GB858791A - Improvements in or relating to gas blast electric circuit interrupters - Google Patents
Improvements in or relating to gas blast electric circuit interruptersInfo
- Publication number
- GB858791A GB858791A GB7513/59A GB751359A GB858791A GB 858791 A GB858791 A GB 858791A GB 7513/59 A GB7513/59 A GB 7513/59A GB 751359 A GB751359 A GB 751359A GB 858791 A GB858791 A GB 858791A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- piston
- gas
- lost
- motion
- 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
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
- H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
- H01H33/901—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism making use of the energy of the arc or an auxiliary arc
- H01H33/903—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism making use of the energy of the arc or an auxiliary arc and assisting the operating mechanism
Landscapes
- Circuit Breakers (AREA)
Abstract
858,791. Gas-blast switches. WESTING- HOUSE ELECTRIC CORPORATION. March 4, 1959 [March 7, 1958], No. 7513/59. Class 38 (5). In a gas-blast circuit-interrupter having a pumping cylinder in the arcing chamber, the differential piston thereof has a lost-motion connection with the moving contact which has a passage venting into an orifice passage in the piston when the contacts are closed and which is closed after the lost-motion has been taken-up during contact separation. The interrupter housing, which preferably contains sulphur hexafluoride, comprises two cylindrical insulators 2, 3 secured and sealed to a base 27, connector plates 6 and 19 and a cap 17. The moving contact 7 passes through an opening 8 in a boss 59 on the plate 6, and the boss has threaded thereto an insulating cylinder 57 which receives one end of the differential piston 54. The piston has lost-motion on the end of the contact 7 limited by a recess 63, and its larger end is provided with a piston-ring 61 engaging the inner wall 60 of the insulator 2. A bracket 10 on the cap 17 supports the fixed contact 9 which is biased towards the moving contact by a spring 11. When the contact 7 is moved downward the contact 9 moves with it initially but the piston 54 is not moved until the lost-motion 63 is taken up. The contact 7 and piston 54 then move together and under heavy current conditions the pressure on the upper large surface 55 of the piston due to the arc assists the external operating-mechanism in compressing the gas in the cylinder 57 which is forced through passages 65 to the arcing region 52. A valve 70 is provided so that the gas in the cylinder 2 does not oppose its movement when light currents are being interrupted. Passages 49, 50, 51 in the contact 7 are sealed by the piston when the contact is moved downward but during closing movement they are opened and allow gas to flow. The plate 6 is connected to the contact 7 by rollers as described in Specification 847,968, and the contact is moved by links 34, 38, the former carrying rollers 35 in slots 36 in the base 27 and the latter being keyed to a shaft 39 rotatable by an arm 40 outside the interrupter. Specification 736,090 also is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US719892A US2957063A (en) | 1958-03-07 | 1958-03-07 | Pumped-gas circuit interrupter |
Publications (1)
Publication Number | Publication Date |
---|---|
GB858791A true GB858791A (en) | 1961-01-18 |
Family
ID=24891800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7513/59A Expired GB858791A (en) | 1958-03-07 | 1959-03-04 | Improvements in or relating to gas blast electric circuit interrupters |
Country Status (4)
Country | Link |
---|---|
US (1) | US2957063A (en) |
CH (1) | CH368535A (en) |
DE (1) | DE1130028B (en) |
GB (1) | GB858791A (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1210473B (en) * | 1961-07-20 | 1966-02-10 | Westinghouse Electric Corp | Circuit breaker |
US3218420A (en) * | 1961-10-04 | 1965-11-16 | Asea Ab | Arc-extinguishing circuit breaker with enclosed gas space |
FR2050727A5 (en) * | 1969-06-23 | 1971-04-02 | Latour Andre | |
FR2079896A5 (en) * | 1970-02-16 | 1971-11-12 | Merlin Gerin | |
CH524886A (en) * | 1970-12-01 | 1972-06-30 | Bbc Brown Boveri & Cie | Electric compression switch |
CH600538A5 (en) * | 1976-04-22 | 1978-06-15 | Bbc Brown Boveri & Cie | |
CA1109511A (en) * | 1977-06-27 | 1981-09-22 | Masami Kii | Gas-type circuit breaker comprising means to boost arc chamber gas pressure |
DE2909270C2 (en) * | 1979-03-09 | 1985-07-18 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Auto-pneumatic pressure gas switch |
DE3065575D1 (en) * | 1980-03-10 | 1983-12-22 | Sprecher & Schuh Ag | Gas-blast circuit breaker |
CH654138A5 (en) * | 1981-06-30 | 1986-01-31 | Sprecher & Schuh Ag | HIGH VOLTAGE CIRCUIT BREAKERS. |
FR2641409B1 (en) * | 1989-01-02 | 1996-04-26 | Alsthom Gec | HIGH AND MEDIUM VOLTAGE CIRCUIT BREAKER WITH SUPPLY GAS |
FR2646013B1 (en) * | 1989-04-17 | 1996-02-23 | Alsthom Gec | MEDIUM VOLTAGE CIRCUIT BREAKER |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR696259A (en) * | 1929-09-11 | 1930-12-29 | Alsthom Cgee | Further development of electric switches operating in gas |
BE378023A (en) * | 1930-03-10 | |||
DE651169C (en) * | 1934-07-20 | 1937-10-08 | Studiengesellschaft Fuer Hochl | Fluid switch, in which a pump piston driven by the movable contact causes a fluid flow within a deletion chamber |
DE637075C (en) * | 1934-10-06 | 1936-10-21 | Studiengesellschaft Fuer Hochl | Oil switch with small oil quantity for high performance |
DE655479C (en) * | 1935-04-14 | 1938-01-17 | Studiengesellschaft Fuer Hochl | Fire chamber switch with valve-controlled outlet opening |
FR810720A (en) * | 1935-12-12 | 1937-03-27 | Alsthom Cgee | Improvements to arc blow switches using insulating liquid jets |
DE726619C (en) * | 1937-04-16 | 1942-10-16 | Stalturbine G M B H | Electric switch |
DE679232C (en) * | 1937-09-01 | 1939-08-01 | Studiengesellschaft Fuer Hochl | Compressed air switch |
US2246171A (en) * | 1938-01-10 | 1941-06-17 | Gen Electric | Method of and apparatus for interrupting electric arcs |
DE697904C (en) * | 1938-01-10 | 1940-10-29 | Aeg | Electric high-voltage switch with arc extinguishing in a closed case |
DE675370C (en) * | 1938-05-24 | 1939-05-06 | Studiengesellschaft Fuer Hochl | Pressure gas switch with differential piston |
DE710178C (en) * | 1940-05-04 | 1941-09-05 | Studiengesellschaft Fuer Hochl | Compressed gas switch with a differential pump piston built into the switch housing |
US2442010A (en) * | 1943-12-24 | 1948-05-25 | Westinghouse Electric Corp | Circuit interrupter |
US2459599A (en) * | 1944-09-20 | 1949-01-18 | Westinghouse Electric Corp | Circuit interrupter |
US2572406A (en) * | 1948-09-02 | 1951-10-23 | Stulz Charles | High-voltage oil circuit breaker |
US2666118A (en) * | 1950-06-29 | 1954-01-12 | Westinghouse Electric Corp | Circuit interrupter |
US2781435A (en) * | 1951-03-18 | 1957-02-12 | Heilmann Philipp | Arc-extinguishing mechanism for electric switches |
US2757261A (en) * | 1951-07-19 | 1956-07-31 | Westinghouse Electric Corp | Circuit interrupters |
-
1958
- 1958-03-07 US US719892A patent/US2957063A/en not_active Expired - Lifetime
-
1959
- 1959-02-25 DE DEW25108A patent/DE1130028B/en active Pending
- 1959-03-04 GB GB7513/59A patent/GB858791A/en not_active Expired
- 1959-03-05 CH CH7041559A patent/CH368535A/en unknown
Also Published As
Publication number | Publication date |
---|---|
US2957063A (en) | 1960-10-18 |
CH368535A (en) | 1963-04-15 |
DE1130028B (en) | 1962-05-24 |
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