GB1197705A - Circuit Breaker with Improved Contact Structure. - Google Patents

Circuit Breaker with Improved Contact Structure.

Info

Publication number
GB1197705A
GB1197705A GB955/69A GB95569A GB1197705A GB 1197705 A GB1197705 A GB 1197705A GB 955/69 A GB955/69 A GB 955/69A GB 95569 A GB95569 A GB 95569A GB 1197705 A GB1197705 A GB 1197705A
Authority
GB
United Kingdom
Prior art keywords
arcing
contact
arms
circuit
main
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
GB955/69A
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 GB1197705A publication Critical patent/GB1197705A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H9/38—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H9/383—Arcing contact pivots relative to the movable contact assembly
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts 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
    • H01H1/226—Contacts 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts 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
    • H01H1/226—Contacts 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
    • H01H2001/228—Contacts 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
    • 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
    • H01H9/38—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H9/386—Arcing contact pivots relative to the fixed contact assembly

Abstract

1,197,705. Automatic circuit - breakers. WESTINGHOUSE ELECTRIC CORP. 7 Jan., 1969 [24 Jan., 1968], No. 955/69. Heading H1N. In a circuit-breaker having a movable contact structure 95 comprising a conducting arcing contact arm 96 and main contact arms 99 mounted for limited relative movement upon contact actuating movement of the structure 95, a U-shaped metal separating member 117 has legs 119 preventing the adjacent arms 99 from frictionally engaging the arcing contact arm 96 under the action of magnetic forces resulting from concurrent flow of current through the arcing and main contact arms in the same direction. Insulating spacers 125 separate the main contact arms 99 and cooperate with member 117. to define spaces accommodating the contact pressure springs 121, 123, of arms 99. A single operating mechanism 53 controls all three pole units of the circuit-breaker. During opening, main contacts 131, 33 open first, followed by arcing contacts 135, 29, then arcing contacts 135, 137, and lastly main contacts 133, 43. These features of the circuit-breaker are claimed in Specification 1,197,706. Separating member 117 may be of magnetic iron and attract an armature 167, Figs. 10, 11 (not shown), attached to arcing contact arm 96, to reinforce contact pressure and offset blow-off forces as the current increases towards a tripping valve. Specification 1,137,012 has many features disclosed in this Specification.
GB955/69A 1968-01-24 1969-01-07 Circuit Breaker with Improved Contact Structure. Expired GB1197705A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70024868A 1968-01-24 1968-01-24

Publications (1)

Publication Number Publication Date
GB1197705A true GB1197705A (en) 1970-07-08

Family

ID=24812767

Family Applications (1)

Application Number Title Priority Date Filing Date
GB955/69A Expired GB1197705A (en) 1968-01-24 1969-01-07 Circuit Breaker with Improved Contact Structure.

Country Status (4)

Country Link
US (1) US3560683A (en)
JP (2) JPS4825585B1 (en)
FR (1) FR2000676A1 (en)
GB (1) GB1197705A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2756741A1 (en) * 1976-12-30 1978-07-06 Westinghouse Electric Corp ELECTRICAL SWITCHGEAR WITH MAGNETIC CONTACT PRESSURE AMPLIFIER
EP0727805A2 (en) * 1995-02-16 1996-08-21 Siemens Aktiengesellschaft Contact lever unit for low voltage circuit breaker

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1312156A (en) * 1970-10-29 1973-04-04 Dorman Smith Switchgear Ltd Electrical circuit breakers and isolators
US3729606A (en) * 1972-03-07 1973-04-24 Gen Electric Electric circuit breaker with means for promoting current transfer to arcing contacts
US3770922A (en) * 1972-07-27 1973-11-06 Ite Imperial Corp Circuit breaker contact structure
US4240053A (en) * 1976-12-30 1980-12-16 Westinghouse Electric Corp. Circuit breaker utilizing improved current carrying conductor system
US4484164A (en) * 1983-03-28 1984-11-20 Siemens-Allis, Inc. Braidless movable contact with wiping action
US4926016A (en) * 1988-09-08 1990-05-15 Siemens Energy & Automation, Inc. Moving contact blade barrier
US4871889A (en) * 1988-09-21 1989-10-03 Siemens Energy & Automation, Inc. Arcing contact assembly for a circuit breaker
US5160817A (en) * 1990-11-21 1992-11-03 Automatic Switch Company Electrical switch contact arrangement having quick break arcing contacts
JP3972782B2 (en) * 2002-09-26 2007-09-05 富士電機機器制御株式会社 Circuit breaker
JP4321296B2 (en) * 2004-02-19 2009-08-26 富士電機機器制御株式会社 Repulsive circuit breaker contactor device
CN105405686B (en) * 2015-12-14 2017-12-29 常熟开关制造有限公司(原常熟开关厂） A kind of switching device
CN116613006B (en) * 2023-05-21 2024-01-30 江苏云峰科技股份有限公司 Energy storage circuit breaker dynamic management system based on energy storage data analysis

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1274733A (en) * 1913-08-11 1918-08-06 Westinghouse Electric & Mfg Co Circuit-interrupter.
US1480970A (en) * 1920-11-19 1924-01-15 Electric switch
US1918232A (en) * 1932-07-26 1933-07-11 Westinghouse Electric & Mfg Co Circuit interrupter
US2281752A (en) * 1939-07-27 1942-05-05 Westinghouse Electric & Mfg Co Circuit breaker
BE510633A (en) * 1951-09-19
US2814764A (en) * 1954-01-20 1957-11-26 Fligue Electro-magnetic devices
US3065317A (en) * 1960-09-29 1962-11-20 Gen Electric Alternating current circuit interrupter
US3263042A (en) * 1963-02-18 1966-07-26 Westinghouse Electric Corp Electric control device with electromagnetic contact-biasing means
US3402274A (en) * 1965-10-01 1968-09-17 Square D Co Contact structure for a power circuit breaker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2756741A1 (en) * 1976-12-30 1978-07-06 Westinghouse Electric Corp ELECTRICAL SWITCHGEAR WITH MAGNETIC CONTACT PRESSURE AMPLIFIER
EP0727805A2 (en) * 1995-02-16 1996-08-21 Siemens Aktiengesellschaft Contact lever unit for low voltage circuit breaker
EP0727805A3 (en) * 1995-02-16 1999-07-21 Siemens Aktiengesellschaft Contact lever unit for low voltage circuit breaker

Also Published As

Publication number Publication date
JPS4825585B1 (en) 1973-07-30
US3560683A (en) 1971-02-02
FR2000676A1 (en) 1969-09-12
JPS49951B1 (en) 1974-01-10

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Legal Events

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