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GB2007913A - Operating mechanisms for circuit breakers - Google Patents

Operating mechanisms for circuit breakers

Info

Publication number
GB2007913A
GB2007913A GB7839189A GB7839189A GB2007913A GB 2007913 A GB2007913 A GB 2007913A GB 7839189 A GB7839189 A GB 7839189A GB 7839189 A GB7839189 A GB 7839189A GB 2007913 A GB2007913 A GB 2007913A
Authority
GB
United Kingdom
Prior art keywords
circuit breaker
locking device
closure mechanism
latch
lever
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.)
Withdrawn
Application number
GB7839189A
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Publication of GB2007913A publication Critical patent/GB2007913A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H75/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of power reset mechanism
    • H01H75/02—Details
    • H01H75/04—Reset mechanisms for automatically reclosing a limited number of times
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H2003/3057—Power arrangements internal to the switch for operating the driving mechanism using spring motor provisions for avoiding idling, e.g. preventing release of stored energy when a breaker is closed, or when the springs are not fully charged
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H2003/3094—Power arrangements internal to the switch for operating the driving mechanism using spring motor allowing an opening - closing - opening [OCO] sequence

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Breakers (AREA)
  • Mechanisms For Operating Contacts (AREA)

Abstract

An operating mechanism for an auto-reclosing power circuit breaker is disclosed, having a contact closure mechanism, comprising a spring 8, adapted to effects rapid reclosing sequence. The closure means is arranged to be inhibited by a latch (14), which can be locked by a locking device (36) when the circuit breaker is in the closed state. Locking device (36) comprises a lever (31) having a locking projection (31B) engagable in a recess (14C) in the latch (14). Such engagement is produced by a connecting member which connects an arm (31C) of lever (31) to a part (18) of the closure mechanism, which part adopts a different position depending upon the switching state of the circuit breaker. Locking device (36) thereby prevents damage to any part of the circuit breaker if the closure mechanism is accidentally, due to faulty or erroneous closing signals being imparted to it, activated, while the circuit breaker is in a closed state. <IMAGE>
GB7839189A 1977-10-03 1978-10-03 Operating mechanisms for circuit breakers Withdrawn GB2007913A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11887177A JPS5453271A (en) 1977-10-03 1977-10-03 Control device for high speed reeclosing circuit breaker

Publications (1)

Publication Number Publication Date
GB2007913A true GB2007913A (en) 1979-05-23

Family

ID=14747172

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7839189A Withdrawn GB2007913A (en) 1977-10-03 1978-10-03 Operating mechanisms for circuit breakers

Country Status (4)

Country Link
JP (1) JPS5453271A (en)
DE (1) DE2841821A1 (en)
GB (1) GB2007913A (en)
IT (1) IT1099684B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404446A (en) * 1981-11-23 1983-09-13 Westinghouse Electric Corp. Stored energy circuit breaker with a cam latch
DE3214935C2 (en) * 1982-04-19 1985-04-04 Siemens AG, 1000 Berlin und 8000 München Drive device for electric switches
FR2640424A1 (en) * 1988-12-09 1990-06-15 Alsthom Gec CIRCUIT BREAKER CONTROL
US7518076B1 (en) * 2008-04-01 2009-04-14 Eaton Corporation Electrical switching apparatus, and charging assembly and interlock assembly therefor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5351202Y2 (en) * 1973-07-05 1978-12-07

Also Published As

Publication number Publication date
IT1099684B (en) 1985-09-28
JPS5453271A (en) 1979-04-26
DE2841821A1 (en) 1979-04-05
IT7828246A0 (en) 1978-09-29

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)