JPS5673831A - Line protection switch - Google Patents

Line protection switch

Info

Publication number
JPS5673831A
JPS5673831A JP15573580A JP15573580A JPS5673831A JP S5673831 A JPS5673831 A JP S5673831A JP 15573580 A JP15573580 A JP 15573580A JP 15573580 A JP15573580 A JP 15573580A JP S5673831 A JPS5673831 A JP S5673831A
Authority
JP
Japan
Prior art keywords
contact
contact position
guide bar
protection switch
line protection
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.)
Pending
Application number
JP15573580A
Other languages
Japanese (ja)
Inventor
Niimeiaa Ruutsu
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.)
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France 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 BBC Brown Boveri France SA filed Critical BBC Brown Boveri France SA
Publication of JPS5673831A publication Critical patent/JPS5673831A/en
Pending 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
    • H01H71/122—Automatic release mechanisms with or without manual release actuated by blowing of a fuse
    • 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
    • H01H71/14—Electrothermal mechanisms
    • H01H71/145—Electrothermal mechanisms using shape memory materials

Landscapes

  • Breakers (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

1. A single- or multi-pole low-tension line circuit breaker with a contact position (22, 24) comprising a movable contact (22) and a fixed contact (24) for each pole, having an arc extinction chamber associated with the contact position (22, 24), on which position by means of a switch mechanism (12) an overcurrent trip acts in the event of an overload current or short circuit current, the fixed contact (24) being mounted on a guide bar which forms both an arc guide bar (26, 50) and a terminal, characterised in that the contact position (22, 24) is associated with a component (42, 58a, 63, 64) which is made from a memory alloy and which is deformed when and after its transition temperature is exceeded and so forces the contacts irreversibly apart.
JP15573580A 1979-11-05 1980-11-05 Line protection switch Pending JPS5673831A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2944579A DE2944579C2 (en) 1979-11-05 1979-11-05 Low-voltage circuit breaker

Publications (1)

Publication Number Publication Date
JPS5673831A true JPS5673831A (en) 1981-06-18

Family

ID=6085156

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15573580A Pending JPS5673831A (en) 1979-11-05 1980-11-05 Line protection switch

Country Status (4)

Country Link
EP (1) EP0028389B1 (en)
JP (1) JPS5673831A (en)
AT (1) ATE5448T1 (en)
DE (1) DE2944579C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104701107A (en) * 2015-03-17 2015-06-10 山东大学 Breaker for circuit fire
CN104701106A (en) * 2015-03-13 2015-06-10 山东大学 Intelligent element for circuit breaker and preparation method thereof

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4400677A (en) * 1981-12-09 1983-08-23 Texas Instruments Incorporated Fail safe circuit breaker
GB2209200A (en) * 1987-08-28 1989-05-04 Thorn Emi Flow Measurement Ltd Thermal cut-off valve
DE19508498C2 (en) * 1995-03-09 1997-07-10 Siemens Ag Remote triggering device
DE19727152A1 (en) * 1997-06-26 1999-01-07 Abb Patent Gmbh Residual current circuit breaker
DE19743037A1 (en) * 1997-09-30 1999-04-01 Siemens Ag Protective circuit-breaker esp. automatic cut-out

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2138438C3 (en) * 1971-07-31 1975-09-04 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Magnetic trip coil for miniature circuit breakers with U-shaped iron yoke
US3796980A (en) * 1972-07-31 1974-03-12 Westinghouse Electric Corp Disposable circuit breaker
DE2701884A1 (en) * 1976-01-19 1977-07-21 Delta Materials Research Ltd CURRENT OVERLOAD PROTECTION
DE2923562A1 (en) * 1979-06-11 1980-12-18 Bbc Brown Boveri & Cie Switch protection system with back-up cut=out - uses max. overloading which only causes destruction at given place and circuit remains disconnected

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104701106A (en) * 2015-03-13 2015-06-10 山东大学 Intelligent element for circuit breaker and preparation method thereof
CN104701107A (en) * 2015-03-17 2015-06-10 山东大学 Breaker for circuit fire

Also Published As

Publication number Publication date
DE2944579A1 (en) 1981-05-07
DE2944579C2 (en) 1986-02-20
EP0028389A1 (en) 1981-05-13
EP0028389B1 (en) 1983-11-23
ATE5448T1 (en) 1983-12-15

Similar Documents

Publication Publication Date Title
EP0042113A3 (en) Automatic circuit breaker
ZA847863B (en) Low voltage multipole circuit-breaker operating mechanism
ES8501920A1 (en) Circuit interrupter with improved electro-mechanical undervoltage release mechanism
DK0616347T3 (en) Multi-pole safety switch
JPS56153642A (en) Device for automatically tripping switch for breaking circuit
ATE309T1 (en) MULTI-POLE CURRENT-LIMITING CIRCUIT SWITCH.
US4132968A (en) Current limiting circuit breaker with improved magnetic drive device
GB1435544A (en) Disposable circuit breaker
GB635516A (en) Automatic electric circuit-breaker
JPS5673831A (en) Line protection switch
DE3662478D1 (en) Excess current protective circuit breaker
GB1592291A (en) Circuit breaker with latch mechanism
ES8206089A1 (en) Circuit interrupter trip unit.
GB869424A (en) Improvements in or relating to current interrupting devices
US4219790A (en) Current limiting circuit breaker
GB1053654A (en)
DE3674867D1 (en) MAGNETOTHERMAL TRIGGER RELATED TO THE MECHANISM OF A MINIATURE SWITCH WITH INSULATED HOUSING.
GB426486A (en) Improvements in or relating to thermally released electric overload circuit breakers
ATE181185T1 (en) RESIDUAL CURRENT PROTECTION BREAKER
GB1020009A (en) Electric circuit interrupters
FR2434474A1 (en) Circuit breaker with rotatable cam - varies proportion of breaker current which flows through trip circuit by using shunt conductors on calibrated length
SU997125A1 (en) Device for overload protection of voltage transformer
GB1528111A (en) High-current current-limiting circuit interrupter having electrodynamically operated arcing contacts
GB2004700A (en) Circuit breaker trip
EP0260120A3 (en) Control circuit with coordination provisions