ATE71474T1 - DELAYED CLOSING DEVICE FOR CURRENT-LIMITING BREAKER CONTACTS. - Google Patents

DELAYED CLOSING DEVICE FOR CURRENT-LIMITING BREAKER CONTACTS.

Info

Publication number
ATE71474T1
ATE71474T1 AT86101066T AT86101066T ATE71474T1 AT E71474 T1 ATE71474 T1 AT E71474T1 AT 86101066 T AT86101066 T AT 86101066T AT 86101066 T AT86101066 T AT 86101066T AT E71474 T1 ATE71474 T1 AT E71474T1
Authority
AT
Austria
Prior art keywords
contact arm
current
closing device
breaker contacts
delayed closing
Prior art date
Application number
AT86101066T
Other languages
German (de)
Inventor
Claudio Banfi
Original Assignee
Cge 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 Spa filed Critical Cge Spa
Application granted granted Critical
Publication of ATE71474T1 publication Critical patent/ATE71474T1/en

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)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Emergency Protection Circuit Devices (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.
AT86101066T 1985-01-29 1986-01-27 DELAYED CLOSING DEVICE FOR CURRENT-LIMITING BREAKER CONTACTS. ATE71474T1 (en)

Applications Claiming Priority (2)

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
EP86101066A EP0189887B1 (en) 1985-01-29 1986-01-27 Closing delay arrangement for current limiting circuit breaker contacts

Publications (1)

Publication Number Publication Date
ATE71474T1 true ATE71474T1 (en) 1992-01-15

Family

ID=11156353

Family Applications (1)

Application Number Title Priority Date Filing Date
AT86101066T ATE71474T1 (en) 1985-01-29 1986-01-27 DELAYED CLOSING DEVICE FOR CURRENT-LIMITING BREAKER CONTACTS.

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
DE3683301D1 (en) 1992-02-20
EP0189887A2 (en) 1986-08-06
EP0189887A3 (en) 1989-04-05
EP0189887B1 (en) 1992-01-08
IT1184864B (en) 1987-10-28
IT8519279A0 (en) 1985-01-29

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee