GB1362904A - Gas-blast circuit-breaker - Google Patents

Gas-blast circuit-breaker

Info

Publication number
GB1362904A
GB1362904A GB1503772A GB1503772A GB1362904A GB 1362904 A GB1362904 A GB 1362904A GB 1503772 A GB1503772 A GB 1503772A GB 1503772 A GB1503772 A GB 1503772A GB 1362904 A GB1362904 A GB 1362904A
Authority
GB
United Kingdom
Prior art keywords
gas
valve
drive
rod
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
GB1503772A
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
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
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, BBC Brown Boveri France SA filed Critical BBC Brown Boveri AG Switzerland
Publication of GB1362904A publication Critical patent/GB1362904A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
    • 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
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
    • H01H33/302—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator for fluid insulated switchgear, wherein the insulating fluid is also the working fluid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)

Abstract

1362904 Gas-blast circuit-breakers BBC BROWN BOVERI & CO Ltd 30 March 1972 [2 April 1971] 15037/72 Heading H1N A gas-blast circuit-breaker has a contact member 8 moved alternately in opposite directions for its opening and closing operations by a gas-operated drive 9 which prepares for the next operation during each successive operation, a blast valve 12 to supply gas under pressure to the contacts 7, 8 and the drive 9 when open, an insulating rod 17 which permits the blast valve to open under gas pressure when released by a releasing device 23 . . . 25, and a system of levers 13 . . . 16, 10, 19 interconnecting the valve 12, rod 17 and drive 9 so that during each operation the drive 9 recloses the valve 12 and resets the releasing device 23 . . . 25. In the arrangement shown, the energization of a winding 25 causes the weakening of the field of a permanent magnet 24 to release an armature 23. The rod 17 with a crosshead 16 attached to it can now move up, so that the gas pressure acting on the blast valve 12 can open the valve 12. The contact 8 is now opened by pressure gas acting on the drive 9 which incorporates a slide valve which is moved into a position such as to reverse the flow of gas to the drive member for a subsequent reclosing operation. The contact 8 through linkage 10 turns a hollow shaft 11, which through a crank and a link 19 moves the central pivot of a two. armed lever 14 to close the blast valve 12 and to move the cross-head 16 down so that the armature 23 is again held by the magnet 23. The shaft 11 is connected at its lower end by linkage 26 to a rod 27 for indication and signalling the switch position. Rotation of the shaft is prevented by a locking pin 21 which is released by the cross-head 16 when the rod 17 is released by the device 23 . . . 25.
GB1503772A 1971-04-02 1972-03-30 Gas-blast circuit-breaker Expired GB1362904A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH481671A CH530086A (en) 1971-04-02 1971-04-02 Pressurized gas switch to which a pressurized gas pulse is fed to switch it off or on

Publications (1)

Publication Number Publication Date
GB1362904A true GB1362904A (en) 1974-08-07

Family

ID=4283042

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1503772A Expired GB1362904A (en) 1971-04-02 1972-03-30 Gas-blast circuit-breaker

Country Status (7)

Country Link
US (1) US3728507A (en)
JP (1) JPS5623252B1 (en)
CH (1) CH530086A (en)
DE (2) DE7116241U (en)
FR (1) FR2132165B1 (en)
GB (1) GB1362904A (en)
IT (1) IT950867B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1295375B1 (en) * 1997-10-21 1999-05-12 Sace Spa MEDIUM AND HIGH VOLTAGE GAS SWITCH WITH ARC EXTINGUISHING MEANS
BR112012020570A8 (en) * 2010-02-16 2017-12-19 Abb Schweiz Ag CLOSER POSITION INDICATOR

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB983502A (en) * 1960-03-23 1965-02-17 English Electric Co Ltd Improvements in or relating to gas-blast electric circuit-breakers
US3390239A (en) * 1965-02-23 1968-06-25 Gen Electric Electric circuit breaker with voltage-controlling resistances and means for switching the resistances in synchronism
GB1103007A (en) * 1965-08-25 1968-02-14 Giuseppe Scarpa Improvements relating to gas-blast circuit breakers

Also Published As

Publication number Publication date
FR2132165A1 (en) 1972-11-17
FR2132165B1 (en) 1975-06-20
DE2120566B2 (en) 1979-12-20
JPS5623252B1 (en) 1981-05-29
DE7116241U (en) 1973-01-18
DE2120566C3 (en) 1980-08-28
IT950867B (en) 1973-06-20
DE2120566A1 (en) 1972-10-05
US3728507A (en) 1973-04-17
CH530086A (en) 1972-10-31

Similar Documents

Publication Publication Date Title
US2574334A (en) Air-blast circuit breaker
US2292096A (en) Circuit-breaker operating system
US2578204A (en) Dumping valve for expediting reverse movements of fluid motors
US2972666A (en) Air blast circuit breakers with breaking gaps in compressed air containers carried by insulator pillars
GB1290386A (en)
GB1362904A (en) Gas-blast circuit-breaker
GB983501A (en) Improvements in or relating to gas-blast electric circuit-breakers
US3390240A (en) Circuit breaker with piston gas flow and selective synchronous operation
US2363283A (en) Circuit interrupter
US2025549A (en) Operating mechanism for electric circuit breakers
GB868000A (en) Improvements in or relating to circuit breakers
US4342891A (en) Circuit breaker with means for producing a flow of arc-extinguishing gas
GB552608A (en) Improvements in or relating to electric circuit interrupters of the fluid blast type
US2562147A (en) Circuit breaker operating device
US2230735A (en) Pneumatic reclosing mechanism for circuit breakers
US2411360A (en) Circuit breaker
US2441412A (en) Circuit breaker control system
GB1320448A (en) Circuit breaker with an actuating mechanism
US2681958A (en) Circuit breaker with blast valve actuated by a fluid motor and a spring
US2340095A (en) Fluid blast circuit breaker
US2580304A (en) Circuit breaker operation counter
US3257531A (en) Synchronized circuit interrupter with shunting impedance contacts
US3284732A (en) High-speed reclosing circuit breaker having releasable coupling means for connection with rotating mass
US2414522A (en) Gas blast circuit interrupter
US2676216A (en) Ground switch with twisting contact

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee