EP1298692A3 - Switch contact arrangement for a low voltage circuit breaker - Google Patents

Switch contact arrangement for a low voltage circuit breaker Download PDF

Info

Publication number
EP1298692A3
EP1298692A3 EP02090331A EP02090331A EP1298692A3 EP 1298692 A3 EP1298692 A3 EP 1298692A3 EP 02090331 A EP02090331 A EP 02090331A EP 02090331 A EP02090331 A EP 02090331A EP 1298692 A3 EP1298692 A3 EP 1298692A3
Authority
EP
European Patent Office
Prior art keywords
contact
circuit breaker
voltage circuit
contact arrangement
bearing pin
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
EP02090331A
Other languages
German (de)
French (fr)
Other versions
EP1298692B1 (en
EP1298692A2 (en
Inventor
Ludvik Godesa
Marc Liebetruth
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1298692A2 publication Critical patent/EP1298692A2/en
Publication of EP1298692A3 publication Critical patent/EP1298692A3/en
Application granted granted Critical
Publication of EP1298692B1 publication Critical patent/EP1298692B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars
    • H01H2001/228—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars with insulating spacers between the contact bars

Landscapes

  • Breakers (AREA)

Abstract

Eine Schaltkontaktanordnung eines Niederspannungs-Leistungsschalters umfasst einen Kontaktträger und an diesem parallel zueinander angeordnete Kontakthebel, die auf einem am Kontaktträger abgestützten Lagerbolzen schwenkbar sind. Zwischen wenigstens einen der Kontakthebel (11) sind Abstandsstücke (20) angeordnet, die am äußeren Umfang eine dem Kontaktträger (10) gegenüberstehende Stützfläche (22) aufweisen. Im ausgeschalteten Ruhezustand der Schaltkontaktanordnung stehen die Stützflächen (22) den Gegenflächen (21) am Kontaktträger (10) mit einem minimalen Abstand gegenüber, der vorzugsweise wenige zehntel Millimeter beträgt. Wird die Schaltkontaktanordnung durch einen hohen Strom starken Belastungen ausgesetzt, so bleibt eine unvermeidliche Durchbiegung des Lagerbolzens (12) auf den genannten geringen Abstand beschränkt. Die Erfindung eignet sich für Niederspannungs-Leistungsschalter mit zahlreichen Kontakthebeln und entsprechend langen Lagerbolzen, wie dies insbesondere bei Bauformen solcher Leistungsschalter der Fall ist, die für hohe Nennströme und hohe Stoß- bzw. Kurzschlussströme bemessen sind.

Figure 00000001
A switch contact arrangement of a low-voltage circuit breaker comprises a contact carrier and at this parallel to each other arranged contact lever, which are pivotable on a supported on the contact carrier bearing pin. Between at least one of the contact lever (11) spacers (20) are arranged, which on the outer periphery of the contact carrier (10) opposite the support surface (22). When the switch contact arrangement is switched off, the support surfaces (22) face the mating surfaces (21) on the contact carrier (10) with a minimum distance, which is preferably a few tenths of a millimeter. If the switching contact arrangement is subjected to heavy loads by a high current, an unavoidable deflection of the bearing pin (12) remains limited to the mentioned small distance. The invention is suitable for low-voltage circuit breaker with numerous contact levers and correspondingly long bearing pin, as is the case in particular for types of such circuit breaker, which are sized for high rated currents and high surge or short-circuit currents.
Figure 00000001
EP02090331A 2001-09-28 2002-09-13 Switch contact arrangement for a low voltage circuit breaker Expired - Lifetime EP1298692B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10148947 2001-09-28
DE10148947A DE10148947C1 (en) 2001-09-28 2001-09-28 Switch contact device for LV power switch has spacers between contact levers provided with support surfaces limiting movement of contact carrier and deformation of contact carrier bearing bolt

Publications (3)

Publication Number Publication Date
EP1298692A2 EP1298692A2 (en) 2003-04-02
EP1298692A3 true EP1298692A3 (en) 2003-10-15
EP1298692B1 EP1298692B1 (en) 2004-12-15

Family

ID=7701360

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02090331A Expired - Lifetime EP1298692B1 (en) 2001-09-28 2002-09-13 Switch contact arrangement for a low voltage circuit breaker

Country Status (2)

Country Link
EP (1) EP1298692B1 (en)
DE (2) DE10148947C1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004009873A1 (en) * 2004-02-26 2005-09-15 Siemens Ag Switching contact arrangement
DE102004020654A1 (en) * 2004-04-22 2005-11-10 Siemens Ag Switching contact arrangement
DE102004058764A1 (en) * 2004-11-30 2006-06-01 Siemens Ag Terminal bus for flexible electrical conductor, has groove that corresponds with conductor wire end of flexible conductor, where groove is moulded in terminal bus and terminal bus is made from copper or copper alloy by extrusion process
DE102005009484A1 (en) * 2005-02-23 2006-09-14 Siemens Ag Contact lever assembly for a low voltage circuit breaker
US7935902B2 (en) * 2008-04-15 2011-05-03 General Electric Company Contact assembly of circuit breaker
CN101908443B (en) * 2010-08-05 2014-05-14 无锡新宏泰电器科技股份有限公司 Contact system for circuit breaker
EP2674953B1 (en) 2012-06-11 2018-01-24 ABB Oy Electric current switching apparatus
EP2674952B1 (en) * 2012-06-11 2018-10-10 ABB Oy Electric current switching apparatus
FR3122944B1 (en) * 2021-05-11 2023-11-10 Hager Electro Sas Mobile contact configured to be integrated into a circuit breaker

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1545113A (en) * 1966-11-21 1968-11-08 Gen Electric Articulated cut-off device for circuit breaker or switch
DE3539788A1 (en) * 1985-11-07 1987-05-14 Siemens Ag CONTACT ARRANGEMENT WITH CONTACT LEVER INTERMEDIATE LAYERS
US5012053A (en) * 1988-03-24 1991-04-30 Terasaki Denki Sangyo Kabushiki Kaisha Contact device for a switch
US5389906A (en) * 1993-08-20 1995-02-14 General Electric Cost-efficient industrial-rated molded case breaker
DE19629482C1 (en) * 1996-07-12 1997-09-11 Siemens Ag Low-voltage (LV) circuit breaker switch contact design

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE758108C (en) * 1937-10-09 1954-02-01 Siemens Schuckertwerke A G Contact arrangement for electrical switchgear
DE3679291D1 (en) * 1985-10-31 1991-06-20 Merlin Gerin KINEMATIC TRANSMISSION CHAIN BETWEEN THE CONTROL MECHANISM AND THE POLES OF AN ELECTRIC LOAD SWITCH WITH A SPRAYED INSULATION HOUSING.
DE29502564U1 (en) * 1995-02-16 1996-06-20 Siemens AG, 80333 München Electrical machine
DE29609824U1 (en) * 1996-05-21 1997-07-24 Siemens AG, 80333 München Low voltage circuit breaker with a contact carrier

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1545113A (en) * 1966-11-21 1968-11-08 Gen Electric Articulated cut-off device for circuit breaker or switch
DE3539788A1 (en) * 1985-11-07 1987-05-14 Siemens Ag CONTACT ARRANGEMENT WITH CONTACT LEVER INTERMEDIATE LAYERS
US5012053A (en) * 1988-03-24 1991-04-30 Terasaki Denki Sangyo Kabushiki Kaisha Contact device for a switch
US5389906A (en) * 1993-08-20 1995-02-14 General Electric Cost-efficient industrial-rated molded case breaker
DE19629482C1 (en) * 1996-07-12 1997-09-11 Siemens Ag Low-voltage (LV) circuit breaker switch contact design

Also Published As

Publication number Publication date
EP1298692B1 (en) 2004-12-15
DE50201764D1 (en) 2005-01-20
DE10148947C1 (en) 2003-02-13
EP1298692A2 (en) 2003-04-02

Similar Documents

Publication Publication Date Title
EP2649629A1 (en) Switch having a quenching chamber
EP1298692A3 (en) Switch contact arrangement for a low voltage circuit breaker
DE102010031907B3 (en) Unidirectional switching DC contactor
EP1859460A1 (en) Electrical contact arrangement having a first and a second contact piece
EP2230678A2 (en) Arc welding resistant contactor
DE102015114083A1 (en) Contact device for an electrical switch and electrical switch
EP1037239A3 (en) Multi-pole power switch
DE102012223168A1 (en) Electromechanical switching device, has arc-quenching device comprising first permanent magnet and second permanent magnet that are arranged on both sides of switching contact, where magnets are magnetized in opposite directions
WO2001003153A1 (en) Switching contact arrangement of a low voltage circuit breaker with main contacts, intermediate contacts and arcing contacts
EP0219449B1 (en) Contact arrangement for a low-voltage circuit breaker with a flexible current conductor
DE19727696B4 (en) Movable switch contact for low-voltage circuit breaker
EP1786067A1 (en) Electrical connection device
DE2734395A1 (en) DEVICE FOR CURRENT LIMITING
DE10108858A1 (en) Switching contact arrangement
EP1065683A3 (en) Circuit breaker with terminals for different rated currents
EP1374263A1 (en) Switching arrangement for low-voltage circuit breakers
DE2602579A1 (en) Vacuum switch for high currents - where rear parts of contacts have lower electric conductivity to minimise contact erosion
DE19707835A1 (en) Electrical switching device
DE19850430A1 (en) Circuit breaker screening section
EP0866535A3 (en) Ground fault circuit interrupter for circuit with high fault current
DE102018109750A1 (en) switching device
EP0844632A3 (en) Contact arrangement for ground fault circuit interrupter
DE10346361B3 (en) Terminal rail device for electrical LV switch, has at least one terminal rail provided with localized reduction in its cross-section for compression of current lines
DE102006008480B4 (en) separator
EP0780863B1 (en) Device for establishing an electrical connection

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RIC1 Information provided on ipc code assigned before grant

Ipc: 7H 01H 1/22 B

Ipc: 7H 01H 73/04 A

17P Request for examination filed

Effective date: 20031103

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

AKX Designation fees paid

Designated state(s): DE FR IT

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR IT

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50201764

Country of ref document: DE

Date of ref document: 20050120

Kind code of ref document: P

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

ET Fr: translation filed
26N No opposition filed

Effective date: 20050916

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20080924

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090913

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20161121

Year of fee payment: 15

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50201764

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180404

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20190918

Year of fee payment: 18

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200930