EP1471553A4 - Air circuit breaker - Google Patents

Air circuit breaker

Info

Publication number
EP1471553A4
EP1471553A4 EP02710413A EP02710413A EP1471553A4 EP 1471553 A4 EP1471553 A4 EP 1471553A4 EP 02710413 A EP02710413 A EP 02710413A EP 02710413 A EP02710413 A EP 02710413A EP 1471553 A4 EP1471553 A4 EP 1471553A4
Authority
EP
European Patent Office
Prior art keywords
fixed
contact
arc
cabinet
movable
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
EP02710413A
Other languages
German (de)
French (fr)
Other versions
EP1471553A1 (en
EP1471553B1 (en
Inventor
Hiroshi Okashita
Junichi Kawakami
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP1471553A1 publication Critical patent/EP1471553A1/en
Publication of EP1471553A4 publication Critical patent/EP1471553A4/en
Application granted granted Critical
Publication of EP1471553B1 publication Critical patent/EP1471553B1/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
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/18—Means for extinguishing or suppressing arc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52—Cooling of switch parts
    • 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
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/62—Heating or cooling of contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes
    • H01H2009/343—Venting arrangements for arc chutes with variable venting aperture function of arc chute internal pressure, e.g. resilient flap-valve or check-valve

Abstract

An air circuit breaker capable of suppressing the temperature rise of a make and break contactor and energized bodies around the contact by a heat generation due to the energization of the contact, comprising, in a cabinet (1), a fixed conductor (3) having a fixed contact (4) fixed thereto, a movable element (6) having a movable contact (5) moving close to and apart from the fixed contact (4) fixed thereto, and an arc-extinguishing device (17) inductively extinguishing an arc generated between both contacts, a discharge window (1c) for discharging arc gas to the outside of the cabinet, vent holes (1d) opened at a position opposed to the discharge window (1c) and forming an air passage inside the cabinet, a valve member (21) closing the vent holes (1d) when a pressure inside the cabinet rises, an arc block (22) having a fixed side arc contactor (22a) extended from the fixed contact (4) to allow an electricity and a heat to be transferred thereto, and the movable side arc contactor (6) extended from the movable contact (5) to allow an electricity and a heat to be transferred thereto.
EP02710413A 2002-01-31 2002-01-31 Air circuit breaker Expired - Lifetime EP1471553B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2002/000739 WO2003065396A1 (en) 2002-01-31 2002-01-31 Air circuit breaker

Publications (3)

Publication Number Publication Date
EP1471553A1 EP1471553A1 (en) 2004-10-27
EP1471553A4 true EP1471553A4 (en) 2005-04-06
EP1471553B1 EP1471553B1 (en) 2006-05-17

Family

ID=27639268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02710413A Expired - Lifetime EP1471553B1 (en) 2002-01-31 2002-01-31 Air circuit breaker

Country Status (8)

Country Link
EP (1) EP1471553B1 (en)
JP (1) JP4138665B2 (en)
KR (1) KR100552413B1 (en)
CN (1) CN1253909C (en)
DE (1) DE60211562T2 (en)
ES (1) ES2262784T3 (en)
TW (1) TW540078B (en)
WO (1) WO2003065396A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100728863B1 (en) 2006-02-16 2007-06-19 엘에스산전 주식회사 Arc extinguishing device of air circuit breaker
US7294804B1 (en) * 2007-03-29 2007-11-13 Eaton Corporation Energy dissipating spring seat
JP4753263B2 (en) * 2008-10-10 2011-08-24 三菱電機株式会社 Circuit breaker
CN101847553A (en) * 2010-06-07 2010-09-29 湖北盛佳电器设备有限公司 Breaker capable of improving disconnecting capacity
CN102005345B (en) * 2010-11-11 2012-11-21 江苏辉能电气有限公司 Arc extinguishing module of molded case low-voltage circuit breaker
ES2600962T3 (en) * 2011-09-21 2017-02-13 Siemens Aktiengesellschaft Power switch with ventilation channels for efficient heat evacuation
CN105762028B (en) 2014-12-18 2019-08-02 通用电气公司 A kind of contact arm of breaker and the method for manufacturing the contact arm
JP6246448B1 (en) * 2016-04-22 2017-12-13 三菱電機株式会社 Contact device for circuit breaker and circuit breaker using the contact device
KR20220061718A (en) 2020-11-06 2022-05-13 엘에스일렉트릭(주) Arc extinguish unit and air circuit breaker include the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB855730A (en) * 1957-03-27 1960-12-07 Chilton Electric Products Ltd Improvements in and relating to electrical circuit-breakers
JPS5882441A (en) * 1981-11-12 1983-05-18 三菱電機株式会社 Switching unit
JPH05303930A (en) * 1992-02-26 1993-11-16 Mitsubishi Electric Corp Circuit breaker
US5281776A (en) * 1991-10-15 1994-01-25 Merlin Gerin Multipole circuit breaker with single-pole units

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5882440A (en) * 1981-11-12 1983-05-18 三菱電機株式会社 Switching unit
JPH0831296A (en) * 1994-07-14 1996-02-02 Fuji Electric Co Ltd Circuit breaker
JP4438102B2 (en) * 1997-12-02 2010-03-24 日本ゼオン株式会社 Binder for battery, slurry for battery electrode, electrode for lithium secondary battery, and lithium secondary battery

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB855730A (en) * 1957-03-27 1960-12-07 Chilton Electric Products Ltd Improvements in and relating to electrical circuit-breakers
JPS5882441A (en) * 1981-11-12 1983-05-18 三菱電機株式会社 Switching unit
US5281776A (en) * 1991-10-15 1994-01-25 Merlin Gerin Multipole circuit breaker with single-pole units
JPH05303930A (en) * 1992-02-26 1993-11-16 Mitsubishi Electric Corp Circuit breaker

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 102 (E - 1511) 18 February 1994 (1994-02-18) *
See also references of WO03065396A1 *

Also Published As

Publication number Publication date
EP1471553A1 (en) 2004-10-27
CN1253909C (en) 2006-04-26
EP1471553B1 (en) 2006-05-17
KR20030090691A (en) 2003-11-28
CN1494727A (en) 2004-05-05
JPWO2003065396A1 (en) 2005-05-26
DE60211562T2 (en) 2007-04-26
KR100552413B1 (en) 2006-02-16
ES2262784T3 (en) 2006-12-01
DE60211562D1 (en) 2006-06-22
TW540078B (en) 2003-07-01
WO2003065396A1 (en) 2003-08-07
JP4138665B2 (en) 2008-08-27

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