GB1114031A - Compressed-gas circuit breaker - Google Patents

Compressed-gas circuit breaker

Info

Publication number
GB1114031A
GB1114031A GB1178/66A GB117866A GB1114031A GB 1114031 A GB1114031 A GB 1114031A GB 1178/66 A GB1178/66 A GB 1178/66A GB 117866 A GB117866 A GB 117866A GB 1114031 A GB1114031 A GB 1114031A
Authority
GB
United Kingdom
Prior art keywords
contact
contacts
orifice
supported
fixed contact
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
GB1178/66A
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 GB1114031A publication Critical patent/GB1114031A/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
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7092—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by several arcing chambers in series
    • 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

Landscapes

  • Circuit Breakers (AREA)

Abstract

1,114,031. Gas blast switches. WESTING- HOUSE ELECTRIC CORPORATION. 11 Jan., 1966 [21 Jan., 1965], No. 1178/66. Heading N1N. A gas blast switch has a flow-directing nozzle 35 surrounding its fixed contact assembly the orifice 40 being located between the contacts when they are open so that the area between the orifice 40 and the hollow movable contact 24 is half the area of the open end 36 of contact 24. The orifice 40 may be formed of p.t.f.e. or metal and is supported on an insulating tube 33 from a conducting fixed contact support 21 supported from a tank (10) by an insulator 13. The movable contact 24 is supported in a shield 25 spaced from the support 21 by insulating rods 26. The lower end of contact 24 carries an isolating contact co-operating with contacts 43 on a cross-bar 18. In operation, as cross-bar 18 moves downwards, a blast valve 45 opens to supply SF6 from a high-pressure reservoir (12) through conduit 29 to the flow director and contacts 23, 24 separate under spring 39. Further downward movement separates the isolating contacts 43. The fixed contact 23 is provided with an arc electrode 32 which may have a shaped tip (58) (Fig. 5, not shown). The SF6 is returned to the reservoir 12 by a compressor (not shown).
GB1178/66A 1965-01-21 1966-01-11 Compressed-gas circuit breaker Expired GB1114031A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US426762A US3364327A (en) 1965-01-21 1965-01-21 Compressed-gas circuit breaker with movable orifice contact and configured flow director about stationary contact assembly

Publications (1)

Publication Number Publication Date
GB1114031A true GB1114031A (en) 1968-05-15

Family

ID=23692095

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1178/66A Expired GB1114031A (en) 1965-01-21 1966-01-11 Compressed-gas circuit breaker

Country Status (2)

Country Link
US (1) US3364327A (en)
GB (1) GB1114031A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3538280A (en) * 1966-12-02 1970-11-03 Westinghouse Electric Corp Double-break circuit interrupter with stationary buswork structure guiding a u-shaped movable conducting bridge
US3624326A (en) * 1969-04-04 1971-11-30 Westinghouse Electric Corp Compressed-gas circuit breaker with readily removable terminal bushing means
NL151206B (en) * 1971-03-05 1976-10-15 Coq Bv SINGLE-POLE SWITCHING FIELD FOR A COMPLETELY PROTECTED ELECTRICAL DISTRIBUTION AND SWITCHING DEVICE FOR HIGH VOLTAGE.
DE2209287C3 (en) * 1972-02-22 1974-12-12 Siemens Ag, 1000 Berlin Und 8000 Muenchen Electric pressure gas switch
EP1544881B1 (en) * 2003-12-19 2007-01-24 ABB Technology AG Gas-insulated switching deivce with a nozzle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3258569A (en) * 1961-02-15 1966-06-28 Westinghouse Electric Corp Truck-mounted compressed-gas circuit interrupter with tank-enclosed interrupting units and blast tubes in spaced vertical planes
US3284602A (en) * 1961-12-20 1966-11-08 Westinghouse Electric Corp Compressed-gas circuit interrupters
US3275778A (en) * 1962-08-18 1966-09-27 Mitsubishi Electric Corp Compressed-gas circuit interrupter with pressurized arcing chamber and downstream blast valve

Also Published As

Publication number Publication date
US3364327A (en) 1968-01-16

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