GB930195A - Improvements in operating mechanism for an electrical circuit breaker - Google Patents

Improvements in operating mechanism for an electrical circuit breaker

Info

Publication number
GB930195A
GB930195A GB5245/62A GB524562A GB930195A GB 930195 A GB930195 A GB 930195A GB 5245/62 A GB5245/62 A GB 5245/62A GB 524562 A GB524562 A GB 524562A GB 930195 A GB930195 A GB 930195A
Authority
GB
United Kingdom
Prior art keywords
cam
roller
motor
dash
pot
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
GB5245/62A
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.)
General Electric Co
Original Assignee
General Electric 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 General Electric Co filed Critical General Electric Co
Publication of GB930195A publication Critical patent/GB930195A/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
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/36—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/1828—Cam, lever, and slide

Landscapes

  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Transmission Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)

Abstract

930,195. Automatic circuit-breakers. GENERAL ELECTRIC CO. Feb. 12, 1962 [Feb. 14, 1961], No. 5245/62. Class 38 (5). A motor-driven cam-operated circuit-breaker has a second cam coupled to the main contact driving cam and a dash-pot coacting with the second cam for dissipating the kinetic energy of the motor drive after de-energization so as to stop the main cam. As shown, the contacts 12, 16 are closed by one complete revolution of the cam 40 which moves the toggle linkage 23, 24 over centre into engagement with a stop 44. Two further cams 107, 62 are mounted on the shaft 54 of the cam 40 and the shaft 54 is driven by a motor 50. The cam 107 controls contacts 56 which take over from initiating contacts 85 and de-energize the motor after the cam point 88 disengages the roller 42 of the toggle joint 25. Further movement due to kinetic energy is opposed by the dash-pot 60 as a roller 70 is driven downward by the cam 62. The dash-pot has a piston 64 with a metering opening 65 and non-return valve 66, 67 and stop 69 formed in the dash-pot cylinder 63 prevent the return force of spring 68 moving the piston upward to rotate the cams in the reverse direction. On initial energization of the motor 50 the piston will be driven downward until the cam point 80 passes the roller 70 but during this movement there is no to the linkage 23, 24, 20 and contacts since the roller 42 engages a part 90 of the cam 40 having a uniform radius. A trip-free mechanism comprises a latch 32 normally retaining a roller 31 on a pivot-pin 28 for the toggle link 24. The latch 32 is controlled by a solenoid 34 fed by a current transformer 35. The lever 29 on which the pin 28 is mounted has a return spring 49.
GB5245/62A 1961-02-14 1962-02-12 Improvements in operating mechanism for an electrical circuit breaker Expired GB930195A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US89233A US3113191A (en) 1961-02-14 1961-02-14 Operating mechanism for an electric circuit breaker

Publications (1)

Publication Number Publication Date
GB930195A true GB930195A (en) 1963-07-03

Family

ID=22216468

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5245/62A Expired GB930195A (en) 1961-02-14 1962-02-12 Improvements in operating mechanism for an electrical circuit breaker

Country Status (3)

Country Link
US (1) US3113191A (en)
DE (2) DE6604201U (en)
GB (1) GB930195A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3174022A (en) * 1962-07-19 1965-03-16 Allis Chalmers Mfg Co Circuit breaker having stored energy operating mechanism employing a pair of overcenter toggles
US3209101A (en) * 1963-01-08 1965-09-28 Allis Chalmers Mfg Co Motor and spring operated vacuum switch
US3334202A (en) * 1966-02-11 1967-08-01 Gen Electric Manually-controlled circuit breaker tripping arrangement
US3402373A (en) * 1966-11-18 1968-09-17 Gen Electric Control means momentarily operated in response to circuit-breaker opening
US3576961A (en) * 1968-08-02 1971-05-04 Turner Electric Corp Vacuum switch with operating means for arresting contact in an intermediate position before complete opening
US3624329A (en) * 1968-11-18 1971-11-30 Westinghouse Electric Corp Operating mechanism for a circuit interrupter with toggle means continuously in underset condition
CH570692A5 (en) * 1974-08-28 1975-12-15 Sprecher & Schuh Ag
US4180788A (en) * 1978-07-03 1979-12-25 General Electric Company Vacuum circuit breaker with delayed trip operation
DE4446664C1 (en) * 1994-12-16 1996-03-07 Siemens Ag Spring drive for electric load switch

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE357294C (en) * 1922-08-21 R H Neumann Fa Device for automatic intermittent reversal of an electric motor
US1376436A (en) * 1917-07-12 1921-05-03 Westinghouse Electric & Mfg Co Control apparatus
CH120622A (en) * 1926-06-14 1927-06-01 Oerlikon Maschf Drive device for operating electrical switches.
US2053961A (en) * 1933-10-19 1936-09-08 Gen Electric Circuit breaker mechanism
US2307567A (en) * 1940-07-09 1943-01-05 Gen Electric Switch closing mechanism
US2361739A (en) * 1940-11-18 1944-10-31 Bobst Henri Pneumatic brake or stop control for decelerating rotating elements
US2680164A (en) * 1952-03-19 1954-06-01 Gen Electric Contact speed control in springdriven step type switches
DE1059080B (en) * 1953-02-09 1959-06-11 Iaelinia Ag Fuer Elek Sche Ind Switching device
US2895570A (en) * 1955-06-22 1959-07-21 Bobst And Son S A J Pneumatic brake with pressure closed valve
US2920607A (en) * 1956-12-17 1960-01-12 Gen Electric Hydraulically-actuated operating mechanism for an electric circuit breaker

Also Published As

Publication number Publication date
US3113191A (en) 1963-12-03
DE6604201U (en) 1969-12-18
DE1280967B (en) 1968-10-24

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