ZA775B - Circuit breaker - Google Patents

Circuit breaker

Info

Publication number
ZA775B
ZA775B ZA770005A ZA775A ZA775B ZA 775 B ZA775 B ZA 775B ZA 770005 A ZA770005 A ZA 770005A ZA 775 A ZA775 A ZA 775A ZA 775 B ZA775 B ZA 775B
Authority
ZA
South Africa
Prior art keywords
circuit breaker
breaker
circuit
Prior art date
Application number
ZA770005A
Inventor
J Khalid
C Oster
Original Assignee
Square D 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 Square D Co filed Critical Square D Co
Publication of ZA775B publication Critical patent/ZA775B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/42—Impedances connected with contacts
    • 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
    • H01H77/06—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 electromagnetic opening
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H9/446—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using magnetisable elements associated with the contacts

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Breakers (AREA)
ZA770005A 1974-04-29 1975-04-22 Circuit breaker ZA775B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/465,010 US3943472A (en) 1974-04-29 1974-04-29 Current limiting circuit breaker

Publications (1)

Publication Number Publication Date
ZA775B true ZA775B (en) 1977-03-30

Family

ID=23846156

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA770005A ZA775B (en) 1974-04-29 1975-04-22 Circuit breaker

Country Status (3)

Country Link
US (1) US3943472A (en)
GB (1) GB1511883A (en)
ZA (1) ZA775B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5669745A (en) * 1979-11-10 1981-06-11 Terasaki Denki Sangyo Kk Circuit breaker
GB9002678D0 (en) * 1990-02-07 1990-04-04 Mk Electric Ltd Improvements in or relating to electric switches
US5504292A (en) * 1994-01-13 1996-04-02 Square D Company Arc stack for a circuit breaker
US5498847A (en) * 1994-01-13 1996-03-12 Square D Company Arc stack for a circuit breaker
US5430419A (en) * 1994-01-13 1995-07-04 Square D Double break circuit breaker having improved secondary section
US5500496A (en) * 1994-02-14 1996-03-19 Square D Company Handle assembly for a circuit breaker
US5424699A (en) * 1994-02-14 1995-06-13 Square D Company Blow-off terminal for a circuit breaker
US5504291A (en) * 1994-02-14 1996-04-02 Square D Company Contact blade assembly for a circuit breaker
US5444423A (en) * 1994-02-14 1995-08-22 Square D Latch mechanism for a circuit breaker
US5539167A (en) * 1994-02-14 1996-07-23 Square D. Company Blade suspension assemlby for a circuit breaker
US5581063A (en) * 1995-06-26 1996-12-03 Square D Company Arc-resistant shield for protecting a movable contact carrier of a circuit breaker
US5608198A (en) * 1995-06-26 1997-03-04 Square D Company Circuit breaker arrangement for protection against electrical arcs
US6034586A (en) * 1998-10-21 2000-03-07 Airpax Corporation, Llc Parallel contact circuit breaker
EP2466603A1 (en) * 2010-12-15 2012-06-20 Eaton Industries (Netherlands) B.V. Disconnector switch for voltage transformer
CN103489721B (en) * 2013-10-11 2016-08-17 山东泰开高压开关有限公司 A kind of double-fracture breaker vertically assembles upset lathe
CN104465172B (en) * 2014-12-15 2016-05-18 南通弘峰新能源机械有限公司 The manufacture craft of Shell of circuit breaker

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068379A (en) * 1957-04-11 1962-12-11 Fed Pacific Electric Co Circuit protective apparatus
US3136921A (en) * 1957-12-10 1964-06-09 Westinghouse Electric Corp Circuit breakers
US3555471A (en) * 1968-02-28 1971-01-12 Vni I Pk I Electr Oapparatov Automatic breaker with coil adjustable to effect current limiting or electrodynamic blowoff compensation
US3483490A (en) * 1968-08-19 1969-12-09 Gen Electric Electric circuit breaker with break-away coupling
US3815059A (en) * 1972-12-01 1974-06-04 Westinghouse Electric Corp Circuit interrupter comprising electromagnetic opening means

Also Published As

Publication number Publication date
US3943472A (en) 1976-03-09
GB1511883A (en) 1978-05-24

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