GB605217A - Improvements in or relating to gas-blast electric circuit-breakers - Google Patents
Improvements in or relating to gas-blast electric circuit-breakersInfo
- Publication number
- GB605217A GB605217A GB34216/45A GB3421645A GB605217A GB 605217 A GB605217 A GB 605217A GB 34216/45 A GB34216/45 A GB 34216/45A GB 3421645 A GB3421645 A GB 3421645A GB 605217 A GB605217 A GB 605217A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- chamber
- exhaust
- blast
- contacts
- 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
Landscapes
- Circuit Breakers (AREA)
Abstract
605,217. Gas-blast switches. REYROLLE & CO., Ltd., A., and AMER, D. F. Dec. 18, 1945, No. 34216. [Class 38 (v)] In a gas-blast circuit breaker having a gas delivery-chamber or reservoir on the highpressure side of a nozzle, and a blast-valve at the outlet side of an exhaust-chamber on the low-pressure side of the nozzle, an exhaust-valve is arranged in tandem with the blast-valve, the valves being sequentially-controlled by a single control-device, so that during opening of the breaker the blast-valve is opened before the exhaust-valve is closed, and during closure of the breaker the exhaust-valve is opened before the blast-valve is closed. In Fig. 1 a rotary control shaft F in the base of a post insulator A, is connected through a crank F<1> and an insulating rod F<2> to the exhaust-valve C<4>, and through toggle-linkages C<5>, E' to the blast-valve E and a pair of series-connected movable-contacts G. The breaker is opened by rotation of the shaft F, the valve E opening before the valve C' closes, arid before the contacts G, D<2> separate, so that gas flows through the exhaust-chamber D, an expansion-chamber C, and a non-return valve C<1> to atmosphere. When the valve C<4> closes the contacts G, D<2> separate, and a stream of arc-extinguishing gas flows from the reservoir B through the nozzles D<1>, and expands into the chamber C, the build-up of back-pressure in the chamber D being delayed until the arc is extinguished. The exhaust-gases are, for the most part, held and cooled in the chamber C until the breaker is reclosed, the valve C<4> then opening before the valve E closes, so as to discharge the exhaust-gases and at the same time scavenge the chambers D, C. As the togglelinkage E<4> re-closes the contacts G, the valve E closes and restores the pressure in the chamber D. In metal-clad withdrawable switch-gear, Fig. 4, the expansion-chamber H and exhaust-chamber J are arranged wholly within the reservoir L, and the chamber J has an extension J<2> with nozzles J<3>, J<4>, in alignment with contacts K, K<1>, the extension J<2> being connected to the contact K<1> through a resistance M<2>. In an open-type circuit-breaker, Fig. 5 (not shown), the movable-contact co-operates with nozzles arranged in opposite walls of a plurality of conduits which communicate with the exhaust-chamber. In Fig. 6 (not shown) the contacts are arranged outside the reservoir, which has a cam-operated inletvalve, automatically-operable under fault-conditions.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE469806D BE469806A (en) | 1945-12-18 | ||
GB34216/45A GB605217A (en) | 1945-12-18 | 1945-12-18 | Improvements in or relating to gas-blast electric circuit-breakers |
US714598A US2454586A (en) | 1945-12-18 | 1946-12-06 | Gas-blast electric circuit breaker |
FR937821D FR937821A (en) | 1945-12-18 | 1946-12-10 | Improvements to electric circuit breakers with gas blowing |
CH261144D CH261144A (en) | 1945-12-18 | 1947-09-09 | Writing implement. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB34216/45A GB605217A (en) | 1945-12-18 | 1945-12-18 | Improvements in or relating to gas-blast electric circuit-breakers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB605217A true GB605217A (en) | 1948-07-19 |
Family
ID=10362837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB34216/45A Expired GB605217A (en) | 1945-12-18 | 1945-12-18 | Improvements in or relating to gas-blast electric circuit-breakers |
Country Status (5)
Country | Link |
---|---|
US (1) | US2454586A (en) |
BE (1) | BE469806A (en) |
CH (1) | CH261144A (en) |
FR (1) | FR937821A (en) |
GB (1) | GB605217A (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR866412A (en) * | 1940-04-06 | 1941-08-12 | Merlin Gerin | High voltage compressed gas switch |
US2558757A (en) * | 1947-07-19 | 1951-07-03 | Allis Chalmers Mfg Co | Multibreak gas blast circuit breaker with grounded operating motor |
US2668516A (en) * | 1947-09-09 | 1954-02-09 | Jovanovitsch Predrag | Writing device |
US2568008A (en) * | 1948-05-22 | 1951-09-18 | Allis Chalmers Mfg Co | High-voltage air blast circuit breaker having the blast valve arranged at line potential |
GB673598A (en) * | 1949-08-18 | 1952-06-11 | Asea Ab | Arrangement in electric high tension circuit breakers |
US2645697A (en) * | 1949-12-21 | 1953-07-14 | Gen Electric | Electric circuit breaker |
FR1034701A (en) * | 1949-12-21 | 1953-07-30 | ||
CH302697A (en) * | 1951-02-09 | 1954-10-31 | Asea Ab | Compressed air switch for high voltages. |
BE526782A (en) * | 1953-02-26 | |||
US2783337A (en) * | 1953-12-10 | 1957-02-26 | Gen Electric | Fluid blast circuit interrupter |
US2843706A (en) * | 1955-09-23 | 1958-07-15 | Gen Electric | Electric circuit breaker |
BE564098A (en) * | 1957-01-22 | |||
US2979591A (en) * | 1958-09-19 | 1961-04-11 | Westinghouse Electric Corp | Circuit interrupters |
GB960403A (en) * | 1959-06-02 | 1964-06-10 | English Electric Co Ltd | Improvements in or relating to electric circuit-breakers |
US3071671A (en) * | 1959-07-22 | 1963-01-01 | Westinghouse Electric Corp | Circuit interrupters |
GB1022291A (en) * | 1961-03-22 | 1966-03-09 | English Electric Co Ltd | Improvements in or relating to gas-blast electric circuit-breakers |
US3275778A (en) * | 1962-08-18 | 1966-09-27 | Mitsubishi Electric Corp | Compressed-gas circuit interrupter with pressurized arcing chamber and downstream blast valve |
US3454734A (en) * | 1965-09-22 | 1969-07-08 | Westinghouse Electric Corp | Compressed-gas circuit interrupter |
US3919511A (en) * | 1972-05-31 | 1975-11-11 | Siemens Ag | High-voltage apparatus such as a circuit breaker or the like equipped with means for preventing impairment of the electric field within the apparatus enclosure |
JPS5624972B2 (en) * | 1973-11-05 | 1981-06-09 | ||
DE3300979A1 (en) * | 1983-01-12 | 1984-07-12 | Siemens AG, 1000 Berlin und 8000 München | VACUUM SWITCH WITH TWO SWITCHING TUBES PER POL |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE690130C (en) * | 1933-10-20 | 1940-04-17 | Siemens Schuckertwerke Akt Ges | Switch with arc extinguishing by flowing or expanding gases or vapors |
-
0
- BE BE469806D patent/BE469806A/xx unknown
-
1945
- 1945-12-18 GB GB34216/45A patent/GB605217A/en not_active Expired
-
1946
- 1946-12-06 US US714598A patent/US2454586A/en not_active Expired - Lifetime
- 1946-12-10 FR FR937821D patent/FR937821A/en not_active Expired
-
1947
- 1947-09-09 CH CH261144D patent/CH261144A/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR937821A (en) | 1948-08-27 |
US2454586A (en) | 1948-11-23 |
BE469806A (en) | |
CH261144A (en) | 1949-04-30 |
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