GB658600A - Improvements in air blast electric circuit breakers - Google Patents
Improvements in air blast electric circuit breakersInfo
- Publication number
- GB658600A GB658600A GB20554/49A GB2055449A GB658600A GB 658600 A GB658600 A GB 658600A GB 20554/49 A GB20554/49 A GB 20554/49A GB 2055449 A GB2055449 A GB 2055449A GB 658600 A GB658600 A GB 658600A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air
- switch
- valves
- blast
- aug
- 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
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
- H01H33/32—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator pneumatic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7781—With separate connected fluid reactor surface
- Y10T137/7832—Plural valves biased closed
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Circuit Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
658,600. Air-blast switches. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Aug. 8, 1949, No. 20554. Convention date, Aug. 9, 1948. [Class 38(v)] To enable the supply of compressed air to an air-blast switch to be reduced immediately after the arc has been extinguished, the switch 1 is supplied from a container 8 through blast valves 9 arranged in parallel in the air supply system, one of the valves remaining open after the others have automatically reclosed. When the switch is opened the operating solenoids 12, 13 of the valves 9 are are energized and the valves open simultaneously. Compressed air is supplied to the air-blast switch 1 through the blast pipe 10 and through a pipe 18 and chamber 17 to a cylinder containing a piston 16. After the slight delay imposed by the chamber 17 the piston 16 opens contacts 15 to interrupt the current to the two lower solenoids 12. Hence the two lower valves 9 reclose whilst the uppermost valve remains open to permit a small supply of air to the switch to prevent reignition of the arc. An isolating switch 4, 6 may be provided.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE658600X | 1948-08-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB658600A true GB658600A (en) | 1951-10-10 |
Family
ID=20314257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20554/49A Expired GB658600A (en) | 1948-08-09 | 1949-08-08 | Improvements in air blast electric circuit breakers |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2635159A (en) |
| DE (1) | DE865016C (en) |
| FR (1) | FR992064A (en) |
| GB (1) | GB658600A (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB307311A (en) * | 1927-08-30 | 1929-02-28 | Sigwart Ruppel | Improvements in or relating to the quenching of sparks in spark gaps of electrical switches and the like |
| NL62315C (en) * | 1938-05-27 | |||
| US2226856A (en) * | 1939-08-12 | 1940-12-31 | Robert L Gunter | Electrically operated control device |
-
1949
- 1949-08-04 US US108521A patent/US2635159A/en not_active Expired - Lifetime
- 1949-08-08 GB GB20554/49A patent/GB658600A/en not_active Expired
- 1949-08-09 FR FR992064D patent/FR992064A/en not_active Expired
-
1951
- 1951-12-06 DE DEA14647A patent/DE865016C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR992064A (en) | 1951-10-15 |
| DE865016C (en) | 1953-01-29 |
| US2635159A (en) | 1953-04-14 |
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