GB1075064A - Improvements in gas blast circuit breakers of the axial blast type - Google Patents

Improvements in gas blast circuit breakers of the axial blast type

Info

Publication number
GB1075064A
GB1075064A GB33018/64A GB3301864A GB1075064A GB 1075064 A GB1075064 A GB 1075064A GB 33018/64 A GB33018/64 A GB 33018/64A GB 3301864 A GB3301864 A GB 3301864A GB 1075064 A GB1075064 A GB 1075064A
Authority
GB
United Kingdom
Prior art keywords
electrode
blast
gas
circuit breakers
axial
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
GB33018/64A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1075064A publication Critical patent/GB1075064A/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
    • H01H33/7069—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by special dielectric or insulating properties or by special electric or magnetic field control properties
    • 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
    • H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet

Landscapes

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

Abstract

1,075,064. Gas blast switches. GENERAL ELECTRIC CO. Aug. 13, 1964 [Aug. 16, 1963], No. 33018/64. Heading H2B. The upstream arcing electrode 70 of the axialblast circuit breaker shown in Specification 987,295 is modified so as to move the upstream arc root out of the region 74 of stagnant gas in front of the electrode. As shown in Fig. 2 a P.T.F.E. insert 80 prevents the arc rooting on the centre of the electrode thus forming a loop in the current path tending to force the arc root towards the edges of the electrode. In a modification (Fig. 5) the insulating insert is replaced by a flared central bore 90 in the electrode through which a part of the blast gas is diverted.
GB33018/64A 1963-08-16 1964-08-13 Improvements in gas blast circuit breakers of the axial blast type Expired GB1075064A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US302555A US3330927A (en) 1963-08-16 1963-08-16 Gas blast circuit breaker of the axial blast type with magnetic means for forcing the upstream arc terminal away from the center of the stagnation zone at the upstream electrode

Publications (1)

Publication Number Publication Date
GB1075064A true GB1075064A (en) 1967-07-12

Family

ID=23168242

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33018/64A Expired GB1075064A (en) 1963-08-16 1964-08-13 Improvements in gas blast circuit breakers of the axial blast type

Country Status (6)

Country Link
US (1) US3330927A (en)
JP (1) JPS4017337B1 (en)
DE (1) DE1229620B (en)
FR (1) FR1404901A (en)
GB (1) GB1075064A (en)
NL (1) NL6409419A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3538282A (en) * 1966-11-29 1970-11-03 Westinghouse Electric Corp Fluid-blast circuit interrupters with exhaust valves responsive solely to the pressure generated by an arc of excessive magnitude
US4396665A (en) * 1980-06-16 1983-08-02 W. R. Grace & Co. Self-adhesive roofing laminates having metal layer therein

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR597454A (en) * 1924-05-09 1925-11-21
DE553639C (en) * 1929-01-31 1932-06-29 Vormals Skodawerke Ag Contact arrangement for electrical switches, especially oil switches
GB375309A (en) * 1931-03-18 1932-06-20 Electr & Allied Ind Res Ass Improvements relating to electric switches and circuit breakers
GB375808A (en) * 1931-03-30 1932-06-30 Electr & Allied Ind Res Ass Improvements relating to electric switches or circuit breakers
US2027836A (en) * 1934-02-23 1936-01-14 Gen Electric Vacuum switch
US2333598A (en) * 1941-01-09 1943-11-02 Westinghouse Electric & Mfg Co Circuit interrupter
US2897324A (en) * 1957-10-09 1959-07-28 Gen Electric Fluid blast circuit interrupter
US3008022A (en) * 1960-06-15 1961-11-07 Gen Electric Contact structure for a vacuum-type circuit interrupter

Also Published As

Publication number Publication date
DE1229620B (en) 1966-12-01
JPS4017337B1 (en) 1965-08-06
NL6409419A (en) 1965-02-17
US3330927A (en) 1967-07-11
FR1404901A (en) 1965-07-02

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