GB674520A - Improvements in or relating to electric circuit breakers embodying overload trip devices - Google Patents

Improvements in or relating to electric circuit breakers embodying overload trip devices

Info

Publication number
GB674520A
GB674520A GB25580/50A GB2558050A GB674520A GB 674520 A GB674520 A GB 674520A GB 25580/50 A GB25580/50 A GB 25580/50A GB 2558050 A GB2558050 A GB 2558050A GB 674520 A GB674520 A GB 674520A
Authority
GB
United Kingdom
Prior art keywords
bimetal
tripping
circuit breakers
relating
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
GB25580/50A
Other languages
English (en)
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.)
Westinghouse Electric International Co
Original Assignee
Westinghouse Electric International Co
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 International Co filed Critical Westinghouse Electric International Co
Publication of GB674520A publication Critical patent/GB674520A/en
Expired 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
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms
    • H01H71/405—Combined electrothermal and electromagnetic mechanisms in which a bimetal forms the inductor for the electromagnetic mechanism
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
GB25580/50A 1949-12-10 1950-10-20 Improvements in or relating to electric circuit breakers embodying overload trip devices Expired GB674520A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US132342A US2588497A (en) 1949-12-10 1949-12-10 Circuit breaker

Publications (1)

Publication Number Publication Date
GB674520A true GB674520A (en) 1952-06-25

Family

ID=22453576

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25580/50A Expired GB674520A (en) 1949-12-10 1950-10-20 Improvements in or relating to electric circuit breakers embodying overload trip devices

Country Status (4)

Country Link
US (1) US2588497A (en:Method)
BE (1) BE499918A (en:Method)
FR (1) FR1030716A (en:Method)
GB (1) GB674520A (en:Method)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1149803B (de) * 1961-06-27 1963-06-06 Licentia Gmbh Leistungsschalter mit thermischer und magnetischer UEberstromausloesung
GB2227606A (en) * 1988-12-15 1990-08-01 Chance Co Ab Latch and trip mechanism

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2673908A (en) * 1951-12-29 1954-03-30 Ite Circuit Breaker Ltd Instantaneous trip circuit breaker
US2876308A (en) * 1953-08-19 1959-03-03 Fed Electric Prod Co Circuit breakers

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2027238A (en) * 1930-11-26 1936-01-07 Westinghouse Electric & Mfg Co Circuit breaker
DE616133C (de) * 1932-03-23 1935-07-20 Siemens Schuckertwerke Akt Ges Elektrischer Schalter mit elektromagnetischer und elektrothermischer Ausloesung und Momentein- und -ausschaltung mittels eines Schnappfedermechanismus
US2035743A (en) * 1934-03-29 1936-03-31 Bulldog Electric Prod Co Circuit breaker
US2184372A (en) * 1937-01-27 1939-12-26 Gen Electric Circuit breaker
US2328458A (en) * 1940-11-07 1943-08-31 Square D Co Circuit breaker
US2360684A (en) * 1941-10-30 1944-10-17 Westinghouse Electric & Mfg Co Circuit breaker
US2416163A (en) * 1942-10-30 1947-02-18 Westinghouse Electric Corp Shockproof circuit breaker
US2439511A (en) * 1944-04-10 1948-04-13 Frank Adam Electric Co Latching or tripping mechanism of circuit breakers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1149803B (de) * 1961-06-27 1963-06-06 Licentia Gmbh Leistungsschalter mit thermischer und magnetischer UEberstromausloesung
GB2227606A (en) * 1988-12-15 1990-08-01 Chance Co Ab Latch and trip mechanism
GB2227606B (en) * 1988-12-15 1992-11-25 Chance Co Ab Sensitive latch and trip mechanism

Also Published As

Publication number Publication date
BE499918A (en:Method)
US2588497A (en) 1952-03-11
FR1030716A (fr) 1953-06-16

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