GB803748A - Improvements in air blast electric circuit breakers - Google Patents
Improvements in air blast electric circuit breakersInfo
- Publication number
- GB803748A GB803748A GB38183/56A GB3818356A GB803748A GB 803748 A GB803748 A GB 803748A GB 38183/56 A GB38183/56 A GB 38183/56A GB 3818356 A GB3818356 A GB 3818356A GB 803748 A GB803748 A GB 803748A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- chamber
- contacts
- contact
- air
- 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
Landscapes
- Circuit Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
803,748. Gas-blast switches. ALLMANNA SVENSKA ELEKTRISKA A.B. Dec. 14, 1956 (Dec. 15, 1955], No. 38183/56. Class 38 (5). An air-blast circuit-breaker with the fixed contact 4 mounted on. an insulator (not shown) in a compressed air container 1 has a nozzleformed moving contact 17 arranged to move in a cylinder 7 having at the end remote from the contacts a fixed sealing member 12 for an outlet valve 11 so that the distance between the sealing member 12 and the fixed contact 4 is equal to the sum of the length of the nozzle contact and the contact travel. As shown, a chamber 14 is connected to the container 1 by pipes 28, 29, a spring 21 holds the contacts 4, 17 closed, and a spring 13 holds the valve 11 closed. To open the breaker, compressed air is passed by a valve 34 to lift a resilient membrane 32 which operates a valve disc 30 to close the pipe 28 and connect the chamber 14 to the atmosphere. Air pressure in the chamber 1 opens the contacts and the valve 11 and in the open position a further valve disc 18 on an extension 16 of the moving contact 17 seats on a sealing device 19 to inter - rupt the connection between the chamber 14 and the atmosphere and then the valve 11 is closed by air from the container 1 entering the chamber 14 through channels 24, 25. To close the breaker the valve 34 is operated to restore atmospheric pressure below the membrane 32 to return the valve disc 30 to the position shown so that with the same pressure on each side of the disc 18 the spring 21 closes the contacts.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE345932X | 1955-12-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB803748A true GB803748A (en) | 1958-10-29 |
Family
ID=20308505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB38183/56A Expired GB803748A (en) | 1955-12-15 | 1956-12-14 | Improvements in air blast electric circuit breakers |
Country Status (4)
Country | Link |
---|---|
US (1) | US2881291A (en) |
CH (1) | CH345932A (en) |
FR (1) | FR1168141A (en) |
GB (1) | GB803748A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1169553B (en) * | 1961-12-07 | 1964-05-06 | Bbc Brown Boveri & Cie | Pressurized gas switch with double nozzle |
DE1180819B (en) * | 1960-10-15 | 1964-11-05 | Asea Ab | Actuating element for the moving contact of a compressed air switch |
DE1186126B (en) * | 1960-12-15 | 1965-01-28 | Asea Ab | Compressed air switch |
DE1221333B (en) * | 1960-02-10 | 1966-07-21 | Bbc Brown Boveri & Cie | Control valve for the supply of compressed air to the switching chambers of compressed air switches |
DE1230887B (en) * | 1961-07-25 | 1966-12-22 | Merlin & Gerin Ste Anonyme Ets | Compressed gas switch with a device to prevent arcs from stopping |
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 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB424335A (en) * | 1960-09-06 | 1935-02-11 | Frederick Thomas Walker | Improvements in and relating to the manufacture of floor coverings and like materials |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR866412A (en) * | 1940-04-06 | 1941-08-12 | Merlin Gerin | High voltage compressed gas switch |
NL94998C (en) * | 1952-05-31 | |||
BE528467A (en) * | 1953-04-28 |
-
1956
- 1956-12-10 US US627158A patent/US2881291A/en not_active Expired - Lifetime
- 1956-12-13 FR FR1168141D patent/FR1168141A/en not_active Expired
- 1956-12-14 GB GB38183/56A patent/GB803748A/en not_active Expired
- 1956-12-15 CH CH345932D patent/CH345932A/en unknown
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1221333B (en) * | 1960-02-10 | 1966-07-21 | Bbc Brown Boveri & Cie | Control valve for the supply of compressed air to the switching chambers of compressed air switches |
DE1180819B (en) * | 1960-10-15 | 1964-11-05 | Asea Ab | Actuating element for the moving contact of a compressed air switch |
DE1186126B (en) * | 1960-12-15 | 1965-01-28 | Asea Ab | Compressed air switch |
DE1230887B (en) * | 1961-07-25 | 1966-12-22 | Merlin & Gerin Ste Anonyme Ets | Compressed gas switch with a device to prevent arcs from stopping |
DE1169553B (en) * | 1961-12-07 | 1964-05-06 | Bbc Brown Boveri & Cie | Pressurized gas switch with double nozzle |
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 |
Also Published As
Publication number | Publication date |
---|---|
CH345932A (en) | 1960-04-30 |
US2881291A (en) | 1959-04-07 |
FR1168141A (en) | 1958-12-04 |
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