GB1426589A - Circuit breaker with barrier - Google Patents

Circuit breaker with barrier

Info

Publication number
GB1426589A
GB1426589A GB2373473A GB2373473A GB1426589A GB 1426589 A GB1426589 A GB 1426589A GB 2373473 A GB2373473 A GB 2373473A GB 2373473 A GB2373473 A GB 2373473A GB 1426589 A GB1426589 A GB 1426589A
Authority
GB
United Kingdom
Prior art keywords
housing
barrier
movable
circuit breaker
trip device
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
GB2373473A
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 GB1426589A publication Critical patent/GB1426589A/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
    • H01H71/74—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
    • H01H2071/7472—Means for adjusting the conditions under which the device will function to provide protection with antitamper means for avoiding unauthorised setting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes

Abstract

1426589 Circuit breakers WESTINGHOUSE ELECTRIC CORP 18 May 1973 [1 June 1972] 23734/73 Heading H1N In a circuit breaker having within its housing a trip device with adjusting means 53 there is an adjusting tool access opening in the wall 9 of the housing adjacent the adjusting means 53, in which opening there is a barrier supported by the housing and comprising a fixed part 101 and a part 103 movable to close the opening. Both parts are retained in a groove 93 in the wall of the housing and initially the movable part of the barrier is in the open position so that adjustment of the trip device can be carried out. When adjustment is complete, this movable part is slid shut and a tang 105 snaps into interlocking engagement with the upper surface 106 of the fixed part of the barrier and retains the moving part in the shut position so that it cannot be opened from outside the housing. Vent openings 107, 109 are provided in the barrier parts. The circuit breaker is described as having thermal tripping means in the form of a bimetal strip 51 and also electromagnetic tripping means, the adjusting means 53 of the trip device being an adjustable belt through the bimetal strip which acts on a trip bar (49), Fig. 2, not shown. The movable contacts of all poles are pivoted on a common bar and rotate to make or break contact with a fixed contact in an arc extinguishing unit. The tripping means is connected via a toggle and overcentre spring to the movable contact, and a handle is provided for manual operation and resetting.
GB2373473A 1972-06-01 1973-05-18 Circuit breaker with barrier Expired GB1426589A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25859372A 1972-06-01 1972-06-01

Publications (1)

Publication Number Publication Date
GB1426589A true GB1426589A (en) 1976-03-03

Family

ID=22981258

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2373473A Expired GB1426589A (en) 1972-06-01 1973-05-18 Circuit breaker with barrier

Country Status (4)

Country Link
US (1) US3748620A (en)
BR (1) BR7303946D0 (en)
CA (1) CA950017A (en)
GB (1) GB1426589A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2641933B1 (en) * 1988-12-23 1996-06-07 Hager Electro HOUSING FOR MODULAR ELECTRICAL APPLIANCES AND SHUTTERING DEVICE FOR SUCH A HOUSING
US5910757A (en) * 1998-03-25 1999-06-08 Square D Company Phase barrier for use in a multiphase circuit breaker
US5990439A (en) * 1998-03-26 1999-11-23 Siemens Energy & Automation, Inc. Compartmentalized arc chamber
US5969308A (en) * 1998-04-02 1999-10-19 Siemens Energy & Automation, Inc. Rotary switch including spring biased knife blade contacts
US5945650A (en) * 1998-04-02 1999-08-31 Siemens Energy & Automation,Inc. Polyphase rotary switch including arc chamber system with arc grids, line shields and baffles
US6172585B1 (en) * 1999-08-27 2001-01-09 Eaton Corporation Circuit interrupter with base/cover attachment enabling venting
US6489867B1 (en) * 2002-05-22 2002-12-03 Eaton Corporation Separating pins for the shunt wires of a circuit breaker
US9281150B2 (en) * 2012-03-12 2016-03-08 Siemens Aktiengesellschaft Circuit breaker trip blocking apparatus, systems, and methods of operation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2642509A (en) * 1951-03-23 1953-06-16 Fed Electric Prod Co Automatic circuit breaker with calibration provision
US2786113A (en) * 1953-07-21 1957-03-19 Fed Electric Prod Co Calibration of circuit breaker mechanism within casing
US3258563A (en) * 1964-05-12 1966-06-28 Honeywell Inc Trip-free safety switch
NL141020B (en) * 1966-12-26 1974-01-15 Terasaki Denki Sangyo Kk ELECTRICAL, AUTOMATIC SWITCH WITH A PAIR OF SHUNT CONTACTS BRIDGEABLE BIMETAL STRIP.
US3575679A (en) * 1968-02-06 1971-04-20 Westinghouse Electric Corp Circuit breaker with improved trip adjustment means

Also Published As

Publication number Publication date
AU5551173A (en) 1974-11-14
BR7303946D0 (en) 1974-07-11
US3748620A (en) 1973-07-24
CA950017A (en) 1974-06-25

Similar Documents

Publication Publication Date Title
AU580554B2 (en) Selective solid state trip unit associated with a limiting circuit-breaker
GB1263819A (en) Circuit breaker with improved latch reset
PH16637A (en) Electromagnetically operated multi-pole circuit breaker
GB1426589A (en) Circuit breaker with barrier
GB1243475A (en) Molded-case electric circuit breaker with contact arm latch
GB778952A (en) Automatic electric circuit breakers
ES457461A1 (en) Combination cover interlock and trip actuator
GB1407067A (en) Circuit breakers
GB1442794A (en) Circuit interrupter protective device
GB1505981A (en) Multi-pole excess current switch
US2158387A (en) Electric switch
GB1461813A (en) Circuit interrupter tripping device
GB684868A (en) Improvements in automatic electric circuit-breakers
GB688649A (en) Improvements in current-responsive automatic electric circuit-breakers
KR900005519A (en) Electrical switchgear with cover interlock
GB1200477A (en) Thermally responsive switch
GB1340053A (en) Overload protection ofor electric motors
GB927374A (en) Automatic air circuit breaker
GB1355035A (en) Electric circuit breakers
GB737604A (en) Automatic electric circuit breakers
GB1251480A (en)
US2842641A (en) Circuit breaker
DE9211138U1 (en)
GB1414072A (en) Fused circuit greaker
GB1517197A (en) Circuit interrupting device

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920518