GB838041A - Air-blast electric circuit-breaker with breaking gaps in compressed-air containers carried by insulator pillars - Google Patents
Air-blast electric circuit-breaker with breaking gaps in compressed-air containers carried by insulator pillarsInfo
- Publication number
- GB838041A GB838041A GB20324/58A GB2032458A GB838041A GB 838041 A GB838041 A GB 838041A GB 20324/58 A GB20324/58 A GB 20324/58A GB 2032458 A GB2032458 A GB 2032458A GB 838041 A GB838041 A GB 838041A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air
- valve
- compressed
- space
- channel
- 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
Abstract
838,041. Air-blast switches. ALLMANNA SVENSKA ELEKTRISKA A.B. June 25, 1958 [June 29, 1957], No. 20324/58. Class 38 (5). An air-blast switch (Fig. 1) comprises a movable piston 7 carrying a valve disc 11 which engages a sealing ring 5 on a flange 4 of the stationary contact 2, and having radiallyurged contacts 12 which together form a nozzle contact. In operation, compressed-air supplied to space 20 depresses an operating piston 9, thus opening the contacts and valve and allowing compressed-air to flow from container 1 through an escape channel 23 and cooling grid 22, this air opening the member 28 of a breaking valve 10, normally closed by a spring 29. When the piston 9 has reached its lower position, compressed-air flows through a channel 34 past a non-return valve 35 into the space 30, thus closing the member 28 and terminating the air flow from the channel 23. The breaker is closed by a spring 15 on evacuating the space 20, whereupon space 30 exhausts to atmosphere through a channel 33, similar exhaustion of channel 23 then occurring past the valve 10. If desired, the spring actuation of member 28 may cause the valve 10 to be open when the breaking gap is closed. In Fig. 2 the moving contact piston 57 has two coaxial cylinders 58, 61 enclosing a space 67 normally connected through a valve housing 68 to the compressed-air container 51. In operation compressed-air from pipe 86 lifts a membrane 69 to cause a valve member 70 to block the pipe 71 and exhaust space 67 to atmosphere, the compressed-air in container 51 opening the moving contact 57 and its valve disc 62. Simultaneously, compressed-air flows to the space 82 through a throttle 84, to lift the member 79 of a blocking valve 73 and close the compressed-air outlet 74, the throttle setting ensuring that the arc is extinguished before valve closure occurs. Evacuation of the pipe 86 resets the valve 70 to allow closure of the contact 57 by a spring 63, and the delayed opening of the member 79.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE611957 | 1957-06-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB838041A true GB838041A (en) | 1960-06-22 |
Family
ID=20267943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20324/58A Expired GB838041A (en) | 1957-06-29 | 1958-06-25 | Air-blast electric circuit-breaker with breaking gaps in compressed-air containers carried by insulator pillars |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2972666A (en) |
| CH (1) | CH362447A (en) |
| FR (1) | FR1207558A (en) |
| GB (1) | GB838041A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1221332B (en) * | 1964-08-21 | 1966-07-21 | Bbc Brown Boveri & Cie | Gas pressure switch |
| DE1266853B (en) * | 1962-09-26 | 1968-04-25 | Licentia Gmbh | Compressed gas switch with a power switching point and a voltage isolating point in series |
| DE1275186B (en) * | 1961-03-17 | 1968-08-14 | English Electric Co Ltd | Control device for a pressure gas switch |
| DE1291405B (en) * | 1965-05-04 | 1969-03-27 | Magrini Fab Riun Scarpa | Compressed gas circuit breaker |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1070266B (en) * | 1958-06-04 | |||
| DE1163940B (en) * | 1960-02-25 | 1964-02-27 | Asea Ab | Compressed air switch with a series-connected separation point in one bushing |
| CH401206A (en) * | 1963-06-28 | 1965-10-31 | Bbc Brown Boveri & Cie | Gas pressure switch |
| US3310786A (en) * | 1964-06-30 | 1967-03-21 | Ibm | Data compression/expansion and compressed data processing |
| US3686454A (en) * | 1968-09-16 | 1972-08-22 | Lee E Berkebile | Gas-blast circuit interrupter with primary and secondary blast valves |
| US3612799A (en) * | 1969-05-08 | 1971-10-12 | Ite Imperial Corp | Gas blast circuit interrupter using main movable contact as blast valve |
| US3614357A (en) * | 1969-05-08 | 1971-10-19 | Ite Imperial Corp | Gas blast circuit interrupter using main movable contact as blast valve |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE660394C (en) * | 1934-07-08 | 1938-05-21 | Frida Strauss Geb Ruppel | Switch with arc extinguishing by pressurized gas with an auxiliary vessel |
| GB512400A (en) * | 1938-02-12 | 1939-09-01 | British Thomson Houston Co Ltd | Improvements in and relating to gas blast electric switches |
| US2665351A (en) * | 1951-02-09 | 1954-01-05 | Asea Ab | Arrangement in air blast circuit breaker provided with damping resistance |
| USRE25631E (en) * | 1951-02-09 | 1964-08-18 | Air blast circuit breaker | |
| BE528467A (en) * | 1953-04-28 |
-
1958
- 1958-06-18 CH CH6076058A patent/CH362447A/en unknown
- 1958-06-19 US US743166A patent/US2972666A/en not_active Expired - Lifetime
- 1958-06-25 GB GB20324/58A patent/GB838041A/en not_active Expired
- 1958-06-26 FR FR1207558D patent/FR1207558A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1275186B (en) * | 1961-03-17 | 1968-08-14 | English Electric Co Ltd | Control device for a pressure gas switch |
| DE1266853B (en) * | 1962-09-26 | 1968-04-25 | Licentia Gmbh | Compressed gas switch with a power switching point and a voltage isolating point in series |
| DE1221332B (en) * | 1964-08-21 | 1966-07-21 | Bbc Brown Boveri & Cie | Gas pressure switch |
| DE1291405B (en) * | 1965-05-04 | 1969-03-27 | Magrini Fab Riun Scarpa | Compressed gas circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| US2972666A (en) | 1961-02-21 |
| FR1207558A (en) | 1960-02-17 |
| CH362447A (en) | 1962-06-15 |
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