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GB936545A - Air blast electric circuit breaker - Google Patents

Air blast electric circuit breaker

Info

Publication number
GB936545A
GB936545A GB35090/61A GB3509061A GB936545A GB 936545 A GB936545 A GB 936545A GB 35090/61 A GB35090/61 A GB 35090/61A GB 3509061 A GB3509061 A GB 3509061A GB 936545 A GB936545 A GB 936545A
Authority
GB
United Kingdom
Prior art keywords
piston
contact
space
valve
compressed air
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
GB35090/61A
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 GB936545A publication Critical patent/GB936545A/en
Priority claimed from SE7268/66A external-priority patent/SE308547B/xx
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
    • H01H3/52—Driving mechanisms, i.e. for transmitting driving force to the contacts with means to ensure stopping at intermediate operative positions
    • 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
    • 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7038—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by a conducting tubular gas flow enhancing nozzle
    • 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
    • H01H33/86—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

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Circuit Breakers (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

936,545. Air-blast switches. ALLMANNA SVENSKA ELEKTRISKA A.B. Sept. 29, 1961 [Dec. 15, 1960], No. 35090/61. Class 38 (5). An air-blast circuit-breaker having a contact chamber permanently filled with compressed air and a piston-driven nozzle moving contact has a throttled connection between the low pressure side of the piston and the contact chamber to control the contact movement. As shown, the nozzle movable contact 4 is connected to a piston 6, one side of which defines a space 8 connectable to the atmosphere or to the compressed air system. The space 7 above the piston is connected by a throttle 17 and a bypass non-return valve 18 with the compressed air container 1. When compressed air is supplied to the space 8 to equalize the pressures on the piston 6, the pressure difference at the contact 4, 11 overcomes the closing bias of a spring 12 to open the contacts and a valve 21 allows air to pass from the space 7 during initial piston movement. After the piston has passed the valve 21, the pressure in space 7 increases to check the contact movement which is completed as the pressure is equalized through the throttle 17. In Fig. 1 (not shown), the valve 21 is omitted and the throttle is part of the valve 18.
GB35090/61A 1960-12-15 1961-09-29 Air blast electric circuit breaker Expired GB936545A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1213760 1960-12-15
SE7268/66A SE308547B (en) 1966-05-27 1966-05-27

Publications (1)

Publication Number Publication Date
GB936545A true GB936545A (en) 1963-09-11

Family

ID=26654773

Family Applications (2)

Application Number Title Priority Date Filing Date
GB35090/61A Expired GB936545A (en) 1960-12-15 1961-09-29 Air blast electric circuit breaker
GB24603/67A Expired GB1178324A (en) 1960-12-15 1967-05-26 Improvements in Air Blast Electric Circuit Breakers.

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB24603/67A Expired GB1178324A (en) 1960-12-15 1967-05-26 Improvements in Air Blast Electric Circuit Breakers.

Country Status (4)

Country Link
US (2) US3118996A (en)
CH (2) CH398737A (en)
DE (2) DE1186126B (en)
GB (2) GB936545A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB936545A (en) * 1960-12-15 1963-09-11 Asea Ab Air blast electric circuit breaker
US3350528A (en) * 1964-09-04 1967-10-31 Ite Circuit Breaker Ltd Dual pressure gas circuit breaker having movable bridging contact connected to blast valve and cutoff valve which are upstream of the movable contact
US3371177A (en) * 1965-03-03 1968-02-27 Westinghouse Electric Corp Gas-blast circuit breaker with separable movable and isolating contacts
JPS4935951B1 (en) * 1968-12-30 1974-09-26
US3612799A (en) * 1969-05-08 1971-10-12 Ite Imperial Corp Gas blast circuit interrupter using main movable contact as blast valve
US3614357A (en) * 1969-05-08 1971-10-19 Ite Imperial Corp Gas blast circuit interrupter using main movable contact as blast valve
FR2676857B1 (en) * 1991-05-22 1994-04-08 Gec Alsthom Sa DEVICE FOR INSERTING A VARISTOR, INCORPORATED IN A HIGH VOLTAGE CIRCUIT BREAKER.

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR564384A (en) * 1922-03-30 1923-12-28 Thomson Houston Comp Francaise Improvements to oil switches
DE588693C (en) * 1928-10-02 1933-11-28 Sigwart Ruppel Dipl Ing Switch with arc extinguishing by compressed gas
DE529456C (en) * 1930-03-29 1931-07-13 Eberhard Koch Call repeater with self-interruption for direct and alternating current
DE599314C (en) * 1932-03-16 1934-07-30 Bbc Brown Boveri & Cie Switch with arc extinguishing by flowing compressed gas
FR866412A (en) * 1940-04-06 1941-08-12 Merlin Gerin High voltage compressed gas switch
NL187108C (en) * 1953-04-28 Fogautolube Sa CATCH DEVICE FOR A LIFTING DEVICE WITH CABLES, ESPECIALLY A CAR LIFTING BRIDGE.
GB764647A (en) * 1954-02-17 1956-12-28 Asea Ab Improvements in air blast electric circuit breakers
DE1041569B (en) * 1955-10-05 1958-10-23 Asea Ab Compressed air switch
US2881291A (en) * 1955-12-15 1959-04-07 Asea Ab Air blast circuit breaker
GB806232A (en) * 1956-04-14 1958-12-23 Asea Ab Improvements in electric air blast circuit breakers
BE557909A (en) * 1956-07-10 Merlin Gerin
US2922010A (en) * 1956-12-20 1960-01-19 Westinghouse Electric Corp Circuit interrupters
GB936545A (en) * 1960-12-15 1963-09-11 Asea Ab Air blast electric circuit breaker

Also Published As

Publication number Publication date
CH462283A (en) 1968-09-15
US3524954A (en) 1970-08-18
DE1186126B (en) 1965-01-28
US3118996A (en) 1964-01-21
DE1263895B (en) 1968-03-21
CH398737A (en) 1966-03-15
GB1178324A (en) 1970-01-21

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