FR2351487A2 - Suppressor circuit for electric arc - uses magnetic circuit with air gap and component of thin plate form - Google Patents

Suppressor circuit for electric arc - uses magnetic circuit with air gap and component of thin plate form

Info

Publication number
FR2351487A2
FR2351487A2 FR7614361A FR7614361A FR2351487A2 FR 2351487 A2 FR2351487 A2 FR 2351487A2 FR 7614361 A FR7614361 A FR 7614361A FR 7614361 A FR7614361 A FR 7614361A FR 2351487 A2 FR2351487 A2 FR 2351487A2
Authority
FR
France
Prior art keywords
air gap
magnetic circuit
thin plate
circuit
component
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
FR7614361A
Other languages
French (fr)
Other versions
FR2351487B2 (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
Priority claimed from FR7219239A external-priority patent/FR2185853B1/fr
Application filed by Merlin Gerin SA filed Critical Merlin Gerin SA
Priority to FR7614361A priority Critical patent/FR2351487A2/en
Priority to US05/794,343 priority patent/US4118681A/en
Publication of FR2351487A2 publication Critical patent/FR2351487A2/en
Application granted granted Critical
Publication of FR2351487B2 publication Critical patent/FR2351487B2/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
    • H01H77/10—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate

Abstract

The appts. is for rapid displacement of the movable contact of a pair of contacts, and gives an ab upt variation of electric current comprising a magnetic circuit (10) which has a small air gap (20), and surrounding at least one current carrying conductor to generate a magnetic field in the air gap proportional to the current. A component part of the conductor has a part in the form of a thin plate inserted in a position of closure of the movable contact in the air gap, the magnetic circuit comprising two extensions in the form of flanges laterally surrounding the pair of contacts, magnetically to extinguish an arc between the contacts during the opening of the movable contact.
FR7614361A 1972-05-26 1976-05-12 Suppressor circuit for electric arc - uses magnetic circuit with air gap and component of thin plate form Granted FR2351487A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7614361A FR2351487A2 (en) 1972-05-26 1976-05-12 Suppressor circuit for electric arc - uses magnetic circuit with air gap and component of thin plate form
US05/794,343 US4118681A (en) 1976-05-12 1977-05-06 High-speed current-limiting device having a contact reclosing retarding member

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7219239A FR2185853B1 (en) 1972-05-26 1972-05-26
FR7614361A FR2351487A2 (en) 1972-05-26 1976-05-12 Suppressor circuit for electric arc - uses magnetic circuit with air gap and component of thin plate form

Publications (2)

Publication Number Publication Date
FR2351487A2 true FR2351487A2 (en) 1977-12-09
FR2351487B2 FR2351487B2 (en) 1979-10-05

Family

ID=26217116

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7614361A Granted FR2351487A2 (en) 1972-05-26 1976-05-12 Suppressor circuit for electric arc - uses magnetic circuit with air gap and component of thin plate form

Country Status (1)

Country Link
FR (1) FR2351487A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030872A2 (en) * 1979-12-17 1981-06-24 Gould Inc. Current-limiting circuit breaker adapter
CN109817478A (en) * 2017-11-22 2019-05-28 嘉灵科技有限公司 Monopole DC breaker with two-way arc chamber

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030872A2 (en) * 1979-12-17 1981-06-24 Gould Inc. Current-limiting circuit breaker adapter
EP0030872A3 (en) * 1979-12-17 1982-03-17 Gould Inc. Current-limiting circuit breaker adapter
CN109817478A (en) * 2017-11-22 2019-05-28 嘉灵科技有限公司 Monopole DC breaker with two-way arc chamber

Also Published As

Publication number Publication date
FR2351487B2 (en) 1979-10-05

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