GB1171299A - Automatic Circuit-Breaker - Google Patents

Automatic Circuit-Breaker

Info

Publication number
GB1171299A
GB1171299A GB2743169A GB2743169A GB1171299A GB 1171299 A GB1171299 A GB 1171299A GB 2743169 A GB2743169 A GB 2743169A GB 2743169 A GB2743169 A GB 2743169A GB 1171299 A GB1171299 A GB 1171299A
Authority
GB
United Kingdom
Prior art keywords
arm
lever
breaker
contact
contact carrier
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
GB2743169A
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.)
Allen Bradley Co LLC
Original Assignee
Allen Bradley Co LLC
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 Allen Bradley Co LLC filed Critical Allen Bradley Co LLC
Priority claimed from GB40884/66A external-priority patent/GB1171297A/en
Publication of GB1171299A publication Critical patent/GB1171299A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/62—Manual reset mechanisms which may be also used for manual release with means for preventing resetting while abnormal condition persists, e.g. loose handle arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
    • F24F3/048—Systems in which all treatment is given in the central station, i.e. all-air systems with temperature control at constant rate of air-flow
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/20—Electrothermal mechanisms with fusible mass
    • H01H71/205—Electrothermal mechanisms with fusible mass using a ratchet wheel kept against rotation by solder
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/501—Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/18—Means for extinguishing or suppressing arc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/22—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release
    • H01H73/30—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release reset by push-button, pull-knob or slide

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

1,171,299. Automatic circuit - breaker. ALLEN-BRADLEY CO. 13 Sept., 1966 [20 Sept., 1965], No. 27431/69. Divided out of 1,171,297. Heading H1N. In an automatic circuit-breaker in which a yieldingly restrained contact latch release lever arm 101, Fig. 4, is engaged by a current overload device such as a spring loaded plunger 23, Fig. 3 (not shown) of a solder pot and ratchet release device, the lever arm 101 is locked against manual reset if the contact carrier 3, Fig. 8, fails to return to the "off" position shown. The arm 101 is restrained to its operative position by a spring 104 and upon overload current actuation rotates arm 103 of a trip pin 98a to release a catch lever 96 normally holding toggle mechanism 66 of the contact actuating mechanism in its lower operative position. To prevent manual reset if the contacts are still closed (contact carrier 3 not returned) a trip lock lever 110 on the same pivot 102 as that of lever 101 drops to lock the arm 103 of latch pin 98a by engaging a projection 114, Fig. 9, under a part of the arm 103 and thereby preventing its restoration to the latched position under the action of its return spring 104. The lock lever 110 is disengaged only when the contact carrier 3 moves up to its open-circuit position (Fig. 8) and rotates the lever 110 by engagement with a depending finger 115 thereof. The actuator is then free to be manually reset by an extension arm 107 of the pivoted actuator 64 when the relevant pushbutton 87 is depressed. The toggle actuating mechanism 66 forms the subject of Divisional Specification 1,171,300.
GB2743169A 1965-09-20 1966-09-13 Automatic Circuit-Breaker Expired GB1171299A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48854865A 1965-09-20 1965-09-20
GB40884/66A GB1171297A (en) 1965-09-20 1966-09-13 Electric Switch

Publications (1)

Publication Number Publication Date
GB1171299A true GB1171299A (en) 1969-11-19

Family

ID=26264529

Family Applications (3)

Application Number Title Priority Date Filing Date
GB2743169A Expired GB1171299A (en) 1965-09-20 1966-09-13 Automatic Circuit-Breaker
GB2743069A Expired GB1171298A (en) 1965-09-20 1966-09-13 Electric Switch
GB2743269A Expired GB1171300A (en) 1965-09-20 1966-09-13 Electric Switch

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB2743069A Expired GB1171298A (en) 1965-09-20 1966-09-13 Electric Switch
GB2743269A Expired GB1171300A (en) 1965-09-20 1966-09-13 Electric Switch

Country Status (1)

Country Link
GB (3) GB1171299A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2288282A (en) * 1994-04-08 1995-10-11 Gen Electric Circuit interrupter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2288282A (en) * 1994-04-08 1995-10-11 Gen Electric Circuit interrupter
GB2288282B (en) * 1994-04-08 1998-06-24 Gen Electric Circuit interrupter

Also Published As

Publication number Publication date
GB1171298A (en) 1969-11-19
GB1171300A (en) 1969-11-19

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