GB1081080A - Gas-blast circuit breaker - Google Patents

Gas-blast circuit breaker

Info

Publication number
GB1081080A
GB1081080A GB50323/65A GB5032365A GB1081080A GB 1081080 A GB1081080 A GB 1081080A GB 50323/65 A GB50323/65 A GB 50323/65A GB 5032365 A GB5032365 A GB 5032365A GB 1081080 A GB1081080 A GB 1081080A
Authority
GB
United Kingdom
Prior art keywords
valves
contact
breaker
tank
open
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
GB50323/65A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1081080A publication Critical patent/GB1081080A/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
    • H01H33/02—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
    • 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
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
    • H01H33/32—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator pneumatic

Landscapes

  • Circuit Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

1,081,080. Gas blast switches. WESTING- HOUSE ELECTRIC CORPORATION. Nov. 26, 1965 [Dec. 17, 1964], No. 50323/65. Heading H2B. A circuit breaker comprises a tank 2 containing SF 6 at relatively low pressure (40 p.s.i.); a reservoir 3, 4 containing SF 6 at high pressure (230 p.s.i.); an arc chamber 21 located in the tank and containing the fixed contact 22; a moving contact 24 together with an operating cylinder 26 also in the tank; and a blast valve A controlling the flow of extinguishing gas from the reservoir to the arc chamber 21. Cylinder 26 is fed with high pressure gas through valves B or C to open or close the contacts. A latch 37 is arranged to hold the contact 24 in the open or closed position without preventing it being moved by the operating cylinder. A cam surface 53 on the contact 24 operates valve D or E to open or close auxiliary contacts 56, 57. The valves A, B, C are controlled by electromagnetically operated pilot valves A<SP>1</SP>, B<SP>1</SP>, C<SP>1</SP> respectively. Valve C<SP>1</SP> is energized by a pushbutton CSC to close the breaker. Valves B, A can then be energized through the auxiliary contacts 57 to open the breaker and initiate the blast by means of push-button CST or a protective relay PR. The breaker contact assemblies are supported on bushed conductors 15 surrounded by current transformers 14 and potential tapping cylinders 16. In a modification (Figs. 2, 3, not shown) latch 37 is replaced by a pneumatically withdrawn latch which positively holds the contact in its closed position. A three-phase breaker may have three tanks 2. and have common control valves A<SP>1</SP>, B<SP>1</SP>, C<SP>1</SP>. In an alternative form (Figs. 4-7, not shown) a three-phase breaker employing common valves A, B, C as well and having the contacts coupled together by insulating rods (61) is mounted in a single tank. In a modification (Fig. 8, not shown) the current transformers (14<SP>1</SP>) are mounted inside cylindrical extensions (11<SP>1</SP>) of the tank. The arc chamber 21 is of P.T.F.E.
GB50323/65A 1964-12-17 1965-11-26 Gas-blast circuit breaker Expired GB1081080A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US419044A US3379849A (en) 1964-12-17 1964-12-17 Dual-pressure gas-blast circuit breaker with piston means and interrupting unit in closed tank

Publications (1)

Publication Number Publication Date
GB1081080A true GB1081080A (en) 1967-08-31

Family

ID=23660564

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50323/65A Expired GB1081080A (en) 1964-12-17 1965-11-26 Gas-blast circuit breaker

Country Status (6)

Country Link
US (1) US3379849A (en)
AT (1) AT256239B (en)
BE (1) BE673742A (en)
CH (1) CH441471A (en)
DE (1) DE1590997B2 (en)
GB (1) GB1081080A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5077761U (en) * 1974-05-02 1975-07-05

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6110407Y2 (en) * 1978-01-06 1986-04-03
FR2663780B1 (en) * 1990-06-26 1992-09-11 Merlin Gerin HIGH VOLTAGE CIRCUIT BREAKER WITH GAS INSULATION AND PNEUMATIC CONTROL MECHANISM.
AU648601B2 (en) * 1991-11-01 1994-04-28 Schneider Electric Sa High-voltage circuit breaker with gas insulation and pneumatic operating mechanism
DE102006058042A1 (en) * 2006-12-07 2008-06-19 Abb Technology Ag Contact drive arrangement
EP2648202A1 (en) * 2012-04-05 2013-10-09 ABB Technology AG Circuit breaker
CN114019362B (en) * 2021-11-04 2024-04-19 华北电力大学 Composite fault real-time simulation system based on relay protection tester

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE533574C (en) * 1929-08-17 1931-09-16 Aeg Single or multi-phase switch composed of individual switches, operated by compressed air, in which the contacts are blown with compressed air when switching to suppress arcs
DE646847C (en) * 1934-02-08 1937-06-23 Elektrowerke Akt Ges Electric switch with arc extinguishing by flowing pressurized gas
GB517622A (en) * 1938-08-02 1940-02-05 Reyrolle A & Co Ltd Improvements in or relating to electric circuit-breakers having arc-control devices
GB983501A (en) * 1960-03-23 1965-02-17 English Electric Co Ltd Improvements in or relating to gas-blast electric circuit-breakers
CH385976A (en) * 1960-10-26 1964-12-31 Bbc Brown Boveri & Cie Short-circuit limiting device in electrical networks
US3246108A (en) * 1961-02-15 1966-04-12 Westinghouse Electric Corp Arc-extinguishing structure and tank housing for a compressed-gas circuit interrupter
US3214542A (en) * 1961-04-11 1965-10-26 Westinghouse Electric Corp Circuit interrupters with pressurized interrupting assemblage and synchronized disconnecting means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5077761U (en) * 1974-05-02 1975-07-05

Also Published As

Publication number Publication date
CH441471A (en) 1967-08-15
DE1590997A1 (en) 1970-04-16
AT256239B (en) 1967-08-10
DE1590997B2 (en) 1975-01-23
BE673742A (en) 1966-04-01
US3379849A (en) 1968-04-23

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