DE3683301D1 - DEVICE FOR DELAYED CLOSING FOR CONTACTS OF A CURRENT LIMIT SWITCH. - Google Patents

DEVICE FOR DELAYED CLOSING FOR CONTACTS OF A CURRENT LIMIT SWITCH.

Info

Publication number
DE3683301D1
DE3683301D1 DE8686101066T DE3683301T DE3683301D1 DE 3683301 D1 DE3683301 D1 DE 3683301D1 DE 8686101066 T DE8686101066 T DE 8686101066T DE 3683301 T DE3683301 T DE 3683301T DE 3683301 D1 DE3683301 D1 DE 3683301D1
Authority
DE
Germany
Prior art keywords
contact arm
contacts
limit switch
current limit
delayed closing
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 - Lifetime
Application number
DE8686101066T
Other languages
German (de)
Inventor
Claudio Banfi
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.)
CGE Generale Elettromeccanica SpA
Original Assignee
CGE Generale Elettromeccanica SpA
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 CGE Generale Elettromeccanica SpA filed Critical CGE Generale Elettromeccanica SpA
Application granted granted Critical
Publication of DE3683301D1 publication Critical patent/DE3683301D1/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
    • 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
    • H01H77/104—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 with a stable blow-off position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H7/00—Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H75/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of power reset mechanism
    • H01H75/02—Details
    • H01H75/04—Reset mechanisms for automatically reclosing a limited number of times

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Keying Circuit Devices (AREA)
  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Electronic Switches (AREA)

Abstract

A control arrangement to prevent or delay the closing of current limiting circuit breaker contacts after opening by repulsion due to a short circuit is disclosed. A first contact arm (10) and a second contact arm (12) are operatively associated with a ratchet (38) for locking the second contact arm (12). A release lever (62) operatable by the first contact arm (10) and the breaker operating mechanism releases the ratchet (38) after a delay period greater than the duration of the short circuit or the operating time of the breaker operating mechanism.
DE8686101066T 1985-01-29 1986-01-27 DEVICE FOR DELAYED CLOSING FOR CONTACTS OF A CURRENT LIMIT SWITCH. Expired - Lifetime DE3683301D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT19279/85A IT1184864B (en) 1985-01-29 1985-01-29 PROVISION TO AVOID AND / OR DELAY THE CLOSING OF CONTACTS IN CURRENT LIMIT SWITCHES AFTER OPENING THE SAME FOR REPULSION

Publications (1)

Publication Number Publication Date
DE3683301D1 true DE3683301D1 (en) 1992-02-20

Family

ID=11156353

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686101066T Expired - Lifetime DE3683301D1 (en) 1985-01-29 1986-01-27 DEVICE FOR DELAYED CLOSING FOR CONTACTS OF A CURRENT LIMIT SWITCH.

Country Status (4)

Country Link
EP (1) EP0189887B1 (en)
AT (1) ATE71474T1 (en)
DE (1) DE3683301D1 (en)
IT (1) IT1184864B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2792768B1 (en) * 1999-04-22 2001-06-15 Schneider Electric Ind Sa LIMITING CIRCUIT BREAKER COMPRISING AN AUXILIARY ENERGY ACCUMULATOR
US6747532B1 (en) 2002-12-23 2004-06-08 General Electric Company Method, system and apparatus for employing neutral poles in multipole circuit breakers
CN107958828B (en) * 2016-10-17 2020-03-31 浙江正泰电器股份有限公司 Circuit breaker

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3469216A (en) * 1966-07-12 1969-09-23 Nikko Electric Mfg Co Ltd High speed current limiting circuit breaker utilizing electromagnetic repulsion
NL142271B (en) * 1967-01-27 1974-05-15 Terasaki Denki Sangyo Kk AUTOMATIC GEARBOX WITH MOVABLE CONTACT RODS OPENING UNDER THE EFFECT OF ELECTRODYNAMIC FORCES.
US4144513A (en) * 1977-08-18 1979-03-13 Gould Inc. Anti-rebound latch for current limiting switches

Also Published As

Publication number Publication date
IT1184864B (en) 1987-10-28
EP0189887A3 (en) 1989-04-05
EP0189887A2 (en) 1986-08-06
ATE71474T1 (en) 1992-01-15
IT8519279A0 (en) 1985-01-29
EP0189887B1 (en) 1992-01-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee