GB1049497A - Improvements in and relating to gas blast circuit breakers - Google Patents

Improvements in and relating to gas blast circuit breakers

Info

Publication number
GB1049497A
GB1049497A GB42073/64A GB4207364A GB1049497A GB 1049497 A GB1049497 A GB 1049497A GB 42073/64 A GB42073/64 A GB 42073/64A GB 4207364 A GB4207364 A GB 4207364A GB 1049497 A GB1049497 A GB 1049497A
Authority
GB
United Kingdom
Prior art keywords
contact
gas
blast
valve member
valve
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
GB42073/64A
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 GB1049497A publication Critical patent/GB1049497A/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
    • H01H33/80—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
    • H01H33/02—Details
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H01H33/56—Gas reservoirs

Landscapes

  • Circuit Breakers (AREA)

Abstract

1,049,497. Gas blast switches. BROWN, BOVERI & CO. Ltd. Oct. 15, 1964 [Oct. 17, 1963], No. 42073/64. Heading H2B. In a gas blast circuit breaker of the kind having two nozzle contacts 1, 2 separable in a chamber permanently filled with compressed gas and each associated with an outlet blast valve, the nominally fixed contact 2 is resiliently mounted and its follow-up action is employed to operate the associated blast valve obviating the need for transmission pipes or rods between the contacts and reducing the chance of creepage currents. As contact 1 is drawn upwards by a conventional linkage (not shown) contact 2 follows under the action of a spring 22 and the resultant internal gas pressure acting on a valve member 4. As the member 4 rises away from seat 10 a blast of gas escapes through an outlet 6a. In its upper position an abutment 4c on member 4 drives a valve member 20 upwards cutting off chamber 21 from channels 14a, 12 and outlet 6a and connects it through channels 15, 14b and 5a to the high pressure gas in the contact chamber 27 which drives valve member 4 back to the position shown. Towards the end of this last movement a ring 25 on member 4 draws the contact 2 back downwards to increase the gap, a damping piston 24 preventing rebound. During reclosure of the contacts, contact 1 drives contact 2 and thus valve member 20 back to the position shown.
GB42073/64A 1963-10-17 1964-10-15 Improvements in and relating to gas blast circuit breakers Expired GB1049497A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1275063A CH403011A (en) 1963-10-17 1963-10-17 Device for the control of outlet valves in gas pressure switches

Publications (1)

Publication Number Publication Date
GB1049497A true GB1049497A (en) 1966-11-30

Family

ID=4386046

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42073/64A Expired GB1049497A (en) 1963-10-17 1964-10-15 Improvements in and relating to gas blast circuit breakers

Country Status (4)

Country Link
US (1) US3286066A (en)
AT (1) AT258397B (en)
CH (1) CH403011A (en)
GB (1) GB1049497A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH410108A (en) * 1964-05-25 1966-03-31 Bbc Brown Boveri & Cie Gas pressure switch
GB1180267A (en) * 1967-08-18 1970-02-04 English Electric Co Ltd Gas-Blast Electric Circuit Breaker
US3686454A (en) * 1968-09-16 1972-08-22 Lee E Berkebile Gas-blast circuit interrupter with primary and secondary blast valves
US3725623A (en) * 1968-10-28 1973-04-03 Westinghouse Electric Corp Gas-blast downstream-type of high-voltage circuit breaker having field-controlling shields and single venting movable contact
DE1935298A1 (en) * 1969-07-11 1971-01-14 Bbc Brown Boveri & Cie Switching chamber for gas pressure switch with pulsed switching pieces
US4105881A (en) * 1976-07-29 1978-08-08 Westinghouse Electric Corp. Circuit breaker apparatus with static pressure lock
US4715526A (en) * 1986-11-20 1987-12-29 General Dynamics, Pomona Division Floating seal and method of its use

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE25631E (en) * 1951-02-09 1964-08-18 Air blast circuit breaker

Also Published As

Publication number Publication date
CH403011A (en) 1965-11-30
AT258397B (en) 1967-11-27
US3286066A (en) 1966-11-15

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