FR2117646A5 - - Google Patents

Info

Publication number
FR2117646A5
FR2117646A5 FR7144453A FR7144453A FR2117646A5 FR 2117646 A5 FR2117646 A5 FR 2117646A5 FR 7144453 A FR7144453 A FR 7144453A FR 7144453 A FR7144453 A FR 7144453A FR 2117646 A5 FR2117646 A5 FR 2117646A5
Authority
FR
France
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
FR7144453A
Other languages
French (fr)
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.)
Hitachi Ltd
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 FR2117646A5 publication Critical patent/FR2117646A5/fr
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
    • H01H33/88—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
FR7144453A 1970-12-11 1971-12-10 Expired FR2117646A5 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR2117646A5 true FR2117646A5 (enrdf_load_stackoverflow) 1972-07-21

Family

ID=14511164

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7144453A Expired FR2117646A5 (enrdf_load_stackoverflow) 1970-12-11 1971-12-10

Country Status (4)

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

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 (enrdf_load_stackoverflow) * 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
DE2161507B2 (de) 1975-10-09
DE2161507A1 (de) 1972-06-29
IT943214B (it) 1973-04-02
JPS5019330B1 (enrdf_load_stackoverflow) 1975-07-05

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Legal Events

Date Code Title Description
ST Notification of lapse