ATE309T1 - MULTI-POLE CURRENT-LIMITING CIRCUIT SWITCH. - Google Patents

MULTI-POLE CURRENT-LIMITING CIRCUIT SWITCH.

Info

Publication number
ATE309T1
ATE309T1 AT79102226T AT79102226T ATE309T1 AT E309 T1 ATE309 T1 AT E309T1 AT 79102226 T AT79102226 T AT 79102226T AT 79102226 T AT79102226 T AT 79102226T AT E309 T1 ATE309 T1 AT E309T1
Authority
AT
Austria
Prior art keywords
contactors
poles
movable
latch
stationary
Prior art date
Application number
AT79102226T
Other languages
German (de)
Inventor
Kiyoshi Dipl.-Ing. Kandatsu
Original Assignee
Fuji Electric Co. Ltd.
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 Fuji Electric Co. Ltd. filed Critical Fuji Electric Co. Ltd.
Application granted granted Critical
Publication of ATE309T1 publication Critical patent/ATE309T1/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
    • H01H77/101—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 with increasing of contact pressure by electrodynamic forces before opening
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/522—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism
    • H01H71/525—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism comprising a toggle between cradle and contact arm and mechanism spring acting between handle and toggle knee

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Electromagnets (AREA)

Abstract

A circuit breaker having stationary contactors provided for all of the poles thereof. Movable contactors are provided for all of the poles in correspondence to the stationary contactors. Stationary contacts are provided on the end portions of stationary contactors and movable contacts are disposed on the end portions of the movable contactors. The movable contactors are movable from the stationary contactors by electromagnetic force to open respective circuits before the circuit breaker is opened by an overcurrent tripping device when large current such as short-circuit current flows. Holders adapted to hold the movable contactors of all of the poles are mounted on a common rotatable insulating rod, one of the holders being provided with a latch which is turnable around a rod provided on the holder. A slot is normally engaged with the latch, and when disengaged from the latch, a rod can be turned by the holder. A spring operates to engage the latch with the rod until an electromagnetic moment acting on the latch generated in any of the poles or the sum of electromagnetic forces generated in all of the poles reaches a predetermined value. When a predetermined value is exceeded, the movable contactors of all of the poles are simultaneously moved from the stationary contactors to open the respective circuits with the aid of the insulating rod and the holders.
AT79102226T 1978-07-05 1979-07-02 MULTI-POLE CURRENT-LIMITING CIRCUIT SWITCH. ATE309T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP53081599A JPS5942935B2 (en) 1978-07-05 1978-07-05 circuit breaker
EP79102226A EP0006637B1 (en) 1978-07-05 1979-07-02 Multipolar current-limiting circuit breaker

Publications (1)

Publication Number Publication Date
ATE309T1 true ATE309T1 (en) 1981-10-15

Family

ID=13750774

Family Applications (1)

Application Number Title Priority Date Filing Date
AT79102226T ATE309T1 (en) 1978-07-05 1979-07-02 MULTI-POLE CURRENT-LIMITING CIRCUIT SWITCH.

Country Status (6)

Country Link
US (1) US4278958A (en)
EP (1) EP0006637B1 (en)
JP (1) JPS5942935B2 (en)
AT (1) ATE309T1 (en)
DE (1) DE2926166A1 (en)
PH (1) PH16637A (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56122245U (en) * 1980-02-19 1981-09-17
FR2506066A1 (en) * 1981-05-18 1982-11-19 Merlin Gerin MANEUVERING MECHANISM OF A LOW VOLTAGE MULTIPOLAR ELECTRIC CIRCUIT BREAKER
SE449338B (en) * 1981-08-13 1987-04-27 Tetra Pak Int PACKAGING CONTAINER OPENING DEVICE
DE3133285C2 (en) * 1981-08-22 1984-05-30 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Auto switch
US4470027A (en) * 1982-07-16 1984-09-04 Eaton Corporation Molded case circuit breaker with improved high fault current interruption capability
US4467301A (en) * 1982-08-27 1984-08-21 Essex Group, Inc. Electric switch having enhanced fault current capability
US4488133A (en) * 1983-03-28 1984-12-11 Siemens-Allis, Inc. Contact assembly including spring loaded cam follower overcenter means
JPS60123942U (en) * 1984-01-30 1985-08-21 富士電機株式会社 circuit break
US4849590A (en) * 1988-04-01 1989-07-18 Kohler Company Electric switch with counteracting electro-electro-dynamic forces
US5021819A (en) * 1990-08-06 1991-06-04 General Electric Company Circuit breaker with positive over-center acceleration
US5266760A (en) * 1992-08-06 1993-11-30 Eaton Corporation Molded case circuit breaker
US5430420A (en) * 1994-01-24 1995-07-04 Eaton Corporation Contact arrangement for a circuit breaker using magnetic attraction for high current trip
DE19738807A1 (en) * 1997-09-05 1999-03-11 Kloeckner Moeller Gmbh Multi-pole current-limiting contact system for LV switchgear
US6034581A (en) * 1998-06-30 2000-03-07 Siemens Energy & Automation, Inc. Remote controlled circuit breaker
DE10058419C1 (en) * 2000-11-24 2002-06-06 Moeller Gmbh Current-limiting switch has conductor loop provided with switching current providing electrodynamic forces assisting opening movement of contact device upon overload detection
DE10230085A1 (en) * 2002-06-27 2004-01-15 Siemens Ag Electrical circuit breaker with a switching contact arrangement having a current loop
ITMI20042234A1 (en) * 2004-11-19 2005-02-19 Abb Service Srl AUTOMATIC SWITCH WITH RELEASE KINEMATISM USED BY MOBILE CONTACT
JP2007314946A (en) * 2006-05-23 2007-12-06 Sekisui Yane System Kk Method for double roofing and draining member used therefor
KR100798340B1 (en) 2006-12-29 2008-01-28 엘에스산전 주식회사 Molded case circuit breaker with limit current function
KR101079020B1 (en) * 2010-01-18 2011-11-01 엘에스산전 주식회사 Shaft unit for circuit breaker
KR101698814B1 (en) * 2015-05-13 2017-01-24 현대중공업 주식회사 Air circuit breaker

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3182157A (en) * 1961-05-09 1965-05-04 Ite Circuit Breaker Ltd Over-center cam and anti-rebound means
DE1286185B (en) * 1963-02-18 1969-01-02 Licentia Gmbh Current-limiting circuit breaker
US3500266A (en) * 1968-08-01 1970-03-10 Federal Pacific Electric Co High-speed circuit breakers
US3562680A (en) * 1969-09-17 1971-02-09 Fuji Electric Co Ltd Circuit breaker
US4144513A (en) * 1977-08-18 1979-03-13 Gould Inc. Anti-rebound latch for current limiting switches
US4146855A (en) * 1977-09-06 1979-03-27 Square D Company Low profile multi-pole circuit breaker having multiple toggle springs

Also Published As

Publication number Publication date
DE2926166A1 (en) 1980-01-17
JPS5942935B2 (en) 1984-10-18
DE2926166C2 (en) 1988-06-01
EP0006637B1 (en) 1981-10-14
US4278958A (en) 1981-07-14
EP0006637A1 (en) 1980-01-09
PH16637A (en) 1983-12-05
JPS559346A (en) 1980-01-23

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee