GB1102829A - Contact structure for a power circuit breaker - Google Patents

Contact structure for a power circuit breaker

Info

Publication number
GB1102829A
GB1102829A GB28126/66A GB2812666A GB1102829A GB 1102829 A GB1102829 A GB 1102829A GB 28126/66 A GB28126/66 A GB 28126/66A GB 2812666 A GB2812666 A GB 2812666A GB 1102829 A GB1102829 A GB 1102829A
Authority
GB
United Kingdom
Prior art keywords
contact
contacts
main
pin
fingers
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
GB28126/66A
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.)
Schneider Electric USA Inc
Original Assignee
Square D 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 Square D Co filed Critical Square D Co
Publication of GB1102829A publication Critical patent/GB1102829A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/12Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/226Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/38Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H9/383Arcing contact pivots relative to the movable contact assembly
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/58Electric connections to or between contacts; Terminals
    • H01H1/5833Electric connections to or between contacts; Terminals comprising an articulating, sliding or rolling contact between movable contact and terminal
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/12Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/226Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars
    • H01H2001/228Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars with insulating spacers between the contact bars
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/12Automatic release mechanisms with or without manual release
    • H01H71/24Electromagnetic mechanisms
    • H01H71/2472Electromagnetic mechanisms with rotatable armatures

Landscapes

  • Breakers (AREA)

Abstract

1,102,829. Heavy current switches; switch contacts. SQUARE D CO. 23 June, 1966 [1 Oct., 1965], No. 28126/66. Heading HlN. A contact structure for a low-voltage power circuit-breaker includes a contact frame 80 pivoted on a conducting shaft 76 and carrying a main contact pivot-pin 87 on which pivot several movable main contact arms 109 and the two legs 114, 115 of a hinge fork 116 providing part of the operating member, the fork 116 carrying a pin 120 on which pivots a movable arcing contact arm 121, and the shaft 76 carrying spring-pressed pivotable conducting contact pressure fingers 90, 90a for biasing the movable contact arms 109, 121, respectively. Movement of the operating member 129/128/116 causes the arcing contacts 41, 122, to engage before the main contacts 51, 110, the arcing contact arm 121 rotating about its pivot-pin 120 against the bias of fingers 90a, and then the main contact arms 109 rotating about pivotpin 87 against the bias of fingers 90 after contacts 51, 110 have engaged. The contact pressure is determined by springs 102. Upon break, the main contacts 51, 110 separate first (Figs. 8, 9, not shown)' A conventional magnetic trip means (not shown) is used for actuation. Eleotrodynamic forces hold the contacts closed.
GB28126/66A 1965-10-01 1966-06-23 Contact structure for a power circuit breaker Expired GB1102829A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US491949A US3402274A (en) 1965-10-01 1965-10-01 Contact structure for a power circuit breaker

Publications (1)

Publication Number Publication Date
GB1102829A true GB1102829A (en) 1968-02-14

Family

ID=23954335

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28126/66A Expired GB1102829A (en) 1965-10-01 1966-06-23 Contact structure for a power circuit breaker

Country Status (2)

Country Link
US (1) US3402274A (en)
GB (1) GB1102829A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0360368A2 (en) * 1988-09-21 1990-03-28 Siemens Aktiengesellschaft Lever and abutting-contact arrangement for low-tension power switches with principal contacts and arcing contacts

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3560683A (en) * 1968-01-24 1971-02-02 Westinghouse Electric Corp Circuit breaker with improved contact structure
US3562459A (en) * 1968-10-24 1971-02-09 Westinghouse Electric Corp Circuit interrupter with improved contact structure
US3584170A (en) * 1968-10-24 1971-06-08 Westinghouse Electric Corp Circuit interrupter having an improved insulating support structure
GB1312156A (en) * 1970-10-29 1973-04-04 Dorman Smith Switchgear Ltd Electrical circuit breakers and isolators
DE3539788A1 (en) * 1985-11-07 1987-05-14 Siemens Ag CONTACT ARRANGEMENT WITH CONTACT LEVER INTERMEDIATE LAYERS
DE3539786A1 (en) * 1985-11-07 1987-05-14 Siemens Ag CONTACT ARRANGEMENT WITH CONTACT LEVERS RELATIVELY SWIVELED IN A HOLDER
SE457032B (en) * 1987-03-25 1988-11-21 Asea Ab ELECTRICAL CONNECTOR
US4926019A (en) * 1988-09-08 1990-05-15 Siemens Energy & Automation, Inc. Moving copper pivot
US5361051A (en) * 1988-12-16 1994-11-01 Siemens Energy & Automation, Inc. Pivoting circuit breaker contact arm assembly
US5160817A (en) * 1990-11-21 1992-11-03 Automatic Switch Company Electrical switch contact arrangement having quick break arcing contacts
US6570116B2 (en) * 2001-08-16 2003-05-27 Square D Company Current carrying assembly for a circuit breaker
FR2931583A1 (en) 2008-05-22 2009-11-27 Schneider Electric Ind Sas CONTACT DEVICE FOR RESISTIVE HIGH POWER SWITCH

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2302394A (en) * 1940-11-27 1942-11-17 Gen Electric Electric switch
US3218428A (en) * 1963-12-19 1965-11-16 Gen Electric Adjustable contact pressure switch mechanism
US3345486A (en) * 1964-10-29 1967-10-03 Westinghouse Electric Corp Blast-valve operation for gas-blast circuit breakers having two currentresponsive means

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0360368A2 (en) * 1988-09-21 1990-03-28 Siemens Aktiengesellschaft Lever and abutting-contact arrangement for low-tension power switches with principal contacts and arcing contacts
EP0360368A3 (en) * 1988-09-21 1991-11-21 Siemens Aktiengesellschaft Lever and abutting-contact arrangement for low-tension power switches with principal contacts and arcing contacts

Also Published As

Publication number Publication date
US3402274A (en) 1968-09-17

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