EP0174199A3 - Current limiting switch - Google Patents

Current limiting switch Download PDF

Info

Publication number
EP0174199A3
EP0174199A3 EP85306319A EP85306319A EP0174199A3 EP 0174199 A3 EP0174199 A3 EP 0174199A3 EP 85306319 A EP85306319 A EP 85306319A EP 85306319 A EP85306319 A EP 85306319A EP 0174199 A3 EP0174199 A3 EP 0174199A3
Authority
EP
European Patent Office
Prior art keywords
current limiting
magnetic field
contact
contacts
limiting switch
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Withdrawn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
EP85306319A
Other languages
German (de)
French (fr)
Other versions
EP0174199A2 (en
Inventor
Michael Peter Reece
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 PLC
Original Assignee
General Electric Co PLC
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 PLC filed Critical General Electric Co PLC
Publication of EP0174199A2 publication Critical patent/EP0174199A2/en
Publication of EP0174199A3 publication Critical patent/EP0174199A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
    • H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
    • H01H77/10—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Push-Button Switches (AREA)
  • Contacts (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

An automatic current limiting device has contacts car­ ried by leaf springs extending from opposite ends of a housing in a magnetic field, and normally biassed into engagement by the resilience of the springs. Each contact is movable away from the other into an open position against the spring bias on the occurrence of a fault current, but is restrained from movement, at least to any significant extent, in the opposite direction, and means are provided for delaying the return of each contact from the open to the engaged position. Any arc that is formed will be propelled rapidly away from the contacts by the magnetic field, conveniently to an arc chute.
EP85306319A 1984-09-05 1985-09-05 Current limiting switch Withdrawn EP0174199A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB848422459A GB8422459D0 (en) 1984-09-05 1984-09-05 Current limiting switch
GB8422459 1984-09-05

Publications (2)

Publication Number Publication Date
EP0174199A2 EP0174199A2 (en) 1986-03-12
EP0174199A3 true EP0174199A3 (en) 1987-06-03

Family

ID=10566312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85306319A Withdrawn EP0174199A3 (en) 1984-09-05 1985-09-05 Current limiting switch

Country Status (2)

Country Link
EP (1) EP0174199A3 (en)
GB (2) GB8422459D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2739220B1 (en) * 1995-09-22 1997-12-12 Dudon Pascal DEVICE FOR CONTROLLING ELECTRICAL LINE BREAKING MEANS

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1413241A (en) * 1963-09-27 1965-10-08 Bbc Brown Boveri & Cie Socket Combiner

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1413241A (en) * 1963-09-27 1965-10-08 Bbc Brown Boveri & Cie Socket Combiner

Also Published As

Publication number Publication date
EP0174199A2 (en) 1986-03-12
GB8422459D0 (en) 1984-10-10
GB8522094D0 (en) 1985-10-09
GB2164495A (en) 1986-03-19
GB2164495B (en) 1988-01-06

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Effective date: 19871204

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Inventor name: REECE, MICHAEL PETER