GB882817A - Improvements in and relating to electric switches and circuit-breakers - Google Patents

Improvements in and relating to electric switches and circuit-breakers

Info

Publication number
GB882817A
GB882817A GB3692556A GB3692556A GB882817A GB 882817 A GB882817 A GB 882817A GB 3692556 A GB3692556 A GB 3692556A GB 3692556 A GB3692556 A GB 3692556A GB 882817 A GB882817 A GB 882817A
Authority
GB
United Kingdom
Prior art keywords
isolators
dashpot
pivot
piston
pull
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
GB3692556A
Inventor
Albert Roxburgh
Albert Leigh
Jerrold Joseph Fellerman
Robert Alfred Hall
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB3692556A priority Critical patent/GB882817A/en
Publication of GB882817A publication Critical patent/GB882817A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H33/42—Driving mechanisms
    • 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
    • H01H33/008—Pedestal mounted switch gear combinations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
    • H01H3/605—Mechanical arrangements for preventing or damping vibration or shock making use of a fluid damper
    • 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
    • H01H33/121—Load break switches
    • H01H33/125—Load break switches comprising a separate circuit breaker
    • H01H33/128—Load break switches comprising a separate circuit breaker being operated by a separate mechanism interlocked with the sectionalising mechanism
    • 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
    • H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc

Landscapes

  • Mechanisms For Operating Contacts (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

882,817. Gas-blast switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 3, 1958 [Dec. 3, 1956], No. 36925/56. Class 38 (5). Contact members particularly for isolators used with gas - blast circuitbreakers are operated by pull-rods which are in tension during both opening and closing operations. As applied to the breaker described in Specification 882,816, rotatable shafts A1 A2, B1, B2, C1, C2 which are coupled to contact arms (not shown) are interconnected by pull-rods 28 . . . 32 having a pin and clevis connections at each end, with cranks 10, 17, 24 . . . 27 on the shafts. To open the isolators the piston of an air cylinder 23 drives a lever 21 anticlockwise about its pivot 22; a dashpot 34 controlling the speed of opening. To close the isolators the piston of a cylinder 16 drives the lever 14 clockwise about its pivot 15; a dashpot 35 controlling the speed of closing. With the bars 28. . . 32 in tension there is no backlash to be taken up on operation. Specification 882,818 also is referred to.
GB3692556A 1956-12-03 1956-12-03 Improvements in and relating to electric switches and circuit-breakers Expired GB882817A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3692556A GB882817A (en) 1956-12-03 1956-12-03 Improvements in and relating to electric switches and circuit-breakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3692556A GB882817A (en) 1956-12-03 1956-12-03 Improvements in and relating to electric switches and circuit-breakers

Publications (1)

Publication Number Publication Date
GB882817A true GB882817A (en) 1961-11-22

Family

ID=10392293

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3692556A Expired GB882817A (en) 1956-12-03 1956-12-03 Improvements in and relating to electric switches and circuit-breakers

Country Status (1)

Country Link
GB (1) GB882817A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1939908A1 (en) * 2006-12-29 2008-07-02 ABB Technology Ltd Method of operating a circuit breaker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1939908A1 (en) * 2006-12-29 2008-07-02 ABB Technology Ltd Method of operating a circuit breaker
WO2008080979A2 (en) * 2006-12-29 2008-07-10 Abb Technology Ltd High-voltage disconnecting circuit breaker and method of operating the same
WO2008080979A3 (en) * 2006-12-29 2008-12-04 Abb Technology Ltd High-voltage disconnecting circuit breaker and method of operating the same

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