CA2040863A1 - Instantaneous trip device of a circuit breaker - Google Patents

Instantaneous trip device of a circuit breaker

Info

Publication number
CA2040863A1
CA2040863A1 CA2040863A CA2040863A CA2040863A1 CA 2040863 A1 CA2040863 A1 CA 2040863A1 CA 2040863 A CA2040863 A CA 2040863A CA 2040863 A CA2040863 A CA 2040863A CA 2040863 A1 CA2040863 A1 CA 2040863A1
Authority
CA
Canada
Prior art keywords
circuit breaker
overpressure
trip device
instantaneous trip
actuator
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
CA2040863A
Other languages
French (fr)
Other versions
CA2040863C (en
Inventor
Robert Morel
Marc Rival
Hubert Garcia
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
Publication of CA2040863A1 publication Critical patent/CA2040863A1/en
Application granted granted Critical
Publication of CA2040863C publication Critical patent/CA2040863C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • 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
    • H01H9/50—Means for detecting the presence of an arc or discharge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2418—Electromagnetic mechanisms combined with an electrodynamic current limiting mechanism
    • H01H2071/2427—Electromagnetic mechanisms combined with an electrodynamic current limiting mechanism with blow-off movement tripping mechanism, e.g. electrodynamic effect on contacts trips the traditional trip device before it can unlatch the spring mechanism by itself
    • 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
    • H01H2077/025—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 pneumatic means, e.g. by arc pressure
    • 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
    • H01H9/342—Venting arrangements for arc chutes

Abstract

A limiting circuit breaker with a molded case comprises an overpressure actuator which, when an overpressure occurs in the arc extinguishing chamber due to the action of an arc drawn by the electrodynamic repulsion of the contacts, brings about actuation by a piston, subjected to this overpressure, of the circuit breaker trip bar. The overpressure actuator forms an almost leaktight assembly.
CA002040863A 1990-05-04 1991-04-19 Instantaneous trip device of a circuit breaker Expired - Fee Related CA2040863C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9005870 1990-05-04
FR9005870A FR2661776B1 (en) 1990-05-04 1990-05-04 INSTANT TRIGGER OF A CIRCUIT BREAKER.

Publications (2)

Publication Number Publication Date
CA2040863A1 true CA2040863A1 (en) 1991-11-05
CA2040863C CA2040863C (en) 2000-06-13

Family

ID=9396495

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002040863A Expired - Fee Related CA2040863C (en) 1990-05-04 1991-04-19 Instantaneous trip device of a circuit breaker

Country Status (13)

Country Link
US (1) US5103198A (en)
EP (1) EP0455564B1 (en)
JP (1) JP3004387B2 (en)
CN (1) CN1047256C (en)
BR (1) BR9101760A (en)
CA (1) CA2040863C (en)
DE (1) DE69110540T2 (en)
ES (1) ES2075948T3 (en)
FR (1) FR2661776B1 (en)
HK (1) HK1006890A1 (en)
PT (1) PT97556B (en)
TW (1) TW208756B (en)
ZA (1) ZA913343B (en)

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Also Published As

Publication number Publication date
EP0455564A1 (en) 1991-11-06
DE69110540D1 (en) 1995-07-27
BR9101760A (en) 1991-12-17
CN1047256C (en) 1999-12-08
US5103198A (en) 1992-04-07
FR2661776A1 (en) 1991-11-08
HK1006890A1 (en) 1999-03-19
ES2075948T3 (en) 1995-10-16
JP3004387B2 (en) 2000-01-31
DE69110540T2 (en) 1996-02-29
TW208756B (en) 1993-07-01
PT97556A (en) 1993-05-31
FR2661776B1 (en) 1996-05-10
PT97556B (en) 1999-04-30
JPH04229524A (en) 1992-08-19
CA2040863C (en) 2000-06-13
CN1056374A (en) 1991-11-20
ZA913343B (en) 1992-02-26
EP0455564B1 (en) 1995-06-21

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