GB908686A - Improvements in air blast electric circuit breakers - Google Patents

Improvements in air blast electric circuit breakers

Info

Publication number
GB908686A
GB908686A GB6844/61A GB684461A GB908686A GB 908686 A GB908686 A GB 908686A GB 6844/61 A GB6844/61 A GB 6844/61A GB 684461 A GB684461 A GB 684461A GB 908686 A GB908686 A GB 908686A
Authority
GB
United Kingdom
Prior art keywords
contacts
cavity
chamber
passages
breaker
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
GB6844/61A
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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 ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB908686A publication Critical patent/GB908686A/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
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts
    • 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
    • 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
    • H01H33/80—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve
    • H01H33/82—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/80—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve
    • H01H33/82—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the fluid being air or gas
    • H01H33/83—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the fluid being air or gas wherein the contacts are opened by the flow of 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/86—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid under pressure from the contact space being controlled by a valve

Landscapes

  • Insulators (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

908,686. Air-blast switches. ALLMANNA SVENSKA ELEKTRISKA A.B. Feb. 24, 1961 [Feb. 25, 1960], No. 6844/61. Class 38 (5). An air-blast circuit-breaker having main contacts in a conductive compressed air chamber has a second pair of series contacts within a cavity in a bushing projecting into the chamber and carrying one of the first pair of contacts. As shown, a circuit-breaker similar to that described in Specification 838,041 has a main fixed contact 2 on the end of the bushing 9 and passages 15 which connect a cavity 14 with the exhaust passage 5 of the main moving contact 3. When the contacts 2, 3 separate, compressed air from the chamber 1 passes through passages 15 to the cavity 14 to act on a piston 12 and separate contacts 10, 11 which interrupt the residual current due to a resistor 18 in parallel with the contacts 2, 3. The separation of contacts 10, 11 opens an exhaust passage 16 in the contact 11 and this passage is closed again at the end of the contact movement by a gasket 17. When the contacts 2, 3 reclose the cavity 14 is again connected to the atmosphere by the passages 15, 5 so that the contacts 10, 11 reclose. This arrangement increases the distance between the conductive walls of the chamber 1 and the line portion 11 of the inner conductor when the circuit-breaker is open.
GB6844/61A 1960-02-25 1961-02-24 Improvements in air blast electric circuit breakers Expired GB908686A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE189460 1960-02-25

Publications (1)

Publication Number Publication Date
GB908686A true GB908686A (en) 1962-10-24

Family

ID=20259022

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6844/61A Expired GB908686A (en) 1960-02-25 1961-02-24 Improvements in air blast electric circuit breakers

Country Status (4)

Country Link
US (1) US3093717A (en)
CH (1) CH382828A (en)
DE (1) DE1163940B (en)
GB (1) GB908686A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2215133A (en) * 1988-02-23 1989-09-13 Mitsubishi Electric Corp Insulator-type gas circuit interrupter

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE625691A (en) * 1961-12-07
US3198916A (en) * 1962-11-29 1965-08-03 Ite Circuit Breaker Ltd Vented movable resistor contact for air blast circuit breakers
DE1244916B (en) * 1965-02-05 1967-07-20 Licentia Gmbh Circuit breaker with arc extinguishing by a flowing extinguishing agent
US3433913A (en) * 1965-07-28 1969-03-18 Westinghouse Electric Corp Gas-blast circuit interrupter
US3686454A (en) * 1968-09-16 1972-08-22 Lee E Berkebile Gas-blast circuit interrupter with primary and secondary blast valves

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2459600A (en) * 1944-12-14 1949-01-18 Westinghouse Electric Corp Compressed gas circuit interrupter
GB605163A (en) * 1945-12-17 1948-07-16 Reyrolle A & Co Ltd Improvements in or relating to gas-blast electric circuit-breakers
US2665351A (en) * 1951-02-09 1954-01-05 Asea Ab Arrangement in air blast circuit breaker provided with damping resistance
BE519814A (en) * 1952-05-31
GB764646A (en) * 1954-02-17 1956-12-28 Asea Ab Improvements in air blast electric circuit breakers
BE536110A (en) * 1954-03-02
GB824103A (en) * 1954-11-24 1959-11-25 Lewis Berger & Sons Ltd Improvements in or relating to the manufacture of copolymers of epoxide resin esters
BE568382A (en) * 1957-06-07
CH362447A (en) * 1957-06-29 1962-06-15 Asea Ab Compressed air switch with live containers carried by insulator columns, constantly filled with compressed air, in which the power disconnection points are arranged
GB884854A (en) * 1957-07-01 1961-12-20 Ass Elect Ind Improvements in air or gas blast electric circuit-breakers
DE1049954B (en) * 1957-09-12 1959-02-05
US3043940A (en) * 1958-01-10 1962-07-10 Westinghouse Electric Corp Compressed-gas circuit interrupter
CH357780A (en) * 1958-03-08 1961-10-31 Bbc Brown Boveri & Cie Circuit breaker with auxiliary breaking point
DE1063682B (en) * 1958-10-10 1959-08-20 Voigt & Haeffner Ag High-voltage compressed air switch with multiple interruptions per pole
NL126887C (en) * 1965-09-20

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2215133A (en) * 1988-02-23 1989-09-13 Mitsubishi Electric Corp Insulator-type gas circuit interrupter
GB2215133B (en) * 1988-02-23 1992-07-29 Mitsubishi Electric Corp Gas circuit interrupter.

Also Published As

Publication number Publication date
CH382828A (en) 1964-10-15
US3093717A (en) 1963-06-11
DE1163940B (en) 1964-02-27

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