GB1272388A - Gas blast circuit breaker - Google Patents

Gas blast circuit breaker

Info

Publication number
GB1272388A
GB1272388A GB33360/70A GB3336070A GB1272388A GB 1272388 A GB1272388 A GB 1272388A GB 33360/70 A GB33360/70 A GB 33360/70A GB 3336070 A GB3336070 A GB 3336070A GB 1272388 A GB1272388 A GB 1272388A
Authority
GB
United Kingdom
Prior art keywords
contact
gas blast
gas
blast circuit
circuit 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
GB33360/70A
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 GB1272388A publication Critical patent/GB1272388A/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
    • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
    • H01H3/605—Mechanical arrangements for preventing or damping vibration or shock making use of a fluid damper

Abstract

1,272,388. Gas blast circuit breakers. BROWN, BOVERI & CO. Ltd. 9 July, 1970 [11 July, 1969], No. 33360/70. Heading H1N. A gas blast circuit breaker has a movable nozzle contact 1 operated from a closed position to an open position, against spring 2, pressure, by a high pressure gas blast, and has two pneumatic damping chambers 6 and 12 acting to retard the contact opening and closing movements respectively. Piston 4 forming part of the movable contact 1 slides within the chamber 6 and compresses during the contact opening operation the high pressure gas within, introduced via passage 7. Piston 10 is engaged by a shoulder of the moving contact and compresses gas; introduced into chamber 12 via passage 13, during the closing operation of the contacts. Throttling parts 8 and 11 are provided between respective chambers and low pressure regions. A spring 15 damps the vibrations caused by the opening operation.
GB33360/70A 1969-07-11 1970-07-09 Gas blast circuit breaker Expired GB1272388A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691935298 DE1935298A1 (en) 1969-07-11 1969-07-11 Switching chamber for gas pressure switch with pulsed switching pieces

Publications (1)

Publication Number Publication Date
GB1272388A true GB1272388A (en) 1972-04-26

Family

ID=5739565

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33360/70A Expired GB1272388A (en) 1969-07-11 1970-07-09 Gas blast circuit breaker

Country Status (5)

Country Link
US (1) US3671698A (en)
CH (1) CH501991A (en)
DE (1) DE1935298A1 (en)
FR (1) FR2054324A5 (en)
GB (1) GB1272388A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2711950B1 (en) * 2012-09-25 2016-03-23 ABB Technology Ltd Actuator for a tap changer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB946210A (en) * 1959-06-05 1964-01-08 Reyrolle A & Co Ltd Improvements relating to gas-blast electric circuit-breakers
US3277263A (en) * 1962-10-29 1966-10-04 Hitachi Ltd Resistance contact device for air-blast circuit breakers
CH403011A (en) * 1963-10-17 1965-11-30 Bbc Brown Boveri & Cie Device for the control of outlet valves in gas pressure switches
DE1490715A1 (en) * 1964-12-10 1969-09-18 Sachsenwerk Licht & Kraft Ag Low-liquid electrical circuit breaker
CH428928A (en) * 1965-11-02 1967-01-31 Bbc Brown Boveri & Cie Device on a diverter switch of a tap changer for regulating transformers

Also Published As

Publication number Publication date
DE1935298A1 (en) 1971-01-14
FR2054324A5 (en) 1971-04-16
US3671698A (en) 1972-06-20
CH501991A (en) 1971-01-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees