FR2242766A1 - Electric circuit breaker - has double fixed and moving contacts in series and double arc repulsion - Google Patents

Electric circuit breaker - has double fixed and moving contacts in series and double arc repulsion

Info

Publication number
FR2242766A1
FR2242766A1 FR7331478A FR7331478A FR2242766A1 FR 2242766 A1 FR2242766 A1 FR 2242766A1 FR 7331478 A FR7331478 A FR 7331478A FR 7331478 A FR7331478 A FR 7331478A FR 2242766 A1 FR2242766 A1 FR 2242766A1
Authority
FR
France
Prior art keywords
circuit breaker
double
contacts
series
moving contacts
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
FR7331478A
Other languages
French (fr)
Other versions
FR2242766B1 (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 FR7331478A priority Critical patent/FR2242766A1/en
Publication of FR2242766A1 publication Critical patent/FR2242766A1/en
Application granted granted Critical
Publication of FR2242766B1 publication Critical patent/FR2242766B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • 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

Landscapes

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

Abstract

The electric circuit breaker has an insulating material chassis (10), a pair of fixed contacts (12, 14) and a pair of moving contacts (16). The moving contacts (16) are bridged so as to give two breaks in series. The contacts are separated by an insulating material sheet (26). Two arc extinction chambers (18, 20) made up of slotted metal sheets are positioned around the break space (24). The currents flowing through the pair of breaker contacts are in opposite directions, such that during separation electrodynamic forces are generated in opposition and provide extinction of the electric arcs. A compact circuit breaker is thus obtained.
FR7331478A 1973-08-30 1973-08-30 Electric circuit breaker - has double fixed and moving contacts in series and double arc repulsion Granted FR2242766A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7331478A FR2242766A1 (en) 1973-08-30 1973-08-30 Electric circuit breaker - has double fixed and moving contacts in series and double arc repulsion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7331478A FR2242766A1 (en) 1973-08-30 1973-08-30 Electric circuit breaker - has double fixed and moving contacts in series and double arc repulsion

Publications (2)

Publication Number Publication Date
FR2242766A1 true FR2242766A1 (en) 1975-03-28
FR2242766B1 FR2242766B1 (en) 1976-06-18

Family

ID=9124474

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7331478A Granted FR2242766A1 (en) 1973-08-30 1973-08-30 Electric circuit breaker - has double fixed and moving contacts in series and double arc repulsion

Country Status (1)

Country Link
FR (1) FR2242766A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0255016A1 (en) * 1986-07-31 1988-02-03 Siemens Aktiengesellschaft Current limiting switch element
EP0335824A1 (en) * 1988-03-28 1989-10-04 Siemens Aktiengesellschaft Current limiting switching device with electro-dynamically openable contact pieces
EP0482197A1 (en) * 1989-06-30 1992-04-29 Hitachi, Ltd. Circuit breaker
CN109473324A (en) * 2018-10-31 2019-03-15 厦门安达兴电气集团有限公司 Nonpolarity low-voltage circuit breaker
CN112582216A (en) * 2019-09-27 2021-03-30 吉加瓦有限责任公司 Contact suspension trigger mechanism for use with switching devices incorporating a squib-type feature

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0255016A1 (en) * 1986-07-31 1988-02-03 Siemens Aktiengesellschaft Current limiting switch element
US4810841A (en) * 1986-07-31 1989-03-07 Siemens Aktiengesellschaft Current-limiting switching element
EP0335824A1 (en) * 1988-03-28 1989-10-04 Siemens Aktiengesellschaft Current limiting switching device with electro-dynamically openable contact pieces
DE3810977A1 (en) * 1988-03-28 1989-10-12 Siemens Ag CURRENT-LIMITING SWITCHING DEVICE WITH ELECTRODYNAMICALLY OPENING SWITCHES
EP0482197A1 (en) * 1989-06-30 1992-04-29 Hitachi, Ltd. Circuit breaker
EP0482197A4 (en) * 1989-06-30 1992-11-25 Hitachi, Ltd. Circuit breaker
CN109473324A (en) * 2018-10-31 2019-03-15 厦门安达兴电气集团有限公司 Nonpolarity low-voltage circuit breaker
CN112582216A (en) * 2019-09-27 2021-03-30 吉加瓦有限责任公司 Contact suspension trigger mechanism for use with switching devices incorporating a squib-type feature
US12040145B2 (en) 2019-09-27 2024-07-16 Gigavac, Llc Contact levitation triggering mechanisms for use with switching devices incorporating pyrotechnic features

Also Published As

Publication number Publication date
FR2242766B1 (en) 1976-06-18

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Legal Events

Date Code Title Description
ST Notification of lapse