CH613809A5 - Current limiter/circuit breaker - Google Patents

Current limiter/circuit breaker

Info

Publication number
CH613809A5
CH613809A5 CH548775A CH548775A CH613809A5 CH 613809 A5 CH613809 A5 CH 613809A5 CH 548775 A CH548775 A CH 548775A CH 548775 A CH548775 A CH 548775A CH 613809 A5 CH613809 A5 CH 613809A5
Authority
CH
Switzerland
Prior art keywords
contacts
pair
current
circuit breaker
current limiter
Prior art date
Application number
CH548775A
Inventor
Joseph Mohamed Khalid
Clark Lewis Oster
James Aubrey Tharp
Richard Tyler Dickens
Original Assignee
Square D Co
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 US05/465,011 external-priority patent/US3946346A/en
Priority claimed from US05/465,012 external-priority patent/US3943473A/en
Priority claimed from US05/465,010 external-priority patent/US3943472A/en
Priority claimed from US05/465,399 external-priority patent/US3944953A/en
Priority claimed from US05/465,397 external-priority patent/US3956723A/en
Priority claimed from US05/465,398 external-priority patent/US3943316A/en
Application filed by Square D Co filed Critical Square D Co
Publication of CH613809A5 publication Critical patent/CH613809A5/en

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
    • 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
    • H01H9/42—Impedances connected with contacts
    • 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
    • H01H9/446—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using magnetisable elements associated with the contacts

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

The current limiter/circuit breaker is provided with means for cutting the current in the event of a surge. In addition to a first pair of contacts (53, 70) actuated thermally or magnetically, a second pair of contacts (153, 155) is provided on current-conducting blades (152, 154). Electromagnetic means of actuation (148a, 156, 182) with movable armature, bring about separation of the contacts of this second pair in response to a current surge in the said blades (152, 154) which exceeds the value of the surges required to actuate the contacts of the first pair. To provide for this performance, an auxiliary electromagnetic arc-diversion arrangement (188d, 181) is provided in order, at the requisite moment, to supply a magnetic field directed perpendicularly to the electric arc forming during separation of the contacts of the second pair. <IMAGE>
CH548775A 1974-04-29 1975-04-29 Current limiter/circuit breaker CH613809A5 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US05/465,011 US3946346A (en) 1974-04-29 1974-04-29 Current limiting circuit breaker
US05/465,012 US3943473A (en) 1974-04-29 1974-04-29 Current limiting circuit breaker
US05/465,010 US3943472A (en) 1974-04-29 1974-04-29 Current limiting circuit breaker
US05/465,399 US3944953A (en) 1974-04-29 1974-04-29 Current limiting circuit breaker
US05/465,397 US3956723A (en) 1974-04-29 1974-04-29 Current limiting circuit breaker
US05/465,398 US3943316A (en) 1974-04-29 1974-04-29 Current limiting circuit breaker

Publications (1)

Publication Number Publication Date
CH613809A5 true CH613809A5 (en) 1979-10-15

Family

ID=27560024

Family Applications (1)

Application Number Title Priority Date Filing Date
CH548775A CH613809A5 (en) 1974-04-29 1975-04-29 Current limiter/circuit breaker

Country Status (8)

Country Link
JP (1) JPS6237499B2 (en)
CA (1) CA1043840A (en)
CH (1) CH613809A5 (en)
DE (1) DE2519092C2 (en)
FR (1) FR2280188B1 (en)
GB (1) GB1511881A (en)
IE (1) IE42983B1 (en)
IT (1) IT1032765B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2802553B1 (en) * 1978-01-19 1979-01-18 Siemens Ag Low-voltage circuit breaker with split insulating material housing
US4255732A (en) * 1978-10-16 1981-03-10 Westinghouse Electric Corp. Current limiting circuit breaker
NL176724C (en) * 1979-06-11 1985-05-17 Hazemeijer Bv PROTECTION DEVICE FOR SELECTIVELY SWITCHING OFF NETWORK SECTIONS OF AN ELECTRIC ENERGY DISTRIBUTION NETWORK AND AN ENERGY DISTRIBUTION NETWORK PROVIDED WITH MULTIPLE SELECTIVE PROTECTION DEVICES.
DE3016435A1 (en) * 1980-04-29 1981-11-19 Christian Geyer GmbH & Co, 8500 Nürnberg Electric power protection switch - has electrodynamic switch connected in parallel with trip mechanism fitted with two electromagnets
GB9002678D0 (en) * 1990-02-07 1990-04-04 Mk Electric Ltd Improvements in or relating to electric switches
JPH0531491U (en) * 1991-09-27 1993-04-23 アイワ株式会社 Inner earphones
DE102017129657A1 (en) * 2017-07-10 2019-01-10 Dehn + Söhne Gmbh + Co. Kg Arrangement for the non-reversible detection and display of electrical overcurrents or current limits by means of a pre-assembled conductor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR657067A (en) * 1928-05-10 1929-05-16 Improvements to electric arc blowing devices in circuit breakers and switches
CH136162A (en) * 1928-11-07 1929-10-31 Naether Ernst Maximum current switch.
US3068379A (en) * 1957-04-11 1962-12-11 Fed Pacific Electric Co Circuit protective apparatus
US3136921A (en) * 1957-12-10 1964-06-09 Westinghouse Electric Corp Circuit breakers
US3813619A (en) * 1962-05-18 1974-05-28 Gen Electric Current-limiting circuit breaker

Also Published As

Publication number Publication date
FR2280188B1 (en) 1986-05-02
JPS6237499B2 (en) 1987-08-12
JPS50149980A (en) 1975-12-01
GB1511881A (en) 1978-05-24
DE2519092C2 (en) 1982-02-04
IE42983B1 (en) 1980-12-03
CA1043840A (en) 1978-12-05
AU8046275A (en) 1976-10-28
FR2280188A1 (en) 1976-02-20
DE2519092A1 (en) 1975-10-30
IT1032765B (en) 1979-06-20
IE42983L (en) 1975-10-29

Similar Documents

Publication Publication Date Title
GB1405377A (en) Electromagnetic repulsion device actuating the movable contact member of a circuit interrupter
GB567616A (en) Improvements in and relating to electric circuit interrupters and magnetic blow-outstherefor
GB1454354A (en) Circuit breaker with flux transfer magnetic actuator
ES430451A1 (en) Automatic protective circuit breaker
GB1488201A (en) Circuit interrupter with load side short circuit switchin
GB644035A (en) Improvements in or relating to magnetic switching devices of the cartridge or plug-type
CH613809A5 (en) Current limiter/circuit breaker
GB1237466A (en) Improvements in triggered vacuum type circuit controllers
ES8103882A1 (en) Earth fault circuit breaker responding also to direct fault currents.
GB1530576A (en) Circuit-breaker including an interchangeable tripping device
GB1424912A (en) Electrical power distribuition system having a current-limiting selective protective arrangement
GB1090456A (en) Miniature electric circuit-breakers
ES441080A1 (en) Circuit breaker with improved trip means
GB1137325A (en) Improvements in electrical circuit breakers
GB1496732A (en) Short-circuit current limiter
GB911934A (en) Electric circuit breaker
FR2283541A1 (en) Circuit breaker with thermal release and magnetic relay - has coil spring to provide contact bias and quick separation
GB974156A (en) Electric disconnecting switch
GB590970A (en) Improvements in or relating to electric air-break circuit-breakers
GB979464A (en) Improvements relating to electro-mechanical switching device
GB1034716A (en) Improvements in and relating to high voltage electric circuit-breakers
GB1127658A (en) Switching devices for superconducting power cables
FR2293095A1 (en) Protection unit for high tension transformers - guards against effect of short circuit surge in secondary
ES483546A1 (en) Electromagnetic Cut-out Device Used as a Relay or for Short Circuit Protection
GB930101A (en) Improvements in or relating to air-break circuit-breakers

Legal Events

Date Code Title Description
PL Patent ceased