GB983501A - Improvements in or relating to gas-blast electric circuit-breakers - Google Patents

Improvements in or relating to gas-blast electric circuit-breakers

Info

Publication number
GB983501A
GB983501A GB10291/60A GB1029160A GB983501A GB 983501 A GB983501 A GB 983501A GB 10291/60 A GB10291/60 A GB 10291/60A GB 1029160 A GB1029160 A GB 1029160A GB 983501 A GB983501 A GB 983501A
Authority
GB
United Kingdom
Prior art keywords
space
valve
contacts
piston
pressure
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
GB10291/60A
Inventor
Artur Goldner
Stanislaw Miezyslaw Gonek
Henry Rowlinson
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.)
English Electric Co Ltd
Original Assignee
English Electric Co Ltd
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 English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB10291/60A priority Critical patent/GB983501A/en
Priority to GB36280/64A priority patent/GB983502A/en
Priority to US97186A priority patent/US3163737A/en
Priority to JP3629364A priority patent/JPS4218323B1/ja
Publication of GB983501A publication Critical patent/GB983501A/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
    • H01H33/86—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
    • 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
    • H01H33/167—Impedances connected with contacts the impedance being inserted only while opening the switch

Landscapes

  • Gas-Insulated Switchgears (AREA)
  • Circuit Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

983,501. Gas-blast circuit-breakers. ENGLISH ELECTRIC CO. Ltd. March 22, 1961 [March 23, 1960], No. 10291/60. Heading H2B. In a gas-blast circuit-breaker having a main circuit interrupter 12 in parallel with a resistor 13 and a resistor circuit interrupter 14, the opening of a single exhaust valve 18 is effective to close the resistor circuit interrupter 14 and then to open the main interrupter 12 and the subsequent closing of the valve is effective to re-open the resistor circuit interrupter 14. When the circuit-breaker shown is to be opened, a rod 58 is moved upwards and through levers 60, 61 operates a valve 65 to supply compressed gas to the space 75 below the operating piston 41 of the exhaust valve 18. The valve 18 opens causing a drop in pressure in the spaces 20, 43 so that compressed gas supplied from the spaces 21, 36, through pipes 40, 54, acts on a piston 51 to close the contacts 50, 48 of the resistor circuit interrupter 14. The loss of pressure in the space 20 results in a loss of pressure in the space 72 to the right of a piston 29, so that compressed gas supplied through pipes 70, 68 to the space 69 moves the piston 29 to open the main contacts 25, 27. This opening of the main contacts causes linkage 31, 63, 61 to reset the valve 65 to reclose the exhaust valve 18. The main contacts 25, 27 are maintained open by an over-centre toggle spring 34, but the increase in pressure in the space 43 permits a spring 52 to re-open the contacts 50, 47, gas flowing into a closed space 46 through an aperture 47 in the contact 48 rapidly de-ionizing the arc gap. To reclose the main contacts, the rod 58 is moved downwards to operate a valve 64 to vent the space 69 to atmosphere so that the piston 29 is moved by the pressure in space 72 to close the contacts 27, 25. These contacts are maintained closed by the spring 34 when the linkage 31, 63, 61 resets the valve 64. Specification 983,502 is referred to.
GB10291/60A 1960-03-23 1960-03-23 Improvements in or relating to gas-blast electric circuit-breakers Expired GB983501A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB10291/60A GB983501A (en) 1960-03-23 1960-03-23 Improvements in or relating to gas-blast electric circuit-breakers
GB36280/64A GB983502A (en) 1960-03-23 1960-03-23 Improvements in or relating to gas-blast electric circuit-breakers
US97186A US3163737A (en) 1960-03-23 1961-03-21 Gas blast circuit breaker and operating means therefor
JP3629364A JPS4218323B1 (en) 1960-03-23 1964-06-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10291/60A GB983501A (en) 1960-03-23 1960-03-23 Improvements in or relating to gas-blast electric circuit-breakers

Publications (1)

Publication Number Publication Date
GB983501A true GB983501A (en) 1965-02-17

Family

ID=9965164

Family Applications (2)

Application Number Title Priority Date Filing Date
GB10291/60A Expired GB983501A (en) 1960-03-23 1960-03-23 Improvements in or relating to gas-blast electric circuit-breakers
GB36280/64A Expired GB983502A (en) 1960-03-23 1960-03-23 Improvements in or relating to gas-blast electric circuit-breakers

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB36280/64A Expired GB983502A (en) 1960-03-23 1960-03-23 Improvements in or relating to gas-blast electric circuit-breakers

Country Status (3)

Country Link
US (1) US3163737A (en)
JP (1) JPS4218323B1 (en)
GB (2) GB983501A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2550004A1 (en) * 1983-07-29 1985-02-01 Alsthom Atlantique High-voltage circuit breaker provided with a device for inserting resistors upon closure of the circuit breaker.

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1023151A (en) * 1961-03-17 1966-03-23 English Electric Co Ltd Improvements in or relating to gas-blast circuit-breakers
BE633691A (en) * 1962-07-02
GB1097131A (en) * 1963-11-16 1967-12-29 English Electric Co Ltd Improvements in or relating to circuit breakers
US3311726A (en) * 1964-10-05 1967-03-28 Westinghouse Electric Corp Puffer-type fluid-blast circuit interrupter with pressurized casing for actuating driving piston
US3379849A (en) * 1964-12-17 1968-04-23 Westinghouse Electric Corp Dual-pressure gas-blast circuit breaker with piston means and interrupting unit in closed tank
CH425949A (en) * 1965-09-06 1966-12-15 Bbc Brown Boveri & Cie Compressed gas switch with multiple interruption
US3763340A (en) * 1971-02-12 1973-10-02 Siemens Ag High-voltage circuit breaker equipped with means for placing a resistor in parallel with the breaker contact during breaker closing operations
CH530086A (en) * 1971-04-02 1972-10-31 Bbc Brown Boveri & Cie Pressurized gas switch to which a pressurized gas pulse is fed to switch it off or on
US4347414A (en) * 1980-05-05 1982-08-31 Northern Engineering Industries, Limited Arc shorting device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1255225A (en) * 1911-12-18 1918-02-05 Cutler Hammer Mfg Co Electric switch.
US2665351A (en) * 1951-02-09 1954-01-05 Asea Ab Arrangement in air blast circuit breaker provided with damping resistance
GB760355A (en) * 1954-03-17 1956-10-31 Reyrolle A & Co Ltd Improvements in or relating to gas-blast electric circuit-breakers
US2955182A (en) * 1957-06-21 1960-10-04 Ite Circuit Breaker Ltd Contact cooling means for recirculating gas blast interrupters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2550004A1 (en) * 1983-07-29 1985-02-01 Alsthom Atlantique High-voltage circuit breaker provided with a device for inserting resistors upon closure of the circuit breaker.

Also Published As

Publication number Publication date
GB983502A (en) 1965-02-17
US3163737A (en) 1964-12-29
JPS4218323B1 (en) 1967-10-24

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