DE2940706C2 - - Google Patents

Info

Publication number
DE2940706C2
DE2940706C2 DE2940706A DE2940706A DE2940706C2 DE 2940706 C2 DE2940706 C2 DE 2940706C2 DE 2940706 A DE2940706 A DE 2940706A DE 2940706 A DE2940706 A DE 2940706A DE 2940706 C2 DE2940706 C2 DE 2940706C2
Authority
DE
Germany
Prior art keywords
magnetic yoke
overcurrent
switch
thickness
armature
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
Application number
DE2940706A
Other languages
German (de)
English (en)
Other versions
DE2940706A1 (de
Inventor
John A. Beaver Pa. Us Wafer
William Ellsworth Beaver Falls Pa. Us Beatty Jun.
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.)
CBS Corp
Original Assignee
Westinghouse 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of DE2940706A1 publication Critical patent/DE2940706A1/de
Application granted granted Critical
Publication of DE2940706C2 publication Critical patent/DE2940706C2/de
Granted 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
    • H01H71/2454—Electromagnetic mechanisms characterised by the magnetic circuit or active magnetic elements
    • 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
    • H01H71/2472—Electromagnetic mechanisms with rotatable armatures

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
DE19792940706 1978-10-16 1979-10-08 Ueberstromselbstschalter mit elektromagnetischer ausloeseeinrichtung Granted DE2940706A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/952,035 US4220935A (en) 1978-10-16 1978-10-16 Current limiting circuit breaker with high speed magnetic trip device

Publications (2)

Publication Number Publication Date
DE2940706A1 DE2940706A1 (de) 1980-04-24
DE2940706C2 true DE2940706C2 (US07943777-20110517-C00090.png) 1989-11-02

Family

ID=25492516

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792940706 Granted DE2940706A1 (de) 1978-10-16 1979-10-08 Ueberstromselbstschalter mit elektromagnetischer ausloeseeinrichtung

Country Status (10)

Country Link
US (1) US4220935A (US07943777-20110517-C00090.png)
JP (1) JPH0127250Y2 (US07943777-20110517-C00090.png)
AU (1) AU531263B2 (US07943777-20110517-C00090.png)
CA (1) CA1116211A (US07943777-20110517-C00090.png)
DE (1) DE2940706A1 (US07943777-20110517-C00090.png)
ES (1) ES8100550A1 (US07943777-20110517-C00090.png)
FR (1) FR2439471A1 (US07943777-20110517-C00090.png)
GB (1) GB2034119B (US07943777-20110517-C00090.png)
IT (1) IT1124343B (US07943777-20110517-C00090.png)
ZA (1) ZA795248B (US07943777-20110517-C00090.png)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276526A (en) * 1980-01-28 1981-06-30 General Electric Company Miniature current limiting circuit breaker
DE3169025D1 (en) * 1980-10-17 1985-03-28 Sprecher & Schuh Ag Circuit-breaker protecting against overcurrents
US4598186A (en) * 1983-05-09 1986-07-01 Square D Company Vent arrangement for high amperage molded case circuit breaker
US4680562A (en) * 1985-07-29 1987-07-14 Westinghouse Electric Corp. Integral circuit interrupter with separable modules
US4683451A (en) * 1986-03-14 1987-07-28 Westinghouse Electric Corp. Circuit breaker with trip delay magnetic circuit
US4719438A (en) * 1986-09-30 1988-01-12 Westinghouse Electric Corp. Circuit breaker with fast trip unit
US4862131A (en) * 1988-10-11 1989-08-29 Square D Company Trip crossbar translation to prevent bimetal overstressing in a circuit breaker
US5872495A (en) * 1997-12-10 1999-02-16 Siemens Energy & Automation, Inc. Variable thermal and magnetic structure for a circuitbreaker trip unit
US5886599A (en) * 1997-12-15 1999-03-23 Eaton Corporation Molded case circuit breaker having an improved electromagnetic trip
US6747534B1 (en) 1999-08-18 2004-06-08 Eaton Corporation Circuit breaker with dial indicator for magnetic trip level adjustment
US6586693B2 (en) * 2000-03-17 2003-07-01 General Electric Company Self compensating latch arrangement
US9899176B2 (en) 2016-04-07 2018-02-20 General Electric Company Self-resetting biasing devices for current limiting circuit breaker trip systems

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2412304A (en) * 1944-08-11 1946-12-10 Staley Marcellus Electromagnet
US3179767A (en) * 1956-06-21 1965-04-20 Wadsworth Electric Mfg Co Circuit breaker with improved electromagnetic tripping device
US3296564A (en) * 1963-08-30 1967-01-03 Westinghouse Electric Corp Circuit breaker with thermal and magnetic trip means
NL142271B (nl) * 1967-01-27 1974-05-15 Terasaki Denki Sangyo Kk Automatische schakelinrichting met beweegbare contactstangen openend onder invloed van elektrodynamische krachten.
US3646488A (en) * 1969-11-05 1972-02-29 Tokyo Shibaura Electric Co Electric circuit breaker
US3646489A (en) * 1970-09-23 1972-02-29 Gen Electric Circuit breaker having thermal and magnetic actuation with improved magnetic trip

Also Published As

Publication number Publication date
FR2439471B1 (US07943777-20110517-C00090.png) 1984-11-16
IT7941625A0 (it) 1979-10-15
FR2439471A1 (fr) 1980-05-16
AU5168079A (en) 1980-04-24
CA1116211A (en) 1982-01-12
GB2034119A (en) 1980-05-29
JPS5559437U (US07943777-20110517-C00090.png) 1980-04-22
US4220935A (en) 1980-09-02
ZA795248B (en) 1980-09-24
IT1124343B (it) 1986-05-07
AU531263B2 (en) 1983-08-18
DE2940706A1 (de) 1980-04-24
ES485011A0 (es) 1980-11-01
GB2034119B (en) 1983-03-23
JPH0127250Y2 (US07943777-20110517-C00090.png) 1989-08-15
ES8100550A1 (es) 1980-11-01

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: DERZEIT KEIN VERTRETER BESTELLT

8339 Ceased/non-payment of the annual fee