GB691169A - Improvements relating to air-blast switches - Google Patents
Improvements relating to air-blast switchesInfo
- Publication number
- GB691169A GB691169A GB13421/52A GB1342152A GB691169A GB 691169 A GB691169 A GB 691169A GB 13421/52 A GB13421/52 A GB 13421/52A GB 1342152 A GB1342152 A GB 1342152A GB 691169 A GB691169 A GB 691169A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- blast
- air
- switch
- interrupter
- 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
-
- 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
Landscapes
- Circuit Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
691,169. Air-blast switches. CZECHOSLOVAK HEAVY ENGINEERING WORKS, NATIONAL CORPORATION, and GROSSE, V. May 14, 1948 [May 15, 1947], No. 13421/52. Divided out of 13343/48. Class 38 (v) An air-blast switch has main current-interrupting contacts 1, 2 in parallel with a resistor 5 in series with an auxiliary spark-gap-type interrupter 3, 4 at which arc extinction is delayed with respect to the opening of the contacts 1, 2, and additional current-carrying contacts 33, 34 in parallel with the main interrupting contacts 1, 2, the contacts 33, 34 being disposed nearest to, and the spark gap 3, 4 farthest from, the supporting insulator 11 of the switch so as to minimise the stresses acting on the insulator due to electrodynamic forces. When the switch is opened, the contacts 33, 34 are initially opened by the air blast, the contacts 1, 2 being held closed by pneumatic means (not shown) until the contacts 33, 34 are open. The air-blast acting on the contact 1 then opens the contacts 1, 2, a slide-valve (not shown) associated with the contact 1 admitting compressed air through pipes 16, 17 to the extinguishing chamber 8 of the auxiliary interrupter when the contacts 1, 2 are open. The arc drawn between the electrodes 3, 4 is extinguished by the blast through an insulating nozzle 25, this blast exhausting into the main exhaust chamber 31 of the switch through a pipe 30 formed as an ejector to avoid the return flow into the auxiliary interrupter of blast gases flowing through the nozzle contact 2 of the main interrupter. Air flowing from the chamber 8 through a pipe 21 into a cylinder 22 opens an isolator 6, 6b. If automatic reclosing of the circuit controlled by the switch is required when the air blast is shut off, the isolator 6, 6b is maintained closed throughout the operation of the switch by the application of compressed air through a pipe 41 to the closing cylinder of the isolator.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS276833X | 1947-05-15 | ||
CS210448X | 1948-04-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB691169A true GB691169A (en) | 1953-05-06 |
Family
ID=25746721
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13344/48A Expired GB681985A (en) | 1947-05-15 | 1948-05-14 | Improvements relating to air-blast switches |
GB11086/51A Expired GB691154A (en) | 1947-05-15 | 1948-05-14 | Improvements relating to air-blast switches |
GB13420/52A Expired GB691168A (en) | 1947-05-15 | 1948-05-14 | Improvements relating to air-blast switches |
GB11087/51A Expired GB682053A (en) | 1947-05-15 | 1948-05-14 | Improvements relating to air-blast switches |
GB13421/52A Expired GB691169A (en) | 1947-05-15 | 1948-05-14 | Improvements relating to air-blast switches |
Family Applications Before (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13344/48A Expired GB681985A (en) | 1947-05-15 | 1948-05-14 | Improvements relating to air-blast switches |
GB11086/51A Expired GB691154A (en) | 1947-05-15 | 1948-05-14 | Improvements relating to air-blast switches |
GB13420/52A Expired GB691168A (en) | 1947-05-15 | 1948-05-14 | Improvements relating to air-blast switches |
GB11087/51A Expired GB682053A (en) | 1947-05-15 | 1948-05-14 | Improvements relating to air-blast switches |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH276833A (en) |
FR (1) | FR966489A (en) |
GB (5) | GB681985A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1025485B (en) * | 1954-11-24 | 1958-03-06 | British Thomson Houston Co Ltd | Electric pressure gas switch |
DE1040115B (en) * | 1953-07-08 | 1958-10-02 | Reyrolle A & Co Ltd | Arrangement for switching off line networks or power supply units |
DE1059532B (en) * | 1957-11-18 | 1959-06-18 | Bbc Brown Boveri & Cie | Compressed air switch with resistors |
DE1168994B (en) * | 1957-07-01 | 1964-04-30 | Associated Electrical Ind Rugb | Contact drive for electrical pressure gas switch |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB806232A (en) * | 1956-04-14 | 1958-12-23 | Asea Ab | Improvements in electric air blast circuit breakers |
-
1948
- 1948-05-11 CH CH276833D patent/CH276833A/en unknown
- 1948-05-14 GB GB13344/48A patent/GB681985A/en not_active Expired
- 1948-05-14 GB GB11086/51A patent/GB691154A/en not_active Expired
- 1948-05-14 GB GB13420/52A patent/GB691168A/en not_active Expired
- 1948-05-14 GB GB11087/51A patent/GB682053A/en not_active Expired
- 1948-05-14 FR FR966489D patent/FR966489A/en not_active Expired
- 1948-05-14 GB GB13421/52A patent/GB691169A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1040115B (en) * | 1953-07-08 | 1958-10-02 | Reyrolle A & Co Ltd | Arrangement for switching off line networks or power supply units |
DE1025485B (en) * | 1954-11-24 | 1958-03-06 | British Thomson Houston Co Ltd | Electric pressure gas switch |
DE1168994B (en) * | 1957-07-01 | 1964-04-30 | Associated Electrical Ind Rugb | Contact drive for electrical pressure gas switch |
DE1201893B (en) * | 1957-07-01 | 1965-09-30 | Associated Electrical Ind Rugb | Electric pressure gas switch |
DE1059532B (en) * | 1957-11-18 | 1959-06-18 | Bbc Brown Boveri & Cie | Compressed air switch with resistors |
Also Published As
Publication number | Publication date |
---|---|
GB682053A (en) | 1952-11-05 |
FR966489A (en) | 1950-10-11 |
GB681985A (en) | 1952-11-05 |
CH276833A (en) | 1951-07-31 |
GB691168A (en) | 1953-05-06 |
GB691154A (en) | 1953-05-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2306186A (en) | High voltage electric circuit breaker | |
GB700491A (en) | Arrangement in air-blast electric circuit breakers provided with damping resistances | |
US2574334A (en) | Air-blast circuit breaker | |
US2367934A (en) | Fluid blast circuit breaker | |
GB691169A (en) | Improvements relating to air-blast switches | |
GB838041A (en) | Air-blast electric circuit-breaker with breaking gaps in compressed-air containers carried by insulator pillars | |
GB827408A (en) | Improvements in or relating to compressed-gas electric circuit interrupters | |
GB762988A (en) | Improvements in electric circuit breakers of the air- or gas-blast type | |
US2911492A (en) | Operating mechanism for a fluid blast circuit breaker | |
GB615749A (en) | Improvements in high-power circuit breakers having arc-extinguishing means | |
GB826463A (en) | Improvements in electric circuit breakers of the air- or gas-blast type | |
US2391826A (en) | Fluid blast circuit breaker | |
GB592965A (en) | Valve for compressed air blast circuit breakers | |
US2592079A (en) | Compressed gas operated circuit breaker | |
US2349095A (en) | Electric circuit breaker | |
GB683804A (en) | Improvements in and relating to air blast high voltage electric circuit breakers | |
GB733444A (en) | Improvements in and relating to gas-blast electric circuit breakers | |
GB702509A (en) | A gas-blast electric circuit breaker | |
GB564949A (en) | Arrangement for pneumatic operation of electrical circuit breakers | |
GB974587A (en) | Gasblast circuit-breaker with multiple interruption | |
GB673312A (en) | Improvements in air-blast electric circuit-breakers with switching resistances | |
GB750829A (en) | Electric switching device with switches arranged in series for power interruption and voltage isolation | |
GB610983A (en) | Improvements in electrical circuit breakers using compressed air blow-out | |
US2353453A (en) | Electric circuit interrupter | |
GB629991A (en) | Improvements in or relating to liquid break electric circuit interrupters |