EP0232473A3 - A circuit breaker - Google Patents

A circuit breaker Download PDF

Info

Publication number
EP0232473A3
EP0232473A3 EP86115277A EP86115277A EP0232473A3 EP 0232473 A3 EP0232473 A3 EP 0232473A3 EP 86115277 A EP86115277 A EP 86115277A EP 86115277 A EP86115277 A EP 86115277A EP 0232473 A3 EP0232473 A3 EP 0232473A3
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
breaker
circuit
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.)
Granted
Application number
EP86115277A
Other versions
EP0232473A2 (en
EP0232473B1 (en
Inventor
Shinji Yamagata
Fumiyuki Hisatsune
Junichi Terachi
Hajimu Yoshiyasu
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.)
OFFERTA DI LICENZA AL PUBBLICO
Original Assignee
Mitsubishi 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
Priority claimed from JP3555781U external-priority patent/JPS57147553U/ja
Priority claimed from JP3555681U external-priority patent/JPS57147552U/ja
Priority claimed from JP3555281U external-priority patent/JPS57147548U/ja
Priority claimed from JP1981035554U external-priority patent/JPH0218516Y2/ja
Priority claimed from JP3555581U external-priority patent/JPS57147551U/ja
Priority to EP86115277A priority Critical patent/EP0232473B1/en
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP0232473A2 publication Critical patent/EP0232473A2/en
Publication of EP0232473A3 publication Critical patent/EP0232473A3/en
Application granted granted Critical
Publication of EP0232473B1 publication Critical patent/EP0232473B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/18—Means for extinguishing or suppressing arc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
    • H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
    • H01H77/10—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening
    • H01H77/102—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening characterised by special mounting of contact arm, allowing blow-off movement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
    • H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
    • H01H2077/025—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with pneumatic means, e.g. by arc pressure

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
EP86115277A 1981-03-12 1982-03-12 A circuit breaker Expired - Lifetime EP0232473B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP86115277A EP0232473B1 (en) 1981-03-12 1982-03-12 A circuit breaker

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
JP3555681U JPS57147552U (en) 1981-03-12 1981-03-12
JP35554/81U 1981-03-12
JP3555281U JPS57147548U (en) 1981-03-12 1981-03-12
JP1981035554U JPH0218516Y2 (en) 1981-03-12 1981-03-12
JP35557/81U 1981-03-12
JP35555/81U 1981-03-12
JP35556/81U 1981-03-12
JP3555781U JPS57147553U (en) 1981-03-12 1981-03-12
JP3555581U JPS57147551U (en) 1981-03-12 1981-03-12
JP35552/81U 1981-03-12
EP86115277A EP0232473B1 (en) 1981-03-12 1982-03-12 A circuit breaker

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP82102015.3 Division 1982-03-12

Publications (3)

Publication Number Publication Date
EP0232473A2 EP0232473A2 (en) 1987-08-19
EP0232473A3 true EP0232473A3 (en) 1987-09-09
EP0232473B1 EP0232473B1 (en) 1991-05-29

Family

ID=27545382

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86115277A Expired - Lifetime EP0232473B1 (en) 1981-03-12 1982-03-12 A circuit breaker

Country Status (1)

Country Link
EP (1) EP0232473B1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127488A (en) * 1960-07-18 1964-03-31 Ite Circuit Breaker Ltd Current limiting circuit breaker having both contacts movable
US3402273A (en) * 1965-12-01 1968-09-17 Ite Circuit Breaker Ltd Arc chamber for circuit breakers
DE1765050B2 (en) * 1968-03-26 1976-08-05 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt ELECTRICAL CONTACT OR ELECTRODE ARRANGEMENT FOR THE FIXED STABILIZATION OF THE ARC FLOOR POINTS AND TO REDUCE THE BURN-ON LOSS
US3997746A (en) * 1974-04-23 1976-12-14 Airpax Electronics, Incorporated Circuit breaker with arc chamber screen
EP0054833A1 (en) * 1980-12-09 1982-06-30 Mitsubishi Denki Kabushiki Kaisha Arc restricting device for a circuit breaker

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5848979B2 (en) * 1978-08-10 1983-11-01 富士電機株式会社 circuit break

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127488A (en) * 1960-07-18 1964-03-31 Ite Circuit Breaker Ltd Current limiting circuit breaker having both contacts movable
US3402273A (en) * 1965-12-01 1968-09-17 Ite Circuit Breaker Ltd Arc chamber for circuit breakers
DE1765050B2 (en) * 1968-03-26 1976-08-05 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt ELECTRICAL CONTACT OR ELECTRODE ARRANGEMENT FOR THE FIXED STABILIZATION OF THE ARC FLOOR POINTS AND TO REDUCE THE BURN-ON LOSS
US3997746A (en) * 1974-04-23 1976-12-14 Airpax Electronics, Incorporated Circuit breaker with arc chamber screen
EP0054833A1 (en) * 1980-12-09 1982-06-30 Mitsubishi Denki Kabushiki Kaisha Arc restricting device for a circuit breaker

Also Published As

Publication number Publication date
EP0232473A2 (en) 1987-08-19
EP0232473B1 (en) 1991-05-29

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