WO2001071742A3 - Energy absorbing contact arm stop - Google Patents

Energy absorbing contact arm stop Download PDF

Info

Publication number
WO2001071742A3
WO2001071742A3 PCT/US2001/008041 US0108041W WO0171742A3 WO 2001071742 A3 WO2001071742 A3 WO 2001071742A3 US 0108041 W US0108041 W US 0108041W WO 0171742 A3 WO0171742 A3 WO 0171742A3
Authority
WO
WIPO (PCT)
Prior art keywords
contact
contact arm
kinetic energy
energy absorbing
arm
Prior art date
Application number
PCT/US2001/008041
Other languages
French (fr)
Other versions
WO2001071742A2 (en
Inventor
Roger Neil Castonguay
Dean Arthur Robarge
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of WO2001071742A2 publication Critical patent/WO2001071742A2/en
Publication of WO2001071742A3 publication Critical patent/WO2001071742A3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2041—Rotating bridge
    • H01H1/205—Details concerning the elastic mounting of the rotating bridge in the rotor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2041—Rotating bridge
    • H01H1/2058—Rotating bridge being assembled in a cassette, which can be placed as a complete unit into a circuit breaker
    • 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
    • H01H71/504—Manual reset mechanisms which may be also used for manual release provided with anti-rebound means
    • 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

Abstract

A circuit breaker cassette (10) comprises a housing (14) having a fixed contact (24), and a movable contact (26) on a contact arm (30). The contact arm (30) is positionable in a closed position and an open position, wherein the contact arm (30) is closed when the movable contact (26) is in contact with said fixed contact (24). A spring (40) biases the movable contact arm (30) towards the closed position. A kinetic energy-absorbing stop (36) is positioned to absorb kinetic energy of the contact arm (30) resulting from magnetic repulsive forces forcing the movable contact (26) and the fixed contact (24) apart during a short circuit condition. The kinetic energy-absorbing stop (36) comprises a material more resilient than material forming said housing (14).
PCT/US2001/008041 2000-03-17 2001-03-13 Energy absorbing contact arm stop WO2001071742A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US19017900P 2000-03-17 2000-03-17
US60/190,179 2000-03-17
US09/655,647 2000-09-06
US09/655,647 US6639168B1 (en) 2000-03-17 2000-09-06 Energy absorbing contact arm stop

Publications (2)

Publication Number Publication Date
WO2001071742A2 WO2001071742A2 (en) 2001-09-27
WO2001071742A3 true WO2001071742A3 (en) 2002-02-14

Family

ID=26885845

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/008041 WO2001071742A2 (en) 2000-03-17 2001-03-13 Energy absorbing contact arm stop

Country Status (2)

Country Link
US (1) US6639168B1 (en)
WO (1) WO2001071742A2 (en)

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KR100618610B1 (en) * 2004-12-07 2006-09-08 엘에스산전 주식회사 Contactor assembly of circuit breaker
KR100662752B1 (en) * 2005-10-04 2007-01-02 엘에스산전 주식회사 Multi pole circuit breaker
US7189935B1 (en) * 2005-12-08 2007-03-13 General Electric Company Contact arm apparatus and method of assembly thereof
US7297021B1 (en) * 2006-08-31 2007-11-20 Siemens Energy & Automation, Inc. Devices, systems, and methods for bypassing an electrical meter
KR101463043B1 (en) * 2009-09-01 2014-11-18 엘에스산전 주식회사 Slide type movable contactor assembly for circuit breaker
DE102009050296A1 (en) * 2009-10-15 2011-04-21 Siemens Aktiengesellschaft Circuit breaker, especially for low voltage
US8350168B2 (en) 2010-06-30 2013-01-08 Schneider Electric USA, Inc. Quad break modular circuit breaker interrupter
EP2620966A1 (en) * 2012-01-27 2013-07-31 Johnson Electric S.A. Contact arrangement for high-power electrical switching devices
EP2650893A1 (en) 2012-04-12 2013-10-16 ABB Oy Electric current switching apparatus
EP2650894B1 (en) 2012-04-12 2018-06-06 ABB Oy Electric current switching apparatus
ES2663341T3 (en) * 2012-04-12 2018-04-12 Abb Oy Electric current switching device
DE102013225029A1 (en) * 2013-12-05 2015-06-11 Siemens Aktiengesellschaft A connector for connecting a first feature to a second feature
DE102014107265B4 (en) * 2014-05-22 2020-01-02 Eaton Intelligent Power Limited switchgear
EP3206219B1 (en) * 2016-02-10 2019-07-03 ABB S.p.A. A switching device for lv electric installations
US20210407749A1 (en) * 2020-06-26 2021-12-30 Maclean Power, L.L.C. Isolating ground switch

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