GB1078915A - Electrical switch - Google Patents

Electrical switch

Info

Publication number
GB1078915A
GB1078915A GB4180664A GB4180664A GB1078915A GB 1078915 A GB1078915 A GB 1078915A GB 4180664 A GB4180664 A GB 4180664A GB 4180664 A GB4180664 A GB 4180664A GB 1078915 A GB1078915 A GB 1078915A
Authority
GB
United Kingdom
Prior art keywords
blade
crank
follower
slot
switch
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
GB4180664A
Inventor
John Howard Myers
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.)
James R Kearney Corp
Original Assignee
James R Kearney 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
Priority to US402748A priority Critical patent/US3299230A/en
Application filed by James R Kearney Corp filed Critical James R Kearney Corp
Priority to GB4180664A priority patent/GB1078915A/en
Publication of GB1078915A publication Critical patent/GB1078915A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
    • H01H31/28—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact
    • H01H31/30—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact actuated through the movement of one or more insulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
    • H01H31/28—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact
    • H01H2031/286—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact wherein the contact is rotatable around its own longitudinal axis

Abstract

1,078,915. High voltage switches. JAMES R. KEARNEY CORPORATION OF CANADA Ltd. Oct. 13, 1964, No. 41806/64. Heading H2B. [Also in Division F2] The contact blade 17 of a highvoltage isolator is moved by means of a linkage first about a horizontal axis 15 into the closed position and then about its own longitudinal axis to make contact with the fixed contacts (50, 51), (Figs. 2, 3, not shown). The linkage comprises rods 24, 25 of adjustable length joined by universal couplings to the blade 17 and a rotatable member 21 mounted upon a crank 19 which is rotatable, by means of an insulator column, on a shaft 18; the rotatable member 21 is joined by a crank 33 to a link 34 rigidly carrying a cam follower 36 engaging a slot 31, 32 in a member 30, rigid with a fixed part of the switch. In rotating crank 19 anticlockwise to close the switch slot 31 and follower 36 initially prevent rotation of member 21 so that blade 17 is simply pivoted about 15 until follower 36 enters the opening 32 whereupon further rotation of crank 19 rotates the member 21 and also the blade 17. A coiled spring (60), (Fig. 7, not shown), acts to counterbalance the weight of blade 17. The switch can be modified to engage blade 17 with fixed contacts in both positions by forming a second opening 32 at the other end of slot 31. In a second embodiment (Figs. 9-16, not shown), a geared drive is inserted between shaft 18 and the insulator column and the counterbalance is achieved by a leaf spring (72); the cam follower 36 is permitted to rotate and member 21 is prevented from rotating in the initial movement of crank 19 by means of a second cam and follower (85, 89). The linkage is arranged to pass over centre in its extreme position to prevent reverse movement of blade 17. Connection to blade 17 may be established by a second clip contact (not shown), engaging an extension of the lower end of blade 17. Connection to the fixed contacts (50, 51), (Fig. 9, not shown), is established through a voltage grading ring (79).
GB4180664A 1964-10-09 1964-10-13 Electrical switch Expired GB1078915A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US402748A US3299230A (en) 1964-10-09 1964-10-09 Electrical switch having a pivotable and rotatable blade and switch operating mechanism therefor
GB4180664A GB1078915A (en) 1964-10-13 1964-10-13 Electrical switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4180664A GB1078915A (en) 1964-10-13 1964-10-13 Electrical switch

Publications (1)

Publication Number Publication Date
GB1078915A true GB1078915A (en) 1967-08-09

Family

ID=10421453

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4180664A Expired GB1078915A (en) 1964-10-09 1964-10-13 Electrical switch

Country Status (1)

Country Link
GB (1) GB1078915A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2879146A1 (en) * 2013-11-29 2015-06-03 Schneider Electric Industries SAS A linkage for actuating a disconnector switch blade for synchronising a sbs with disconnector switch of rmu

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2879146A1 (en) * 2013-11-29 2015-06-03 Schneider Electric Industries SAS A linkage for actuating a disconnector switch blade for synchronising a sbs with disconnector switch of rmu

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