GB1294063A - Gas-blast circuit breaker - Google Patents

Gas-blast circuit breaker

Info

Publication number
GB1294063A
GB1294063A GB1788171A GB1788171A GB1294063A GB 1294063 A GB1294063 A GB 1294063A GB 1788171 A GB1788171 A GB 1788171A GB 1788171 A GB1788171 A GB 1788171A GB 1294063 A GB1294063 A GB 1294063A
Authority
GB
United Kingdom
Prior art keywords
contact
gas
contacts
during
gas blast
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
Application number
GB1788171A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
Brown Boveri und Cie AG Switzerland
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BBC Brown Boveri AG Switzerland, Brown Boveri und Cie AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of GB1294063A publication Critical patent/GB1294063A/en
Expired legal-status Critical Current

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
    • H01H33/91—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 the arc-extinguishing fluid being air or gas
    • 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
    • H01H33/045—Means for extinguishing or preventing arc between current-carrying parts for arcs formed during closing

Abstract

1294063 Gas blast circuit breakers BROWN BOVERI & CO Ltd 28 May 1971 [24 June 1970] 17881/71 Heading H1N A gas blast circuit-breaker has nozzle contacts 3 and 9 and a piston-cylinder arrangement 7, 17 which compresses gas, e.g. SF 6 , during the breaking operation and which provides the gas blast when the nozzle contacts are momentarily held at an intermediate position, a suitable distance apart. The contacts are opened and closed by lowering and raising cylinder assembly 7 on support members 8. As the contact 9 moves down, the abutment 12b of the insulating member 12, which is held in engagement with housing 2 by the gas pressure, momentarily supports the ridge 9b of the contact 9, this being the intermediate arcing quenching position, Fig. 2 (not shown). The nozzle contact 3 is biased towards contact 9 by spring 4 and during the initial opening, moves with contact 9 until flange 100 engages surface 101 on the housing 2. The breaker has a fixed main contact 5 engaging, in the closed position, main contact 6 associated with a compression spring 13 and insulating sleeve 12. During the closing operation, fixed piston 18 and relatively sliding cylinder wall 7b provide a gas pressure build-up which provides a gas blast before the contacts make.
GB1788171A 1970-06-24 1971-05-28 Gas-blast circuit breaker Expired GB1294063A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH952070A CH517371A (en) 1970-06-24 1970-06-24 Electric compression switch

Publications (1)

Publication Number Publication Date
GB1294063A true GB1294063A (en) 1972-10-25

Family

ID=4352842

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1788171A Expired GB1294063A (en) 1970-06-24 1971-05-28 Gas-blast circuit breaker

Country Status (4)

Country Link
CH (1) CH517371A (en)
DE (2) DE2043744C3 (en)
FR (1) FR2099836A5 (en)
GB (1) GB1294063A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2529623A1 (en) * 1975-07-03 1977-01-20 Licentia Gmbh ELECTRIC COMPRESSION SWITCH
CH622377A5 (en) * 1977-12-12 1981-03-31 Sprecher & Schuh Ag
CH642481A5 (en) * 1979-11-22 1984-04-13 Sprecher & Schuh Ag EXHAUST GAS SWITCH.
US4327263A (en) * 1980-06-17 1982-04-27 Mitsubishi Denke Kabushiki Kaisha Switching device
FR2558299B1 (en) * 1984-01-13 1987-03-20 Alsthom Atlantique HIGH VOLTAGE CIRCUIT BREAKER WITH ARC BLOWING
FR2563372B1 (en) * 1984-04-24 1988-02-26 Alsthom Atlantique HIGH VOLTAGE CIRCUIT BREAKER WITH ARC BLOWING
DE3618345A1 (en) * 1986-05-30 1987-12-03 Siemens Ag Electrical gas-blast circuit breaker
DE3722541A1 (en) * 1987-07-08 1989-01-19 Licentia Gmbh Autopneumatic gas-blast circuit breaker

Also Published As

Publication number Publication date
DE2043744A1 (en) 1971-12-30
DE2043744C3 (en) 1980-11-27
DE7032905U (en) 1974-06-12
FR2099836A5 (en) 1972-03-17
CH517371A (en) 1971-12-31
DE2043744B2 (en) 1980-03-27

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee