GB1477711A - Electric circuit breaker - Google Patents
Electric circuit breakerInfo
- Publication number
- GB1477711A GB1477711A GB4029874A GB4029874A GB1477711A GB 1477711 A GB1477711 A GB 1477711A GB 4029874 A GB4029874 A GB 4029874A GB 4029874 A GB4029874 A GB 4029874A GB 1477711 A GB1477711 A GB 1477711A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- contacts
- nozzle
- gas
- arc
- 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
- H01H33/98—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being initiated by an auxiliary arc or a section of the arc, without any moving parts for producing or increasing the flow
- H01H33/982—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being initiated by an auxiliary arc or a section of the arc, without any moving parts for producing or increasing the flow in which the pressure-generating arc is rotated by a magnetic field
Landscapes
- Circuit Breakers (AREA)
Abstract
1477711 Gas blast circuit breakers BROWN BOVERI & CIE AG 16 Sept 1974 [1 Oct 1973] 40298/74 Heading H1N A gas-blast circuit breaker with a nozzle movable contact has secondary contact means arranged on contact opening to produce a rotating secondary arc which increases the temperature and pressure within a gas filled quenching chamber in which the main contacts separate. In the Fig. 1 arrangement, as the main movable nozzle contact 13 is moved to the right, to open the contacts the movable secondary contact assembly 12, 6, 7, 8, 9 moves with it under the influence of a bias spring 11 and a secondary arc rotates between the wound turns of electrodes 56 to produce temperature and pressure increases in the gas (preferably SF 6 ) within a chamber 1. When the secondary contact assembly engages a plate 15c the main contacts 12, 13 separate and the gas is forced through radial ducts 15b into the nozzle contact 13 across the arc formed between the main contacts. In the Fig. 4 arrangement the secondary contacts 47, 50 seperate before the main nozzle contacts 43, 45 and the arc between contact 50 and extension 49 of contact 47 rotates within the chamber 40 to increase the temperature and pressure before the main contacts separate. In the Fig. 6 arrangement the resiliently mounted. fixed contact 61 moves with the nozzle contact 62 whilst secondary contacts 67, 68 separate to produce a rotating arc. The contact 61 may also be a nozzle contact (Figs. 8 and 9, not shown).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732349246 DE2349246A1 (en) | 1973-10-01 | 1973-10-01 | ELECTRIC SWITCH |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1477711A true GB1477711A (en) | 1977-06-22 |
Family
ID=5894220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4029874A Expired GB1477711A (en) | 1973-10-01 | 1974-09-16 | Electric circuit breaker |
Country Status (6)
Country | Link |
---|---|
CH (1) | CH583456A5 (en) |
DE (1) | DE2349246A1 (en) |
FR (1) | FR2246966B1 (en) |
GB (1) | GB1477711A (en) |
IT (1) | IT1019442B (en) |
NL (1) | NL7412435A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH641592A5 (en) * | 1977-03-24 | 1984-02-29 | Mitsubishi Electric Corp | ELECTRIC CIRCUIT BREAKER WITH ARM EXTINGUISHING CHAMBER. |
DE7740357U1 (en) | 1977-12-30 | 1980-11-13 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Gas switch |
FR2459543A1 (en) * | 1979-06-15 | 1981-01-09 | Alsthom Cgee | HIGH VOLTAGE CIRCUIT BREAKER WITH ROTATING ARC AND SELF-BLOWING |
JPS5923605B2 (en) * | 1980-03-28 | 1984-06-04 | 日新電機株式会社 | Gas cutter |
CH662443A5 (en) * | 1983-10-28 | 1987-09-30 | Bbc Brown Boveri & Cie | EXHAUST GAS SWITCH. |
CN102543553A (en) * | 2011-12-09 | 2012-07-04 | 沈阳工业大学 | SF6 circuit-breaker gyromagnetic air compression type arc extinguishing chamber structure |
-
1973
- 1973-10-01 DE DE19732349246 patent/DE2349246A1/en active Pending
-
1974
- 1974-09-16 GB GB4029874A patent/GB1477711A/en not_active Expired
- 1974-09-20 NL NL7412435A patent/NL7412435A/en not_active Application Discontinuation
- 1974-09-27 CH CH1308274A patent/CH583456A5/xx not_active IP Right Cessation
- 1974-09-30 IT IT5327974A patent/IT1019442B/en active
- 1974-09-30 FR FR7432933A patent/FR2246966B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2349246A1 (en) | 1975-04-03 |
NL7412435A (en) | 1975-04-03 |
CH583456A5 (en) | 1976-12-31 |
FR2246966B1 (en) | 1978-05-05 |
FR2246966A1 (en) | 1975-05-02 |
IT1019442B (en) | 1977-11-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |