GB925341A - Improvements in and relating to circuit interrupter units - Google Patents

Improvements in and relating to circuit interrupter units

Info

Publication number
GB925341A
GB925341A GB31198/61A GB3119861A GB925341A GB 925341 A GB925341 A GB 925341A GB 31198/61 A GB31198/61 A GB 31198/61A GB 3119861 A GB3119861 A GB 3119861A GB 925341 A GB925341 A GB 925341A
Authority
GB
United Kingdom
Prior art keywords
cylinder
contact
oil
chamber
during
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
GB31198/61A
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.)
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
Original Assignee
Brown Boveri und Cie 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 Brown Boveri und Cie AG Switzerland, BBC Brown Boveri France SA filed Critical Brown Boveri und Cie AG Switzerland
Publication of GB925341A publication Critical patent/GB925341A/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
    • H01H33/92—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 liquid, e.g. oil
    • 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
    • H01H33/42—Driving mechanisms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Circuit Breakers (AREA)

Abstract

925,341. Oil-break switches. BROWN, BOVERI & CO. Ltd. Aug. 30, 1961 [Sept. 1, 1960], No. 31198/61. Class 38 (5). In a liquid-filled circuit-breaker the interrupter unit comprises a chamber enclosing the engaged resiliently-mounted fixed contact and co-operating moving contact which is solidly connected to a cylinder surrounding the chamber and movable with the contact so as to drive the liquid, preferably oil, into the contact chamber during contact opening movement. As shown, the nozzle-shaped moving contact 4 is connected by a cylinder 2a and a rod 13 to a cylinder 2 which surrounds the contact chamber 3 and co-operates with a body part 1 which acts as a fixed piston in the movable cylinder 2. During a circuit-breaking operation the contact 4 and cylinder 2 are moved down (as shown on the left-hand side of the Figure) by a rod 8 and a valve formed by the cylinder end 10 and a ring 6 is closed so that oil is driven along the arrowed path shown through the arc formed between contacts 2, 5. During a closing operation the valve 6, 10 is open, to an extent limited by stops 14, to allow oil to flow back into the cylinder 2.
GB31198/61A 1960-09-01 1961-08-30 Improvements in and relating to circuit interrupter units Expired GB925341A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH988260A CH384055A (en) 1960-09-01 1960-09-01 Switch with a flowing liquid as an extinguishing agent

Publications (1)

Publication Number Publication Date
GB925341A true GB925341A (en) 1963-05-08

Family

ID=4356691

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31198/61A Expired GB925341A (en) 1960-09-01 1961-08-30 Improvements in and relating to circuit interrupter units

Country Status (4)

Country Link
US (1) US3205331A (en)
CH (1) CH384055A (en)
GB (1) GB925341A (en)
NL (2) NL121859C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3378661A (en) * 1965-10-20 1968-04-16 Allis Chalmers Mfg Co Auxiliary contact structure with arc suppressing means
FR1537673A (en) * 1966-04-15 1968-09-07 Improvements made to circuit breakers
CH591756A5 (en) * 1975-06-18 1977-09-30 Bbc Brown Boveri & Cie

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE671326C (en) * 1937-10-16 1939-02-04 Voigt & Haeffner Akt Ges Switch with arc extinguishing by compressed air
US2442010A (en) * 1943-12-24 1948-05-25 Westinghouse Electric Corp Circuit interrupter
US2781435A (en) * 1951-03-18 1957-02-12 Heilmann Philipp Arc-extinguishing mechanism for electric switches
US2933575A (en) * 1956-10-22 1960-04-19 Westinghouse Electric Corp Circuit interrupters

Also Published As

Publication number Publication date
US3205331A (en) 1965-09-07
CH384055A (en) 1964-11-15
NL268023A (en)
NL121859C (en)

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