ZA983066B - Thermal trip unit with magnetic shield and circuit breaker incorporating same - Google Patents

Thermal trip unit with magnetic shield and circuit breaker incorporating same

Info

Publication number
ZA983066B
ZA983066B ZA983066A ZA983066A ZA983066B ZA 983066 B ZA983066 B ZA 983066B ZA 983066 A ZA983066 A ZA 983066A ZA 983066 A ZA983066 A ZA 983066A ZA 983066 B ZA983066 B ZA 983066B
Authority
ZA
South Africa
Prior art keywords
circuit breaker
magnetic shield
trip unit
incorporating same
thermal trip
Prior art date
Application number
ZA983066A
Other languages
English (en)
Inventor
Kenneth Daniel Kolberg
Mark Allan Juds
Original Assignee
Eaton 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 Eaton Corp filed Critical Eaton Corp
Publication of ZA983066B publication Critical patent/ZA983066B/xx

Links

Classifications

    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/121—Protection of release 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
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7427—Adjusting only the electrothermal mechanism
    • H01H71/7436—Adjusting the position (or prestrain) of the bimetal
    • 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
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7427—Adjusting only the electrothermal mechanism
    • H01H71/7445—Poly-phase adjustment
ZA983066A 1997-04-14 1998-04-09 Thermal trip unit with magnetic shield and circuit breaker incorporating same ZA983066B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/839,530 US5894259A (en) 1997-04-14 1997-04-14 Thermal trip unit with magnetic shield and circuit breaker incorporating same

Publications (1)

Publication Number Publication Date
ZA983066B true ZA983066B (en) 1998-11-03

Family

ID=25279988

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA983066A ZA983066B (en) 1997-04-14 1998-04-09 Thermal trip unit with magnetic shield and circuit breaker incorporating same

Country Status (4)

Country Link
US (1) US5894259A (xx)
EP (1) EP0872866A3 (xx)
CA (1) CA2234699C (xx)
ZA (1) ZA983066B (xx)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6030114A (en) * 1997-09-30 2000-02-29 Siemens Energy & Automation, Inc. Method for thermally calibrating circuit breaker trip mechanism and associated trip mechanism
JPH11273519A (ja) * 1998-03-25 1999-10-08 Hosiden Corp サーキットプロテクタとそれに用いる弾性熱応動板の製法
US6104273A (en) * 1999-06-09 2000-08-15 General Electric Company Calibration assembly and process for use in a circuit protective device
US6188302B1 (en) * 1999-08-30 2001-02-13 Eaton Corporation Circuit breaker with two piece bell accessory lever with overtravel
US6181226B1 (en) 1999-11-05 2001-01-30 Siemens Energy & Automation, Inc. Bi-metal trip unit for a molded case circuit breaker
WO2001037304A1 (en) * 1999-11-16 2001-05-25 Federal Elektrik Yatirim Ve Ticaret A.Ş. Miniature circuit breaker (automatic fuse) with pressed box
JP2002093298A (ja) * 2000-09-18 2002-03-29 Fuji Electric Co Ltd 回路しゃ断器
US6445274B1 (en) * 2000-11-10 2002-09-03 Eaton Corporation Circuit interrupter with thermal trip adjustability
GB0100756D0 (en) 2001-01-11 2001-02-21 Powderject Res Ltd Needleless syringe
ATE368935T1 (de) * 2001-01-31 2007-08-15 Siemens Ag Justiervorrichtung für einen thermischen auslöser
DE50206909D1 (de) * 2001-07-02 2006-06-29 Siemens Ag Justiervorrichtung fuer einen thermischen ausloeser
US6919518B2 (en) * 2002-02-19 2005-07-19 Onan Corporation Phase flux barriers for transfer switch
US6661329B1 (en) 2002-06-13 2003-12-09 Eaton Corporation Adjustable thermal trip assembly for a circuit breaker
US6972649B1 (en) * 2005-01-07 2005-12-06 General Electric Company Method and apparatus for shielding and armature from a magnetic flux
DE102007010944A1 (de) * 2006-06-14 2007-12-20 Moeller Gmbh Thermischer und/oder magnetischer Überlastauslöser
US7518482B2 (en) * 2006-10-10 2009-04-14 Dennis William Fleege Trip unit having a plurality of stacked bimetal elements
JP4889555B2 (ja) * 2007-04-23 2012-03-07 三菱電機株式会社 回路遮断器
DE102008017472A1 (de) * 2007-04-28 2008-11-06 Abb Ag Installationsschaltgerät
KR100905021B1 (ko) * 2007-08-07 2009-06-30 엘에스산전 주식회사 열동형 과부하 트립 장치 및 그의 트립 감도 조정 방법
KR100881365B1 (ko) * 2007-08-07 2009-02-02 엘에스산전 주식회사 열동형 과부하 보호장치의 트립 감도 조정 방법
AT509407A1 (de) * 2008-03-05 2011-08-15 Moeller Gebaeudeautomation Gmbh Schaltgerät
AT509280A1 (de) * 2008-03-05 2011-07-15 Moeller Gebaeudeautomation Gmbh Schaltgerät
KR101096988B1 (ko) * 2008-12-31 2011-12-20 엘에스산전 주식회사 트립 장치
JP4706772B2 (ja) * 2009-03-27 2011-06-22 富士電機機器制御株式会社 熱動形過負荷継電器
JP4906881B2 (ja) * 2009-03-27 2012-03-28 富士電機機器制御株式会社 熱動形過負荷継電器
JP2010232058A (ja) * 2009-03-27 2010-10-14 Fuji Electric Fa Components & Systems Co Ltd 熱動形過負荷継電器
KR101759594B1 (ko) * 2011-06-24 2017-07-20 엘에스산전 주식회사 회로차단기
US8531256B2 (en) 2011-09-27 2013-09-10 Eaton Corporation Tool and calibration machine for calibrating a thermal trip apparatus of a circuit interrupter, and improved method
DE102012024608B4 (de) * 2012-12-15 2015-04-16 Ellenberger & Poensgen Gmbh Schutzschalter und Adapter für einen Schutzschalter
US20140176293A1 (en) * 2012-12-21 2014-06-26 Schneider Electric USA, Inc. Mechanical flexible thermal trip unit for miniature circuit breakers
CN205789807U (zh) * 2016-06-27 2016-12-07 施耐德电器工业公司 一种热脱扣补偿结构
GB2591796A (en) * 2020-02-07 2021-08-11 Eaton Intelligent Power Ltd Circuit breaker and method for operating a circuit breaker

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3636410A (en) * 1970-07-24 1972-01-18 Franco Pardini Automatic molded case circuit breaker with time-delay overcurrent tripping
FR2291603A1 (fr) * 1974-11-15 1976-06-11 Saparel Dispositif de protection contre les surcharges de courant
US4503408A (en) * 1982-11-10 1985-03-05 Westinghouse Electric Corp. Molded case circuit breaker apparatus having trip bar with flexible armature interconnection
US4630019A (en) * 1984-09-28 1986-12-16 Westinghouse Electric Corp. Molded case circuit breaker with calibration adjusting means for a bimetal
US4683451A (en) * 1986-03-14 1987-07-28 Westinghouse Electric Corp. Circuit breaker with trip delay magnetic circuit
US4697163A (en) * 1986-03-27 1987-09-29 Westinghouse Electric Corp. Circuit breaker with impact trip delay
US4719438A (en) * 1986-09-30 1988-01-12 Westinghouse Electric Corp. Circuit breaker with fast trip unit
US4922220A (en) * 1989-03-22 1990-05-01 Westinghouse Electric Corp. Adjustable circuit breaker thermal trip unit
US4951015A (en) * 1989-10-05 1990-08-21 Westinghouse Electric Corp. Circuit breaker with moving magnetic core for low current magnetic trip
US5184099A (en) * 1991-06-13 1993-02-02 Siemens Energy & Automation, Inc. Circuit breaker with dual movable contacts
US5225800A (en) * 1992-02-25 1993-07-06 General Electric Company Thermal-magnetic trip unit with low current response
US5608367A (en) * 1995-11-30 1997-03-04 Eaton Corporation Molded case circuit breaker with interchangeable trip unit having bimetal assembly which registers with permanent heater transformer airgap

Also Published As

Publication number Publication date
CA2234699C (en) 2007-03-27
CA2234699A1 (en) 1998-10-14
US5894259A (en) 1999-04-13
EP0872866A2 (en) 1998-10-21
EP0872866A3 (en) 1999-11-03

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