FR2423053A2 - Magnetic repulsion based switch - has ferromagnetic plate close to magnetic circuit air gap on opposite side of armature - Google Patents

Magnetic repulsion based switch - has ferromagnetic plate close to magnetic circuit air gap on opposite side of armature

Info

Publication number
FR2423053A2
FR2423053A2 FR7811635A FR7811635A FR2423053A2 FR 2423053 A2 FR2423053 A2 FR 2423053A2 FR 7811635 A FR7811635 A FR 7811635A FR 7811635 A FR7811635 A FR 7811635A FR 2423053 A2 FR2423053 A2 FR 2423053A2
Authority
FR
France
Prior art keywords
armature
opposite side
ferromagnetic plate
air gap
magnetic
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.)
Granted
Application number
FR7811635A
Other languages
French (fr)
Other versions
FR2423053B2 (en
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
Application filed by Merlin Gerin SA filed Critical Merlin Gerin SA
Priority to FR7811635A priority Critical patent/FR2423053A2/en
Publication of FR2423053A2 publication Critical patent/FR2423053A2/en
Application granted granted Critical
Publication of FR2423053B2 publication Critical patent/FR2423053B2/fr
Granted 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
    • H01H77/06—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 electromagnetic opening
    • 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)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)

Abstract

In the electrical switch, the armature electrode is displaced rapidly by the fast change in current through the switch. The switch is based on a magnetic circuit surrounding the current carrying conductor held within a small-air-gap in the circuit. A conductor strip (22) integral with the armature conductor (18) is subject to induced currents due to the break action, the field generated enhancing the separation rate of the electrodes. A ferromagnetic plate (26) is fixed to the conductor strip and positioned close to the air-gap on the opposite side to the armature.
FR7811635A 1978-04-11 1978-04-11 Magnetic repulsion based switch - has ferromagnetic plate close to magnetic circuit air gap on opposite side of armature Granted FR2423053A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7811635A FR2423053A2 (en) 1978-04-11 1978-04-11 Magnetic repulsion based switch - has ferromagnetic plate close to magnetic circuit air gap on opposite side of armature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7811635A FR2423053A2 (en) 1978-04-11 1978-04-11 Magnetic repulsion based switch - has ferromagnetic plate close to magnetic circuit air gap on opposite side of armature

Publications (2)

Publication Number Publication Date
FR2423053A2 true FR2423053A2 (en) 1979-11-09
FR2423053B2 FR2423053B2 (en) 1980-09-26

Family

ID=9207364

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7811635A Granted FR2423053A2 (en) 1978-04-11 1978-04-11 Magnetic repulsion based switch - has ferromagnetic plate close to magnetic circuit air gap on opposite side of armature

Country Status (1)

Country Link
FR (1) FR2423053A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325812A1 (en) * 1987-12-21 1989-08-02 North American Philips Corporation Capacitor having current surge protection

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR721451A (en) * 1930-06-27 1932-03-03 Merlin Gerin Improvements to circuit breakers and particularly to fast acting circuit breakers for direct current
FR740568A (en) * 1932-07-28 1933-01-27 Telemecanique Electrique Electromagnetic contactor with accelerated cut-off
FR758319A (en) * 1932-10-12 1934-01-16 Cem Comp Electro Mec Improvements to devices used to cut electrical circuits
FR2237302A2 (en) * 1972-05-26 1975-02-07 Merlin Gerin

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR721451A (en) * 1930-06-27 1932-03-03 Merlin Gerin Improvements to circuit breakers and particularly to fast acting circuit breakers for direct current
FR740568A (en) * 1932-07-28 1933-01-27 Telemecanique Electrique Electromagnetic contactor with accelerated cut-off
FR758319A (en) * 1932-10-12 1934-01-16 Cem Comp Electro Mec Improvements to devices used to cut electrical circuits
FR2237302A2 (en) * 1972-05-26 1975-02-07 Merlin Gerin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325812A1 (en) * 1987-12-21 1989-08-02 North American Philips Corporation Capacitor having current surge protection

Also Published As

Publication number Publication date
FR2423053B2 (en) 1980-09-26

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