EP0189887A3 - Closing delay arrangement for current limiting circuit breaker contacts - Google Patents

Closing delay arrangement for current limiting circuit breaker contacts Download PDF

Info

Publication number
EP0189887A3
EP0189887A3 EP86101066A EP86101066A EP0189887A3 EP 0189887 A3 EP0189887 A3 EP 0189887A3 EP 86101066 A EP86101066 A EP 86101066A EP 86101066 A EP86101066 A EP 86101066A EP 0189887 A3 EP0189887 A3 EP 0189887A3
Authority
EP
European Patent Office
Prior art keywords
current limiting
limiting circuit
circuit breaker
contact arm
breaker contacts
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
EP86101066A
Other versions
EP0189887A2 (en
EP0189887B1 (en
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
Priority to AT86101066T priority Critical patent/ATE71474T1/en
Publication of EP0189887A2 publication Critical patent/EP0189887A2/en
Publication of EP0189887A3 publication Critical patent/EP0189887A3/en
Application granted granted Critical
Publication of EP0189887B1 publication Critical patent/EP0189887B1/en
Expired 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)
  • Breakers (AREA)
  • Keying Circuit Devices (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.
EP86101066A 1985-01-29 1986-01-27 Closing delay arrangement for current limiting circuit breaker contacts Expired EP0189887B1 (en)

Priority Applications (1)

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

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1927985 1985-01-29
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 (3)

Publication Number Publication Date
EP0189887A2 EP0189887A2 (en) 1986-08-06
EP0189887A3 true EP0189887A3 (en) 1989-04-05
EP0189887B1 EP0189887B1 (en) 1992-01-08

Family

ID=11156353

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86101066A Expired EP0189887B1 (en) 1985-01-29 1986-01-27 Closing delay arrangement for current limiting circuit 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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1551832A (en) * 1967-01-27 1968-12-27
US3469216A (en) * 1966-07-12 1969-09-23 Nikko Electric Mfg Co Ltd High speed current limiting circuit breaker utilizing electromagnetic repulsion
FR2400761A1 (en) * 1977-08-18 1979-03-16 Gould Inc ANTI-KICKBACK LOCKING SYSTEM FOR CURRENT LIMITATION SWITCHES

Patent Citations (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
FR1551832A (en) * 1967-01-27 1968-12-27
FR2400761A1 (en) * 1977-08-18 1979-03-16 Gould Inc ANTI-KICKBACK LOCKING SYSTEM FOR CURRENT LIMITATION SWITCHES

Also Published As

Publication number Publication date
IT1184864B (en) 1987-10-28
IT8519279A0 (en) 1985-01-29
EP0189887A2 (en) 1986-08-06
ATE71474T1 (en) 1992-01-15
EP0189887B1 (en) 1992-01-08
DE3683301D1 (en) 1992-02-20

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