SE8800398D0 - switchgear - Google Patents

switchgear

Info

Publication number
SE8800398D0
SE8800398D0 SE8800398A SE8800398A SE8800398D0 SE 8800398 D0 SE8800398 D0 SE 8800398D0 SE 8800398 A SE8800398 A SE 8800398A SE 8800398 A SE8800398 A SE 8800398A SE 8800398 D0 SE8800398 D0 SE 8800398D0
Authority
SE
Sweden
Prior art keywords
contact
movable
movable contact
aid
switching device
Prior art date
Application number
SE8800398A
Other languages
Swedish (sv)
Other versions
SE460812B (en
SE8800398L (en
Inventor
P-O Karlstrom
T Hansson
Original Assignee
Asea Brown Boveri
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 Asea Brown Boveri filed Critical Asea Brown Boveri
Priority to SE8800398A priority Critical patent/SE460812B/en
Publication of SE8800398D0 publication Critical patent/SE8800398D0/en
Priority to PCT/SE1989/000047 priority patent/WO1989007327A1/en
Publication of SE8800398L publication Critical patent/SE8800398L/en
Publication of SE460812B publication Critical patent/SE460812B/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
    • H01H77/101—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 with increasing of contact pressure by electrodynamic forces before opening
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
    • H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device
    • H01H89/08—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device with both devices using the same contact pair

Abstract

The electric switching device according to the invention has at least one fixed and one movable contact (9 and 11, respectively), of which the movable contact (11) is influenced by a contact pressure spring (23) and is displaceable with the aid of a contact carrier (14) which is movable in relation to the movable contact. The electric switching device is provided with a magnetic circuit, magnetized by the current through the contacts, for increasing the contact pressure at high currents. The magnetic circuit comprises a core (25) which is fixed to the contact carrier (14) with the aid of the contact pressure spring, and an armature (26) which is rigidly connected to the movable contact (11).
SE8800398A 1988-02-08 1988-02-08 switchgear SE460812B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE8800398A SE460812B (en) 1988-02-08 1988-02-08 switchgear
PCT/SE1989/000047 WO1989007327A1 (en) 1988-02-08 1989-02-07 Electric switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8800398A SE460812B (en) 1988-02-08 1988-02-08 switchgear

Publications (3)

Publication Number Publication Date
SE8800398D0 true SE8800398D0 (en) 1988-02-08
SE8800398L SE8800398L (en) 1989-08-09
SE460812B SE460812B (en) 1989-11-20

Family

ID=20371295

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8800398A SE460812B (en) 1988-02-08 1988-02-08 switchgear

Country Status (2)

Country Link
SE (1) SE460812B (en)
WO (1) WO1989007327A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2752087B1 (en) * 1996-07-30 1998-09-11 Schneider Electric Sa CIRCUIT-BREAKER TYPE SWITCHING APPARATUS
DE19716380C1 (en) * 1997-04-18 1998-10-08 Siemens Ag Electromagnetic switching device
FR3007888B1 (en) * 2013-06-27 2015-07-17 Schneider Electric Ind Sas ELECTRICAL CONTACTOR AND METHOD FOR CONTROLLING SUCH A CONTACTOR

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0079977B1 (en) * 1981-11-21 1986-08-06 Sprecher & Schuh AG Contact piece for an electric switch apparatus, in particular for a protrective switch
FR2517463A1 (en) * 1981-11-30 1983-06-03 Telemecanique Electrique CONTACTOR PROVIDED WITH SELF-PROTECTING MEANS AGAINST THE EFFECTS OF REPULSION FORCES BETWEEN THE CONTACTS, AND ITS ASSOCIATION WITH A DEVICE FOR CUTTING AND LIMITING SHORT CIRCUIT CURRENTS
FR2559308B1 (en) * 1984-02-03 1986-10-17 Telemecanique Electrique CONTACT EQUIPPED WITH A MAGNETIC COMPENSATOR WITH ADJUSTABLE RELEASE THRESHOLD AND CIRCUIT-BREAKER USING SUCH A CONTACT

Also Published As

Publication number Publication date
SE460812B (en) 1989-11-20
WO1989007327A1 (en) 1989-08-10
SE8800398L (en) 1989-08-09

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