DE3879588D1 - RELEASE MAGNET FOR A CIRCUIT BREAKER. - Google Patents

RELEASE MAGNET FOR A CIRCUIT BREAKER.

Info

Publication number
DE3879588D1
DE3879588D1 DE8888730191T DE3879588T DE3879588D1 DE 3879588 D1 DE3879588 D1 DE 3879588D1 DE 8888730191 T DE8888730191 T DE 8888730191T DE 3879588 T DE3879588 T DE 3879588T DE 3879588 D1 DE3879588 D1 DE 3879588D1
Authority
DE
Germany
Prior art keywords
circuit breaker
release magnet
magnet
release
breaker
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.)
Expired - Fee Related
Application number
DE8888730191T
Other languages
German (de)
Inventor
Donald R Boyd
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of DE3879588D1 publication Critical patent/DE3879588D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part
    • H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
    • H01H71/322—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements with plunger type armature
    • 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
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/26—Electromagnetic mechanisms with windings acting in opposition
    • 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
    • H01H71/1054—Means for avoiding unauthorised release
DE8888730191T 1987-08-25 1988-08-24 RELEASE MAGNET FOR A CIRCUIT BREAKER. Expired - Fee Related DE3879588D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8929887A 1987-08-25 1987-08-25

Publications (1)

Publication Number Publication Date
DE3879588D1 true DE3879588D1 (en) 1993-04-29

Family

ID=22216845

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888730191T Expired - Fee Related DE3879588D1 (en) 1987-08-25 1988-08-24 RELEASE MAGNET FOR A CIRCUIT BREAKER.

Country Status (3)

Country Link
EP (1) EP0305321B1 (en)
CA (1) CA1294305C (en)
DE (1) DE3879588D1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4017743A1 (en) * 1989-06-23 1991-01-10 Kloeckner Moeller Elektrizit Rapid electromagnetic trip for low-voltage switchgear contacts - ensures positive tripping without rebound when overcurrent in coil augments force of spring opposing permanent magnet
FR2653610B1 (en) * 1989-10-25 1991-12-27 Etude Realisa Disjoncteurs SELECTIVE DIFFERENTIAL SWITCH WITH FAULT CURRENT.
FR2656953B1 (en) * 1990-01-05 1996-08-30 Merlin Gerin ELECTROMAGNETIC RELAY POLARIZED BY A PERMANENT MAGNET.
IT1249286B (en) * 1990-07-30 1995-02-22 Bticino Spa PERMANENT MAGNET RELEASE ELECTROMAGNET FOR AUTOMATIC SWITCHES
DE9115607U1 (en) * 1991-12-17 1992-02-13 Abb Patent Gmbh, 6800 Mannheim, De
DE4304921C1 (en) * 1993-02-18 1994-08-25 E I B S A Bistable magnetic drive for an electrical switch
DE4344143B4 (en) * 1993-12-23 2004-04-01 Moeller Gmbh Electromagnetic quick release for electrical switching devices
DE19522603A1 (en) * 1995-06-19 1997-01-09 Siemens Ag Protective device against overloading the switching contacts of a switching device
DE19915785A1 (en) * 1999-04-08 2000-10-12 Abb Patent Gmbh Electromagnetic release for an electrical switching device
DE10208703C1 (en) * 2002-02-25 2003-07-03 Siemens Ag Magnetic drive for MV load switch has drive rod coupled to soft magnetic armature displaced parallel to magnetic field provided by stationary magnetic body
CN104810217B (en) * 2015-04-28 2017-03-08 南京大全电气研究院有限公司 A kind of controllable electromagnetic trip gear for adding magnetic conductor and tripping method
CN110137044B (en) * 2019-05-30 2024-02-02 天津加美特电气股份有限公司 Intelligent circuit breaker with normally open and normally closed functions

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530414A (en) * 1969-02-26 1970-09-22 Westinghouse Electric Corp Circuit breaker with improved trip means
US4078219A (en) * 1976-02-12 1978-03-07 Westinghouse Electric Corporation Overcurrent latch for magnetic contactor
GB2122031B (en) * 1982-06-03 1985-10-30 Northern Eng Ind Electromagnetic release device
IT1161635B (en) * 1983-03-10 1987-03-18 Sace Spa AUTOMATIC LOCKING DEVICE FOR CINEMATISMS SUBJECT TO UNWANTED MECHANICAL STRESSES, APPLICABLE IN PARTICULAR TO ELECTRIC SWITCHES
US4641117A (en) * 1985-07-29 1987-02-03 General Electric Company Combined accessory and trip actuator unit for electronic circuit breakers

Also Published As

Publication number Publication date
EP0305321B1 (en) 1993-03-24
CA1294305C (en) 1992-01-14
EP0305321A1 (en) 1989-03-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee