12-02 GB GB33452/31A patent/GB380657A/en not_active Expired
- 1931-12-08 FR FR41092D patent/FR41092E/en not_active Expired
- 1931-12-08 FR FR41093D patent/FR41093E/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2425147A (en) * | 1944-06-29 | 1947-08-05 | Westinghouse Electric Corp | Circuit interrupter |
Also Published As
| Publication number | Publication date |
|---|---|
| FR720450A (en) | 1932-02-19 |
| DE641706C (en) | 1937-02-13 |
| FR41092E (en) | 1932-10-26 |
| US1942294A (en) | 1934-01-02 |
| FR702226A (en) | 1931-04-02 |
| FR724251A (en) | 1932-04-25 |
| NL35345C (en) | |
| BE381089A (en) | |
| GB379804A (en) | 1932-09-08 |
| GB380658A (en) | 1932-09-22 |
| DE623343C (en) | |
| FR41093E (en) | 1932-10-26 |
| DE678032C (en) | 1939-07-07 |
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