ES424701A1 - Circuit breaker trip and latch mechanism - Google Patents

Circuit breaker trip and latch mechanism

Info

Publication number
ES424701A1
ES424701A1 ES424701A ES424701A ES424701A1 ES 424701 A1 ES424701 A1 ES 424701A1 ES 424701 A ES424701 A ES 424701A ES 424701 A ES424701 A ES 424701A ES 424701 A1 ES424701 A1 ES 424701A1
Authority
ES
Spain
Prior art keywords
lever
circuit breaker
trip
latch lever
latch mechanism
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
ES424701A
Other languages
Spanish (es)
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 ES424701A1 publication Critical patent/ES424701A1/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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/505—Latching devices between operating and release 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/505—Latching devices between operating and release mechanism
    • H01H2071/506—Latching devices between operating and release mechanism using balls or rollers in the latching device
    • 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/505—Latching devices between operating and release mechanism
    • H01H2071/508—Latching devices between operating and release mechanism with serial latches, e.g. primary latch latched by secondary latch for requiring a smaller trip force
    • 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
    • H01H2071/7481—Means for adjusting the conditions under which the device will function to provide protection with indexing means for magnetic or thermal tripping adjustment knob
    • 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
    • H01H71/128—Manual release or trip mechanisms, e.g. for test purposes

Landscapes

  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Trip Switchboards (AREA)

Abstract

A circuit breaker with a thermal and magnetic tripping mechanism for releasing the separable contacts of the circuit breaker in response to overload currents. The tripping mechanism comprising a trip bar responsive indirectly to the overload current for releasing a trip lever which in turn releases a latch lever. The latch lever and trip lever being pivoted on spaced pivot points and the trip lever having a roller mounted thereon for retaining the latch lever in the latched position and for rolling out of engagement with the latch lever when the trip lever is released, whereby shorter levers and less force are required to actuate the mechanism.
ES424701A 1973-03-27 1974-03-27 Circuit breaker trip and latch mechanism Expired ES424701A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00345396A US3810051A (en) 1973-03-27 1973-03-27 Circuit breaker trip and latch mechanism

Publications (1)

Publication Number Publication Date
ES424701A1 true ES424701A1 (en) 1976-10-16

Family

ID=23354874

Family Applications (1)

Application Number Title Priority Date Filing Date
ES424701A Expired ES424701A1 (en) 1973-03-27 1974-03-27 Circuit breaker trip and latch mechanism

Country Status (10)

Country Link
US (1) US3810051A (en)
BE (1) BE812746A (en)
BR (1) BR7402410D0 (en)
CA (1) CA999902A (en)
DE (2) DE2413499A1 (en)
ES (1) ES424701A1 (en)
FR (1) FR2223824A1 (en)
GB (1) GB1461814A (en)
IT (1) IT1012560B (en)
ZA (1) ZA741620B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5142259A (en) * 1991-05-16 1992-08-25 General Electric Company Molded case circuit breaker with low friction latch arrangement
JP3900780B2 (en) * 2000-03-06 2007-04-04 富士電機機器制御株式会社 Circuit breaker
EP2472550B1 (en) 2010-12-29 2013-07-17 ABB Technology AG A latching apparatus and an operating mechanism with such a latching apparatus
HUE045142T2 (en) 2016-10-25 2019-12-30 Abb Schweiz Ag A latching device and an operating mechanism with such a latching device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2051224A (en) * 1935-08-02 1936-08-18 Rape Alvin Continuous rail
US2794881A (en) * 1954-07-22 1957-06-04 Gen Electric Circuit breaker operating mechanism
US3460075A (en) * 1967-03-07 1969-08-05 Westinghouse Electric Corp Circuit breaker with improved latch and trip structures
US3657672A (en) * 1970-09-24 1972-04-18 Westinghouse Electric Corp Circuit breaker with manual trip structure

Also Published As

Publication number Publication date
FR2223824A1 (en) 1974-10-25
BR7402410D0 (en) 1974-11-19
DE2413499A1 (en) 1974-10-10
AU6685874A (en) 1975-09-25
ZA741620B (en) 1975-02-26
GB1461814A (en) 1977-01-19
CA999902A (en) 1976-11-16
IT1012560B (en) 1977-03-10
DE7409789U (en) 1974-07-18
BE812746A (en) 1974-09-23
US3810051A (en) 1974-05-07

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