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GB1178324A - Improvements in Air Blast Electric Circuit Breakers. - Google Patents

Improvements in Air Blast Electric Circuit Breakers.

Info

Publication number
GB1178324A
GB1178324A GB24603/67A GB2460367A GB1178324A GB 1178324 A GB1178324 A GB 1178324A GB 24603/67 A GB24603/67 A GB 24603/67A GB 2460367 A GB2460367 A GB 2460367A GB 1178324 A GB1178324 A GB 1178324A
Authority
GB
United Kingdom
Prior art keywords
piston
contact
plate
pistons
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
GB24603/67A
Inventor
Olaf Eliasson
Karl Gustav Sindahl
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
Priority claimed from SE7268/66A external-priority patent/SE308547B/xx
Application filed by ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB1178324A publication Critical patent/GB1178324A/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
    • H01H3/32—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

1,178,324. Air-blast switches. ALLMANNA SVENSKA ELEKTRISKA A.B. 26 May, 1967 [27 May, 1966], No. 24603/67. Addition to 936,545. Heading H1N. In an air-blast circuit-breaker as described in the parent Specification the throttled connection 13 between the low pressure space 7 at one side of the piston 6 and the contact chamber (not shown) has a damping piston 31 which passes through a hole 35 in a plate 32 to slow the movement of the piston 8 when the movable contact (Fig. 1, not shown) has reached a distance from its co-operating fixed contact that is favourable for arc extinction. A second damping piston 40 enters the hole 35 toward the end of the movement of the piston 8 to limit contact bounce. When the piston 8 is moved to close the contacts the plate 32 can move to expose vent holes 36 so that the pistons 31, 40 do not delay the contact closure. In Fig. 3 (not shown), the connection 13 is in the piston 8 which carries the plate 32 for co-operation with pistons 31, 40 on a rod 33 attached to the wall of the main cylinder.
GB24603/67A 1960-12-15 1967-05-26 Improvements in Air Blast Electric Circuit Breakers. Expired GB1178324A (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
GB1178324A true GB1178324A (en) 1970-01-21

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 Before (1)

Application Number Title Priority Date Filing Date
GB35090/61A Expired GB936545A (en) 1960-12-15 1961-09-29 Air blast electric circuit breaker

Country Status (4)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0515268A1 (en) * 1991-05-22 1992-11-25 Gec Alsthom Sa Varistor insertion device incorporated in an H.T. circuit breaker

Families Citing this family (6)

* 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
US3614357A (en) * 1969-05-08 1971-10-19 Ite Imperial Corp Gas blast circuit interrupter using main movable contact as blast valve
US3612799A (en) * 1969-05-08 1971-10-12 Ite Imperial Corp Gas blast circuit interrupter using main movable contact as blast valve

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0515268A1 (en) * 1991-05-22 1992-11-25 Gec Alsthom Sa Varistor insertion device incorporated in an H.T. circuit breaker
FR2676857A1 (en) * 1991-05-22 1992-11-27 Alsthom Gec DEVICE FOR INSERTING A VARISTOR, INCORPORATED IN A HIGH VOLTAGE CIRCUIT BREAKER.
US5264671A (en) * 1991-05-22 1993-11-23 Gec Alsthom Sa Varistor inserter device for a high-voltage circuit-breaker

Also Published As

Publication number Publication date
DE1263895B (en) 1968-03-21
DE1186126B (en) 1965-01-28
US3118996A (en) 1964-01-21
US3524954A (en) 1970-08-18
CH398737A (en) 1966-03-15
GB936545A (en) 1963-09-11
CH462283A (en) 1968-09-15

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