GB405000A - Improvements in and relating to electric circuit breakers - Google Patents

Improvements in and relating to electric circuit breakers

Info

Publication number
GB405000A
GB405000A GB18140/32A GB1814032A GB405000A GB 405000 A GB405000 A GB 405000A GB 18140/32 A GB18140/32 A GB 18140/32A GB 1814032 A GB1814032 A GB 1814032A GB 405000 A GB405000 A GB 405000A
Authority
GB
United Kingdom
Prior art keywords
magnet
armature
coil
june
class
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
GB18140/32A
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 GB405000A publication Critical patent/GB405000A/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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2436—Electromagnetic mechanisms with a holding and a releasing magnet, the holding force being limited due to saturation of the holding magnet
    • 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
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2454—Electromagnetic mechanisms characterised by the magnetic circuit or active magnetic elements
    • 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
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2472—Electromagnetic mechanisms with rotatable armatures

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Magnetic Treatment Devices (AREA)
  • Keying Circuit Devices (AREA)
  • Relay Circuits (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

405,000. Electromagnetic switches. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitõts-Ges.; 2 Friedrich Karl-Ufer, Berlin.) June 27, 1932,' No. 18140. Convention date, June 25, 1931. [Class 38 (v).] A switch comprises an armature located between a holding electromagnet and a releasing electromagnet energized by overload to cause the armature to strike a contact making member and to accelerate it in the opening direction within the leakage field of the releasing electromagnet. As shown, the armature 2 is normally held by the saturated magnet 3 carrying voltage and current coils 8, 10 respectively but when it is attracted by an increased current in coil 6 on the unsaturated magnet 5 it moves alone for a distance before striking the contact lever 7 which it moves away from fixed contact 12 against spring pressure. The contacts open in the leakage field of the coil 6 and magnet 5. In a modification, the magnet 3 is not polarised but carries only a series coil. The re-closing of the contacts may be effected by the spring or other means. Specification 219,723, [Class 38 (v), Electric switches &c.], is referred to. The Specification as open to inspection under Sect. 91 comprises also an arrangement wherein the armature and switch lever are rigidly connected. This subject-matter does not appear in the Specification as accepted.
GB18140/32A 1931-06-26 1932-06-27 Improvements in and relating to electric circuit breakers Expired GB405000A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEA62478D DE601544C (en) 1931-06-26 1931-06-26 Overcurrent switch for large capacities, especially high-speed switches
DE448255X 1933-12-01

Publications (1)

Publication Number Publication Date
GB405000A true GB405000A (en) 1934-01-29

Family

ID=25943637

Family Applications (2)

Application Number Title Priority Date Filing Date
GB18140/32A Expired GB405000A (en) 1931-06-26 1932-06-27 Improvements in and relating to electric circuit breakers
GB34712/34A Expired GB448255A (en) 1931-06-26 1934-12-03 Improvements in or relating to electric circuit breakers

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB34712/34A Expired GB448255A (en) 1931-06-26 1934-12-03 Improvements in or relating to electric circuit breakers

Country Status (3)

Country Link
BE (1) BE406573A (en)
DE (1) DE601544C (en)
GB (2) GB405000A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE942455C (en) * 1941-07-12 1956-05-03 Aeg Electrical overcurrent switch for alternating current
DE969319C (en) * 1949-10-11 1958-05-22 Licentia Gmbh Quick switch, especially for mercury vapor converters or contact converters
DE964159C (en) * 1952-06-21 1957-05-16 Licentia Gmbh Installation circuit breaker working with trip-free release with thermal and magnetic release
DE1037562B (en) * 1955-09-20 1958-08-28 Licentia Gmbh DC high-speed switch for higher currents with a short operating time

Also Published As

Publication number Publication date
DE601544C (en) 1934-08-17
GB448255A (en) 1936-06-03
BE406573A (en)

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