GB983501A - Improvements in or relating to gas-blast electric circuit-breakers - Google Patents
Improvements in or relating to gas-blast electric circuit-breakersInfo
- Publication number
- GB983501A GB983501A GB10291/60A GB1029160A GB983501A GB 983501 A GB983501 A GB 983501A GB 10291/60 A GB10291/60 A GB 10291/60A GB 1029160 A GB1029160 A GB 1029160A GB 983501 A GB983501 A GB 983501A
- Authority
- GB
- United Kingdom
- Prior art keywords
- space
- valve
- contacts
- piston
- pressure
- 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
- H01H33/86—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid under pressure from the contact space being controlled by a valve
-
- 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
- H01H33/167—Impedances connected with contacts the impedance being inserted only while opening the switch
Landscapes
- Circuit Breakers (AREA)
- Gas-Insulated Switchgears (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
983,501. Gas-blast circuit-breakers. ENGLISH ELECTRIC CO. Ltd. March 22, 1961 [March 23, 1960], No. 10291/60. Heading H2B. In a gas-blast circuit-breaker having a main circuit interrupter 12 in parallel with a resistor 13 and a resistor circuit interrupter 14, the opening of a single exhaust valve 18 is effective to close the resistor circuit interrupter 14 and then to open the main interrupter 12 and the subsequent closing of the valve is effective to re-open the resistor circuit interrupter 14. When the circuit-breaker shown is to be opened, a rod 58 is moved upwards and through levers 60, 61 operates a valve 65 to supply compressed gas to the space 75 below the operating piston 41 of the exhaust valve 18. The valve 18 opens causing a drop in pressure in the spaces 20, 43 so that compressed gas supplied from the spaces 21, 36, through pipes 40, 54, acts on a piston 51 to close the contacts 50, 48 of the resistor circuit interrupter 14. The loss of pressure in the space 20 results in a loss of pressure in the space 72 to the right of a piston 29, so that compressed gas supplied through pipes 70, 68 to the space 69 moves the piston 29 to open the main contacts 25, 27. This opening of the main contacts causes linkage 31, 63, 61 to reset the valve 65 to reclose the exhaust valve 18. The main contacts 25, 27 are maintained open by an over-centre toggle spring 34, but the increase in pressure in the space 43 permits a spring 52 to re-open the contacts 50, 47, gas flowing into a closed space 46 through an aperture 47 in the contact 48 rapidly de-ionizing the arc gap. To reclose the main contacts, the rod 58 is moved downwards to operate a valve 64 to vent the space 69 to atmosphere so that the piston 29 is moved by the pressure in space 72 to close the contacts 27, 25. These contacts are maintained closed by the spring 34 when the linkage 31, 63, 61 resets the valve 64. Specification 983,502 is referred to.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB36280/64A GB983502A (en) | 1960-03-23 | 1960-03-23 | Improvements in or relating to gas-blast electric circuit-breakers |
GB10291/60A GB983501A (en) | 1960-03-23 | 1960-03-23 | Improvements in or relating to gas-blast electric circuit-breakers |
US97186A US3163737A (en) | 1960-03-23 | 1961-03-21 | Gas blast circuit breaker and operating means therefor |
JP3629364A JPS4218323B1 (en) | 1960-03-23 | 1964-06-27 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB10291/60A GB983501A (en) | 1960-03-23 | 1960-03-23 | Improvements in or relating to gas-blast electric circuit-breakers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB983501A true GB983501A (en) | 1965-02-17 |
Family
ID=9965164
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB10291/60A Expired GB983501A (en) | 1960-03-23 | 1960-03-23 | Improvements in or relating to gas-blast electric circuit-breakers |
GB36280/64A Expired GB983502A (en) | 1960-03-23 | 1960-03-23 | Improvements in or relating to gas-blast electric circuit-breakers |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36280/64A Expired GB983502A (en) | 1960-03-23 | 1960-03-23 | Improvements in or relating to gas-blast electric circuit-breakers |
Country Status (3)
Country | Link |
---|---|
US (1) | US3163737A (en) |
JP (1) | JPS4218323B1 (en) |
GB (2) | GB983501A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2550004A1 (en) * | 1983-07-29 | 1985-02-01 | Alsthom Atlantique | High-voltage circuit breaker provided with a device for inserting resistors upon closure of the circuit breaker. |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1023151A (en) * | 1961-03-17 | 1966-03-23 | English Electric Co Ltd | Improvements in or relating to gas-blast circuit-breakers |
BE633691A (en) * | 1962-07-02 | |||
GB1097131A (en) * | 1963-11-16 | 1967-12-29 | English Electric Co Ltd | Improvements in or relating to circuit breakers |
US3311726A (en) * | 1964-10-05 | 1967-03-28 | Westinghouse Electric Corp | Puffer-type fluid-blast circuit interrupter with pressurized casing for actuating driving piston |
US3379849A (en) * | 1964-12-17 | 1968-04-23 | Westinghouse Electric Corp | Dual-pressure gas-blast circuit breaker with piston means and interrupting unit in closed tank |
CH425949A (en) * | 1965-09-06 | 1966-12-15 | Bbc Brown Boveri & Cie | Compressed gas switch with multiple interruption |
US3763340A (en) * | 1971-02-12 | 1973-10-02 | Siemens Ag | High-voltage circuit breaker equipped with means for placing a resistor in parallel with the breaker contact during breaker closing operations |
CH530086A (en) * | 1971-04-02 | 1972-10-31 | Bbc Brown Boveri & Cie | Pressurized gas switch to which a pressurized gas pulse is fed to switch it off or on |
US4347414A (en) * | 1980-05-05 | 1982-08-31 | Northern Engineering Industries, Limited | Arc shorting device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1255225A (en) * | 1911-12-18 | 1918-02-05 | Cutler Hammer Mfg Co | Electric switch. |
US2665351A (en) * | 1951-02-09 | 1954-01-05 | Asea Ab | Arrangement in air blast circuit breaker provided with damping resistance |
GB760355A (en) * | 1954-03-17 | 1956-10-31 | Reyrolle A & Co Ltd | Improvements in or relating to gas-blast electric circuit-breakers |
US2955182A (en) * | 1957-06-21 | 1960-10-04 | Ite Circuit Breaker Ltd | Contact cooling means for recirculating gas blast interrupters |
-
1960
- 1960-03-23 GB GB10291/60A patent/GB983501A/en not_active Expired
- 1960-03-23 GB GB36280/64A patent/GB983502A/en not_active Expired
-
1961
- 1961-03-21 US US97186A patent/US3163737A/en not_active Expired - Lifetime
-
1964
- 1964-06-27 JP JP3629364A patent/JPS4218323B1/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2550004A1 (en) * | 1983-07-29 | 1985-02-01 | Alsthom Atlantique | High-voltage circuit breaker provided with a device for inserting resistors upon closure of the circuit breaker. |
Also Published As
Publication number | Publication date |
---|---|
JPS4218323B1 (en) | 1967-10-24 |
GB983502A (en) | 1965-02-17 |
US3163737A (en) | 1964-12-29 |
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