GB1503822A - Circuit interrupter having an electro-magnetic repulsion device - Google Patents

Circuit interrupter having an electro-magnetic repulsion device

Info

Publication number
GB1503822A
GB1503822A GB2896575A GB2896575A GB1503822A GB 1503822 A GB1503822 A GB 1503822A GB 2896575 A GB2896575 A GB 2896575A GB 2896575 A GB2896575 A GB 2896575A GB 1503822 A GB1503822 A GB 1503822A
Authority
GB
United Kingdom
Prior art keywords
july
repulsion device
electro
rod
movable contact
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
GB2896575A
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.)
Merlin Gerin SA
Original Assignee
Merlin Gerin SA
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
Priority claimed from FR7424461A external-priority patent/FR2278147A2/en
Application filed by Merlin Gerin SA filed Critical Merlin Gerin SA
Publication of GB1503822A publication Critical patent/GB1503822A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H73/04—Contacts
    • H01H73/045—Bridging contacts
    • 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
    • H01H77/107—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 characterised by the blow-off force generating means, e.g. current loops
    • H01H77/108—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 characterised by the blow-off force generating means, e.g. current loops comprising magnetisable elements, e.g. flux concentrator, linear slot motor

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)

Abstract

1503822 Circuit interrupters MERLIN GERIN 9 July 1975 [12 July 1974] 28965/75 Addition to 1405377 Heading H1N An electromagnetic repulsion device having an elongated induction plate 32 coupled to a movable contact 18 and extending into a small width linearly extending air gap 30 of a magnetic circuit 24 as in parent Specification, has its movable contact 18 in the form of a cylindrical rod arranged to bridge contact faces 14, 16 which extend parallel to the rod axis. The magnetic circuit can provide two flux paths with common polepieces 26, 28 as in Fig. 2, or a single flux path as in Fig. 8. A return conductor for the induced currents can be provided (Figs. 5, and Figs. 4, 9 and 10, not shown) and the longitudinal axis of the induction plate 52 may be normal to that of the rod 18.
GB2896575A 1974-07-12 1975-07-09 Circuit interrupter having an electro-magnetic repulsion device Expired GB1503822A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7424461A FR2278147A2 (en) 1972-05-26 1974-07-12 DEVICE FOR QUICK MOVEMENT OF AN ELECTRICAL CONTACT

Publications (1)

Publication Number Publication Date
GB1503822A true GB1503822A (en) 1978-03-15

Family

ID=9141255

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2896575A Expired GB1503822A (en) 1974-07-12 1975-07-09 Circuit interrupter having an electro-magnetic repulsion device

Country Status (2)

Country Link
GB (1) GB1503822A (en)
IT (1) IT1050582B (en)

Also Published As

Publication number Publication date
IT1050582B (en) 1981-03-20

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Legal Events

Date Code Title Description
PS Patent sealed