GB529136A - Improvements in or relating to contact structures for electric circuit breakers - Google Patents

Improvements in or relating to contact structures for electric circuit breakers

Info

Publication number
GB529136A
GB529136A GB15271/39A GB1527139A GB529136A GB 529136 A GB529136 A GB 529136A GB 15271/39 A GB15271/39 A GB 15271/39A GB 1527139 A GB1527139 A GB 1527139A GB 529136 A GB529136 A GB 529136A
Authority
GB
United Kingdom
Prior art keywords
contact
arm
arcing
limbs
yoke
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
GB15271/39A
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 GB529136A publication Critical patent/GB529136A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H1/225—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 the supporting member being pivotable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts

Abstract

529,136. Air-break switches ; contact-members for switches. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. May 23, 1939, No. 15271. Convention date, May 31, 1938. [Class 38 (v)] A contact-arm 31, when closed, bridges contacts 19, 21, the latter having an extension 25 between the limbs of which is pivoted at 41 a yoke-shaped switch-member 29. A pin 47 interconnecting the limbs 33 of member 29 takes in a slot 65 in the contact-arm 31, and serves also as pivot for the yoke-shaped end 45 of an insulating rod 43, which is connected to a crank 49 on a squared part of a shaft 51 on which is also mounted an arm 57 connected to operating mechanism (not shown). The contact-pressure is imparted by a spring system 69 comprising concentric springs compressed between the arm 31 and member 29. When the mechanism is tripped and the opening spring (not shown) moves rod 43 to the right, pin 47 first moves to the end of slot 65 and then rotates arm 31 so that the upper contact 59 thereon rolls on contact 19 and causes engagement between arcing-tips 23, 63. During this movement, the lower contact 61 on the arm 31 disengages contact 21, the circuit being still made, however, by a flexible conductor 83. When the arm 31 engages the stop 81 in member 29, the two rotate together about pivot 41 and separate the arcing-tips. Since connection 83 is only operative during the opening and closing movements, it need only be of small section.
GB15271/39A 1938-05-31 1939-05-23 Improvements in or relating to contact structures for electric circuit breakers Expired GB529136A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US210971A US2241810A (en) 1938-05-31 1938-05-31 Circuit breaker

Publications (1)

Publication Number Publication Date
GB529136A true GB529136A (en) 1940-11-14

Family

ID=22785088

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15271/39A Expired GB529136A (en) 1938-05-31 1939-05-23 Improvements in or relating to contact structures for electric circuit breakers

Country Status (3)

Country Link
US (1) US2241810A (en)
FR (1) FR855400A (en)
GB (1) GB529136A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2664485A (en) * 1947-01-11 1953-12-29 Ite Circuit Breaker Ltd High-voltage circuit breaker
US2571933A (en) * 1948-07-30 1951-10-16 Westinghouse Electric Corp Air circuit breaker
US2546077A (en) * 1948-10-16 1951-03-20 Allis Chalmers Mfg Co Mechanically operated switch
DE1002837B (en) * 1953-08-31 1957-02-21 Elektrotechnisches Werk Electrical disconnector
DE1169546B (en) * 1960-01-13 1964-05-06 Driescher Spezialfab Fritz High-voltage disconnector with an adjustable actuation isolator
DE1187292B (en) * 1961-11-30 1965-02-18 Sachsenwerk Licht & Kraft Ag Multipole high-voltage disconnector
US3746819A (en) * 1972-08-11 1973-07-17 Gulton Ind Inc Contact assembly for switches

Also Published As

Publication number Publication date
US2241810A (en) 1941-05-13
FR855400A (en) 1940-05-09

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