IT943214B - GAS BLOW ELECTRIC SWITCH - Google Patents

GAS BLOW ELECTRIC SWITCH

Info

Publication number
IT943214B
IT943214B IT71031/71A IT7103171A IT943214B IT 943214 B IT943214 B IT 943214B IT 71031/71 A IT71031/71 A IT 71031/71A IT 7103171 A IT7103171 A IT 7103171A IT 943214 B IT943214 B IT 943214B
Authority
IT
Italy
Prior art keywords
electric switch
gas blow
blow electric
gas
switch
Prior art date
Application number
IT71031/71A
Other languages
Italian (it)
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of IT943214B publication Critical patent/IT943214B/en

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
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/91—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing 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
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/285—Power arrangements internal to the switch for operating the driving mechanism using electro-dynamic repulsion
    • 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
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/882—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts the movement being assisted by accelerating coils
IT71031/71A 1970-12-11 1971-12-09 GAS BLOW ELECTRIC SWITCH IT943214B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45109475A JPS5019330B1 (en) 1970-12-11 1970-12-11

Publications (1)

Publication Number Publication Date
IT943214B true IT943214B (en) 1973-04-02

Family

ID=14511164

Family Applications (1)

Application Number Title Priority Date Filing Date
IT71031/71A IT943214B (en) 1970-12-11 1971-12-09 GAS BLOW ELECTRIC SWITCH

Country Status (4)

Country Link
US (1) US3721786A (en)
JP (1) JPS5019330B1 (en)
FR (1) FR2117646A5 (en)
IT (1) IT943214B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902031A (en) * 1974-07-17 1975-08-26 Ite Imperial Corp Puffer interrupter operating mechanism with magnetic assist and arcless and switchless coil cut-in
JPS5734614B2 (en) * 1975-03-10 1982-07-23
US4041263A (en) * 1975-08-22 1977-08-09 General Electric Company Electric circuit interrupter of the puffer type comprising a magnetically actuated piston
JPS52110473A (en) * 1976-03-12 1977-09-16 Hitachi Ltd Electromagnetic buffer gas breaker
US5453591A (en) * 1994-04-05 1995-09-26 Abb Power T&D Company Inc. Sensing structure for component wear in high voltage circuit interrupters

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3551624A (en) * 1966-09-01 1970-12-29 Westinghouse Electric Corp Gas-flow circuit interrupters having improved orifice and contact constructions
US3551626A (en) * 1967-02-16 1970-12-29 Westinghouse Electric Corp Fluid-blast circuit interrupters with improved electromagnetic driving means
US3621171A (en) * 1968-05-06 1971-11-16 Hitachi Ltd Gas blast circuit breaker with puffer piston having an electrodynamic assist in the form of axially overlapping coils

Also Published As

Publication number Publication date
US3721786A (en) 1973-03-20
JPS5019330B1 (en) 1975-07-05
DE2161507B2 (en) 1975-10-09
FR2117646A5 (en) 1972-07-21
DE2161507A1 (en) 1972-06-29

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